CurtLeeN
Member
- Location
- Rockwall, Texas
So I have a job i'm looking at, The Apartment building has 15 apt units (downstairs and upstairs) and 1 Laundry room for everyone to share. The Owner has the apts all bills paid so therefore the Electric bill for the whole building is only (1) meter, Everything in the building is Gas. It has one Main breaker/breaker enclosure feeding a gutter on the backside of the Panel (located indoor), Out of the gutter has (4) #2 or possible #1 AL SE wire running up to the attic. Each AL SE feeds (4) apt units, The panel in each apartment only has (2) Single pole 20a breakers and a single pole 15a that feed the igniter on the blower unit in the ceiling. Since the HVAC company is installing mini-splits, then the gas AH will be changed with a Heat strip of 5kw....so the 15a will be replaced with a 2 pole 30a breaker. So I can use the sq ft X 3va to determine if the #2 AL SE will handle it, but then again with all 15 units on a 200a MB will also be a factor. I did the calculation and the 200a MB will be good but not sure about the #2 AL SE knowing that is feeds (4) apt units with that extra 5kw each. It will be helpful if anyone has a solution to this, Changing the #2 AL SE will be very difficult to change that the Owner is not willing to spend.