INSTALLER’S SYSTEM SETUP GUIDE 2012 Lennox Industries Inc.
Table of Contents Page Technical Description/Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Installation and Setup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . System Settings screen . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Change settings (dealer info, daylight savings, fan circulate) . . . . . . . . . . . Table 1. System settings defaults and ranges . . . . . . . . . . . . . . . . . . .
icomfort Wi-Fi Thermostat − Technical Description and Features The 24VAC icomfort Wi-Fi thermostat (figure 1) is an electronic communicating, color display touchscreen, 7−day programmable thermostat. It stores system parameters and settings in nonvolatile memory (i.e., it retains data when electrical power fails or is turned off). It is designed for 4−wire connection to other communication devices as listed in figure 1.
Installation and Setup IMPORTANT! Make sure the router is capable of, and set to operate in wireless network b" mode. Check router utility program or contact service provider for help. When determining the location for the Wi−Fi thermostat, be sure it is in an area near enough to the homeowner’s Wi−Fi router to ensure good communications signal between the thermostat and the router. (Hint: use a smart phone with Wi−Fi to find and determine signal strength.
Change settings up/down arrows Circulate Fan ON Time Range is 15 to 50 % Default is 35, inc: 1 set−to 45% save If you want to change a setting, use one of the Settings change tools shown in figure 3. (Also, see Set time and date on Page 7.) After changes have been made, use save to store the changed data or cancel to exit the screen and return to the list of settings.
Circulate fan ON time setting Table 1. System setting defaults and range NOTE − If the circulate fan mode is on, a timer is set to measure all the time that the fan is blowing, regardless if it is running to deliver heating or cooling or just for circulation. Circulate" is enabled on the user’s home screen or system settings page. It keeps air circulating from 15% to 50% percent of time.
Set time and date Use the arrows to select Time and Date; press edit (see figure 5) to proceed to the Set current time and date" screen (figure 6). system settings Time and Date Daylight Saving Time Circulate Fan ON Time To adjust a setting, highlight it, then press Edit current value: 9:39 am Aug 15, 2012 System Name Dealer Number Dealer Name edit When Time and Date" screen (figure 6) appears, enter the correct date as follows: Use the left and right arrows to change the month and year.
Use about" screen & access Add or Remove Non−communicating equipment" screen The about" screen shows details of discovered installed equipment. From the system devices" screen, use arrow buttons to scroll to a device; then press the about button. Use the up/down arrows to scroll through and view additional information about the selected device. When finished viewing, press the back button. Press next to advance to the Add or Remove Non−communicating equipment?" screen.
Add or Remove Non−communicating equipment Figure 7 (previous page) shows how to access the Add or Remove Non− communicating equipment" screen. HUMIDITY CONTROL TIPS Adding Non−Communicating Outdoor unit See figure 8 for details for adding/removing an outdoor unit. Adding Humidifier The procedures in figure 9 describe adding a non− communicating humidifier which will be controlled by the icomfort Wi-Fi thermostat through the H" or HUM" terminals on the furnace or air handler.
Add Non−Communicating Outdoor unit To add (or remove) an outdoor unit that is not icomfort −enabled, you must be at the Add or Remove Non−communicating equipment?" screen. Add or Remove Non−communicating equipment? System Devices System 1 1. Press the yes button on this screen (see 1). 2. In the non−communicating device list" screen, use the arrows (2a) to highlight Outdoor Unit Type and press edit (2b). 3.
Add (or Remove) Humidifier (skip if no humidifier is being used) Before adding a humidifier, be sure that: the humidifier is wired to the furnace or air handler control as shown on the Optional Accessories wiring diagram (see Page 61), the entire system is wired, powered up, and the thermostat has detected the system’s installed communicating devices, and you are at the Add or Remove Non−communicating equipment?" screen (see figure 7, Page 8).
