Operating your system using the Carrier® Connect™ Wi-Fi Thermostat
33CONNECTSTAT43 ©2022 Carrier.
Installation Guide All rights reserved.
22
The thermostat supports the following types of constant volume units:
• Standard heat/cool unit types with up to 3 stages of mechanical cooling, up to 2 stages of gas or electric
heating, and up to 4 stages for non-Carrier heat pumps
• Heat pump units utilizing a reversing valve output for heating and cooling control
• Carrier heat pump unit with an OEM defrost control board
NOTES
• Humidification or dehumidification control strategies are available for appropriately equipped units.
• The following configurations have interdependencies that may preclude the use of others:
○ Reversing valve
○ Third-stage cooling
○ Humidification
○ Dehumidification
○ Occupancy Output
○ The flex outputs, Y3, O, and W2, may be available for optional functions.
EXAMPLE In a single stage heating system, the W2 output could be used as the Occupancy output to
enable the ECON during occupied periods.
Occupancy
Configure the thermostat to operate in a programmable or non-programmable mode. Non-programmable operates
continuously in occupied mode. Programmable operates as a 7-day programmable thermostat for either 2 or 4
periods per day. You can set each period as occupied or unoccupied.
If you configure Smart Recovery for 30 to 90 minutes, the occupied start time increases up to the maximum time,
in order to bring the space to the occupied setpoints at actual occupied time.
Supply fan
Configure the supply fan for ON or AUTO, in either occupied or unoccupied mode.
• ON – Fan runs continuously regardless of demand
• AUTO – Fan cycles heat or cool demand if there is a demand for humidity or dehumidification
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