REAR REMOTE SENSOR
(Required with Second
Air Conditioner)
REAR REMOTE SENSOR
(Required with Second
Air Conditioner)
14-1/4" x 14-1/4"
(±1/8”) OPENING
14-1/4" x 14-1/4"
(±1/8”) OPENING
14-1/4" x 14-1/4"
(±1/8”) OPENING
14-1/4" x 14-1/4"
(±1/8”) OPENING
OPTIONAL
FURNACE
OPTIONAL
FURNACE
FURNACE
2 WIRES
FURNACE
2 WIRES
OPTIONAL FRONT
REMOTE SENSOR
OPTIONAL FRONT
REMOTE SENSOR
12V DC INPUT
2 WIRES
12V DC INPUT
2 WIRES
FURNACE
4-CONDUCTOR
CONTROL CABLE
4-CONDUCTOR
CONTROL CABLE
BREAKER BOX
BREAKER BOX
115V AC
REAR A/C
115V AC
REAR A/C
4-CONDUCTOR
CONTROL CABLE
4-CONDUCTOR
CONTROL CABLE
115V AC
FRONT A/C
115V AC
FRONT A/C
FURNACE
2 WIRES
FURNACE
2 WIRES
DOMETIC COMFORT
CONTROL CENTER
DOMETIC COMFORT
CONTROL CENTER
4
Section A - Installation, cont’d.
FIG. A6
Control Center configuration, page 16) the connector end
must be routed to the roof opening of the system which it
will control. Make sure that at least 15" of the sensor cable
extends into the roof opening. If a furnace is to be con-
trolled by the system, the two furnace thermostat leads must
be routed to the roof opening of the air conditioner that will
control it. Make sure at least 15" of the furnace thermostat
wires extend into the roof opening. If an Energy Manage-
ment System - EMS (load shed) is to be used with the
control, two wires must be routed to the roof opening of the
zone to be managed. The signal required for this function
is a normally open relay contact. When the EMS calls for
the compressor to shut off, the relay contacts should close.
Make sure that at least 15" of the EMS wires extend into
the roof opening.
FIG. A7
Route a copper 12 AWG, with ground, 115 VAC supply line
from the fuse or circuit breaker box to the roof opening.
a. This supply line must be located in the front portion of
the 14-1/4" (±1/8") opening.
b. The power supply
MUST
be on a separate Time Delay
Fuse or HACR Circuit Breaker.
c. Make sure at least 15" of supply wire extends into the
roof opening. This ensures easy connection at the
Junction Box.
d. Wiring must comply with all National, State and Local
Wiring Codes.
e. Use a steel sleeve and a grommet or equivalent meth-
ods to protect the wire where it passes into the open-
ing.
Route a dedicated 12 VDC supply line (18-22 AWG) from
the RV’s Converter or Battery to the roof opening.
a. This supply line must be located in the front portion of
the 14-1/4" (±1/8") opening.
b. Make sure that at least 15" of supply wire extends into
the roof opening.
c. In a multiple zone installation, this wiring is required in
only one of the 14-1/4" (±1/8") openings.
Route a 4-conductor telephone cable from the
Comfort
Control Center™
mounting position into the 14-1/4" (±1/
8") roof opening. Make sure that at least 15" of the wire
extends into the roof opening and 6" extend from the wall
at the mounting position of the
Comfort Control Center™
.
In the event that other A/C’s are to be installed (additional
zones) and additional 4-conductor telephone cable must
be routed to the other A/C’s. Make sure that at least 15" of
the wire extends into each of the roof openings. See FIG.
A8.
FRAME
14-1/4" (±1/8”)
OPENING
AC POWER
SUPPLY WIRE
DUCT
FRAME
FRAME
CCC, CONTROL CABLE(S)
or 7-Wire Analog Cable
LOW VOLTAGE WIRES:
12VDC
Furnace
Load Shed
Sensors
DUCT
ROOF
INSULATION
DUCT TO REAR
CEILING
DUCT TO FRONT
14-1/4" (±1/8”)
OPENING
INSULATION
SIDE VIEW
(TOWARD BACK OF RV)
TOP VIEW
(BACK OF RV)
FIG. A8
A seven-conductor cable, 18-22 AWG is to be used for low
voltage connections for Analog Controls. Choose the short-
est, direct route from the 14" opening to the thermostat
location selected. Consider where screws, nails or staples
might contact the cable. See FIG. A8.
A6a. Roof Top Units
Manual
Compliments
of
Northwest
RV
Supply
Printed
From
http://www.nwrvsupply.com
