Jacob Hellenberg
New Member
Hi everyone,
My tankless hotwater tank broke and the 35 dollar part is not available anymore. So I bought a new Rheem combi boiler because the Mini Thurm boiler is 35 years old. Just had our first baby 3 months ago and and we have no hot water.
I thought the install shouldn't be too bad but right off the get im confused because this has the TT terminals to trigger the heat. I'm used to the standard 24v thermostats. Long story short. Does jumping the TT Terminals together Trigger the demand for heat? If so can I wire the three end switches together and tie to the TT terminals to trigger on the boiler? (I have 3 pop top Erie zone valves) My old system did not have a zone controllers just 3 thermostats that drove the zone valves open and than the end switches activated the demand for the boiler. Can I keep it this simple and use 24v thermostats isolated to only run the zone valave motors and end switches only to trigger TT?
Any insight on this would be more than appreciated!
My tankless hotwater tank broke and the 35 dollar part is not available anymore. So I bought a new Rheem combi boiler because the Mini Thurm boiler is 35 years old. Just had our first baby 3 months ago and and we have no hot water.
I thought the install shouldn't be too bad but right off the get im confused because this has the TT terminals to trigger the heat. I'm used to the standard 24v thermostats. Long story short. Does jumping the TT Terminals together Trigger the demand for heat? If so can I wire the three end switches together and tie to the TT terminals to trigger on the boiler? (I have 3 pop top Erie zone valves) My old system did not have a zone controllers just 3 thermostats that drove the zone valves open and than the end switches activated the demand for the boiler. Can I keep it this simple and use 24v thermostats isolated to only run the zone valave motors and end switches only to trigger TT?
Any insight on this would be more than appreciated!