Duo-Therm 600312.421 Manuel d'installation et d'utilisation - Page 11
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A. Position the control box (standing up) with the 6 pin connector to the curb side of the vehicle and the service access facing
the rear of the vehicle.
B. CONNECTION OF 115 VOLT AC SUPPLY
1. Route the previously run AC power supply line through the Romex Connector and into relay control junction box.
2. Reach up into the return air opening of the air conditioner and pull the unit electrical cord down for later installation.
3. Connect the white to white; black to black; and green to green or bare copper wire using appropriate sized twist wire
connectors. Tape the twist wire connectors to the supply wiring to assure they do not vibrate off.
4. Tighten screws on Romex connector being careful not to pinch and cut into the insulation on power supply leads.
5. Push excess wires into junction box. Install junction box cover, with model number/serial number facing out onto the
relay control box with #8 x 3/8" blunt point Phillips head screw provided.
Note: Model Number /Serial Number label must face out.
C
CONNECT LOW VOLTAGE WIRES
Note: If 3308120.XXX return air cover is being installed. Position the 12VDC supply wires out of the way to be connected
after the decorative cover is installed.
1. Connect red wire from control box to the thermostat "RC" terminal.
2. Connect the control box orange wire to the thermostat "G" terminal.
3. Connect the control box yellow wire to the thermostat "Y" Terminal.
4. Connect the control box blue wire to the thermostat "H" terminal.
Note: The provided thermostat is a "heat/cool thermostat". These instructions cover only the cooling connections
required. If connection of furnace is required, follow the instructions provided with the furnace. Normally the furnace will
connect to the "RH" and "W" terminals on the thermostat.
Note: See FIG. 9 for thermostat connection points.
FIG. 9
D. Plug unit electrical cord into the mating connector on the relay control box. These connectors are polarized and will easily
snap together. Do not force.
9. WIRING OF CONTROL SYSTEM
!
WARNING
Disconnect 115 volt AC. Failure to follow
these instructions could create a shock haz-
ard causing death or severe personal injury.
WARNING
!
This product is equipped with a 3-wire
(grounded) system for protection against
shock hazard. Make sure that the appliance
is wired into a properly grounded 115 volt AC
circuit and the polarity is correct. Failure to
do so could result in death, personal injury
or damage to the equipment.
RH
W
Y
INSTALLATION INSTRUCTIONS DUCTED BI-METAL
Thermostat Connections
Red Wire (Control Box) - "RC" (Thermostat)
Orange Wire (Control Box) - "G" (Thermostat)
Yellow Wire (Control Box) - "Y" (Thermostat)
H
Blue Wire (Control Box) - "H" (Thermostat)
Red (Furnace if Present) - "RH" (Thermostat)
White (Furnace if Present) - "W" (Thermostat)
RC
G
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