Thermodynamic Performance Of External Unit In Heating/Cooling Mode - Elco Aerotop Split M-Rx Guide D'installation

System description

Thermodynamic performance of External unit in heating/cooling mode

Restrictions of cooling operation
A
25
(10 ; 23)
20
UF UF
15
10
FC FC
5
(10 ; 5)
0
0 5 10 15
External air temperature (°C)
AVAILABLE PRESSURE
Pressure available for distribution on the installation.
800
700
600
500
400
300
200
100
0
0 500
Available pressure for sizes: 04M-RX - 05M-RX - 07M-RX - 07M-R
System Size
04X
05X
07X - 07
09
11
Available pressure
The curves indicated above show the available pressure of internal units.
In order to have a correct sizing of the system, the pressure drop curve of the entire circuit (in function of the nominal fl ow rate)
must stay below the available pressure curve everywhere. Pressure drop values depend on the specifi c installation.
You can install a supplementary circulation pump if the module's own unit is not powerful enough. For the electrical hookup,
refer to «Electrical circuit».
Warning: in case of installation of thermostatic valves on all terminals or zone valves, install a bypass to ensure the minimum
operating fl ow rate.
62 / GB
(43 ; 23)
(43 ; 5)
20 25 30 35 40 45
y
1000 1500
l\h
Flowmeter OFF
Threshold [l/h]
280
350
490
630
770
Restrictions of heating operation
A
-20,45
-20,20
B
50 -30 -20
800
700
600
500
400
300
200
100
0
2000
0
Available pressure for sizes: 09M-R - 11M-R
Flowmeter ON Nominal fl ow rate
Threshold [l/h]
360
450
630
810
990
70
-10,60
60
50
40
30
20
15,20
10
0
-10 0 10 20
External air temperature (°C)
500 1000 1500
l\h
Available pressure
[l/h]
640
800
1120
1440
1755
35,60
35,33
B
30 40
2000 2500
[mbar]
610
560
450
630
500