We are looking at copper tubing inside the coils bursting--the unit's were plumbed with pressure relief valves, etc. and the copper inside the unit keeps bursting. Theory is the calibration may be wrong on the copper tubing making it too thin? Don't know yet but we have people looking into it.
The cold is supposedly coming from the plenum. And the units are being used in low income apartment units in a residential application. One failure occurred after the unit was started up, ran for 5 day period and then shut down until occupancy. The copper tubing inside the unit's coil section burst.
Wondering if anyone knows of or has heard of First Company hot water coils freezing causing copper fins ruptures or bursts resulting in above ceiling air handler failure, not to mention, flooding. As of new year, units come standard with freezestat (used to be optional).
I went to the State of CA OSHPD website and to the State of CA Architect and drilled down thru FDD, databases CaSIL and other mountains of amendments, policies, intent, adoptions of, etc. etc.
I was finally able to find 90% of what I need. I was curious if there was a direct link to a manual of...
Is there a website(s) that offers the CA State OSHPD Standards for Mechanical (HVAC) work? The project is not an "OSHPD" job however the general notes indicate "following OSHPD standards". Any good links out there?
