26
HOW TO
5
HOW TO
5.1
How to increase the system pressure
− Make sure the drain cock (1) is closed before you start filling
the system
1
− Unscrew the air vents release cap
− Open the shut-off cocks in order to slowly fill the system
− Use a pressure gauge to check that the pressure is rising and
the water is exiting through the air vents
− Close the shut-off cocks after the pressure reaches 21.75 psi
(1.5 bar)
− Start the system pumps and the boiler’s pump
− During this stage, check that the air is correctly eliminated
− Restore the pressure if necessary
− Switch the pumps off and on again
− Repeat the last three steps until the pressure has stabilized.
9
NOTE:
The system must be filled up slowly the first time; once
it is filled and the air is expelled it should never need to be
topped up again.
9
NOTE:
Systems should also be operated at maximum working
temperature the first time they are started up, in order to fa-
cilitate de-aeration. (Gas is not released from the water at low
temperatures).
9
NOTE
: An automatic air purge can be performed during the first
ignition. The parameter that sets the air purge cycle is Par. 139.
See section "Parameters' list" for more information.
5.2
How to temporary or short-term shut-down
In the event of a temporary or short-term shut-down (e.g. due to
holidays), proceed as follows:
− Press the MENU button and select "Time Schedule" with the
▲
/
▼
buttons, confirm with
●
button.
− Select "Holiday Schedule" with the
▲
/
▼
buttons, and con-
firm with the
●
button.
“
Clock Program
”
“
Program Group
”
“
Burn hours till service
”
“
Reset Service Reminder
”
“
Holiday Settings
”
− Select "Mode" with the
▲
/
▼
buttons, and confirm with
●
button. Select “System” mode and confirm.
“
Holiday Settings
”
“
Mode
”
“
System
”
“
Holiday Setpoint
”
“
Comfort
”
“
Begin Date
”
“
Saturday
”
01-08-2015
“
End Date
”
“
Saturday
”
01-08-2015
− Select "Holiday Setpoint" with the
▲
/
▼
buttons, and con-
firm with
●
button.
− Select “Antifreeze” holiday setpoint and confirm.
“
Holiday Settings
”
“
Mode
”
“
System
”
“
Holiday Setpoint
”
“
Anti Fr
”
“
Begin Date
”
“
Saturday
”
01-08-2015
“
End Date
”
“
Saturday
”
01-08-2015
