Rinnai R94LSe Installation Manual download pdf (Page 39)

VB Series Outdoor LS Manual 39

Ladder Diagram (for R98LSe and R98LSe-ASME)

RELAY 1

IG

FROST SENSING

SWITCH

ANTI-FROST HEATER

IGNITION

COMBUSTION

FAN

3A(FUSE)

HOT

NEUTRAL

VARISTOR

DC12.6V

SOLENOID

DRIVING

CIRCUIT

CPU

CENTRAL

PROCESSING

UNIT

FAN

REMOTE

CONTROLLER

POV

FAN

CONTROL

CIRCUIT

BY-PASS FLOW

CONTROL DEVICE

CIRCUIT

THERMAL FUSE

OVER HEAT

SWITCH

MODULATING

SOLENOID

VALVE

DC40V

DC5V

A B C

SG

SWITCHING

POWER SUPPLY

THERMISTOR

CIRCUIT

B

SG

RELAY 1

A

WATER FLOW

SENSOR

CIRCUIT

WATER FLOW

CONTROL DEVICE

CIRC UIT

A

SG

A

SG

SG

A

QS

SG

FR

FLAME

DETECTING

CIRCUIT

FLAME ROD

GND

SG

A

REMOTE

CONTROLLER

CIRCUIT

A B

E

PG

A BC

SG

SG

B

VARI STOR

ARRESTER

GND

SG

WATER FLOW

SENSOR

WATER FLOW

CONTROL DEVICE

BY-PASS FLOW

CONTROL DEVI CE

M

M

DC12V

DC170V

D

E

PG

SV3

SV2

SV1

SV0

RELAY

DRIVING

CIRCUI T

D

BY-PASS SERVO MODEL ONLY

OUTGOING WATER

THERMISTOR

HEAT EXCHANGER

THERMISTOR

AIR TEMPERATURE

THERMISTOR

INDOOR MODEL ONLY

MODULATING

VALVE POWER

CONTROL

CIRCUIT

1 2 ... 34 35 36 37 38 39 40 41 42 43 44 ... 59 60

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