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 already in place.
The coloured lines are the ones that I will connect.
For both scenarios:
-Existing wire RoomStat1 L1 to Heatlink1 T1
-Existing wire RoomStat1 N to Heatlink1 T2
-Connect new wire from Heatlink1 N to RoomStat1 N
-Connect new wire from Heatlink1 L to RoomStat1 L1
-Repeat same with RoomStat2 and Heatlink2
-Bridge port L, #2 and #5 together on Heatlink1
-Bridge L and #2 on Heatlink2
Scenario 1 (Connect all to programmer)
Remove existing wire from CH1 ON and connect new wire CH1 ON to Heatlink1 #3
Remove existing wire from HW ON and connect new wire HW ON to Heatlink1 #6
Remove existing wire from CH2 ON and connect new wire CH2 ON to Heatlink2 #3
Scenario 2 (Connect to Room Stats)
Connect existing wire from ROOM STAT1 N/O to Heatlink1 #3
Connect existing wire from ROOM STAT2 N/O to Heatlink2 #3
(What do I connect Heatlink1 #5 to to get the hot water?)
Which is the best way to install this?
Appreciate the help!
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 already in place.
The coloured lines are the ones that I will connect.
For both scenarios:
-Existing wire RoomStat1 L1 to Heatlink1 T1
-Existing wire RoomStat1 N to Heatlink1 T2
-Connect new wire from Heatlink1 N to RoomStat1 N
-Connect new wire from Heatlink1 L to RoomStat1 L1
-Repeat same with RoomStat2 and Heatlink2
-Bridge port L, #2 and #5 together on Heatlink1
-Bridge L and #2 on Heatlink2
Scenario 1 (Connect all to programmer)
Remove existing wire from CH1 ON and connect new wire CH1 ON to Heatlink1 #3
Remove existing wire from HW ON and connect new wire HW ON to Heatlink1 #6
Remove existing wire from CH2 ON and connect new wire CH2 ON to Heatlink2 #3
Scenario 2 (Connect to Room Stats)
Connect existing wire from ROOM STAT1 N/O to Heatlink1 #3
Connect existing wire from ROOM STAT2 N/O to Heatlink2 #3
(What do I connect Heatlink1 #5 to to get the hot water?)
Which is the best way to install this?
Appreciate the help!
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