Installation guide
AIRDISCHARGEGRILLE
The indoor air discharge grille can be positioned to direct the air
either straight up or at an angle into the room.
Changing the Airflow Direction
1. Remove the front cover.
2. Locate and remove the 6 grille retaining screws, as shown.
3. Turn the grille 180° and refasten the grille to the front cover.
4. Reattach the front cover.
1. Grille retaining screws
REMOTEWAILTHERMOSTAT
INSTALIATIONINSTRUCTIONS
• Unpack and dispose of packaging materials.
This thermostat is a wall mounted, low-voltage thermostat
that maintains room temperature by controlling the operation
of the PTAC/PTHR Batteries are not required--temperature
and mode settings are preserved with the power off.
This is not a 2-stage heat pump thermostat with emergency
heat selection. The PTAC/PTHP turns on the electric heat
automatically based on the outdoor coil temperature, which is
influenced by the outdoor temperature and humidity
conditions.
• Chassis must be installed before installing remote
thermostat.
IMPORTANT: Improper wiring or installation may cause the
thermostat not to function. Wiring must conform to local and
national electrical codes.
Wall Thermostat Terminal Designation:
Terminal Letter Operation Contact Made
Y Cooling During call for cooling.
W Heating During call for heating.
G Fan Continuous if the slider
is in the "Fan" position;
otherwise, on call for
cooling or heating.
C (common) Common Terminal Constant
R 24 V to the Constant (directly from
thermostat the transformer)
B (Heat Pump Reversing Valve Made continuously when
units Only) the mode switch is in
heating.
For best performance, thermostat should be mounted:
• Approximately 5 ft (152.4 cm) from floor.
• Close to or in the room with the PTAC/PTHP, preferably on an
inside partitioning wall.
• On a section of wall without pipes or duct work.
For best performance, do not mount thermostat:
• Close to a window, on an outside wall, or next to a door
leading to the outside.
• Exposed to direct light and heat from a lamp, the sun, a
fireplace, or other heat source. This may cause a false
reading.
• Close to or in direct airflow from the PTAC/PTHR
• In areas with poor air circulation (behind a door or in an
alcove).
Replacing Existing Thermostat
1. Disconnect power to avoid product damage during removal
of existing thermostat.
2. Disconnect wires from existing thermostat, one at a time. Do
not allow wires to fall back into the wall.
3. As each wire is disconnected, record wire color and terminal
marking.
4. Remove existing thermostat from wall.
5. See "Installing New Thermostat."
IMPORTANT: Mercury is a hazardous waste and must be
disposed of properly. Contact the Thermostat Recycling
Corporation at www.nema.org/trc for further information, or
contact your local waste management authorities.
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