Selection Of Expansion Vessel - Gree GRS-CQ8.0Pd/NaE-K Manual De Usuario

Air-to-water Heat Pump Split Versati

7.8 Selection of expansion vessel

Formula:
V--- Volume of expansion vessel
C--- Total water volume
P --- Pre-set pressure of expansion vessel
1
-- The highest pressure during running of the system (that is the action pressure of safety valve.)
P
2
e---The expansion factor of water (the difference between the expansion factor of the original water temperature
and that of highest water temperature.)
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Water expansion factor in different temperature
℃
Temperature( )
0
4
10
20
30
40
45
50
55
60
65
70
75
80
85
90
95
100
Expansion factor e
26
SPLIT TYPE
0.00013
0
0.00027
0.00177
0.00435
0.00782
0.0099
0.0121
0.0145
0.0171
0.0198
0.0227
0.0258
0.029
0.0324
0.0359
0.0396
0.0434