Atag A203C Installation & Servicing Instructions

Installation & Servicing instructions ATAG A-Series
18
The appliance concentric connection diameter is 60/100 mm, to which the ue gas
outlet and air supply system can be tted, with or without elbow pieces. The maximum
permissible pipe length is set out in Table 6.8.1.a.
Boiler conversion from concentric to parallel
It is also possible to use a parallel pipe connection of 2x 80 mm. In this case a conversion
kit 'concentric to parallel' should be ordered. Art.nr. S4440520.
A. 1. Push the 2 clips slightly outwards.
B. 2. Pull the concentric adapter out of the boiler.
3. Press the cover in the connection at the back from inside out.
C. 4. Pull the rubber seal around the bottom of the ue connector.
5. Push the ue connector in the boiler, in the boiler ue pipe until
‘CLICK’.
6. Push the ø125mm cover over the ue connector in the ø125mm
opening until ‘CLICK’.
7. Push the rubber plug in open position in the O
2
measuring opening and
close the stop.
8. Push the gasket around the top of the ue connector.
D. Connect the parallel ue gas and air intake system (2x ø80mm).
A
1
B
2
3
C
4
7
5
6
8
D
boiler conversion from
concentric to parallel
Figure 6.8.b

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