Instruction/ maintenance manual of the product Touch Screen Programmable Communicating Thermostat Lennox International Inc.
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*2P1109* *P506052-01* 2009 Lennox Industries Inc. Dallas, T exas, USA INST ALLER’S SYSTEM SETUP GUIDE icomfort t Thermost at T ouch Screen Programmable Communicating Thermost at CONTROLS 506052.
506052−01 1 1/09 Page 2 T able of Contents icomfort Thermostat T erms and Acronyms 3 . . . . . . . . . . . . . . . . . icomfort T echnical Description 4 . . . . . . . . . . . . . . . . . . . . . . . . . . . icomfort Thermostat Features 5 .
icomfort T ouch Screen 7−Day Programmable Thermostat Page 3 icomfort t Thermostat T erms and Acronyms Subnet Controller (SC): (part of the communicating thermostat) Local device that controls the system. Subnet: A part of the communication network that contains devices to control one functional HV AC system.
506052−01 1 1/09 Page 4 icomfort t T echnical Description The 24V AC icomfort thermostat stores system parameters and set- tings in a nonvolatile memory (i.
icomfort T ouch Screen 7−Day Programmable Thermostat Page 5 icomfort t Thermostat Features Thermost at T ype Electronic communicating, color display touch screen, 7−day program- mable.
506052−01 1 1/09 Page 6 Installer setup − Page 1 of 8 After power is applied to the thermostat for the first time, the processor checks the system for installed communicating devices, the System discovery" screen (figure 2) is displayed on the thermostat; followed by th e Use this thermostat" screen (figure 3).
icomfort T ouch Screen 7−Day Programmable Thermostat Page 7 Installer setup − Page 2 of 8 System settings (figure 5) appear first. As you use the up/down arrows to scroll through the settings, the right hand side will show the current value, for example, Current V alue: (35% ) shows the current setting of the Circulate Fan ON time .
506052−01 1 1/09 Page 8 Installer setup − Page 3 of 8 Setting time and date U s e the arrows to select Time and Date; press edit (see figure 7). Press next to proceed to the Set current time and date" screen (figure 8). test s setup HELP system settings to adjust a setting, highlight it, then press edit.
icomfort T ouch Screen 7−Day Programmable Thermostat Page 9 Installer setup − Page 4 of 8 Add/remove /modify non−communicating devices From this screen (figure 9), use the yes button to access a list of non− communicating devices for installing or removing.
506052−01 1 1/09 Page 10 Installer setup − Page 5 of 8 Modify communicating device settings Use this screen (figure 1 2) to access communicating devices’ settings.
icomfort T ouch Screen 7−Day Programmable Thermostat Page 1 1 Installer setup − Page 6 of 8 If you select reset and then confirm , the highlighted device will be reset to its factory setting. Y ou would see a screen similar to figure 14, but ref- erencing only the selected device.
506052−01 1 1/09 Page 12 Installer setup − Page 7 of 8 Indoor air quality controls An example of installing UV Light is shown in figure 10, Page 9.
icomfort T ouch Screen 7−Day Programmable Thermostat Page 13 Installer setup − Page 8 of 8 setup tests equipment HELP Equipment Name Filter 1 Timer Selection .
506052−01 1 1/09 Page 14 T ests − Page 1 of 1 The test s feature is not available until after setup has been completed once. After you press next step in the final setup screen, the Select tests to run" screen (figure 18) appears.
icomfort T ouch Screen 7−Day Programmable Thermostat Page 15 T ests − Page 1 of 1 After the tests have been started, the screen will describe which test is running (see figure 20).
506052−01 1 1/09 Page 16 Equipment − Page 1 of 1 This feature allows the installer to edit details of devices in the system without having to re−run the setup program.
icomfort T ouch Screen 7−Day Programmable Thermostat Page 17 Diagnostics − Page 1 of 1 If you need to run diagnostics to analyze the system, press the diagnos - tics tab. The Select device to run diagnostics" screen (figure 24) will open.
506052−01 1 1/09 Page 18 Alerts − Page 1 of 4 As described earlier on Page 6, alerts may pop up on the screen during setup. T o view alerts otherwise, press the alert s tab.
confirm press ’confirm’ to clear the alert, or press ’cancel cancel was action taken? yes no icomfort T ouch Screen 7−Day Programmable Thermostat Page 19 Alerts − Page 2 of 4 Clearing al.
506052−01 1 1/09 Page 20 Alerts − Page 3 of 4 Using custom time" Use Setting custom time" screen (figure 30) to set an exact date and time for the reminder to appear . Press in one of the boxes to highlight it and use the up/down arrows to change the value in that box.
icomfort T ouch Screen 7−Day Programmable Thermostat Page 21 Alerts − Page 4 of 4 V iew cleared alert s A history of cleared alerts allows the installer to review the cleared alerts.
