Another Hive installation!

[andyrow]

Just wondering if anyone can help with this one..

So my existing system (pre Hive) is a hot water cylinder with Air Source Heat Pump (Mitsubishi Ecodan). I have a Mitsubishi FTC2 controller / Danfoss cp715 Programmer / Danfoss RX1 and TP5001 for the room thermostat.

I have replaced the programmer with the Hive - same wiring layout.

The issue I now have is that the RX1 is connected directly to the FTC2 Board and throws up an error if not connected. My Hive is effectively only working as a programmer at the moment as it is using the old RX1/TP5001 for temperature control.

The RX1 is wired as below

Should this be wired to the Hive? In the same layout?

The bridge from Live to 2 confuses me a little!? Not sure the reason for that

Thanks

 

[andyrow]

So after doing some more research, it looks like I might have to have a bit of a workaround for my setup?

I may have to leave the RX1/TP5001 installed - set the temp to max and timings for 'on all day' and then just let the Hive control the on/off.

like this thread - https://www.diynot.com/diy/threads/...iring-headache-doesnt-turn-heating-on.473134/

Unless I am looking at my setup wrongly!?

 

[andyrow]

Still struggling with this - the above 'fix' didn't work

With the thermostat set to be on all the time at max heat, the boiler would never fully turn off - wasn't heating anything but sounded like a pump still doing something.

I'm now thinking a single channel Hive would have been much easier and left the programmer to deal with the HW

Before I buy a new single channel receiver - is all hope lost!? Can I use the dual channel just with CH?

 

[Michal Perecz]

Hi,, I know this post is fairly old..
But I'm on same set up...
Mitsubishi ecodan
Danfoss rx1
Danfoss 715 HW + CH
Danfoss tp5000

I bought hive yesterday and got it working 100 percent...

You must remove danfoss 715 and replace with hive unit..

Rx1 stays in place..but cables must be corrected
Tp5000 remove + remove battery too..as it send WiFi signal

 

[Michal Perecz]

First FOTO.. showing water is on.. -that is where old 715 danfoss was

• 2nd FOTO showing that water is heated ( by tank)
• 3rd photo wireless thermostat -replacing tp5000

 

[Michal Perecz]

Cable in rx1 as following

• N
• L
• 1-empty
• 2- as it js
• 3empty
• 4 cable from no3 goes to no 4

 

[Michal Perecz]

Hot water will work for you all the time..as it bypass rx1..
Rx1 is for heating only..so only that needs to be sorted for working heating..best of luck

Get in touch if you struggle