sunvic

Hi Following a faulty actuator on a Sunvic 3 port value SDMV2304, I was advised that a compatible replacement actuator is the Danfoss HSA3 (also backed up by http://www.seered.co.uk/sunvic_low_res_catalogue.pdf - see page 18). However the Danfoss HSA3 only seems moves the spindle through 90...

Hello, I’ve just moved house and found myself with a Ideal Mexico Super ideal C125 boiler, Horstmann 425 control and Sunvic thermostat. I’d like to replace the control for a hive but need some assistance with the wiring please. I’ve attached a couple of pictures. Thanks in advance! David

I currently have underflooring heating, however the individual room thermostats are very old and have the bimetal side dial feature. I am wanting to see if it's possible to upgrade the thermostats to a more mordern, digital one. Although, I'm not sure the model of the exisiting thermostats. All...

We are in the process of moving house and currently have a Netatmo thermostat along with a bunch of radiator valves. Our new home has Oil central heating and hot water. There are two thermostats - One in the hall way and the other next to the boiler(which is in the garage).20201223_132521 by...

Hi there, Second post in 11 years and boiler related... Couple of days ago I noticed the display on 7501 had gone off and heating permanently on, so went and got some more bats and was about to install when I noticed there was some corrosion residue. So I popped it of the wall and saw that...

Hi, I want to change my room thermostat from Sunvic TLX9201 to Salus RT300 but want to check the wiring before I do so. There are currently four wires coming out the wall. Blue + 2x Brown connected to the thermostat and the Green/Yellow connected to the back box. Can someone help me confirm...

I have an installation with Sunvic TLX RFP but one of the receivers (2 zone system) has failed. The Rx has 3 connections, L,N and output which goes to a zone valve (and via that to boiler). I may have bought the wrong replacement. It's receiver has 5 connections as you can see from diagram...

I have an installation with TLX RFP but one of the receivers (2 zone system) has failed. The Rx has 3 connections, L,N and output which goes to a zone valve (and via that to boiler). I may have bought the wrong replacement which is TLX 6001RFPv. It's receiver has 5 connections as you can see...

Hi Read the forum loads in the past but first time posting... I've just had 2 Sunvic motorised zone valves fitted to control my new heating. One controls the under-floor in the living room, the other the rads in the rest of the house. The motors driving the valves to open / close make a...

Hi guys, Its my first time here and its great to see the amount of information you can find just by browsing DIYNOT. I've been reading a lot about the problem that i am facing and i've seen there were very close to similar posts on here but nothing was like mine, at least i could not find it...

I am after some advice - my Central Heating has a Sunvic 207xls 2 ch programmer installed as well as a Programmable Room Thermostat in the hall downstairs. Can anyone offer any advice on the best practice for setting these items up to maintain efficiency on my system. I currently have the...