I've just moved to a new apartment in which I'd like to replace the current central A/C thermostat with a new one with WIFI control. I hope it's possible! I have basic diy electric skills but no knowledge in Air conditioners.
The current thermostat has only two switches (beside the temperature knob) :
- Cool / Off / Heat
- Low / Med / High fan speed
The wiring of my current thermostat is as follows :
If I understand it correctly, the
LOW, MED, HIGH are for fan control,
L1-~, L2-0 are for line and neutral
R.V, COMP are for 24V from the unit and for the compressor.
There's another loose wire connected to nothing.
In the product I wish to buy, there's a different wiring diagram, in which the I don't understand which wire goes where.
7 Live Wire
6 Valve OFF - for three-wire electric valve and fan coil
5 Valve ON - for two-wire electric valve and fan coil
Matching Between the Thermostats
I've figured out the Low Med High should be the same, however I'm not sure about the L and N wires and I definitely have no clue what is the Valve ON/OFF terminals are. So far this is my match between the two diagrams
L1-~ -> Live Wire
L2-0 -> Neutral
COMP -> ?????
R.V -> ?????
LOW -> Low
MED -> Med
HIGH -> High
Finally, the questions :
- Are these thermostats compatible?
- How to wire the new one to my A/C?
- What are the Valve wires?
If there's a solution, a diagram would be much appreciated! If I'm just a noob with no clue and this is not possible, please be gentle :)