Does TT solo 110 have C wiring?
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Does TT solo 110 have C wiring?
My current wired thermostat terminal R and W are connected to solo 110' s 24 volt circuit terminal 7 and 8. The thermostat requires battery so I believe it doesn't get power from Solo 110. Those terminal 7/8 are the only terminals on Solo 110 available for thermostat wiring according to the manual.
I'm trying to install a new wireless thermostat unit that gets power from boiler. Besides R and W, it requires C terminal connection from boiler for power. So does this mean that Solo 110 doesn't want to power 24volt thermostat? Do I need to get a separate transformer?
Thanks in advance.
I'm trying to install a new wireless thermostat unit that gets power from boiler. Besides R and W, it requires C terminal connection from boiler for power. So does this mean that Solo 110 doesn't want to power 24volt thermostat? Do I need to get a separate transformer?
Thanks in advance.
#2
http://thermalproductsinc.com/wp-con...110-Manual.pdf
If you cannot measure 24VAC between 7 or 8 to ground you will need a transformer and isolation relay.
If you cannot measure 24VAC between 7 or 8 to ground you will need a transformer and isolation relay.
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you will need a transformer and isolation relay
#4
which thermostat are you using? Depending on the model of thermostat you may not need a relay. You will need 4 wires to the thermostat without using a relay. You would need 3 wires to the thermostat when using a relay.
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Great. Thanks for the drawings. That helps alot. I confirmed with TT tech support that solo 110's 24volt circuit is not designed to power anything.
HW fan control above looks like just the one that I need. Just to double check, I can wire the transformer into 120v outlet to power it right?
HW fan control above looks like just the one that I need. Just to double check, I can wire the transformer into 120v outlet to power it right?