- Jul 8, 2011
- 41
I have decided to replace my pool's single speed pump with a 2-speed.
My TDH is 42.5 with Kreepy Krawly operating and filter clean. On high speed (3450 rpm) I am looking for 63 GPM.
My existing pump is a 1hp Challenger with 56Y frame motor.
I have an Intermatic T104 timer and I already ordered a T106 for the 2-speed.
My initial idea was to look at pump curves for 2-speed pumps, find my matches, then buy only a matching 56Y 2-speed motor and re-use the rest of my existing pump. The price difference between a new pump and a new motor appears to be more than double with very little justification.
I found two drawbacks to this idea. The first is that 2-speed pumps have impellers that are designed for optimal flow at both 3450 and 1725 RPM, and no such impeller exists for the Challenger that I am aware of. The second drawback is that I can't seem to match up the motors to my selections at AO smith.
My ideal pumps thus far are: Pentair Superflo 340042 and Sta-Rite Supermax PHK2RAY6E-102L.
Both motors have the same specification: 1HP 230V 6.0/2.3 FLA. They both use Impeller part# 355067.
I still need to look at Hayward and Jandy pumps.
Any suggestions or advice?
My TDH is 42.5 with Kreepy Krawly operating and filter clean. On high speed (3450 rpm) I am looking for 63 GPM.
My existing pump is a 1hp Challenger with 56Y frame motor.
I have an Intermatic T104 timer and I already ordered a T106 for the 2-speed.
My initial idea was to look at pump curves for 2-speed pumps, find my matches, then buy only a matching 56Y 2-speed motor and re-use the rest of my existing pump. The price difference between a new pump and a new motor appears to be more than double with very little justification.
I found two drawbacks to this idea. The first is that 2-speed pumps have impellers that are designed for optimal flow at both 3450 and 1725 RPM, and no such impeller exists for the Challenger that I am aware of. The second drawback is that I can't seem to match up the motors to my selections at AO smith.
My ideal pumps thus far are: Pentair Superflo 340042 and Sta-Rite Supermax PHK2RAY6E-102L.
Both motors have the same specification: 1HP 230V 6.0/2.3 FLA. They both use Impeller part# 355067.
I still need to look at Hayward and Jandy pumps.
Any suggestions or advice?