3-Way Valve Installation - Mitsubishi Electric QAHV-N560YA-HPB Installation & Operation Manual

* 3-way valve installation

Please connect 3-way valve on the lower part of the storage tank except when the unit is in operation. Anti-
freezing operation will keep the water in the tank circulated and water storage tanks can become thermally
stratified.
Anti-freezing operation
Residual running of the pump
Hot water storage operation
* The ON/OFF control of 3-way valve
depends on the output type "(r) EXTERNAL
DEVICE" on page 58.
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