Search results

  1. J

    Nest - No power to existing thermostat

    You sound like you have the same issue I had, you can refer to my thread that I've just updated too.
  2. J

    Nest Thermostat to ESI 2 zone with HW cylinder

    UPDATE: Over the weekend I've managed to install the Nest thermostat. Initially I went with scenario #2 and removed CH1 ON, CH2 ON and HW ON from the programmer completely from both ends (wiring centre and programmer downstairs). Then with a new wire, I wired only HW ON to the Heatlink1 #6 and...
  3. J

    Nest Thermostat to ESI 2 zone with HW cylinder

    Thanks, you're suggesting to use scenario 2? In this case, if I remove the room thermostats that has wires L, N and N/O to replace with the nest thermostats that only uses wires L and N, what do I do with the extra wire N/O (Room Stat 1) at the wiring centre? Do I need to bridge the two...
  4. J

    Nest Thermostat to ESI 2 zone with HW cylinder

    Thanks for that Chris. Yes I do know that part. If you look at the schematics, my question is just where I should get the Heat Call and HW Call. I've looked at all the threads regarding nest and ESI installations on this forum already and in regards to that thread, they only have one wire...
  5. J

    Nest Thermostat to ESI 2 zone with HW cylinder

    Hello, I'm about to install two Nest thermostat generation 3 into a 2-zone thermostat with hot water cylinder and programmer. Here is the existing ESI wiring centre. I've drawn out two possible scenarios and I wanted to see if they could work. The black arrows are the existing wiring...
Back
Top