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108998-01E

4

To 
Thermal 
Switch

Phillips 
Screw

Thermodisc

Jumper Wire

Ring 
Terminal on 
Green Wire

To Blower 
Motor Terminal

Thermal 
Switch

Figure 6 - Blower Model BKT

Thermal 
Switch
Bracket

Power Cord

Air Flow 
Direction

Magnetic Strips

Air Flow 
Direction

Route BKT Blower 
Through This Area

Magnets

Blower 
Location

Side View Firebox Bottom

Model BKt wire 

asseMBly

Note:

 The BKT blower is for application into 

direct-vent models only. When installing the BKT 

thermostatically-controlled blower, you must first 

secure the thermal switch bracket to the blower if 

it has not already been factory installed.

1.  Place the green ground wire with ring terminal 

between the bottom hole on the thermal switch 

bracket and the top ear hole on the blower as-

sembly. Insert the phillips screw into all three 

pieces and tighten securely (see Figure 6).

2.  Connect wire harness and power cord termi-

nals. Connect the jumper wire to the blower 

motor terminal and the right side terminal of 

the thermal switch. Connect one wire to the 

left side of the thermal switch and one wire to 

the 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 connections securely.

Figure 5 - Blower Model BK

Magnetic Strips

Exhaust 
Port

Screw

Green 
Ground 
Wire

Spade 
Terminals

Side View Firebox Bottom

Air Flow 
Direction

Blower Installed 
After Lower 
Panel Removed

Blower 
Location

Magnets

Model BK wire 

asseMBly

Note:

 Speed control switches can not be installed 

into filigree panels. Installing a wall switch or 

rheostat in the wall outside of fireplace will elimi-

nate removing bottom louver to adjust operation 

of blower.

1.  Attach the power cord to the blower motor 

by firmly pushing the two female terminals at 

the end of the power cord onto the two spade 

terminals on the blower motor (see Figure 5).

2.  Attach green ground wire from power cord 

to blower housing using screw provided (see 

Figure 5). Tighten screws securely with a 

phillips screwdriver.

3.   Place the blower against the lower rear wall of 

the firebox outer wrapper with the exhaust port 

directed upward. Depending on your model, 

you may have to carefully route the blower 

assembly past the controls and brackets, and 

position the blower inside the back opening. 

The blower will be held in position against the 

back wall by the magnets incorporated onto 

the blower housing (see Figure 5).

4.   Be certain that all wire terminals are securely at-

tached to terminals on blower motor and that the 

screw retaining the green ground wire is tight.

Summary of Contents for BK

Page 1: ...ck Nut 1 11125 8 1 2 Phillips Head Screw 1 101378 01 Thermodisc Switch 100 Limit 1 104902 02 Switch Mounting Bracket 1 109892 01 Speed Control Bracket Stamped Face Models 1 109892 02 Speed Control Bracket Panel Louver Models 1 Tools Required Pliers Phillips Screwdriver Flat Blade Screwdriver If any of these pieces are missing or damaged or if the installation instructions for your fireplace or sto...

Page 2: ...rough the control access cover under the front refractory panel see Figure 1 The lower front louver panel can be removed easily see Removing Louver Panel page 3 for instructions Figure 1 Accessing Blower Compartment Controls Not Shown for Clarity B Vent Wood and Vent Free Models Front Refractory Panel Lower Louver Panel Control Access Cover Knockout Plug Figure 2 Accessing Duplex Electrical Outlet...

Page 3: ...le embossed on the edge of the panel To reinstall place louver into cavity and push gently Direct Vent Models There are two different types of direct vent lou vers spring latch and bullet style clip Spring Latch Remove louver with spring latches by simultaneously pulling both top spring latches toward the center of the appliance until they are disengaged from the locating holes Repeat for bottom s...

Page 4: ...ach and make all connections DO NOT trim excessive length away Just enable enough to make all connections securely Figure 5 Blower Model BK Magnetic Strips Exhaust Port Screw Green Ground Wire Spade Terminals Side View Firebox Bottom Air Flow Direction Blower Installed After Lower Panel Removed Blower Location Magnets Model BK wire assembly Note Speed control switches can not be installed into fil...

Page 5: ...ol shaft see Figure 8 Speed Control Bottom Rear Refractory 3 Place the blower against the lower rear wall of the firebox outer wrapper with the exhaust port directed upward and the thermodisc positioned up near the fireplace bottom The thermodisc must be oriented near the fireplace bottom as shown in Figure 6 in order to sense temperature and properly operate The blower will be held in position ag...

Page 6: ...peed control to bracket with lock nut by pushing and turning lock nut with pliers clockwise until it is tight against bracket Figure 9 Attaching Speed Control to Firebox with Stamp Faced Louvers B36 and VB36 Models Using Speed Control Bracket 109892 01 Lock Nut Mounting Speed Control Continued 3 Remove knockout plug from louver panel by depressing top and bottom retaining clips see Figure 1 page 2...

Page 7: ...ing knob fully counterclockwise before continuing BKT Model 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 counterclockwise until it clicks off If the blower is ON and has been running with the fireplac...

Page 8: ...108998 01 Rev E 10 05 NOT A UPC 2701 Industrial Drive P O Box 90004 Bowling Green KY 42102 9004 Technical Service Department 1 866 672 6040 www desatech com 108998 01 ...

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