Maytag Amana PTC A Series Service Instructions Manual page 24

PROPER INSTALLATION
Limiting Screws
Temperature Limiter
4. Remove the two screws supplied in the top of the control
panel cover, and drive them into the desired limiter holes.
5. Replace the escutcheon plate, control knobs and front.
NOTE: To achieve maximum efficiency, it may be necessary
to change the temperature limiter screws seasonally.
Users Controls "Digital Touch Pad"
A six 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.
Status LED
User Controls
Thermostat Setting
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 ar-
row 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 se-
lection.
Fan Operation HIGH or LOW with HEAT or COOL mode se-
lected - 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.
24
Temperature
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 as-
sistance.
Additional Control Inputs
The control inputs provide additional unit control and features.
To access these control inputs, the cabinet front must be re-
moved (see Front Removal).
Master Switch
The master switch disconnects power to all of the system com-
ponents. When this switch is in the off position, the compres-
sor, fan motor, reversing valve, and electric resistance heater
will all be de-energized.
WARNING
Remote Control Inputs
The C, R, GL, W2, Y/W1, B/O, and GH terminals provide con-
trol 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 ther-
mostat operation, refer to the Remote Thermostat Operation
section.
Vent Control
NOTE: Vent control is only used on units with the power vent
or power vent door kit not installed.
The vent control allows fresh air to be drawn into the condi-
tioned area. This fresh air can provide ventilation when the blower
is operating, but it will increase the heating or cooling load and
operating costs.
To obtain access to the vent control, remove the cabinet front
(see Front Removal). Remove the shipping screw (if installed)
from the vent door. Then remove the label (if present) from over
the vent control lever on the left side of the chassis.