Add (or Remove) Humiditrol® or Auxiliary Dehumidifier (skip if no dehumidifying device is being used) NOTE − Adding humidity regulating non−communicating devices may be a 2−step procedure: 1st, the device must be installed (this page; after the dehumidifier is installed, the operation mode defaults to Basic"). 2nd, set Humiditrol® comfort adjust overcooling and the min/max dehumidification setpoints if desired (see Page 16).
Adjust a setting screen (communicating devices) Use arrows to select a device from the system devices" list; then use the about button to view information (shown on Page 8) about communicating devices (information about other devices is not available). Use resetAll button to un−install all non−communicating devices that were added through Add or Remove..." screen and to reset any device settings made through this Adjust a setting..." screen to the factory defaults.
Use the up/down arrows to scroll through the device’s settings. The current setting will be displayed on the right−hand side of the screen (figure 12). For example, current value: disabled. Press edit if you want to modify that setting, or press back to return to the previous screen. Available settings for the devices depend on the installed components. Shown below is an example of enabling and changing the balance point control from default (Disabled) to Enabled.
Adjust a setting... Configure Humidifier (skip if no humidifier is being used or if humidifier is being used and default Basic" humidification mode is desired) System System Air Conditioner Furnace 1a Power (120VAC) Humidifier 1b System edit resetAll Humidification Control Mode 2nd Stage Differential Staged Delay Timers current value: back 2nd Stage Delay Dehumidification Control Mode Humidification Control Mode 2a next Basic 2b Humidification Control Mode Display Only Precision 1.
Adjust a setting...
Adjust a setting... Configure Dehumidification (no dehumidifying device installed) (skip if default Basic" dehumidification mode is desired) System Devices Pre−adjustment REQUIREMENTS: 1st, NO physical dehumidification device has been installed. 2nd, configure the thermostat for dehumidification as follows: 1. In the system devices" list, use the arrows (1a) to highlight System. Press edit (1b). 2. In the System" list, use the arrows (2a) to highlight Dehumidification Control Mode.
Humidification and Dehumidification Modes how they work HUMIDIFICATION modes BASIC & PRECISION These modes allow user control of RH between 15 and 45%. These conditions must be met for either mode to operate: humidification mode has been enabled, and the unit is in HEAT mode, and humidification demand exists (24V present at H), and BASIC mode also requires presence of heating demand [Y for HP heat, or W for gas heat (W may be energized with G de−energized)].
Use the Tests / Diagnostics features NOTE − Test mode lasts for 30 minutes (with the temperature updating every 30 seconds) except for the defrost test, which lasts 30 seconds. Tests feature provides the technician time to manually verify the equipment operation. The tests feature is available after setup has been completed once. After you press next in the final setup screen, the select tests to run" screen (figure 18) will appear. (If you want you may skip tests; press skip tests.
After pressing next after the final test, the Testing finished" screen will appear (figure 20). At this point, use the EXIT button (if you have completed the required setup), or use diagnostics button (to analyze the system), or use equipment button (if you wish to make any changes to device details). setup tests equipment alerts diagnostics Set up Equipment parameters Press equipment to set up equipment parameters and edit details of devices in the system without having to re−run the setup program.
setup tests When finished, press back; equipment parameters screen (figure 21B returns); then press next. Select tests to run screen appears" (Page 19); either run tests as before or press skip tests.
Press done when finished with the information. Select another device to diagnose or use EXIT (to close and go to user Home screen) if finished. setup tests equipment alerts diagnostics The left side of the "system and device alerts" screen shows a list of each communicating device discovered in the system and check boxes for selecting each device. Or, you may use buttons to the right of the System Devices list to select all (or deselect all).
setup tests equipment System Devices System alerts diagnostics setup system and device alerts tests equipment No Alerts Furnace Thermostat select all view active deselect all view cleared back 9:39 am Aug 15, 2012 EXIT 9:39 am Aug 15, 2012 setup tests Figure 25. Cleared alert confirmation equipment alert description active alerts View cleared alerts A history of cleared alerts allows the installer to review cleared alerts. This information can help diagnose problems.
