Mitsubishi Electric EHPT20Q-VM2EA Service Manual page 67

DISASSEMBLY PROCEDURE
11. How to remove the pressure relief valve / air vent /
manometer
< Pressure relief valve >
(1) Remove the front panel.
(2) Open the pressure relief valve cap and lower the
tank internal pressure.(Photo 11-1)
(3) Remove the quick connection, and then remove the
pressure relief valve together with the nipple from the
pipe.(Photo 11-1 and 11-2)
(4) Using two spanners, remove the screw and the
pressure relief valve.
< Pressure air vent >
(1) Remove the front panel.
(2) Open the pressure relief valve cap and lower the
tank internal pressure.(Photo 11-3)
(3) Using two spanners, remove the screw and the
pressure air vent.(Photo 11-4,11-5,11-6)
Photo 11-4
GCH15010
pressure relief
valve cap
pressure relief
valve
pressure air vent
pressure air vent
(Turn it with the spanner and take it off)
Photo 11-5
67
PHOTOS
Photo 11-1
quick
connection
Photo 11-2
nipple
Photo 11-3
pressure relief
valve cap
A
When fixing pressure air vent
in place with the spanner,
use these flat sections A.
Photo 11-6