User Manual for Atherion models including: ATH74-525.2, Carel pCO5 Microprocessor Controller
Improper installation, adjustment, alteration, service or maintenance can cause property damage, injury or death. Read the installation,.
ATH74-525.2 1 July, 2021 CONTROLS SYSTEM MANUAL Packaged Ventilation/Dedicated Outside Air System (DOAS) model MPR ATH74-525.2 5H0837230001 THIS MANUAL IS THE PROPERTY OF THE OWNER.
ATH74-525.2 5H0837230001 July, 2021 CONTROLS SYSTEM MANUAL Packaged Ventilation/Dedicated Outside Air System (DOAS) model MPR Carel pCO5+ Microprocessor Controller WARNING 1. Improper installation, adjustment, alteration, service or maintenance can cause property damage, injury or death. Read the installation, operating and maintenance instructions thoroughly before installing or servicing this equipment. 2. Disconnect power supply before making wiring connections or working on this equipment. Follow all applicable safety procedures to prevent accidental power up. Failure to do so can result in injury or death from electrical shock or moving parts and may cause equipment damage. 3. For units equipped for dual power supply sources, both sources of power must be disconnected to prevent electrical shock and equipment damage. 4. Improper control adjustments and manual mode control can cause property damage, injury or death. Read the installation, operating and maintenance instructions thoroughly before making adjustments. IMPORTANT 1. The use of this manual is specifically intended for a qualified installation and service agency. All installation and service of this unit must be performed by a qualified installation and service agency. 2. These instructions must also be used in conjunction with the Installation and Service Manual originally shipped with the unit, in addition to any other accompanying component supplier literature. 3. This manual applies to the control system program version series 7.xxx. For any other version, please contact the Service Department. The program version that resides in the unit controller can be found in the Information section of the Installer Sub Menu. Refer to the manual for instructions on accessing this screen. CAUTION As with any mechanical equipment, personal injury can result from contact with sharp sheet metal edges. Be careful when you handle this equipment. THIS MANUAL IS THE PROPERTY OF THE OWNER. PLEASE BE SURE TO LEAVE IT WITH THE OWNER WHEN YOU LEAVE THE JOB. ATH74-525.2 1 CONTROLS SYSTEM MANUAL Table of Contents General Information............................................................. 2 Special Design Requests .................................................... 2 Model Nomenclature Note................................................... 2 Acronyms Used ................................................................... 2 Controller Overview............................................................. 3 Digital Scroll Compressor Operation................................... 4 Electronic Expansion Valve Operation ................................ 5 Sequence of Operation ..................................................6-17 1. Unit On/Off................................................................ 6 2. Occupancy Mode...................................................... 6 3. Damper Control Sequences ..................................6-8 4. Supply Fan Control Sequences ............................8-9 5. Exhaust Fan Control Sequences ........................9-10 6. Temperature Control Sequences.......................10-14 7. Dehumidification Control Sequences ................14-16 8. Energy Recovery Sequences............................16-17 9. Dual Power (Stand-By Power) Sequences ............ 17 pCO5+ Large Controller Layout ........................................ 18 pCOe Expansion Board Controller Layout ........................ 18 pCO5+ Input/Output (I/O) List ........................................... 19 pCOe Input/Output (I/O) List ............................................. 20 Controller Display/Keypad Functions ................................ 21 Menu Navigation ............................................................... 22 Password Protection ......................................................... 23 Controller Menus ..........................................................24-67 Menu Tree. ................................................................. 24 Main Status Screen ...............................................25-28 A. On/Off Unit Sub Menu............................................ 29 B. Setpoints Sub Menu..........................................30-31 C. Clock/Scheduler Sub Menu ................................... 33 D. Input/Output Sub Menu.....................................34-35 E. Alarm Logger Sub Menu and Alarm Listing ......36-41 F. Board Switch Sub Menu ......................................... 42 Programming the Remote Display Keypad............ 43 G. Service Sub Menu ............................................44-62 H. Manufacturer Sub Menu ........................................ 63 ERV Units - Main Status Screen ................................ 63 ERV Units - Service Sub Menu .............................64-67 Typical BMS System Variables ....................................68-73 Analog....................................................................68-69 Integer....................................................................70-71 Digital.....................................................................71-73 Special Design Requests Units are sometimes built units with special features as requested by the customer. This manual only covers standard features and does not include any changes made for special feature requests by the customer. Units built with special features are noted with a 5-digit SPO (Special Product Order) Number on the Serial Plate. Model Nomenclature Note While the entire model nomenclature should be reviewed, there are several key digits that will help identify the primary characteristics of the unit referred to in this manual: · Digits 4-5 = Unit Nominal Cooling Tons · Digit 6 = Unit Cabinet Size · Digit 7 = Unit Air Control Configuration Some key characteristics of Digit 7 that are helpful to know: Dampers A, B, C, R have OA and RA dampers D, E, F are 100% OA only Exhaust A, D have no exhaust B, E have energy recovery exhaust (referred to in this manual as ERV units) C, F have non-energy recovery exhaust (referred to in this manual as PEM units) · Digit 17 = Heat Type · Digit 18 = Heat Rating For the most current model nomenclature descriptions, please refer to the Model Nomenclature section in the Installation and Service Manual that shipped with the equipment. Acronyms Used Acronym BMS BPS CCS CF CFM Comp or CP CT CV Dehum Diff DOAS EA EEV ERV EVD Ex HGRH HOAS LL m Mod OA psig RA RH SA SetPt or SP Std-by Temp Vlv VT Meaning Building Management System Bits Per Second Capacity Control Solenoid Condenser Fan Cubic Feet per Minute Compressor Current Transformer Constant Volume Dehumidification Difference Dedicated Outside Air System Exhaust Air Electronic Expansion Valve Energy Recovery Ventilator Electronic Valve Driver Exhaust Hot Gas Re-Heat High Outside Air system Liquid Line "Minutes" or "Minimum" Modulation Outside Air Pounds per Square Inch gauge Return Air Relative Humidity Supply Air Setpoint Standby Temperature Valve Voltage Transformer 2 ATH74-525.2 CONTROLS SYSTEM MANUAL Controller Overview Controls are one of the most important components of specialized HVAC equipment. The control system is designed and engineered specifically for the model MPR Packaged Ventilation/Dedicated Outside Air System (DOAS) unit to ensure the unit operates safely, reliably, with optimized performance, and maintaining maximum energy efficiency. The control system utilizes a Carel pCO5+ Large programmable microprocessor controller. Highly advanced with a powerful microprocessor and fast processing speed, the controller features a number of I/O's for complex HVAC/R applications. The main controller board is housed in a plastic case that ensures a high index of protection and reduces the risk of electrostatic discharges due to incorrect handling. The controller offers greater safety due to the optical isolation of the serial pLAN, protection of the analog inputs in the event of incorrect connections, and an extended range of operating temperatures. Given the increasing demand for integration, pCO5+ can interface with BMS systems via many of the most commonly-used serial communication standards, using optional boards. pCO5+ Large Main Features: 10 Analog Inputs Uses 10K NTC temperature sensors 4-20ma Humidity and CO2 sensors for reliability 6 Analog Outputs 0-10vdc for easy fault finding 18 Digital inputs Used to monitor all aspects of the unit 18 Digital Outputs True relayed outputs for reliability Real Time Clock With battery backup and day light savings adjustment pLAN Communication To allow connectivity to space sensors and other controllers Built In Display Backlit easy to use and easy to read Alarm Logging With a snapshot of the unit sensors Run Hours logging With maintenance setpoints Password Protection Three levels of password protection Manual Control For easy startup and service Simple Interface Easy to understand menus and settings Built in Scheduler Up to 7 periods per day Either On/Off control or Occupied/Unoccupied Holiday Scheduler with up to 20 holiday periods Remote Display option Can be 100ft from unit using standard RJ12 cable All reset points fully adjustable ATH74-525.2 3 CONTROLS SYSTEM MANUAL Digital Scroll Compressor Operation Copeland Digital ScrollTM compressor technology is used to provide seamless modulating capacity over a wide operating range. The Digital Scroll compressor is capable of modulating capacity from 25 to 100%, however when combined with additional compressors, the system modulation range can be significantly greater. The following compressor combinations with modulation range are shown: Casing Size B B and C D Nominal Tons 7 10 to 30 30 to 60 Compressor Description Circuit 1 Circuit 2 Single Modulating Digital Scroll n/a Tandem Modulating Digital Scroll/On-Off n/a Tandem Modulating Digital Scroll/On-Off Tandem On-Off/On-Off System Modulation Range 25.0-100% 12.5-100% 6.3-100% The capacity modulation is achieved by timed loading of the compressor on a repeating 12 second cycle. The compressor is supplied with an external solenoid valve. This "normally closed" (de-energized) solenoid valve is a key component for achieving modulation. When the solenoid valve is in its normally closed position, the compressor operates at full capacity or in the "loaded state". When the solenoid valve is energized, the two scroll elements move apart axially, or into the "unloaded state". During the unloaded state, the compressor motor continues running, but since the scrolls are separated, there is no compression. During the "loaded state", the compressor delivers 100% capacity and during the "unloaded state", the compressor delivers 0% capacity. A cycle consists of "loaded state" and "unloaded state". By varying the time of "loaded state" and "unloaded state", an average capacity is obtained to precisely match the load demand of the system. Digital Scroll Capacity Modulation Examples: Example 1: On Time = 3 seconds Off Time = 9 seconds Average Capacity = 25% Example 2 On Time = 6 seconds Off Time = 6 seconds Average Capacity = 50% 25% Output 100 50% Output 100 Example 3 On Time = 9 seconds Off Time = 3 seconds Average Capacity = 75% 75% Output 100 Capacity (%) Capacity (%) Capacity (%) 0 0 1 2 3 4 5 6 7 8 9 10 11 12 Time (seconds) 0 0 1 2 3 4 5 6 7 8 9 10 11 12 Time (seconds) 0 0 1 2 3 4 5 6 7 8 9 10 11 12 Time (seconds) Starting Frequency and Minimum Compressor Running Time The following default values are used for compressor protection: Compressor Example (D-Cabinet Shown) Compressor Minimum Run-Time: This is the time required to ensure adequate oil return and sufficient motor cooling from the suction gas upon start-up of the compressor. The time is set for 60 seconds. Compressor Minimum Off-Time: This is the time used to provide a measure of hysteresis to the system to stop the compressor from starting immediately after it has stopped. The time is set for 30 seconds. Inter-Stage Delay: This is the time required between successive compressors. For example, when compressor 1 starts, compressor 2 cannot start until the interstage delay has timed out. The time is set for 120 seconds. 4 ATH74-525.2 CONTROLS SYSTEM MANUAL Electronic Expansion Valve Operation The unit uses electronic expansion valves to enable the correct metering of refrigerant. The valve uses both a pressure transducer and temperature probe to ensure that the superheat of the refrigeration system remains correct. Electronic expansion valves differ from thermostatic expansion valves in their ability to maintain control of the suction superheat at reduced head pressures. This can lead to significant energy savings, particularly at reduced loading and low ambient temperatures. EEV step position, superheat setpoint, head pressure set point, and other features can be viewed and adjusted via the microprocessor display - far easier than having to manually adjust thermostatic expansion valves. The electronic expansion valve(s) are driven by the Carel EVD Evolution Twin controller, comprised of two stepper motor drivers that can independently manage two electronic expansion valves. Each driver controls refrigerant superheat and optimises refrigerant circuit performance. Each circuit has one expansion valve for the evaporator coil. For units that include optional modulating hot gas reheat, another expansion valve is included for hot gas reheat capacity control. Also included for each EVD Evolution Twin controller is a Carel EVD Ultracap which provides emergency power supply to ensure complete closing of the valves even when there is a sudden loss of main unit power supply. ATH74-525.2 5 CONTROLS SYSTEM MANUAL Sequence of Operation The model MPR Packaged Ventilation unit is designed for both Dedicated Outdoor Air Systems (DOAS) and High Outdoor Air Systems (HOAS) applications, allowing space ventilation or make-up air with accurate control of temperature and humidity via mechanical cooling, heating and dehumidification during year round outdoor ambient conditions. The unit is also available with an Energy Recovery Ventilation option with standard economizer bypass (for all energy recovery wheel sizes except 81") to provide for reduced operating costs and increased energy savings. The unit is intelligently managed by the factory installed programmable microprocessor controller with control operating sequences detailed below. The controls are pre-configured at the factory for the customer selected control strategy so the unit is ready when it reaches the jobsite. 1. Unit On/Off In order for the unit to run, power must be applied and the controller display/keypad used to enable the unit via the "ON/OFF UNIT" sub menu. · If the unit is "ON", control will be determined by the current occupancy mode of the unit and control configuration/setpoints. · If the unit is "OFF", no setpoint control will take place and the unit will remain in stand-by with all control devices disabled. In addition, the following control sources are also available as secondary means to turn the unit on and off: a) On/Off by Digital Input: Available when Remote On/Off Switch wired to unit controller b) On/Off by BMS: Available when BMS Interface Card installed in unit controller c) On/Off by pAD Thermostat: Available when a pAD Thermostat wired to unit controller d) On/Off by Clock/Schedule: Always available from schedule within the unit controller 2. Occupancy Mode When the unit is "ON", there are two modes of occupancy occupied and unoccupied. Occupancy can be determined by any of the following: a) Occupancy by Digital Input: Set via the replacement of jumper wire on controller input ID7 where: · 0V = Unoccupied · 24V = Occupied a) BMS Call: Available when BMS Interface Card installed in unit controller b) Time Schedule: Configured via the "CLOCK/SCHEDULER" menu. c) Space Occupancy Override: Set via the override button found on the pAD thermostat. Note: To utilize space occupancy control, a space pAD device must be installed. If there is no space pAD installed there will be no option to use occupied and unoccupied control setpoints. 3. Damper Sequences DOAS Damper Configuration Utilizes outside air dampers only with a 2-position on/off actuator. The available damper controls are as follows: A. Two Position Control: Outside air dampers are open to 100% outside air position when in the occupied mode. Outside air dampers are closed in the unoccupied mode. HOAS Damper Configuration Utilizes outside and return dampers with a modulating 2-10V damper actuator controlled by a modulated signal from an analog output on the controller to drive both the outdoor air damper and return air damper simultaneous in opposing directions. The outside air damper and return air damper positions always total 100%. For example, if the outside air damper is at 70%, the return air damper will be at 30%. The available damper controls are described below for the occupied mode of operation with minimum 20% outside air (80% return air) for base rate ventilation. In all cases, outside air dampers are closed and return air dampers open in the unoccupied mode. (continued next page) 6 ATH74-525.2 CONTROLS SYSTEM MANUAL Sequence of Operation (continued) A. Two Position Control: Dampers open to a customer defined minimum position between 20% and 100% outside air. B. Digital Input (Multi-Position) Control: The unit controller sends the damper actuator to one of up to four position setpoints determined by the combinational logic at one or two of the digital inputs on the controller(s), as shown in the following table. Each of the four setpoint values can be modified between limits of 20% and 100% outside air. Control Type Two Position via Digital Input Three Position via Digit Input Digital Input 15 Open (0V) Closed (24V) Open (0V) Open (0V) Closed (24V) pCOe Digital Input 1 Not Used Not Used Open (0V) Closed (24V) OP or CL Position (Default) 1 (50.0%) 2 (100.0%) 1 (50.0%) 2 (75.0%) 3 (100.0%) Note: For all cases, the combinational logic does not activate the unit. The logic determines which position the dampers are in if in the OCCUPIED mode. Occupied can be via schedule or occupancy digital input. C. Building Pressure Control: Dampers open to a customer defined minimum position between 20% and 100% outside air. A building pressure sensor installed in the space monitors the pressure relative to atmospheric pressure outside the space and sends a proportional 4-20mA signal back to the main unit controller. The controller will then compare that pressure reading against the building pressure setpoint (default value is 0.100" W.C., adjustable between limits of 0.000" and 5.000" W.C.) and control as follows: a) If the building pressure is below the setpoint, the dampers will modulate to increase the volume of outside air, increasing the building pressure. The dampers will modulate to the maximum outside air setpoint, up to 100%. b) If the building pressure is above the setpoint, the dampers will modulate to reduce the volume of outside air, decreasing the building pressure. The dampers will modulate to the minimum outside air setpoint, down to 20%. D. Differential Enthalpy Economizer with Dew Point Offset Control: Dampers open to a customer defined minimum position between 20% and 100% outside air. Outdoor and return air enthalpy sensors are monitored by the controller and will control as follows: a) If the outdoor enthalpy and dew point is higher than the return air enthalpy and dew point, the dampers will modulate to the minimum position setpoint to decrease the volume of outside air to avoid placing additional load on the mechanical cooling/dehumidification system. b) If the outdoor enthalpy or dew point is lower than the return air enthalpy or dew point, the dampers will modulate to increase the volume of outside air to maintain a dry bulb temperature based on the intersection of the mixed air process line and target dew point temperature setpoint. The target dew point is control setup selected and can be mixed air, space (requires a space pAD), or mixed air and space (requires a space pAD). The mechanical heating/cooling/dehumidification will then modulate as needed to maintain the active supply air temperature setpoint. E. Demand Controlled Ventilation (CO2) Control: Dampers open to a customer defined minimum position between 20% and 100% outside air. A space mounted CO2 sensor monitors the space CO2 level and sends a corresponding proportional 4-20mA signal back to the main unit controller The controller will then compare that CO2 reading against the CO2 setpoint (default value is 800PPM, adjustable between limits of 0 and 2000PPM) and the dampers are controlled as follows: a) If the CO2 level is below the setpoint, the dampers will modulate to the minimum outside air position. b) If the CO2 level is above the setpoint, the dampers will modulate to increase the volume of outside air to dilute the CO2 levels below the setpoint. The dampers will modulate to the maximum outside air setpoint, up to 100%. F. Differential Enthalpy Economizer with Dew Point Offset Control and CO2 Override: Dampers open to a customer defined minimum position between 20% and 100% outside air. Outdoor and return air enthalpy sensors and a space mounted CO2 sensor are monitored by the controller. The dampers are controlled as follows: a) If the outdoor enthalpy and dew point is higher than the return air enthalpy and dew point, the dampers will modulate to the minimum position setpoint to decrease the volume of outside air to avoid placing additional load on the mechanical cooling/dehumidification system. b) (continued next page) If the outdoor enthalpy or dew point is lower than the return air enthalpy or dew point, the dampers will modulate to increase the volume of outside air to maintain a dry bulb temperature based on the intersection of the mixed air process line and target dew point temperature setpoint. The target dew point is control setup selected and can be mixed air, space (requires a space pAD), or mixed air and space (requires a ATH74-525.2 7 CONTROLS SYSTEM MANUAL Sequence of Operation (continued) space pAD). The mechanical heating/cooling/dehumidification will then modulate as needed to maintain the active supply air temperature setpoint. c) Concurrently with conditions (a) and (b) above, the space mounted CO2 sensor monitors the space CO2 level and sends a corresponding proportional 4-20mA signal back to the main unit controller The controller will then compare that CO2 reading against the CO2 setpoint (default value is 800PPM, adjustable between limits of 0 and 2000PPM) and control as follows: i. If the CO2 level is below the setpoint, the dampers will control to steps (a) and (b) above. ii. If the CO2 level is above the setpoint, the controller will override the enthalpy economizer dew point control steps (a) and (b) and the dampers will modulate to increase the volume of outside air to dilute the CO2 levels below the setpoint. The dampers will modulate to the maximum outside air setpoint, up to 100%. G. Building Management System (BMS) Control: Dampers will open or close based on a command from the customer BMS. There are no internal control setpoints or sensors for this mode of operation. 