Installation & Servicing instructions ATAG A-Series
31
11 Commissioning the boiler
Make sure before the boiler is put into operation that the boiler and installation have been
fully bled. Bleed the gas line and open the gas valve of the boiler. The boiler requires
no adjustment of the burner pressure and quantity, because it is self-regulatory and has
been set in the factory and should not be reset.
Insert the plug into the wall socket;
There is a start-up procedure with a segment test of the display;
The lights come on and after the segment test go out again;
If the water pressure falls below 1.0 bar c1 18 will appear in the display;
This will disappear again the moment the water pressure is higher than 1.3 bar and the
de-aeration program will start (c 1 05).
This will take approx. 7 minutes and will be followed by the standard view.
The boiler will switch on immediately to reach the desired pre-heat temperature of the
hot water supply (Comfort setting).
11.1 Hot water supply
The DHW program is always active after start-up.
This is indicated by the middle .
If there is hot water request, this is indicated by
and the hot water supply will be
activated. The circulation pump will start circulating and the boiler will switch on
. By
default the hot water supply is set to Comfort. A change to Eco is possible by means of
Parameter 684. See chapter 11.4.
11.2 CH system
The CH program is always active after start-up.
This is indicated by the upper .
If there is heat request, it is indicated by
and the heating will be put into operation .
The circulation pump will switch on and the boiler will switch on after 1 to 2 minutes.
11.3 Pump function
By default the boiler is set in such a manner that the pump will switch on in case of a heat
request for CH or DHW. Switching on and off is managed entirely by the control system.
Danger of frost
If there is danger of frost damage to the CH installation and there is no outside sensor
connected, it is advisable to let the pump run continuously.
With Parameter 684 the pump can be switched on continuously. See chapter 11.4.
If the pump is set too continuously this is displayed with the lowest in combination
with
or .
If an outside sensor is connected, then the controls will regulate the pump:
- In case of outside temperatures between +1.5 and -5°C the pump will run for 10
minutes every 6 hours.
- In case of outside temperatures below -5°C the pump will run in frost protection mode.
Standard view with device in
operation for CH
Segmenttest
De-aeration program active
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