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52C,P
SERIES
22
DESCRIPTION OF SELECTOR SWITCH
SETTINGS (Figure 42)
■ OFF MODE — The OFF position terminates unit
operation.
■ FAN ONLY MODE — Use fan only position for air
circulation without heating or cooling. Fan runs at
high speed.
■ HIGH HEAT OR HIGH COOL MODE — Position
selector and temperature control knobs to desired com-
fort level. This function provides maximum heating or
cooling, and is recommended to raise or lower the room
temperature quickly.
■ LOW HEAT OR LOW COOL MODE — Position
selector and temperature control knobs to desired com-
fort level. This function provides minimum heating
or cooling with maximum dehumidification during
cooling. This setting also allows for very quiet fan
operation.
■ FINDING TEMPERATURE SETTING FOR COM-
FORT LEVEL — Set temperature knob in the middle.
Select High Heat, Low Heat or Cool position and allow
unit to run for 15 to 30 minutes. If room is not comfort-
able, turn knob setting slowly to change setting. When
room is comfortable, keep control knob at that
position.
NON-USER ADJUSTABLE CONTROLS
■
OUTSIDE OR VENT AIR — Slide the vent lever to
the fully open position for outside air or fully closed
position for vented air.
■
FAN CYCLE — The fan cycle switch allows the fan
to operate in 2 modes:
CON — Fan runs continuously, circulating air even
when the temperature setting has been satisfied. This
helps to maintain the room temperature closer to the
thermostat setting.
CYC —Fan cycles on and off with the compressor dur-
ing heating or cooling. Fan stops when the tempera-
ture setting is satisfied. This results in longer unit off-
time and slightly larger variations in room tempera-
ture and humidity.
■
OUTDOOR THERMOSTAT (52CQ, PQ Units Only)
— The outdoor thermostat has 2 operating modes. The
heat pump mode (selector screw set fully clockwise),
allows the unit to operate normally in the reverse cycle
mode. The electric heat mode (selector screw set fully
counterclockwise), disables all compressor operating
modes, both heating and cooling for units with
mounted controls. For wall thermostat controlled mod-
els the compressor is only disabled in heating and still
allowed to run in cooling.
TYPICAL 52C UNIT CONTROLS TYPICAL 52C UNIT WITH
WALL THERMOSTAT CONTROLS (Blank Plate)
FIGURE 42 — TYPICAL CONTROL PANEL (52C Unit Shown)