Please refer to the Maintenance and Cleaning section for the
Once the unit is properly wi red, measure the unit supply vol tage.
Voltage must fall within the voltage utilization range given in
Voltage Utilization Range
Table 2 - Operating Voltage
A 7 button touch key pad, located behind the control door,
controls both temperature and operation mode. The key pads
can be used alone or in combination.
BUTTON TOUCH PAD WITH DISPLAY
Pressi ng the COOL thermosta t control and the up or down arrows
will provide a cooler room temperature. Pressing the HEAT
thermostat control and the up or down arrow keys will provide
a warmer room temperature.
LCDI OR AFCI POWE R CORD
2301208Vand 115V units are equipped with LCDI or AFCI power
cords and can open the electrical circuit to the unit. In the event
the unit does not operate, check the reset button located on or
near the head of the power cord as part of the normal trouble
The fan speed touch key will deliver high, low or auto fan speed
to circulate room air. NOTE: The AUTO selection will not be
available if a fan speed is selected without COOL or Heat
Fan Operation HIGH or LOW with HEAT or COOL mode selected
- The selected fan speed shall run in the selected speed.
Fan Operation AUTO with HEAT or COOL mode selected - The fan
will run in low and high speed. The changes in fan speed are
The green diagnostic light located in the lower left hand corner
of the touch pad and indicates operation warnings. This light
usually indicates that either the filter or coils need cleaning.
proper cleaning procedure. If this light is still on after cleaning,
please refer to the Diagnostic & Status Report section for
, I ~'
Touch Pad With Display User Controls
Control Board User Inputs*
*NOTE: The PTAC Wire Harness Kit (PWHK01C) is required for
the auxiliary or remote thermostat options.
ADDITIONAL CONTROL INPUTS
The control inputs shown above provide additional unit control
and features. To access these control inputs, the cabinet front
must be removed (see Front Removal).
The master switch disconnects power to all of the system
When this switch is in the off position, the
compressor, fan motor, reverSing valve, and electriC resistance
heater will all be de-energized.
DISCONNECT ALL POWER BEFORE SERVICING.
MULTIPLE POWER SOURCES MAY BE PRESENT. FAILURE
MAY CAUSE PROPERTY DAMAGE, PERSONAL
INJURY OR DEATH.
Do NOT SERVICE THIS UNIT WITHOUT FIRST UNPLUGGING THE UNIT
AT THE WALL OUTLET OR TURNING OFF THE POWER AT THE FUSE
BOX OR CIRCUIT BREAKER. LINE VOLTAGE WILL BE PRESENT AT
THE CONTROL BOARD, TERMINALS L
IS APPLIED TO THE UNIT REGARDLESS OF THE MASTER SWITCH