Maytag Amana PMH Series Service And Troubleshooting page 14

SYSTEM OPERATION
Mode
Switches
Users Controls "Digital Touch Pad"
A seven 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.
Touch Pad With Display User Controls
Thermostat Setting
7 BUTTON TOUCH PAD WITH DISPLAY
Pressing the COOL thermostat control and the up or down
arrows will provide a cooler room temperature, respectively.
Pressing the HEAT thermostat control and the up or down
arrow keys will provide a warmer room temperature.
Fan Speed
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 selection.
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 automatic. See "Configuration Settings" section
for further details.
Diagnostic Light
The green diagnostic light located in the lower left hand
corner of the touchpad and indicates operation warnings.
This light usually indicates that either the filter or coils need
cleaning. Please refer to the Maintenance and Cleaning
section for the proper cleaning procedure. If this light is still
on after cleaning, please refer to the Diagnostic & Status
Report section for assistance.
Master Switch
The master switch disconnects power to all of the system
components. When this switch is in the off position,
the compressor, fan motor, reversing valve, and electric
resistance heater will all be de-energized.
Remote/Standard
The remote/standard configuration is used to change the
control of the unit from the standard on board controls in
the standard mode, to a remote wall mounted thermostat
in the remote mode. For remote control configuration set-
tings, refer to Configuration Settings.
Fan Cycle Configuration
The fan cycle configuration sets the operational mode of
the fan. In the ON position, the fan will run continuously
whenever the unit is in the heat or cool mode. In the AU
position, the fan will cycle on and off with the compressor
or electric heater when the unit is in the cool or heat mode.
ON
OFF
MASTER SWITCH
Control Board User Inputs*
*NOTE: The PTAC Wire Harness Kit (PWHK01G70) is
required for the auxiliary or remote thermostat options.
Wired Thermostat
The C, R, GL, W2, Y/W1, B/O, and GH terminals provide
control inputs for a "manufacturer-approved" remote wall
mounted thermostat. The "B" terminal can be configured
to become "O" if needed see Configuration Settings For
remote control thermostat operation, refer to the Remote
Thermostat Operation section.
GL W2 Y/W1 B GH
C R
IN1 COM IN2
THERMOSTAT
AUXILIARY REMOTE
IAT
BLACK
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