710 / 710 ASME Service Manual
Ver. 1.00
62
CONFIDENTIAL
12-10. Operation time for unit rotation
The unit that turns on first is whichever unit the 710 decides is the primary unit.
The priority unit will rotate when it reaches 100 ON / OFF cycles or after 12 hours of operation.
NOTE: The priority unit is the unit that turns on first when there is a hot water demand.
When there is a black out and/or cut off for over 50 minutes, priority unit will switch back to
Unit #1.
Example: Four units of 710 models Rotation
A rotation occurs when:
ON/OFF cycles (×100 times) or Hours of operation (12 hours)
Unit
No.1
Unit
No.2
Unit
No.3
Unit
No.4
Priority Unit
1
2
3
4
Priority Unit
4
1
2
3
Priority Unit
3
4
1
2
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