Comfort Control Center, Remote Sensor And Cable Installation; Location For Comfort Control Center And Remote Temperature Sensor; Control Cable; Cable Installation - Dometic 57908.321 Installation Instructions Manual

6. COMFORT CONTROL CENTER
A. LOCATION FOR COMFORT CONTROL CENTER
1. The proper location of the Comfort Control Center
RV temperature. Observe the following general rules when selecting a location for the CCC or remote sensor.
a. Locate the CCC/remote sensor 54" above the floor.
b. Install CCC/remote sensor on a partition, NEVER on an outside wall.
c. NEVER expose CCC/remote sensor to direct heat from lamps, sun or other heat producing items.
d. Avoid locations close to doors that lead outside, windows or adjoining outside walls or directly under cabinets or
overhangs which limit air movement.
e. Avoid locations close to supply registers and the air from them.
f. NEVER locate CCC/remote sensor in a room that is warmer or cooler than the rest of the coach - such as the kitchen.
g. The major living area is normally a good location.
2. If the system is to be used with a remote temperature sensor in all zones, the Comfort Control Center
anywhere that is convenient in the coach. Try to avoid hard to reach and hard to see areas. Follow a. - g. in step 1.
B. CONTROL CABLE
1. The cable that should be used is a flat, 4-conductor telephone type cable.
2. The cable must be terminated with two (2) RJ-11 telephone connectors. Refer to the crimp tool manufacture for
crimping instructions.
3. The RJ-11 terminals must be connected to the control cable with the same polarity on both ends. Pre-made stan-
dard telephone cable will not work. See FIG. 5 & 5A.
FIG. 5
C. CABLE INSTALLATION
1. Route a dedicated 12VDC supply line (18 to 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" x 14-1/4" (±1/8") opening.
b. Make sure that at least 15" of supply wire extends into the roof opening.
c. For multiple zone installation, this wiring is required in only one of the 14-1/4" x 14-1/4" (±1/8") openings.
2. Choose the shortest, direct route from the 14-1/4" x 14-1/4" (±1/8") opening to the Comfort Control Center
selected, and route a 4-conductor flat control cable. Make sure at least 15" of wire extends into the opening and 6" extends
from the wall at the Comfort Control Center
3. If a remote temperature sensor is to be used, the connector end must be routed to the roof opening of the system which
it will control. Make sure 15" of the sensor cable extends into the roof opening.
4. If an Energy Management System-EMS (load shed) is to be used with the control system, 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.
5. If system is to control a gas furnace, route two 18 gauge wires from the furnace to roof opening of the air conditioner that
will control it. If more than one furnace is to be used, route the second set of wires to the second air conditioner. Make
sure that 15" of wire extends into the opening.
6. In the event that other air conditioners are to be installed (additional zones) route an additional 4-conductor control cable
between the other air conditioner (additional zones). Make sure 15" of wire extends into the roof opening. See FIG. 6.
INSTALLATION INSTRUCTIONS DUCTED CCC
INSTALLATION
TM
TM (CCC) location.
TM
, REMOTE SENSOR & CABLE
AND REMOTE TEMPERATURE SENSOR
TM (CCC) is very important to ensure that it will provide a comfortable
FIG. 5A
9
TM may be mounted
Pin 1
RJ-11 Connector
Flat Four Conductor Cable
TM (CCC) location