I have a pump with labels Hayward SW15851X20TL and AO Smith Century 1081 SP1520Z1ESC. I want to investigate replacing the pump motor with a 2-stage pump, but don't know how to research what is compatible. Any guidance, suggestions, or questions are welcome.
Replace pump with 2-speed
- Thread starter IL_WS
- Start date
Can you provide more information off the motor plate: HP, SF, etc
I am not able to easily find the number you posted. You just need to match the frame type (48Y I think) and the SFHP (SF*HP) for the high speed.
Likely you could get one of these, but I am not sure which one:
Power Flo LX Pump Motors - INYOPools.com
I am not able to easily find the number you posted. You just need to match the frame type (48Y I think) and the SFHP (SF*HP) for the high speed.
Likely you could get one of these, but I am not sure which one:
Power Flo LX Pump Motors - INYOPools.com
All the info from the motor plate
FR R48Y
Type SP
HP 2.0
SF SPL
Code H
RPM 3450
Volts 115
HZ 60
Class B
PH 1
Encl DP
Amps 15.0
Amb 50
Time Cont
Form PHM
The current pump is 2HP. Is there a rough estimate way to determine if a smaller size would be adequate?
FR R48Y
Type SP
HP 2.0
SF SPL
Code H
RPM 3450
Volts 115
HZ 60
Class B
PH 1
Encl DP
Amps 15.0
Amb 50
Time Cont
Form PHM
The current pump is 2HP. Is there a rough estimate way to determine if a smaller size would be adequate?
Well, it is not really a 2HP. The fact that the Service Factor (SF) is listed as SPL, means that the SF less than 1.0. So, it might be closer to 1.5 SFHP, but I am not 100% sure now what is the appropriate replacement motor.
You can certainly go to a smaller pump (1HP is generally plenty), but the motor needs to be at least the size as the impeller in the pump. So to go to a smaller motor, would also likely require a smaller impeller.
Can you confirm that your motor is wired for 115V and not 230V?
You can certainly go to a smaller pump (1HP is generally plenty), but the motor needs to be at least the size as the impeller in the pump. So to go to a smaller motor, would also likely require a smaller impeller.
Can you confirm that your motor is wired for 115V and not 230V?
I do know that it is wired for 115V.
Does a different size impeller imply that they may not mate together, or something else?
Also, does anyone know what the R represents in the frame R48Y?
Does a different size impeller imply that they may not mate together, or something else?
Also, does anyone know what the R represents in the frame R48Y?
Based on reading another thread considering 2-speed vs. variable speed pump, I checked out my electric supplier (ComEd) for rebates. There is a $400 rebate for in-ground pools only. I'm sure there is a reason somewhere, but I immediately focus on the injustice since I have an above ground pool.
I'm in no rush to upgrade my pump. It's only in it's 3rd season, but if the cost breakeven point is under 5 years, I would rather do it sooner rather than later.
Another thing I'm considering is going from my current 2HP (or possibly 1.5 SFHP) to a much smaller unit. I don't have solar panels, a spa, or any water features. I use the pump for circulation, cleaning, and heating (gas).
I have read comments that said a 1/2 HP pump would be adequate in seemingly similar setups, but how can I determine in advance?
I'm in no rush to upgrade my pump. It's only in it's 3rd season, but if the cost breakeven point is under 5 years, I would rather do it sooner rather than later.
Another thing I'm considering is going from my current 2HP (or possibly 1.5 SFHP) to a much smaller unit. I don't have solar panels, a spa, or any water features. I use the pump for circulation, cleaning, and heating (gas).
I have read comments that said a 1/2 HP pump would be adequate in seemingly similar setups, but how can I determine in advance?
I would suggest sticking with a 1HP 2-speed as many of the AG pumps have the low service factor ... in fact the way that manufacturers play with the numbers, a 1/2HP, 3/4HP and 1HP all could be identical to each other.