Rinnai REU - 16 FUA - E - Manual (Page 45)

45
DIAGNOSTIC POINTS
TRANSFORMER VOLTAGES AND RESISTANCES
Flow
Chart
No.
Component
Measurement point Determination (normal figure)
Upper : Voltage
Lower : Resistance, Current
Remark
CN Wire Color
I B-Br AC200㨪AC240V AC power
Ԙ GEARED
MORTOR A
1
R-B DC11㨪13V
10㨪30ǡ Drive power
R-Bk DC11㨪13V Control power
Y-Bk Below DC1V(limiter ON)
Below DC4㨪6V(limiter OFF) Full open limiter
Br-Bk Below DC1V(limiter ON)
Below DC4㨪6V(limiter OFF) Full close limiter
ԙ REMOTE CON
TROLS E
1
Bk-W DC11㨪13V
Ԛ
WATER FLOW
SENSOR A
2
R-Bk DC11㨪13V
ON2.4L/min
(35Hz) over 2100
pulse/min.
OFF1.7L/min
(24Hz) below 1440
pulse/min
Y-Bk DC4㨪7V(pulse 17㨪400Hz)
ԛ
FAN MOTOR B
1
R-Bk DC6㨪40V More than 1200
pulse/min
Y-Bk DC11㨪13V
W-Bk DC2㨪10V(pulse 20㨪400Hz)
Ԝ FLAME ROD C
2
Y-earth More than DC1ǴA At ignition
ԝ
HOT WATER
THERMISTOR A
4
W-W 15 ̖͠11.4㨪14.0kǡ
30 ̖͠ 6.4㨪 7.8kǡ
45 ̖͠ 3.6㨪 4.5kǡ
60 ̖͠ 2.2㨪 2.7kǡ
105̖͠ 0.6㨪 0.8kǡ Measure Thermis-
tor side (small wire)
Ԟ
AIR INTAKE
THERMISTOR A
3
Y/Bk-Y 15 ̖͠20.1㨪17.9kǡ
30 ̖͠10.2㨪 8.9kǡ
45 ̖͠ 5.5㨪 4.7kǡ
60 ̖͠ 3.1㨪 2.6kǡ
105̖͠ 0.7㨪 0.5kǡ Measure Thermis-
tor side (small wire)
ԟ THERMAL
FUSE C
3
A
5
R-switch Less than 1ǡ
Ԡ
IGNITOR G
1
Gy-Gy AC200㨪240V
ԡ MAIN SOLE-
NOID VALVE F
1
P-Bk DC200㨪240V
6.0㨪7.8Kǡ
Ԣ SOLENOID
VALVE 1 F
2
B-Bk DC200㨪240V
7.8㨪10.8Kǡ
ԣ
SOLENOID
VALVE 2 F
3
Y-Bk DC200㨪240V
7.8㨪10.8Kǡ
Ԥ MODULATING
VALVE C
1
P-P DC2㨪15V
67㨪83ǡ
Connector Wire Color Normal Value
H W-W AC200㨪240V 11㨪20ǡ
D Or-Or AC49㨪55V 1.3㨪1.7ǡ
D B-Br AC12㨪14V 0.7㨪1.3ǡ
D Br-Y AC195㨪216V 175㨪215ǡ