16
4.
ENTER – FLUSH MODE – DP
5.
Press ENTER 4 times to go back to operation (Accumulation Counters may be reset during these entries).
A.5 TECHNICAL DATA
Power source:
6v supplied by 4 x “D” size alkaline batteries.
or 12v DC dry battery or AC to DC plug in adapter
or 12v rechargeable battery with solar panel of 2 watts
Outputs :
12v DC latching solenoids.
DP:
Embedded electronic analog DP sensor
or external dry contact DP sensor.
Pressure Sensor:
Dry contact pressure sensor
Operating temperature:
0-60 °C.
A.6 Troubleshooting
A.6.1
Problem:
Excessive pressure drop across the filter
Possible causes:
1.
Filter Screen is clogged due to lack of pressure during Self-Clean
Solution
• Make sure water pressure during Self-Clean is at least 40 psi.
• Close the isolation valve on Outlet pipe of the HN-G
• Press the (M) button on the Backwash Controller
• HN-G will perform a backwash
• Re-open isolation valve on Outlet pipe of the HN-G-02
2.
Filter Screen is still clogged.
Solution:
• Remove the Filter Screen and manually clean it. Follow instructions in Section 5a above
3.
Wait Time between Self-Cleaning cycles is too long.
Solution:
• Adjust Interval timer in Backwash Controller
4.
Problems with Solenoid/Backwash Controller Unit.
• Solution: Contact Rain Bird
A.6.2
Problem: Valve malfunction
Possible causes:
1.
Ruptured Diaphragm
• Replace Diaphragm
2.
Solenoid malfunction
• Replace Solenoid
3.
Backwash Controller malfunction
• Solution: Contact Rain Bird
