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wiring H.W. L8148E w/ Taco zone valves
I need to wire two taco zone valves with a Honeywell L8148E. The only diag. I can get is w/ H.W. zone valves. I have terminals marked t,tv,w,z the w,z have a jumper needed for 24v sys. I could use an external transformer , but this has become a challenge I really want to know how to wire it this way. But I don't want to toast the control, $$$.