Rinnai REU-VRM3237WC Service Manual

Infinity REU-VR3237WG /HD250e REU-VRM3237WC - 15 - Issue 1 - 19/05/09 ©Rinnai
12. Diagnostics Points
FLOW
CHART
No.
COMPONENT
MEASUREMENT POINT
CN
WIRE COLOUR
NOTE
1
SURGE PROTECTOR
AC207〜264V
DC11〜13V
Bk-Bk
WATER CONTROLLER
4
DC11〜13V
R-Bk
G
3
WATER FLOW SENSOR
5
6
P-P
E
2
Y-Bk
DC4〜7V（PULSE 17〜460Hz）
R-Bk DC6〜45V
67〜81Ω
DC2〜15V
MODULATING VALVE
WATER FLOW
CONTROL DEVICE
Gy-Br
Gy-Y
R-B
BELOW DC1V(LIMITER ON)
DC11〜13V
DC4〜6V（LIMITER OFF）
FULL OPEN POSITION
DC11〜13V
Gy-O
OPERATE ELECTRICITY
BELOW DC1V(LIMITER ON)
DC4〜6V（LIMITER OFF）
ON2.7l/MIN (30Hz)
OVER 1800PULSE/MIN
GND
D
1
B-Br
A
1
COMBUSTION FAN
7
Y-BODY EARTH
AC5〜150V
OVER DC1μA
AFTER IGNITION
FLAME ROD
E
1
8
OFF2.0l /MIN （20Hz）
BELOW 1200PULSE/MIN
G
6
（33〜400Hz）
H
1
Br-W
O-W
Y-W
R-W
DC12V（OPERATING DC2〜6V）
15〜35Ω
GND
3
2
17
BY-PASS FLOW
CONTROL DEVICE
NORMAL VALUE
CONTROL ELECTRICITY
FULL CLOSE POSITION
FLAME CONDITION
B
1
GND W-Bk
Y-Bk
DC11〜13V
DC6〜45V
Y-FLAME ROD
Gy-Gy
C
1
IGNITER
P-Bk
MAIN SOLENOID VALVE
R-Bk
F
2
THERMAL FUSE
G
1
R-R
W-W
G
5
W-P
AC207〜264V
DC11〜13V
O-Bk
BELOW 1Ω
9
13
14
15
16
15°C… 11．4〜 14．0kΩ
30°C… 6．4〜 7．8kΩ
45°C… 3．6〜 4．5kΩ
60°C… 2．2〜 2．7kΩ
105°C… 0．6〜 0．8k Ω
F
1
F
3
OUTGOING THERMISTOR
G
4
F
4
Y-Bk
DC11〜13V
17
DC11〜13V
DC11〜13V
HEAT EXCHANGER
OUTGOING THERMISTOR
SOLENOID VALVE 1
SOLENOID VALVE 2
SOLENOID VALVE 3
E
3
12
W-W
10
35〜41Ω
37〜43Ω
37〜43Ω
37〜43Ω

Rinnai REU-VRM3237WC Specifications

General

Brand	Rinnai
Model	REU-VRM3237WC
Category	Water Heater
Language	English