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Servicing should only be performed by a Qualifi ed Service Agent
OPERATION AND SERVICE
BLOWER PROVER SWITCH - SETTINGS
Vent Connection
Exhaust/Outlet
Blower Prover Switch
Blower (Draft Inducer)
Optional Hot Water Outlet
Figure 15
Table 4
BLOWER PROVER SWITCH TABLE
Model Pressure Setting to Close Switch (Inches W.C.)
(A)BCG385T500-8N/8P -2.85” ± 0.13”
NOTE: The Blower Prover Switch contacts are normally open and will close on a fall in
pressure. This will be a negative pressure (i.e., a vacuum).