Wiring Diagrams - Desa (V) CD36R(N Owner's Operation And Installation Manual

OPTIONAL BLOWER INSTALLATION
Continued
4. Be certain that all wire terminals are securely attached to ter-
minals on blower motor and thermal switch, and that the screw
for the thermodisc bracket and green ground wire is tight.
5. Mount the speed control box by placing the plastic control shaft
through the opening in switch bracket (see Figure 34, page 18)
or the ignition module bracket (see Figure 35, page 18)
6. While supporting speed control, secure control shaft with lock
nut by pushing and turning lock nut with pliers clockwise un-
til it is tight against mounting plate. Place control knob pro-
vided on shaft (see Figure 34 or 35, page 18).
7. Check to make sure that the power cord is completely clear of the
blower wheel and that there are no other foreign objects in blower
wheel. Also double check all wire leads and make sure wire rout-
ing is not pinched or in a precarious position. Correct accordingly.
8. Turn on power to duplex outlet if previously turned off per the
warning in column 1, page 17.
9. Plug in blower power cord to duplex outlet.
10. The blower will only run when the speed control knob is in the
ON position and the thermal switch senses temperature after the
fireplace begins to heat up. The blower speed can be adjusted by
rotating the control knob. To turn off, turn knob fully counter-
clockwise until it clicks off. If the blower is ON and has been
running with the fireplace operating, the blower will continue to
run for a short time after the fireplace has been turned off. As the
thermal switch cools down, the blower shuts down automatically.
11. Peel off the backing paper and stick the supplied wiring dia-
gram decal on the firebox bottom approximately 6" in front
of the blower (see Figure 36, page 18).
Power Cord
Thermal
Switch
Bracket
Black
Wire
Phillips
Screw
Thermal Switch
Route BKT
Blower Through
Thermodisc
This Area
Side View Firebox Bottom
Figure 37 - Blower Model BKT
116035-01B
White Wire
Magnetic
Blue Wire
Strips
Air Flow
Direction
Ring Terminal
on Green Wire
Air Flow Direction
Magnets
Blower
Location
OPTIONAL BLOWER INSTALLATION (Cont.)

WIRING DIAGRAMS

CAUTION: label all wires prior to disconnection
when servicing controls. Wiring errors can cause
improper and dangerous operation. Verify proper
operation after servicing.
Figure 38 - Blower Wiring Diagram for Thermostatic-Controlled Models
THERMO-
COUPLE
TO PILOT
SAFETY
VALVE
INCOMING
MAIN GAS
SUPPLY
Figure 39 - Millivolt Ignition Wiring Diagram
GAS VALVE
EV1
EV2
Figure 40 - Electronic Ignition Wiring Diagram
www.desatech.com
Models BK and BKT)
WiIRING DIAGRAMS
Blower Wiring Diagram
Millivolt Ignition Wiring Diagram
Electronic Ignition Wiring Diagram
Variable
Fan Switch
Fan Switch
(N.O.)
1
Off
Black
2
On
110/115
V.A.C.
Black
Blower
Motor
White
Green
PILOT
MILLIVOLT WIRING SCHEME
BURNER
THERMOPILE
REPLACE FACTORY WIRING WITH 105°C
EQUIVALENT OR HIGHER RATING
EXTERNAL WIRING USE ONLY CLASS 2
THERMOSTAT WIRE 18 GA. RED/WHITE
RED
PILOT SAFETY VALVE
WHITE
TH
TP
TH/TP
Pilot
Burner
IGNITOR LEAD
ORANGE
RED
BLACK
BLACK
BLACK
BLUE
GREEN
19
Blue
DO NOT
CONNECT
TO 120V
WALL SWITCH
RED
TRANSFORMER
WHITE
BLACK
BLUE
GROUND
120 VAC