9
INSTALL ALL POWER, INTERCONNECTING
WIRING, AND PIPING TO INDOOR UNIT
1. Run interconnecting piping and wiring from outdoor unit to
indoor unit.
2. Pass interconnecting cable through hole in wall (outside to
inside).
3. Lift indoor unit into position and route piping and drain
through hole in wall (inside to outside). Fit interconnecting
wiring into back side of indoor unit.
4. Hang indoor unit on upper hooks of wall mounting plate (as
shown in Fig. 14 and Fig. 17).
A08283
Fig. 14
-
Hanging Indoor Unit
5. Open front cover of indoor unit and remove field wiring ter-
minal block cover (see Fig. 15).
Field Wiring
Cover
Interconnecting
Cable
A08279
Fig. 15
-
Field Wiring Cover
6. Pull interconnecting wire up from back of indoor unit and
position in close to the terminal block on indoor unit.
7. Push bottom of indoor unit onto mounting plate to
complete wall mount.
8. Connect wiring from outdoor unit per connection diagram
(see Fig. 23).
NOTE
:
Polarity of power wires must match original
connection on outdoor unit.
9. Replace field wiring cover and close front cover of indoor
unit.
10. Connect refrigerant piping and drain line outside of indoor
unit. Refer to Fig. 11 for proper installation of flare
connections. Complete pipe insulation at flare connection
then fasten piping and wiring to the wall as required.
Completely seal the hole in the wall.
Fig. 16
-
Remove Knockouts
Mounting
plate
Fixing hook
Mounting
plate
A12408
Fig. 17
-
Hang Indoor Unit
UNIT DAMAGE HAZARD
Failure to follow this caution may result in equipment
damage or improper operation.
Never use the system compressor as a vacuum pump.
CAUTION
!
Refrigerant tubes and indoor coil should be evacuated using the
recommended deep vacuum method of 500 microns. The alternate
triple evacuation method may be used if the procedure outlined
below is followed. Always break a vacuum with dry nitrogen.
SYSTEM VACUUM AND CHARGE
Using Vacuum Pump
1. Completely tighten flare nuts A, B, C, D, connect manifold
gage charge hose to a charge port of the low side service
valve. (See Fig. 18.)
2. Connect charge hose to vacuum pump.
3. Fully open the low side of manifold gage. (See Fig. 19)
4. Start vacuum pump
5. Evacuate using either deep vacuum or triple evacuation
method.
6. After evacuation is complete, fully close the low side of
manifold gage and stop operation of vacuum pump.
7. The factory charge contained in the outdoor unit is good for
up to 25 ft. (8 m) of line length. For refrigerant lines longer
than 25 ft (8 m), add 0.2 oz. per foot of extra piping up to
the maximum allowable length.
8. Disconnect charge hose from charge connection of the low
side service valve.
9. Fully open service valves B and A.
10. Securely tighten caps of service valves.
