VSP Pump trips breaker

[stevied]

Hi. New on TFP. Any help appreciated.
32K gal gunite pool, DE filter, Hayward Tristar VS 950 omni pump
Hi. Recently replaced Hayward 1 HP superpump with omni 950 VSP. IT continuously trips 20 amp siemans breaker (wired for 230 V, requires 15 amp breaker). Happens at slow and high rpms, (1725 and 3450 rpm). Filter Operating at 25-30psi at high rpm, 7-10psi at 1725 (with minimal water output). Have backwashed multiple times. Will replace breaker, but never had a problem with single speed super pump(3450 rpm). Hard to believe this is problem. understand VSP pumps are sensitive to trip breakers, but happens even with priming. Why is high speed operating at such high psi -30? Mechanical filter problem?
Pump problem? (No leaks in basket). Almost no water movement at lower rpms after several hrs? Not skimming well at 1725 rpm. Any help appreciated. thanks, Steve.

 

[Texas Splash]

Welcome to TFP! Seems you may have two separate issues:
1 - Electrical draw/heat causing breaker to trip
2 - Filter clogging up too fast after backwash.

For the breaker scenario, pool electrical systems typically use a 20 amp breaker/circuit. It's very possible the amperage draw on that motor is what's causing the 15 amp breaker to trip. Do you know if the conductors (wires) are 12 GA or thicker? If they are only 14 ga that could also be the issue.

As for the filter pressure increasing after backwash, that could be an organic issue, especially with a DE filter. Can you post a full set of water test results? That would be where we need to stat on that issue.

Let us know how it's going and if you have any questions. Enjoy the forum.

See ---------------> Pool Care Basics

 

[ChrisLPC]

I am having similar issues with the VSP’s. We have them on 20amp breakers and they still trip, but only once a day. Thanks for the info on wire size this could help.

 

[1poolman1]

Hi. New on TFP. Any help appreciated.
32K gal gunite pool, DE filter, Hayward Tristar VS 950 omni pump
Hi. Recently replaced Hayward 1 HP superpump with omni 950 VSP. IT continuously trips 20 amp siemans breaker (wired for 230 V, requires 15 amp breaker). Happens at slow and high rpms, (1725 and 3450 rpm). Filter Operating at 25-30psi at high rpm, 7-10psi at 1725 (with minimal water output). Have backwashed multiple times. Will replace breaker, but never had a problem with single speed super pump(3450 rpm). Hard to believe this is problem. understand VSP pumps are sensitive to trip breakers, but happens even with priming. Why is high speed operating at such high psi -30? Mechanical filter problem?
Pump problem? (No leaks in basket). Almost no water movement at lower rpms after several hrs? Not skimming well at 1725 rpm. Any help appreciated. thanks, Steve.

Be sure to get a GFCI breaker, Siemans is the best for a VSP.
You're comparing a medium-head 1hp Super Pump flow against a high-head 2.7hp TriStar. TriStar moves much more water and is capable of higher pressures than the Super Pump.

If that is truly 25-30 PSI at 1725, you have a very clogged filter or a clog further down the line after it (not likely unless a valve is in the wrong position). Does the gauge return to 0 when the pump is off?

Was an acid clean done to the grids? Despite that being the most recommended, and erroneous, way to do it, if you don't remove oils from the grids first, and there's always oil on the grids unless they are new, the acid formed a coating that can't be removed and will cause high pressure in the filter. New grid time if that is the case.

 

[n0rthern]

Hello from Europe.

I had something similar happen to me when I changed to a VSP. The names of electrical devices in the US differ from European ones. I changed the existing 10A Type B (3-5 x rated current) MCB (breaker) to a 10A Type C (5-10 x rated current) MCB, which are less sensitive to tripping than the standard Type B MCBs.

I was also getting nuisance tripping from the RCD(GFCI) and had to change to a Type B RCD which are immune to the stray DC current generated by the electronics of the VSP.

All Siemens devices.