Table of Contents
[ IX Troubleshooting ]
1. Explained below are procedures for replacing water-cooled heat exchanger assembly parts.
2. Applicable models
• PQHY-P350, P400, P450, P500YLM-A
3. Service parts list
4. Procedures
*Precautions for starting replacement
• Check that the main power supply is OFF.
• Check that no refrigerant is in the heat source unit.
Remove each part according to the 1)-6) procedures before replacing service parts.
Mount the removed parts back in place in a reversed procedures of 1)-6) after replacing service parts.
1) To remove the Duct
Remove the screw (total 4 places).
2) To remove the 4-Way Valve Assy
Debraze the pipe. (total 6 places)
HWE15060
- 389 -
After removing Duct.
After removing 4-Way Valve Assy.
GB
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Table of Contents
Troubleshooting
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