12
Hot Water Storage Tank with Coil
WTB 220-400
Chapter 9 |
Technical data
9. Technical data
Table 6.
Technical data
Parameter
U/m
Storage tank
WTB 220
WTB 300
WTB 400
Energy efficiency class
-
C
C
C
Net storage volume (V)*
l
211,9
278,5
372,3
Standing loss (S)*
W
75,4
90,4
94,2
Total volume
l
220
300
400
Coil area
m
2
1,4
1,6
1,6
Coil volume
l
4,2
9,38
9,38
Max tank operating
temp.
°C
85
Max allowable
instantaneous temp.
in the tank
°C
98
Max coil operating
temp.
°C
110
Max tank operating
pressure
bar
6
10
Max coil operating
pressure
bar
16
Coil power **
kW
25
26
Coil capacity **
l/h
630
640
Electric heating module
connection
inch
1
¼
’’ female
1
½
” female
Corrosion protection
ceramic magnesium anode
Anode connection
inch
1”
1¼” female
Magnesium anode
dimensions
mm
ø26x950
ø33x720
Weight
kg
80
115
133
** At the heating medium flow rate equal to 2.5 m3/h and the heating medium temperature 70 °C, supply water
temperature 10 °C, and hot water temperature 45 °C.
* Acc. to EU regulations No. 812/2013 & 814/2013.