Choosing Thermostat Location; Thermostat, Indoor Temperature Sensor, & Thermostat Communication Cable Installation - Dometic 640315 series Installation Instructions Manual

INSTALLATION PROCEDURE
E.

Choosing Thermostat Location

1. If the system is to be used WITHOUT an indoor
temperature sensor, the proper location of the
CCC 2 thermostat is very important to ensure
that it will provide a comfortable RV tempera-
ture. Observe the following rules when selecting
a location:
● Locate the CCC 2 thermostat 54" above the
floor.
● Install the CCC 2 thermostat on a partition,
not on an outside wall.
● NEVER expose it to direct heat from lamps,
sun or other heat producing items.
● Avoid locations close to doors that lead out-
side, windows or adjoining outside walls.
● Avoid locations close to supply registers and
the air from them.
2. If the system is to be used WITH an indoor tem-
perature sensor in ALL zones, the CCC 2 ther-
mostat may be mounted anywhere that is con-
venient in the coach. Try to avoid hard to reach
and hard to see areas.
● Refer to the instructions provided with the in-
door temperature sensor for details of instal-
lation.
F. Thermostat,
Sensor, & Thermostat Communication
Cable Installation
1.  T he previously run communication cable (4 con-
ductor telephone cable) must be terminated with
two (2) RJ-11-6C4P telephone connectors. Re-
fer to the crimp tool manufacturer for crimping
instructions. See (FIG. 6) & (FIG. 7).
 R J-11-6C4P connectors MUST be in-
stalled as shown in (FIG. 6) & (FIG. 7).
FIG. 6
Indoor Temperature
FIG. 7
2. Route the communication cable through the 2"
diameter hole in the wall required for the thermo-
stat. See (FIG. 8).
FIG. 8
CCC 2 Thermostat
(Rear View)
3. Optional Indoor Temperature Sensor
a. Refer to the instructions provided with the
indoor temperature sensor for details of in-
stallation.
4. Thermostat Installation
a. Carefully separate the thermostat base plate
from the thermostat cover. Insert a small
screw driver into the slot on bottom of ther-
mostat and disengage the tab. See (FIG. 9).
8
Pin 1
RJ-11-6C4P Connector
Flat Four Conductor
Communication Cable
Wall