No heat hydronic system

Jerzee1985 Posts: 1, Reputation: 1

New Member

Jan 14, 2012, 07:24 PM

No heat hydronic system

I working on a hydronic system Air handler with a DX coil & hydronic coil I have no heat. The boilers are lit and hot in the boiler room. The chillers are off. The pumps are not running. The blower are not running. I have no voltage at the T-stat, but I have 24 volts at the pup relay. When I jump out he pump relay the pumps starts. I can not figure out what's wrong

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