signifies a hazard which could result in personal injury or death. CAUTION is used to identify unsafe practices which may result in minor personal injury or product and property damage. NOTE is used to highlight suggestions which will result in enhanced installation, reliability, or operation.
INTRODUCTION
Carrier’s PTAC Comfortt Series non-programmable thermostat is a wall-mounted, low-voltage thermostat which maintains room temperature by controlling the operation of a heating and/or air conditioning system. Both heat pump and air conditioner models are available. A variety of features are provided including battery operation, memory in case of power interruption, separate heating and cooling setpoints, backlighting, and built-in installer test.
This Installation Instruction guide and owners manual covers installation, configuration, start up and operation of the PTAC specific Comfort Series line of thermostats.
INSTALLATION CONSIDERATIONS
Models
There are two models for the PTAC Comfort Series non-programmable thermostat, AC and HP versions. The model PTACSTAT-NP-HC-x is designed for AC systems, controlling one stage of cooling and one stage of heating. It will not operate
aheat pump. Model PTACSTAT-NP-HP-x is designed for HP systems, controlling one stage of cooling and two stages of heating. The HP thermostat model can be converted to an AC unit. Select the appropriate model for the intended application.
Power
All Comfort Series models are dual powered. They can operate from batteries (optional) or 24VAC power. Operation from 24VAC is preferred, if available.
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