Jako su konzistentni u info, vidi boldano...
A dobro da imaju i SMC modele koji se nigdje ne spominju
https://www.apc.com/us/en/faqs/FA156553/
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All "SU" model units and earlier "SUA " units utilize a single speed fan. The fan will only be on during the following scenarios:
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 140 degrees F (60 degrees C). Note, for 4th Generation units (model number begins with SUA) the temperature range has changed. For these models, the internal temperature will have to be greater than 104 degrees F (40 degrees C)
Later "SUA" model units utilize a 2 Speed fan. On these units the fan will always be on in low speed mode, and will switch to high speed mode should one of the following events occur:
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).
All "SURT" and "SRT" model units utilize a fan which is always on and should be spinning regardless of UPS operation or internal temperature.
"SMT" and "SMX" models use a variable speed fan. The speed is determined by multiple factors such as operating temperature, mode of operation, and load.
This operation may vary depending on the model and firmware revision of the UPS.
Ensure your UPS has the most recent firmware revision installed for optimal fan operation. Published for:APC USA
https://community.se.com/t5/APC-UPS-...00/td-p/297165
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Posted: 2021-06-28 09:23 AM
This reply was originally posted by Matt on APC forums on 12/7/2018
Hi Corentin The SMT1000 does not have a fan, a fan is introduced to the design of the 1400VA Smart UPS and above.