Panasonic WH-SXC09D3E5 Service Manual page 50

5. Solar 3 way valve
• Solar 3WV operates follow solar operation specification.
* Under solar priority is set condition, when solar 3WV is ON, booster heater turn OFF
* Under solar priority is not set condition, solar 3WV only can ON during heating heat-up interval.
6. 2 ways valve control:
• 2 ways valve opens.
Heat + Tank Mode (Heating priority not set)
Under Solar Priority Set Condition:
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