Hive Active Heating

discosi · 20 Jan 2019

Just bought hive active heating and hot water pack.
Currently have what I believe is gravity system ‘Y’ type. Boiler, hot water tank, 3 way valve, room stat, tank stat and programmer.
Instructions state ‘dual channel required for boilers with hot water tank’. Dual channel wiring diagram in instructions show all terminals used. Current wiring only used 4 of the 6 terminals. Is this due to gravity system? If so can hive be wired in the same way? Currently have wired room stat. Do the wired from this just get isolated/looped?

Thanks

flameport · 20 Jan 2019

This has been covered a thousand times already in other discussions.

1 - that wiring suggests S plan. If it really is Y plan then it's been installed wrongly and won't work properly now or after the Hive is installed.
2 - very unlikely you have gravity hot water, that usually involves an ancient floor standing boiler with two very large pipes directly to the hot water cylinder, and two other slightly smaller pipes for the radiators
3 - the wiring for the Hive is identical to what is already there
4 - the diagram shows the terminals that could be used. Very few systems actually use all of them
4 - the two thermostat wires must be connected together permanently, otherwise the heating will never work

discosi · 20 Jan 2019

1) The 3 port mid position valve after the pump feeding the HW and rads was making me think it was Y type.
2) I may have used incorrect terminology here. HW tank fed from header tank in loft and hot water to taps low pressure suggesting gravity. Water in coil through tank is pumped.

discosi · 20 Jan 2019

1) just had a look at it again to see what type of value. might it originally have been wired as a W plan. The 3 port valve may have been changed to mid position type but not wired correctly?

nay376 · 9 Mar 2019

Hi,

Can anyone help me with the wiring of my programmer to hive? There’s 6 pins and Hive only has 4! Also i have two thermostats.

Thanks
Nay

ollski · 9 Mar 2019

Looks like you have 2 zones, upstairs and downstairs. You would either need an extra single channel hive and receiver to run one of your zones or you could put 6 and 4 on the existing into 4 on the hive. I suppose then you could keep one zone run by the existing manual room stat then if you wanted.

OLLIE20 · 9 Mar 2019

flameport said:
This has been covered a thousand times already in other discussions.

1 - that wiring suggests S plan. If it really is Y plan then it's been installed wrongly and won't work properly now or after the Hive is installed.
2 - very unlikely you have gravity hot water, that usually involves an ancient floor standing boiler with two very large pipes directly to the hot water cylinder, and two other slightly smaller pipes for the radiators
3 - the wiring for the Hive is identical to what is already there
4 - the diagram shows the terminals that could be used. Very few systems actually use all of them
4 - the two thermostat wires must be connected together permanently, otherwise the heating will never work

Nope Y plans can be installed and work just fine with no HW off wire from the programmer. The programmer would need setting to gravity mode to work like this and wouldn’t be the number once choice to do it this way. However it isn’t wrong it’s actually pretty standard

nay376 · 9 Mar 2019

Thanks Ollski, i did this setup originally but dont think the boiler or heater turned on when pressing the silver buttons in the hub... maybe i didn’t wait long enough for it to turn on (30-60 seconds)

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Hive Active Heating

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