2-port valve

  1. F

    Nest, 2 port zone valve and hot water tank

    Installation of Nest seems to have led to the destruction of my heating system. - Plumbers did some interesting wiring, connecting the power wires of the Nest thermostat to anything but T1 and T2 in the Heatlink, resulting in Nest H72 error. - Got plumbers back and they wired the thermostat into...
  2. B

    Are my 2-Port Valve wired incorrectly? Kettling problem.

    Greetings all. I'm after a bit of advice as we have an issue with our HW kettling and on closer inspection the wiring on our 2-port Valves looks a little suspect to my untrained eye. Background: The house was built in 2001 and has an 'S' CH/HW System installed. If the HW is on and the CH is...
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