Configuring the system
33CONNECTSTAT43 ©2022 Carrier.
Installation Guide All rights reserved.
14
To configure advanced SYSTEM SETTINGS
You can only adjust the SYSTEM SETTINGS screens and parameters on the thermostat itself. You cannot access them on a
mobile device.
You can select FACTORY DEFAULTS to restore all default settings to the original values.
Parameter Name/Description
HEAT EQUIP TYPE — The equipment heating type. If you select GAS HEAT and the
COMPRESSOR TYPE for HP, then the defined DUAL FUEL thermostat operation is used
for heating.
GAS HEAT
GAS HEAT/ELECTRIC
HEATING EQUIP STAGES — The number of gas heating stages or E- heating stages in the
equipment
NOTE If set to 2, the W2 relay output is not available for optional functions, such as
○ Humidifier
○ Humid-MiZer™ dehumidification
○ Occupancy Output
COMPRESSOR TYPE — The type of the unit's compressors(s)
NOTE Select HP for the HEAT EQUIP TYPE to define the auxiliary heat type.
COMPRESSOR STAGES — The numbers of compressors
NOTES
• If COMPRESSOR TYPE is set to HP, the number of stages also defines the number of
HP heating stages.
• If set to 3, the Y3 relay output is used for the third-stage compressor and the
thermostat configuration is limited for the following:
○ Humidifier
○ Humid-MiZer™ dehumidification
○ Occupancy output
AUTO ALLOWED — Enables and disables the thermostat to automatically switch from
heating to cooling to maintain the temperature between the setpoints.
PROG OR NON-PROG — Allows the thermostat to operate as a non-programmable
(simplified) thermostat or a programmable thermostat with two or four time periods per
day.
MAX HOLD TIME — The thermostat setpoints cannot be overridden by the user. When the
SCHEDULE PAUSED button is pressed on the SETPOINTS screen (SCHEDULE IS
RUNNING), and the user changes the setpoint, the MAXIMUM TEMPORARY HOLD TIMER
is started with this value and displayed in the clock location.
FAHRENHEIT OR CELSIUS — The temperature scale