Maximum System Water Volume (Option 293); Minimum & Maximum Chilled Water Flow Rate - Carrier AquaForce PUREtec 30KAV-ZE 350 Installation, Operation And Maintenance Instructions

4 - WATER CONNECTIONS
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
Static pressure
Pure water
10% EG
20% EG
30% EG
40% EG
EG: Ethylene glycol
30KAV-ZE/30KAVPZE 350-600
bar 1 2
l 3960 2640
l 2940 1960
l 2100 1400
l 1740 1160
l 1500 1000
4.12 - Minimum & Maximum chilled water flow
rate
The minimum chilled water flow is determined in order to allow
sufficient exchange and prevent the risk of excessive fouling.
30KAV-ZE /
30KAVPZE
350
400
450
500
550
600
2,5
650
1980
750
1470
800
1050
900
870
1000
750
1100
1200
1300
30KAVIZE
500
800
1100
1250
(1) Standard evaporator and heat-transfer medium = water
Minimum flow rate Maximum flow rate
(1)
(l/s)
7,4
8,1
8,9
9,7
10,8
12,0
13,4
14,6
16,1
19,1
21,0
22,8
25,0
27,5
Minimum flow rate (1) Maximum flow rate
(l/s)
10,8
16,1
22,8
27,5
(1)
(l/s)
46,4
50,2
56,1
60,6
67,5
76,1
85,4
95,5
106,1
120,8
136,1
146,4
159,7
159,7
(1)
(l/s)
67,5
106,1
146,4
159,7
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