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11-17-2012, 10:22 AM
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#1 |
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Newbie
Join Date: Nov 2012
Posts: 7
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In Floor Heat
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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11-18-2012, 06:18 AM
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#2 |
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An old Tradesmen
Join Date: Oct 2008
Location: PA
Posts: 19,065
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In Floor Heat
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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11-18-2012, 12:58 PM
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#3 |
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Newbie
Join Date: Nov 2012
Posts: 7
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In Floor Heat
The fan center relay only has R, G, and C terminals.
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11-18-2012, 01:02 PM
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#4 |
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An old Tradesmen
Join Date: Oct 2008
Location: PA
Posts: 19,065
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In Floor Heat
Then the W from the stat should go to the G of the relay to run the circ.
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11-18-2012, 01:05 PM
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#5 |
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Newbie
Join Date: Nov 2012
Posts: 7
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In Floor Heat
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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11-18-2012, 02:49 PM
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#6 |
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An old Tradesmen
Join Date: Oct 2008
Location: PA
Posts: 19,065
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In Floor Heat
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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11-18-2012, 04:41 PM
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#7 |
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Newbie
Join Date: Nov 2012
Posts: 7
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In Floor Heat
If I just run the stat with batteries then a common wouldn't be necessary?
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11-18-2012, 05:01 PM
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#8 |
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An old Tradesmen
Join Date: Oct 2008
Location: PA
Posts: 19,065
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In Floor Heat
No. But you may need to make sure you change the batteries yearly.
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11-18-2012, 05:09 PM
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#9 |
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Newbie
Join Date: Nov 2012
Posts: 7
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In Floor Heat
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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11-18-2012, 06:13 PM
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#10 |
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An old Tradesmen
Join Date: Oct 2008
Location: PA
Posts: 19,065
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In Floor Heat
No you shouldn't need a common if it is battery operated.
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