Enable the thermostat’s Wi-Fi feature from the Home screen network security key or passphrase displays information here as keys pressed press any line to edit it network name (SSID) 6 Secure Connection Recommended! none 5.2 security is WPA2 press here to enter network name 5.2 a WPA press here to enter Wi−Fi AP (router) password WPA2 password 6 7 END Make sure the router is capable of, and set to operate in wireless network b" mode.
Registering the icomfort Wi-Fi thermostat From NETWORK SETTINGS screen, you can change to the desired network as shown in figure 28. Enter security key or passphrase. X" back to the WI−FI SETTINGS screen. NOTE − Time from pushing the registration button on the thermostat and receiving the consumer portal register link from your email on your computer is from 5 to 15 minutes. After registration has been completed, any available firmware downloads will immediately start downloading to the thermostat.
Personal Computer account registration for icomfort Wi-Fi server NOTE − This following information is customer setup instructions and is shown here to allow the installer to help walk the customer through the setup process.
Personal Computer Welcome page; Interactive Demo; Online icomfort information; Using Gelaskins Welcome home. Access all the great Wi−Fi enabled features on your icomfort® thermostat from our secure web portal. After signing in, you´ll be able to view your icomfort system settings, adjust the temperature and view reminders and alerts ˘ just as you would on your icomfort Wi-Fi thermostat at home. With a familiar look and settings this simple, you should feel right at home.
Access installer program from Home screen To access the installer program after the unit has been placed in operation and the user home screen is displayed, press the Lennox" logo and hold for 5 seconds (see figure 32). The system will access the installer screens. A message screen stating Qualified Lennox equipment installer warning" screen appears (Figure 33). Press yes to proceed (no returns to the home screen).
Reconfigure a system If any component of the HVAC system has been changed, e.g. replacing an outdoor sensor, reconfiguring the system will be required. To begin reconfiguring a system (after you have accessed the program from the Lennox logo [previous page]), press the setup button (1, figure 34A). The Start system configuration" screen (fig. 34B) will appear. Press start (2, figure 34B) to proceed. The Re−configure confirmation" screen (fig. 34C) will appear.
Stage Delay & Differential Settings (Installer settings) 1st Stage Differential1 Stage 1 differential is used in all thermostats. The default is 1.0°F but can be programmed between 0.5° and 3.0°F in 0.5°F increments. From the equipment button, use the arrows to select 1st Stage Differential. Press edit. Use the up/down arrows to adjust to the desired setting and press save. 2nd Stage Differential (where applicable)2 The default is 1.0°F but can be programmed between 0.5° and 8.0°F in 0.5°F increments.
Smooth Setback Recovery (SSR) SSR is an algorithm designed to smoothly" reach a occupied program schedule setpoint. The algorithm looks 2 hours ahead for the occupied program schedule period’s setpoint. If the occupied setpoint requires the system to turn on (present temperature below the heat setpoint or above the cool setpoint), then SSR will calculate a new setpoint. Once initiated, SSR monitors the change in room temperature and calculates a new setpoint every 30 seconds.
Heat Pump, Dual Fuel and Balance Points IMPORTANT − The Balance Points feature requires that a sensed outdoor temperature is provided to the thermostat. This can be either a connection to Wi−Fi (for local temperature information) or a connection to an outdoor sensor (included in all communicating icomfortt−enabled heat pumps; optional outdoor temperature sensor X2658 for non−communicating heat pumps).
Shut down HP Stg 1...Stg 2 NO T’stat heat demand ? FURN heat lockout Operate HP Stg 1...Stg 2 at or above HBP T’stat heat demand ? YES if outdoor between temperature HBP and LBP is... (See NOTE 2) at or below LBP Operate FURN Stg 1...Stg 2 HP stage(s) operate first; then FURN stage(s) (if needed; see NOTE 1) Operate HP Stg 1...Stg 2 T’stat heat demand ? YES NO Operate FURN YES Stg 1...Stg 2 YES T’stat heat demand ? NO Heat pump lockout Shut down FURN Stg1...
