Desa FDCFRN - Manual (Page 20)

www.desatech.com 111244-01C 20
INSTALLATION
Continued
2. Connect one terminal of 25 ft. wire to the
“TH” terminal on the control valve. Connect
the other terminal to the "THTP" terminal on
the control valve. See Figure 31.
3. Route the 25 ft. wire to a convenient location
to mount your thermostat (no outside wall).
IMPORTANT: The wire may be shortened but
must not be lengthened.
The thermostat should be mounted 54" above
the floor in a location where there is good air
circulation. Avoid heat sources such as lamps,
direct sunlight, fireplace, or heat and air con-
ditioning ducts.
4. Gently remove the cover of the thermostat
from the base. Grasp the sides of the cover
firmly and pull to separate from the base.
5. Feed the electrical wires through the rectan-
gular slots on each side of the base (see Fig-
ure 32).
WARNING: Do not connect
the thermostat to a power
source. Electrical shock and/or
a fire hazard will occur.
6. Connect one bare wire end to each terminal
(“W” and “R”) of the thermostat base (see
Figure 33).
7. Install the base onto the wall with the pro-
vided screws.
8. Move the temperature adjustment back and forth
to insure the bimetal is free from restrictions.
9. Replace the cover onto the base. (Upon in-
stallation, the thermostat must be allowed to
stabilize at room temperature for a minimum
of 30 minutes for proper operation).
10. Set the temperature adjustment to the desired
setting. This thermostat has been electroni-
cally calibrated at the factory. No adjustment
or leveling is necessary.
Figure 32 - Back View of Thermostat Base
Feed wires through
rectangular slots
W
R
Figure 33 - Thermostat Base Terminals
“W” and “R”
Terminal “W”
Terminal “R”
Figure 31 - Connecting Wire Terminals
To Wall
Thermostat
or Switch
To Wall
Thermostat
or Switch
Control Valve
OPTIONAL WALL SWITCH - GWMS2
(Remote-Ready Models Only)
WARNING: Read and follow
installation instructions. Instal-
lation should be done by a quali-
fied installer familiar with low-
voltage wiring procedures.
WARNING: Do not connect
this switch to any electrical
source! Electrical shock and/or
fire hazard will occur.
1. Remove jumper wire from control valve (see
Figure 26, page 19).
2. Connect one terminal of 25 ft. wire to the
“TH” terminal on the control valve. Connect
the other terminal to the "THTP" terminal on
the control valve. See Figure 31.
3. Route the 25 ft. wire to a convenient location
to mount your wall switch (no outside walls).
WARNING: Do not connect
the switch to a power source.
Electrical shock and/or fire haz-
ard will occur.