5
3. Make thermostat wiring connection (5 wires) to remov-
able terminal block on control board, accessible through
the opening for thermostat wiring interface.
a. R to R (24 VAC)
b. C to C (common — must be connected for digital
thermostats)
c. Y to Y (compressor)
d. G to G (Fan)
e. W to W (electric heater)
4. Plug thermostat wiring terminal block back on to control
board.
5. Attach remote wiring access cover to control box cover
using 2 screws provided (where knockout was removed
for thermostat wiring interface). See Fig. 18.
Installation Completion
1. Replace front panel.
2. Restore power to unit.
HEAT PUMP UNITS
Remove Existing Controls
1. Remove ALL 3 wires (yellow, white and orange) from
the fan cycle switch. See Fig. 6.
2. Remove the following wires from the push button switch:
a. Power cord wire from L1.
b. Violet heater wire and Black Reversing Valve wire
from HTR and separate.
c. Other Black Reversing Valve wire from IT1.
d. Black fan motor wire from HI.
e. Red fan motor wire from LO.
f. Pink L2 wire from L2.
3. Remove the following wires from the Outdoor Frost
Thermostat (OFT) (See Fig. 6):
a. Black Wire from Terminal 2.
b. Blue wire that is multi-linked to the gray wire in
Terminal 1 is no longer needed. CUT Blue wire
from Terminal 1, allowing about 3 inches of wire,
and attach included wire nut to end of Blue wire.
See Fig. 19.
Fig. 15 — Sensor Clip for Indoor Coil Freeze
Thermostat (IFT) on Typical Unit
WIRING SCHEMATIC
WALL THERMOSTAT PTAC MODELS
CONVERSION LABEL
WIRING SCHEMATIC LABEL
CONTROL PANEL LABEL
W A L L T H E R M O S T A T C O M F O R T
NOTICE: THIS UNIT HAS BEEN CONVERTED
TO A REMOTE CONTROLLED (WALL THERMOSTAT)
UNIT USING CONVERSION KIT.
Fig. 16 — Location of Labels and Schematic
VENT
HEAT
MODE
HEAT
PUMP
ELECTRIC
NOTE: ELECTRIC HEA
T
MODE WILL DISABLE
COMPRESSOR OPERA
TION.
OPEN/CLOSED
FAN SPEED
SWITCH
HI
LO
CON
CYC
Fig. 17 — Location of Fan Speed Label
WIRING SCHEMATIC
WALL THERMOSTAT PTAC MODELS
W A L L T H E R M O S T A T C O M F O R T
NOTICE: THIS UNIT HAS BEEN CONVERTED
TO A REMOTE CONTROLLED (WALL THERMOSTAT)
UNIT USING CONVERSION KIT.
WIRING TO
WALL THERMOSTAT
Fig. 18 — Remote Thermostat Wire and
Terminal Cover
INDOOR COIL FREEZE
THERMOSTAT AND CLIP
WIRING ACCESS
HOLE
