I need a y plan wiring diagram

Question edited to add 'make model (what it is)', which is needed for all questions of this type.
Question moved from Cars and Trucks category to Honeywell Thermostat.

http://aw.absolutaire.com/docs/component_docs/indexed/161.pdf

It shows is as a very obscure Australian model (we are in North America). Listed as

T822 Series Mechanical Thermostats

Here is the manual

https://www.houseneeds.com/upload/pdf/honeywell-t822install.pdf

It describes it on Page 3 as;

The T822 Thermostat controls 2-wire, 15 Vac to 30 Vac, gas, oil or electric heating-only systems.

Installation and wiring are here

https://www.engineeredair.com/parts/9dt2xkJ39.pdf

A tortuous and long winded route that took 20 minutes to get there :>D
..

Disregard wire colors. Instead wire by terminal designation. In other words :
Wire on "R" Terminal on old thermostat to "R" Terminal on new thermostat no matter the color.

there is lots of wiring diagrams
wich one u need
sorry

with y plan 3 connections on programmer HW on HW off CH on HW on to cylinder stat then HW call to Orange on Mvalve to power boiler and pump HW off to grey wire on Mvalve to close hot water CH to room stat common then heating call to white on Mvalve

call me alan 0776 7494009 have books on c, s,y plans

What kind of boiler are using is this boiler a on the demand electric or gas? You need low voltage wires. If you get me make and model # of off boiler i can try and find wiring diagram . Tell me a little more about you heat system to. Like baseboard heat or in floor how many zones

If you can tell me the compressor model # maybe i can get you a diagram or a little info on what you need as far as a diagram.

Wiring diagram is normally included and fixed to the inside cover of the electrical end cover of the control compartment. Instructions for wire size required and fused disconnect should be on the unit name plate.

do a s plan plus and buy a poly plumb roomstat combined programer with built in relays as you require the relays to stop back feed! simple!

http://www51.honeywell.com/aero/Products-Services/Avionics-Electronics/Egpws-Home3/InstallationInformation3/digs-draw-sw.html?c=21

try this.. all honewell drawings.. in it