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Operating your system using the Carrier® Connect™ Wi-Fi Thermostat
Cooling
The thermostat's application and configuration determine the specific cooling sequence. It can control up to 2
stages of cooling, with an additional output for a reversing valve, for non-Carrier heat pump applications, or up to
3 stages of cooling for non-heat pump applications.
NOTE The cooling stages are controlled based on a drift algorithm and the configurable DIFFERENTIAL value
(.5°F default)
The following conditions must be true for the cooling to operate:
•
The OAT must be above the COOL LOCKOUT (55°F default), if enabled
•
The cooling stage 5-minute minimum off-timer has expired
•
The space temperature has exceeded the cooling setpoint by the DIFFERENTIAL value (.5°F default)
Additional stages are added and dropped, based on demand using the DIFFERENTIAL value, STAGE DELAY timer,
and FORCED STAGE UP timer configuration values. If the LOW COOL LOCKOUT is configured for ON, or between
80°F and 110°F, and the OAT is equal to or greater than that value, cool stages 1 and 2 are energized on a
demand for cooling and remain on until the cooling demand is satisfied.
NOTE Once a cooling stage is energized, it remains on for a minimum of 5 minutes, regardless of demand.
Econ enable
The thermostat's application and configuration determine the specific economizer enable sequence. You can
enable an output relay in OCCUPANCY OUTPUT. The output is ON whenever the thermostat is Occupied and OFF
when Unoccupied.
NOTE The relay options may be limited by other programming options such as Humidity control, Heat Pump, etc..
The status of the economizer may be monitored using a dry contact (N.O.) on the Remote Sensor Input.
Carrier Connect™
Wi-Fi Thermostat
Installation Guide
Carrier Proprietary and Confidential
24
CARRIER CORPORATION ©2017
All rights reserved
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