TM 10-3510-220-24
2-43. WATER HEATER PRESSURE RELIEF VALVE
This task covers:
a. Inspection
b. Removal
c. Installation
INITIAL SETUP:
Tools
General Safety Instructions
General mechanic’s tool kit
WARNING
Materials/Parts
High voltage is present on this equipment. Do n ot
Pressure relief valve 6-1-81118
perform maintenance with power on. Death or
(81337)
serious injury may result.
Pipe joint compound
(Item 5, App C)
WARNING
Equipment Condition:
The water vessel becomes hot during operation and
injury may result from contact with the water heater
TM 10-3510-220-10, Tarp assembly
before it cools.
Allow water heater to cool before
removed.
servicing the high-limit temperature control.
Water heater cool down.
INSPECTION
WARNING
The water vessel becomes hot during operation and injury may result
from contact with the water heater before it cools. Allow water heater to
cool before servicing the high-limit temperature control.
1. Inspect water pressure relief valve for damage and unusual leaks.
2. Pull ring on pressure relief valve (4) and check for operation.
REMOVAL
WARNING
High voltage is present on this equipment. Do not perform maintenance
with power on. Death or serious injury may result.
WARNING
The water vessel becomes hot during operation and injury may result
from contact with the water heater before it cools. Allow water heater to
cool before servicing the high-limit temperature control.
1. Turn off power limit switch (1) and disconnect power cable.
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