FMI BK User manual

BK AND BKT BLOWER ACCESSORY
INSTALLATION INSTRUCTIONS
MODEL BK
MANUALLY CONTROLLED
BLOWER
MODEL BKT
THERMOSTATICALLY
CONTROLLED BLOWER
WARNING: ELECTRICAL GROUNDING INSTRUCTIONS This
appliance is equipped with a three-prong (grounding) plug for your
protection against shock hazard and should be plugged directly into
a properly grounded three-prong receptacle.
(Check your appliance owner's manual for specic applications and additional instructions.)
Parts included with this kit.
Tools required
Pliers•
Phillips Screwdriver•
Flat Blade Screwdriver•
If any of these pieces are missing or damaged, or if the installation instructions for your re-
place or stove are not included in this manual, contact the dealer where you purchased this
kit or FMI PRODUCTS, LLC at 1-866-328-4537 for referral information.
PART NO. DESCRIPTION QTY
119943-01 Blower assembly with speed
control and 6 foot cord
• • 1
104901-01 Wire assembly • 1
103650-01 Control Knob • • 1
103651-01 Lock 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
BK
BKT

www.fmiproducts.com 108998-01G2
Figure 2: Accessing Duplex Electrical Outlet installed in Bottom Right
Side of Firebox
Figure 1: Accessing Blower Compartment (Controls Not Shown for Clarity) B-vent,
Wood and Vent-Free Models
The BK and BKT blowers utilize the same
rotary squirrell cage type blower with magnetic
attachment and variable speed control. The
BKT also includes an additional thermostati-
cally controlled feature for use on some direct-
vent models only.
The BK blower can be installed in wood burn-
ing, B-vent and vent-free model replaces.
Both the BK and BKT blowers can be installed
in direct-vent model replaces. Blowers are
installed by accessing the blower compart-
ment through the lower louver panel or, on
some models, through 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.
WARNING: Ifthereisaduplex
electrical outlet installed in the
right side of the bottom of the
replace base area (see Figure
2), be sure that the electrical
power to the outlet is turned off
before proceeding with blower
installation. Failure to do this
may result in serious injury.
Duplex
Electrical
Outlet
Front Refractory
Panel
Control
Access
Cover
Knockout
plug
Lower Louver Panel

www.fmiproducts.com
108998-01G 3
Figure 3: Removing Louver Panel with Spring Latches
(Direct-Vent Models)
Figure 4: Removing Louver Panel with Bullet-Style Clips
(Direct-Vent Models)
REMOVING LOUVER PANEL
Louver
Panel
Bullet-Style
Clips
Locating
Holes
WOOD, B-VENT AND VENT-FREE
MODELS
For models other than direct-vent, remove
panel or stamped face louver by snapping
out the front with a at blade screwdriver (see
Figure 1, page 2). Use caution not to scratch
any surfaces. These panels can also be re-
moved by inserting ngertips between slots
and gently pulling out. DO NOT FORCE. The
panels are actually held in place by means of
a retention dimple 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
louvers: 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 appli-
ance until they are disengaged from the latch-
ing holes. Repeat for bottom spring latches
and pull louver outward (see Figure 3). To
reinstall, simple reverse procedure.
Bullet-Style Clip: Remove louver with bullet-
style clips by using a at blade screwdriver and
snapping louver forward. Use caution not to
scratch any surfaces. These panels can also be
removed by inserting ngers between slots on
louver and gently pulling out. DO NOT FORCE
(see Figure 4). To reinstall, align bullet-style
clips with locating holes on inside of rebox
and push gently.
Rolled
Louver
Panel
Spring
Latch

