TM 10-6640-216-13&P
4-24. REPLACE ENVIRONMENTAL CONTROL UNIT REMOTE CONTROL.
This task covers:
a. Removal
b. Installation
INITIAL SET-UP:
Tools Required
General Mechanics Tool Kit, Appendix B, Item 1
Equipment Condition
Remove damper assembly, paragraph 4-17
General Safetv Instructions
WARNING
ELECTRICAL SHOCK
Before performing any maintenance actions on electrical equipment
ensure all electrical power has been turned off. Death or serious
injury may occur from failure to do this.
REMOVAL
Remove environmental control unit remote control. See figure 4-16
a.
b.
c.
d.
e.
f.
g.
h.
Turn the environmental control unit mode switch to the OFF position.
Open CB3 and CB4 circuit breakers located in the panelboard assembly.
Remove temperature selector switch sensing bulb clamp located on top of evaporator coil
by removing two clamp screws and two lockwashers.
Remove sensing line from mount plate. Be sure not to break or kink sensing line during
removal.
Turn the environmental control unit remote control unit connector post screw
counterclockwise until post is disengaged.
Pull defective control module straight out of junction box.
Carefully pull temperature sensing line and bulb through slot in bottom of junction box.
Remove environmental control unit remote control.
INSTALLATION
Install environmental control unit remote control. See figure 4-16.
a.
Carefully push temperature sensing line and bulb through slot in bottom of junction box.
b.
Push new control module straight into junction box.
c.
Turn the connector post screw clockwise until post is fully engaged.
4-60
