4
The water expands when heated. The amount of water expansion according to temperature is shown in the table and
graphic below .
For example; At a temperature increase of 50 ° C, the volume of water increases by 1.19%.This water has to be evacuated.
Water can not be compressed like air. If the expanding water does not go out of the water heater, it presses the shaft and
explodes the water heater at the weakest point.
Expansion Tank Application
The closed expansion tank volume to be installed on the cold water inlet side of the device should be selected at least
10% of the device volume. The expansion tank can operate up to 8 bar and the pre-pressure should be set below 10% of
the operating pressure. The most important point to pay attention to in the equipment equipments is the connection of
the automatic safety valve and expansion tank to the system. Always do install the expansion tank and the safety valve
between the device and the valve. ALWAYS DO CHECK the pre- pressure of the expansion tank twice a year.
WATER EXPANSION ACCORDING TO TEMPERATURE DIFFERENCE
“AN AUTOMATIC TYPE MAX. 8 BAR SAFETY VALVE COMPLY TO TS EN 1487: 2016 STANDARD MUST
BE USED FOR INSTALLATION OF THE DEVICE.”
T | °C
0
10
20
30
40
50
60
70
80
90
100
110
120
d |
kg/lt
0.9998
0.9996
0.9982
0.9956
0.9922
0.9880
0.9832
0.9777
0.9718
0.9635
0.9583
0.9519
0.9431
V |
kg/lt
1.0002
1.0004
1.0018
1.0044
1.0079
1.021
1.071
1.0228
1.0290
1.0359
1.0435
1.0515
1.0603
Expansion |
%
0
0.02
0.16
0.42
0.77
1.19
1.67
2.26
2.88
3.57
4.33
5.13
6.01
Volume | liter
ØD
A
B
Min. Ceiling Height
Unit
mm
mm
mm
mm
100
490
875
1125
1430±10
160
590
875
1125
1475±10
200
590
875
1125
1920±10
300
700
875
1125
1810±10
400
750
875
1125
2500±10
500
750
875
1125
2850±10
800
900
875
1125
3150±10
1000
1000
875
1125
3270±10
1500
1120
875
1125
3500±10
2000
1260
875
1125
3430±10
2500
1460
875
1125
3400±10
3000
1460
875
1125
3820±10
Expansion %
Water Temperature °C
10.00
5.00
4.00
3.00
2.00
1.00
0.50
0.40
0.30
0.20
0.15
0.10
0 20 40 60 80 100 120 140
5A.2. VOLUMETRIC MOUNTING DISTANCES
A
A B
ØD
KODSANreservestherighttochangeproductspecications,technicalmeasurementsandinformationandinstallationschemeswithoutnotice.Anyinformationgiveninthispagecan
not be copied and used without the permission of KODSAN. Kodsan can not be held responsible in any way by showing examples of technical information and schematics.
KODSANreservestherighttochangeproductspecications,technicalmeasurementsandinformationandinstallationschemeswithoutnotice.Anyinformationgiveninthispagecan
not be copied and used without the permission of KODSAN. Kodsan can not be held responsible in any way by showing examples of technical information and schematics.