Gas Heat Control Mode THERMOSTAT DEMAND Differential less than 2nd stage NO differential ? Differential less than 3rd stage NO differential ? Differential less than 4th stage NO differential ? YES YES YES Starting firing rate as determined by variable capacity algorithm (35 to 100%) SYSTEM IDLE Differential less than 2nd stage NO differential ? Increase firing rate to calculated 2nd stage firing rate Increase firing rate to calculated 3rd stage firing rate T’stat demand sat− isfied in less than
Variable Capacity Control of Gas Heat Mode (G71MPP and SLP98V) The thermostat includes a feature that provides variable capacity control of the gas heat mode. The purpose of variable capacity control is to keep the room temperature at, or near, the desired setpoint with minimum system cycling.
Load−tracking Variable Capacity FAQs (SLP98V only) Interesting points about the Proportional Integral Algorithm (PIA): What is Load−tracking Variable Capacity? When an SLP98 Furnace is connected to an icomfort Wi−Fi thermostat, the thermostat takes complete charge of the variable capacity staging of the furnace. Load−tracking Variable Capacity is only available with icomfort Wi−Fi thermostats.
Table 3. Adjustable Parameters Table (Installer) Parameter Name: Default Parameter Value Setting Increment Installer entry System (Go to equipment button and scroll to System) NOTE − All of the following changes are made on the stat.
Table 3.
Table 3. Adjustable Parameters Table (Installer) Parameter Name: Default Parameter Value Setting Air Handler (keyboard input screen) Increment Installer entry AIR HANDLER Equipment Name Electric Heating Airflow Low Cooling Airflow High Cooling Airflow nnnn CFM (See Note 3 at end of table) 5CFM NOTE: CFM Default and Values Settings are dependent on the tonnage of the unit 5CFM 5CFM 1: No Delays, Cooling Airflow Profile 1 2: ON: No delays; OFF: 45 sec delay 3: ON: 82%/7.
Table 3. Adjustable Parameters Table (Installer) Parameter Name Default Min. Max. Incr. Dependency Note Installer entry Heating indoor blower OFF delay DIP SW 60 180 10 None DIP switch setting in Non−comm. Heating indoor blower ON delay 45 sec 15 45 5 None 45 sec fixed in Non− Comm. IFC Cooling indoor blower OFF delay 0 sec 0 30 2 Outdoor Unit present Not used on Non Comm. IFC Cooling indoor Blower ON Delay 2 sec 0 10 1 Outdoor Unit present 2 sec fixed in Non− Comm.
Table 3. Adjustable Parameters Table (Installer) Parameter Name Default Min. Max. Incr.
Table 3. Adjustable Parameters Table (Installer) Parameter Name Default Min. Max. Incr.
Table 4.
Table 4.
Table 5. Alert Codes and Troubleshooting Critical alerts are displayed on Home (user) screen, in the Homeowner alert button, and in the Installer alert button. Minor and Moderate alerts are found only in the Installer alert button. Alert Code Priority Alert Text Steps to clear 10 Critical (Stat) The thermostat has found an unknown device on the system. An unknown device is seen on the subnet in or outside of configuration mode. Clear by reconfiguring the system.
Table 5. Alert Codes and Troubleshooting Critical alerts are displayed on Home (user) screen, in the Homeowner alert button, and in the Installer alert button. Minor and Moderate alerts are found only in the Installer alert button. Alert Code Priority Alert Text Steps to clear 34 Critical (Stat) The thermostat does not know the capacity (tonnage) of the (furnace, air−handler or outdoor unit). Please program the correct capacity of the (furnace, air−handler or outdoor unit).
