Atag A203C Installation & Servicing Instructions

Installation & Servicing instructions ATAG A-Series
7
1 Heat exchanger
2 Ignition unit
3 Fan unit
4 Air supply damper
5 Gas block
6 Automatic de-aerator
7 DHW plate heat exchanger
8 Control Management System
9 Control panel
10 Three-way valve
11 Circulation pump (A-label)
12 Flow restrictor
13 Flue gas exhaust
14 Combustion air supply
15 Information plate
16 Expansion vessel
T1 Flow sensor
T2 Return sensor
T3 Hot water sensor
F1 DHW Flow sensor
P1 Water pressure sensor
G Gas pipe
ATAG A Figure 4.a
A Flow pipe CH
R Return pipe CH
C Condensation / safety valve
discharge pipe
K Cold water pipe
W Hot water pipe
T1
4
2
P1
T2
F1
1
5
10
8
12
11
7
K
C
R
G
W
15
T3
3
14
13
6
9
A
17
16
16
18
17 Safety valve
18 DHW Economiser
19 Flue non return valve
19

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