Hello, friendly people out there:
4 zone water heating system. basement, main floor work OK. two zones on the 2rd floor, stop heating. zone valves installed on the supply pipes instead of return pipes. When turn on the thermostat, or manully push start the zone valve, circulator and boiler kick in, but no hot water go up the pipes. only small amount hot water go pass the zone valves.
is it a zone valve(honeywell) problem? Easy fix?
Thank you,thank you!!
4 zone water heating system. basement, main floor work OK. two zones on the 2rd floor, stop heating. zone valves installed on the supply pipes instead of return pipes. When turn on the thermostat, or manully push start the zone valve, circulator and boiler kick in, but no hot water go up the pipes. only small amount hot water go pass the zone valves.
is it a zone valve(honeywell) problem? Easy fix?
Thank you,thank you!!