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INSTALLATION INSTRUCTIONS
J.
Low Voltage Wire Connections
Verify the positive (+) 12 Vdc termi-
nal is disconnected from supply battery. Otherwise,
damage to unit could occur.
1. I nsert the freeze control sensor into the evapo-
rator coil fins approximately 1" above the bottom
of the coil fins and on the left side. See (FIG. 11).
Bend fins over sensor to secure in place.
FIG. 11
Freeze Control
Sensor
Remove
Hang Tag
2. Connect the previously run +12 Vdc supply wire
to the red wire at the electronic control box.
3. Connect the previously run –12 Vdc supply wire
to the black wire at the electronic control box
and to the wire of the three wire cable that goes
to the thermostat 12V– terminal.
4. Connect the previously run furnace thermostat
wires (if applicable) to the 1/4" connectors at the
electronic control box using the supplied 1/4" in-
sulated connectors. The polarity of this connec-
tion does not mater.
5. Connect the red/white wire at the electronic con-
trol box to the wire of the three wire cable that
goes to the thermostat 12V+ terminal.
6. Connect the orange wire at the electronic control
box to the wire of the three wire cable that goes
to the thermostat COMMS terminal.
Route Up Through
Return Air Opening
K.
Installing Unit
1. I nstall the electronic control box. Make sure all
wiring has been completed and that the elec-
tronic control box cover has been installed. To
secure electronic control box to ceiling template
drive two (2) #10 x 3/8" blunt point Phillips head
screws (provided) through the ceiling template
and into holes in the electronic control box. See
(FIG. 12).
FIG. 12
Ceiling
Template
2. If your installation includes the optional electric
heat kit, install it at this time. Follow the instruc-
tions with heat kit package for its installation pro-
cedure.
3. Ceiling Template Installation
a. Hold the ceiling template up to the roof open-
ing and line up the channel in the ceiling
template with the previously installed duct
divider. See (FIG. 13).
FIG. 13
9
Electronic
Control
Box
Blunt Point
Screw
Duct Divider
Channel
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