Installation & Servicing instructions ATAG A-Series
28
9 Filling and bleeding of boiler and CH installation
The central heating installation needs to be lled with potable water. For lling or topping
up the installation use the lling loop according to the following procedure:
1 Turn on the boiler mains electrical supply;
2 the start up procedure the display will read c1 18 (low water pressure).
3 Connect and open the lling loop;
4 Slowly ll the system up to 1.2 – 1.5 bar;
(press the i button until A6 is displayed.
Water pressure: value on the display increases)
5 Close the lling loop;
6 C1 05 appears on the display the moment the pressure exceedes 1.3 bar;
7 The 7 minute de-aeration cylce begins;
8 Vent the entire heating installation starting at the lowest point;
9 Check the water pressure and top up if necessary to 1.2 – 1.5 bar;
10 Disconnect and cap the lling loop;
11 Following the completion of the 7 minute de-aeration cycle [C1 05] the boiler will
switch on for the enabled program.
It may take some time before all the air has disappeared from a lled
installation. Certainly during the rst week sounds may be audible that indicate
air. The automatic air vent in the boiler will let this air escape, causing the water
pressure to drop during this period and water will need to be relled again.
9.1 Hot water supply (combination boilers)
Fill the hot water supply by opening the cold mains isolation valve.
Bleed the hot water installation by opening all hot water taps one at a time. Leave each
tap to run until all air has disappeared from the supply.
Flush with a minimum of 10 litres to rinse any residual contaminants from the hot supply
and boiler.
To Next Page
Loading...
Need help?
General
