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
〜
81
Ω
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
DC1
μ
A
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
〜
35
Ω
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
1
Ω
9
13
14
15
16
15
°
C
…
11
.
4
〜
14
.
0k
Ω
30
°
C
…
6
.
4
〜
7
.
8k
Ω
45
°
C
…
3
.
6
〜
4
.
5k
Ω
60
°
C
…
2
.
2
〜
2
.
7k
Ω
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
〜
41
Ω
37
〜
43
Ω
37
〜
43
Ω
37
〜
43
Ω
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