Dimplex North America 00008 CONNEX Smart Thermostat User Manual CST 240 052417 indd

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Document ID	3465462
Application ID	dFduXKQbxHDOdpkL2XaiFQ==
Document Description	User Manual
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Document Type	User Manual
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Date Submitted	2017-07-14 00:00:00
Date Available	2017-07-14 00:00:00
Creation Date	2017-05-29 12:25:39
Producing Software	Adobe PDF Library 10.0.1
Document Lastmod	2017-05-29 12:28:34
Document Title	CST-240_052417.indd
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CONNEX™ Smart Thermostat
CST-240
7215100100 R00
Table of Contents
Welcome............................................................................. 3
Features............................................................................. 4
Specifications..................................................................... 4
Selecting the Heater Type.................................................. 5
Installation.......................................................................... 6
Control Panel (User Interface)............................................ 8
Operation.......................................................................... 12
Limited Warranty.............................................................. 14
SAVE THESE INSTRUCTIONS
IMPORTANT SAFETY INFORMATION: Always read this manual first
before attempting to install or use this device. For your safety, always comply
with all warning and safety instructions contained in this manual to prevent
personal injury or property damage.
To view the full line of Dimplex products, please visit www.dimplex.com
CST-240
www.dimplex.com
Welcome
Thank you for choosing to purchase a CONNEX™ Smart
Thermostat from Dimplex. The CST-240 is an easy to
install and easy to use unit that works with any convection
or fan forced heater. It provides precise temperature
control and will lower your energy costs by up to 10%
versus a mechanical thermostat.
Please carefully read and save these instructions.
NO NEED TO RETURN TO THE STORE
Questions with operation or assembly? Require Parts Information?
Product Under Manufacturer’s Warranty?
Contact us at:  www.dimplex.com/customer_support
For Troubleshooting and Technical Support
OR

Toll-Free 1-888-DIMPLEX (1-888-346-7539)
Monday to Friday 8:00 a.m. to 4:30 p.m. EST
In order to better serve you, please have your model and serial numbers
ready or register your product online before calling (see above).
CST-240
www.dimplex.com
FCC Compliance
CAUTION: This unit has been tested and found to comply with the limits for Class
B digital device, pursuant to part 15 of the FCC Rules. These limits are designed to provide
reasonable protection against harmful interference in a residential installation. This unit
generates, uses and can radiate radio frequency energy and, if not installed and used in
accordance with the instructions, may cause harmful interference to radio or television
reception, which can be determined by turning the unit OFF and ON, the user is encouraged
to try to correct the interference by one or more of the following measures:
• Reorient or relocate the receiving antenna.
• Increase the separation between the unit and the receiver.
• Connect the unit into an outlet on a circuit different from the receiver.
• Consult the dealer or an experienced radio/TV technician for help.
This unit complies with Part 15 of the FCC Rules. Operation is subject to the following two
conditions: (1) This unit may not cause harmful interference, and (2) this unit must accept
any interference received, including interference that may cause undesired operation.
FCC CAUTION: Any changes or modifications not expressly approved by the
party responsible for compliance could void the user’s authority to operate this equipment.
This device complies with Industry Canada licence-exempt RSS standard(s). Operation is
subject to the following two conditions: (1) this device may not cause interference, and (2)
this device must accept any interference, including interference that may cause undesired
operation of the device.
IMPORTANT NOTE: This equipment complies with RF exposure limits set forth for an
uncontrolled environment.This equipment shall be installed and operated with a minimum
separation distance of 7.87 in (20 cm) between the transmitter’s radiating structure(s) and
the body of the user or nearby persons.
CST-240
www.dimplex.com
Features
The CONNEX™ Smart Thermostat CST-240 works with all new
and existing electric heaters without built-in thermostats. It works
with new and old heaters, either fan-forced or convection.
The CST-240 changes your heater into a smart heater. It makes
any heater work with optional CONNEX™ controllers to provide
wireless and WIFI connectivity.