4. Supply Fan Sequences The unit features direct drive fans with motor controlled by variable frequency drive(s). Supply fan controls are coordinated with damper controls to avoid control conflicts. For example, you cannot have building pressure control on both dampers and supply fan. The available supply fan controls are described below for the occupied mode of operation. In all cases, the fan is either off during unoccupied or intermittent on a call for space heating, cooling, or dehumidification if equipped with a space pAD and configured for unoccupied setback operation. The fan speed will be based on the occupied control point. For variable air volume applications described below, there are operating range limitations to protect the equipment. Minimum speed is based on the greater of 50% of design airflow or minimum design airflow. Consider the following scenarios for the B-cabinet size unit which has an allowable airflow range of 1,100 to 6,000CFM: · If the design airflow is 3,000CFM, 50% airflow is 1,500CFM, which is greater than the 1,100CFM minimum, therefore 1,500CFM (50%) is the minimum airflow. · If the design airflow is 1,800CFM, 50% airflow is 900CFM. In this case, the minimum 1,100CFM of the allowable airflow range is greater, so the minimum airflow is 1,100CFM (61%). The available supply fan control options are as follows: A. Constant Speed: The supply fan operates at a constant speed that does not dynamically change. The default setpoint is 100% but can be adjusted within the allowable range described above. B. Digital Input (Multi-Speed) Control: The unit controller sends the supply fan VFD to one of up to four speed setpoints determined by the combinational logic at one or two of the digital inputs on the controller(s), as shown in the following table. Each of the four setpoint values can be modified between the range described above. Control Type Two Speed via Digital Input Three Speed via Digit Input Digital Input 15 Open (0V) Closed (24V) Open (0V) Open (0V) Closed (24V) pCOe Digital Input 1 Not Used Not Used Open (0V) Closed (24V) OP or CL Speed (Default) 1 (50.0%) 2 (100.0%) 1 (50.0%) 2 (75.0%) 3 (100.0%) Note: For all cases, the combinational logic does not activate the unit. The logic determines which speed the fan is in if in the OCCUPIED mode. Occupied can be via schedule or occupancy digital input. C. Building Pressure Control: The supply fan VFD will ramp up to the minimum speed setpoint. A building pressure sensor installed in the space monitors the pressure relative to atmospheric pressure outside the space and sends a proportional 4-20mA signal back to the main unit controller. The controller will then compare that pressure reading against the building pressure setpoint (default value is 0.100" W.C., adjustable between limits of 0.000" and 5.000" W.C.) and control as follows: a) If the building pressure is below the setpoint, the VFD will modulate to increase the volume of outside air, increasing the building pressure. The VFD will modulate up within the allowable range described above. b) If the building pressure is above the setpoint, the VFD will modulate to reduce the volume of outside air, decreasing the building pressure. The VFD will modulate down with the allowable range described above. (continued next page) 8 ATH74-525.2 CONTROLS SYSTEM MANUAL Sequence of Operation (continued) D. Duct Pressure Control: The supply fan VFD will ramp up to the minimum speed setpoint. A duct pressure sensor installed downstream in the supply duct monitors the pressure in the duct and sends a proportional 4-20mA signal back to the main unit controller. The controller will then compare that pressure reading against the duct pressure setpoint (default value is 1.500" W.C., adjustable between limits of 0.000" and 5.000" W.C.) and control as follows: a) If the duct pressure is below the setpoint, the VFD will modulate to increase the volume of supply air, increasing the duct pressure. The VFD will modulate up within the allowable range described above. b) If the duct pressure is above the setpoint, the VFD will modulate to reduce the volume of supply air, decreasing the duct pressure. The VFD will modulate down with the allowable range described above. In order to prevent over pressurization of the duct work, if the duct pressure sensor detects a pressure above 5.000" W.C. then the unit is immediately shutdown via the high static pressure alarm. The unit will remain shut down in alarm until the alarm condition is cleared via the handheld display or BMS reset call. E. Demand Controlled Ventilation (CO2) Control: The supply fan VFD will ramp up to the minimum speed setpoint. A CO2 sensor installed in the space monitors the CO2 level and sends a proportional 4-20mA signal back to the main unit controller. The controller will then compare that CO2 reading against the CO2 setpoint (default value is 800PPM, adjustable between limits of 0 and 2000PPM) and control as follows: a) If the CO2 level is below the setpoint, the VFD will modulate to reduce the volume of outside air. The VFD will modulate down with the allowable range described above. b) If the CO2 level is above the setpoint, the VFD will modulate to increase the volume of outside air to dilute the CO2 levels below the setpoint. The VFD will modulate up with the allowable range described above. F. Building Management System (BMS) Control: The supply fan VFD will modulate within the range described above based on a command from the customer BMS. There are no internal control setpoints or sensors for this mode of operation. Note for Units with Energy Recovery: Energy Recovery equipped units include an economizer bypass (units with 74" wheels or smaller), whose function is described in the Energy Recovery section. When the economizer bypass damper opens, the total static pressure that the supply fan must overcome is reduced, which will cause the airflow to increase, increasing energy consumption. For all control types above, there is a setting called "Bypass Offset" (default is 10%, adjustable from 0% to 20%) that reduces the fan speed in an attempt to maintain approximately the same airflow as when the bypass is closed. With the default 10% setting, the supply fan speed will be reduced by 10% when the bypass is opened. 5. Exhaust Fan Sequences When equipped with an exhaust fan option, the unit features motors controlled by either a motor starter or a variable frequency drive. Exhaust fan controls are coordinated with supply fan controls to avoid control conflicts. For example, you cannot have building pressure control on both supply and exhaust fans. There are three different exhaust fan configurations that can be enabled. Depending on which exhaust fan configuration is selected determines which control sequences are available. The exhaust fan configurations are: a) ON/OFF Relay: The exhaust fan is enabled by a relay output on the PRTU controller. The enable signal is sent to the exhaust fan when the unit is in occupied mode and supply fan is active. This is used with either PEM (non-energy recovery Power Exhaust Module) equipped units that are single speed motor starter controlled or for activating remote exhaust fans by others. b) ERV (Energy Recovery Ventilation): This option is for units configured with Energy Recovery Exhaust and is only available with an exhaust fan variable frequency drive for motor control as described below. c) PEM (Power Exhaust Module): This option is for units configured with Non-Energy Recovery Exhaust with variable frequency drive motor control as described below. For variable air volume exhaust applications described below, there are operating range limitations to provide proper equipment function. For units with an ERV, the allowable range is up to 50% to 100% of design airflow. For units with a PEM, the allowable range is 20% to 100% of design airflow. The available exhaust fan controls are described below for the occupied mode of operation. In all cases, the fan is off during the unoccupied mode of operation. A. Constant Speed: The supply fan operates at a constant speed that does not dynamically change. There are two options available for Constant Speed: 1. Variable Frequency Drive (ERV or PEM Units): The unit includes a variable frequency drive. The default setpoint is 100% but can be adjusted within the allowable range described above. (continued next page) ATH74-525.2 9 CONTROLS SYSTEM MANUAL Sequence of Operation (continued) 2. Single Speed Motor Starter (PEM Units Only): The unit includes a single speed motor starter. The unit exhaust fan operates at 100% speed and is non-adjustable through the motor starter control. B. Digital Input (Multi-Speed) Control (PEM Units Only): The unit controller sends the exhaust fan VFD to one of up to four speed setpoints determined by the combinational logic at one or two of the digital inputs on the controller(s), as shown in the following table. Each of the four setpoint values can be modified between the range described above. Control Type Two Speed via Digital Input Three Speed via Digit Input Digital Input 15 Open (0V) Closed (24V) Open (0V) Open (0V) Closed (24V) pCOe Digital Input 1 Not Used Not Used Open (0V) Closed (24V) OP or CL Speed (Default) 1 (50.0%) 2 (100.0%) 1 (50.0%) 2 (75.0%) 3 (100.0%) Note: For all cases, the combinational logic does not activate the unit. The logic determines which speed the fan is in if in the OCCUPIED mode. Occupied can be via schedule or occupancy digital input. C. Supply Fan Offset (ERV or PEM Units): The exhaust fan will run at a constant speed determined by the supply fan speed and a configurable offset value (default -10%, adjustable from -20% to 20%). For example, if the supply fan is operating at 70% and the offset is -10%, then the exhaust fan operate at 60% (70% - 10% = 60%). D. Building Pressure Control (ERV or PEM Units): The exhaust fan VFD will ramp up to the minimum speed setpoint. A building pressure sensor installed in the space monitors the pressure relative to atmospheric pressure outside the space and sends a proportional 4-20mA signal back to the main unit controller. The controller will then compare that pressure reading against the building pressure setpoint (default value is 0.100" W.C., adjustable between limits of 0.000" and 5.000" W.C.) and control as follows: a) If the building pressure is below the setpoint, the VFD will modulate to decrease the volume of exhaust air, increasing the building pressure. The VFD will modulate down within the allowable range described above. b) If the building pressure is above the setpoint, the VFD will modulate to increase the volume of exhaust air, increasing the building pressure. The VFD will modulate up with the allowable range described above. E. Building Management System (BMS) Control (ERV or PEM Units): The exhaust fan VFD will modulate within the range described above based on a command from the customer BMS. There are no internal control setpoints or sensors for this mode of operation. Note for Units with Energy Recovery: Energy Recovery equipped units include an economizer bypass (units with 74" wheels or smaller), whose function is described in the Energy Recovery section. When the economizer bypass damper opens, the total static pressure that the exhaust fan must overcome is reduced, which will cause the airflow to increase, increasing energy consumption. For all control types above, there is a setting called "Bypass Offset" (default is 10%, adjustable from 0% to 20%) that reduces the fan speed in an attempt to maintain approximately the same airflow as when the bypass is closed. With the default 10% setting, the exhaust fan speed will be reduced by 10% when the bypass is opened. 6. Temperature Control Sequences Supply Air Temperature Control The temperature control sequences maintain the required supply air temperature with heating, cooling, and economizer modes of operation. The supply air temperature is monitored by a factory supplied, field installed supply air sensor that is mounted downstream of the unit discharge in the supply duct. Temperature is maintained by modulation of cooling and heating systems to meet the supply air temperature setpoint. The active supply air temperature control will be one of three possible setpoints: A. Cooling: The setpoint will be 55.0°F (adjustable from 45°F to 90°F). Cooling operation requires a supply air reset be used to create a call for cooling, as discussed in the "Supply Air Reset Controls" section. B. Heating: The setpoint will be 85.0°F (adjustable from 60°F to either 100°F [condensing gas heat or electric] or 130°F [non-condensing gas heat]). Heating operation requires a supply air reset be used to create a call for heating, as discussed in the "Supply Air Reset Controls" section. C. Neutral Air: The setpoint will be 70°F (adjustable from 50°F to 90°F). The neutral air setpoint is active if there is no call for heating or cooling from a supply air reset. Dehumidification is not covered in this section. It will be detailed in a separate section called "Dehumidification Control Sequences". (continued next page) 10 ATH74-525.2 CONTROLS SYSTEM MANUAL Sequence of Operation (continued) Economizer Operation There are two modes of operation that are economizer based control, and will be indicated as such on the controller status screen. The two possible modes indicated on the controller screen are as follows: A. Econ: Econ will be displayed when the Enthalpy Economizer damper control (if equipped) is active without any mechanical cooling active. For more information on the Enthalpy Economizer damper control, refer to the "Damper Sequences" section. B. Fan Only: Fan-Only will be displayed whenever mechanical cooling/dehumidification or heating is not required and the supply air temperature is within +/- 5°F (adjustable) of the active setpoint. Supply Air Temperature Resets While the basic control for supply air temperature control is neutral air, reset of the supply air temperature for heating or cooling can be configured using either a space temperature sensor (pAD), the outdoor air temperature sensor, or a combination of both. Each is described as follows: A. Space Temperature Reset: The space reset call comes from the pAD mounted in the conditioned space. This call is generated based on the space temperature and space cooling and heating setpoints. The default space temperature setpoint values are as follows: 1. Occupied Mode · Cooling: 74.0°F (adjustable from 50.0°F to 90.0°F) · Heating: 70.0°F (determined by the Heat Offset, see next item) · Heating Offset: 4.0°F (adjustable from 2.0°F to 20.0°F) · Heating Differential: 1.0°F (adjustable from 1.0°F to 10°F) · Cooling Differential: 1.0°F (adjustable from 1.0°F to 10°F) The Heating Offset determines how far below the cooling setpoint the temperature must fall before the unit enters the heating mode. The Heating and Cooling differentials prevent short cycling. Graphically, the occupied mode setpoints above are as follows: Note the bottom row displays the Heating, Neutral Air, and Cooling supply air reset temperature setpoints. For example, with a cooling setpoint of 74.0°F the space must exceed 75.0°F (74.0°F + 1.0°F) before a cooling reset call is sent to the unit. The space must fall below 74°F before the cooling reset condition is cleared. On a call for space cooling, the supply air temperature setpoint will be reset to 55°F. Once the call for cooling is satisfied, the unit will return to the neutral air active setpoint which is 70°F. 2. Unoccupied Mode · Cooling: 85.0°F (adjustable from 70.0°F to 90.0°F) · Heating: 62.0°F (adjustable from 50.0°F to 70.0°F) · Heating Differential: 2.0°F (adjustable from 1.0°F to 10°F) · Cooling Differential: 2.0°F (adjustable from 1.0°F to 10°F) Graphically, the unoccupied mode setpoints above are as follows: (continued next page) ATH74-525.2 11 CONTROLS SYSTEM MANUAL Sequence of Operation (continued) Note the bottom row displays the Heating and Cooling supply air reset temperature setpoints. For space temperatures between the Heating and Cooling setpoints, the unit is in Stand-By mode. For example, with a heating setpoint of 62.0°F the space must fall below 60.0°F (62.0°F - 2.0°F) before a heating reset call is sent to the unit. The space must rise above 62°F before the heating reset condition is cleared. On a call for space heating, the supply air temperature setpoint will be reset to 80°F (was adjusted from the default reset setting of 85°F in this example). Once the call for heating is satisfied, the unit will return to the Stand-By mode of operation. B. Outdoor Air Temperature Reset: The outdoor reset calls comes from the outdoor air temperature sensor. This call is generated based on the outdoor temperature and outdoor cooling and heating setpoints. The resulting supply air temperature setpoint is proportionally increased in the heating reset mode or decreased in the cooling reset mode. This is only active in the occupied mode. This method of temperature control is best suited to preventing the space temperature rising too high during high ambient conditions or falling too low during low ambient conditions. The default temperature setpoint values are as follows: 1. Heating Neutral Air Reset (values below on Setpoints S1 screen) · OA (top left value): 30.0°F (adjustable from 0.0°F to 50.0°F) · HTG (top right value): 78.0°F (adjustable from 60.0°F to 100.0°F) · OA (bottom left value): 68.0°F (adjustable from 50.0°F to 75.0°F) · NA (bottom right value): 70.0°F (adjustable from 60.0°F to 80.0°F) 2. Cooling Neutral Air Reset (values shown below on Setpoints S2 screen) · OA (top left value): 72.0°F (adjustable from 65.0°F to 75.0°F) · NA (top right value): 70.0°F (adjustable from 60.0°F to 80.0°F) · OA (bottom left value): 85.0°F (adjustable from 75.0°F - 100.0°F) · CLG (bottom right value): 55.0°F (adjustable from 50.0°F - 80.0°F) The Outdoor Air Temperature Reset sequence is much easier to understand if viewed graphically. Reviewing the setpoints and the graphic below, the following is the sequence: · Outside Air between 68°F and 72°F: The neutral air setpoint will be 70.0°F. · Outside Air below 68°F: The neutral air setpoint is adjusted as follows: o From 68°F down to 30°F: The setpoint will be proportionally increased from 70.1°F to 77.9°F. o Below 30°F: The setpoint will be 78.0°F. · Outside Air above 72°F: The neutral air setpoint is adjusted as follows: o From 72°F up to 85°F: The setpoint will be proportionally decreased from 69.9°F to 54.9°F. o Above 85°F: The setpoint will be 55.0°F. (continued next page) 12 ATH74-525.2 CONTROLS SYSTEM MANUAL Sequence of Operation (continued) Mechanical Cooling/Heating System Response to Cooling/Heating Resets With supply air heating and cooling resets detailed above, the following describes the control of mechanical cooling and heating to maintain the active supply air setpoint. A. Cooling: On receiving a call for cooling the unit controller compares the supply air temperature from the duct sensor with the active supply air temperature setpoint in order to generate a cooling demand, ranging from 0-100%, using a proprietary PI control loop. Up to four scroll compressors (CP1 through CP4) are used on up to two refrigeration circuits. All cabinet sizes have CP1 and CP 2 located on circuit 1. The D-Cabinet unit adds an additional circuit with CP3 and CP4. In all cases, CP1 is always a modulated digital scroll compressor while the remaining compressors are fixed speed scroll compressors. The combination of a digitally modulated and fixed speed scroll compressors allows precise capacity modulation at lower loads. Compressor enabling logic includes the required minimum on/off compressor anti-cycle times in order to ensure mechanical protection of the compressors. Compressor lockout alarms, and temperature lockouts, and compressor envelope control are also managed by the unit controller, inhibiting compressor usage if required, in order to protect the compressor. Compressor envelope control monitors operation to ensure minimum and maximum evaporating and condensing temperatures to ensure the operating limits based of the compressor are not exceeded. The following alarms will inhibit a compressor from being used in the compressor rotation and activation calculation. Common Compressor Lockouts Applicable to all units. 1. Supply Air Temperature Sensor Fault or Disconnected. 