Mitsubishi Electric EHPT20Q-VM2EA Service Manual page 60

DISASSEMBLY PROCEDURE
8. How to remove the water pump A (primary circuit)
< Water pump A >
(Water pump lower right in the cylinder unit)
(1) Remove the front panel.
(2) Disconnect the CNPA connector, the earth cable
and the CNPWM3 connector in the control box. (Photo
8-1 and 8-2)
(3) Release the water pump lead wire from the cable
clamps and the bands below the control box. (Photos
8-3 and 8-4)
(4) Open the pressure relief valve cap and lower the
tank internal pressure.(Photo 8-5)
< CAUTION >
After this step, recoat the removed earth cable with
RTV silicone rubber (KE-3490).(Photo 8-1)
Photo 8-3
A
cable
clamps
Photo 8-4
cable
clamps
GCH15010
Photo 8-1 (Larger scale of the A part)
CNPA
connector
earth cable
Recoat the removed earth
cable with RTV silicone
rubber (KE-3490) here.
Photo 8-2 (Larger scale of the B part)
B
CNPWM3
connector
cable
clamps
controller box
60
PHOTOS
screw
pressure relief valve caps
Photo 8-5