www.fmiproducts.com 108998-01G4
Note: The BKT blower is for application into
direct-vent models only. When installing the
BKT thermostatically-controlled blower, you
must rst secure the thermal switch bracket
to the blower if it has not already been fac-
tory installed.
Place the green ground wire with ring 1.
terminal between the bottom hole on the
thermal switch bracket and the top ear
hole on the blower assembly. Insert the
phillips screw into all three pieces and
tighten securely (see Figure 6).
Connect wire harness and power cord 2.
terminals. 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 remain-
ing blower motor terminal.
Note: Speed control switches can not be
installed into ligree panels. Installing a wall
switch or thermostat in the wall outside of
replace will eliminate removing bottom louver
to adjust operation of blower.
Attach the power cord to the blower 1.
motor by rmly pushing the two female
terminals at the end of the power cord
onto the two spade terminals on the
blower motor (see Figure 5).
Attach green ground wire from power 2.
cord to blower housing using screw
provided (see Figure 5) Tighten screws
securely with a phillips screwdriver.
Place the blower against the lower rear 3.
wall of the rebox outer wrapper with
the exhaust port directed upward. De-
pending on your model, you may have
to carefully route the blower assembly
past the controls and brackets, and
position the blower inside the back open-
ing. The blower will be held in position
against the back wall by the magnets
incorporated onto the blower housing
(see Figure 5).
Be certain that all wire terminals are 4.
securely attached to terminals on blower
motor and that the screw retaining the
green ground wire is tight.
Figure 5: Blower Model BK Figure 6: Blower Model BKT
MODEL BK WIRE
ASSEMBLY
MODEL BKT WIRE
ASSEMBLY
Blower
Location
Blower Installed
After Lower Panel
Removed
Air Flow
Direction
Magnetic strips
Green
Ground
Wire
Spade
Terminals
Screw
Magnets
Side view Firebox Bottom
Route BKT Blower
Through this Area
Ring
Therminal
on Green
Wire
Jumper Wire
To Blower
Motor Terminal
Thermal
Switch
Bracket
Thermal
Switch
To
Thermal
Switch
Blower
Location
Air Flow
Direction
Air Flow
Direction
Exhaust
Port
Magnetic strips
Phillips
Screw
Power Cord
Magnets
Thermodisc
Side view Firebox Bottom
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 anable enough to make all con-
nections securely.

www.fmiproducts.com
108998-01G 5
Figure 7: Attaching Speed Control to
Direct-Vent Firebox
MOUNTING SPEED
CONTROL
Figure 8: Attaching Speed Control to
Firebox with Panel Louvers Using Speed
Control Bracket 109892-02
MODEL BKT WIRE
ASSEMBLY
Continued
DIRECT-VENT MODELS
Mount the speed control box by placing the
plastic control shaft forward through the
mounting opening on the pre-installed bracket
(see Figure 7).
While supporting the speed control in the
vertical position, secure the control shaft by
pushing and turning the lock nut with pliers
until it is tight against the mounting bracket.
Place control knob provided on the control
shaft (see Figure 7).
MODELS WITH STAMPED PANEL LOU-
VERS
Wood, B-Vent, and Vent-Free models
Position speed control bracket by insert-1.
ing ange of bracket between hearth
pan and upper ange of louver opening,
then seat bottom end of bracket onto
lower flange of louver opening (see
Figure 8).
Mount speed control box by placing 2.
plastic control shaft through bottom hole
on speed control bracket. Top screw
head on control box will t inside top
hole on bracket (see Figure 8). Secure
speed control to bracket with lock nut
by pushing and turning lock nut with
pliers clockwise until it is tight against
bracket.
Remove knockout plug from louver panel 3.
by depressing top and bottom retaining
clips (see gure 1, page 2).
Place louver panel, louvers pointing up, 4.
back into framed opening. Align control
shaft with rectangular opening by slid-
ing control bracket along ange (see
Figure 8).
Fully seat louver panel into frame open-5.
ing by gently pressing along ends until
all dimpled retainers have snapped in
place.
Place control knob, provided, onto con-6.
trol shaft (see Figure 8).
Control
Shaft
Control
Knob
Lock Nut
Pre-installed
Bracket
(Direct-Vent
Only)
Bottom Front Refractory
Bottom Rear
Refractory
Lower Louver Panel
Control
Shaft
Firebox
Face
Hearth Pan
Flange
Speed
Control
Speed
Control
Bracket
Lower
Flange
Control Knob
Lock Nut
Place the blower against the lower rear 3.
wall of the rebox outer wrapper with
the exhaust port directed upward and
the thermodisc position up near the
replace bottom. The thermodisc must
be oriented near the replace bottom
as shown in Figure 6 in order to sense
temperature and properly operate. The
blower will be held in position against the
back wall by the magnets incorporated
onto the blower housing (see Figure 6,
page 4).
Be certain thet all wire terminals are 4.
securely attached to terminals on blower
motor and thermal switch, and that the
screw for the thermodisc bracket and
green ground wire is tight.
To mount speed controls, see 5. Mounting
Speed Control for All Direct Vent Models
(below), Mounting Speed Control for All
Models with Panel Louvers (colum 2) or
Mounting Speed Control for All Models
with Stamped Face Louvers (page 5),
depending on your model.

