N
Neil Potter
I’m looking to self install a Nest Learning Thermostat on my Worcester Bosch 280 boiler, mainly as it’s a rented house, and I need to be able to remove the Nest when I leave, or when the boiler is serviced.
The wiring looks straight forward, but I just wanted to sense check before I go ahead.
The boiler doesn’t have a stat currently, so on the stat section has an unused N connection. 1 & 2 are jumpered (2 shows 240v, 1 is 0v), a 3 is unsued and unmarked, and 4 is unused and marked Frost Stat.
So I assume I can run a 4 core to the Nest Heatlink, and wire up as follows.
N from boiler to N on heatlink
2 (240v Live) from boiler to L on heatlink, and then jumper L on the heatlink to common / 2 on the heatlink (do I need to run a 3A inline fuse or not on the jumper cable?)
1 from boiler to 3 (relay open) on the Heatlink
Earth (needed or not? As Nest stat will be wireless)
Is that pretty much it, bar testing, tidying, and testing again?
The wiring looks straight forward, but I just wanted to sense check before I go ahead.
The boiler doesn’t have a stat currently, so on the stat section has an unused N connection. 1 & 2 are jumpered (2 shows 240v, 1 is 0v), a 3 is unsued and unmarked, and 4 is unused and marked Frost Stat.
So I assume I can run a 4 core to the Nest Heatlink, and wire up as follows.
N from boiler to N on heatlink
2 (240v Live) from boiler to L on heatlink, and then jumper L on the heatlink to common / 2 on the heatlink (do I need to run a 3A inline fuse or not on the jumper cable?)
1 from boiler to 3 (relay open) on the Heatlink
Earth (needed or not? As Nest stat will be wireless)
Is that pretty much it, bar testing, tidying, and testing again?
