LENNOX Package Units(both Units Combined) Manual L0806704
User Manual: LENNOX LENNOX Package Units(both units combined) Manual LENNOX Package Units(both units combined) Owner's Manual, LENNOX Package Units(both units combined) installation guides
Open the PDF directly: View PDF 
.
Page Count: 8
| Download | |
| Open PDF In Browser | View PDF |
See unit nameplate and address. 504,875M 1/2006 Supersedes for manufacturer 1/2004 LGA/LGC036, 042, 048, 060, 072 (3, 3-1/2, 4, 5, and 6 TONS) LGA/LGC090, 102, 120, 150, (7-1/2, 8-1/2, 10, and 12-1/2 TONS) LGA/LGC156, 180, 210, 240, 300S (13, 15, 17-1/2, 20, and 25 TONS) LGA/LGC248, 30OH, 360 (20, 25, and 30 TONS) ROOFTOP UNITS LGA240 SHOWN _pu READ ALL INSTRUCTIONS IN THIS MANUAL AND RETAIN FOR FUTURE REFERENCE FBR113270 A\tL't F-,R_*_A C j Technical blications Litho U.S.A. @2006 A WARNING US /-18TEO WHAT TO DO IF YOU SMELL GAS: Do not store or use gasoline or other flammable vapors and liquids in the vicinity of this or any other appliance. Installation and service must be performed by a qualified installer, service agency or the gas supplier. 01/06 IIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIII • Do not try to light any appliance. • Extinguish any open flames. • Do not touch any electrical switch; do not use any phone in your building. • Leave the building immediately. • Immediately call your gas supplier from a neighbor's phone. Follow the gas supplier's instructions. • If you cannot reach your gas supplier, call the fire department. 504,875M IIIHII III11111 IIIII IIIII 1111111111 IIIIII CONDENSER FAN HEAT EXCHANGER EVAPORATOR COIL FILTERS ECONOMIZER (OPTIONAL) COMPRESSOR COMBUSTION AIRINDUCER DRAIN GAS VALVE DISCONNECT BURNERS (OPTIONAL) 120V (OPTIONAL) ECONOMIZER BLOWER TB1 DAMPERS (OPTIONAL) CONDENSER COIL DISCONNECT (Factory-installed option) (Factory-installed option) DRAIN COMBUSTION INDUCER BURNERS COMPRESSORS HEAT EXCHANGER TUBES Page 1 GAS VALVE AIR BLOWERS BLOWER MOTOR, CONTROL CONDENSATE DRAIN CONDENSER COILS 120V GFCI OUTLET (Factory-installed option) COMPRESSORS (3COMPRESSORS ON LG_LGC156&180UNITS) BURNERS DISCONNECT (Factory=installed option) HEAT EXCHANGER TUBES COMBUSTION INDUCER AIR CONDENSER ECONOMIZER DAMPERS FILTERS EVAPORATOR COIL (OPTIONAL) BLOWER MOTOR CONDENSATE DRAIN CONDENSER COILS HEAT EXCHANGER TUBES GAS VALVE COMPRESSORS COMBUSTION INDUCER AIR Page 2 BURNERS (-248 AND -300H HAVE 4 COMPRESSORS) FANS ,&CAUTION 1- Keep unit area clear and free of combustible materials, gasolineandotherflammable vaporsand liquids, 2 - Donotobstructairflowto unit, Unitmustreceive an unobstructed flow of combustion and ventilatingair, ,&WARNING `&WARNING ,&WARNING `&WARNING ,&WARNING `&WARNING FOR YOUR SAFETY READ BEFORE LIGHTING AWARNING BEFORE LIGHTING smell all around the furnace area for gas. Be sure to smell next to the roof because some gas is heavier than air and will settle on the roof, Use only your hand to push in or turn the gas control knob, Never use tools, If the knob will not push in or turn by hand, do not try to repair it, call a qualified service technician. Force or attempted repair may result in a fire or explosion, The unit is equipped with an automatic spark ignition system, There is no pilot, In case of a safety shutdown, move thermostat switch to OFF and return the thermostat switch to HEAT, Electromechanical thermostat is shown in figure 1. For logic units and units with electronic temperature controls, shut off the main disconnect and then turn it on to reset the ignition control, Page 3 TYPICAL ELECTROMECHANICAL I 60 15 70 20 HONEYWELL VR8205M SERIES GAS VALVE I //I -//I 50 10 THERMOSTAT INLET _ :::::::::::_T"_ 80 g0 25 80 \\\\'\/\/" IIII"11 II "//// i MANIFOLD ,, !!I PRESTAS RE _ FIGURE 3 ON HEAT OFF WHITE RODGERS 36C76 GAS VALVE COOL FIGURE 1 Placing Unit Into Operation INLET STAGE 2 MANUAL MANIFOLD PRESSURE ADJUSTMENT MANIFOLD PRESSURE PRESSURE SCREW UNDER CAP TAP ;SIDE) ,&WARNING Gas Valve Operation for White Rodgers 36C (figure 4), White Rodgers 36E (figure 2), Honeywell VR8205M (figure 3), and Honeywell VR8205QNR8305Q (figure 5) 1- Set thermostat to lowest setting, FIGURE 4 -- 2- Turn off all electrical power to furnace, 3- This furnace is equipped with an ignition device which automatically lights the burner, Do not try to light the burner by hand, 4- Open or remove the heat section access panel, 