They can be used by the fire department to disconnect power to the unit. They also serve as enclosures for overcurrent protection if they house a fuse.ĭisconnects are often found on the side of your home where the electric meter is mounted or the AC unit installed. Low voltage disconnects are found in a switchboard or as a feeder disconnect.
Also included in this category are switchboard, panelboard/wall mount, fused or non-fused and electrically closed/opened or neither.
The disconnect must be within sight from the AC unit to prevent someone who doesn’t know the technician is working on the unit from turning the power on causing unit damage or human life concerns.Ĭommercial duty disconnects include load break or non-load break switches. Disconnects are not used for regular control of the circuit, but are employed as a safety precaution. A disconnect, disconnect switch or isolator is used to ensure that the electrical circuit is completely off. Work on your AC unit may require the technician to cut power to the unit to complete repairs or perform a diagnostic screening. Why?Įlectrical work can be dangerous and complicated. I Was Told I Need a Disconnect on my AC Unit. … In helping you make Informed Decisions – No Charge DIY Instant Guides.SEER Ratings, HSPF Ratings, AFUE Ratings and BTU.
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