Operation Time For Unit Rotation - A.O. Smith T-M32 Service Manual

12-10. Operation time for unit rotation

The unit that turns on first is whichever unit the T-M32 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 T-M32s Rotation
A rotation occurs when:
ON/OFF cycles (×100 times) or Hours of operation (12 hours)
Priority Unit
Priority Unit
Priority Unit
Unit
No.1
1
4
3
T-M32 / T-M32 ASME Service Manual
Unit
No.2
2
Next step
1
Next step
4
62
CONFIDENTIAL
Unit
No.3
3
2
1
Ver. 1.03
Unit
No.4
4
3
2