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please help wiring R89 relays to new boiler
John B_2
Member Posts: 46
System has three RA89A relays and the guy wired all three relays with a common red and white lead and then wired that to the T and TV on the boiler.
Now the boiler circ pump constantly runs and so do the zone pumps which are connected to the relays.
the boiler aquastat control is a L8148e
Now the boiler circ pump constantly runs and so do the zone pumps which are connected to the relays.
the boiler aquastat control is a L8148e
0
Comments
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The answer is basic
not wired properly. Go to the wiring diagrams and start fresh.Cost is what you spend , value is what you get.
cell # 413-841-6726
https://heatinghelp.com/find-a-contractor/detail/charles-garrity-plumbing-and-heating0 -
The RA89 relays
are a circulator only relay they do not have an isolated set of switches to be wired to T and TV. You might want to get a Taco 503 which would work great for your situation. It will run the circulators and wire to your aquastat relay for burner and boiler circulator operation.0 -
Tim, thanks but I,ve just bought the Tekmar 401
House control. Thanks for your post.0
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