2. Low Outdoor Air Temperature DX Cool Lockout (45.0°F) 3. Unit Door Open 4. Condensate Float Switch Circuit 1 Compressor Lockouts Applicable to all cabinet unit sizes. 1. HP Switch 2. LP Switch 3. Digital Scroll Compressor Discharge Temperature High 4. Low Superheat CCT1 5. Low Suction Temperature CCT1 6. Condenser Fan VFD Alarm 7. EVD1 Motor "A" Alarm 8. EVD1 Not Ready 9. CP1/CP2 Operating Outside Envelope Circuit 2 Compressor Lockouts Applicable to D cabinet unit sizes. 1. HP Switch 2. LP Switch 3. Low Superheat CCT2 4. Low Suction Temperature CCT2 5. Condenser Fan VFD Alarm 6. EVD2 Motor "A" Alarm 7. EVD2 Not Ready 8. pCOe Expansion Board Offline 9. CP3/CP4 Operating Outside Envelope (continued next page) ATH74-525.2 13 CONTROLS SYSTEM MANUAL Sequence of Operation (continued) B. Heating: On receiving a call for heating the unit controller compares the supply air temperature from the duct sensor with the active supply air temperature in order to generate a heating demand, ranging from 0-100%, using a proprietary PI control loop. The unit is available with Gas, Electric, or Hot Water heating options. Each of these options are available individually, however the Gas is available with Auxiliary Electric Heat that can be used separately or simultaneously. The sequence of each is as follows: a) Gas Heating: Gas burner operation is regulated by a separate microprocessor control board. The unit controller sends a 0-10VDC modulating signal to that controller to indicate heating demand. The control board interprets this demand signal and uses its own internal control scheme to manage the required capacity modulation to maintain the required active supply air temperature setpoint. b) Electric Heating: Electric heating element operation is regulated by separate contactor(s) and SCR controller. The unit controller uses relay output(s) to close the contactor(s) and sends a 0-10VDC modulating signal to the SCR controller to manage the required capacity modulation to maintain the active supply air temperature setpoint. c) Gas with Auxiliary Electric Heating: The gas heating control previously detailed is paired with 20kW or 40kW (nominal) of fully modulated SCR controlled electric heat as detailed for electric heating. The gas and electric heating are staged based on demand as follows: i. Aux electric heating is activated when heating demand begins to build and is above 1% but less than the heating demand required to enable a furnace. When the unit heating demand exceeds the minimum percentage to turn on the gas furnace system, then the furnace heat is turned on and the aux electric heat is turned off. The aux electric heat is then locked out until the total heating demand reaches 0% once again. ii. Aux electric heating is also activated when heating demand exceeds the capacity of the gas heating system. This is referred to as "Aux. Elec. Heat Boost" mode. This function is enabled by default and allows the aux electric heating to assist the gas furnace heating if the furnace heating is active at 100.0% (configurable) for a time period of 20 minutes (configurable). The boost mode will then be exited once the heating demand falls below 90.0% (configurable). d) Hot Water Heating: A fully modulated 2-10VDC analog signal from the unit controller is sent directly to a modulating hot water valve by others. 7. Dehumidification Control Sequences The dehumidification (dehum) control is sequenced to maintain supply air that has a dew point below the setpoint to reduce or avoid adding to the space relative humidity. Dehum can be initiated based on space relative humidity (RH), mixed air dew point (MADP), outdoor air dew point (OADP), or a combination of space RH / OADP. If the dehum mode is set to none, there is no dehum sequence initiated. Temperature control is not covered in this section. It is detailed in a separate section called "Temperature Control Sequences". Dehum Initiation Options A. Space RH Control: This option requires a space pAD with humidity sensing be installed in the space. The call for dehum comes from the pAD and is generated based on the space RH and the space RH setpoints. The default space humidity setpoints are as follows: · Occupied Mode: 60% RH (adjustable from 0% to 100% RH) · Unoccupied Mode: 70% RH (adjustable from 0% to 100% RH) A 5% RH offset is applied to the space dehum setpoints to prevent short cycling of a dehum call from the space pAD. For example, with an occupied humidity setpoint of 60% RH, the space must be dehumidified to 55% RH before the dehum call is ended. B. Outdoor Air DP Control: This option requires an outdoor temperature/humidity sensor be installed, which is factory installed on all DOAS and HOAS units. The call for dehum comes from the outdoor sensor and is generated based on the calculated outdoor air dew point and comparing against the outdoor air dew point setpoint. This cannot call for dehum in unoccupied. See Combination Outdoor DP/Space RH control option. The default dew point setpoint is · Occupied Mode: 55°F (adjustable from 45.0°F to 65.0°F). · Unoccupied Mode: Not Applicable (continued next page) 14 ATH74-525.2 CONTROLS SYSTEM MANUAL Sequence of Operation (continued) C. Combination Outdoor Air DP and Space RH Control: This option is a combination of both Outdoor Air DP and Space RH controls described above with all the same hardware requirements. In addition to adding occupied space RH dehum initiation, it also adds unoccupied space RH dehum initiation, as outdoor air DP control alone does not permit unoccupied operation. The default dew point setpoints are: · Occupied Mode: 55°F (adjustable from 45.0°F to 65.0°F). · Unoccupied Mode: 60.0°F (adjustable from 45.0°F to 65.0°F) D. Mixed Air DP Control: This option requires a return air temperature/humidity sensor, an outdoor air temperature/ humidity sensor, and mixed air dry bulb temperature sensor be installed. These sensors are standard with all HOAS units. The call for dehum comes from the calculated mixed air DP value and compared against the mixed air DP setpoint. This cannot call for dehum in unoccupied. See Combination Mixed Air DP/Space RH control option. The default mixed air DP setpoints are as follows: · Occupied Mode: 55°F (adjustable from 45.0°F to 65.0°F). · Unoccupied Mode: Not Applicable E. Combination Mixed Air DP and Space RH Control: This option is a combination of both Mixed Air DP and Space RH controls described above with all the same hardware requirements. In addition to adding occupied space RH dehum initiation, it also adds unoccupied space RH dehum initiation, as mixed air DP control alone does not permit unoccupied operation. The default mixed air DP setpoints are as follows: · Occupied Mode: 55°F (adjustable from 45.0°F to 65.0°F). · Unoccupied Mode: 60.0°F (adjustable from 45.0°F to 65.0°F) Dehum/Cooling Control Priority Dehumidification is given priority over cooling as follows: · No Cooling Demand: When a call for dehum is received, the unit will transition into dehum mode immediately. · Cooling Demand: When a call for dehum is received while the unit is in cooling mode, the unit will transition from cooling to dehum mode, via a demand transfer process. The demand transfer process allows both cooling and dehum demand to build simultaneously so that compressors already operational from cooling can remain active and modulation changes based on dehum demand in place of cooling demand, without the need to restart the compressor or compressor rotation calculation. This results in more precise supply air temperature control and less cycling of the units compressors as it transitions from one mode to the other. Mechanical Cooling/Heating System Response to Dehum Initiation With dehum initiation controls and dehum/cooling control priority detailed above, the following describes the control of the mechanical cooling system, including hot gas reheat and condenser fans, to maintain the active supply air setpoint required to achieve dehumidification. A. Compressor Control: Compressor(s) are controlled to decreased and hold the evaporator coil temperature below the dew point of the air passing through the evaporator coil to enable dehumidification of the air. The compressor control is handled in one of two ways: 1. Single Circuit Configurations (B & C-Cabinet): Compressors are controlled to maintain a suction line pressure. The suction line pressure default setpoint is 130.0 PSI (adjustable from 110.0 to 155.0 PSI). This suction pressure equates to an evaporating temperature of 45.0°F. The average air off coil temperature is slightly higher than the evaporating temperature. 2. Dual Circuit Configurations (D-Cabinet): Compressors are controlled to maintain an evaporator coil leaving air temperature. The evaporator coil leaving air temperature default setpoint is 50.0°F (adjustable from 45.0°F to 70.0°F). B. Hot Gas Reheat (HGRH) Control: The supply air temperature sensor mounted in the supply duct is monitored by the unit controller. The HGRH modulating valves are controlled to maintain the active supply air setpoint, as described in Section "6. Temperature Control Sequences" (see Note). For example, if there is a call for cooling reset, it will control to that supply air setpoint, typically 55°F. If there is a call for heating, it will control to that supply air setpoint, typically 85°F. If there is neither a call for heating or cooling, it will control to the neutral air setpoint, typically 70°F. (continued next page) ATH74-525.2 15 CONTROLS SYSTEM MANUAL Sequence of Operation (continued) Notes: 1. The HGRH control can be configured to control to a single supply air setpoint that is different than the Neutral Air, Cooling Reset, or Heating Reset setpoints. It is called the HGRH setpoint and can be set in the Service Settings CS16 screen. The range of adjustability on that setpoint is 50.0°F to 90.0°F and would be maintained in dehum mode, even if there is a call for cooling or heating reset. This control is not normally used. 2. In some cases, especially low load conditions, HGRH capacity may be reduced and the supply air temperature may fall short of the active setpoint. This is usually a transient issue that is resolved once the load increases. In select cases, if equipped with a natural gas heating option, space pAD enabled gas heating can be used as an auxiliary reheat source to prevent overcooling of the space. The use of this setting must be reviewed by the Service Department. C. Condenser Fan (Head Pressure) Control: The liquid line pressure transducer for each circuit is monitored by the unit controller. All condenser fans are modulated together to control the air volume passing through the condenser coil to maintain head pressure, or liquid line pressure for each circuit. The default liquid line setpoint is 310.0 PSI. 8. Energy Recovery Sequences If the unit is equipped with optional Energy Recovery (ERV), the ERV is active in the occupied mode. The unit controller manages sequencing of the exhaust fan, energy recovery wheel, economizer wheel bypass damper (if applicable), and entering air pre-heater, if equipped. The control sequence for the ERV is as follows: Exhaust Fan: The exhaust fan control sequence is described above in the "Exhaust Fan Sequences" section. Energy Recover Wheel: The energy recovery wheel is active when required based on the current operating mode: A. Cooling Mode: Return air (RA) and outdoor air (OA) enthalpy sensors are actively monitored and will control as follows: 1. If the OA enthalpy is 3.0 BTU/lb. (adjustable from 2.0 to 10.0 BTU/lb.) or more higher than the RA enthalpy, the wheel operates to pre-condition the outside air before it reaches the DX coil. 2. If the OA enthalpy is less than 2.0 BTU/lb. (adjustable from 0.0 to 2.0 BTU/lb.) higher than the RA enthalpy, the wheel is stopped, as energy recovery is minimal or may actually add load to the mechanical cooling system. The economizer bypass damper is opened as described below. B. Dehumidification Mode: Return air (RA) and outdoor air (OA) enthalpy sensors are actively monitored and will control as follows: 1. If the OA humidity ratio is 10Gr/lb. or more higher than the RA humidity ratio, the wheel operates to pre-condition the outside air before it reaches the DX coil. 2. If the OA humidity ratio is less than 10Gr/lb. higher than the RA humidity ratio, the wheel is stopped, as energy recovery is minimal or may actually add load to the mechanical cooling system. The economizer bypass damper is opened as described below. C. Heating Mode: Return air (RA) and outdoor air (OA) dry bulb temperature sensors are actively monitored and will control as follows: 1. If the RA temperature is higher than the OA temperature, the wheel operates to pre-condition the air before it reaches the heating system. 2. If the RA temperature is below the OA temperature, the wheel is stopped, as energy recovery is minimal or may actually add load to the heating system. The economizer bypass damper is opened as described below. Energy Wheel Economizer Bypass Damper (units with 74" wheels and smaller): The energy recovery module includes an economizer bypass damper that opens when the energy recovery wheel is not being used. Opening the bypass reduces airside pressure drop and resulting fan power. The controller monitors outside air, return air, and energy recovery wheel supply air conditions. If the use of the wheel is adding load to the mechanical cooling or heating system (mode dependent), the wheel is stopped and the bypass damper is opened. The supply fan VFD speed is reduced by 10% (adjustable) to prevent the supply air volume from increasing due to the drop in static pressure when the air is bypassed around the wheel. Economizer Bypass Jog Mode: The module shall include energy recovery wheel start-stop-jog control to periodically rotate the wheel position during economizer mode to avoid wheel contamination from the airstream. When the wheel is stopped in this mode, the wheel is run for 5 seconds every 20 minutes to prevent a buildup of dirt or dust on the face of the wheel. (continued next page) 16 ATH74-525.2 CONTROLS SYSTEM MANUAL Sequence of Operation (continued) Wheel Defrost: If the temperature of the wheel falls below the dew point of the exhaust air stream, condensation can form on the wheel and form frost that significantly degrades performance. There are two methods used for frost control: A. Wheel Start/Stop: The standard sequence on all energy recovery wheel equipped units that do not have the optional electric preheat option is a wheel start/stop sequence. If the outside ambient temperature is above 20°F, the wheel defrost sequence is not active. If the outside ambient temperature is below 20°F, the following is the defrost sequence: 1. Run energy wheel for 30 minutes. 2. Stop energy wheel for 60 seconds to allow the exhaust air to defrost one half of the wheel. 3. Run energy wheel for 6 seconds to rotate the wheel ½ turn. 4. Stop energy wheel for 60 seconds to all the exhaust air to defrost the other half of the wheel. 5. Check the outside air temperature. If the temperature is still below the 20°F, the control will repeat sequence until the outside temperature rises above 22°F. B. Entering Air Preheater: The energy recovery wheel entering air preheater is used to avoid frost build up on the energy recovery wheel during low ambient temperatures. The preheater is a single stage, on-off control based on a dynamically calculated frost threshold temperature. The controller monitors outside ambient temperature, return air temperature, and return air humidity and dynamically calculates the frost threshold temperature, which is the line tangent to the psychrometric saturation curve that passes through the actual indoor temperature/humidity condition. The preheater is then turned on to maintain an incoming airflow temperature that is above the frost threshold temperature. A 5.0°F band is used for enabling and disabling of the output. Exhaust Air Damper: The exhaust air damper is not motorized and therefore is not managed by the unit controller. This damper opens when there is sufficient differential pressure across it from the exhaust fan operation. 9. Dual Power Sequence All units as standard have a single set of 3-phase power terminals to which the power feed conductors are landed from a single power source. The Dual Power option is for applications where the unit may be required to run in a low power mode from a stand-by power source, such as a backup generator. With this option, the unit has two sets of 3-phase power terminals to which the power feed conductors are landed. The unit electrical systems are separated into two separate circuits as follows: Circuit 1: Compressors, Condenser Fan Motors, Primary or Aux Electric Heat Circuit 2: Unit Controls, Supply Fan Motor(s), Dampers, Gas Heating, Exhaust Fan Motor, Energy Recovery Wheel Motor NOTE: Items in italics apply only if selected. The mode of operation is dependent on the state of digital inputs as shown in the following table. Dual Power Mode Digital Input 12 (Dual Power) Digital Input 16 (Phase Fail Relay 1) Normal (Main Utility Feed) Open Closed Low Power (Stand-By Power Feed) Closed Open or Closed Open or Closed Closed The changeover of power source control, switching, and circuit protection is by others and external to the HVAC unit. The changeover must be communicated to the Carel controller on the unit by the customer via closure at Digital Input DI12 and/or by the unit Phase Failure Relay 1 opening at DI16. If Dl12 is open (normal operation) but DI16 is open (power failure on Circuit 1), the unit will go into the Stand-By Power mode. If a stand-by power source is not active, the unit will be shutdown from lack of power on Circuit 2. The sequence of operation is as follows: A. Normal Power Mode: Both Circuits 1 and 2 are fed from the utility feed and all systems operate normally. B. Stand-By Power Mode: The utility feed is removed from Circuits 1 and 2 and the stand-by power feed is applied to Circuit 2 only. In this low power mode of operation, the unit can be configured to run in one of the following modes (configurable in the Service Settings): 1. Minimum Output: Any on/off components are on, any modulating components (ex: dampers) are at minimum. 2. Maximum Output: Any on/off components are on, any modulating components (ex: dampers) are at maximum. 3. Auto Output: Any on/off components are on, any modulating components (ex: dampers) are based on one of the following settings (configurable in the Service Settings): i. Lock: The modulated component is locked at the output based on the demand when the unit went into the Stand-By Power mode. ii. Auto: The modulated component modulates based on ongoing demand. ATH74-525.2 17 CONTROLS SYSTEM MANUAL pCO5+ Large Controller Layout 10 11 12 13 14 15 C9 NO9 NO10 NO11 C9 NO12 C12 NC12 NO13 C13 NC13 NC8 C8 NO8 C7 NO7 C7 C1 NO1 NO2 NO3 C1 C4 NO4 NO5 NO6 C4 J11 pLAN J10 J1 J24 Fie ld Bus card J2 J3 J12 J13 J14 J15 NC14 C14 NO14 43 2 1 J25BMS2 J26FBus2 J21 NO15 C15 NC15 J16 J17 J18 C16 NO16 NO17 NO18 C16 J22 J23 FBus2 16 17 18 15 9 15 7 19 3 8 BMS card J4 J5 J19 J7 J6 J20 J8 VG VG0 Y1 Y2 Y3 Y4 ID1 ID2 ID3 ID4 ID5 ID6 ID7 ID8 IDC1 U6 U7 U8 GND ID9 ID10 ID11 ID12 IDC9 ID13H ID13 IDC13 ID14 ID14H ID15H ID15 IDC15 ID16 ID16H Y5 Y6 U9 GND U10 GND ID17 ID18 IDC17 G G0 +Vterm GND +5 VREF U1 U2 U3 GND +VDC U4 GND U5 GND 1 2 34 3 56 7 8 3 8 9 1. Power supply connector [G (+), G0 (-)] 2. +Vterm: Power to additional terminal +5 Vref: Power to ratiometric probes 3. Universal inputs/outputs 4. +VDC: Power to active probes 5. Button for setting pLAN address, secondary display, LEDs 6. VG: Voltage to optically-isolated analog output VG0: Power to optically-isolated analog output, 0 Vac/Vdc 7. Analog outputs 8. Digital inputs 9. Digital inputs 10. pLAN telephone connector for terminal/downloading application program 11. pLAN plug-in connector 12. Reserved 13. Reserved 14. Reserved 15. Relay digital outputs 16. BMS2 connector 17. Fieldbus2 connector 18. Fieldbus/BMS selector microswitch 19. Fieldbus2 connector pCOe Expansion Board Layout 8 J5 J6 J7 J8 7 J9 J10 expansion board NO1 B1 C1 B2 NC1 GND NO2 +5V Ref C2 +Vdc NC2 NO3 B3 C3 B4 NC3 GND NO4 +5V Ref C4 +Vdc NC4 1. Power supply connector [G (+), G0 (-)] 2. Analog outputs 3. Network connector for expansions in RS485 (GND, T+, T-) 4. 