5- 36C, VR8205, & VR8305- HONEYWELL VR8205_ HIGH FIRE ADJ__ -- SE_S G"ASVALVE LOW FIRE 1 / ADJ_;÷__ MAN,FOLD/ r,,PRESSURE / / Turn the knob on the gas valve clockwise _1_ to "OFF", Depress 36C knob slightly, Do not force, 36E Turn the knob 180° either way to "OFF", WHITE RODGERS 36E GAS VALVE Gas valve knob is shown in OFF position. / FIGURE 5 6- 8 INLET PRESSURE TAP (SIDE) \ Gas valve knob is shown in OFF position. Wait five (5) minutes to clear out any gas, If you then smell gas, STOP! Immediately call your gas supplier from a neighbor's phone, Follow the gas supplier's instructions, If you do not smell gas, go to the next step. 7- 36C, VR8205, & 8305 Turn the knob on the gas valve counterclockwise 41_ to "ON", Do not force, 36E Turn the knob 180 ° either way to "ON", -1 MANIFOLD PRESSURE TAP (SIDE) 8- Close or replace the heat section access panel. 9- Turn on all electrical power to furnace, 10- Set thermostat to desired setting, FIGURE 2 Page 4 11- Thecombustion air inducerwill start,The burners will lightwithin40seconds, 12- Ifthefurnacedoesnotlightthefirsttime(gaslinenot fullypurged),it willattemptuptotwomoreignitions beforelockingout, 13- If lockoutoccurs,repeatsteps1through10, 14- If thefurnacewill notoperate,followtheinstructions "TurningOffGasto Furnace"andcallyourservice technician or gassupplier. TurningOffGasto Furnace 1- If usinganelectromechanical thermostat, settothe lowestsetting. 2- Beforeperforming anyservice,turnoffallelectrical powerto thefurnace. 3- Openor removetheheatsectionaccesspanel. 4- 36C, VR8205, & VR8305Turn the knob on the gas valve clockwise "OFF". 36E - _ To maintain efficiency and longevity, your equipment must be serviced yearly by a qualified service technician. Failure to provide proof of service can void warranty. A, CAUTION HEAT EXCHANGER ASSEMBLY (036-072) HEAT EXCHANGER T COMBUSTION AIR INDUCER \ to Depress 36C knob slightly. Do not force. BAFFLE Turn the knob 180° either way to "OFF". 5- Close or replace the heat section access panel. A, WARNING FLUE BOX GAS VALVE VENT CONNECTOR FIGURE 6 HEAT EXCHANGER ASSEMBLY (090-360) &WARNING HEAT EXCHANGER TUBE COMBUSTION AIR The primary air is permanently set for normal operation. The flame will be basically blue with some clear yellow streaking in the end d the flame, Inspect the burner flame periodically during the heating season using the inspection port provided on the burner access panel. VENT Annually, before heating season, inspect the combustion air louvers, vent cap, heat exchanger, burners and combustion air inducer for corrosion, deterioration or deposits of debris. Remove any obstructions or blockage. See figures 6 and 7. Page 5 GAS VALVE BURNER FIGURE 7 ServicingFilter TABLE Unitsareequippedwiththe numberof filtersshownin table1,Filtersshouldbecheckedmonthlyandreplaced whennecessary withfiltersoflikekindandsize.Takenote of air flow directionmarkingon filter frame when reinstalling filters,Seefigure8, REMOVE FILTERS MANIFOLD Natural LGA/LGC Unit 2 PRESSURES in.wg. Gas (kPa) Propane (LP) Gas 1st Stg.+ 0.2(+.05) 2nd Stg.+ 0.3 (+.08) 1st Stg.+ 0.2 (+.05) 2nd Stg.+ 0.3 (+.08) 036, 042, 048, 060, 072 Std./High Heat NA 3.5 (0.87) NA 10.5 (2.61 ) 036, 042, 048, 060, 072 Dual Heat 1.9 (0.47) 3.5 (0.87) 5.3 (1.32) 10.5 (2.61) 090 through 360 1.6 (0.40) 3.7 (0.92) 5.5 (1.37) 10.5 (2.61) Burners Clean the burners as follows: _ PULL TO REMOVE FILTERS 2- FIGURE 8 NOTE - Filters must be ULC approved or equivalent for use in Canada. TABLE 1 NUMBER AND SIZE OF FILTER BY UNIT LGA/LGC Unit Qty Open or remove the burner compartment panel, Filter Size - inches (mm) 2 16 X 25 X 2 (406 X 635 X 51) 090,102,120,150 4 18 X 24 X 2 (457 X 610 X 51) 156,180,210,240,300S 6 24 X 24 X 2 (610 X 610 X 51) 248,300H, 12 20X20X2(508X508X51) BURNER BOX ASSEMBLY Lubrication All motors are lubricated lubrication is required, at the factory, No further Blower shaft bearings are prelubricated, For extended bearing life, relubricate at least once every two years with a lithium base grease, such as AIvania 3 (Shell Oil), Chevron BRB2 (Standard Oil) or Regal AFB2 (Texas Oil). Use a hand grease gun for relubrication, Add only ! GAS MANIFOLD FLAME SENSOR enough grease to purge through the bearings so that a bead of grease appears at the seal lip contacts. FIGURE 9 Manifold Pressures Manifold pressures are shown in table 2. Refer to figures 2, 