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PACKAGED TERMINAL A/C SERVICE MANUAL Heat Controller
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1. TEMP CONTROL
Temp Control is used to maintain room temperature. Compressor will cycle on and off to keep room at the
requested level of comfort.
COOLER—Lowers temperature. (Minimum temperature setting is 61°F/16°C)
WARMER—Raises temperature. (Maximum temperature setting is 86°F/30°C)
2. FAN SPEED, MODE & ON/OFF
FAN SPEED—Set fan operation for HI, MED, or LO speed.
MODE-COOL—For cooling
MODE-HEAT—For heating
NOTE: If unit is a heat pump, raising the heat setting by 5°F will cause unit to use its electric heating elements for one
cycle in order to reach the new requested temperature quickly.
MODE-FAN—For fan--only operation
ON/OFF—Turns the unit on or off.
NOTE: The LED above the ON/OFF button will be green when unit is ON and red when the unit is OFF. All other
LEDs will be off when unit is set to OFF mode.
NOTE: Power remains connected to unit even when the unit is in the OFF mode.
E. Unit controls
The PTAC can be congured by the display and a set of dip switches.