Deep Well Pump

[TCBC]

I am considering installing a Grundfos 11SQF deep well pump on my property. My understanding is the pump will operate on either 48V solar or 230V single phase.
Question, will the EG4 6000XP provide the correct AC voltage utilizing the split phase for 230VAC single phase requirement?

 

[sunshine_eggo]

Yes. They'll run on split phase 240V as well (only the L1 and L2 hots + ground - no neutral). The SQ series is awesome - no surge.

 

[jolondon]

I am considering installing a Grundfos 11SQF deep well pump on my property. My understanding is the pump will operate on either 48V solar or 230V single phase.
Question, will the EG4 6000XP provide the correct AC voltage utilizing the split phase for 230VAC single phase requirement?

Can you explain to me what this means...48v solar or 230 volt single phase. I know the inverter is 48 volts and it can output up to 22 but I don't understand how the two options work. I am new to this. I hvae the same inverter as you have and am considering getting the SQ05-140.

 

[TCBC]

Thanks Eggo. That is what I was thinking, L1 and L2. I just was a little confused about the split phase being connected to a single phase motor.
Regarding the dual voltage capabilities, as far as I can tell this is handled through the design of the motor. Meeting with an installer today to get the full details.

 

[OM617YOTA]

I have a Grundfos SQE as well, runs off two split phased LV2424's. You'll have no trouble.

 

[sunshine_eggo]

Thanks Eggo. That is what I was thinking, L1 and L2. I just was a little confused about the split phase being connected to a single phase motor.
Regarding the dual voltage capabilities, as far as I can tell this is handled through the design of the motor. Meeting with an installer today to get the full details.

Choice for AC or DC is driven significantly by voltage drop/wire resistance/wire cost. A deep well @ 240VAC can use thinner wires than a deep well pump at 48VDC.

 

[outboard1196]

Can you explain to me what this means...48v solar or 230 volt single phase. I know the inverter is 48 volts and it can output up to 22 but I don't understand how the two options work. I am new to this. I hvae the same inverter as you have and am considering getting the SQ05-140.

The SQF series pumps have a wide input voltage using either AC or DC power direct to the pump.
Regular sq pumps use AC power only.

 

[Madcodger]

We could not be happier with our regular (AC only) SQ pump. 280 foot well about 100 feet away from house and we can't even tell when it comes on, in terms of surge demand. Fantastic piece of equipment.

 

[ChrisG]

We could not be happier with our regular (AC only) SQ pump. 280 foot well about 100 feet away from house and we can't even tell when it comes on, in terms of surge demand. Fantastic piece of equipment.

Agree on SQ 240v pump, it’s fantastic. My old goulds pump had an inrush of 38a starting and ran at 7a. My SQ starts at 2a and ramps up over a few seconds to 6.3a. 6000xp handles it with no problem, don’t even know when it kicks on.

 

[tschmidty]

Be careful about your language as 230v single phase is a standard voltage in Europe, here in the US we use 240v 2 phase. The Grundos will most likely work off 240v 2 phase.

 

[ChrisG]

Be careful about your language as 230v single phase is a standard voltage in Europe, here in the US we use 240v 2 phase. The Grundos will most likely work off 240v 2 phase.

Residential electric service in the United States (120/240 Vac) is sometimes called two-phase service but this is NOT correct. It is only single-phase, since both line voltages are derived from a single phase of a distribution transformer with a center tapped neutral and are 180° out of phase with each other.

 

[jolondon]

Agree on SQ 240v pump, it’s fantastic. My old goulds pump had an inrush of 38a starting and ran at 7a. My SQ starts at 2a and ramps up over a few seconds to 6.3a. 6000xp handles it with no problem, don’t even know when it kicks on.

thanks a lot..gives me a lot more confidence.

 

[outboard1196]

thanks a lot..gives me a lot more confidence.

I have an sq pump as well (120v) I run it off inverter only no problems.

 

[TCBC]

The multi-voltage regulation is performed within the pump itself.

 

[Scottybdiving]

I recently replaced a 28 year old Goulds 240V with a Grundfos 6 SQF 2. I run it off of 2 x 370W PV's and have the manual transfer switch to 120V. The US version of the IO 101 SFQ switch box comes as 120V but I understand outside the US it is 240V. The pump can operate on 30 - 300 VDC or 90-240V single phase AC. So far it has been impressive and keeps the 5000 gal storage tank full.

 

[GRMRC]

We could not be happier with our regular (AC only) SQ pump. 280 foot well about 100 feet away from house and we can't even tell when it comes on, in terms of surge demand. Fantastic piece of equipment.

I am 540 ft down the hole but I also have 7,500 gallons on the surface. Well only runs approx. once every two weeks.
Have 2 85 gallon pressure tanks so the booster pump doesn’t cycle every time a faucet runs.