Mitsubishi Electric PURY-EP200 Service Handbook page 310

[ IX Troubleshooting ]
3. Solenoid valve (SV1a), Capillary tube ASSY (CP1) replacement instructions
1. Applicable models
PURY-P250, 300YHM-A (-BS), PURY-EP200YHM-A (-BS)
......Low pressure twinning kit (optional accessory) is built in.
* The parts can be replaced without removing the Solenoid valve ASSY on the unit for the units that do not have
built-in low pressure twinning kit (optional accessory).
2. Parts to be serviced
NO. Item
1 Solenoid valve
(SV1a)
2
Capillary tube ASSY
(CP1)
3. Procedures
Removing the Solenoid valve (SV1a) and the Capillary tube ASSY (CP1) individually is difficult when the low
pressure twinning kit (optional accessory) is built in. Refer to the procedures
* Precautions for starting replacement
• Check that the main power supply is OFF.
• Check that no refrigerant is in the outdoor unit.
Heat exchanger
Debraze A and B, and remove solenoid valve ASSY
from the unit.
* Precautions for brazing
• Be sure to perform no-oxidation brazing when brazing.
• After brazing, check the condition around the brazing. After confirming no leakage, evacuate the air
inside. (*1)
• Braze carefully with the flame direction so that it does not burn cables and plates etc. in the unit.
*1: Refer to Chapter I [8] Vacuum Drying (Evacuation) for detailed proced
HWE0713A
Applicable models
PURY-P250, 300 YHM-A (-BS)
PURY-EP200YHM-A (-BS)
8, 10 HP PURY-P250YHM-A (-BS)
PURY-EP200YHM-A (-BS)
12 HP PURY-P300YHM-A (-BS)
A
(φ9.52 [3/8"])
Compressor cover
Low pressure
twinning kit
(optional accessory)
B
(φ6.35 [1/4"])
Solenoid valve ASSY
Replace Solenoid valve (SV1a) or Capillary tube ASSY
(CP1), and mount them again.
- 301 -
below and replace the parts.
NO.1
Solenoid valve
(SV1a)
NO.2
Capillary tube ASSY (CP1)
B
A
GB