Technical Data; Technical Data Table - Ferroli ECOTOP VMF Instrucciones De Montaje

ECOTOP VMF/VMFA/VRF/VRFA

TECHNICAL DATA

Technical Data Table

Model
Gross area
Opening area
Absorber area
Width
Height (H)
Depth
Number of connections
Size of connections
Optical effi ciency (ref. opening) VMF/VRF
Optical effi ciency (ref. opening) VMFA/VRFA
Heat transfer coeffi cient a 1 (ref. opening) VMF/VRF
Heat transfer coeffi cient a 1 (ref. opening) VMFA/VRFA
Heat transfer coeffi cient a 2 (ref. opening) VMF/VRF
Heat transfer coeffi cient a 2 (ref. opening) VMFA/VRFA
Weight
Water content
Max. operating pressure
Stagnation temperature VMF/VRF
Stagnation temperature VMFA/VRFA
Heat capacity (ref. opening) VMF/VRF
Heat capacity (ref. opening) VMFA/VRFA
Radiation angle correction factor K ө (50°) VMF/VRF
Radiation angle correction factor K ө (50°) VMFA/VRFA
Heat transfer fl uid fl ow rate
Heat transfer fl uid max. fl ow rate
Max. number of collectors in array
Absorber (VMF/VRF in copper - VMFA/VRFA in aluminium) with titanium oxide treatment
Degree of absorption
Emissivity
High-density rock wool insulation, thick.
Extra clear toughened prismatic glass, thick.
Transmittance
Pressure losses
Pressure loss for a collector for antifreeze mixture with heat transfer fluid temperature of 50°C.
100
Sizing of the pipe for connection of the collectors to the storage tank:
Collector area - m
2
Diameter of pipe / copper
Diameter of pipe / corrugated stainless steel pipe
Important: The table is only a guide. In case of additional resistances (curves, etc.) or pipes longer than 20 - 30 m,
a larger size should be chosen if necessary.
VMF/VMFA
VRF/VRFA
90
80
70
60
50
40
30
20
10
0
0 100 200 300
cod. 3541D350 - Rev. 03 - 11/2014
2.0 2.3 2.8
2
m 1.97 2.32 2.78
m 2 1.89 2.23 2.69
m 2 1.86 2.20 2.65
mm 1160 1160 1160
mm 1700 2000 2400
mm 80 80 80
no. 4 4 4
Ø 1" 1" 1"
Ø 3/4" 3/4" 3/4"
% 76.8 76.8 77.1
% 76 76 76.8
W/m 2 K 3.57 3.57 3.24
2
W/m K 3.656 3.656 3.591
2 2
W/m K 0.016 0.016 0.026
W/m 2 K 2 0.016 0.016 0.016
kg 35 41 49
L 1.4 1.5 1.6
bar 10 10 10
°C 177 177 214
°C 199.4 199.4 199.4
2
kJ/m K 8.038 5.435 9.541
kJ/m 2 K 6.07 6.07 5.69
0.896 0.89 0.897
0.87 0.87 0.87
l/h 100 100 100
l/h 250 250 250
no. 8 8 8
% 95 95 95
% 5 5 5
mm 40 40 40
mm 4 4 4
% 91.4 91.4 91.4
400 500 600 700
m (kg/h)
~ 4
10 - 12
DN 15
Collector size
1160
800 900 1000
~ 8 ~ 12
15 18
DN 20
EN
80
~ 24
22
41