Pressure Switches - All Models - State Water Heaters SBL85275NEA Service Handbook

PRESSURE SWITCHES – ALL MODELS
All SBL models are provided with two pressure switches. These switches are essential to the safe and proper
operation of the unit. The switches are wired to the Ignition control in series. It is important to understand the
purpose of each switch.
Blower Prover Switch
PRESSURE SWITCHES
PRESSURE SWITCHES
Blower Prover Switch
Blocked Outlet Switch
22
Blocked Outlet Switch
Model
SBL85275NE(A) - SBL85390NE(A)
SBL85275NE(A)
SBL85310NE(A)
SBL85366NE(A)
SBL85390NE(A)
Servicing should only be performed by a Qualified Service Technician
Setpoint (WC) Tolerance (WC)
+0.32"
+2.50"
+3.50"
+4.80"
+5.10"
+/-0.04"
+/-0.10"
+/-0.10"
+/-0.10"
+/-0.10"