Carrier PTACSTAT-NP-HC Installation, Batteries, Mounting to a horizontal junction box

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Batteries

Battery operation is available for installations where there is no common (C) wire available at the thermostat. For battery operation, install two alkaline AA batteries. The thermostat is designed to operate up to one year on a set of batteries. A battery indicator on the display warns when battery replacement is needed. If batteries are installed and the thermostat is operated from 24VAC power, battery operation will occur only when 24VAC power is not present. The changeover between 24VAC power and battery power is automatic.

For HeatCool system, 5 wires are needed for 24VAC operation and 4 wires are required for battery operation.

For HP system, 6 wires are needed for 24VAC operation and 5 wires for battery operation.

When battery operation is used, the C terminal does not need to be connected.

NOTE: Batteries are not required when there are enough wires for proper operation.

INSTALLATION

Mounting to a horizontal junction box.

For those installations requiring it, mounting hole locations for the non-programmable are spaced to fit a horizontal junction box.

Step 1 — Thermostat Location

SApproximately 5 ft (1.5m) from floor.

SClose to or in a frequently used room, preferably on an inside partitioning wall.

SOn a section of wall without pipes or duct work.

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Contents Installation Instructions Operating Manual Page Safety Considerations Table of ContentsPower Installation ConsiderationsIntroduction ModelsBatteries InstallationMounting to a horizontal junction box Thermostat LocationElectrical Operation Hazard Install ThermostatEnvironmental Hazard Secure Wires to Terminal Strip Terminal Designations Attach Comfort Series Programmable Thermostat Configuration Options Summary Set Thermostat ConfigurationOption 01 Equipment type Configuration Options SelectionTo Enter the Advanced Configuration Mode Option 04 Not used on a Ptac system Option 03 Fahrenheit/CentigradeOption 07 Not used on a Ptac system Option 10 Reversing valve HP onlyOption 16 Maximum Cycles Per Hour Option 13 Room Air Temperature OffsetOption 11 Minimum Deadband Between Heating And Cooling Option 17 Minimum Time Between Equipment Stages HP only Option 18 Backlight ConfigurationOption 26 Minimum Cooling Setpoint Option 27 Maximum Heating SetpointCheck Thermostat Operation Option 99 Reset to Factory DefaultsChecklist Button Identification Operating the ThermostatDisplay backlighting On-Screen IndicatorsUsing the fan Setting the temperatures for heating and coolingTurn the unit off Installing or replacing the batteriesUsing emergency heat heat pump units only Page There is a power outage Battery icon is displayedMy Thermostat does not show room temperature What ifThere are icons flashing on the thermostat display You get a system error messageThermostat Limited Warranty Warranty Conditions Limited Warranty for ThermostatThis Warranty does not Cover Page Outputs C Thermostat Typical Installation Wiring DiagramsThermostat Configuration Record Catalog No PTACSTAT---NP---01SI