4.11 - Maximum system water volume (option
293).
Units supplied with a hydraulic module may include an expansion
tank which limits the volume in the water loop.
The table below gives the maximum loop volume compatible with
the expansion vessel (for pure water or ethylene glycol depending
on the system's various concentrations and static pressures).
If this volume is less than the volume of the installed loop, then
it is necessary to add an additional expansion vessel within
the system.
30KAV-ZE / 30KAVPZE 30KAV-ZE/30KAVPZE 350A-600A
Static pressure bar 1 2 2,5
Pure water l 3960 2640 1980
10% EG l 2940 1960 1470
20% EG l 2100 1400 1050
30% EG l 1740 1160 870
40% EG l 1500 1000 750
EG: Ethylene glycol
4.12 - Minimum & Maximum chilled water ow
rate
The minimum chilled water ow is determined in order to allow
sucient exchange and prevent the risk of excessive fouling.
30KAV-ZE /
30KAVPZE
Minimum ow rate
(1)
(l/s)
Maximum ow rate
(1)
(l/s)
350A 7,4 46,4
400A 8,1 50,2
450A 8,9 56,1
500A 9,7 60,6
550A 10,8 67,5
600A 12,0 76,1
650A 13,4 85,4
750A 14,6 95,5
800A 16,1 106,1
900A 19,1 120,8
1000A 21,0 136,1
1100A 22,8 146,4
1200A 25,0 159,7
1300A 27,5 159,7
30KAVIZE
Minimum ow rate
(1)
(l/s)
Maximum ow rate
(1)
(l/s)
500 10,8 67,5
800 16,1 106,1
1100 22,8 146,4
1250 27,5 159,7
(1) Standard evaporator and heat-transfer medium = water
4 - WATER CONNECTIONS
29