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Navien NCB-210 Service Manual

Navien NCB-210
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76 NCB Service Manual
Version 1.0
4.9.17 Auto feeder Valve
Part
Check Point
Function
Detect low and high water pressure using the electronic water pressure sensor If water pressure is low,
Water filling system operates automatically
Failure Event
1.
Water filling system does not operate automatically.
2.
Water filling system operates continuously.
Effects
1.
System is low water pressure
2.
If system is high water pressure for automatic filling, it is over flow
Error Code
E351, E352
Diagnostic
1.
Visual inspection: check the Auto feeder valve connection wire.
2.
Voltage check: Check range of voltage shown below.
Color/Number of wires
Blue-Blue : ON DC 22 ~ 24V, OFF 0 V
<Auto feeder valve>

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Navien NCB-210 Specifications

General IconGeneral
BrandNavien
ModelNCB-210
CategoryBoiler
LanguageEnglish

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