Table 5. Alert Codes and Troubleshooting Critical alerts are displayed on Home (user) screen, in the Homeowner alert button, and in the Installer alert button. Minor and Moderate alerts are found only in the Installer alert button. Alert Code Priority Alert Text Steps to clear 113 Critical (Furnace) The line voltage is too high. Line voltage high (voltage higher than nameplate rating). Provide power voltage within proper range. System resumes normal operation 5 seconds after fault recovered.
Table 5. Alert Codes and Troubleshooting Critical alerts are displayed on Home (user) screen, in the Homeowner alert button, and in the Installer alert button. Minor and Moderate alerts are found only in the Installer alert button. Alert Code Priority Alert Text Steps to clear 180 Critical (Furnace / Air Handler / Outdoor Unit) The thermostat has found a problem with the (furnace, air−handler or outdoor unit) outdoor sensor.
Table 5. Alert Codes and Troubleshooting Critical alerts are displayed on Home (user) screen, in the Homeowner alert button, and in the Installer alert button. Minor and Moderate alerts are found only in the Installer alert button. Alert Code Priority Alert Text Steps to clear 226 Critical (Furnace) The furnace high pressure switch is stuck closed. Check operation of high pressure switch closing during a heat call. Measure operating pressure (inches w.c.).
Table 5. Alert Codes and Troubleshooting Critical alerts are displayed on Home (user) screen, in the Homeowner alert button, and in the Installer alert button. Minor and Moderate alerts are found only in the Installer alert button. Alert Code Priority Alert Text Steps to clear 275 Critical (Furnace) The furnace flame is out of sequence. The system will go into Watchguard mode. Shut off gas. Check for gas valve leak. The alarm/fault will clear on next successful ignition.
Table 5. Alert Codes and Troubleshooting Critical alerts are displayed on Home (user) screen, in the Homeowner alert button, and in the Installer alert button. Minor and Moderate alerts are found only in the Installer alert button. Alert Code Priority Alert Text Steps to clear 345 Critical (Air Handler) The O" relay on the air−handler has failed. Either the pilot relay contacts did not close or the relay coil did not energize. O relay / Stage 1 failed.
Table 5. Alert Codes and Troubleshooting Critical alerts are displayed on Home (user) screen, in the Homeowner alert button, and in the Installer alert button. Minor and Moderate alerts are found only in the Installer alert button. Alert Code Priority Alert Text Steps to clear 354 Critical (Air Handler) There is a problem with the air− handler’s 4th stage electric heat. Either the pilot relay contacts did not close, or the relay coil in the electric heat section did not energize.
Table 5. Alert Codes and Troubleshooting Critical alerts are displayed on Home (user) screen, in the Homeowner alert button, and in the Installer alert button. Minor and Moderate alerts are found only in the Installer alert button. Alert Code Priority Alert Text Steps to clear 407 Critical (Outdoor Unit) The required amount of current is not passing through run current transformer. Required amount of current is not passing through Run current transformer.
Critical alerts are displayed on Home (user) screen, in the Homeowner alert button, and in the Installer alert button. Minor and Moderate alerts are found only in the Installer alert button. Table 5. Alert Codes and Troubleshooting Alert Code Priority Alert Text Steps to clear 418 Moderate (Outdoor Unit) There is a faulty W" output circuit. Faulty W output circuit. 419 Critical (Outdoor Unit) The W" output on the outdoor unit has reported more than 5 errors.
Table 6. Troubleshooting Tips Bold text indicates a button, or text display on the thermostat. No. Issue / Problem Possible Cause 1 − No electric heat operation. − The thermostat system setting does not offer a emerg. heat choice on an HP system. − The thermostat does not offer any heat" choice on an AC system with air handler with electric heat.
Table 6. Troubleshooting Tips Bold text indicates a button, or text display on the thermostat. No. Issue / Problem Possible Cause Corrective Action / Comments 6 High Balance Point and Low Balance Point are not listed as a menu item to adjust the setpoint on the thermostat of the heat pump system. Balance Point Control must be enabled to display as the High Balance Point and Low Balance Point in the menu and provide the ability for the installer to adjust the setpoint.
