home Fix label Heating label_important Home Heating Systems category GWA

boiler bangs when zones shut down?

i have a new gwa hot water boiler model 175ns with 4 honeywell zone valves v8043e1012 controled with a argo az4cp when any zone shuts off i get a bang in the area of the valves it happens even right after i bleed each zone

macko, February 2011

home Fix label Heating label_important Home Heating Systems category GWAdone

It sounds like the new pump is too powerful, forcing the valves shut/open.
Look to fit a small system by-pass on the primary flow/return pipework.

Carefree, February 2011

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Fix Fault - Heating

home label Heating label_important Home Heating Systems

Fix Fault - Heating

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home Fix label Heating label_important Home Heating Systems category GWA

boiler bangs when zones shut down?

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boiler bangs when zones shut down?

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