US FLOOR / FLOOR
Minichiller inverter Duo
44
CHILLER/HEAT PUMP MODE
DOMESTIC HOT WATER MODE
25
CORRECTION FACTORS FOR OPERAZIONI WITH GLYCOL
The following correction factors are to be used only if the indoor unit is installed in any internal area of the building subject to low
temperatures and with the judgment of adding a certain quantity of glycol for protecting the hydraulic circuit.
Glycol %
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:
Input power correction factor.
WFCF:
Water flow 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 drop’s correction factor takes into account the different water flow rate obtained from the
application of the water flow rate correction factor.