32 Rinnai Corporation EX08C, EX11C Manual
Ladder Diagram
CODE COLOR
bk black
bl blue
gr green
gr/y green/yellow
r red
w white
y yellow
gy gray
or orange
pk pink
br brown
lb light blue
MARK PARTS NAME MARK PARTS 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
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