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19.4 To Remove Electronic Controller
1. Disconnect all connectors from
main PCB. (CN-FLWSEN, CN-PUMP1,
CN-TH1, CN-TH2, CN-TH3, CN-OLP1,
CN1, CN2, CN3, CN4, CN5, CN6, CN-CNT2,
CN-DPS)
2. Detach remote controller, 3-way valve and
all wires. (AC1-L3, AC1-N, G01, G05, DATA,
G02, L2, L1, G03, AC2-L2, HT1-L2, HT1-L3,
AC2-L3, AC2-N2)
19.5 To Remove Flow Sensor and Air Purge Valve
Air Purge Valve
3. Remove 2 retaining rings,
then remove the Flow
Sensor.
2. Detach the Flow Sensor lead wire.
1. Turn the Air Purge Valve
anti-clockwise then remove.
When reinstall Flow Switch, ensure the arrow on the flow switch is parallel with the pipe shaft and is facing in
the direction of flow.
During reinstall Air Purge Valve.
Make sure plug is fully close
in clockwise direction.
Packing
Apply some water based grease
on packing surface before fix
with shut off valve.
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