At a May 15, 2008 California Energy Commission (CEC) workshop, representatives of Pacific Gas and Electric Company (PG&E) proposed some revisions the the wording of Title 20 as it applies to residential pool filtration pumps. The intent of these revisions is to clarify, given the benefit of multiple interpretations, the original motive behind the drafting of Title 20.
First, the PG&E team proposes that the wording be changed so that Title 20 explicitly includes replacement motors (as well as entire pumps). In my reading, the current wording already makes this clear, but some have argued that the wording is ambiguous.
Second, the PG&E proposal recognizes that the current two speed timer requirement is, in retrospect, misguided. As the proposed revisions make clear, a two speed timer should only be required when a two speed pump is used. The revisions acknowledge that there are approved cases where a two speed pump, and hence a two speed controler would not be used. For instance, a small single speed pump (of less than 1 hp) would require a timer capable of operating only the one speed pump that it is used with. Additionally, some pools can use multi-speed pumps. These pumps require a compatible multi speed capable controller. The proposed revisions reflect this real world nuance.
I applaud the proposed revisions. I believe that the clarification they would provide would prove useful in getting more contractors and homeowners to follow what I believe is best practice and conform to the intent of the law.
5 comments:
These changes have now been approved and are set to take affect on Jan 1, 2010.
can you please publish the particular changes?.. dpm
My son's pool contractor /builder provided him with all pentair equipment for his brand new pool.
The IntelliFlo VS (P/N 011018)appears to benon-complieng with
Title 20 regulation.
How can we compell the contractor or supplier to replace this with IntelliFlo VF w/c is compliant?
Your exper advise is greatly appreciated.
Danny
An IntelliFlo VS (p/n 011018)
variable speed pump was provided as part of the pool construction supply (incl other pentair products e.i... Sand filter etc)
Now I have strong belief that this pump model is not complying with Title 20 regulation. I wish the pump is replaced with IntelliFlo VF
which is compliant.
What should we do? Your expert advice is appreciated.This also in CA.
Thank you
Danny Mercado
Danny,
There are 2 versions of the IntelliFlo VS pump that share P/N 011018. The early version (also called the 4 x 160) did not have a built in timer. To qualify for Title 20, that early VS pump had to be used with a compatible controller that would turn it on and off and adjust the speeds as required. A later version came out in 2011. This later version has a built in timer that allows the pump to run at different speeds at different times. As such, by itself, only this later version qualifies as Title 20 compatible. If you have an early model VS pump, it needs to be used with a controller.
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