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TM 55-1905-223-24-18-2
3-220. Replace/Repair Hot Water Heater.
This task covers: a. Removal,
b. Disassembly,
c. Repair,
d. Assembly.
e. Replacement.
Equipment Condition
Tool kit, general mechanic's,
At ship service switchboard, set HOT
WATER HEATER circuit breaker to OFF
Tool kit, electrician,
position. Tag switch "Out of
Service - Do Not Operate."
Torque wrench kit P/N 3377216
Hot water heater P/N DSE-80- 12
Thermostatic switch P/N 5107
Thermostatic switch P/N 5130- 1 00
Teflon tape, Item 5, Appendix C
Warning tags, Item 1, Appendix C
Anode, corrosion P/N 5206-39
(P/N 5206-18 for 2001-2003)
To prevent burns to personnel from hot water heater, ensure
that water heater has been turned off 24 hours prior to any work
to allow water and parts to cool before performing maintenance.
a. Close hot water supply valve (1, Figure 3-208).
b. Close cold water isolation valve (3).
c. Drain hot water heater (12) through drain faucet (9).
d. Open hinged access door (10).
e. Install tags and disconnect electrical leads at terminal block (11).
f. Close hinged access door (10).
g. Disconnect cold water piping (6) and hot water piping (2).
h. Remove bolts (7) and nuts (8) from base of hot water heater.


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