Table 6. Troubleshooting Tips No. Issue / Problem Bold text indicates a button, or text display on the thermostat. Possible Cause Corrective Action / Comments 12 Determine the actual Software version of the thermostat or one of the icomfort unit controls. icomfort software is stored in the control and can be retrieved.
Table 6. Troubleshooting Tips No. Issue / Problem Bold text indicates a button, or text display on the thermostat. Possible Cause Corrective Action / Comments 18 During the cooling mode the displayed air volume on the indoor control is substantially lower than expected. The system may be following the cooling ramping" profile or may be in the dehumidification mode". − During the default cooling ramping profile the blower will run for 7.5 minutes at 82% of the cooling air volume.
Wiring Diagrams icomfort Communicating System Wiring DAS NOTE − The discharge air sensor is intended to be mounted downstream of the furnace heat exchanger and air conditioning coil. It must be placed in free airflow, where other accessories (such as humidifiers, UV lights, etc.) will not interfere with its accuracy. Wiring distance between the IFC or AHC and the discharge air sensor should not exceed 10ft when wired with 18−gauge thermostat wire.
Wiring Diagrams icomfort Communicating Indoor/non−Communicating Outdoor System Wiring icomfort by Lennox AIR HANDLER (AHC) OPTIONAL DISCHARGE AIR SENSOR (SEE DAS NOTE Page 59) icomfort Wi-Fi THERMOSTAT RSBus Maximum total length of all connections on the RSBus is limited to 1500ft. Wire gauge of RSBus wire is 18.
Optional Accessories Wiring for use with any icomfort by Lennox system icomfort by Lennox SLP98 & G71MPP FURNACE (IFC) OR AIR HANDLER (AHC) HCWH−01 DEHUMIDIFIER CONTROL For SL290 & EL296, see HUMIDIFIER diagram below (bottom right) HVAC EQUIPMENT RSBus HVAC EQUIP icomfort Wi-Fi THERMOSTAT Rf Cf Gs Gh W DH NC DISCHARGE AIR SENSOR (REQUIRED FOR EVEN HEAT) (SEE DAS NOTE Page 59) NOTE: icomfort Wi-Fi THERMOSTAT SENSES HUMIDITY & CONTROLS 24V H" OUTPUT (& 120V H" OUTPUT) TO CYCLE HUMIDIFIER BASED O
Optional Accessories Wiring for use with any icomfort by Lennox system icomfort by Lennox SLP98 & G71MPP FURNACE (IFC) OR AIR HANDLER (AHC) LVCS Ventilation Control System icomfort by Lennox Furnace or Air Handler icomfort by Lennox Outdoor Air Conditioning or Heat Pump icomfort Wi-Fi Thermostat icomfort by Lennox 2−STAGE FURNACE DS CUT R−DS W914 R (POWER COMPANY INTERRUPTION SYSTEMS ARE WIRED SAME AS OVERFLOW SWITCH) RSBus Standard 1 or 2 stage AC or HP unit icomfort by Lennox Furnace or A
Thermostat wire termination in communicating system Outdoor Unit Indoor Unit Controller icomfort Wi-Fi thermostat Single wire to terminal C Single wire to terminal C Unused wires Unused wires Communicating systems using the icomfort Wi-Fi thermostat require four thermostat wires between the thermostat and the furnace/air handler control and four wires between the outdoor unit and the furnace/air handler control.
