Raypak Pool Heater

[jeffab]

I had a PM266a heater installed in May that has emitted a whistling noise ever since. Numerous phone calls top Raypak, my installer, and a local service company have not yielded any results except that the local service company made it clear that this is an issue with their heaters. It is annoying and I wish I knew this before I bought it

[PoolGuyNJ]

How big is the gas line from the meter? How much 3/4" pipe is used at the heater? How big is the meter? I am assuming you are using natural gas.

Scott

[Pool Clown]

is this happening all the time(pump running)? Or just when the heater is actually firing?

[jeffab]

I am using 3/4" from the underground connedction. The pipe is buried to the meter so I can't tell you how big that is but I can tell you this is a replacement heater and my previous heater (not Raypak) did not whistle. The meter is a standard household meter (not an expert here). The whistling starts when the heater fires and doesn't stop until the heater shuts off (reaches temp).

[jeffab]

The run from the underground pipe to the heater is about 4 feet.

[Pool Clown]

Usually the pipe size will be the same size as the section comming out of the ground.

Do you know the size (BTU) of the old heater?

[PoolGuyNJ]

Also, the meter will say either how many cubic feet or the number of BTUs is is set to deliver. As PC mentioned, 3/4" is normally just coming out of the heater. We are trying to determine if the amount of gas is sufficient from the meter. The whistling is frequently due to low supply pressure.

Scott