Use and Care Manual

36 Rinnai Corporation EX17CT, EX22CT Manual
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
W. TH
WALL THERMOSTAT