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Discussion Starter #1
Hi Everyone,

I'm trying to get my infloor heat working. I am having trouble getting the circ. pump to come on when the t-stat calls for heat. This is what I have:

Fan Center- R, G and C Terminal
Heat Link Stat- C,C,R,W, and Ntc


R&G from the fan center relay are going to R&C on stat.
2 wire from slab sensor are going to the NTC terminals on stat.

Do I need a jumper between R&W on stat to get circ pump to run when system calls for heat? or?
 

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The stat is suppose to close R to W on a heat call. Put a meter on R and W at the relay terminal block and see if you read 24 volts or 0 volts when the stat is calling for heat. Should be 0 when calling for heat.
 

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Then the W from the stat should go to the G of the relay to run the circ.
 

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Discussion Starter #5
Alright so
R and G from fan center connect to R and W from stat. Leaving the c terminals on both blank.
 

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If your stat uses a common, then connect the C terminals together. Most likely it needs or can use the C terminal.
 

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No. But you may need to make sure you change the batteries yearly.
 

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Discussion Starter #9
No as in common is not necessary or no as in I still need a common? haha. There is only a 2 wire so if I need a common I will have to run another wire.

Thanks for the help.
 

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No you shouldn't need a common if it is battery operated.
 
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