Rinnai REU-VR1620WB, Руководство по обслуживанию

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REU-VR1620WG / REU-VR1620WB / REU-VR1620WS / REU-VR2024WG - 21 - Issue 1 - 5/08/09 ©Rinnai
4. Solenoid Valve 1 (Small) (SV
1
)
Check Solenoid valve if error indicator “11” is displayed.
a) Measure resistance between Blue-Black wires of solenoid connector ( I
5
)
Normal: DC11~13V
If normal, proceed to b.
Faulty: Replace PCB.
b) Measure resistance between Solenoid 1 connectors.
Normal: 35~41

If normal, proceed to Solenoid Valve 2 ( SV
2
) Circuit
Faulty: Replace Solenoid 1
5. Solenoid Valve 2 (on manifold)
Check Solenoid valve 1 if error indicator “11” is displayed.
a) Measure resistance between Blue-Black wires of main solenoid connector ( I
6
)
Normal: DC11~13V
If normal, proceed to b.
Faulty: Replace PCB.
b) Measure resistance between Solenoid 1 connectors.
Normal: 35~41

If normal, proceed to Solenoid Valve 2 ( SV
2
) Circuit
Faulty: Replace Solenoid 1
6. Solenoid Valve 3 (Large) (SV
3
)
a) Measure voltage between black-yellow and black wires of solenoid connector (
I
7
)
Normal: DC11~13V
If normal, proceed to b.).
Faulty: Replace PCB.
b) Measure resistance between Solenoid Valve 2 connectors.
Normal: 37~43

If normal, proceed to Modulating Valve Circuit.
Faulty: Replace Solenoid Valve 2.
7. Modulating Solenoid Valve (POV)
a) Measure voltage between pink-pink wires of the modulating solenod valve.( I
2
).
Normal: DC2.0~15V
If normal, proceed to c.).
Faulty: Replace PCB.
b) Measure resistance between modulating solenoid valve connectors.
Normal: 65~85

If normal, proceed to b.).
Faulty: Replace PCB.
c) Check the gas burner pressure changes when set temperature on the water control changes from
37°C to 55°C.
Normal: Burner gas pressure changes. Go to Water Flow Servo Circuit.
Faulty: Burner gas pressure does not change. Replace Modulating Valve.