Search the forum,

Discuss Wiring digistat 3+ thermostat in the Electrical Wiring, Theories and Regulations area at ElectriciansForums.net

T

tomblandford

I have an old thermostat with the following wiring, according to the diagram in the box:
grey = neutral
brown = live
black = call
yellow/green = earth = not connected

The digistat 3+ that I am installing has three terminals: C, ON, OFF.
OFF = not used
ON = ?
C = ?

I will isolate and make safe the neutral and earth wires. Which wire connects to ON and which to C? I am assuming C = live, brown and ON = black, call. Can someone please reassure me before I go ahead :eek:

Will the new thermostat in the hall turn on/off both the boiler and the pump if I leave the control unit next to the boiler to ON all the time and then use the new thermostat in the hall to do the timing? At the moment I just have a temperature sensor in the hall and then the timing is done at the control unit next to the boiler.

Thanks.
 
Last edited by a moderator:

Reply to Wiring digistat 3+ thermostat in the Electrical Wiring, Theories and Regulations area at ElectriciansForums.net

Similar Threads

I have a Firebird oil boiler that is controlled by a Honeywell timer (no thermostat) that has channels for hot water and central heating...
Replies
8
Views
486
At the moment it depends on the weather on how well the central heating works, the main problem is the Nest Gen 3 thermostat only measures the...
Replies
7
Views
741
Hi all looking for some helpful advice I'm an Aussie so go easy on me, I have a good mechanical engineering head but first time plumbing and...
Replies
32
Views
2K
Evening all, Have been asked to wire one of these into a heating system that has no separate control (or valves) for HW & CH. Customer is going...
Replies
5
Views
1K
Hello, I'm trying to upgrade my mechanical thermostat to a wireless one but when I connect the wires it doesn't work. This is the old one: And...
Replies
8
Views
1K

OFFICIAL SPONSORS

Electrical Goods - Electrical Tools - Brand Names Electrician Courses Green Electrical Goods PCB Way Electrical Goods - Electrical Tools - Brand Names Pushfit Wire Connectors Electric Underfloor Heating Electrician Courses
These Official Forum Sponsors May Provide Discounts to Regular Forum Members - If you would like to sponsor us then CLICK HERE and post a thread with who you are, and we'll send you some stats etc

YOUR Unread Posts

This website was designed, optimised and is hosted by untold.media Operating under the name Untold Media since 2001.
Back
Top
AdBlock Detected

We get it, advertisements are annoying!

Sure, ad-blocking software does a great job at blocking ads, but it also blocks useful features of our website. For the best site experience please disable your AdBlocker.

I've Disabled AdBlock