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FIGURE 17: INDIRECT WATER HEATER FIELD WIRING
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Feeder Wiring for Boilers Equipped with Hydrolevel CG450 Low Water Cut-offs
1) Using Hydrolevel VXT-120 feeder - Do not alter factory boiler wiring. Connect VXT-120 to CG450 as follows:
• Connect the BLACK lead on the feeder to terminal A on the CG450.
• Connect the WHITE lead on the feeder to terminal 2 on the CG450.
2) Using McDonnell & Miller WF2-U-120 feeder - Do not alter factory boiler wiring. Connect WF2-U-120 to CG450A as
follows:
• Connect terminal 1 on the feeder to terminal A on the CG450.
• Connect terminal 2 on the feeder to terminal 2 on the CG450.
• Connect terminal 3 on the feeder to terminal 1 on the CG450.
Feeder Wiring for Boilers Equipped with McDonnell & Miller Low Water Cut-offs
Figures 18a and 18b show feeder wiring for McDonnell & Miller #101A, McDonnell & Miller WF2-U-120 and Hydrolevel VXT-
120 feeders on boilers equipped with #67 low water cut-offs.