Thermann 16LP50-6, Руководство по обслуживанию

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Fault findings
PCB
2
3
4
6
1
10
8 9
5
PCB
2
6
10
8 9
5
PCB
2
6
10
8 9
5
PCB
2
3
4
6
1
10
8 9
5
< Fig. 1>
Continuity of Fuse
< Fig. 2>
Water Flow Sensor
< Fig. 3>
Voltage of Ignitor Transformer
< Fig. 4>
Continuity of Thermal Fuse
< Fig. 5>
Voltage or Resistance of Gas Valve Assembly
< Fig. 6> < Fig. 7>
Continuity of Over Heat
Thermostat
Voltage of Gas Control
Valve
< Fig. 8>
Resistance of Temperature
Sensor
After pulling out connector No.4 on PCB,
connect two pins of the bottom with flat
blade screwdriver directly.
Thermal fuse
Over Heat Thermostat
5A
OR
Voltage Resistance
Temperature Sensor
See
Table 3
4
4
unused pin
Connect directly pulling
out connector
Connect
directly
0
0
0
BL
O
Y
Y(C)
BL
G
Y(C)
Y
O
G
8
8
Pull out
Measure registance with
pulling out connector
Measure voltage without
pulling out connector
See
Table 1
GR
GR
DC1.8 - 16.2V
Measure voltage without
pulling out connector
9
Measure voltage without
pulling out connector
BK
BK
AC240V
Y(C)-G
Y(C)-O
Y(C)-BL
Y(C)-Y
ALL
DC12V
< Table 1 >
Resistance of Gas Valve Assembly
Lead wire Resistance (Ω)
Yellow(C)-Orange Gas valve 1 Approx. 33
Yellow(C)-Blue Gas valve 2 Approx. 33
Yellow(C)-Green Gas valve 3 Approx. 33
Yellow(C)-Yellow Main gas valve Approx. 26
Grey-Grey Gas control valve Approx. 65
< Table 3 >
Resistance of Temperaturer Sensor
Temperature
(°C)
Resistance (kΩ)
(Incoming,Outgoing)
Resistance (kΩ)
(Ambient)
10 Approx. 15.8 Approx. 20.5
20 Approx. 10.4 Approx. 12.6
35 Approx. 5.9 Approx. 8.0
40 Approx. 4.9 Approx. 5.2
50 Approx. 3.5 Approx. 3.5
< Table 2 >
Gas pressure (kPa)
Gas type
Gas supply
pressure
Model Manifold pressure
Maximum Minimum
Propane 2.75-7.0
16 0.91 0.195
20 1.40 0.195
26 1.50 0.195
Natural Gas 1.13-5.0
16 0.56 0.160
20 0.80 0.160
26 0.80 0.140
Abbr. of color :
Y : Yellow R : Red G : Green
O : Orange BK : Black GR: Grey
BL : Blue W : White