Hello All,
I've been a mainly residential electrician for about 9 years now. Obviously learning a bit as I go by doing new jobs. I'm bidding a "quasi" residence up in the boonies that is requiring a sump pump for it's waste water treatment. I've done one of these before for a candy store that was located indoors. This one is located outside about 10 feet away from the building. It has 2 - 1 hp pumps rated at 240 volt (12.3 amps each). The alarm panel for this is going to be located in a utility room in the building roughly 70 feet away.
Question #1: How is the connection to this unit made typically? Will the pumps come with factory installed cords long enough to plug in to a receptacle on the building 10 feet away? Are they hard wired into a disconnect on the building 10 feet away? Do I need to install a 4x4 near the pit that will have the disconnect for these pumps and then conduit over to the building?
Question #2: Do I run 2 separate 20 Amp / 240 Volt circuits to the pumps? Or do I run to a small load center (40 Amps) near the pit and then branch off from there?
Question #3: Since the alarm panel is going to be approximately 70 feet from the actually pit, is there control wiring that runs the length?
Any advice is appreciated.
I really want to get this job but this is the only item of the bid I am having questions about.
Thanks and Happy Holidays!
Ted
I've been a mainly residential electrician for about 9 years now. Obviously learning a bit as I go by doing new jobs. I'm bidding a "quasi" residence up in the boonies that is requiring a sump pump for it's waste water treatment. I've done one of these before for a candy store that was located indoors. This one is located outside about 10 feet away from the building. It has 2 - 1 hp pumps rated at 240 volt (12.3 amps each). The alarm panel for this is going to be located in a utility room in the building roughly 70 feet away.
Question #1: How is the connection to this unit made typically? Will the pumps come with factory installed cords long enough to plug in to a receptacle on the building 10 feet away? Are they hard wired into a disconnect on the building 10 feet away? Do I need to install a 4x4 near the pit that will have the disconnect for these pumps and then conduit over to the building?
Question #2: Do I run 2 separate 20 Amp / 240 Volt circuits to the pumps? Or do I run to a small load center (40 Amps) near the pit and then branch off from there?
Question #3: Since the alarm panel is going to be approximately 70 feet from the actually pit, is there control wiring that runs the length?
Any advice is appreciated.
I really want to get this job but this is the only item of the bid I am having questions about.
Thanks and Happy Holidays!
Ted