24Vac/Vdc digital inputs 5. Yellow power on LED and 3 signalling LEDs 6. Serial address 7. Analog inputs and probe supply 8. Relay digital outputs 4 J4 ID1 ID2 ID3 ID4 IDC1 Serial Address 1234 6 J1 24Vac J2 J3 tLAN GND T+ T- Y1 VG0 VG G0 G 1 253 18 ATH74-525.2 CONTROLS SYSTEM MANUAL pCO5+ Large Controller Input/Output (I/O) List I/O Type Universal Digital Input pCO5+ Large I/O # Type/Voltage U1 4-20mA U2 PT1000 U3 4-20mA U4 PT1000 U5 PT1000 U6 NTC HT U7 4-20mA U8 0-10vDC U9 PT1000 U10 PT1000 DI1 24vAC DI2 24vAC DI3 24vAC DI4 24vAC DI5 24vAC DI6 24vAC DI7 24vAC DI8 24vAC DI9 24vAC DI10 24vAC DI11 24vAC Description Return Air Humidity Evaporator Air Off Temp (D-Cabinet only) Building Pressure Outdoor Air Temp OR ERV Off Wheel Temp Return Air Temp Discharge Line Temp (CCT1 on D-Cabinet) Outdoor Air Humidity OR ERV Off Wheel Humidity BPP Gas Furnace Stage 1 Status Mixed Air Temp Supply Air Temp HP Switch (CCT1 on D-Cabinet) LP Switch (CCT1 on D-Cabinet) Supply Air Flow Switch Smoke Detector Dirty Filter Switch Damper End Switch Occupied Supply Fan VFD Status Condensate Float Switch UT Gas Valve 1 Status UT Gas Valve 2 Status DI12 24vAC Dual Power DI13 24vAC Door Switch DI14 24vAC Remote Unit Initiation DI15 24vAC Damper Position DI1 OR Supply Fan Speed DI1 DI16 24vAC Phase Fail Relay 1 DI17 24vAC Exhaust Air Flow Switch (Not used on D-Cabinet) DI18 24vAC Condenser Fan VFD Status (CCT1 on D-Cabinet) AO1 0 - 10vDC Dampers AO2 0 - 10vDC Condenser Fans (CCT on D-Cabinet) Analog Input AO3 AO4 0 - 10vDC 0 - 10vDC Aux. Electric Heat Furnace 1 Signal OR Main Electric Heat OR Hot Water Heat AO5 0 - 10vDC Supply Fan AO6 0 - 10vDC Exhaust Fan DO1 NO Relay Gas Boost Heat DO2 - Furnace 2 Stage 2 OR Furnace 3 Enable DO3 NO Relay Compressor 1 DO4 NO Relay Compressor 2 DO5 NO Relay Outdoor Air Damper DO6 NO Relay HGRH Close Off Valve (CCT1 on D-Cabinet) DO7 NO Relay Condenser Fan VFD Enable (CCT1 on D-Cabinet) DO8 NO Relay Supply Fan VFD Enable Digital Output DO9 DO10 NO Relay Heat 1 OR Furnace 1 Ignit. Initiation OR Main Electric Heat Enable NO Relay Heat 2 OR Furnace 2 Stage 1 OR Furnace 2 Enable DO11 NO Relay HGRH Stage 2 Valve (Not used on D-Cabinet) DO12 - Not Used DO13 NO Relay Exhaust Fan Enable DO14 NO Relay CP1 Unloader Valve DO15 NO Relay General Alarm DO16 NO Relay Aux. Electric Heat Enable DO17 NO Relay Furnace 4 Enable (D-Cabinet only) DO18 - Not Used For the pCOe Expansion Board I/O List, please see next page. ATH74-525.2 Notes OA/RA units, units with ERV D-Cabinet only with dehum Only if control selected Includes humidity probe OA/RA units, units with ERV All units Includes humidity probe Gas Heat Units Only OA/RA Units Only All units Open = High Pressure Open = Low Pressure Open = Improper Airflow Open = Smoke Alarm Closed = High Pressure Closed = Running Closed = Occupied Open = VFD Fault Open = High Condensate Closed = Gas Valve On Closed = Gas Valve On Open = Normal Power, Closed = Auxillary Power Open = Open Door Open = OFF, Closed = ON Only if control selected Only if control selected Closed = Running Open = VFD Fault OA/RA Units Only Units with heat option Only on units with exhaust Unit 24vac Units with heat option Unit 24vac Unit 24vac Unit 24vac (100% OA Only) Unit 24vac VFD isolated 24vac VFD isolated 24vac Units with heat option Units with heat option Unit 24vac - Units with exhaust Units with aux heat option Units with heat option - Standard or Optional O S O S O S S O O S S S S O O S O O S O O O S S O O O S O S O O S O O O S S S O S S O O O O S S O O - 19 CONTROLS SYSTEM MANUAL pCOe Expansion Board Input/Output (I/O) List (used with certain control options and all D-Cabinet units) I/O Type Universal Input Digital Input Analog Output Digital Output pCOe I/O # Type/Voltage B1 4-20mA B2 4-20mA B3 - B4 - DI1 24vAC DI2 24vAC DI3 24vAC DI4 24vAC AO1 DO1 NO DO2 NO DO3 NO DO4 NO Description CO2 Content Duct Pressure Not Used Not Used Damper Position DI2 OR Supply Fan Speed DI2 OR HW Coil Freeze Stat Condenser Fan VFD Status CCT2 (D-Cabinet only) HP Switch CCT2 (D-Cabinet only) LP Switch CCT2 (D-Cabinet only) Condenser Fans CCT2 (D-Cabinet only) Condenser Fan VFD Enable CCT2 (D-Cabinet only) Compressor 3 (D-Cabinet only) Compressor 4 (D-Cabinet only) HGRH Close Off Valve CCT2 (D-Cabinet only) Notes Standard or Optional Only if control selected O Only if control selected O - - - - Only if control selected O Open = VFD Fault S Open = High Pressure S Open = Low Pressure S S D-Cabinet only S D-Cabinet only S D-Cabinet only S D-Cabinet only O pCOxs Controller Input/Output (I/O) List (used on units with Energy Recovery option) I/O Type Heartbeat Universal Digital Input Analog Output pCOxs I/O # Type/Voltage SYNC - B1 4-20mA B2 4-20mA B3 - B4 - DI1 24vAC DI2 24vAC DI3 24vAC DI4 24vAC DI5 24vAC DI6 24vAC AO1 0 - 10vDC AO2 0 - 10vDC AO3 - Description Wheel Proximity Outdoor Air Humidity Outdoor Air Temperature Not Used Not Used Exhaust Air Filter Switch Wheel Pressure Switch Outdoor Air Filter Switch Exhaust Air Flow Switch (or VFD status on D-Cabinet) ERV Door Switch Wheel VFD Status (D-Cabinet only) Wheel Speed (D-Cabinet only) Exhaust Fan Not Used DO1 NO Relay Outdoor Air Bypass Damper Digital Output DO2 DO3 DO4 DO5 NO Relay NO Relay NO Relay NO Relay Wheel Enable (or Wheel VFD Enable for D-Cabinet) Electric Preheat Enable (or Preheat Stage 1 on D-Cabinet) Exhaust Fan Enable Electric Preheat Stage 2 (D-Cabinet only) Notes Standard or Optional Only if option selected O All units S All units S - - - - Only if option selected O Only if option selected O Only if option selected O All units S All units S Only if option selected O Only if option selected O All units S - - All units except with 81" wheel S All units S Only if option selected O All units S Only if option selected O 20 ATH74-525.2 CONTROLS SYSTEM MANUAL Display/Keypad Functions The controller features a built-in user interface with LCD display and keypad. Additionally, all functions of the display/keypad can be replicated using the remote user interface module, pGD1 or pGDE. B- and C-Cabinet units are available with an optional unit mounted remote user interface data port to allow access without opening the control cabinet or disconnecting unit supply power. D-Cabinet sized units feature a dedicated low voltage control compartment that allows access while the unit is powered. Optional Remote User Interface Data Port Carel pCO5+ Large Display and Keypad Remote User Interface Module Refer to the literature included with the pGD1 for installation instructions. Refer to the Board Settings section for instructions on programming the remote display keypad to the controller. Standard Keypad Button Functions pCO5+ Built-In Keypad pGD1 Remote User Interface Module Function ALARM Button Function Illuminated when there is an active alarm, pressing once will allow viewing of active alarms, pressing twice will reset active manual-reset alarms. PRG Selects the main navigation menu screen. ESC Returns to the main unit status display screen. UP Scroll through display screens, settings, or increase the setpoint value. ENTER Confirm point adjustments or move the cursor to the next available set point. DOWN Scroll through display screens, settings, or decrease the setpoint value. Extra Function Keypad Button Sequences pCO5+ Built-In Keypad pGD1 Remote User Interface Module Function Button Function ++ ++ UP + DOWN+ ENTER Accesses controller address. + + ENTER + UP Change unit displayed on remote keypad. (ERV Only) If using the pGDE remote user interface module, the keypad keys match the pCO5+ built-in keypad. ATH74-525.2 21 CONTROLS SYSTEM MANUAL Menu Navigation The Main Status Screen is displayed when the unit is first turned on or after one minute of keypad inactivity. From this Main Status Screen, eight sub menus can be accessed. Details on the Main Status Screen and each sub menu shown below will be detailed in the following sections of this manual. Sub Menu Selections Sub Menu A. On/Off Unit B. Setpoints C. Clock/Scheduler D. Input/Output E. Alarm Logger F. Board Switch G. Service H. Manufacturer Description Switch unit on or off. View the user setpoints. View the current time and date and occupancy schedule. View the status of the controller inputs and outputs. View the alarm log. Change the controller pLAN board address. View maintenance related parameters, such as hours run, sensor calibration and manual overrides. Manufacturer menu and adjustment of various manufacturer related parameters, such as unit configuration and timing settings. Example Sub Menu Navigation The following example shows how to navigate to and enter the Clock/Scheduler sub menu, however the process is similar for all sub menu selections. 1. Starting from the Main Status Screen: 4. Press the ENTER key to enter the sub menu. 2. Press the PRG key to access the sub menu. Note that the sub menu starts with On/Off Unit highlighted. 3. Press the UP or DOWN key repeatedly until the Clock/Scheduler sub menu is selected. 5. Once within the sub menu, if the blinking cursor is located in top line of the screen, pressing the UP or DOWN keys will scroll through available Clock/Scheduler sub menus. 6. If the user wants to change a parameter on the displayed sub menu, pressing the ENTER key will move the cursor to the parameter settings and successive presses of ENTER will move the cursor to the next item. To change any item, the UP or DOWN arrow keys can be used to make the changes. Note that some selections are read only and cannot be changed. 7. To revert back to the previous sub menu level, press the ESC key. 22 ATH74-525.2 CONTROLS SYSTEM MANUAL Password Protection WAWRANRINNGING Improper control adjustments and manual mode control can cause property damage, injury or death. Read the installation, operating and maintenance instructions thoroughly before making adjustments. To prevent unauthorized adjustments, a password is required to gain access to certain menus. When a password is required, the following screen will be displayed: The password can be entered by using the UP or DOWN key to scroll through the values for each digit, then pressing ENTER to move the cursor to the next digit. Repeat this process until all four digits of the password are entered. The password for appropriate Service sub menu selections is 1500. The password for the Manufacturer sub menu is a custom, one-time password that is only available by contacting the Service Department. ATH74-525.2 23 CONTROLS SYSTEM MANUAL Menu Tree Regardless of the current screen displayed, pressing the PRG key main sub menu listing, indicated on page 8 and as shown below. The sub menu screens shown are condensed on this page and are detailed further in this manual. Depending on the configuration of the unit, not all sub menu screens are available. MAIN SCREEN MAIN SUB MENU SUB MENU SCREENS SCREEN # Unit Status A. On/Off Unit On/Off Unit - B. Setpoints Outdoor Air Reset Space Supply Air Resets Neutral Air Occupied Setpoints Unoccupied Setpoints Occupied Unoccupied DeHum Dewpt Setpoints S1-4 S5-6 S7 S8-11 S12-14 S15 S16 S17-18 C. Clock/ Scheduler Clock Scheduler Holidays L1-2 L3-4 L5-9 D. Input/Output Analog Inputs Digital Inputs Relay Outputs Analog Output Relay Output (pCOe) Analog Output (pCOe) Digital Input (pCOe) Analog Input (pCOe) R1-13 T1-20 V1-15 W1-6 B1-4 B5 B6-9 B10 E. Alarm Logger Alarm Log - F. Board Switch G. Service Shaded Area Requires Password for Access - a. Information A1-7 b. Running Hours X1-19 c. Power Meter PM1-8 d. BMS Config. U1-8 e. Fieldbus Config. FB1-11 f. Service Settings / a. Maintenance Hours M1-18 f. Service Settings / b. Probe Adjustment P1-18 f. Service Settings / c. Control Settings CS1-20 f. Service Settings / d. P/PI/PID Loops D1-20 f. Service Settings / e. Alarm Management AM1-24 g. Manual Management / a. Manual Control MN1-6 g. Manual Management / b. Analog Inputs C1-13 g. Manual Management / c. Digital Inputs D1-20 g. Manual Management / d. Relay Outputs G1-17 g. Manual Management / e. Analog Outputs H1-6 g. Manual Management / f. Exp. Board (pCOe) F1-9 i. pAD Config. PC1-4 j. ERV Config. E1-10 H. Manufacturer Contact Service Department for Guidance Menu tree listing is condensed and may show selections that are not available on all units. 24 ATH74-525.2 CONTROLS SYSTEM MANUAL Main Status Screen The Main Status Screen is displayed when the unit is first turned on or after one minute of keypad inactivity. The following information is displayed on the Main Status Screen: · Time/date · Unit number · Supply Air Temperature · Current Supply Air Setpoint · Unit Status · Unit Mode Once this screen is displayed, the user can navigate up and down through the list of Main Status Screen Parameters by using the UP or DOWN buttons. These screens are described in further detail in the next section. Note that the main unit controller will always show as Unit: 01. If the unit is also equipped with an ERV module, it has its own controller, which is Unit: 02. The keypad at the main controller or the remote key pad can be used to change the Main Status Screen to display either Unit 01 or 02. To change the controller being displayed, press the ENTER + UP buttons. If you are viewing the main controller display, pressing those buttons will switch to displaying the ERV controller. Pressing those buttons again will revert back to displaying the main controller. Main Status Screen Parameters The following table describes the menu parameters: SCREEN NAME SCREEN # PARAMETER DESCRIPTION Time/Date: SA: Supply Set: FACTORY VALUE Actual Value Actual Value Actual Value Main Screen Status: (Off/On) - (Mode) Actual Value Actual Value pAD Thermostat (Visible only if pAD is Enabled) (continued next page) (Occupancy) Actual Value pAD Thermostat: (Address) Temperature: M1 pAD Humidity: (If Available on pAD) Dew Point: Enthalpy: Actual Value Actual Value Actual Value Actual Value Actual Value RANGE Hr:Min MM/DD/YY - - WAITING UNIT ON OFF by ALARM OFF by pLAN OFF by BMS OFF by CLOCK OFF by DIG-IN OFF-KEYPAD OFF-OPEN DOOR WAIT SUP FAN WAIT-DAMPER Fan-Only Econ Heating Cooling Dehumid UNOCCUPIED OCCUPIED-BMS OCCUPIED-CLK OCCUPIED-DIG OCCUPIED-PAD OCCUPIED - - - - - UNITS °F °F - - - °F %rH °F BTU/Lb. ATH74-525.2 25 CONTROLS SYSTEM MANUAL Main Status Screen Parameters (continued) SCREEN NAME SCREEN # PARAMETER DESCRIPTION Location: Serial Probe (Probes 1 - 4 if enabled) Temperature: M2 - M5 Humidity: Dew Point: Serial Probe Number: Conrol Temp/Hum (Visible only if Serial Probes are enabled) Temperature: Humidity: M6 Dew Point: Enthalpy: Temperature: Status of Outside Air Humidity: M7 & M8 Dew Point: Enthalpy: Status of Return Air (Visible only with HOAS Units) Temperature: Humidity: M9 Dew Point: Enthalpy: Status of ERV leaving Air (Visible only with ERV Units) M10 Temperature: Humidity: Dew Point: Enthalpy: Mixed Air (Visible only with HOAS Units) Temperature: Humidity: M11 Dew Point: Enthalpy: Evaporator Off Temp Status of Space CO2 (Visible only with CO2 Sensor) Status of Building Pressure (Visible only with building pressure sensor) Status of Duct Pressure (Visible only with duct pressure sensor) M12 Temperature: CO2 level: M13 CO2 setpoint: Pressure: M16 Setpoint: Pressure: M17 Setpoint Main Dampers OA Damper Pos: M18 RA Damper Pos: (if enabled) Supply: (On/Off) Fan Status Exhaust: (On/Off) M19 Cond Fan Circuit 1: (On/Off) Cond Fan Circuit 2: (On/Off) ERV Wheel: Status of ERV (Visible only with ERV Units) Wheel Status: M20 Bypass Damper: Preheater On/Off: (if enabled) FACTORY VALUE Actual Value Actual Value Actual Value Actual Value Actual Value Actual Value Actual Value Actual Value Actual Value Actual Value Actual Value Actual Value Actual Value Actual Value Actual Value Actual Value Actual Value Actual Value Actual Value Actual Value Actual Value Actual Value Actual Value Actual Value Actual Value Actual Value Actual Value Actual Value Actual Value Actual Value Actual Value Actual Value Actual Value Actual Value Actual Value Actual Value Actual Value Actual Value Actual Value Actual Value Actual Value Actual Value RANGE - - - - OPEN or CLOSED 0 - 100 0 - 100 0 - 100 0 - 100 0 - 100 0 - 100 OFF or ON STOPPED RUNNING CLOSED or OPEN OFF or ON UNITS °F %rH °F °F %rH °F BTU/Lb. °F %rH °F BTU/Lb. °F %rH °F BTU/Lb. °F %rH °F BTU/Lb. °F %rH °F BTU/Lb. °F ppm ppm iwc iwc iwc iwc - % % % % % - - - (continued next page) 26 ATH74-525.2 CONTROLS SYSTEM MANUAL Main Status Screen Parameters (continued) SCREEN NAME SCREEN # PARAMETER DESCRIPTION Cooling Demand: Demand Status Heating Demand: M21 Dehum Demand: (if enabled) Hot Gas Reheat: (if enabled) Aux. Electric Heat Status Primary Electric Heat Status M22 Modulation: M23 Modulation: Gas Stages On: (United Tech. Board) Gas Heat Status Gas Stage 1 Status: (Beckett Control Board) M24 Gas Stage 2 Status: (Beckett Control Board) Digital Scroll Status Status M25 Countdown Maxpower Admit Requested Cap.: Current Capac.: SH: (Super Heat) Suction Temperature EEV Position percent DX Circuit 1 (Graphical Display) EVD: (EVD Status) M26/27 Digital Compressor Status (On/ Off) Unloader Valve status Compressor 2 Status (On/Off) Protection Status SP: (Suction Pressure) FACTORY VALUE Actual Value Actual Value Actual Value Actual Value Actual Value Actual Value Actual Value Actual Value Actual Value Actual Value Actual Value Actual Value Actual Value Actual Value Actual Value Actual Value Actual Value Actual Value (Graphic) (Graphic) (Graphic) Actual Value Actual Value RANGE 0 - 100 0 - 100 0 - 100 0 - 100 0 - 100 0 - 100 UNITS % % % % % % 0 - 2 - Primary Limit Failure Loss of inducer Motor No Firing Rate Input Gas Sensor Failure Air Sensor Failure Low Combustion Air Mod Valve Failure Weak Flame Signal Limiting Low Fire Failed Ignition Improper Flame Lost Flame COM Error Running Retry OFF Off On Start Up Forced Off Alarm Off by time On by time - 0 - 100 0.0 - 100.0 0.0 - 100.0 - - 0 - 100 __ On Close Std-by Pos Wait Init - - - - (s)econds % % % °F °F % - - - - LoSH LOP - MOP - psig (continued next page) ATH74-525.2 27 CONTROLS SYSTEM MANUAL Main Status Screen Parameters (continued) SCREEN NAME SCREEN # PARAMETER DESCRIPTION SH: (Super Heat) Suction Temperature EEV Position percent FACTORY VALUE Actual Value Actual Value Actual Value DX Circuit 2 (Graphical Display) DX Circuit 1 DX Circuit 2 DX Circuit 1 DX Circuit 2 Lockouts Scheduler Manual I/O Status EVD: (EVD Status) M28 Compressor 3 Status (On/Off) Compressor 4 Status (On/Off) Protection Status SP: (Suction Pressure) Discharge Pressure: M29 Discharge Temperature: Suction Pressure: Discharge Pressure: M30 Suction Pressure: LL Temp.: M31 LL Cond Temp.: Subcool: LL Temp.: M32 LL Cond Temp.: Subcool: DX System Lockout: Circuit 1: Circuit 2: M33 Heating Lockout: Temperature Lockouts: Clock Override: M34 Override Time: Unit Operating Mode: M35 Reset unit to auto mode: Actual Value (Graphic) (Graphic) Actual Value Actual Value Actual Value Actual Value Actual Value Actual Value Actual Value Actual Value Actual Value Actual Value Actual Value Actual Value Actual Value Actual Value Actual Value Actual Value Actual Value Actual Value Actual Value Actual Value Actual Value NO RANGE - 0 - 100 __ On Close Std-by Pos Wait Init LoSH LOP MOP - OFF or ON OFF or ON OFF or ON OFF or ON None DX Cooling Heating OFF or ON 1 - 3 Auto or Manual NO or YES UNITS °F °F % - - - psig psig °F psig psig psig °F °F °F °F °F °F - - (hr)hours - 28 ATH74-525.2 CONTROLS SYSTEM MANUAL A. On/Off Unit Sub Menu Parameters The On/Off Unit menu allows the user to view the detailed On/Off status of the controller. SCREEN NAME SCREEN # PARAMETER DESCRIPTION Unit Address: FACTORY VALUE Actual Value Power by Display: OFF On/Off Unit Status: OFF by KEYPAD On/Off Unit (Visible only if pAD enabled) pAD n° On/Off 1 ALWAYS ON RANGE 1 - 32 OFF ON WAITING UNIT ON OFF by ALARM OFF by pLAN OFF by BMS OFF by CLOCK OFF by DIG-IN OFF-KEYPAD OFF-OPEN DOOR WAIT SUP FAN WAIT-DAMPER 1 - 32 ALWAYS ON pLAN ON/OFF UNITS - - - ATH74-525.2 29 CONTROLS SYSTEM MANUAL B. Setpoints Sub Menu Parameters The Setpoint menu allows the user to view and adjust temperature related parameters. SCREEN NAME SCREEN # PARAMETER DESCRIPTION OA (Top Left Value) NA High (Top Right Value) OA (Bottom Left Value) Outdoor Air Reset Heating S1 NA Low (Bottom Right Value) (Same as Cooling NA High) NA Granularity: (Rate at which change occurs) OA (Top Left Value) NA High (Top Right Value) (Same as Heating NA Low) Outdoor Air Reset Cooling S2 OA (Bottom Left Value) NA Low (Bottom Right Value) SA/NA Granularity: (Rate at which change occurs) FACTORY VALUE 30.0 78.0 68.0 70.0 0.5 72.0 70.0 85.0 55.0 0.5 Outdoor Air Reset Heating Setpoints (Graphical Display of S3 S1 Outdoor Air Reset Setpoints, if configured) Actual Value Outdoor Air Reset Cooling Setpoints (Graphical Display of S4 S2 Outdoor Air Reset Setpoints, if configured) Space Supply Air Reset Cooling (Graphical Display of S5 Space Reset Setpoints, if configured) Space Supply Air Reset Heating (Graphical Display of S6 Space Reset Setpoints, if configured) Neutral Air (Reset type NONE) S7 Neutral Air: pAD Thermostat (Address) pAD Thermostat Occupied Cool Setpoint: Setpoints S8 (Screen Visble with pAD) Heat Offset: Heat Setpoint: Differentials Occupied Cool Diff:: S9 Heat Diff: Supply Air Reset Occupied Cooling Reset: Neutral Air: (Space Reset Only) S10 Heating Reset: (81% eff. Furnace) (90+%/hybrid eff. Furnace) (Electric Heat) (continued next page) Actual Value Reference Only (These correlate to the settings in S8 through S11 with actual values seen in screens S15 and S16) Reference Only (These correlate to the settings in S8 through S11 with actual values seen in screens S15 and S16) 70.0 Actual Value 74.0 4.0 Actual Value 1.0 1.0 55.0 70.0 80.0 30 ATH74-525.2 RANGE 0.0 - 50.0 60.0 - 100.0 50.0 - 75.0 60.0 - 80.0 0.5 or 1.0 65.0 - 75.0 60.0 - 80.0 75.0 - 100.0 50.0 - 80.0 0.5 or 1.0 - - - - 50.0 - 90.0 1 - 32 60 - 90 2 - 20 Actual Value 1.0 - 10.0 1.0 - 10.0 45.0 - 100.0 50.0 - 90.0 60.0 - 130.0 60.0 - 100.0 60.0 - 100.0 UNITS °F °F °F °F °F °F °F °F °F °F °F °F - - °F °F °F °F °F °F °F °F °F CONTROLS SYSTEM MANUAL B. Setpoints Sub Menu Parameters (continued) SCREEN NAME SCREEN # PARAMETER DESCRIPTION pAD Thermostat Occupied pAD Thermostat (Address) Setpoints S11 Space Humidity (Screen Visble with pAD) Humidity Offset pAD Thermostat (Address) pAD Thermostat Unoccupied Setpoints Cool Setpoint: S12 Heat Setpoint: Space Humidity: Humidity Diff: Supply Air Reset Unoccupied Differentials Unoccupied Cooling Reset: Heating Reset: S13 (81% eff. Furnace) (90+%/hybrid eff. Furnace) (Electric Heat) Cool Diff:: S14 Heat Diff: Occupied (Graphical Display of S15 S8-S11 Outdoor Air Reset Setpoints, if configured) FACTORY VALUE Actual Value 60 5 Actual Value 85.0 62.0 70 5 55.0 80.0 2.0 2.0 Actual Value RANGE 1 - 32 0 - 100 0 - 99 1 - 32 70.0 - 90.0 50.0 - 70.0 0 - 100 0 - 99 45.0 - 100.0 60.0 - 130.0 60.0 - 100.0 60.0 - 100.0 1.0 - 10.0 1.0 - 10.0 - UNITS - %rh %rh °F °F %rh %rh °F °F °F °F °F Unoccupied (Graphical Display of S16 Setpoints) Actual Value - °F Occupied OA Dewpoint: 55.0 45.0 - 65.0 °F DeHum Dewpt Setpoints (OA & Space Selected) Adjusted from pAD - (Screen Visible with Occupied Diff Off: 5.0 0.0 - 10.0 °F Dewpoint Dehumidification S17 Unoccupied Space Dewpoint: 60.0 45.0 - 65.0 °F and DOAS configuration) (Visible only with pAD) Unoccupied Diff Off: 5.0 0.0 - 10.0 °F (Visible only with pAD) Occupied MA Dewpoint: (MA & Space Selected) 55.0 45.0 - 65.0 °F Adjusted from pAD - DeHum Dewpt Setpoints Occupied Diff Off: 5.0 0.0 - 10.0 °F (Screen Visible with S18 Unoccupied Space Dewpoint: Dewpoint Dehumidification) (Visible only with pAD) 60.0 45.0 - 65.0 °F Unoccupied Diff Off: (Visible only with pAD) 5.0 0.0 - 10.0 °F ATH74-525.2 31 CONTROLS SYSTEM MANUAL PAGE INTENTIONALLY LEFT BLANK 32 ATH74-525.2 