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- 4 Dec 2017
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Hello,
I mistakenly purchased a dual channel Hive self install from Amazon - but didn't realise why it was so cheap.
Anyway I thought - this should work - I can just ignore the hot water functionality.
My boiler is a Heatline S24 Compact Combi, which did have an external controller fitted already ( I have removed the internal jumper of the boiler's thermostat to allow this to work ).
The Boiler has a mains voltage thermostat loop which you attach a mains thermostat to. It consists of 2 wires, one ( A ) at mains voltage and the other ( B ) no voltage. However if you cross the wires the heating comes on.
I thought ok, if I use the Hive output ( heating on ) wire 4 and connect this to B on the boiler this would cause B to become Live at mains voltage, and therefore the heating would turn on.
This does not happen, and in fact it blows the 2A fuse on the controller board in the boiler.
Apart from fitting a relay which closes the thermometer loop from the boiler, I am not sure what to do. I was certain that my approach would work.
I have tested the voltage of the boiler loop wires and the Hive to check they are outputting mains at the right time.
If you have any ideas - I would be very thankful, and I am sure this would help others as I have seen only 1 similar post about this.
Thanks
Steve
I mistakenly purchased a dual channel Hive self install from Amazon - but didn't realise why it was so cheap.
Anyway I thought - this should work - I can just ignore the hot water functionality.
My boiler is a Heatline S24 Compact Combi, which did have an external controller fitted already ( I have removed the internal jumper of the boiler's thermostat to allow this to work ).
The Boiler has a mains voltage thermostat loop which you attach a mains thermostat to. It consists of 2 wires, one ( A ) at mains voltage and the other ( B ) no voltage. However if you cross the wires the heating comes on.
I thought ok, if I use the Hive output ( heating on ) wire 4 and connect this to B on the boiler this would cause B to become Live at mains voltage, and therefore the heating would turn on.
This does not happen, and in fact it blows the 2A fuse on the controller board in the boiler.
Apart from fitting a relay which closes the thermometer loop from the boiler, I am not sure what to do. I was certain that my approach would work.
I have tested the voltage of the boiler loop wires and the Hive to check they are outputting mains at the right time.
If you have any ideas - I would be very thankful, and I am sure this would help others as I have seen only 1 similar post about this.
Thanks
Steve