Correct wiring of a Sunvic TLX4101 room Thermo?

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This thermostat is a "Volt Free" thermostat, is it ok for a standard Y-Type setup?

<answered - see below>
 
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ok, I was a bit quick to post that. I've discovered that it will be fine.

On this thermo the connections are as follows:

1 = Call for Heat
2 = Common
3 = Heating Satisfied

Using the a Y-Type plan I should be connecting:
Thermo 1 (call for heat) to terminal 5 (white on the 3-port 5 wire valve)
Thermo 2 (common) to terminal 4 (Heating of the programmer)

Should Thermo 3 be connected to Neutral or not connected at all?
 
This thermostat is a "Volt Free" thermostat, is it ok for a standard Y-Type setup?
Can't see any problem. The Common will connect to the porgrammer CH ON and the Call to the valve white wire.
 
1 & 2 correct.
3 should NOT be connected,
 
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dont connect 3 to anything, no neutral required, and the other two connections are correct ;)
 

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