CONTROLS SYSTEM MANUAL C. Clock/Scheduler Sub Menu Parameters The Clock/Scheduler menu allows the user to view and alter the time and date. The user can also add up to seven schedules for occupancy requirements as well as up to sixteen holidays. SCREEN NAME Clock SCREEN # PARAMETER DESCRIPTION Day: L1 Date: Hour: (Military Time) DST: (daylight Savings Time) Transition Time: Start: (Date placement in month) Clock Start: (Day) Start: (Month) L2 Start: (Time) End: (Date placement in month) Scheduler Scheduler End: (Day) End: (Month) End: (Time) L3 Number of Schedules Schedule #: Time On: Time Off: L4 Days Enabled: Holidays Holidays (Screen will show only if Holidays = 4 or more) Holidays (Screen will show only if Holidays = 8 or more) Holidays (Screen will show only if Holidays = 12 or more) Holidays (Screen will show only if Holidays = 16) L5 Number: Holiday 1 Start - Stop Holiday 2 Start - Stop L6 Holiday 3 Start - Stop Holiday 4 Start - Stop Holiday 5 Start - Stop Holiday 6 Start - Stop L7 Holiday 7 Start - Stop Holiday 7 Start - Stop Holiday 8 Start - Stop Holiday 9 Start - Stop Holiday 10 Start - Stop L8 Holiday 11 Start - Stop Holiday 12 Start - Stop Holiday 13 Start - Stop Holiday 14 Start - Stop L9 Holiday 15 Start - Stop Holiday 16 Start - Stop FACTORY VALUE Actual Day Actual Date Actual Time ENABLE 60 SECOND SUNDAY March 2 FIRST SUNDAY NOVEMBER 2 0 0 00:00 00:00 * * * * * * * 0 00/00-00/00 00/00-00/00 00/00-00/00 00/00-00/00 00/00-00/00 00/00-00/00 00/00-00/01 00/00-00/00 00/00-00/00 00/00-00/00 00/00-00/00 00/00-00/00 00/00-00/00 00/00-00/00 00/00-00/00 00/00-00/00 00/00-00/00 RANGE UNITS SUNDAY - SATURDAY - MM/DD/YY - HH:MM - ENABLE or DISABLE - 0-60 LAST FIRST SECOND THIRD FOURTH SUNDAY - SATURDAY (min)utes - Day JANUARY - DECEMBER Month 0 - 23 LAST FIRST SECOND THIRD FOURTH SUNDAY - SATURDAY Hour - Day JANUARY - DECEMBER Month 0 - 23 Hour 0 - 7 - 1-7 - 00:00 - 23:59 Hrs:Min 00:00 - 23:59 M T W T F S S 0, 4, 8, 12, 16 Hrs:Min - 1/1-12/31 Days 1/1-12/31 Days 1/1-12/31 Days 1/1-12/31 Days 1/1-12/31 Days 1/1-12/31 Days 1/1-12/31 Days 1/1-12/31 Days 1/1-12/31 Days 1/1-12/31 Days 1/1-12/31 Days 1/1-12/31 Days 1/1-12/31 Days 1/1-12/31 Days 1/1-12/31 Days 1/1-12/31 Days 1/1-12/31 Days ATH74-525.2 33 CONTROLS SYSTEM MANUAL D. Input/Output Sub Menu Parameters The Input/Output menu allows the user to quickly view the status of the controller inputs and outputs. SCREEN NAME SCREEN # PARAMETER DESCRIPTION R1 Return Air Humidity R2 CO2 Sensor R3 Furnace Stage 2 Status R4 Evaporator Off Temp R5 Building Pressure a. Analog Inputs R6 Static Pressure (Screens are visible based R7 Outside Air Temp on unit configuration) R8 Return Air Temp R9 Discharge Line Temp R10 Outside Air Humidity R11 Furnace Stage 1 Status R12 Mixed Air Temp R13 Supply Air Temp T1 High Pressure SW CCT1 T2 Low Pressure SW CCT1 T3 S.F. Airflow Switch T4 Smoke Dectector T5 Dirty Filter Switch T6 Damper End Switch T7 Occupied T8 Supply Fan CFD Status b. Digital Inputs (Screens are visible based on unit configuration) T9 Condensate Pan Float T10 Gas Valve 1 T11 Gas Valve 2 T12 Dual Point Power T13 Door Switch T14 Remote On/Off T15 Damper Position 2 T16 Supply Fan Speed 2 T17 Damper Position 3 T18 Supply Fan Speed 3 T19 E.F. Airflow Switch T20 C.F. VFD Status CCT1 CHANNEL U01 U02 U02 U02 U03 U03 U04 U05 U06 U07 U08 U09 U10 DI1 DI2 DI3 DI4 DI5 DI6 DI7 DI8 DI9 DI10 DI11 DI12 DI13 DI14 DI15 DI15 DI16 DI16 DI17 DI18 RANGE - CLOSED or OPEN CLOSED or OPEN CLOSED or OPEN CLOSED or OPEN CLOSED or OPEN CLOSED or OPEN CLOSED or OPEN CLOSED or OPEN CLOSED or OPEN CLOSED or OPEN CLOSED or OPEN CLOSED or OPEN CLOSED or OPEN CLOSED or OPEN CLOSED or OPEN CLOSED or OPEN CLOSED or OPEN CLOSED or OPEN CLOSED or OPEN CLOSED or OPEN UNITS %rH ppm vdc °F iwc iwc °F °F °F %rH vdc °F °F - (continued next page) 34 ATH74-525.2 CONTROLS SYSTEM MANUAL D. Input/Output Sub Menu Parameters (continued) SCREEN NAME SCREEN # PARAMETER DESCRIPTION V1 Heat 3 V2 Gas Boost Heat V3 Heat 4 V4 Compressor 1 V5 Compressor 2 V6 OA Damper Open c. Relay Outputs V7 HGRH Solenoid CCT1 (Screens are visible based V8 Condenser Fans CCT1 on unit configuration) V9 Supply Fan V10 Heat 1 V11 Heat 2 V12 HGRH Stage 2 CCT1 V13 Exhaust Fan V14 General Alarm V15 Aux. Electric Heat W1 Damper Modulation d. Analog Output (Screens are visible based on unit configuration) W2 Condenser Fans CCT1 W3 Aux. Electric Heat W4 Modulated Heat W5 Supply Fan W6 Exhaust Fan B1 Condenser Fans CCT2 e. Exp Board Relay B2 Compressor 3 Output B3 Compressor 4 e. Exp Board Analog Output B4 HGRH Solenoid CCT2 B5 Condenser Fans CCT2 B6 Freeze Stat e. Exp Board Digital Input B7 C.F. VFD Status CCT2 B8 High Pressure SW CCT2 B9 Low Pressure SW CCT2 e. Exp Board Analog Input B10 CO2 Sensor CHANNEL 1 1 2 3 4 5 6 7 8 9 10 11 13 15 16 Y1 Y2 Y3 Y4 Y5 Y6 1 2 3 4 Y1 ID1 ID2 ID3 ID4 B1 RANGE OFF or ON OFF or ON OFF or ON OFF or ON OFF or ON OFF or ON OFF or ON OFF or ON OFF or ON OFF or ON OFF or ON OFF or ON OFF or ON OFF or ON OFF or ON 0.0 - 10.0 0.0 - 10.0 0.0 - 10.0 0.0 - 10.0 0.0 - 10.0 0.0 - 10.0 OFF or ON OFF or ON OFF or ON OFF or ON 0.0 - 10.0 OPEN or CLOSED OPEN or CLOSED OPEN or CLOSED OPEN or CLOSED - UNITS - vdc vdc vdc vdc vdc vdc - vdc ppm ATH74-525.2 35 CONTROLS SYSTEM MANUAL E. Alarm Logger Sub Menu Parameters The Alarm Logger menu allows the user to view up to 100 past alarms. To access the contents of the Alarm Logger, start by pressing the ALARM button, followed by the DOWN button. Displayed will be the most recent alarm, as shown in the following example: To get to the log, press the DOWN arrow key until the following screen is shown, then press the ENTER key: The most recent alarms will be displayed, as shown in the following example: SCREEN NAME Alarm Log SCREEN # PARAMETER DESCRIPTION Time Date CT: (Alarm Count) (Alarm Description) (If no alarm is stored in the log "NO ALARMS" will be displayed) - Supply Temp: Outside Temp: Outside Hum: Return Temp: Suction P.: Liquid Line P.: FACTORY VALUE Actual Value Actual Value Actual Value Actual Value Actual Value Actual Value Actual Value Actual Value RANGE HH:MM MM/DD/YY 0 - 100 See Below - UNITS - - - 36 ATH74-525.2 CONTROLS SYSTEM MANUAL E. Alarm Logger Sub Menu - Alarm Listing ALARM/LOGGED EVENTS Clock Alarm BMS Offline Beckett Control Board 1 Fail Beckett Control Board 2 Fail Building Pressure Sensor Failure CO2 Sensor Condensate Float Al (Al=Alarm) Condenser Fan Al CCT1 Condenser Fan Al CCT2 Condenser Fan CCT1 AR UD CD CAUSE Indicates an error with the real time clock · · on-board the controller. During alarm any schedules may not work properly. · BMS/BAS has lost communication with controller. · · Health Status Signal is less than 1.0 vdc. · · Health Status Signal is less than 1.0 vdc. · · Building Pressure Sensor faulty or not connected. · · CO2 Sensor faulty or not connected. · Unable to drain condensation after trap priming/ purge sequence. · · Circuit 1 VFD fault perserved. · Circuit 2 VFD fault perserved. ACTION Once the clock returns to functioning correctly the alarm will be automatically reset. The clock time may need to be reset. Unit will operate as is until communication can be reestablished. If shutdown unit on furnace alarm is selected, unit will shutdown if only 1 furnace is available. Otherwise unit will continue to run without heat. If shutdown unit on furnace alarm is selected, unit will shutdown if neither furnaces is available. Otherwise unit will continue to run without heat. Alarm is generated Building Pressure control is locked out. Alarm is generated Demand ventilation is locked out. This input has two strikes, if two trips occur within an hour an alarm will be generated and the compressor is locked out. If shutdown unit on cooling alarm is selected, unit will shutdown on single circuit units otherwise circuit 2 could continue to run. Cooling circuit 1 permanently disabled. Does not apply to units with EC condenser fans. If shutdown unit on cooling alarm is selected, unit will continue to run unless Circuit 1 critical alarm is also present. Cooling circuit 2 permanently disabled. Does not apply to units with EC condenser fans. · · Circuit 1 VFD fault detected. Cooling circuit 1 temporarily locked out. Condenser Fan CCT2 Cooling Diff Alarm (if enabled) Daily PW Active Disch. Temp Probe CCT1 Door Switch LO (LO=Lockout) Duct Static Pressure Envelope Code1 Al CCT1 Envelope Code1 Al CCT2 Envelope Code1 LO CCT1 Envelope Code1 LO CCT2 · · Circuit 2 VFD fault detected. Cooling circuit 2 temporarily locked out. · If there is a call for cooling and the supply air does not drop below the outside temperature. Alarm is generated No other action taken. Not an alarm, notification only that the Daily Password (obtained from Factory Service None. Department) is active. If shutdown unit on cooling alarm is selected, unit will shutdown on single circuit · · · Discharge Temperature Sensor for Circuit 1 disconnected or faulty. units otherwise circuit 2 could continue to run. If not shutdown unit on cooling alarm Circuit 1 critical alarm is set and unit will run with cooling/dehumidification permanently disabled. · · · Evaporator fan door open. Unit is disabled. ·· · · · · Pressure sensor disconnected or broken. During normal working mode compressor running outside safe operating conditions multiple times within the hour. During normal working mode compressor running outside safe operating conditions multiple times within the hour. During normal working mode compressor running outside safe operating conditions. During normal working mode compressor running outside safe operating conditions. If DSP Fail action is set to Min Speed fan will continue to operate at minimum. If DSP Fail is set to Unit Shutdown, unit will shutdown. Circuit permanently locked out. Circuit permanently locked out. Circuit temporarily locked out. Circuit temporarily locked out. AR = Auto Reset, UD = Unit Disabled, CD = Component Disabled (continued next page) ATH74-525.2 37 CONTROLS SYSTEM MANUAL E. Alarm Logger Sub Menu - Alarm Listing (continued) ALARM/LOGGED EVENTS Envelope Code2 Al CCT1 Envelope Code2 Al CCT2 Envelope Code2 LO CCT1 Envelope Code2 LO CCT2 Envelope Code3 Al CCT1 Envelope Code3 Al CCT2 Envelope Code3 LO CCT1 Envelope Code3 LO CCT2 ERV Comms Alarm ERV Door Open AR UD CD CAUSE ACTION Working in a conditional zone where the maximum · admitted power is 0% multiple times within the Circuit permanently locked out. hour. Working in a conditional zone where the maximum · admitted power is 0% multiple times within the Circuit permanently locked out. hour. · Working in a conditional zone where the maximum admitted power is 0%. Circuit temporarily locked out. · Working in a conditional zone where the maximum admitted power is 0%. Circuit temporarily locked out. · During startup procedure exceeded maximum startup zone limit within the hour. Circuit permanently locked out. · During startup procedure exceeded maximum startup zone limit within the hour. Circuit permanently locked out. · During startup procedure exceeded maximum startup zone limit. Circuit temporarily locked out. · During startup procedure exceeded maximum startup zone limit. Circuit temporarily locked out. · · · Communication between main controller and ERV controller disconnected or broken. ERV shutdown. · · · ERV exhaust fan door open. ERV/Exhaust fan shutdown. ERV OA Filters Dirty · ERV outside air filters are dirty . Alarm generated No further action taken. Evap Off Temp · Evap off temp sensor disconnected or broken. Alarm generated. EVD1 Config Error · · EVD parameter transmission error. Circuit permanently locked out. EVD1 EPROM Alarm · · EVD memory fault. Circuit permanently locked out. EVD1 Exv Motor "A" EVD1 Exv Motor "A" Al EVD1 Exv Motor "B" · · Electronic expansion valve disconnected or faulty. Circuit temporarily locked out. · Electronic expansion valve disconnected or faulty condition persists. Circuit permanently locked out. · · HGRH valve(s) disconnected or faulty. Circuit permanently locked out. EVD1 Firmware Error EVD1 Offline Al EVD1 Offline LO EVD2 Config Error · · EVD firmware not compatible with main controller. Circuit permanently locked out. · EVD expansion valve drive not communicating with main controller. Exceeded hourly limit. Circuit permanently locked out. · · EVD expansion valve drive not communicating with main controller. Circuit temporarily locked out. · · EVD parameter transmission error. Circuit permanently locked out. EVD2 EPROM Alarm · · EVD memory fault. Circuit permanently locked out. EVD2 Exv Motor "A" EVD2 Exv Motor "A" Al EVD2 Exv Motor "B" Al · · Electronic expansion valve disconnected or faulty. Circuit temporarily locked out. · Electronic expansion valve disconnected or faulty condition persists. Circuit permanently locked out. · HGRH valve(s) disconnected or faulty. Circuit permanently locked out. EVD2 Firmware Error EVD2 Offline Al EVD2 Offline LO Exhaust Fan Al Exhaust Fan SD Extended memory fault · · EVD firmware not compatible with main controller. Circuit permanently locked out. · EVD expansion valve drive not communicating with main controller. Exceeded hourly limit. Circuit permanently locked out. · · EVD expansion valve drive not communicating with main controller. Circuit temporarily locked out. · Airflow proving switch not indicating healthy status. Alarm is generated. · Airflow proving switch not indicating healthy status Exhaust Fan call ended to prevent any after extended period of time. further damage. · · Controller memory fault. Alarm is generated. AR = Auto Reset, UD = Unit Disabled, CD = Component Disabled 38 ATH74-525.2 (continued next page) CONTROLS SYSTEM MANUAL E. Alarm Logger Sub Menu - Alarm Listing (continued) ALARM/LOGGED EVENTS AR UD CD CAUSE Furnace Stage1 Signal (Beckett Control Board units only) · Health Status Signal not being received by the controller input or furnace board broken. Furnace Stage2 Signal (Beckett Control Board units only) · Health Status Signal not being received by the controller input or furnace board broken. Gas Valve 1 (United Technologies Control Board units only) Gas Valve 2 (United Technologies Control Board units only) H.W. Freeze Stat Heating Diff Alarm (if enabled) · The unit is calling for Gas heat but the main gas valve has not been energized. · The unit is calling for Gas heat but the main gas valve has not been energized. · · · Freeze condition indicated on HW coil. · If there is a call for heat and the supply air does not rise above the outside air temperature. High Disch. Temp Al Discharge temperature has exceeded upper · limit through the capacity reduction for 60s and exceeded the allowable number of trips per hour. High Disch. Temp CCT1 · · Discharge temperature has exceeded upper limit through the capacity reduction for 60s. ACTION If shutdown unit on furnace alarm is selected, unit will shutdown if only 1 furnace is available. Otherwise unit will continue to run without heat. If shutdown unit on furnace alarm is selected, unit will shutdown if neither furnaces is available. Otherwise unit will continue to run without heat. Alarm is generated No other action taken. Alarm is generated No other action taken. Alarm will be generated Unit will be Off by Alarm. Alarm is generated No other action taken. If shutdown unit on cooling alarm is selected, unit will shutdown on single circuit units otherwise circuit 2 could continue to run. If not shutdown unit on cooling alarm Circuit 1 critical alarm is set and unit will run with cooling/dehumidification permanently disabled. Incident logged. Temporary lockout of the circuit. High Duct Pressure Al · Duct pressure has exceeded upper limit setpoint. Alarm generated Unit will be Off by Alarm. High Pressure Al CCT1 High Pressure Al CCT2 High Pressure LO CCT1 High Pressure LO CCT2 Liquid Line Press CCT1 Liquid Line Press CCT2 Liquid Line Temp CCT1 Liquid Line Temp CCT2 Low Pressure Al CCT1 Low Pressure Al CCT2 This input has two strikes, if two trips occur · · Compressor tripped on high pressure limit switch . within an hour an alarm will be generated and Circuit 1 is locked out. This input has two strikes, if two trips occur · · Compressor tripped on high pressure limit switch . within an hour an alarm will be generated and Circuit 2 is locked out. This is temporary lockout, a logged event, · · Compressor tripped on high pressure limit switch . no alarm generated and is part of High Pressure Al CCT1. This is temporary lockout, a logged event, · · Compressor tripped on high pressure limit switch . no alarm generated and is part of High Pressure Al CCT2. · · Liquid Line Pressure Sensor faulty or not connected. If two trips occur within an hour an alarm will be generated and Circuit 1 is locked out. · · Liquid Line Pressure Sensor faulty or not connected. If two trips occur within an hour an alarm will be generated and Circuit 2 is locked out. · · Liquid Line Temperature sensor disconnected or faulty. Alarm is generated - Circuit 1 locked out. · · Liquid Line Temperature sensor disconnected or faulty. Alarm is generated - Circuit 2 locked out. If shutdown unit on cooling alarm is selected, unit will shutdown on single circuit · Low pressure status received by Carel controller and exceeded allowable number of trips per hour. units otherwise circuit 2 could continue to run. If not shutdown unit on cooling alarm Circuit 1 critical alarm is set and unit will run with cooling/dehumidification permanently disabled. Alarm generated. If shutdown unit on cooling alarm is · Low pressure status received by Carel controller and exceeded allowable number of trips per hour. selected, unit will continue to run unless Circuit 1 critical alarm is also present. Cooling circuit 2 permanently disabled. Alarm generated. AR = Auto Reset, UD = Unit Disabled, CD = Component Disabled ATH74-525.2 (continued next page) 39 CONTROLS SYSTEM MANUAL E. Alarm Logger Sub Menu - Alarm Listing (continued) ALARM/LOGGED EVENTS Low Pressure LO CCT1 Low Pressure LO CCT2 Low Pressure Sensor Failure Low Suct. Temp AL CCT1 Low Suct. Temp LO CCT1 Low Superheat Al CCT1 Low Superheat Al CCT2 Low Superheat LO CCT1 Low Superheat LO CCT2 Main Filters Dirty AR UD CD CAUSE · Low pressure status received by Carel controller. · Low pressure status received by Carel controller. · · Suction Line Pressure Sensor faulty or not connected. · Suction temperature has fallen below low limit threshold and exceeded number of trips per hour. · · Suction temperature has fallen below low limit threshold. Superheat value below threshold longer than · allowabe time and exceeded allowed number of trips per hour. Superheat value below threshold longer than · allowabe time and exceeded allowed number of trips per hour. · · Superheat value below threshold longer than allowable time. · · Superheat value below threshold longer than allowable time. ACTION This is temporary lockout, a logged event, no alarm generated and is part of Low Pressure Al CCT1. This is temporary lockout, a logged event, no alarm generated and is part of Low Pressure Al CCT2. Alarm is generated Dehum is locked out. If shutdown unit on cooling alarm is selected, unit will shutdown on single circuit units otherwise circuit 2 could continue to run. If not shutdown unit on cooling alarm Circuit 1 critical alarm is set and unit will run with cooling/dehumidification permanently disabled. Alarm generated. Incident logged. Temporary lockout of the circuit. If shutdown unit on cooling alarm is selected, unit will shutdown on single circuit units otherwise circuit 2 could continue to run. If not shutdown unit on cooling alarm Circuit 1 critical alarm is set and unit will run with cooling/dehumidification permanently disabled. Alarm generated. If shutdown unit on cooling alarm is selected, unit will continue to run unless Circuit 1 critical alarm is also present. Cooling circuit 2 permanently disabled. Alarm generated. Incident logged. Temporary lockout of the circuit. Incident logged. Temporary lockout of the circuit. · Main filters are dirty. Alarm is generated No action taken. Mixed Air Temp Outside Air Hum Outside Air Temp P-Type Mem Fault · · Mixed Air Sensor is either faulty or not connected. Alarm is generated - No action taken. · · Outside Air Sensor is either faulty or not connected. · · Outside Air Sensor is either faulty or not connected. Alarm is generated - Dehum is locked out. Alarm is generated Heating and Cooling are locked out. · Permanent memory fault in controller. Alarm is generated replace controller. Return/Exh Air Hum · · Return Air Sensor faulty or not connected. Alarm is generated - Wheel shutdown. Return/Exh Air Temp · · Return Air Sensor faulty or not connected. Alarm is generated - Wheel shutdown. Smoke Alarm - Auto Res ·· The smoke detector input has been triggered. Alarm is generated - Unit is Off by Alarm. Smoke Alarm - Man. Res · Static Pressure Sensor Failure · Suction Pressure CCT1 · The smoke detector input has been triggered. · Static Pressure Sensor faulty or not connected. · Suction pressure sensor disconnected or faulty. Alarm is generated Unit is shut down. Alarm is generated Static Pressure control is locked out. Alarm is generated Circuit is locked out. Suction Pressure CCT2 · Suction pressure sensor disconnected or faulty. Alarm is generated Circuit is locked out. Suction Temp CCT1 · Suction temperature sensor disconnected or faulty. Alarm is generated Circuit is locked out. Suction Temp CCT2 · Suction temperature sensor disconnected or faulty. Alarm is generated Circuit is locked out. AR = Auto Reset, UD = Unit Disabled, CD = Component Disabled 40 ATH74-525.2 (continued next page) CONTROLS SYSTEM MANUAL E. Alarm Logger Sub Menu - Alarm Listing (continued) ALARM/LOGGED EVENTS AR UD CD CAUSE ACTION Supply Air Temp ·· Supply Air temperature sensor disconnected or faulty. Alarm is generated Unit is Off by Alarm. Supply Fan Airflow · Supply fan is running but the air flow proving switch has not made. Logged condition. Supply Fan Airflow Al · · Supply fan is running but the air flow proving switch has not made. Alarm is