Replacing a Myson MPRT Wired Thermostat With a Tado V3 Wireless System
I am looking to replace my wired Myson MPRT Thermostat (photo below) with a Tado Wireless Smart Thermostat V3. My current thermostat has just 2 wires (photo below) Can I replace my old wired thermostat with the Tado Wireless Receiver without requiring an additional power supply? Thanks! 😀
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Best Answer
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Short answer is no.
You need 230V to power the wireless receiver, even if your switch wire is 230V you will need a neutral conductor.
You could use the wired thermostat
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Answers
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Not likely in that setting. Need some clarity.
- Are you using a wireless receiver (aka Tado extension kit) in the property, connected to the boiler?
- Or is there another wired Tado stat controlling the boiler and the CH call for heat?
- What boiler is it, specifically?
- If used in purely wired mode this link: MPRTinstallOct13.indd refers to a connection being made between Pins 2 and 3. It does not explicitly demand that PIN 2 is given the role as Common, and Pin 3 as switched live. This means that you need to check the two wires with an electrical screwdriver (or better still, a multimeter) to check the voltage on each wire before changing anything.
Asking about the specific brand/model because there can be efficiency benefits which are not accessed when a boiler is commissioned in dumb mode. Some boilers have digital modes which enable improved efficiency.
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