White Rodgers 37-7237A instruction

INSTALLER/CONFIGURATION MENU

1 & 2)Keypad Lockout – This menu selection will display “Lk” and “OFF” (default, keypad not locked out). The and are used to toggle the selection between “OFF” and “L” (keypad locked out). When the keypad lockout selection is enabled “L”, and the MENU button is pressed again, the display will indicate the number “0” (default, still disabled) in the time digits. The

and are used to set the combination number from 0 to 999. If a combination of 0 is selected and the MENU button is pressed, the menu will be exited and keypad will not be locked. If 1 to 999 is selected and the MENU button is pressed, the combination is stored into memory and the menu is exited. The “Loc” will display designat- ing keypad locked with a valid combination. The SYSTEM button will operate for 10 seconds after the menu mode is exited to allow the user to change the mode from OFF to the desired SYSTEM mode.

While the keypad is locked out, a press of MENU will en- ter the configuration menu. The first menu item displayed

is the combination code “0”. The or keys are used to set the combination unlock number from 0 to

999. If the unlock number matches exactly with the com- bination lock number stored in memory when the MENU button is pressed, the keypad is unlocked and the “Loc” is removed. If the unlock number does not match when the MENU button is pressed, the combination returns to “0” for another attempt to set the unlock code. To exit the menu, without unlocking the keypad, press RUN SCHED.

To reset the combination code and unlock the keypad if the code is forgotten, see troubleshooting section.

3)This control can be configured for:

MS 2 – Multi-Stage System (no heat pump)

HP 1 – Heat Pump with one stage of compressor HP 2 – Heat Pump with two stage compressor or two compressor system, Gas or Electric backup

SS 1 – Single Stage System

4)GAS or Electric (ELE) fan operation. If the heating sys- tem requires the thermostat to energize the fan, select ELE. Select GAS if the heating system energizes the fan on a call for heat.

5)Select Cool Savings™ value – Selects the amount of adjustment for the Cool Savings™ feature in Cool mode with 1 (1°) being the least amount of adjustment and 6 (6°) being the most amount of adjustment. Default value is 0 which disables this feature. Selecting a value greater than 0 will display Cool Savings on the screen and enable the key for Cool Savings feature. Cool Sav- ings is an optional energy saving feature that can reduce your cooling costs. It is based on the principal that lower indoor humidity makes a slightly higher temperature feel more comfortable. Cool Savings operates during periods of high demand which normally occur on the hottest summer days when a cooling system may run for hours to reach the thermostat setting. Long cooling run times also lower the indoor humidity. Cool Savings, very slowly, adjusts the setpoint temperature to make the setpoint closer to the displayed room temperature, to a maximum of the number of degrees you select. Adjust- ing the setpoint temperature over a long cooling run time allows the system to reach your set temperature and turn off. The room temperature will actually be higher than the thermostat displays but the reduction in humidity will allow comfort at the slightly higher temperature.

To turn this feature on in the Cool mode press Cool Savings. The display will show “Save” next to the setpoint temperature. When Cool Savings is making ad- justments to the room temperature display “Save” will be flashing and the displayed room temperature may vary within the adjustment range you selected.

If “Save” is not displayed and this feature is OFF, no change will occur when the cooling system is continu- ously running during periods of high demand.

6, 7, 8 & 9) Cycle Rate Selection – The factory default set- ting for Heat and Cool modes, SS1, MS2, is medium cycle (ME). For Heat Pump, HP1, HP2, the default set- ting is medium (ME). For Emer (Aux) the default setting

is fast cycle (FA). To change cycle rate, press the or key.

Cycle rate differentials for different settings are:

	Fast	Medium Slow
MODE	FA	ME	SL
Heat (SS1, MS2)	0.4°F	0.6°F	1.7°F
Cool (SS1, MS2)	0.9°F	1.2°F	1.7°F
Heat Pump (HP1, HP2)	0.9°F	1.2°F	1.7°F
Emer (HP1, HP2)	0.6°F	-	1.7°F

10)Select Compressor Lockout CL OFF or ON – Select- ing CL ON will cause the thermostat to wait 5 minutes between cooling cycles. This is intended to help protect the compressor from short cycling. Some newer com- pressors already have a time delay built in and do not require this feature. Your compressor manufacturer can tell you if the lockout feature is already present in their system. When the thermostat compressor time delay oc- curs, it will flash the setpoint for up to five minutes.

