
13
Hot Water Storage Tank with Coil
WTB 220-400
Chapter 9 |
Technical data
Dimensions
Fig. 13
Dimensions of the WTB 220-400 storage tanks.
D
E
F
G
H
I
J
K
L
N
O
W
XL4
UA1
XL5
XL3
XL9
UA2
XL8
QM35
QQ1
XL54
C
B
Table 7.
Connector pipe diameters
Connection
U/m
Storage tank
WTB 220
WTB 300
WTB 400
QQ1
Inspection opening
mm
ø120
XL35
Heating unit connection
cal
1 ¼” Female
1 ½” Female
UA1
Temp. sensor enclosure
mm
ø16 Female
XL4
Hot water outlet
cal
¾” Male
1” Male
XL5
Hot water circulation
cal
¾” Male
UA2
Temp. sensor enclosure
mm
ø16 Female
XL8
Coil supply
cal
¾” Male
1” Male
UA3
Temp. sensor enclosure
mm
-
XL9
Return from coil
cal
¾” Male
1” Male
XL3
Cold water input
cal
¾” Male
1” Male
XL54
Thermometer enclosure
mm
ø10 Female
øA