TM 9-4120-404-14
3-29. HEATING ELEMENTS (HR1 through HR6).
This Task Covers:
a. Removal
b. Test
c. Installation
Initial Setup:
Took Required
Tool Kit, Service, Refrigeration, Unit (Item 1, Appendix B)
Material/Parts Rewired
Wire Tags (Item 21, Appendix E)
Equipment Condition
Air conditioner shut down and cool.
Air conditioner disconnected from power source.
Front cover removed (see para. 3-27).
WARNING
HIGH VOLTAGE
is used in operation of this equipment.
DEATH ON CONTACT
may result if personnel fail to observe safety precautions.
Never work on electrical equipment unless there is another person nearby who is
familiar with operation and hazards of equipment and who is competent in
administering first aid. When technician is aided by operators, he must warn them
about dangerous areas.
Whenever possible, input power supply to equipment must be shut off before
beginning work. When working inside, after power has been turned off, always
ground every part before touching it. Be careful not to contact high voltage
connections when installing or operating this equipment.
Whenever nature of operation permits, keep one hand away from equipment to
reduce hazard to current flowing through vital organs of body. Do Not operate
equipment without all guards, louvers, and covers in place and tightly secured.
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