Rinnai INFINITY REU-3203W Service Manual page 30

Component Component
Number
Heat Exchanger
10 Outlet
Thermistor
Hot Water
11 Outlet
Thermistor
12 Surge Protector
13 Electrical Fuse
14 Transformer
Bypass Control
15
Device
16 Remote Control
Anti Frost
17
Heaters
Frost Sensing
18
Switch
Infinity REU-3203W
Maintenance
Flow Wiring
Monitor
Chart Diagram
Item
No. No.
No.
E
9 11
2
E
9 02
1
J
8
J
7
A , A, D
2
B
3 12
1
H
4 06
1
J
3
J
4
J
5
J
1
J
8
J
2
- 25 -
Wire Resistance (De-
(O=Operational,
Colour energised)
30C 6.4-7.8 kohm
45C 3.6-4.5 kohm
60C 2.2-2.7 kohm
75 C 1.6 kohm
105C 0.6-0.8 kohm
W-W
> 1 MegaOhm
< 1 Ohm
15C - 11.4 to 14
W-W
kiloOhm
207 - 264 V
W-W
(Oand S)
207 - 264 V
B-Br
(Oand S)
R-R
12 - 21 Ohms 90-110V
BR-GY
2.2 - 3.9 Ohms AC 30 - 50 V (S)
Y-GY
300 - 530 Ohms AC 180 - 220 V (S)
GR-GR
2.4 - 4.3 Ohms AC 12 - 18 V (S)
BR-W
DC 2 - 6 V (O)
OR-W
DC 2 - 6 V (O)
Y-W
15 - 35 kiloOhms
R-W
15 - 35 kiloOhms
BLK-
DC 11 - 13 V (O,S)
BLK
1 kohm at approx
Y-Y
4C
767-883 ohm
1 kohm at approx
4C
Y-Y
367-450 ohm
607-699 ohm
625 ohm at approx
4C
Y-Y
367-450 ohm
607-699 ohm
156 ohm at approx
Y-Y
4C
767-883 ohm
156 ohm at approx
Y-Y
4C
< 1 Ohm at approx
B-B
4C
Voltage
Notes
S=Standby)
Resitances at vari-
ous temperatures
Maintenance Moni-
tor Item 11
explains how water
temperature read-
out in C can be
obtained from a
Controller unit
whilst the unit is
operational.
Open Circuit
(defective)
Short Circuit
(defective)
Resitances at a par-
ticular temperature
Maintenance Moni-
tor Item 02
explains how water
temperature read-
out in C can be
obtained from a
Controller unit
whilst the unit is
operational.
Maintenance Moni-
tor Item 12
explains how the
position (open,
closed or in
between) of bypass
servo can be deter-
mined from the
Controller display
whilst the unit is
operational.
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