NA13.47 B
EN - 16
The table and the curves below indicate the minimum percentages of glycol with which the system must be provided depending
on the freezing point.
WARNING
: The glycol concentration must protect the fluid at least 6°C below the water outlet temperature specified for the
evaporator to allow correct setting of the minimum pressure controller at the evaporator
Glycol concentration required
Volume concentration in %
0
10
20
30
40
Ethylene glycol
Freezing point °C
0
-4
-10
-18
-27
Minimum water outlet °C
5
+3
-1
-7
-14
Propylene glycol
Freezing point °C
0
-4
-9
-16
-25
Minimum water outlet °C
5
+4
+1
-4
-9
Important
: The values are given for guidance only, according to the standard characteristics of the MEG. These may vary
depending on the MEG manufacturer, therefore it is important to refer to the manufacturer's data to ensure protection is provided
to the required temperature.
For a glycol concentration greater than 40%, a special pump must be used
-25
-30
-15
-20
-5
-10
0
60
20
40
50
10
30
-45
-50
-35
-40
0
1
2
3
4
Graph of minimum freezing temperatures and use
Minimum operating temperature
Freezing temperature
: monopropylene glycol
: monopropylene glycol
: monoethylene glycol
: monoethylene glycol
Volume concentration in %
Temperature (°C)
Summary of Contents for POWERCIAT2 LX
Page 1: ...POWERCIAT2 LX LXC AQUACIAT 2 Instruction manual 04 2014 N 13 47 B...
Page 2: ......
Page 39: ...EN EN 37 NA13 47 B...
Page 40: ...NA13 47 B EN 38...
Page 41: ......
