Master Plumber Dot Netthe logo
Weil McLain HE II Boiler Image 8

he gold colored rectangle transformer  with the black front and wires connected, was added to this boiler and was not part of the original boiler, it supplies 24 volt power to the zone valves but would not be able to operate the control module.

Other transformer

Previous

Next

Please post all questions or comments on the plumbers talk forum.