12
H. Wiring The System
Reach up into the return air opening and pull the re-
maining wires down.
1.
Connection Of Low Voltage Wires
Disconnect the positive (+) 12 volt DC termi-
nal at the supply battery. Damage to equip-
ment could occur if the 12 volt DC is not shut
off.
a.
Connect the previously run 12 VDC to the red
and black wires protruding from the units return
air opening. C12 VDC to the red wire;
–12 VDC to the black wire. (Do not connect
wires if using the 3308120.XXX Genesis Air
Filtration System Return Air Kit.) See Section I
Decorative Cover Installation (Installating unit
with 3308120.XXX Genesis Filtration System
Return Air Kit).
b.
Connect the previously run furnace thermostat
wires (if applicable) to the blue/white wires
protruding from the units return air opening. The
polarity of these connections does not matter.
c.
Connect the receiver flat four conductor control
cable previously terminated (see Section E-2.
Control Cable) into one of the receiver leads out
of the air conditioner. Either one of the two (2)
receiver cables can be used.
d.
Insert the receiver cable into the receiver and
mount it in the desired location. See FIG. 14.
CAUTION
AC Power
Supply
Pull Electrical
Cord Down
Center Unit From Below
Roof
Gasket
FIG. 26
DC Power
Supply
Receiver
Leads
Furnace
Furnace
Tstat Con-
nection
From A/C
•
Place the foam divider in the return air open-
ing above the center duct before ceiling tem-
plate.
c.
Install Ceiling Template
•
Apply a piece of foam weather stripping (not
supplied) to the upper side of ceiling tem-
plate to make a seal between it and the
duct. Use a soft piece of foam weather strip
1 x 3/4 x 10 inches. See FIG. 25.
FIG. 25
Stick Weather Strip To Top
Of Ceiling Template
Weather Strip
Ceiling
Template
•
Start each mounting bolt through the ceil-
ing template and up into the unit base pan
by hand.
•
EVENLY tighten the bolts to a torque of
40 to 50 inch pounds. This will com-
press the roof gasket to approximately
1/2". The bolts are self locking so over
tightening is not necessary. See FIG.
16.
d.
Use Aluminum foil tape (not supplied) to seal
the ends of the foam divider to the sides of the
opening. Make sure the area behind the flange
on the ceiling template is sealed. See FIG. 23.
e.
Cut the opening in the center duct using the
discharge opening in the ceiling template for a
pattern. Seal the center duct to the ceiling tem-
plate using foil tape, foam insulation or silicon
sealant.
If bolts are left loose there may not be ad-
equate roof seal or if over tightened, damage
may ocur to the air conditioner base or ceiling
template. Tighten to specifications listed in
this manual.
CAUTION
Improper installation and sealing of foam di-
vider will cause the compressor to quick cycle
on the cold control. This may result in fuse or
circuit breaker opening and/or lack of cool-
ing.
CAUTION
620615, 620625 & 620626 Installation & Operating Instructions
