Panasonic WH-UD07CE5-A - Page 72

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13.1.8.1. Heating Mode Operation Time Chart
Exp:
1. 3 ways valve control:
• 3 ways valve switch and fix to room side.
2. Heat pump operate follow normal heating operation.
3. Backup heater operate follow normal operation.
4. Solar 3 way valve operates follow solar operation specification
5. 2 ways valve control:
• 2 ways valve opens.