6
5. Attach remote wiring access cover to control box cover
using 2 screws provided (where knockout was removed
for thermostat wiring interface). See Fig. 17.
Installation Completion
1. Replace front panel.
2. Restore power to unit.
COOLING ONLY 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. Black fan motor wire from HI.
c. Red fan motor wire from LO.
3. Remove Yellow compressor wire from thermostat,
terminal 1.
4. Remove the thermostat and push button switch controls
and all remaining attached wires and discard. Remove
thermostat bulb and mounting bracket from front of coil
and discard with the thermostat control. See Fig. 7.
Install New Wall Thermostat Controls
1. Remove knockout on control box cover for thermostat
wiring interface. See Fig. 8.
2. Mount wall thermostat control panel to front control box
cover using 3 of the no. 10 hex head screws provided. See
Fig. 9-11.
NOTE: Be sure removable terminal block on control
board is lined up with hole in control box cover from
knockout in previous step.
3. Re-connect wiring to fan/cycle switch. See Fig. 6.
a. Black Hi Fan speed wire to top terminal on fan/
cycle switch.
b. Red Low Fan speed wire to bottom terminal on
fan/cycle switch.
c. Grey Fan wire (factory installed on PCB from
Relay K3, see Fig. 12) to center terminal on fan/
cycle switch.
4. Connect one end of Pink wire (included in plastic bag
labeled “For cooling only installations”) to the C terminal
on the capacitor. Connect the other end to L2 on relay
K2A1.
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. 15 — Location of Labels and Schematic
VENT
HEAT
MODE
HEAT
PUMP
ELECTRIC
NOTE: ELECTRIC H
EAT
MODE WILL DISABLE
COMPRESSOR OPE
RATION.
O
PEN
/C
LO
SE
D
FAN SPEED
SWITCH
HI
LO
CON
CYC
Fig. 16 — 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. 17 — Remote Thermostat Wire and
Terminal Cover
Fig. 18 — Cut Blue Wire from Terminal 1
