www.desatech.com
116035-01J
4
Var
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Fan
Sw
itch
W
hite
W
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Bla
ck
Gr
een
On
110
/11
5
V.A
.C.
Blo
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Mo
tor
Bla
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Bla
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Bla
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Of
f
Figure 39 - Location of Wiring Diagram
Decal (Model May Vary From Illustration)
Wiring Diagram Decal
6" in Front of Blower
FIREPLACE INSTALLATION
Continued
Model BKT Installation
Note: When installing BKT thermostatically-
controlled blower, you must first secure the
thermal switch bracket to blower if it has not
already been factory installed.
1. Place green ground wire with ring ter
-
minal between bottom hole on thermal
switch bracket and top ear hole on blower
assembly. Insert Phillips screw into all
three pieces and tighten securely (see
Figure 40).
Thermodisc
Figure 40 - Blower Model BKT
Air Flow
Direction
Route BKT Blower
Through This Area
Magnets
Blower
Location
Side View Firebox Bottom
Black
Wire
Phillips
Screw
Blue Wire
Ring Terminal on
Green Wire
White Wire
Thermal
Switch
Thermal
Switch
Bracket
Power Cord
Air Flow
Direction
Magnetic
Strips
2. Connect wire harness and power cord
terminals. Connect blue jumper wire to
blower motor terminal and right side termi
-
nal of thermal switch. Connect black wire
to left side of thermal switch and white
wire to other remaining blower motor
terminal.
Note: The power cord outer insulation sleeve
may have to be stripped slightly to allow
enough wire length to reach and make all
connections. DO NOT trim excessive length
away. Just enable enough to make all con-
nections securely.
3. Place blower against lower rear wall of
firebox outer wrapper with exhaust port di
-
rected upward and thermodisc positioned
up near fireplace bottom. Thermodisc
must be oriented near fireplace bottom
as shown in Figure 40 in order to sense
temperature and properly operate. Blower
will be held in position against back wall
by magnets incorporated onto blower
housing (see Figure 40).
4. Be certain that all wire terminals are
securely attached to terminals on blower
motor and thermal switch and that the
screw for thermodisc bracket and green
ground wire is tight.
5. Mount speed control box by placing
plastic control shaft through opening in
switch bracket (see Figure 37, page 23)
or ignition module bracket (see Figure
38, page 23).
6. While supporting speed control, secure
control shaft with lock nut by pushing and
turning lock nut with pliers clockwise until
it is tight against mounting plate. Place
control knob provided on shaft (see Figure
37 or 38, page 23).
7. Check to make sure that power cord is
completely clear of blower wheel and
that there are no other foreign objects in
blower wheel. Also double check all wire
leads and make sure wire routing is not
pinched or in a precarious position. Cor
-
rect accordingly.
8. Turn on power to duplex outlet if previ
-
ously turned off per warning in column 2,
page 22.
9. Plug in blower power cord to duplex
outlet.
