35,000 BTU/Hr CANADIAN
PROPANE CONSTRUCTION HEATER
SERVICE
PROCEDURES
(Continued)
7. Place fan onto motor shaft.
IMPORTANT : When placing fan onto
motor shaft, make sure part number
stamped on fan is facing motor.
8. Attach fan nut to end of motor shaft.
Tighten fan nut firmly.
9. Place motor and fan guard into rear of
heater shell. Make sure power cord is
properly located (see Figure 12).
Figure 12 - Replacing Motor and Fan
Guard into Heater
10. Insert three screws through heater shell
and into fan guard. Tighten screws
firmly.
IGNITOR
1. Remove motor and fan guard from
heater (see Motor, page 7, steps 1 and 2).
2. Remove black ignitor wire from piezo
ignitor. Access ignitor wire through
underside of heater base (see Figure
13). Push wire up through bushing in
heater shell.
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Ignitor Wire
Figure 13 - Removing Ignitor Wire from
Piezo Ignitor
3. Remove ignitor mounting screw from
rear head using nut-driver or standard
screwdriver (see Figure 14).
Rear Head
Ignitor
Ignitor
Mounting
Figure 14 - Removing Ignitor Mounting
Screw and Ignitor
4. Remove ignitor from rear head.
5. Install new ignitor. Attach ignitor to rear
head with ignitor mounting screw.
6. Run ignitor wire from new ignitor
through bushing in heater shell. Attach
ignitor wire to piezo ignitor.
7. Set gap between ignitor electrode and
target plate to .17" (4.3 mm)
(see Figure 15).
8. Test for spark.
8
Piezo
Bushing
Underside
of Heater
Base
Figure 15 - Clearance between Ignitor
Electrode and Target Plate
WARNING: Make sure heater
is disconnected from propane
supply. Heater could ignite caus-
ing severe burns.
Push piezo ignitor button and watch
forspark between ignitor electrode and
target plate.
9. Place motor and fan guard into rear of
heater shell (see Motor, page 7, steps 9
and 10).
Target
Gap
Ignitor
103907