Repair Heater, Space, Electric (Convection Heaters #1, #2, #3, and #4). (FIGURE 3-7)

TM 55-1905-223-24-17

3-16. Repair Heater, Space, Electric (Convection Heaters #1, #2, #3, and #4). (FIGURE 3-7)

This task covers:

a. Repair

INITIAL SETUP :

Tools

Equipment Conditions

Tool kit, general mechanic's,

Circuit breaker switched OFF, power

panel locked and tagged "Out of

Tool kit, electrician's,

Service - Do Not Operate."

See TM 55-1905-223-10 for HVAC systems

Materials/Parts

operation and equipment location.

Tags, Item 1, Appendix C

Toggle switch P/N DK284-73

Knob P/N DFM-13

Thermostatic switch P/N G1-5280

Terminal block P/N 622-2BB

Manual thermostat P/N VDH-212153M

Heating element (Heater 1),

P/N DFM-7-11.0-1

Heating element (Heaters 2, 3, and 4)

P/N DFM-7-10.5-1

REPAIR

WARNING

Make sure electrical power is OFF to avoid personal injury.

Turn electrical power OFF to heater (1).

Replace toggle switch (5) and/or manual thermostat (10).

(1)

Remove screws (3) and lockwashers (4) and slide panel (9) out of cover (16) to reveal back

side of toggle switch (5) and manual thermostat (10).

(2)

Tag and disconnect wiring to defective toggle switch or thermostat.

(3)

Remove toggle switch or manual thermostat from panel (9).

(4)

Install new toggle switch (5) or thermostat (10).

(5)

Position panel (9) on heater cover (16) and install lockwashers (4)and screws (3).

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