Specifications
Dimensions: 4-4/8” W x 5-1/8” H x 1-1/2” D
(11.7cm W x 13.0cm H x 3.6cm D)
Weight: 0.5lb (0.23kg)
Electrical: 240V, 4000W, ~60Hz, copper conductor only
Device Type: Line voltage room thermostat, Type 1 Action
Functional Temperatures: -20° C (-4° F) to 80° C (176° F)
Operating Termperatures: 5° C (41° F) to 30° C (86° F)
Selecting the Heating Type
The CST-240 is capable of controlling both convection and fan
forced heaters. The thermostat has been optimized for each type
of heater but is factory pre-set for convection.
CST-240
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Convection
For this type of heater, the CST-240 will control convectors to
within 0.5°C (1°F) by operating the heaters every minute. It is not
recommended to operate fan forced heaters in this mode due to
additional stress placed on the fan motor.
To change the type of heater Convection:
1. Press sequence
, +, −
HOME/AWAY, SYNC, +, −
2. Checkmark () icon and CO displays.
Fan Forced
For this type of heater, the CST-240 will control the fan forced
heaters to a slightly larger temperature differential by operating
the heaters approximately every 10 minutes.
To change the type of heater to Fan Forced:
1. Press sequence
HOME/AWAY, SYNC, +, −
, +, −
2. Checkmark () icon and FF displays.
CST-240
www.dimplex.com
CAUTION: Read all instructions and warnings carefully before starting
installation. Failure to follow these instructions may result in a possible electric
shock or fire hazard and will void the warranty.
WARNING: The installation of the thermostat must comply with the
applicable Local and/or National Electrical Codes and utility requirements.
Entrust the installation to duly qualified personnel where required by law.
WARNING: Make sure all wiring connections to the thermostat are
correct and tight to prevent electrical shorts. Use the appropriate wire to meet
local and national electrical codes for rated power consumption.
Installation
Select a location that is:
• 1.5m (5ft) above the floor level
• on a section of wall without air ducts or pipes
• in an area with good airflow to best sense the average room
temperature
Avoid a location that is:
• close to a window or other external opening
• directly exposed to a source of heat, such as sunlight or
heater exhaust
CST-240
www.dimplex.com
The CST-240 mounts directly into a standard 2 x 4 inch vertical
electrical outlet box.
1. Disconnect power supply to prevent electrical shock or
product damage.
2. Run line voltage wiring to the thermostat location.
3. Remove the thermostat cover.
4. Connect the black LINE lead on the thermostat to the L1
line from the power supply panel.
5. Connect the red LOAD lead from the thermostat to the line
lead on the heater.
6. Connect the white L2 lead from the thermostat to L2 line
from the power supply panel and the heater.
CST-240
www.dimplex.com
7. Secure the ground wire to the ground screw in the outlet
box.
8. Make sure all electrical connections are tight.
9. Insert wires and connectors into the outlet box taking care
not to damage the sensing device or wiring.
10. Mount the thermostat base into the wall box and secure
using the two supplied screws.
Note: Do not over tighten mounting screws.
11. Replace thermostat cover.
Control Panel (User Interface)
The CONNEX™ Smart Thermostat CST-240 has a user-friendly,
easy-to-use interface. It consists of four capacitive touch buttons
and an LCD screen. You will use the buttons and LCD to control
and direct the CST-240.
You have the option of using other products (sold separately),
such as CONNEX™ Multi-Zone Programmable Controller (CXMPC) or the CONNEX™ WIFI Multi-Zone Controller (CX-WIFI) to
control the CST-240 wirelessly.
CST-240
www.dimplex.com
The LCD is backlite whenever a button is pressed. The backlight
shuts off after 10 seconds. During regular operation, the LCD
displays the ambient room temperature.
LCD screen
decrease
temperature
button
increase
temperature
button
home/away
button
CST-240
synchronization
button
10
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LCD Screen
The large digits (e.g., 25.5) display the room temperature
in ºC or ºF to within 0.º5C (1ºF). It will display Lo if
the temperature drops below 0ºC (32ºF), and Hi if the
temperature rises above 36ºC (97ºF).
The small digits (e.g., 100%) display the room’s relative
humidity.
