Product specifications

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The Installer Settings screen is a hidden screen designed for use by qualified installers and service technicians. Do not change any
settings in these screens unless you are a qualified installer or service technician.
Installer Settings
Display Lock N
System Settings
Max Heat SP 90
Min Cool SP 60
Done +-
Changing these settings will affect the operation of the heating/cooling system. To view and edit these settings:
1. Press the MENU button.
2. Press and hold the two middle buttons simultaneously until the Installer Settings menu is displayed.
3. Scroll to the setting you want to change. Press the plus (+) or minus (-) button to adjust the setting.
4. Press the Done button when you are finished.
Setting Range Default Description
Display Lock Y or N N Locks or unlocks the thermostat buttons. When the buttons are
locked, the main menu can still be accessed, but no menu options
may be selected. The Installer Settings hidden button operation is
always operational, allowing Display Lock to be turned off.
System Settings See next page
Max Heat SP 55F to 90F
(12C-32C)
90F (32C) Sets the maximum heating setpoint value. Will not ramp or accept
setpoints higher than this maximum.
Min Cool SP 60F to 99F
(15C-37C)
60F (15C) Sets the minimum cooling setpoint value. Will not ramp or accept
setpoints lower than this minimum.
Minimum Run
Time (MRT)
1- 9 Minutes 3 Sets the minimum run time before a heating/cooling cycle can
turn off to prevent rapid cycling. Thermostat screen will display
Cool ON or Heat ON while the minimum run time is being
enforced.
Minimum Off Time
(MOT)
5-9 Minutes 5 Sets the minimum off time before another heating/cooling
cycle can begin to provide compressor short cycle protection.
Thermostat screen will display WAIT when minimum off time is
being enforced.
T-Sense 1-6 2 Sample rate of temperature sensor
Low Sample Rate = Less sensitive (slower response)
High Sample Rate = More sensitive (faster response)
Fan Cycler 1
Fan ON Time
0-120 minutes 0 (= OFF) The fan cycler function cycles the HVAC system fan for an ON
period followed by an OFF period continuously. Used to provide
minimum air ventilation requirements. While the Fan ON time is
set to a value greater than 0, an additional Cycler FAN mode is
present when pressing FAN button.
Fan Cycler 1
Fan OFF Time
10-120 minutes 10
Remote Sensors IN or OUT IN Used to enable remote temperature sensing, averaging, or for
outdoor temperature setting for display and/or dual fuel restricted
mode.
Dehumidification
Options
See Dehumid Option table
Restore Defaults n/a n/a Sets all of the thermostat settings back to the factory defaults.
1 NOTE: CONTINUOUS fan mode during COOLING operation may not be appropriate in humid climates. If the indoor air exceeds 60%
relative humidity or simply feels uncomfortably humid, it is recommended that the fan only be used in the AUTO mode.
Installer Settings