Ladder Diagrams - Rinnai RL75E Operation And Installation Manual

Ladder Diagram (for R98LSe and R98LSe-ASME)
38
HOT
FROST SENSING
3A(FUSE)
SWITCH
ARRESTER
VARISTOR
GND
PG
A
WATERFLOW
SENSOR
WATERFLOW
SENSOR
QS
CIRCUI T
A
WATERFLOW SG
CONTROL DEVICE
WATERFLOW
M
CONTROL DEVICE
CIRCUI T
A
BY-PASSFLOW SG
CONTROL DEVICE
BY-PASS FLOW
M
CONTROL DEVICE
CIRCUI T
SG
BY-PASS SERVO MODEL ONLY
RELAY 1
A
SV0
THERMAL FUSE
SV1
OVERHEAT
SWITCH
SV2
SV3
OUTGOING WATER
THERMISTOR
HEAT EXCHANGER
THERMISTOR
THERMISTOR
CIRCUIT
AIR TEMPERATURE
THERMISTOR
INDOOR MODEL ONLY
VB Series Outdoor LS Manual
ANTI-FROST HEATER
VARISTOR
IGNITION
RELAY 1
IG
SWITCHING
POWER SUPPLY
DC12V
DC170V
DC40V
DC12.6V
DC5V
A B C SG
B A
MODULATING
VALVEPOWER
CONTROL
CIRCUI T
SG
CPU
D
CENTRAL
PROCESSING
FAN
UNIT
CONTROL
CIRCUIT
PG
RELAY
DRIVING
CIRCUI T
A
SOLENOID
DRIVING
FLAME
CIRCUI T
DETECTING
CIRCUIT
SG
SG
B
A
REMOTE
CONTROLLER
CIRCUIT
SG SG
SG
NEUTRAL
E
D
B C
MODULATING
SOLENOID
VALVE
POV
E
COMBUSTION
FAN
FAN
FLAME ROD
FR
GND
B
REMOTE
CONTROLLER