TM 10-3510-209-24
2-32. WATER HEATER ASSEMBLY (CONT)
SERVICE (Cont)
2.
Remove drain plug (2) and drain water,
sediment, and contaminated fuel. Discard contaminated
fuel.
3.
Install drain plug (2).
TEST
1.
Test operate water heater.
a.
Operate
water
heater.
(Refer
to
TM 10-3510-209-10).
b.
Observe temperature gage (3). Water
heater burner should shut down automatically when
temperature gage reads temperature set on operating
temperature control (6) 10F.
NOTE
Water temperature will continue to
rise after burner shutdown due to
heat transferred to water from burner
chamber.
c.
Observe fuel pressure gage (4) for normal indication of 75 to 80 psi (517 to 552 kPa).
2.
Shut down water heater after test.
ADJUSTMENT
WARNING
Exhaust duct is hot and can cause injury to personnel if hand protection is not worn when
handling. Wear protective gloves for maximum protection. Wear protective gloves when handling
ducts.
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