www.fmiproducts.com 108998-01G6
MODELS WITH STAMPED FACE LOUVERS
(B36, VB36 WOOD BURNING UNITS)
Using pliers, bend two retaining tabs on 1.
speed control bracket 90 degrees to front
of bracket (see Figure 9).
Mount speed control box by placing 2.
plastic control shaft through bottom hole
on speed control bracket. Top screw
head on control box will t inside top
hole on bracket (see Figure 9). Secure
speed control to bracket with lock nut
by pushing and turning lock nut with
pliers clockwise until it is tight against
bracket.
Remove knockout plug from louver panel 3.
by depressing top and bottom retaining
clips (see Figure 1, page 2).
Position speed control assembly over 4.
ange on hearth pan by sliding bracket
up between the face and ange, then
down until the control shaft is aligned
with the opening in the louver panel
(see Figure 9).
Lock two retaining tabs onto lower louver 5.
by pressing down on bracket assembly
while sliding control knob through rect-
angular opening on louver and onto the
control shaft (see Figure 9).
Speed Control
Bracket with
Assembly
Srew Head
and Top Hole
on Bracket
Control
Shaft
Control Shaft
Hearth Pan
Flange
Firebox Face
Speed
Control
Bracket
Retaining
Tabs
Retaining Tab
Control Knob
Louver Panel
Lock Nut
Figure 9: Attaching Speed Control to Firebox with Stamp Faced Louvers (B36 and
VB36 Models) Using Speed Control Bracket 109892-01
MOUNTING SPEED
CONTROL
Continued

www.fmiproducts.com
108998-01G 7
Check to make sure that the power cord 1.
is completely clear of the blower wheel
and that there are no other foreign ob-
jects in blower wheel. Also double check
all wire leads and make sure wire routing
is not pinched or in a precarious position.
Correct accordingly.
CAUTION: Never touch the
blower wheel while in operation.
CONNECTING POWER AND
OPERATING BLOWER
Turn on power to duplex outlet if previ-2.
ously turn off per the warning on page
2.
Plug in blower power cord to duplex 3.
outlet (see Figure 2, page 2).
BK Model: Turn blower on and check 4.
for operation. Turn blower off by turn-
ing knob fully counterclockwise before
continuing.
BKT Model: The blower will only run 5.
when the speed control knob is in the ON
position and the Thermal switch senses
temperature after the replace 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 fireplace
operating, the blower will continue to
run for a short time after the replace
has been turn off. As the thermal switch
cools down, the blower shuts down
automatically.
Peel off the backing paper and stick the 6.
supplied wiring diagram decal on the
rebox bottom approximately 12'' in front
of the blower (see Figure 10).
Replace all panels and/or brick bottom 7.
if previously removed.
Figure 10: Location of Wiring Diagram Decal (Model May Vary From Illustration)
Figure 11: Wiring Diagram
Variable
FanSwitch
White
White
Black
Green
On
110/115
V.A.C.
Blower
Motor
Black
Black
Black
Off
Wiring Diagram Decal
12'' in Front of Blower
Red
Va riable
Fan Switch Fan Switch
(N.O.)
Green
White
On
11 0/115
V . A.C.
Blower
Motor
Black
Off
1
2
Black
Blue
(BKT Model Only)

108998-01
Rev. G
07/10
2701 S. Harbor Blvd.
Santa Ana, CA 92704
1-866-328-4537
www.fmiproducts.com