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DCN: 2012-11-222-1                                                                                                                                             Page 3 

 

Mechanical Settings Screen 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 

 
 
 
 
 

 
 
 
 
INSTALLER SETTINGS 

 
In addition to the HVAC System Setup, there are other settings of the thermostat that can 
be configured.  These settings are intended for use by certified HVAC installation 
technicians and are not intended for user changes. 
 

Installer

 

Settings Menu

 

To access the Installer Settings Menu,  
Press the Menu button on the main thermostat page. 
 
In the 

Main Menu screen

,  

Press and hold the two middle buttons  
until the Installer Settings Menu appears. 
 
 
 
  
 
 
 
 
 
 
 
 
 
 
 

Press and hold two middle buttons to enter 
the Installer Settings screen 

Mechanical Settings 

  

 

Type             Gas/Elec 
Fan Type              Gas 
2nd Stage Heat       N 
2nd Stage Cool       N 

Done 

 
 
 

If HVAC system is a Standard Gas or Electric heat system: 

 

Set the Type: Standard Gas/Electric systems or HP systems 

 

Set the Fan Type: Gas or Electric Heat 

 

Set 2

nd

 Stage Heat: Yes or No (does the system have 2 stage heating) 

 

Set 2

nd

 Stage Cool: Yes or No (does the system have 2 stage cooling) 

 
If HVAC system is a Heatpump system: 

 

Set the Type to Heatpump 

 

Set the C/O Type:  Changeover or reversing valve 

o

 

w/Cool = changeover with Cool (default/typical) 

o

 

w/Heat = changeover with Heat 

 

Set 2

nd

 Stage Heat: Yes or No (does the system have 2 stage heating) 

 

Set Aux Heat: Yes or No (does the system have auxiliary heating – heat strips) 

 

Set 2

nd

 Stage Cool: Yes or No (does the system have 2 stage cooling) 

 

 

Menu Selection 

  

Select 

Thermostat Info 
WiFi Network Status 
WiFi Setup 

Done 

Summary of Contents for CH-THSTAT-W

Page 1: ...THSTAT W and will assist in trouble shooting the installation if needed CAUTION The typical wire colors noted below may be different from your installation Standard HVAC System Wiring Thermostat Term...

Page 2: ...TW45 Ver 02 04 01 WiFi Radio Version 02 30 System Type Standard Fan Type Gas Network Address 1 Status Press the MENU button to go to the main menu screen Scroll down to the Thermostat Info using down...

Page 3: ...Elec Fan Type Gas 2nd Stage Heat N 2nd Stage Cool N Done If HVAC system is a Standard Gas or Electric heat system Set the Type Standard Gas Electric systems or HP systems Set the Fan Type Gas or Elect...

Page 4: ...on a live system Network Settings Submenu Shows WiFi settings Same as in the Main Menu selection See Operations Manual System Settings Submenu Sets the HVAC operational settings below Mechanical Setti...

Page 5: ...at stage 1 heating starts Heating Delta Stage 1 OFF Range 0 to 8 degrees Default 0 Sets the delta from setpoint that stage 1 heating stops Stage 1 turns off at setpoint Delta Stage 1 Heating Delta Sta...

Page 6: ...g cooling cycle can begin Provides compressor short cycle protection Fan Cycler The fan cycler function cycles the HVAC system fan for an ON period followed by an Off period continuously Used to provi...

Page 7: ...1 On 1 8 1 Cool Delta Stage 1 Off 0 8 0 Cool Delta Stage 2 On 1 8 2 Cool Delta Stage 2 Off 0 8 0 Max Heat SP 40 109F 4 42C 90F Min Cool SP 44 113F 6 45C 60F Min Run Time 1 9 min 3 Min Off Time 1 9 mi...

Page 8: ...o Elec for electric heat fan call with heat call 3 2nd Stage Heat Enable second stage heating outputs If you have a single stage heating system leave this set to N If you have a 2 stage heating system...

Page 9: ...the correct system operation For change over with cool systems Orange wire O terminal set C O type to w cool most common and default setting For change over with heat systems Brown wire B terminal se...

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