Atag A203C Installation & Servicing Instructions

Installation & Servicing instructions ATAG A-Series
2
Explanation of the control panel and buttons
%
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°C
(
OK )
( ESC)
+
-
-
i
R
+
Flame Boiler in operation
Bell Error indication
Spanner Service-mode or blocking
Tap DHW function (request for heat)
Radiator Central heating function (request for heat)
Central heating program
Hot water program
Pump program
Scroll and +/-function (ancillary function) OK and Escape (ancillary function)
Setting of hot water temperature Setting of boiler temperature (max. supply temperature)
Information button Reset button
LCD display with backlight
Directly operated soft cushion buttons
Information on the water pressure:
The default view of the display shows the water pressure (bar) in the CH system.
If the water pressure gets too low it is indicated as follows:
Press the i-button until A6.
or The actual water pressure will be shown
After the installation has been relled and if the pressure was below 0.7 bar the de-
aeration program will start. This will last for approx 7 mins.
If the water pressure is too high, it will be displayed as follows:
Water pressure is too low (<1.0 bar).
Bell symbol visible and c1 18.
Power is reduced by 20%.
The installation should be relled.
Water pressure is too high (> 3.0 bar).
Bell symbol visible and c1 17.
The boiler is taken out of operation.
The installation pressure should be reduced
by draining water from the heating system.
Water pressure is too low (<0.7 bar).
Bell symbol visible and c1 18.
The boiler is taken out of operation.
The installation should be relled.
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Atag A203C Specifications

General

Type	-
Fuel type	Natural gas
Boiler system	Combi boiler system
Product color	White
Heater location	Indoor
Placement supported	Vertical
Boiler type (NL label)	HR
HR inspection label class	107
Maximum power	20000 W
Minimum power	4400 W
Water flow (60 °C)	6 l/min
Domestic Hot Water (DHW) flow	10.7 l/min

Weight and Dimensions

Depth	395 mm
Width	500 mm
Height	650 mm
Weight	37000 g