generated (after 15 sec) All heating and cooling is stopped. After 180 seconds the supply fan will be turned off. Supply Fan VFD(s) · Health signal from the Supply Fan VFD has indicated a fault. Alarm generated - Unit will be Off by Alarm. Supply High Limit · · The supply air temperature has exceeded its maximum setting. Alarm will be generated Unit Shutdown. Supply Low Limit · · · If the supply air does not get above 40F within 5 min the unit will shut down. Alarm will be generated Unit Shutdown. The Supply Fan has exceeded the set number of run hours · The Supply Fan has gone over the hour's setpoint. Maintenance alarm generated No other action taken. Note: The following applies only to optional gas and 20kw electric heat option is enabled and the unit is fitted with a pCOe expansion module pCOe Offline · · The pCOe is not connected or incorrectly setup and is not communicating to the pCO5. Alarm generated Circuit 2 Locked out. Note: The following applies only to units with an Energy Recovery Section with a pCOxs controller ERV Hum Probe · ERV Temp Probe · ERV Exhaust Fan Airflow Failure · ERV Exhaust Fan Shutdown · ERV Wheel Al (only applicable if the unit includes the optional · rotation detector) · ERV humidity sensor is either faulty or not connected. · ERV Temperature sensor is either faulty or not connected. · ERV Fan running but the air proving switch has not made. · ERV Exhaust Fan has shut down to lack of air flow. · Wheel is on but no rotation being detected . Alarm generated Wheel Shutdown. Alarm generated Wheel Shutdown. Alarm generated Fan will shut down after 180 sec. Alarm generated Fan shuts down. Alarm generated Wheel will shut down after 120 sec. ERV Wheel SD (SD=Shut Down) · · Wheel has shut down due to lack of rotation. Alarm generated. ERV Exh Filters Dirty · ERV exhaust filters are dirty . ERV Wheel Press Drop · ERV Wheel is either dirty, frozen or air flow too high. pLAN Communication Down with ERV unit · · · ERV's controller is not communicating with the main controller. Note: The following only applies if the unit has a pAD Wall thermostat pAD Offline · · pAD is either faulty or not connected. pAD Hum Probe · · pAD Humidity Sensor is faulty. pAD Temp Probe · · pAD Temperature Sensor is faulty. Alarm generated No further action taken. Alarm generated No further action taken. Alarm generated ERV section will not run. Alarm generated - pAD functions will be disabled. Alarm generated Space Dehum functions disabled. Alarm generated Space heating and cooling will be disabled. AR = Auto Reset, UD = Unit Disabled, CD = Component Disabled AR = Auto Reset, UD = Unit Disabled, CD = Component Disabled ATH74-525.2 41 CONTROLS SYSTEM MANUAL F. Board Switch Sub Menu Parameters The Board Switch menu allows the user to jump between different controllers with a remote display. This requires a remote display, along with additional controllers, setup in a pLAN network. A pLAN can consist of up to 32 devices, in different combinations, but a maximum of 31 controllers. The menu displays the following selections: · Unit Address: The pLAN address of the controller the display is currently accessing. · Switch to unit: The pLAN address of the controller the display would like to access. The Board Switch screen will indicate the current devices connected to the pLAN network (Keypad, pAD Wall Stat, and/or ERV unit). In the screen below, the main controller is on address 1. The pCO5+ main unit controller is factory defaulted to the following addresses for modules communicated with on the pLAN: SCREEN NAME SCREEN # PARAMETER DESCRIPTION FACTORY VALUE Board Switch Unit Address: BS1 Switch to Unit: Actual Value Actual Value RANGE pCO5+ Controller ERV Remote Wall Stat (pAD) Superheat Control (EVD1) Superheat Control (EVD2) Remote Display (pGD1) See Above ADDRESS 1 2 4 30 31 32 See Above 42 ATH74-525.2 CONTROLS SYSTEM MANUAL Programming the Remote Display Keypad to the Carel Controller Once the pGD1 is connected to the Carel controller, the address must be set as follows: 1. Press and hold down the UP+DOWN+ENTER buttons simultaneously until "Display Address" screen is shown. The address settings should be: · Display: 32 · I/O Board: 1 (for PCO5) or 2 (for PCOxs) 2. If the settings are not as shown, press the ENTER button to go to the "Terminal Config" screen as follows: 3. Press the ENTER button again. The display will show the following terminal configuration screen: 4. Press the ENTER button until the cursor is underneath the Trm1 setting. Press the UP or DOWN buttons to change the value to 32. 5. Press the ENTER button until the cursor is underneath Pr or Sh. Press the UP or DOWN buttons to change the value to Pr for units without an ERV (Energy Recovery) or Sh for units with an ERV. 6. Press the ENTER button until the cursor is underneath No. Press the UP or DOWN buttons to change the value to Yes and press the ENTER button to complete the programming. ATH74-525.2 43 CONTROLS SYSTEM MANUAL G. Service Sub Menu Parameters The Service menu allows the user to access several sub-menus regarding controller information, controller overrides, operating hours, BMS configuration, I/O manual management and BMS protocol settings (BACnet® or LonWorks®). Certain screens within the Service Sub Menus require a password for access. Refer to the section titled "Password Protection" for additional guidance. SCREEN NAME INFORMATION SPO INFORMATION (if unit has special program) INFORMATION INFORMATION INFORMATION SCREEN # PARAMETER DESCRIPTION FACTORY VALUE a. Information Project Name Actual Value Ver. (Software Version) Actual Value A1 Date (Software Release Date) Actual Value Bios Version & Date Actual Value Boot Version & Date Actual Value SPO Number Actual Value A2 Date: Actual Value Software Changes - pCO Type - Total flash Actual Value RAM Actual Value A3 Built-In Type (Display) Actual Value T Memory Writes Actual Value Main Cycle: Actual Value Cycle Time Actual Value Board Temp: - Board Voltage: A4 Board Current: Actual Value Actual Value Frequency: Actual Value T-Memory Writes: A5 pLAN Online: Actual Value Actual Value Control Power Status Last Off Time: A6 Last On Time: Actual Value Actual Value Restore Dates Supply Fan Condenser Fan CCT 1 Condenser Fan CCT 2 Factory Save: A7 Last Customer Save: Actual Value Actual Value Run Hours: b. Running Hours Actual Value X1 Number of Starts: Actual Value Reset: OFF Run Hours: X2 Number of Starts: Reset: Actual Value Actual Value OFF Run Hours: X3 Number of Starts: Reset: Actual Value Actual Value OFF RANGE Actual Value 50 60 ON OFF - - - - 0 - 350,000 0 - 350,000 OFF ON 0 - 350,000 0 - 350,000 OFF ON 0 - 350,000 0 - 350,000 OFF ON UNITS #.#.### MM/DD/YY MM/DD/YY MM/DD/YY MM/DD/YY Kb Kb Cycles/sec ms °F Vac mA Hz - MM/DD/YY HH/MM/SS MM/DD/YY HH/MM/SS MM/DD/YY HH/MM/SS MM/DD/YY HH/MM/SS (h)ours - - (h)ours - - (h)ours - - (continued next page) 44 ATH74-525.2 CONTROLS SYSTEM MANUAL G. Service Sub Menu Parameters (continued) SCREEN NAME Compressor 1 Compressor 2 Compressor 3 Compressor 4 Gas Heater 1 Gas Heater 2 Exhaust Fan Electric Heat 1 Electric Heat 2 Electric Heat 3 Electric Heat 4 ERV Exhaust Fan ERV Wheel SCREEN # PARAMETER DESCRIPTION Run Hours: X4 Number of Starts: Reset: Run Hours: X5 Number of Starts: Reset: Run Hours: X6 Number of Starts: Reset: Run Hours: X7 Number of Starts: Reset: Run Hours: X8 Number of Starts: Reset: Run Hours: X9 Number of Starts: Reset: Run Hours: X10 Number of Starts: Reset: Run Hours: X11 Number of Starts: Reset: Run Hours: X12 Number of Starts: Reset: Run Hours: X13 Number of Starts: Reset: Run Hours: X14 Number of Starts: Reset: Run Hours: X15 Number of Starts: Reset: Run Hours: X16 Number of Starts: Reset: FACTORY VALUE Actual Value Actual Value OFF Actual Value Actual Value OFF Actual Value Actual Value OFF Actual Value Actual Value OFF Actual Value Actual Value OFF Actual Value Actual Value OFF Actual Value Actual Value OFF Actual Value Actual Value OFF Actual Value Actual Value OFF Actual Value Actual Value OFF Actual Value Actual Value OFF Actual Value Actual Value OFF Actual Value Actual Value OFF RANGE 0 - 350,000 0 - 350,000 OFF ON 0 - 350,000 0 - 350,000 OFF ON 0 - 350,000 0 - 350,000 OFF ON 0 - 350,000 0 - 350,000 OFF ON 0 - 350,000 0 - 350,000 OFF ON 0 - 350,000 0 - 350,000 OFF ON 0 - 350,000 0 - 350,000 OFF ON 0 - 350,000 0 - 350,000 OFF ON 0 - 350,000 0 - 350,000 OFF ON 0 - 350,000 0 - 350,000 OFF ON 0 - 350,000 0 - 350,000 OFF ON 0 - 350,000 0 - 350,000 OFF ON 0 - 350,000 0 - 350,000 OFF ON UNITS (h)ours (h)ours (h)ours (h)ours (h)ours (h)ours (h)ours (h)ours (h)ours (h)ours (h)ours (h)ours (h)ours - (continued next page) ATH74-525.2 45 CONTROLS SYSTEM MANUAL G. Service Sub Menu Parameters (continued) SCREEN NAME ERV Preheater Aux-Electric Heat SCREEN # PARAMETER DESCRIPTION Run Hours: X17 Number of Starts: Reset: Run Hours: X18 Number of Starts: Reset: FACTORY VALUE Actual Value Actual Value OFF Actual Value Actual Value OFF Running Hours Hours Save: X19 Hours Restore: PM Address: c. Power Meter OFF OFF 001 VT Wiring Type: 3LL Power Meter Power Meter Voltages (V) Current (A) Total System Energy Import Energy Export Energy PM1 CT Wiring Type: PM2 PM3 PM4 PM5 Primary VT: Secondary VT: Primary CT: Secondary CT: Primary CT: Secondary CT: Primary VT: Secondary VT: Reset Counters: L1 - L2: L2 - L3: L3 - L1: Line 1: Line 2: Line 3: Power Factor: Frequency (Hz) Active (kW) Reactive (kVAR) Apparent(kVA) Load Type: PM6 PM7 Active (kWh) Reactive (kVArh) Active (kWh) Reactive (kVArh) 3CT 400.0 400.0 150 5 Actual Value Actual Value Actual Value Actual Value No Actual Value Actual Value Actual Value Actual Value Actual Value Actual Value Actual Value Actual Value Actual Value Actual Value Actual Value - Actual Value Actual Value Actual Value Actual Value RANGE 0 - 350,000 0 - 350,000 OFF ON 0 - 350,000 0 - 350,000 OFF ON OFF ON OFF ON 0 - 254 3Ln 2Ln 2LL 3LL 3CT 1CT 2CT 0.0 - 999.9 0.0 -999.9 0 - 9999 - - - - No Yes - - - - - - - - - - Capacitive Inductive Resistive - - - - UNITS (h)ours (h)ours - - - - - - (A)mps (A)mps (V)olts (V)olts Volts Volts Volts Amps Amps Amps Hz kW kVAR kVA - kWh kVArh kWh kVArh (continued next page) 46 ATH74-525.2 CONTROLS SYSTEM MANUAL G. Service Sub Menu Parameters (continued) SCREEN NAME THD (%) SCREEN # PARAMETER DESCRIPTION FACTORY VALUE L1 - L2: Actual Value L2 - L3: Actual Value PM8 L3 - L1: Line 1: Actual Value Actual Value Line 2: Actual Value Line 3: Actual Value d. BMS Config. BMS Configuration (Control System Supports the Following Protocols: Lon BACnet IP/Eth BACnet MSTP) BMS Configuration BMS-1 Protocol: U1 BACnet PlugIn? BMS-2 Protocol: Address U2 Baud rate BMS Configuration BMS Configuration MSTP SETUP (Screen only Visible When BACnet MSTP is Selected and BACnet PlugIn is Enabled.) TCP/IP Setup (Screen Only Visible when BACnet IP/Eth is Selected and BACnet Plugin is Enabled.) TCP/IP Setup (Page 2) (Screen Only Visible when BACnet IP/Eth is Selected and BACnet Plugin is Enabled.) Enable Heartbeat: U3 Thresholds: Timeout: Period: U4 If BMS Offline Turn Unit: Instance Baud rate U5 MAC Address: MaxMasters: MaxInfoFrames: Instance: IP: U6 SubNet: Gateway: DNS 1 U7 DNS 2 Type BACnet MSTP NO PCOLOAD 1 2400 OFF 5 300s Actual Value OFF 0 N/A 0 0 0 Actual Value Actual Value Actual Value Actual Value Actual Value Actual Value Actual Value RANGE - - - - - - N/A CAREL MODEM MODBUS PCOLOAD BACnet MSTP BACnet IP/Eth LON NO YES N/A PCOLOAD CAREL MODBUS 0 - 999 1200 2400 4800 9600 19200 OFF ON 0 - 999 0 - 9999 0.0 -999.9 OFF ON 0 - 4194999 N/A 9600 19200 38400 76800 0 - 127 0 - 127 0 - 99 0 to 99,000 0.0.0.0 to 255.255.255.255 255.0.0.0 to 255.255.255.0 0.0.0.0 to 255.255.255.255 0.0.0.0 to 255.255.255.255 0.0.0.0 to 255.255.255.255 IP Ethernet UNITS % % % % % % - - - - - (s)econds (s)econds - bps - (continued next page) ATH74-525.2 47 CONTROLS SYSTEM MANUAL G. Service Sub Menu Parameters (continued) SCREEN NAME SCREEN # PARAMETER DESCRIPTION FACTORY VALUE BACnet Read/Write (Screen Only Visible Function: when BACnet IP/Eth or BACnet MSTP is Selected and BACnet Plugin is U8 Update? Enabled.) Read NO e. Fieldbus Config. Fieldbus 1 Config. Fieldbus 1 Config. FB1 Protpcol: Fieldbus 2 Config. Protpcol: WinLoad MODBUS Modbus Status FB2 Modbus CMD Result: - Baudrate: Configuration of Modbus Settings 1st Master Stop Bit: FB3 Parity Mode: Timeout Error Status: 19200 1 None 180ms None Baudrate: Configuration of Modbus Settings 2nd Master Power Meter Settings Stop Bit: FB4 Parity Mode: Timeout Error Status: Enable Power Meter: Modbus Address: FB3 BaudRate: 19200 1 None 180ms None Off 001 19200 Serial Probe n°01 - 04 Serial Probe n°01 - 04 Location: (Alphanumeric description used for front screen) FB6 - FB9 Address: Type: Default Inst. OFF 128 - 131 TEMPERATURE NO RANGE Read Write NO YES - MODBUS WinLoad Modbus General Error Invalid Com Config Com Config Done No Error 1200 2400 4800 9600 19200 1,2 None Even Odd 100 - 5000 "Nothing" Generic Error Bios Error 1200 2400 4800 9600 19200 1,2 None Even Odd 100 - 5000 "Nothing" Generic Error Bios Error ON/OFF 001 - 255 1200 2400 4800 9600 19200 ON OFF - 128 - 159 TEMPERATURE TEMP.+HUMID. NO YES UNITS - - Bits/s ms - Bits/s ms - Bits/s - (continued next page) 48 ATH74-525.2 CONTROLS SYSTEM MANUAL G. Service Sub Menu Parameters (continued) SCREEN NAME SCREEN # PARAMETER DESCRIPTION FACTORY VALUE Temperature and Humidity control pAD Control Supply Fan FB10 FB11 M1 Temperature process control for all space readings: AVERAGE Humidity process control for all space readings: AVERAGE INCLUDE/EXCLUDE pAD in temperature and humidity averaging or maximum reading. INCLUDE f. Service Settings / a. Maintenance Hours Maint Hours: Setpoint: Actual Value 0 Reset to Zero? NO Condenser Fan CCT 1 Maint Hours: M2 Setpoint: Reset to Zero? Actual Value 0 NO Condenser Fan CCT 2 Maint Hours: M3 Setpoint: Reset to Zero? Actual Value 0 NO Compressor 1 Maint Hours: M4 Setpoint: Reset to Zero? Actual Value 0 NO Compressor 2 Maint Hours: M5 Setpoint: Reset to Zero? Actual Value 0 NO Compressor 3 Maint Hours: M6 Setpoint: Reset to Zero? Actual Value 0 NO Compressor 4 Maint Hours: M7 Setpoint: Reset to Zero? Actual Value 0 NO Gas Heater 1 Maint Hours: M8 Setpoint: Reset to Zero? Actual Value 0 NO Gas Heater 2 Maint Hours: M9 Setpoint: Reset to Zero? Actual Value 0 NO Exhaust Fan Maint Hours: M10 Setpoint: Reset to Zero? Actual Value 0 NO Electric Heat 1 Maint Hours: M11 Setpoint: Reset to Zero? Actual Value 0 NO RANGE AVERAGE MAXIMUM pAD ONLY AVERAGE MAXIMUM pAD ONLY INCLUDE EXCLUDE 0 - 350,000 0 - 350,000 NO YES 0 - 350,000 0 - 350,000 NO YES 0 - 350,000 0 - 350,000 NO YES 0 - 350,000 0 - 350,000 NO YES 0 - 350,000 0 - 350,000 NO YES 0 - 350,000 0 - 350,000 NO YES 0 - 350,000 0 - 350,000 NO YES 0 - 350,000 0 - 350,000 NO YES 0 - 350,000 0 - 350,000 NO YES 0 - 350,000 0 - 350,000 NO YES 0 - 350,000 0 - 350,000 NO YES UNITS - - - (h)ours (h)ours (h)ours (h)ours (h)ours (h)ours (h)ours (h)ours (h)ours (h)ours (h)ours (h)ours (h)ours (h)ours (h)ours (h)ours (h)ours (h)ours (h)ours (h)ours (h)ours (h)ours - (continued next page) ATH74-525.2 49 CONTROLS SYSTEM MANUAL G. Service Sub Menu Parameters (continued) SCREEN NAME Electric Heat 2 Electric Heat 3 Electric Heat 4 ERV Exhaust Fan ERV Wheel ERV Preheater Aux-Electric Heat Return Air Humidity CO2 Furnace Stage 2 Evaporator Off Temp Duct Static Pressure SCREEN # PARAMETER DESCRIPTION Maint Hours: M12 Setpoint: Reset to Zero? FACTORY VALUE Actual Value 0 NO Maint Hours: M13 Setpoint: Reset to Zero? Actual Value 0 NO Maint Hours: M14 Setpoint: Reset to Zero? Actual Value 0 NO Maint Hours: M15 Setpoint: Reset to Zero? Actual Value 0 NO Maint Hours: M16 Setpoint: Reset to Zero? Actual Value 0 NO Maint Hours: M17 Setpoint: Reset to Zero? Actual Value 0 NO Maint Hours: M18 Setpoint: Reset to Zero? Actual Value 0 NO f. Service Settings / b. Probe Adjustment Input: Offset: P1 Calibration Offset Value: (including Offset) Input: Offset: P2 Calibration Offset Value: (including Offset) Input: Offset: P3 Calibration Offset Value: (including Offset) Input: Offset: P4 Calibration Offset Value: (including Offset) Input: Offset: P5 Calibration Offset Value: (including Offset) U01 0 Actual Value U02 0 Actual Value U02 0 Actual Value U02 0 Actual Value U03 0 Actual Value RANGE 0 - 350,000 0 - 350,000 NO YES 0 - 350,000 0 - 350,000 NO YES 0 - 350,000 0 - 350,000 NO YES 0 - 350,000 0 - 350,000 NO YES 0 - 350,000 0 - 350,000 NO YES 0 - 350,000 0 - 350,000 NO YES 0 - 350,000 0 - 350,000 NO YES - -99.9 - 99.9 - - -99.9 - 99.9 - - -99.9 - 99.9 - - -99.9 - 99.9 - - -99.9 - 99.9 - UNITS (h)ours (h)ours (h)ours (h)ours (h)ours (h)ours (h)ours (h)ours (h)ours (h)ours (h)ours (h)ours (h)ours (h)ours - %rH %rH - ppm ppm - vdc vdc °F °F iwc iwc (continued next page) 50 ATH74-525.2 CONTROLS SYSTEM MANUAL G. Service Sub Menu Parameters (continued) SCREEN NAME SCREEN # PARAMETER DESCRIPTION Building Pressure Outside Air Temperature Return Air Temperature Discharge Line Temperature Outside Air Humidity Furnace Stage 1 Mixed Air Temperature Supply Air Temperature Input: Offset: P6 Calibration Offset Value: (including Offset) Input: Offset: P7 Calibration Offset Value: (including Offset) Input: Offset: P8 Calibration Offset Value: (including Offset) Input: Offset: P9 Calibration Offset Value: (including Offset) Input: Offset: P10 Calibration Offset Value: (including Offset) Input: Offset: P11 Calibration Offset Value: (including Offset) Input: Offset: P12 Calibration Offset Value: (including Offset) Input: Offset: P13 Calibration Offset Value: (including Offset) pCOe number: Offset Ch 1: pCOe P14 Offset Ch 2: Offset Ch 3: Offset Ch 4: EVD n° S1 Offset: EVD 1 P15 S1 Probe: S2 Offset: S2 Probe: EVD n° S3 Offset: EVD 1 P16 S3 Probe: S4 Offset: S4 Probe: FACTORY VALUE U03 0 Actual Value U04 0 Actual Value U05 0 Actual Value U06 0 Actual Value U07 0 Actual Value U08 0 Actual Value U09 0 Actual Value U10 0 Actual Value Actual Value 0 0 0 0 01.a 0 Actual Value 0 Actual Value 01.b 0 Actual Value 0 Actual Value (continued next page) ATH74-525.2 RANGE -99.9 - 99.9 -99.9 - 99.9 -99.9 - 99.9 -99.9 - 99.9 -99.9 - 99.9 -99.9 - 99.9 -99.9 - 99.9 -99.9 - 99.9 -999.9 - 999.9 -999.9 - 999.9 -999.9 - 999.9 -999.9 - 999.9 -870 - 870 -36.0 - 36.0 -870 - 870 -36.0 - 36.0 - UNITS - iwc iwc °F °F °F °F °F °F %rH %rH - vdc vdc °F °F °F °F psig psig °F °F psig psig °F °F 51 CONTROLS SYSTEM MANUAL G. Service Sub Menu Parameters (continued) SCREEN NAME EVD 2 EVD 2 pGD1 Settings Control Settings SCREEN # PARAMETER DESCRIPTION FACTORY VALUE EVD n° 02.a S1 Offset: 0 P17 S1 Probe: Actual Value S2 Offset: 0 S2 Probe: Actual Value EVD n° 02.b S3 Offset: 0 P18 S3 Probe: Actual Value S4 Offset: 0 S4 Probe: Actual Value f. Service Settings / c. Control Settings Disable Buzzer: CS1 Backlight Delay: Temperature Units: CS2 Barometric Pressure: YES 5 °F 29.92 By Digital Input: OFF Enable Unit On/Off By Supervisor: CS3 By pLAN network: OFF OFF By Schedule: OFF pAD Thermostat: OFF Control Settings Reset Type: CS4 NONE Dehum Mode: NONE Control Settings Control Settings Allow pAD Setpoint to be Neutral CS5 Air Setpoint: (Screen shown if pAD is ON and Reset Type is set to NONE) CS6 Supply Air Reset Filtering Time: Air Balance Adj. Constant Speed: Speed 1: Press Setpt: Supply Fan Control (Building or Duct Static Pressure) (Parameters depend on Supply Fan configuration CS7 CO2 Setpoint BMS Modulation: type) Speed 2: Speed 3: Minimum Output: Speed 4: Maximum Output: NO 10 0 100.0 50.0 0.100 1.500 800 (Min Output) 70.0 85.0 50 100.0 100 RANGE - -870 - 870 - -36.0 - 36.0 - - -870 - 870 - -36.0 - 36.0 - NO YES 5 - 100 °F 28.00 - 30.99 OFF ON OFF ON OFF ON OFF ON OFF ON NONE SPACE OUTSIDE AIR SPACE & OA NONE OA DEWPOINT OA & SPACE SPACE MA & SPACE MA DEWPOINT NO YES 0 - 999 -20 - 20 Min - Max Output 0 - 100.0 0.000 - 0.500 0.000 - 5.000 0 - 2000 Min - Max Output 0 - 100.0 0 - 100.0 Design Min Limits 0 - 100.0 Design Max Limits UNITS - psig psig °F °F psig psig °F °F (m)inutes inHg - - - - - - - - (s)econds % % iwc iwc ppm % % % % % % (continued next page) 52 ATH74-525.2 CONTROLS SYSTEM MANUAL G. Service Sub Menu Parameters (continued) SCREEN NAME Exhaust Fan Control (Parameters depend on Exhaust Fan configuration type) OA Damper Control (Parameters depend on Damper configuration type. Screen not shown on DOAS units) SCREEN # PARAMETER DESCRIPTION Constant Speed: Speed 1: Press Setpt: (Building Pressure) Sup Fan Offset: CS8 BMS Modulation: Speed 2: Speed 3: Minimum Output: Speed 4: Maximum Output: OA Position: OA Damp Pos 1: CO2 Setpoint: Building Pressure Setpoint: BMS OA Damper Pos: CS9 OA Damp Pos 2: OA Damp Pos 3: OA Damp Min Opent: OA Damp Pos 4: OA Damp Max Open: Gas and Electric Staging Setup CS10 Gas OR Electric C/O: OA Setpoint: OA On Differential: Gas and Electric Staging Setup CS11 Gas AND Electric: OA Setpoint: OA On Differential: Boost Heater (for control of external heater) Temperature Lockouts Mechanical Lockouts Fan-Only Mode Diff. CS12 CS13 CS14 CS15 Boost Heat En: OA Setpoint: OA On Differential: Compressor and Furnace Lockouts Reference: Cooling Below: Heating Above: Above Setpoint: Current Setpoint: Below Setpoint: Temp/Time Delay: Heat/Cool Change over Delay: HGRH Settings Hot Water Settings Hot Water Settings Dual Point Power CS16 CS17 CS18 CS19 Control HGRH to: HGRH Setpoint: Un-occupied Bleed OA Setpoint: Un-occupied Bleed HW Valve Position: Occupied Bleed OA Setpoint: Occupied Bleed HW Valve Position: Enable: Enable Furnace in Standby: FACTORY VALUE 50.0 20.0 0.100 -10.0 (Min Output) 40.0 70.0 20.0 100.0 100.0 50 50 800 0.100 (Min Open) 50 50 0 50 100 ON 50.0 5.0 OFF 10.0 5.0 OFF 10.0 5.0 OUTSIDE AIR 45.0 65.0 5.0 Actual Value -5.0 30 5.0 SUPPLY AIR SETPOINT 50.0 40.0 20 50.0 10 OFF OFF RANGE 20.0 - 100.0 0 - 100 0.000 - 0.500 -20.0 - 20.0 Min - Max Output 0 - 100 0 - 100 40 - 100 0 - 100 40 - 100 Min - Max Output 0 - 100 0 - 2000 0.000 - 0.500 0 - 100 0 - 100 0 - 100 Design Min Limits 0 - 100 Design Max Limits OFF ON 0 - 100.0 1.0 - 10.0 OFF ON -50.0 - 100.0 1.0 - 10.0 OFF ON -50.0 - 100.0 1.0 - 10.0 OUTSIDE AIR RETURN