Weil-McLain WTGO 4 Series Manual page 25

WTGO
OIL-FIRED NATURAL DRAFT WATER BOILER — SERIES 4 —
Connect wiring
Figure 19
Boiler wiring for forced hot water
Limit control
Burner
wiring
harness
Burner
disconnect
plug
Part number 550-142-332/0421
SERVICE TECHNICIAN ONLY — read and follow completely.
(continued)
Boiler Manual
Service
switch on
control
25