Fan SMT1500I

Anonymous user · ‎2021-06-29

Fan on this ups, is always on or start only during a self test and back-ups mode?
Thanks

BillP · ‎2021-06-29

The SMT unit utilizes a 2 speed fan High and Low. It is always running at low speed and would switch to high if the conditions below are met.

1. The UPS is on battery.
2. The UPS is charging the battery.
3. The UPS has a load greater than 75%.
4. The internal temperature of the UPS has reached greater than 104 degrees F (40 degrees C).

See Answer In Context

BillP · ‎2021-06-29

The SMT unit utilizes a 2 speed fan High and Low. It is always running at low speed and would switch to high if the conditions below are met.

1. The UPS is on battery.
2. The UPS is charging the battery.
3. The UPS has a load greater than 75%.
4. The internal temperature of the UPS has reached greater than 104 degrees F (40 degrees C).