11)System Mode Configuration – This thermostat is configured for Heat and Cool (SYSTEM switch with Cool, Off, Heat) default. It can also be configured for Heat and Cool with Auto changeover (Heat, Auto, Cool, Off), Heat only with fan (Off, Heat), Heat only without fan, Auto only (Auto, Off), and Cool only (Cool, Off).

12)Select Backlight Display – The display backlight im- proves display contrast in low lighting conditions. When the “C” terminal is powered, selecting backlight CdL ON will keep the light on continuously. Select backlight OFF will turn the light on momentarily after any key is pressed. When the “C” terminal is not powered, the light will be on momentarily after any key is pressed no matter whether the backlight is selected ON or OFF.

13)Select Temperature Display Adjustment 4 LO to 4 HI

– Allows you to adjust the room temperature display up to 4° higher or lower. Your thermostat was accurately cali- brated at the factory, but you have the option to change the display temperature to match your previous thermo- stat. The current or adjusted room temperature will be displayed.

14)Select F° or C° Readout – Changes the display readout to Celsius or Fahrenheit as required.

15 & 16) Temperature Limit Range Heat or Cool – This selection sets the maximum HEAT (13) or minimum COOL (14) temperature for the setpoint range. Select the

limit temperature using the or keys. In the Run Schedule mode, the setpoint temperature will not adjust past the limit temperature selected. When the limit tem- perature is reached, trying to raise or lower the setpoint past the limit will cause “L” to be displayed in the times digits for about 6 seconds. This feature is not available on earlier models.

17 & 18) Select Fast Second Stage ON or OFF – Heat pump or Multi-stage only, in the run mode, with the fast Heat feature enabled (FA Heat On), if the Heat setpoint temperature is manually raised by 3°F (2°C) or more

above the actual temperature using the second stage will energize immediately. With FA OFF, second stage will not energize until the setpoint temperature is 1°F or more above actual temperature for more than ten minutes. The Fast Cool feature (FA Cool) provides the same controls when the setpoint temperature is lowered.

37-7237A specifications

The White Rodgers 37-7237A is a sophisticated thermostat designed to bring comfort and efficiency to residential heating and cooling systems. It is known for its reliability, user-friendly interface, and a variety of features that cater to the needs of modern homeowners.

One of the standout features of the 37-7237A is its digital display, which provides clear and precise temperature readings, making it easy to monitor and adjust settings. The thermostat is equipped with a simple, intuitive interface that allows for straightforward navigation through its various functions, ensuring that users can easily customize their heating and cooling preferences.

The 37-7237A supports both heat-only and cool-only systems, providing flexibility for different types of HVAC setups. It is compatible with conventional systems as well as heat pumps, making it a versatile choice for numerous household configurations. Additionally, the thermostat offers programmable capabilities, allowing users to set different temperatures for various times of the day. This feature promotes energy efficiency and helps reduce utility costs, as homeowners can lower their heating or cooling when they are not home.

Technologically, the 37-7237A incorporates advanced features such as adaptive intelligent recovery. This technology learns how long it takes to heat or cool a space to the desired temperature and begins to adjust the system's operation accordingly. As a result, the thermostat ensures that the home maintains optimal comfort without unnecessary energy expenditure.

The 37-7237A also includes a built-in temperature sensor that ensures accurate readings, helping to maintain the desired indoor climate. This consistency allows for a stable and comfortable environment, while also protecting the equipment from potential damage caused by extreme temperature fluctuations.

Another benefit of the White Rodgers 37-7237A is its energy-saving capabilities. By utilizing a programmable schedule, users can avoid heating or cooling their homes when they are not occupied. This feature can lead to significant energy savings over time.

In summary, the White Rodgers 37-7237A offers a combination of user-friendly design, advanced technology, and energy efficiency features that make it an excellent choice for homeowners seeking to enhance their indoor comfort. With its versatile compatibility and smart programming capabilities, it's an investment that pays off in both comfort and cost savings.