Mitsubishi Electric e Series Service Handbook page 152

[ IX Troubleshooting ]
1
Right side service panel × 2
M5 screw × 19
2
< Right side >
Drain valve
3
< Left side >
4
HWE20010
Left side service panel × 2
M5 screw × 19
< Opposite side of the service side >
Drain valve
Check joint
(in order from top
to bottom)
· HP 2B
· HP 2A
· HP 1B
· HP 1A
· LP 2B
· LP 2A
· LP 1B
· LP 1A
< Right side >
Remove the service side panels from the
1
opposite side of the service side.
Panel: Fixed with M5 screws (3.0±0.3 Nm)
1 Completely drain the water from the water circuit.
< Left side >
Collect the refrigerant through the check joint
1
(low-pressure (LP) side) on the left side of the
unit next to the plate heat exchanger side.
* Each refrigerant circuit is independent.
Only collect the refrigerant from the system
whose heat exchanger needs to be replaced.
■
Refrigerant (R32)
EAHV type: 11.5 kg per system
EACV type: 4.7 kg per system
Remove the pillar when replacing the heat
1
M5 screw × 2
exchanger in the 1-system by unscrewing the
four M5 screws.
Pillar: Fixed with M5 screws (3.0±0.3 Nm)
Pillar
* When the pillar is removed, the frame, sag down
by its own weight.
M5 screw × 2
- 143 -
GB