TM 9-2320-240-34-2
17-18. PERSONNEL HEATER lGNITER AND IGNITION CONTROL UNIT REPLACEMENT (Contd)
c. Ignition Control Unit Installation
NOTE
Perform steps 1 through 3 for early model heaters.
1. Install new lockwasher (6) and ignition control unit (3) on heater housing (4) with three new screw-
assembled lockwashers (5).
2. Install two ignition control leads (2) on flame detector switch (7) with two new screw-assembled
lockwashers (1).
3. Install ignition control lead (11), receptacle lead (8), and thermostat lead (9) on overheat stitch (10)
with new nut-assembled lockwasher (12).
d. Igniter Installation
CAUTION
Installation of the igniter is basically the same for early and late
model heaters. This procedure is for early model heaters.
1.
Install igniter tube (15) in heater housing (4) with new screw-assembled lockwasher (14).
CAUTION
Igniter is fragile. Use care when removing igniter. Failure to do so
may result in damage to equipment.
2.
Install new igniter (16) in igniter tube (15) and press and turn one-fourth turn to right to hold
in place.
3.
Install igniter hatch cover (17) on heater housing (4) and hold in place with two fly screws (13).
4.
Conned-igniter leads (19) and (20) on ignition control unit (3) and igniter hatch cover (17).
5.
Install new lockwasher (22), ground strap (21), and receptacle ground lead (23) on ignition control
unit (3) with new nut-assembled lockwasher (18).
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