506052−01 1 1/09 Page 22 Access installer program from Home screen − Page 1 of 1 T o access the installer program after the unit has been placed in opera- tion and the user home screen is displayed, press the Lennox" logo and hold for 5 seconds (see figure 35).
icomfort T ouch Screen 7−Day Programmable Thermostat Page 23 Reconfiguring a system − Page 1 of 2 T o begin reconfiguring a system, press the setup tab. Th e S tart system configuration" screen (figure 37) appears; press sta r t to proceed.
506052−01 1 1/09 Page 24 Reconfiguring a system − Page 2 of 2 While reconfiguring , the thermostat will have retained settings from the previous configuration. If a device has been replaced and re−configura- tion has detected its replacement device, it will know the original device is missing and prompt the installer (figure 40).
icomfort T ouch Screen 7−Day Programmable Thermostat Page 25 Edit able Parameters T able (User and Installer) Parameter Name: Default Parameter V alue Setting Increment Inst aller settings T ime.
506052−01 1 1/09 Page 26 Parameter Name: Increment Parameter V alue Setting Default 1st Stage Differential 0.5ºF 0.5 to 3ºF .5ºF 2nd Stage Differential 1.5ºF 0.5 to 8ºF .5ºF 3rd Stage Differential 2.0ºF 0.5 to 8ºF .5ºF 4th Stage Differential 2.
icomfort T ouch Screen 7−Day Programmable Thermostat Page 27 Parameter Name: Increment Parameter V alue Setting Default AIR HANDLER Equipment Name Air Handler (T ypewriter input screen) Electric Heating Airflow nnnn CFM SEE NOTE −.
506052−01 1 1/09 Page 28 Parameter Name V alue Dependency Note Default Min. Max. Incr . FURNACE Heating indoor blower OFF delay DIP SW 60 180 10 None DIP switch setting in Non−comm. Heating indoor blower ON delay 45 15 45 5 None 45 sec fixed in Non−Comm.
icomfort T ouch Screen 7−Day Programmable Thermostat Page 29 Parameter Name Note Dependency V alue Parameter Name Note Dependency Incr . Max. Min.
506052−01 1 1/09 Page 30 Parameter Name: Default Parameter V alue Setting Increment User settings T ime and Date (T ime/date elements screen) Daylight Saving Time Enabled Enabled, Disabled .
icomfort T ouch Screen 7−Day Programmable Thermostat Page 31 Alarm Codes and T roubleshooting Alarm ID Message Name Action required to Clear/Recover 10 Unknown Device Detected − DEVICE2 Reconfigure the system. Press and hold Lennox Logo, press setup tab, press start, and press confirm.
506052−01 1 1/09 Page 32 Alarm Codes and T roubleshooting Alarm ID Action required to Clear/Recover Message Name 125 Control Hardware Problem Hardware problem on the control board. Cycle power on control. Replace if problem prevents service and is persistent.
icomfort T ouch Screen 7−Day Programmable Thermostat Page 33 Alarm Codes and T roubleshooting Alarm ID Action required to Clear/Recover Message Name 241 Flame Out of Sequence − Still Present Shut off gas, check for gas valve leak. 250 Primary Limit Switch Open Check firing rate on furnace, blockage in heater, and air flow .
506052−01 1 1/09 Page 34 Alarm Codes and T roubleshooting Alarm ID Action required to Clear/Recover Message Name 313 Indoor/Outdoor Unit Capacity Mismatch Incorrect indoor/outdoor capacity code selected. Check for proper configuring in installation instructions.
icomfort T ouch Screen 7−Day Programmable Thermostat Page 35 Alarm Codes and T roubleshooting Alarm ID Action required to Clear/Recover Message Name 410 Open Low Pressure Switch Remove any blockages or restrictions from indoor coils and/or fans.
506052−01 1 1/09 Page 36 Wiring Diagrams − Communicating Systems icomfort FURNACE (IFC) OR AIR HANDLER (AHC) icomfort THERMOST A T icomfort OUTDOOR AIR CONDITIONING OR HEA T PUMP UNIT .
icomfort T ouch Screen 7−Day Programmable Thermostat Page 37 Wiring Diagrams − Communicating Indoor/non−Communicating Outdoor Systems icomfort Thermostat icomfort Air Handler S tanda.
506052−01 1 1/09 Page 38 Optional Accessories for use with any icomfort t system NOTE: 24V UV LIGHT APPLICA TIONS Neither icomfort furnace nor icomfort air handler transformer will have adequate V A to power 24V UV light applications. An additional transformer for UV light applications is required.
icomfort T ouch Screen 7−Day Programmable Thermostat Page 39 Optional Accessories for use with any icomfort t system icomfort FURNACE OR AIR HANDLER icomfort FURNACE OR AIR HANDLER icomf.
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