Whoops. I have just flushed out the water heater for the radiant system. However, the water flow wasn't what I expected, so now I'm not certain how to make sure the water heater has no air pockets. Also, I'm not sure whether I need to purge air from the system itself. And for that matter, how to do either. The components are:
- Fed by domestic with backflow prevention valve
- Single zone, 6 PEX manifold
- Just one drain value (not counting water heater drain) at the manifolds
- Pressure tank and pump
- Water heater
- A Motorola valve I can set to "open"
Any help appreciated. I've been reading some materials here and other sites but can't quite figure it out. Many thanks!
UPDATE--The system has an auto purge, so when I filled the water heater and turned on the circulation pump, there was much hissing and gurgling, gradually getting very quiet. I can't see or hear any air in the system. Am I safe? Is there still a chance of air pockets in the water heater (nonononono) or radiant PEX?
- Fed by domestic with backflow prevention valve
- Single zone, 6 PEX manifold
- Just one drain value (not counting water heater drain) at the manifolds
- Pressure tank and pump
- Water heater
- A Motorola valve I can set to "open"
Any help appreciated. I've been reading some materials here and other sites but can't quite figure it out. Many thanks!
UPDATE--The system has an auto purge, so when I filled the water heater and turned on the circulation pump, there was much hissing and gurgling, gradually getting very quiet. I can't see or hear any air in the system. Am I safe? Is there still a chance of air pockets in the water heater (nonononono) or radiant PEX?
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