[8-14 Solenoid Valve Block and Check Valve Replacement Instructions ]
- 374 -
HWE1314A
GB
3. Procedures
*
Precautions for starting replacement
•
Check that the main power supply is OFF.
•
Check that no refrigerant is in the outdoor unit.
Remove each part according to the 1)-3) procedures on the figure above right before replacing service parts.
Mount the removed parts back in place in a reversed procedure of 1)-3) on the figure next page after replacing
service parts.
(1) Solenoid valve block ASSY (SV4a, SV4b, SV4d) replacement procedures
• To remove Solenoid valve block ASSY
Remove the Solenoid valve block coil cover, Solenoid valve coil, and peripheral cables.
Remove the screw (M5) that fixes the supporting plate for Solenoid valve block and the unit base.
Debraze A-F parts (total 6 places).
Do not damage heat exchanger fins and peripheral piping devices when removing the Solenoid valve block ASSY.
Remove the screw (M5) that fixes the Solenoid valve block and the supporting plate for Solenoid valve block.
• To install Solenoid valve block ASSY
Remove the pipe from the brazed G part.
Fix the Solenoid valve block ASSY and the supporting plate with the fixing screw (M5).
Mount the Solenoid valve block ASSY replacement to the unit with care not to damage heat exchanger fins and
peripheral piping devices. Fix the supporting plate for Solenoid valve block and the unit base with the fixing screw (M5).
Braze A-F parts (total 6 places).
Mount the Solenoid valve block coil cover, Solenoid valve coil, and peripheral cables back in place.
*
Precautions for replacing Solenoid valve block ASSY
•
Be sure to perform no-oxidation brazing when brazing.
•
Place a wet towel on the Solenoid valve block when heating pipes to keep the temperature of the valve
from exceeding 120ºC.
•
After brazing, check the condition around the brazing. After confirming no leakage, evacuate the air inside.
•
Perform brazing with care of the flame direction so that it does not burn cables and plates etc. in the unit.
•
Remove the brazing part protecting heat exchanger from burning, and replace the service parts.
2
1
3
4
5
6
7
8
9
10
Содержание PURY-EP200YLM-A
Страница 9: ...viii ...
Страница 13: ... 2 HWE1314A GB ...
Страница 29: ... 1 5 Cautionary notes on installation environment and maintenance 18 HWE1314A GB ...
Страница 31: ... 20 HWE1314A GB ...
Страница 44: ... 2 6 System Connection Example 33 HWE1314A GB 2 Restrictions ...
Страница 58: ... 2 7 Example System with an MA Remote Controller 47 47 HWE1314A GB 2 Restrictions ...
Страница 77: ... 66 HWE1314A GB ...
Страница 105: ... 94 HWE1314A GB ...
Страница 125: ... 4 6 BC Controller Circuit Board Components 114 HWE1314A GB 4 6 2 Four Relay Board 4 6 3 Ten Relay Board ...
Страница 137: ... 126 HWE1314A GB ...
Страница 171: ... 160 HWE1314A GB ...
Страница 227: ... 6 11 Standard Operation Data Reference Data 216 HWE1314A GB ...
Страница 230: ... 219 HWE1314A GB 7 9 9 Error Code 7113 292 7 9 10 Error Code 7117 293 7 9 11 Error Code 7130 294 ...
Страница 231: ... 220 HWE1314A GB ...
Страница 393: ... 8 16 Troubleshooting Problems Using the LED Status Indicators on the Outdoor Unit 382 HWE1314A GB ...
Страница 395: ... 384 HWE1314A GB ...