Download Weil-McLain 80 Specifications
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PLUS LINE Indirect-Fired Water Heaters – Series 3 B3 gas Field wiring — Figure 19 Gas boilers only (continued) Low voltage field wiring connections Summer/winter switch (item 7) — Install a summer/winter switch, if desired, to disable the boiler (space heating) circulator during non-heating months. Connect switch across the outdoor sensor terminals. When switch closes, the boiler circulator is disabled and the boiler operates only on call for DHW heating. 32 Part Number PLUS-E017-A/1206