3. Find the
as the picture, unscrew the valve by hand or long nose pliers.
purging valve
4. Open the water inlet valve to run the water flow into the coil, and check the water in a transparent
pipe connected with the valve. If the transparent pipe is filled with water without any bubbles, the air
is completely purged from the coil. Then close the purging valve.
Figure 3
Figure 4
Transparent pipe
5. Installation
8