3, 4 and 5 to locate pressure ports. Page 6 access 3_ Remove two screws securing burners to burner support and lift the burners from the orifices. See figure 9. Clean as necessary, Spark gap on ignition electrode must be properly set, Refer to the Heating Adjustment section in the installation instructions. GAS VALVE 036, 042, 048,060,072 360 Turn off the electrical power and the gas supply to the unit. 4-Replace burners and screws securingburner, Replacetheburnercompartment accesspanel, 5- Return the combustion air inducer motor and the vent connector to their original location and secure with retained screws. It is recommended that the 5- Turnon the electrical power and the gas supply to the unit, Follow the operating instructions attached to the unit and use the inspection port in the access panel to check the flame, combustion air inducer gasket be replaced during reassembly. 6- Use a small brush to clean the combustion air inlet louvers on the heat access panel, Combustion Air Inducer A combustion air inducer proving switch checks combustion air inducer operation before allowing power to the gas controller. The gas controller will not operate if the inducer is obstructed, Flue Passageway and Flue Box Under normal operating conditions, the combustion air inducer wheel should be checked and cleaned prior to the heating season. However, it should be examined periodically during the heating season to establish an ideal cleaning schedule, 1- Remove the combustion air inducer assembly as described in the Combustion Air Inducer subsection, 2- Remove the flue box cover. Clean the flue box with a wire brush as required, 3- Clean the tubes with a wire brush, 4- Clean the combustion air inducer as follows: Reassemble the unit. The flue box cover gasket and combustion air inducer gasket should also be replaced during reassembly, 1- Turn off the electrical power and the gas supply to the unit, 2- Disconnect the pressure switch air tubing from the combustion air inducer port, Call a qualified service technician if the unit is inoperative. Before calling, always check the following to be sure service is required: 3- Remove and retain the screws securing the combustion air inducer to the flue box, Remove and 1- Be sure electrical disconnect switches are ON, retain two screws from the bracket supporting the vent connector. See figures 6 and 7, 4- Clean the inducer wheel blades with a small brush and wipe off any dust from the housing, Clean accumulated dust from the front of the flue box cover. 2- Check room thermostat for proper setting, 3- Replace any blown fuses or reset circuit breakers, 4- Gas valve should be ON, 5- Air filters should not be plugged, limiting air flow, 6- Make sure all access panels are in place, When ordering repair parts, include the complete model number and serial number listed on the ETL/C,G,A,/CSA rating plate - e.g. LGA240H2BH 1Y. Gas Heat Section Parts Heat Exchanger Combustion Air Assembly Combustion Air Proving Switch Burner Assembly Burner Manifold Assembly Main Burner Orifices Flame Roll-out Switches Auxiliary Limit Controls Ignition Electrode Assembly Ignition Lead Ignition Sensor Assembly Sensor Lead Combination Gas Valve Limit Controls Cooling Parts Compressors Low Pressure Switch High Pressure Switch Condenser Fan Motors Condenser Fan Blades Compressor 2 Control Panel Compressor 3 and 4 Control Panel Gas 2 Control Panel Condenser Fan Run Capacitors Freezestats Low Ambient Pressure Switch Low Ambient Thermostat Compressor Contactors Circuit Breakers (Opt.) Transformer (Control) Transformer (Contactor) Transformer (CAB) Blower Contactor Condenser Fan Mounting Bracket Fan Grille Indoor Blower Motors Blower Wheel Expansion Valve Distributor Crankcase Heaters Exhaust Fans (Opt.) Electrical Control Parts Main Control Panel Economizer Control Panel (Opt,) Page 7 Limit, Blower Relay Heat Relays Condenser Fan Relays Capacitor CAB Relay CAB Low Ambient Relay Low Amb. Low Pressure Switches Disconnect Switch (Opt,) Blower Motor Overload Relay
Source Exif Data:
File Type : PDF File Type Extension : pdf MIME Type : application/pdf PDF Version : 1.2 Linearized : No Page Count : 8 Page Layout : SinglePage Page Mode : UseNone Producer : Goby Monitor Application version 4, 0, 0, 13 Create Date : Mon Jul 21 04:03:46 2008 Author : Title : Subject :EXIF Metadata provided by EXIF.tools