The house icon indicates the unit is in Home mode. The
person exiting icon indicates the unit is in Away mode.
The lock icon indicates the unit is in Lock mode and
unable to be changed using the buttons.
The and X marks provide feedback of either a
successful or unsuccessful action.
Buttons
Press the Home/Away button to toggle between modes.
In Home mode, the heater Home set point displays when
either the + or − button is pressed. In Away mode, the
heater Away set point displays when either the + or −
button is pressed.
CST-240
11
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To sync a CONNEX™ wireless controller to your CST-240
thermostat instead of a CONNEX™ heater, place your
controller in sync mode and follow the below instructions
Press the synchronization button for 5 seconds to enter
the CST-240 into a pairing mode with a CONNEX™
wireless controller. While the unit is in sync mode, the
displays for 30 seconds and it will be able to receive an
RF message and update its sync information. If the unit
has not successfully synced in 30 seconds, the X symbol
displays.
−
Press the + (up) button to increase the temperature set
point by 0.5°C (1°F) up to a maximum of 30°C (86°F).
Press the − (down) button to decrease the temperature
set point by 0.5°C (1°F) up to a minimum of 5°C (41°F).
Press the + and − buttons at the same time to toggle the
display and set point information between °C and °F.
This function disables all buttons until the child
lock is disabled
Press a sequence of +, −, +. −, +, − to enable the
child lock and disable all button functions. The
CST-240 will still respond to wireless controller
commands.
Press a sequence of −, +. −, +, −, + to disable the
child lock.
CST-240
12
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Operation
The CONNEX™ Smart Thermostat is easy to use and easy to
program. Simply touch the + or − buttons to raise or lower the
temperature.
In addition, you can program the heater to maintain one
temperature when you are at Home and a different temperature
for when you are Away. Simply press the Home/Away button
when entering or existing the room to switch between the preselected set points.
Set the at Home Temperature
1. Make sure child lock is off (lock icon does not show on the
LCD).
2. Press the Home button . The Home icon and the set
temperature on the LCD should illuminate.
3. Press the + or − button to increase or decrease the set
temperature.
CST-240
13
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Set the Away Temperature
1. Make sure child lock is off (lock icon does not show on the
LCD).
2. Press the Away button . The Away icon and the set
temperature on the LCD should illuminate.
3. Press the + or − button to increase or decrease the set
temperature.
Wireless Connection
The CST-240 has wireless (RF) communication capability. The
unit can receive wireless signals from existing CONNEX™
heating control products. See www.dimplex.com for information
about the CONNEX™ Single-Zone and Multi-Zone Programmable
Controllers.
CST-240
14
www.dimplex.com
Limited Warranty
All Dimplex Thermostats are warranted against defects in workmanship and
materials for three years from date of sale. This warranty does not apply
to damage from accident, misuse, or alteration, nor where the connected
voltage is more that 5% above the nameplate voltage, nor to equipment
improperly installed or wired or maintained in violation of the instruction
sheet.
This limited warranty applies only to purchases made in Canada or USA
except for Yukon Territory, Nunavut, or Northwest Territories , Hawaii, or
Alaska.
This limited warranty applies to the original purchaser of the product
only and is not transferable. No other written or oral warranty applies.
No employee, agent, dealer or other person is authorized to give any
warranties on behalf of Dimplex.
The customer shall be responsible for all costs incurred in the removal or
reinstallation and shipping of the product for repairs. Within the limitations
of this warranty, inoperative units shall be returned to the nearest Dimplex
authorized service center, and we shall repair or replace, at our option, at
no charge to you with return freight paid be Dimplex. It is agreed that such
repair or replacement is the exclusive remedy available from Dimplex and
that DIMPLEX IS NOT RESPONSIBLE FOR DAMAGES OF ANY KIND,
INCLUDING INCIDENTAL AND CONSEQUENTIAL DAMAGE. Some
States do not allow the exclusion or limitation of consequential damages,
so the above exclusion or limitation may not apply to you. This warranty
gives you specific legal rights and you may also have other rights which
vary from state to state.
CST-240
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