System Charging; System Draining - TCF ANL020 Installation Manual

ANL - ANLH 020-202
WARNING
Confi rm the hydraulic integrity
of thejoints.
WARNING
It is recommended to repeat
this procedure after the unit
has operated for a few hours
and to periodically check the
system pressure. Charging to
be done with unit off (pump
OFF).

4.5. SYSTEM CHARGING

Before commencing the charging procedure position the main iso-
lator of the unit in the OFF position.
1. Ensure that the system drain valve is closed
2. Open all the system air vents and of the terminal units
3. Open the system isolating valves
4. Start fi lling slowly opening the system water charging valve
external to the unit
5. When water exits the terminal units air vents close them and
continue charging until the required system operating pressure
is reached.

4.6. SYSTEM DRAINING

1. Before commencing draining the draining procedure position
the main isolator of the unit in the OFF position
2. Ensure the system water charging valve is closed
3. Open the system drain valve external to the unit and all the
system air vents and of the terminal units.
4. TYPICAL FYDRAULIC CIRCUITS
25