![background image](http://html1.mh-extra.com/html/desa/comfort-glow-chdv37n/comfort-glow-chdv37n_owners-operation-and-installation-manual_2486325021.webp)
21
104605
OWNER’S MANUAL
FIREPLACE
INSTALLATION
Continued
Continued
INSTALLING OPTIONAL
WALL MOUNTED
THERMOSTAT - GWMT1
WARNING: Installation must
be done by a qualified installer
familiar with low voltage wiring
procedures.
WARNING: Do not connect
this thermostat to any electrical
source! Electrical shock and/or
fire hazard will occur.
1.
Open lower louver panel. The valve is
attached to the underside of the fire-
box assembly.
2.
Disconnect from the valve the wires
running from the ON/OFF switch.
3.
Connect one terminal of 25 ft. wire for
the wall thermostat to the TPTH termi-
nal on the valve. Connect remaining
wire terminal to the TH terminal on the
valve. Make sure that the wire termi-
nals are in the positions on the control
valve as pictured in Figure 40. If wires
are not connected as shown, the ther-
mostat will not work.
4.
Route the 25 ft. wire through openings
provided on the sides of the fireplace
to a convenient location to mount your
thermostat (no outside wall).
IMPORTANT:
The wire may be short-
ened 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 conditioning ducts.
5.
Gently remove the cover of the ther-
mostat from the base. Grasp the sides
of the cover firmly and pull to separate
from the base.
6.
Feed the electrical wires through the
rectangular slots (from the back) on
each side of the base (see Figure 41).
WARNING: Do not connect
this thermostat to a power
source. Electrical shock and/or
fire hazard will occur.
7.
Connect one bare wire end to each ter-
minal (“W” and “R”) of the thermostat
base (see Figure 42).
8.
Install the base to the wall with screws
provided with thermostat.
9.
Move the temperature adjustment back
and forth to insure the bi-metal is free
from restrictions.
10. Replace the cover onto the base. (Upon
installation, the thermostat must be al-
lowed to stabilize at room temperature
for a minimum of 30 minutes for proper
operation.)
11. Set the temperature adjustment to the
desired setting.
This thermostat has been electronically
calibrated at the factory. No adjustment
or leveling is necessary.
Feed wires through
rectangular slots
Figure 41 - Back View of Thermostat Base
Terminal “W”
Terminal “R”
Figure 42 - Thermostat Base Terminals
Figure 40 - Control Valve Terminals
WIRELESS HAND-HELD
REMOTE CONTROL
ACCESSORY - GHRCT
(Included)
Installing Battery into Receiver
1.
Open bottom louver and locate the
switch bracket on the left.
2.
Unscrew the switch bracket. Lean
bracket forward so you are able to ac-
cess the back of the remote receiver.
3.
Locate the battery clip mounted on the
back of the receiver. Slide a 9-volt bat-
tery (not included) through the clip.
4.
Attach the terminal wires to the battery.
5.
Replace the switch bracket.
Figure 43- Attaching Battery to Receiver
Installing 9-Volt Battery in Hand-
Held Remote Control Unit
1.
Remove battery cover on back of re-
mote control unit.
2.
Attach terminal wires to a 9-volt bat-
tery (not included). Place battery into
the battery housing.
3.
Replace battery cover onto remote con-
trol unit.
Figure 44 - Installing Battery in Hand-
Held Remote Control Unit
Battery
Cover
9-Volt
Battery
Terminal
Wires
Remote
Control Unit
Battery
Housing
9-Volt Battery
Receiver
Terminal
Wires
Battery Clip
W
R
t
To Wall
Thermostat