
12
Subject to change without notice | 83018600hUK – Translation of the original operating manual | ait-deutschland GmbH
Technical Data
Tank name
WWS 303.1
WWS 303.2
Type
Domestic hot water tank ı Solar domestic hot water tank
• ı —
• ı —
Hot water tank
Energy efficiency class according to ErP
…
A
B
Standing loss according to ErP (at 65°C)
W
44
70
Tank volume according to ErP
l
300
295
Nominal capacity
l
276
271
Max. operating pressure (except SVGW)
bar
10
10
Test pressure
bar
13
13
Max. operating temperature
°C
95
95
Corrosion protection according to
…
DIN 4753
DIN 4753
Enamelled surface
• yes – no
•
•
Mg protective anode diameter x length
… x mm x mm
G 1¼" x 33 x 750
G 1¼" x 33 x 750
Heat exchanger heat pump
Exchanger area
m²
3,5
3,5
Pressure loss ı Flow
bar ı l/h
0,024 ı 2000
0,024 ı 2000
Exchanger capacity
l
24
24
Max. operating pressure
bar
16
16
Test pressure
bar
21
21
Max. operating temperature
°C
110
110
Maximum heating output of the heat pump at heat source max.
16
16
Solar heat exchanger
Exchanger area
m²
—
—
Pressure loss ı Flow
bar ı l/h
— I —
— I —
Exchanger capacity
l
—
—
Max. operating pressure
bar
—
—
Test pressure
bar
—
—
Max. operating temperature
°C
—
—
General unit data
Dimensions: Diameter ı Height (see dimensioned drawing for rest)
mm x mm
700 ı 1335
700 ı 1335
Tilt dimension
mm
1440
1440
Domestic hot water connections
…
2 x R 1¼" AG
2 x R 1¼" AG
Heating water connections
…
2 x Rp 1¼" IG
2 x Rp 1¼" IG
Solar connections
…
—
—
Net weight
kg
135
135
Cleaning flange
Nominal size
DN120
DN120
Recommended tightening torque for cleaning flange
N.m
43
43
Tests
…
SVGW / SEV
SVGW / SEV
Heating element connections
…
Rp 1 ½"
Rp 1 ½"
Heating element (optional)
…
EHZI 45F
EHZI 45F
Maximum output of electric heating element
kW
1 x 4,5
1 x 4,5
Insulation
Rigid PU foam material
• yes – no
• + VIP
•
Insulation thickness
mm
45
45
as per DIN 4753
• yes – no
•
•
Sheet metal jacket ı Foil jacket
• yes – no
— ı •
— ı •
813558d