Subject
De
fi
ni
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on
Part’s Function
1- The component that protects the device from overheating by measuring the exhaust gas
temperature.
Impact in Case of Malfunction
1- If the surface -type NTC sensors work incorrectly, the device may continue to run without
giving an overheating warning, causing deformation in the heat exchanger.
2- The device does not work.
Main Associated
Error Codes
E18, F07, F53
Error Diagnostics and Test
Method
Visual Inspection and Testing:
1-
Ensure that the cable connections are properly done and undamaged.
2-
Check if there is any rusting, corrosion, or deformation at the immersion probe.
3- Measure the resistance.
Maintenance Requirement
There is no special maintenance requirement.
Test Descrip
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on
Test Method
Resistance Measurement for
The Immersion-type NTC
Disconnect the device from power. Remove the exhaust gas temperature sensor from the
boiler and wait for it to cool at room temperature for about 10 minutes. Measure the
resistance between the NTC ends. Ensure that the resistance value is appropriate according
to the table below.
Ambient Temperature
(°C)
Resistance measured at the ends of the exhaust gas temperature sensor
(kohm)
0-5
30.9-24.5
6-10
24-19.5
11-15
19-15.7
16-20
15.2-12.7
21-25
12.2-10.3
26-30
9.8-8.4
31-35
8-6.9
36-40
6.5-5.7
• Exhaust Gas Sensor
Table 2
2
73
Summary of Contents for CONFEO PREMIX P 14 HM
Page 1: ...SERVICE MANUAL CONFEO PREMIX CONDENSING BOILER CONFEO PREMIX P 14 20 24 28 30 35 HM HCH HST...
Page 24: ...12 ELECTRICAL DIAGRAM Figure 15 24...
Page 34: ...Low Voltage Removing installing the pump cable FAN PWM CABLE Figure 39 Figure 40 34...
Page 52: ...Figure 76 Figure 77 52...
Page 83: ......
