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INSTALLATION GUIDE
524 Control Installation and User Guide
Installer Settings
Menu Item: Equipment Type
Setting
Range
Description
Outdoor Unit Type
None, [AC], HP
Select the type of outdoor unit installed
Indoor Unit Type
[Gas/Oil], Electric, Hydronic
Select the type of indoor unit installed
Hydronic Type
[With Fan], Without Fan
Select the type of hydronic heat operation. Hydro Air selection interlocks
the blower during an active call for indoor heat. Wet Heat selection
disables indoor fan operation on an active call for indoor heat.
Indoor Heat Stages
[1], 2
Select the number of indoor heat stages
Energize Reversing Valve* [With Cool], With Heat
Select whether Reversing Valve is energized in cooling or heating mode
Once all selections have been made, press the Done button to exit and return to Menu. Press Next to navigate to the next setting.
* This setting is typically set to With Cool for systems from Trane, American Standard, Carrier, Lennox and Goodman. It is typically set to
With Heat for Rheem/Ruud systems and some systems manufactured in China. If your system delivers heated air when it should deliver
cool air, or vice versa, this setting may be reversed.
These settings should only be modified by knowledgeable and experienced individuals familiar with HVAC systems
Menu Item: Equipment Settings
Setting
Range
Description
Compressor Stage 1 MRT
[3] - 9 Minutes
Select the minimum runtime (MRT) of stage 1 compressor operation
Compressor MOT
[5] - 9 minutes
Select the minimum offtime (MOT) for compressor operation
Indoor Heat Stage 1 MRT
[3] - 9 Minutes
Select the minimum runtime (MRT) of stage 1 indoor heat
Indoor Heat Stage 2 MRT
[3] - 9 Minutes
Select the minimum runtime (MRT) of stage 2 indoor heat
Indoor Heat MOT
[5] - 9 minutes
Select the minimum offtime (MOT) for indoor heat operation
Once all selections have been made, press the Done button to exit and return to Menu. Press Next to navigate to the next setting.
Menu Item: Sensor Settings
Setting
Range
Description
Sensor Calibration
*-7 - +7 Degrees [0]
Calibrate the indoor temperature sensor (do not attempt to calibrate the
indoor temperature within the 1st hour upon power-up)
Once all selections have been made, press the Done button to exit and return to Menu. Press Next to navigate to the next setting.
Installer Settings allow the user to configure the equipment settings and customize how the control operates. To access Installer Settings
press the Menu button, then press and hold Next for approximately 5 seconds, until Service is displayed. Now press Select until “Installer
Settings” is displayed. Press Select again to enter Installer Settings menu. The default setting will be shown in brackets. After each
selection press Done to save changes.
