Installation Guide

Rinnai Corporation EX17C / EX22C Manual 33
Ladder Diagram
MARK PART NAME MARK PART NAME MS MAIN SWITCH OH.TH OVER HEAT THERMISTOR R.TH THERMISTOR OHS1, 2 OVER HEAT SWITCH 1, 2 TF THERMAL FUSE FM CONVECTION FAN MOTOR F FUSE SP SPARKER ER ELECTRODE SV1, 2 MAIN SOLENOID VALVE 1, 2 POV MODULATING SOLENOID
VALVE
BL COMBUSTION FAN MOTOR
TR TRANSFORMER FCC FAN CONTROL CIRCUIT FR FLAME ROD MB MAIN BURNER PS PRESSURE SENSOR CPU CENTRAL PROCESSING
UNIT
CF CONVECTION FAN