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Field wiring – Weil-McLain Ultra Electric Water Heater User Manual

Page 10

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Part number IWHA016A/1103

10

PLUS Line Instruction Manual Supplement

PLUS &

PLUS

WATER

HEATERS

WITH

GAS

-

FIRED

WATER

BOILERS

Field wiring

(continued)

3

Figure 9

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.