AIR 0.0 - 99.9 1.0 - 99.9 0.0 - 99.9 - -10.0 - 0.0 10 - 180 5 - 60 SUPPLY AIR SETPOINT HGRH SETPOINT 50.0 - 90.0 0.0 - 99.9 0 - 100 0.0 - 99.0 0 - 100 OFF ON OFF ON UNITS % % iwc % % % % % % % % % ppm iwc % % % % % % - °F °F - °F °F - °F °F - °F °F °F °F °F (s)econds (m)inutes - °F °F % °F % - - (continued next page) ATH74-525.2 53 CONTROLS SYSTEM MANUAL G. Service Sub Menu Parameters (continued) SCREEN NAME Standby Power Mode Operation SCREEN # PARAMETER DESCRIPTION CS20 Exhaust Fan Speed: Damper Position: FACTORY VALUE CURRENT SPEED CURRENT POS Customer Parameters Cooling Control Dehum Control Heating Control Customer Save: NO - Customer Restore: NO f. Service Settings / d. P/PI/PID Loops Proportional Gain: 3.0 Integration Time: 100 D1 Derivative Time: 0 Anti-Bump Xfer: ON Output Period: 500 Proportional Gain: - (B & C Cabinet Sizes) 1.0 - (D Cabinet Size) 3.0 Integration Time: - (B & C Cabinet Sizes) 225 D2 - (D Cabinet Size) 125 Derivative Time: 0 Anti-Bump Xfer: ON Output Period: 500 Proportional Gain: 3.5 Integration Time: 160 D3 Derivative Time: 0 Anti-Bump Xfer: ON Output Period: 500 Control Type: Hot Gas Reheat (Screen visible on HGRH units) Hot Gas Reheat (Screen visible on HGRH units) Condenser Fan CCT 1 D4 Bd: Band: Integration Time: (if control type is P+I) Derivative Time: (if control type is PID) Output Period: Dead Band: D5 Above Set Point: Below Set Point: Proportional Gain: Integration Time: D6 Derivative Time: Anti-Bump Xfer: REV P+I FULL 100.0 80 0 500 OFF 0.0 0.0 1.0 100 0 ON RANGE CURRENT SPEED OFF CURRENT POS 100% OA NO YES NO YES 0 - 99.9 0 - 999.9 0 - 999 OFF ON - 0 - 99.9 0 - 999.9 0 - 999 OFF ON - 0 - 99.9 0 - 999.9 0 - 999 OFF ON DIR REV BOTH P P+I PID FULL HALF 0 - 999.9 0 - 999 0 - 999 0 - 9999 OFF ON 0 - 99.9 0 - 99.9 0 - 99.9 0 - 999.9 0 - 999 OFF ON UNITS - (s)econds (s)econds ms - (s)econds (s)econds - ms - (s)econds (s)econds ms - - (s)econds (s)econds ms (s)econds (s)econds - (continued next page) 54 ATH74-525.2 CONTROLS SYSTEM MANUAL G. Service Sub Menu Parameters (continued) SCREEN NAME Condenser Fan CCT 2 (D-Cabinet only) Economizer Control (Enthalpy Economizer Selected) SCREEN # PARAMETER DESCRIPTION Proportional Gain: Integration Time: D7 Derivative Time: Anti-Bump Xfer: Proportional Gain: Integration Time: D8 Derivative Time: Anti-Bump Xfer: Control Type: CO2 Damper Control CO2 Damper Control Band: D9 Integration Time: (if control type is P+I) Derivative Time: (if control type is PID) Min: (if control type is PID) Max: (if control type is PID) Output Period: Dead Band: D10 Above Set Point: Below Set Point: Control Type: Bd: ERV Preheater Control (Screen Visible with ERV) D11 Band: Integration Time: (if control type is P+I) Derivative Time: (if control type is PID) Min: (if control type is PID) Max: (if control type is PID) Output Period: Dead Band: ERV Preheater Control (Screen Visible with ERV) D12 Above Set Point: Below Set Point: FACTORY VALUE 1.0 100 0 ON 1.0 100 0 ON DIR P+I 20.0 100 0 0 0 500 OFF 0 0 REV P+I FULL 20.0 100 0 0 0 500 OFF 0 0 RANGE 0 - 99.9 0 - 999.9 0 - 999 OFF ON 0 - 99.9 0 - 999.9 0 - 999 OFF ON DIR REV BOTH P P+I PID 0 - 999.9 0 - 999 0 - 999 -1000 - 1000 -1000 - 1000 0 - 9999 OFF ON 0 - 99.9 0 - 99.9 DIR REV BOTH P P+I PID FULL HALF 0 - 999.9 0 - 999 0 - 999 -1000 - 1000 -1000 - 1000 0 - 9999 OFF ON 0 - 99.9 0 - 99.9 UNITS - (s)econds (s)econds (s)econds (s)econds - - - (s)econds (s)econds ms - - - (s)econds (s)econds ms - (continued next page) ATH74-525.2 55 CONTROLS SYSTEM MANUAL G. Service Sub Menu Parameters (continued) SCREEN NAME SCREEN # PARAMETER DESCRIPTION Control Type: Bd: ERV Exhaust Fan Control (Screen Visible with ERV) D13 Band: Integration Time: (if control type is P+I) Derivative Time: (if control type is PID) Min: (if control type is PID) Max: (if control type is PID) Output Period: Dead Band: ERV Exhaust Fan (Screen Visible with ERV) D14 Above Set Point: Below Set Point: Supply Fan Building Pressure Control (Screen Visible with Building Pressure Sensor) Supply Fan Building Pressure Control (Screen Visible with Building Pressure Sensor) Control Type: Band: D15 Integration Time: (if control type is P+I) Derivative Time: (if control type is PID) Min: (if control type is PID) Max: (if control type is PID) Output Period: Dead Band: D16 Above Set Point: Below Set Point: Control Type: Supply Fan Static Pressure Control (Screen Visible with Static Pressure Sensor) Supply Fan Static Pressure Control (Screen Visible with Static Pressure Sensor) Band: D17 Integration Time: (if control type is P+I) Derivative Time: (if control type is PID) Min: (if control type is PID) Max: (if control type is PID) Output Period: Dead Band: D18 Above Set Point: Below Set Point: FACTORY VALUE DIR P+I FULL 50.0 100 0 0 0 500 OFF 0 0 REV P+I 10.0 120 0 0 0 500 OFF 0 0 REV P+I 30.0 120 0 0 0 500 OFF 0 0 RANGE DIR REV BOTH P P+I PID FULL HALF 0 - 999.9 0 - 999 0 - 999 -1000 - 1000 -1000 - 1000 0 - 9999 OFF ON 0 - 99.9 0 - 99.9 DIR REV BOTH P P+I PID 0 - 999.9 0 - 999 0 - 999 -1000 - 1000 -1000 - 1000 0 - 9999 OFF ON 0 - 99.9 0 - 99.9 DIR REV BOTH P P+I PID 0 - 999.9 0 - 999 0 - 999 -1000 - 1000 -1000 - 1000 0 - 9999 OFF ON 0 - 99.9 0 - 99.9 UNITS - - (s)econds (s)econds ms - - - (s)econds (s)econds ms - - - (s)econds (s)econds ms - (continued next page) 56 ATH74-525.2 CONTROLS SYSTEM MANUAL G. Service Sub Menu Parameters (continued) SCREEN NAME SCREEN # PARAMETER DESCRIPTION FACTORY VALUE Exhaust Fan Building Pressure Control (Screen Visible on HOAS units with Building Pressure Sensors) Exhaust Fan Building Pressure Control (Screen Visible on HOAS units with Building Pressure Sensors) Temperature Differential Alarms Supply Fan Alarm Exhaust Fan Alarm Duct Static Pressure (Screen Visible with Static Pressure Sensor) Duct Static Pressure (Screen Visible with Static Pressure Sensor) Supply Fan Alarm Force Off Comps Furnace Alarms Furnace Alarms Smoke Detector Alarm DIR Control Type: P+I D19 D20 AM1 AM2 AM3 Band: 5.0 Integration Time: (if control type is P+I) 100 Derivative Time: (if control type is PID) 0 Min: (if control type is PID) 0 Max: (if control type is PID) 0 Output Period: 500 Dead Band: OFF Above Set Point: 0 Below Set Point: 0 f. Service Settings / e. Alarm Management Differential Alarm Enable: NO Cooling Differential: 1.0 Cooling Alarm Delay: 10 Heating Differential: 5.0 Heating Alarm Delay 3 Startup Delay: 15 Shut Down Delay: 180 Alarm Delay: 30 Shut Down Delay: 180 Enable Airflow Proving Switch NO AM4 Sensor Failure Action: Sup-Fan Min Speed AM5 AM6 High Static Alarm Shutdown Pressure: Shutdown Unit on a Compressor Alarm High Limit Alarm Comp 1 (Dig): AM7 AM8 AM9 AM10 Comp 2: Comp 3: (Dual circuit system) Comp 4: (Dual circuit system) Shut Down Unit on a Beckett Board Failure: (Stage 1 or Stage 1 and Stage 2) (Beckett furnace control board) Gas Alarm Delay: (United Tech. furnace control board) Reset Type: 5.000 NO 610.0 OFF OFF OFF OFF NO 240 AUTO RANGE DIR REV BOTH P P+I PID 0 - 999.9 0 - 999 0 - 999 -1000 - 1000 -1000 - 1000 0 - 9999 OFF ON 0 - 99.9 0 - 99.9 NO YES 0 - 10.0 0 - 30 0 - 10.0 0 - 30 0 - 999 0 - 999 0 - 999 0 - 999 NO YES Sup-Fan Min Speed Unit Shutdown 0 - 9.999 NO YES 500.0 - 700.0 OFF ON OFF ON OFF ON OFF ON NO YES 0 - 500 AUTO MANUAL UNITS - (s)econds (s)econds ms - °F (m)inutes °F (m)inutes (s)econds (s)econds (s)econds (s)econds - - iwc psig - - (m)inutes - (continued next page) ATH74-525.2 57 CONTROLS SYSTEM MANUAL G. Service Sub Menu Parameters (continued) SCREEN NAME Retry Status SCREEN # PARAMETER DESCRIPTION AM11 Condensate Float Status: Supply Fan Shutdown Status: Retry Status AM12 Supply Air Temperature Status: Retry Status AM13 EVD1 Offline Status: EVD1 Valve A Status: Retry Status AM14 Low Pressure CCT1 Status: High Pressure CCT1 Status: Retry Status AM15 Low Superheat CCT1 Status: Low Suction Temp CCT1 Status: Retry Status AM16 Discharge Line Temp Status: Condenser Fans CCT1 Status: Retry Status AM17 Comp Env. CCT1 Status: Comp Avoid Zone CCT1 Status: Retry Status AM18 Max Restarts CCT1 Status: Retry Status AM19 EVD2 Offline Status: EVD2 Valve A Status: Retry Status AM20 Low Pressure CCT2 Status: High Pressure CCT2 Status: Retry Status AM21 Low Superheat CCT2 Status: Low Suction Temp CCT2 Status: Retry Status AM22 Condenser Fan CCT2 Status: Retry Status AM23 Comp Env. CCT2 Status: Comp Avoid Zone CCT2 Status: Retry Status AM24 Max Restarts CCT2 Status: FACTORY VALUE 0/ 0 0/ 0 0/ 0 0/ 0 0/ 0 0/ 0 0/ 0 0/ 0 0/ 0 0/ 0 0/ 0 0/ 0 0/ 0 0/ 0 0/ 0 0/ 0 0/ 0 0/ 0 0/ 0 0/ 0 0/ 0 0/ 0 0/ 0 0/ 0 RANGE - UNITS trips/ (m)inute trips/ (m)inute trips/ (m)inute trips/ (m)inute trips/ (m)inute trips/ (m)inute trips/ (m)inute trips/ (m)inute trips/ (m)inute trips/ (m)inute trips/ (m)inute trips/ (m)inute trips/ (m)inute trips/ (m)inute trips/ (m)inute trips/ (m)inute trips/ (m)inute trips/ (m)inute trips/ (m)inute trips/ (m)inute trips/ (m)inute trips/ (m)inute trips/ (m)inute trips/ (m)inute (continued next page) 58 ATH74-525.2 CONTROLS SYSTEM MANUAL G. Service Sub Menu Parameters (continued) WARNING Improper control adjustments and manual mode control can cause property damage, injury or death. Read the installation, operating and maintenance instructions thoroughly before making adjustments. SCREEN NAME Manual Override SCREEN # PARAMETER DESCRIPTION FACTORY VALUE g. Manual Management / a. Manual Control MN1 Time: 30 Enable Demand Control: OFF Select Mode: (Unit Specific) FAN-ONLY Demand Control MN2 Cool: 0 Dehum: 0 Heat: 0 Aux Heat: 0 Econ: 0 Enable Manual Valve Position: OFF EVD n°01.a Carel EEV EVD n°02.a Carel EEV (Dual Circuit Unit) EVD n°01.b HGRH Valve MN3 MN4 MN5 Manual Position: Current Position: Enable Manual Valve Position: Manual Position: Current Position: Enable Manual Valve Position: Manual Position: Current Position: 0 Actual Value Actual Value OFF 0 Actual Value Actual Value OFF 0 Actual Value EVD n°02.b HGRH Valve (Dual Circuit Unit) MN6 Enable Manual Valve Position: Manual Position: OFF 0 Current Position: Actual Value g. Manual Management / b. Analog Inputs Manual Control U "XX": Puts the input into manual mode Return Air Humidity (As the analog inputs have been listed under "Inputs/Outputs" section, only the Return Air C1 to C13 Manual Position: Sets the Manual Value for this input (only has an affect when the input is in manual control, item above is ON). Humidity sensor has U "XX" Value: been detailed.) If Manual Control is OFF it is the actual value of the Sensor. If Manual Control is ON it is the value of the Manual Position. OFF 0 Actual Value RANGE 0 - 480 OFF ON FAN-ONLY ECON HEATING COOLI NG DEHUM 0 - 100 0 - 100 0 - 100 0 - 100 0 - 100 OFF ON 0 - 480 Actual Value Actual Value OFF ON 0 - 480 Actual Value Actual Value OFF ON 0 - 100 Actual Value OFF ON 0 - 100 Actual Value OFF ON - - UNITS (m)inutes - - % % % % % steps steps % steps steps % % % % % - °F °F (continued next page) ATH74-525.2 59 CONTROLS SYSTEM MANUAL G. Service Sub Menu Parameters (continued) SCREEN NAME SCREEN # PARAMETER DESCRIPTION FACTORY VALUE g. Manual Management / c. Digital Inputs Manual Control DI "XX": Puts the input into manual mode Digital Input High Manual Position: Pressure Sets the Manual Value for this (As the digital inputs input (only has an affect when the have been listed under "Inputs/Outputs" D1 to D20 input is in manual control, item above is ON). section, only the High DI "XX" Status: Pressure switch has been If Manual Control is OFF it is the detailed.) actual status of the input. If Manual Control is ON it is the status of the Manual Position. OFF Actual Value Actual Value g. Manual Management / d. Relay Outputs Manual Relay "XX": Puts the output into manual mode OFF Manual Position: Relay Output Heat 1 Sets the Manual Value for this (As the digital outputs output (only has an affect when have been listed under "Inputs/Outputs" section, G1 To G17 the output is in manual control, item above is ON). Only Heat 1 has been detailed.) Relay "XX" Status: If Manual Control is OFF it is the actual status of the output. If Manual Control is ON it is the status of the Manual Position. Actual Value Actual Value g. Manual Management / e. Analog Outputs Manual Y "X": Puts the output into manual mode AUTO Damper Modulation (As the analog outputs have been listed under "Inputs/Outputs" section, Only the Damper Modulation value has been detailed.) H1 to H6 Manual Value Sets the Manual Value for this output (only has an affect when the output is in manual control, item above is HAND). Y "X" Output: If Manual Control is AUTO it is the actual value of the output. If Manual Control is HAND it is the value of Manual Value. Actual Value Actual Value g. Manual Management / f. Exp. Board (pCOe) Condenser Fans CCT2 (As the expansion board digital outputs have been listed under "Inputs/ Outputs" section, Only Condenser Fans CCT2 has been detailed for the expansion board.) F1 to F4 pCOe Number: Manual Relay "X": Puts the output into manual mode Manual Position: Sets the Manual Value for this output (only has an affect when the output is in manual control, item above is HAND). Relay "X" Status: If Manual Control is AUTO it is the actual value of the output. If Manual Control is HAND it is the value of Manual Value. Actual Value AUTO Actual Value Actual Value RANGE OFF ON CLOSED OPEN CLOSED OPEN OFF ON OFF ON OFF ON AUTO HAND 0.00 - 10.00 0.00 - 10.00 0 - 256 AUTO HAND UNITS - - vdc vdc - (continued next page) 60 ATH74-525.2 CONTROLS SYSTEM MANUAL G. Service Sub Menu Parameters (continued) SCREEN NAME SCREEN # PARAMETER DESCRIPTION FACTORY VALUE Condenser Fan Modulation CCT2 (As the expansion board analog outputs have been listed under "Inputs/ Outputs" section, Only the Cond Fan Mod CCT2 value has been detailed for the expansion board.) Freeze Stat (As the expansion board digital inputs have been listed under "Inputs/ Outputs" section, only the Freeze Stat has been detailed for the expansion board.) F5 F6 to F9 pCOe Number: Mode: Puts the output into manual mode Manual Value: Sets the Manual Value for this output (only has an affect when the output is in manual control, item above is HAND). Output: If Manual Control is AUTO it is the actual value of the output. If Manual Control is HAND it is the value of Manual Value. pCOe Number: Manual Control DI "X": Puts the input into manual mode Manual Position: Sets the Manual Value for this input (only has an affect when the input is in manual control, item above is HAND). Input Status: If Manual Control is AUTO it is the actual status of the input. If Manual Control is HAND it is the status of the Manual Position. i. pAD Config. Actual Value AUTO Actual Value Actual Value Actual Value AUTO Actual Value Actual Value pAD n°01 Actual Value Plan Address 4 pAD Configuration PC1 Firmware Version Actual Value HW Options Actual Value pAD n°01 Actual Value pAD Configuration Large Display (Change what appears on the thermostat) PC2 Temp Small Display (Change what appears on the thermostat) Hum pAD Configuration Set Point Limits pAD Configuration Key Functions Temperature Min: Temperature Max: PC3 Humidity Min: Humidity Max: Key 1: Key 2: Key 3: PC4 Key 4: Key 5: 60.0°F 90.0°F 0% 100% 1 = ON/OFF 9 = ALARM 3 = HUM 4 = NIGHT/SLEEP 0 = DISABLE Key 6: 6 = TEMP RANGE 0 - 256 AUTO HAND 0.00 - 100.0 0.00 - 100.0 0 - 256 AUTO HAND CLOSED OPEN CLOSED OPEN 0 - 256 None (Temp Only) Humid (Humidity probe installed) - NA T.Set Temp H.Set Hum Time T.Set Temp H.Set Hum 45 - 100°F 60 - 100°F 0 - 100% 0 - 100% 0 = DISABLE 1 = ON/OFF 2 = MODE 3 = HUM 4 = NIGHT/SLEEP 5=CLOCK 6 = TMEP 7 = PROG 8 = FAN 9 = ALARM UNITS - % % - - - - - - °F °F % % - (continued next page) ATH74-525.2 61 CONTROLS SYSTEM MANUAL G. Service Sub Menu Parameters (continued) SCREEN NAME SCREEN # PARAMETER DESCRIPTION FACTORY VALUE j. ERV Config. En. Bypass Damper: YES ERV Configuration E1 Bypass Offset: Bypass Lockout OA Temp <: Bypass Lockout Differential: -10.0 30.0 5.0 Rotation Detection: ERV Wheel Configuration E2 Cleaning Rotation Delay: Duration: OFF 20 5 Preheater Enable: NO ERV Preheater ERV Wheel Defrost (Screen Visible when Preheater is set to NO) ERV Wheel Temperature Check ERV Wheel Cooling Control ERV Wheel Cooling Control ERV Wheel Dehum Control ERV Wheel Dehum Control ERV Wheel Alarm Times Set Point: E3 Mode: Calculated Setpoint: Calculation Differential: OA Setpoint: OA Setpoint Differential: E4 Defrost Cyc Time: Defrost Off Time: Defrost Bmp Time: Delay: E5 Duration: RA Enthalpy: OA Enthalpy: E6 Wheel ON Offset: OA BTU Turns Wheel On RA Enthalpy: OA Enthalpy: E7 Wheel OFF Offset: OA BTU Turns Wheel OFF RA Humidity Ratio: OA Humidity Ratio: E8 Wheel ON Offset: OA Humidity Ratio Turn Wheen ON: RA Humidity Ratio: OA Humidity Ratio: E9 Wheel OFF Offset: OA Humidity Ratio Turn Wheen OFF: Exh Fan Warning: Exh Fan Shutdown: Wheel Warning: E10 Wheel Shutdown: Wheel Pressure: OA / Exh Filters MANUAL ON/OFF Actual Value 0.5 20.0 2.0 30 60 6 60 4 Actual Value Actual Value 3.0 Actual Value Actual Value Actual Value 2.0 Actual Value Actual Value Actual Value 10 Actual Value Actual Value Actual Value 0 Actual Value 30 180 100 180 120 120 RANGE NO YES -30.0 - 30.0 0.0 - 150.0 2.0 - 10.0 OFF ON 0 - 999 0 - 999 NO YES CALCULATED MANUAL ON/OFF PWM 0 - 10.0 0.0 - 40 0.0 - 40 0 - 99 0 - 99 0 - 99 0 - 180 0 - 9 - 0.0 - 10.0 - 0.0 - 10.0 - 0 - 20 - 0 to 20 - 0 - 999 0 - 999 0 - 999 0 - 999 0 - 999 0 - 999 UNITS % °F °F (m)inutes (s)econds - - °F °F °F °F (m)inutes (s)econds (s)econds (m)inutes (m)inutes btu btu btu btu btu btu btu btu Gr/lb Gr/lb Gr/lb Gr/lb Gr/lb Gr/lb Gr/lb Gr/lb (s)econds (s)econds (s)econds (s)econds (s)econds (s)econds 62 ATH74-525.2 CONTROLS SYSTEM MANUAL H. Manufacturer Sub Menu Parameters The Manufacturer sub menu is for factory setup of the unit and is not accessible without contacting the factory for guidance. THE FOLLOWING SECTIONS APPLY ONLY TO UNITS EQUIPPED WITH ENERGY RECOVERY (MODEL DIGIT 7= B OR E). FOR ALL OTHER UNITS, PROCEED TO PAGE 68. Main Status Screen (ERV UNITS) The Main Status Screen for ERV equipped units is displayed when the display is changed to address 2 as described in the "F. Board Switch Sub Menu Parameters" section. Once this screen is displayed, the user can navigate up and down through the list of Main Status Screen Parameters by using the UP or DOWN buttons. These screens are described in further detail in the next section. Note that the main unit controller will always show as Unit: 01. If the unit is also equipped with an ERV module, it has its own controller, which is Unit: 02. The keypad at the main controller or the remote key pad can be used to change the Main Status Screen to display either Unit 01 or 02. To change the controller being displayed, press the ENTER + UP buttons. If you are viewing the main controller display, pressing those buttons will switch to displaying the ERV controller. Pressing those buttons again will revert back to displaying the main controller. Main Status Screen Parameters (ERV UNITS) The following table describes the menu parameters: SCREEN NAME SCREEN # PARAMETER DESCRIPTION Unit: Entering Temperature: ERV - Entering Humidity Status: (Off/On) (continued next page) FACTORY VALUE 2 Actual Value Actual Value Actual Value RANGE - - UNIT ON ERV DOOR OPEN OFF by pLAN UNITS °F %rh - ATH74-525.2 63 CONTROLS SYSTEM MANUAL Service Sub Menu Parameters (ERV UNITS) The Service menu for units equipped with energy recovery allows the user to access several sub-menus regarding controller information, controller overrides, and I/O manual management. Certain screens within the Service Sub Menus require a password for access. Refer to the section titled "Password Protection" for additional guidance. SCREEN NAME Digital Inputs Analog Inputs Relay Outputs Analog Outputs ERV Information System (ERV) SCREEN # ID1 PARAMETER DESCRIPTION A. Input/Output Exhaust Air filter FACTORY VALUE DI1 ID2 Wheel Pressure Drop DI2 ID3 Outdoor Air Filter DI3 ID4 Exhaust fan Status DI4 ID5 ERV Door Switch DI5 B1 Entering Humidity B1 B2 Entering Temperature B2 NO1 OA Bypass Damper 1 NO2 Wheel Enable 2 NO3 Preheater Enable 3 NO4 Y1 Y2 A1 A2 X1 Exhaust Fan Enable Wheel Speed Exhaust Fan Speed B. Service / a. Information Code (Name of Program) Ver. (Software Version) & Date (Release Date) Bios Version & Date Boot Version & Date pCO Type Total FLASH RAM Built to In Type T Memory Writes Main Cycle: Cycle Time B. Service / b. Working Hours Run Hours Number of starts 4 Y1 Y2 Actual Value Actual Value Actual Value Actual Value pCOXS Actual Value Actual Value Actual Value Actual Value Actual Value Actual Value Actual Value Actual Value RANGE Open Closed Open Closed Open Closed Open Closed Open Closed Actual Value Actual Value OFF ON OFF ON OFF ON OFF ON 0.0 - 10.0 0.0 - 10.0 UNITS %rh °F RPM RPM - - - MM/DD/YY - MM/DD/YY - MM/DD/YY - - - Kb - Kb - - - - - Cycles/s - ms 0 to 350,000 0 to 350,000 (h)ours - (continued next page) 64 ATH74-525.2 CONTROLS SYSTEM MANUAL Service Sub Menu Parameters (ERV UNITS) (continued) SCREEN NAME Manual Override SCREEN # MN1 PARAMETER DESCRIPTION FACTORY VALUE B. Service / c. Manual Management Time: 30 Manual DI 1 (Puts the input into manual mode) OFF Manual Position Sets the Manual Value for this input (only has an affect when the input is in Manual Control, - Exhaust Air Filter MN2 item above is ON). DI 1 Status If Manual Control is OFF it is the actual status of the input. If Manual Control is ON it is the status of the Manual Position. Manual DI 2 (Puts the input into manual mode) Actual Value OFF Wheel Pressure Drop MN3 Manual Position Sets the Manual Value for this input (only has an affect when the input is in Manual Control, item above is ON). DI 2 Status If Manual Control is OFF it is the actual status of the input. If Manual Control is ON it is the status of the Manual Position. Manual DI 3 (Puts the input into manual mode) Actual Value OFF Manual Position Sets the Manual Value for this input (only has an affect when the input is in Manual Control, - Outdoor Air Filter MN4 item above is ON). DI 3 Status If Manual Control is OFF it is the actual status of