Operation Manual

Operating instructions ATAG E-Series

Replenishing the central heating system

The central heating installation needs to be filled with potable (drinking) water.

For topping up the installation you use the filling loop according to the following

procedure:

(If in any doubt please contact your dealer)

1 Switch all functions off (heating, DHW and pump);

2 Briefly push the 'STEP'-button: P x.x = water pressure in bar;

3 Slowly open the filling loop (Indication on display increases);

4 Fill up slowly to 1.5 to 1.7 bar;

5 STOP appears on the display;

6 Close the filling loop;

7 De-aerate the complete installation, start at the lowest point;

8 Check the water pressure and if necessary top it up;

9 Close the filling loop;

10 Activate functions required (heating , DHW and/or pump );

11 If A xx appears on the display, wait for 17 minutes.

Do not press any further keys or the deaeration period will start again;

12 Check the waterpressure and if necessary top it up to 1,5 to 1,7 bar;

13 Close the filling loop;

14 Press the ‘STEP’-button;

15 Be sure that the filling loop is closed.

After the automatic de-aeration program (A xx) is finished the boiler will return

to the Good reading or Technical reading.