HWA1-A & HWA1-H
Air/Water chillers and heat pumps with axial fans
34
19
CORRECTION FACTORS FOR USE OF GLYCOL
Glycol rate Freezing point (°C)
CCF
IPCF
WFCF PDCF
10
%
-3,2
0,985
1
1,02
1,08
20
%
-7,8
0,98
0,99
1,05
1,12
30
%
-14,1
0,97
0,98
1,10
1,22
40
%
-22,3
0,965
0,97
1,14
1,25
50
%
-33,8
0,955 0,965
1,2
1,33
CCF: Capacity correction factor
IPCF: Power input correction factor
WFCF: Water flow rate correction factor
PDCF: Pressure drops correction factor.
The water flow rate and pressure drop correction factors are to be applied directly to the values given for operation without
glycol. The water flow rate correction factor is calculated in order to get the same temperature’s difference that would be
obtained without glycol. The pressure drops’ correction factor takes into account the different water flow rate obtained from the
application of the water flow rate correction factor.
20
CONTROL LOGICS
For the control logics see the supplied control manual of the unit.
21
HANDBOOK FOR SOME CONFIGURATIONS OF INSTALLATION
For more information about some possible configurations, contact our office and ask for the handbook which collects a series of
recommended drawings of plants that have been highlighted regarding the installation configuration of our high efficiency heat
pumps. The "Handbook" shows also the symbiotic potential with some of our products in the catalogue.
