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16943-5-0806 Page 17
INSTALLING OPTIONAL BLOWER SRB-18T OR SRB-30T
If heater is installed onto the wall, in order to install the optional blower,
the heater must be removed from the wall. If heater is installed on SRS-18
or SRS-30 optional floor stand there is adequate access area available to
install the optional blower.
1. Turn "OFF" gas supply to the heater.
2. Remove lower louver from casing assembly (2 screws).
3. Remove reflector from casing assembly (2 screws).
4. Remove upper louver from casing assembly (2 screws).
5. Insert the fan control wires and the upper portion of the fan control
through the 3/4" (19mm) diameter hole on the bottom side of the
top heat shield. The fan control wires will enter into the top portion
of the heater and the fan control disc will be facing the main burner.
Attach fan control to the bottom side of the top heat shield with (2)
screws provided with the optional blower.
6. Route cord set through 9/16" (14mm) diameter hole on casing
assembly back. Insert approximately 3" (76mm) of cord set into
casing assembly back.
7. When you are facing the front of the heater, position the optional
blower assembly onto the top heat shield of the heater. The motor
wire harness should be facing into the top, right portion of the
heater.
8. Attach (1) pin terminal from black (hot) wire, smooth insulation on
cord set to (1) socket terminal on fan control wire harness.
9. Attach (1) pin terminal from black (neutral) wire, ribbed insulation
on cord set to (1) socket terminal from white (neutral) wire on motor
wire harness.
10. Attach (1) pin terminal on fan control wire harness to (1) socket
terminal from black (hot) wire on motor wire harness.
11. Attach the green ground wire from the motor wire harness and the
green ground wire from the cord set to the bottom right side of the
blower housing with (1) screw provided with the optional blower.
12. With the heater standing upright, position the air discharge opening
of the blower housing downward. Place the bottom flange of the
blower housing over the top edge of the top heat shield. Insert the
blower housing into the top portion of the heater by pivoting the
blower housing upward 90°. Attach the blower housing to the casing
assembly with (4) screws provided with the optional blower.
13. Grasp cord set at casing assembly back and pull excess cord set
through casing assembly back. Secure cord set in casing assembly
back with the strain relief provided with the optional blower.
14. Installation of optional blower SRB-18T or SRB-30T is
completed.
15. If heater was removed from the wall, in order to install SRB-18T or
SRB-30T optional blower, check for gas leaks at all gas connections
before lower louver is replaced onto casing assembly.
Attention! After optional blower has been installed use the following steps
to properly align the upper louver and the reflector with the heat shield.
A. When replacing upper louver, be sure the bottom lip of upper louver
goes behind the heat shield.
B. When replacing reflector, be sure the top lip of reflector goes in front
of the heat shield.
Excessive Blower Wheel Noise
ATTENTION! If your blower assembly develops a squeal, hum or grinding
noise, it indicates dirt or debris on shaft of blower wheel. Use the following
steps to clean shaft of blower wheel.
1. Remove red rubber grommet with brass bushing or black rubber
grommet with brass bushing from end of blower wheel shaft opposite
motor.
2. Clean blower wheel shaft with cotton cloth.
3. Place 1 or 2 drops of all purpose oil on END of blower wheel
shaft.
4. Replace red rubber grommet with brass bushing or black rubber
grommet with brass bushing onto end of blower wheel shaft. Attention:
The red rubber grommet with brass bushing or the black rubber
grommet with brass bushing must "snap-back" into position.
5. Cleaning of blower wheel shaft is completed.
SRB-18T and SRB-30T
for Unvented Room Heaters BF-10, BF-20 and BF-30
HEATSHIELD
FA
N
CONTROL
BRACKET
(BF-10
ONL
Y)
FA
N
CONTROL
GROUN
D W
IR
E S
CRE
W
CORD
SET HOLE
IN
CASING BAC
K
REFLECTORAND LOUVERSARE
REMOVED FROM CASINGASSEMBL
Y
OPTIONAL BLOWER INSTALLATION INSTRUCTIONS