193
18.6 To Remove Air Purge Valve
Make sure plug is fully
close in clockwise direction.
Apply some water based
grease on packing surface
before fix with shut off valve.
During reinstall Air Purge Valve.
Packing
Air Purge Valve
1. Turn the Air Purge Valve
anti-clockwise, then release
the retaining ring and pull
out the air purge valve.
18.7 To Remove Flow Sensor
1. Disconnect the connector of CN-FLWSEN
from the Water side Electronic Controller Board
3. Lift up slowly to remove the flow sensor.
2. Remove 2 retaining ring
Flow Sensor
When reinstall the water pipe, use grease or water
at the joining