the input. If Manual Control is ON it is the status of the Manual Position. Manual DI 4 (Puts the input into manual mode) Actual Value OFF Manual Position Sets the Manual Value for this input (only has an affect when the input is in Manual Control, - Exhaust Fan Status MN5 item above is ON). DI 4 Status If Manual Control is OFF it is the actual status of the input. If Manual Control is ON it is the status of the Manual Position. Manual DI 5 (Puts the input into manual mode) Actual Value OFF Manual Position Sets the Manual Value for this input (only has an affect when the input is in Manual Control, - ERV Door Switch MN6 item above is ON). DI 5 Status If Manual Control is OFF it is the actual status of the input. If Manual Control is ON it is the status of the Manual Position. Actual Value (continued next page) ATH74-525.2 RANGE 30 - 500 OFF ON CLOSED OPEN CLOSED OPEN OFF ON CLOSED OPEN CLOSED OPEN OFF ON CLOSED OPEN CLOSED OPEN OFF ON CLOSED OPEN CLOSED OPEN OFF ON CLOSED OPEN CLOSED OPEN UNITS (m)inutes - - - - - - 65 CONTROLS SYSTEM MANUAL Service Sub Menu Parameters (ERV UNITS) (continued) SCREEN NAME SCREEN # PARAMETER DESCRIPTION Manual Control B01 (Puts the input into manual mode) Entering Humidity MN7 Manual Position Set the Manual Value for this input (only has an affect when the input is in manual control, item above is ON). Value If Manual Control is OFF it is the actual value of the Sensor. If Manual Control is ON it is the value of the Manual Position. Manual Control B02 (Puts the input into manual mode) Entering Temperature MN8 Manual Position Set the Manual Value for this input (only has an affect when the input is in manual control, item above is ON). Value If Manual Control is OFF it is the actual value of the Sensor. If Manual Control is ON it is the value of the Manual Position. Manual Relay 1 (Puts the output into manual mode) OA Bypass Damper MN9 Manual Position Set the Manual Value for this output (only has an affect when the output is in manual control, item above is ON). Relay 1 Status If Manual Control is OFF it is the actual status of the output. If Manual Control is ON it is the status of the Manual Position. Manual Relay 2 (Puts the output into manual mode) Wheel Enable MN10 Manual Position Set the Manual Value for this output (only has an affect when the output is in manual control, item above is ON). Relay 2 Status If Manual Control is OFF it is the actual status of the output. If Manual Control is ON it is the status of the Manual Position. Manual Relay 3 (Puts the output into manual mode) Preheater Enable MN11 Manual Position Set the Manual Value for this output (only has an affect when the output is in manual control, item above is ON). Relay 3 Status If Manual Control is OFF it is the actual status of the output. If Manual Control is ON it is the status of the Manual Position. FACTORY VALUE OFF - Actual Value OFF - Actual Value OFF - Actual Value OFF - Actual Value OFF - Actual Value RANGE OFF ON 0 - 100 0 - 100 OFF ON -40.0 - 140.0 0 - 100 OFF ON OFF ON OFF ON OFF ON OFF ON OFF ON OFF ON OFF ON OFF ON UNITS - %rh %rh °F °F - - - - (continued next page) 66 ATH74-525.2 CONTROLS SYSTEM MANUAL Service Sub Menu Parameters (ERV UNITS) (continued) SCREEN NAME SCREEN # PARAMETER DESCRIPTION Manual Relay 4 (Puts the output into manual mode) Exhaust Fan Enable MN12 Manual Position Set the Manual Value for this output (only has an affect when the output is in manual control, item above is ON). Relay 4 Status If Manual Control is OFF it is the actual status of the output. If Manual Control is ON it is the status of the Manual Position. Mode Puts the output into manual mode Wheel Speed MN13 Manual Value Set the Manual Value for this output (only has an affect when the output is in manual control, item above is HAND). Output If Manual Control is AUTO it is the actual value of the output. If Manual Control is HAND it is the value of the Manual Position. Mode Puts the output into manual mode Exhaust Fan Speed MN14 Manual Value Set the Manual Value for this output (only has an affect when the output is in manual control, item above is HAND). Output If Manual Control is AUTO it is the actual value of the output. If Manual Control is HAND it is the value of the Manual Position. FACTORY VALUE OFF - Actual Value AUTO - Actual Value AUTO - Actual Value RANGE OFF ON OFF ON OFF ON AUTO HAND 0.00 - 10.00 0.00 - 10.00 AUTO HAND 0.00 - 10.00 0.00 - 10.00 UNITS - vdc vdc - vdc vdc ATH74-525.2 67 CONTROLS SYSTEM MANUAL Typical BMS System Variables - Analog Variable Description Variable Name Supply Air Temperature Supply_Temp_BMS Space Temperature pAD_Temp1_BMS Outside Air Temperature OA_Temp_BMS Outside Air Humidity OA_Hum_BMS Off Wheel Temperature Off_Wheel_Temp_BMS Off Wheel Humidity Off_Wheel_Hum_BMS Return Air Temperature RA_Temp_BMS Return Air Humidity RA_Hum_BMS OA & RA Mixed Temperature Mixed_Temp_BMS Mixed Air Humidity MA_Hum_BMS Temperature Off the Evaporator Coil Evap_Off_Temp_BMS Building Pressure Build_Press_BMS Duct Static Pressure Static_Pressure_BMS Temperature reading by serial probe 1 Temperature reading by serial probe 2 Temperature reading by serial probe 3 Temperature reading by serial probe 4 Serial_Probe_Temp_1_BMS Serial_Probe_Temp_2_BMS Serial_Probe_Temp_3_BMS Serial_Probe_Temp_4_BMS Humidity reading by serial probe 1 Serial_Probe_Hum_1_BMS Humidity reading by serial probe 2 Serial_Probe_Hum_2_BMS Humidity reading by serial probe 3 Serial_Probe_Hum_3_BMS Humidity reading by serial probe 4 Serial_Probe_Hum_4_BMS blank nu_bms_A_22 Actual Supply Air Temp. Setpoint SA_Setp_BMS Space Cooling Occupied Temperature Setpoint pAD_Setp_Temp_occ_BMS Space Heating Setpoint Offset Space_Heat_Offset_BMS Actual Occupied Space Heating Setpoint space_ht_sp_occ_BMS space cooling differential space_cl_diff_occ_BMS Space Heating Differential space_ht_diff_occ_BMS Occupied - Supply Air Cooling Setpoint space_cl_sa_sp_occ_BMS Neutral Air Temperature Setpoint NA_Setp_BMS Occupied - Supply Air Heating Setpoint space_ht_sa_sp_occ_BMS Unoccupied - Space Cooling Setpoint space_cl_sp_unocc_BMS Unoccupied - Spcae Heating Setpoint space_ht_sp_unocc_BMS space cooling differential space_cl_diff_unocc_BMS Space Heating Differential space_ht_diff_unocc_BMS Supply Air Cooling Setpoint Unoccupied Supply Air Heating Setpoint Unoccupied space_cl_sa_sp_unocc_BMS space_ht_sa_sp_unocc_BMS blank nu_bms_A_38 pAD Wall Stat Minimum allowed Temp setpoint adjustment pAD Wall Stat Maximum allowed Temp setpoint adjustment pAD_SetMin_Temp_BMS pAD_SetMax_Temp_BMS blank nu_bms_A_41 55F (0-100) SA_Reset_Heat_High_BMS 70F (50-100) SA_Reset_Heat_Low_Cool_High_ BMS 78F (50-100) SA_Reset_Cool_Low_BMS Read/ Write R R R R R R R R R R R R R R Data Type A A A A A A A A A A A A A BACNet Lon Name AV1 AV2 AV3 AV4 AV5 AV6 AV7 AV8 AV9 AV10 AV11 AV12 AV13 Supply_Temp pAD_Temp OA_Temp OA_Hum Off_Wheel_Tem Off_Wheel_Hum Mixed_Temp Evap_Off_Temp Buildin_Press Duct_Press SNVT # Direction 105 out 105 out 105 out 81 out 105 out 81 out - - - - 105 out - - 105 out 8 out 8 out A AV14 - - - R A AV15 - - - R A AV16 - - - R A AV17 - - - R A AV18 - - - R A AV19 - - - R A AV20 - - - R A AV21 - - - R A AV22 - - - R A AV23 SA_Setpoint 105 out R/W A AV24 pAD_Setp_Temp 105 in/out R/W A AV25 - - - R A AV26 - - - R/W A AV27 - R/W A AV28 - - - - - R/W A AV29 - - - R/W A AV30 NA_Setpoint 105 in/out R/W A AV31 - - - R/W A AV32 - R/W A AV33 - R/W A AV34 - R/W A AV35 - - - - - - - - - R/W A AV36 - - - R/W A AV37 - R A AV38 - R/W A AV39 - - - - - - - R/W A AV40 - R A AV41 - R/W A AV42 - R/W A AV43 - R/W A AV44 - - - - - - - - - - - (continued next page) 68 ATH74-525.2 CONTROLS SYSTEM MANUAL Typical BMS System Variables - Analog (continued) Variable Description Variable Name 70F (50-100) OA_Reset_Heat_Low_BMS 85F (50-100) OA_Reset_Heat_High_BMS 30F (0-100) OA_Reset_Cool_Low_BMS 60F (50-100) OA_Reset_Cool_High_BMS blank nu_bms_A_49 Outdoor Dewpoint Setpoint OA_Dp_Sp_BMS Mixed Air Dewpoint Setpoint MA_Dp_Sp_BMS Unoccupied Dehum. Dewpoint Setpoint Un_Dehum_DP_SP_BMS Dewpoint differential Dewpoint_Diff_BMS Unoccupied Dehum Dew Point Un_Dehum_DP_Diff_BMS blank nu_bms_A_55 Offset to which unit will exit Fan Only SA_Vent_Mode_Heating_Offset_ and enter Heating based on SA Temp BMS Offset to which unit will exit Econ and SA_Vent_Mode_Cooling_Offset_ enter Cooling based on SA Temp BMS SA Heating Changeover Temperature SA_Vent_Mode_Heating_CO_Temp_ BMS SA Cooling Changeover Temperature SA_Vent_Mode_Cooling_CO_Temp_ BMS blank nu_bms_A_60 Current capacity of C1 (Digital Scroll Compressor) Digital_Capacity_Cur Liquid Line Pressure Circuit 1 LL_Press_CCT1_BMS Suction Pressure Circuit 1 Evap_Press_CCT1_BMS Liquid Line Pressure Circuit 2 LL_Press_CCT2_BMS Suction Pressure Circuit 2 Evap_Press_CCT2_BMS Discharge Line Temperature Discharge_Temp_BMS Refrigeration Circuit 1 - Superheat Superheat_CCT1_BMS Refrigeration Circuit 1 - Subcool Subcool_CCT1_BMS Refrigeration Circuit 2 - Superheat Superheat_CCT2_BMS Refrigeration Circuit 2 - Subcool Subcool_CCT2_BMS Suction Line Temperature - From Driver Probe S2 Suction Line Temperature - From Driver Probe S2 Suction_Temp_CCT1_BMS Suction_Temp_CCT2_BMS Supply Fan Speed Adjust Supply_Fan_BMS Exhaust Fan Speed Adjust Exhaust_Fan_BMS blank nu_bms_A_75 Power Monitor. Voltage L1 - L2 Voltage_L1_L2_MSK Power Monitor. Voltage L2 - L3 Voltage_L2_L3_MSK Power Monitor. Voltage L3 - L1 Voltage_L3_L1_MSK Power Monitor. Line 1 Current Current_1_BMS Power Monitor. Line 2 Current Current_2_BMS Power Monitor. Line 3 Current Current_3_BMS Power Monitor. Mains Frequency Frequency_W Read/ Write R/W R/W R/W R/W R R/W R/W R/W R/W R/W R R/W R/W R R/W R R R R R R R R R R R R R R/W R/W R R R R R R R R Data Type A A A A A A A BACNet Lon Name SNVT # Direction AV45 - - AV46 - - AV47 - - AV48 - - AV49 - - AV50 OA_Dewpt_Setp 105 AV51 MA_Dewpt_Setp 105 in/out in/out A AV52 - - - A AV53 Dewpoint_Diff 147 in/out A AV54 - - - A AV55 - - - A AV56 - - - A AV57 - - - A AV58 - - - A AV59 - A AV60 - A AV61 - A AV62 - A AV63 - A AV64 - A AV65 - A AV66 - A AV67 - A AV68 - A AV69 - A AV70 - A AV71 - - - - - - - - - - - - - - - - - - - - - - - - - - - A AV72 - - - A AV73 Sup_Fan_Mod 81 in A AV74 Exh_Fan_Mod 81 in A AV75 - - - A AV76 - - - A AV77 - - - A AV78 - - - A AV79 - - - A AV80 - - - A AV81 - - - A AV82 - - - (continued next page) ATH74-525.2 69 CONTROLS SYSTEM MANUAL Typical BMS System Variables - Integer Variable Description Variable Name Unit Status Unit_Status Occupied Mode Occupied_disp Current Mode of Operation Unit_Mode Temperature Lockouts Mechanical_Temp_Lockouts Number of compressors ON Comp_Status_BMS Supply Fan Modulation Supply_Fan_mod_disp Exhaust Fan Modulation Ex_Fan_mod_disp ERV Exhaust Fan Modulation ERV_Ex_Fan_mod_disp Condenser Fan Modulation CCT1 Cond_Fan_mod_disp_CCT1 Condenser Fan Modulation CCT2 Cond_Fan_mod_disp_CCT2 ERV Wheel Modulation Wheel_mod_disp blank nu_bms_I_12 Outside Air Damper Position BMS OA_Damp_pos_BMS Outside Air Damper Position OA_Damper Return Air Damper Position RA_Damper Outside Air Minimum Open Position OA_Damp_min_pos_BMS Outside Air Maximum Open Position OA_Damp_max_pos_BMS blank nu_bms_I_18 Cooling Demand Cooling_Demand_disp Heat Demand Heating_Demand_disp Dehumidification Demand Dehum_Demand_disp Hot Gas Reheat Modulation HGRH_mod_disp Gas or Electric Heat Modulation Heat_mod_disp 20kw Supplementary Electric Heat Modulation Aux_Heat_mod_disp blank nu_bms_I_25 Space Humidity pAD_Hum Minimum allowable Humidity setpoint on the wall stat pAD_SetMin_Hum Maximum allowable Humidity setpoint on the wall stat pAD_SetMax_Hum Space Humidity Setpoint pAD_Setp_Humid Space Unoccupied Dehum Humidity Setpoint Un_Dehum_Space_Hum_SP Space CO2 Level CO2 Space CO2 Setpoint CO2_Setp_BMS Expansion Valve CCT1 percent open EEV_Percent_CCT1 Expansion Valve CCT2 percent open EEV_Percent_CCT2 blank nu_bms_I_35 Power Factor (divide by 1000) Power_Factor_Int System Power Power_BMS System Apparent Power Apparent_Power_BMS System Reactive Power Reactive_Power_BMS blank nu_bms_I_40 Alarm Code Number Variable 1 Alarm_Code_1 Alarm Code Number Variable 2 Alarm_Code_2 Alarm Code Number Variable 3 Alarm_Code_3 Alarm Code Number Variable 4 Alarm_Code_4 Alarm Code Number Variable 5 Alarm_Code_5 Alarm Code Number Variable 6 (Maintenance) Alarm_Code_6 Software Version High BMS_Sw_Ver_H Software Version Low BMS_Sw_Ver_L SPO Number SPO_Number Read/ Write R R R R R R R R R R R R R/W R R R/W R/W R R R R R R R R R R/W Data Type I I I I I I I I I I I I I I I I I I I I I I I BACNet Lon Name SNVT # Direction AV1001 Unit_Status 8 out AV1002 - - - AV1003 Unit_Mode 8 out AV1004 - - - AV1005 Comp_Status 8 out AV1006 Sup_Fan_mod_d 8 out AV1007 Exh_Fan_mod_d 8 out AV1008 - - - AV1009 CF_CCT1_mod_d 8 out AV1010 CF_CCT2_mod_d 8 out AV1011 - - - AV1012 - - - AV1013 OA_Damper_Pos 8 in AV1014 OA_Damper_d 8 out AV1015 - - - AV1016 - - - AV1017 - - - AV1018 - - - AV1019 Coolin_Demand 8 out AV1020 Heatin_Demand 8 out AV1021 Dehum_Demand 8 out AV1022 HGRH_mod_d 8 out AV1023 - - - I AV1024 - - - I AV1025 - I AV1026 pAD_Hum - - 8 out I AV1027 - - - R/W I AV1028 - - R/W I AV1029 pAD_Setp_Hum 8 R/W I AV1030 - - R I AV1031 CO2 8 R/W I AV1032 - - R I AV1033 - - R I AV1034 - - R I AV1035 - - R I AV1036 - - R I AV1037 - - R I AV1038 - - R I AV1039 - - R I AV1040 - - R I AV1041 Alarm_Code_1 8 R I AV1042 Alarm_Code_2 8 R I AV1043 Alarm_Code_3 8 R I AV1044 Alarm_Code_4 8 R I AV1045 Alarm_Code_5 8 R I AV1046 Alarm_Code_6 8 R I AV1047 - - R I AV1048 - - R I AV1049 - - - in/out - out - out out out out out out - (continued next page) 70 ATH74-525.2 CONTROLS SYSTEM MANUAL Typical BMS System Variables - Integer (continued) Variable Description Current day Current month Current year Current hour Current minute Variable Name CURRENT_DAY CURRENT_MONTH CURRENT_YEAR CURRENT_HOUR CURRENT_MINUTE Read/ Write R R R R R Data Type I I I I I BACNet AV1080 AV1081 AV1082 AV1083 AV1084 Lon Name - SNVT # Direction - - - - - - - - - - Typical BMS System Variables - Digital Variable Description Variable Name Occupied Mode 0= Unoccupied 1= Occupied Occupied BMS Occupied Command Occupied_BMS Standby Power Active Standby_Power General Alarm Output General_Alarm Manual reset alarm Critical_Alarm Auto reset alarm Non_Critical_Alarm Maintenance Alarm Maint_Alarm Alarm Reset by BMS Command BMS_Reset BMS On-Off Command BMS_OnOff Unit Is In Manual Mode Manual_OnOff Heartbeat signal From BMS heartbeat Standby Power BMS switch Standby_Power_sw_BMS blank nu_bms_D_13 shutdown unit based on alarm inputs unit_shutdown Faulty Supply Sensor Shutdown Alarm Low Supply Air Temperature Shutdown Alarm Supply_Sensor_Alarm Low_SA_SD_Alarm Supply Fan Alarm Supply_Fan_SD Smoke Detector Alarm Unit Shutdown Supply Fan Duct Static Pressure Alarm Smoke_Detector_Shutdown Sup_Fan_DSP_al Duct Static Pressure - Sensor Failure DSP_fail_unit_SD Compressor Alarm Shuts Down Unit DX_Cooling_Alarm_Unit_Shutdown Supply Air High Temp Alarm SA_Hi_Temp_AL Supply Fan Status Switch Supply_Fan_VFD_AL Gas Board Fail - Stage 1 BPP_board_failure_1 Gas Board Fail - Stage 2 BPP_board_failure_2 Hot Water Coil Freeze Protection Switch Freeze_Stat_sw OA Temperature Probe Fault OA_Temp_Fail ERV temp probe failure ERV_OA_Temp_Fail blank nu_bms_D_29 Alarm condition present on DX circuit 1 Circuit_1_Alarm Alarm condition present on DX circuit 2 Circuit_2_Alarm General Alarm present on Valve Driver 1 EVD1_General_Alarm Critical Alarm on Valve Driver 1 EVD1_Critical_Alarm Compressor High Pressure Alarm on Circuit 1 Compressor Low Pressure Alarm Circuit 1 HP_Alarm_CCT1 LP_Alarm_CCT1 Read/ Write R R/W R R R R R R/W R/W R R/W R/W R R R R R R R R R R R R R R R R R R R R R R R Data Type BACNet Lon Name SNVT # Direction D BV1 Occ_Status 95 out D BV2 Occ_Command 95 D BV3 Standby_Power 95 D BV4 General_Al 95 D BV5 - - D BV6 - - D BV7 - - D BV8 AL_Reset_Cmd 95 D BV9 OnOff_Command 95 D BV10 - - D BV11 - - D BV12 Stdby_Pwr_sw 95 D BV13 - - D BV14 - - in/out out out - in/out in/out in/out - D BV15 - - - D BV16 - D BV17 - D BV18 - - - - - - - D BV19 - D BV20 - D BV21 - D BV22 - D BV23 - D BV24 - D BV25 - D BV26 - D BV27 - D BV28 - D BV29 - D BV30 - - - - - - - - - - - - - - - - - - - - - - - - - D BV31 - - - D BV32 - D BV33 - D BV34 - - - - - - - D BV35 - - - (continued next page) ATH74-525.2 71 CONTROLS SYSTEM MANUAL Typical BMS System Variables - Digital (continued) Variable Description Variable Name Condenser Fan Alarm on Circuit 1 General Alarm present on Valve Driver 2 Critical Alarm on Valve Driver 2 Compressor High Pressure Alarm circuit 2 Compressor Low Pressure Alarm Circuit 2 Condenser Fan Alarm on Circuit 2 Condensate Float Switch Alarm blank System DX Cooling Alarm DX locked out due to outside temperature Heating Locked Out Heating locked out due to outside temperature Main Filter Dirty Alarm Supply Fan Door Switch Damper End Switch Supply Fan Airflow Switch Gas Valve 1 Alarm Gas Valve 2 Alarm Exhaust Fan VFD Alarm Exhaust Fan Shutdown Alarm Economizer Fault Detection Alarm Unit On - Off Control Status Supply Fan Speed 2 Status Supply Fan Speed 3 Status blank pAD Thermostat not communicating with controller Serial Probe 1 Offline - Modbus Serial Probe 2 Offline - Modbus Serial Probe 3 Offline - Modbus Serial Probe 4 Offline - Modbus Expansion Valve Driver 1 Offline Expansion Valve Driver 2 Offline pCOe expansion board not communicating with main controller ERV not communicating with main controller Power Meter Offline blank ERV running ERV Exhaust Fan Output On ERV Exhaust Fan Status Switch ERV Wheel Output On ERV Wheel Rotation Alarm ERV Wheel Pressure Drop Alarm ERV Wheel Rotation Status ERV Wheel Shut Down Alarm ERV Outdoor Air Filter Alarm ERV Ehaust Air Filter Alarm ERV Door Switch CF_Alarm_CCT1 EVD2_General_Alarm EVD2_Critical_Alarm HP_Alarm_CCT2 LP_Alarm_CCT2 CF_Alarm_CCT2 CFS_Alarm nu_bms_D_43 DX_Cooling_Alarm DX_temperature_LO Heating_Lockout Heating_temperature_LO Main_Filter_AL Door_sw Damper_End_sw Airflow_sw Gas_Valve1_al Gas_Valve2_al Exhaust_Fan_VFD_AL Exh_Fan_SD Econ_FDD_AL Dig_In_OnOff DI_Sup_Fan_Speed2 DI_Sup_Fan_Speed3 nu_bms_D_60 pAD1_Offline Serial_Probe_1_Offline Serial_Probe_2_Offline Serial_Probe_3_Offline Serial_Probe_4_Offline EVD1_Offline EVD2_Offline pCOe_Offline ERV_Offline EM_Offline nu_bms_D_71 ERV_on ERV_Ex_Fan_out ERV_Ex_Fan_Status ERV_Wheel_on ERV_Wheel_AL ERV_Wheel_Press_AL ERV_Wheel_Status ERV_Wheel_SD ERV_OA_Filter_AL ERV_EX_Filter_AL ERV_Door_sw Read/ Write R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R Data Type D BACNet BV36 D BV37 D BV38 D BV39 Lon Name - SNVT # Direction - - - - - - - - D BV40 - D BV41 - D BV42 - D BV43 - D BV44 - D BV45 - D BV46 - D BV47 - D BV48 - D BV49 - D BV50 - D BV51 - D BV52 - D BV53 - D BV54 - D BV55 - D BV56 - D BV57 - D BV58 - D BV59 - D BV60 - D BV61 - D BV62 - D BV63 - D BV64 - D BV65 - D BV66 - D BV67 - D BV68 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - D BV69 - - - D BV70 - - - D BV71 - - - D BV72 - - - D BV73 - - - D BV74 - - - D BV75 ERV_Wheel_on 95 out D BV76 - - - D BV77 - - - D BV78 - - - D BV79 - - - D BV80 - - - D BV81 - - - D BV82 - - - (continued next page) 72 ATH74-525.2 CONTROLS SYSTEM MANUAL Typical BMS System Variables - Digital (continued) Variable Description Variable Name ERV By-Pass Damper Output On ERV Preheater Output On blank Evaporator Off Temperature Probe Fault Mixed Air Temperature Probe Fault Discharge Line Temperature Probe Fault Return Air Temperature Probe Fault Return Air Humidity Probe Fault Outside Air Humidity Probe Fault ERV Entering Humidity Probe Fault pAD Thermostat Temperature Probe Fault pAD Thermostat Humidity Probe Fault CO2 Probe Fault Building Pressure Probe Fault Duct Pressure Probe Fault Status signal from BPP furnace board fault blank Supply fan on and airflow switch made Compressor 1 Output Compressor 2 Output Compressor 3 Output Compressor 4 Output Exhaust Fan Running Condenser Fan Circuit 1 Output Condenser Fan Circuit 2 Output Outside Air Damper Opening Return Air Damper Opening Hot Gas Reheat Close Off Valve Output for circuit 1 Hot Gas Reheat Stage 2 Output Hot Gas Reheat Close Off Valve Output for circuit 2 Gas Heat or Electric Heat Stage 1 Output Gas Heat or Electric Heat Stage 2 Output Electric Stage 3 or Boost Heat Output Electric Heat Stage 4 Output Auxiliary Electric Heat Output ERV Wheel VFD Status Alarm ERV Exhaust Fan VFD Status Alarm Furnace Lockout Alarm - See Lockout Alarm Code ERV_Bypass_Damp ERV_Preheater_On nu_bms_D_85 Evap_Off_Temp_Fail Mixed_Temp_Fail Disc_Temp_Fail RA_Temp_Fail RA_Hum_Fail OA_Hum_Fail ERV_OA_Hum_Fail pAD1_Temperature_Fail pAD1_Humidity_Fail CO2_Fail Building_Pressure_Fail Static_Pressure_Fail BPP_Status_Signal_Fail nu_bms_D_99 Supply_Fan_On C1_On C2_On C3_On C4_On Exh_Fan_On Cond_Fan_CCT1_On Cond_Fan_CCT2_On OA_Damper_open RA_Damper_open HGRH_CV_CCT1 HGRH_S2 HGRH_CV_CCT2 GH_EH1_On GH_EH2_On EH3_BoostHT_On EH4_On Aux_Heat_On ERM_Wh_VFD_AL ERM_Exh_Fan_VFD_AL General_Furnace_Alarm Read/ Write R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R Data Type D D D BACNet BV83 BV84 BV85 D BV86 D BV87 D BV88 D BV89 D BV90 D BV91 D BV92 D BV93 Lon Name - - - - - - SNVT # Direction - - - - - - - - - - - - - - - - - - - - - - D BV94 - D BV95 - D BV96 - D BV97 - D BV98 - D BV99 - D BV100 - D BV101 - D BV102 - D BV103 - D BV104 - D BV105 - D BV106 - D BV107 - D BV108 - D BV109 - D BV110 - D BV111 - D BV112 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - D BV113 GASorELE_H_on 95 out D BV114 - - - D BV115 - D BV116 - D BV117 - D BV118 - D BV119 - D BV120 - - - - - - - - - - - - - (continued next page) ATH74-525.2 73 CONTROLS SYSTEM MANUAL PAGE INTENTIONALLY LEFT BLANK 74 ATH74-525.2 CONTROLS SYSTEM MANUAL PAGE INTENTIONALLY LEFT BLANK ATH74-525.2 75 As Modine Manufacturing Company has a continuous product improvement program, it reserves the right to change design and specifications without notice. © Modine Manufacturing Company 2021 Modine Manufacturing Company 1500 DeKoven Avenue Racine, WI 53403 Phone: 1.800.828.4328 (HEAT) www.modinehvac.comAdobe InDesign CC 14.0 (Windows) Adobe PDF Library 15.0