TM 5-4220-227-14
5-13. Heater/Chiller Unit (CCU-03).
This task covers:
a.
Replace
INITIAL SETUP
Tools
Equipment Condition
General Mechanic's Tool Kit
Chamber shut down (para. 2-15).
(NSN 5180-00-177-7033)
Materials/Parts
Heater/Chiller Unit
Replace. (figure 5-10)
(1)
Unlatch two latches (1), open hood assembly door (2) and install two supports (3) and pins (4).
(2)
Move heater/chiller fluid supply valve (5) and return valve (6) to the fully closed position.
(3)
Move scrubber fan switch (7) and chiller fan switch (8) to OFF position.
(4)
Remove six nuts (9), lockwashers (10) and bolts (11 ) that secure the heater/chiller unit (12) to the deck plate
bracket (13).
(5)
Remove heater/chiller unit (12) from deck plate bracket (13).
(6)
Disconnect electrical connector (14) from heater/chiller unit (12).
CAUTION
Keep the open ends of the fluid hoses raised above the level of the unit to prevent draining the unit.
(7)
Loosen fittings (15) and (16) and remove heater/chiller unit fluid supply hose (17) and return hose (18).
(8)
Position replacement heater/chiller unit (12) close to scrubber assembly (19).
(9)
Install heater/chiller unit fluid supply hose (17) and return hose (18) and tighten fittings (16) and (15).
(10)
Connect electrical connector (14) to heater/chiller unit (12).
(11)
Slide heater/chiller unit into position against deck plate bracket (13).
5-26