HEAT 24 VAC SMART 1 6 9 5 8 4 1 2 3 4 P8 85 2 NORM + R−O HEAT PUMP Y1−Y2 2−STAGE COMPR DS O BLOWER ONLY CFM ADJUST 7 AUTO EVENHEAT DELAY 3 DH HUMIDIFICATION 1 2 3 4 COM − L H 1 2 3 4 DH R C XFMR LINE L2 Y1 L1 G L2 L1 Y2 G A92 INTEGRATED CONTROL INDOOR BLOWER POWER W3 W2 EARTH W1 INDOOR BLOWER SIGNAL 4 5 6 1 2 3 R I+ I− C OUTDOOR UNIT R I + I − C THERMOSTAT PUSHBUTTON Page 64 C COOL 130 XFMR 24V I+ I− LINK 506920−01 09/12 HUMIDITROL 1 2 3 4 11 5 3 AM
Setting up typical systems FURNACE & AIR CONDITIONING UNIT icomfort −enabled furnace & icomfort −enabled air conditioner An icomfort−enabled gas furnace (G71MPP, EL296V, SLP98, SL280) with an icomfort−enabled AC (XC17 or XC21 only) unit. 1. Wiring See Communicating System Wiring diagram on Page 59 and Optional Accessories Wiring (Page 61) for any accessories being installed with the system.
icomfort −enabled furnace & non−communicating air conditioner An icomfort−enabled gas furnace (G71MPP, EL296V, SLP98, SL280) with a conventional non−communicating air conditioner. 1. Wiring See Communicating Indoor/Non−Communicating Outdoor System Wiring diagram on Page 59 and Optional Accessories Wiring (Page 61) for any accessories being installed with the system.
Setting up typical systems FURNACE & HEAT PUMP (DUAL FUEL) icomfort −enabled Furnace & icomfort −enabled HP unit (Dual fuel) Dual fuel system using an icomfort−enabled gas furnace (G71MPP, EL296V, SLP98, SL280) with an icomfort−enabled heat pump (XP17 or XP21 only). 1. Wiring see Communicating System Wiring diagram on Page 59 and Optional Accessories Wiring (Page 61) for any accessories being installed with the system.
Setting up typical systems AIR HANDLER & AIR CONDITIONER icomfort −enabled Air Handler & icomfort −enabled Air Conditioner An icomfort−enabled air handler (CBX32MV or CBX40UHV) with an icomfort−enabled air conditioner (XC17 or XC21 only). NOTE − IMPORTANT! Be sure to configure the air handler control so that heat strips (if used) information will be detected by the icomfort thermostat. This must be done prior to powering up the system and thermostat. 1.
icomfort enabled Air Handler & conventional non−communicating Air Conditioner An icomfort air handler (CBX32MV or CBX40UHV) with a conventional non− communicating AC unit. NOTE − IMPORTANT! Be sure to set up the air handler control for heat strips (if used) prior to powering up the system and thermostat. 1. Configure air handler control (AHC) for auxiliary heat strips if used. 2.
Setting up typical systems AIR HANDLER & HEAT PUMP UNITS icomfort −enabled Air Handler & icomfort −enabled Heat Pump unit An icomfort air handler (CBX32MV or CBX40UHV) with an icomfort−enabled heat pump (XP17 or XP21 only) unit. NOTE − IMPORTANT! Be sure to set up the air handler control for heat strips (if used) prior to powering up the system and thermostat. 1. Configure air handler control (AHC) for auxiliary heat strips if used. 2.
icomfort −enabled Air Handler & conventional non−communicating Heat Pump unit An icomfort air handler (CBX32MV or CBX40UHV) with a conventional non− communicating heat pump unit. NOTE − IMPORTANT! Be sure to set up the air handler control for heat strips (if used) prior to powering up the system and thermostat. 1. Configure air handler control (AHC) for auxiliary heat strips if used. 2.
Table 7. Replacement Controls The following kits have been set up for replacement of the icomfort −enabled controls. Please note that control kits are unit− and revision−specific. icomfort −Enabled Unit Replacement Kit Catalog No. Control Part No. G71MPP (rev. 03 or later) 65W69 605341−01 SLP98 (rev. 01 or later) 73W45 102813−02 SL280 (rev. 02 or later) 83W88 103130−01 EL296 (rev. 01 or later) 83W88 103130−01 CBX40UHV (rev. 02 or later) AND CBX32MV (rev.
