Hi everyone,
Looking for some advice...
A few years ago we had our B&G circ pump (1/12 hp) replaced with a Grundfos UPS26-99FC 3 stage (1/6 hp). For the first 4 months it was quiet, after calling the HVAC company back they said it was air and bled the system...it didn't change anything. the following couple years it has been getting worse, and this year you can pretty much hear the circ pump throughout the home.
Also (and maybe related) since the circ replacement I constantly have to bleed a specific rad ever few weeks.
House is ~2800sqft 2 storey, 3 honeywell zone valves (i think 1 is stuck open actually), pressure is ~17-19psi.
back to the pump...if i close the supply value, the circ pump is silent again, but as soon as water flows to it, it gets noisey, reminds me of warn or un-greased bearings...
I've also opened the purge valve screw on the pump with no changes.
I'm not scared to try stuff myself, as the last time i got the pros in (2 different companies) i've had issues...
If it will help and can record a video and post it on youtube or something.
ok did a vid - sounds like cavitation?... is it shot?
Also, here is the circ pump i'm thinking of replacing it with...thoughts?
http://www.tacocomfort.com/products/variable_speed_products/007e/index.html
Any thoughts or insight would be appreciated.
Cheers!
Looking for some advice...
A few years ago we had our B&G circ pump (1/12 hp) replaced with a Grundfos UPS26-99FC 3 stage (1/6 hp). For the first 4 months it was quiet, after calling the HVAC company back they said it was air and bled the system...it didn't change anything. the following couple years it has been getting worse, and this year you can pretty much hear the circ pump throughout the home.
Also (and maybe related) since the circ replacement I constantly have to bleed a specific rad ever few weeks.
House is ~2800sqft 2 storey, 3 honeywell zone valves (i think 1 is stuck open actually), pressure is ~17-19psi.
back to the pump...if i close the supply value, the circ pump is silent again, but as soon as water flows to it, it gets noisey, reminds me of warn or un-greased bearings...
I've also opened the purge valve screw on the pump with no changes.
I'm not scared to try stuff myself, as the last time i got the pros in (2 different companies) i've had issues...
If it will help and can record a video and post it on youtube or something.
ok did a vid - sounds like cavitation?... is it shot?
Also, here is the circ pump i'm thinking of replacing it with...thoughts?
http://www.tacocomfort.com/products/variable_speed_products/007e/index.html
Any thoughts or insight would be appreciated.
Cheers!
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