Repair Heater, Duct Type, Stationary (Duct #1)

TM 55-1905-223-24-17

3-11. Repair Heater, Duct Type, Stationary (Duct #1)

This task covers:

a. Removal

b. Repair

c. Replacement.

INITIAL SETUP :

Tools:

Equipment Condition

Tool kit, general mechanic's,

Circuit breaker switched OFF, power

panel locked "Out of Service -

Tool kit, electrician's,

Do Not Operate."

See TM 55-1905-223-10 for HVAC

Materials / Parts

systems operation and equipment

location.

Tags, Item 1 Appendix C

Control contactor P/N C133-011

Control transformer P/N C316-022

Control contactor P/N C123-021

Thermostatic switch P/N C241-005

Thermostatic switch P/N C231-042

Thermostatic switch P/N C232-038

REMOVAL

WARNING

Make sure electrical power is OFF to avoid personal injury.

Open terminal box doors (5, 7, FIGURE 3-1).

Tag and disconnect electrical power supply wiring to heater (2).

Tag and disconnect thermostat wiring to the heater (2).

Withdraw power supply and thermostat wires from the terminal box.

Remove the mounting screws (1) holding heater to ducting.

Slide the heater (2) from the ducting.

Change 3

(3-16.2 BLANK)/3-16.1