Table of Contents
Advertisement
Draining and Flushing the Solar Storage Tank
Open circuit system
11.
Undo the union at the cold water inlet to the solar cold pipe.
Undo the fitting and remove the solar cold pipe from the solar storage tank.
12.
Connect a hose to the tank connection. Let the other end of the hose go to a drain.
Closed circuit system
13.
Undo the union at the cold water inlet to the solar storage tank.
Connect a hose to the tank connection. Let the other end of the hose go to a drain.
Open and Closed circuit system
Open the temperature pressure relief valve by holding the lever in the raised position.
14.
This will let air into the solar storage tank and allow the water to drain through the hose.
If flushing the solar storage tank:
15.
▪
Disconnect and remove the booster heating unit.
▪
Place a hose inside the tank.
▪
Open the isolation valve to the hose.
▪
Allow the hose to run until water runs clear from the hose connected to the cold water connection.
▪
When satisfied the solar storage tank is flushed, close the cold water isolation valve to the hose and
remove the hose from the tank.
▪
Replace and reconnect the booster heating unit.
16.
When satisfied the solar storage tank is drained and / or flushed, remove the hose from the cold water
inlet connection.
Open circuit system
17.
Reconnect the solar cold pipe to the solar storage tank and cold water pipe work to the solar cold pipe.
Closed circuit system
18.
Reconnect the cold water pipe work to the solar storage tank.
Refit the closed circuit pressure relief valve on the right hand side of the solar storage tank and secure
19.
with the retaining clip.
Remove the hose from the valve drain port of the fill drain valve assembly.
20.
DRAINING AND FLUSHING THE SOLAR STORAGE TANK
71
Advertisement
Table of Contents
