Description Of The Appliance; Identification (Fig. 1); System Layout (Fig. 2); Technical Specifications - Riello Collector 2.0 Installer Manual

3 DESCRIPTION OF THE APPLIANCE

The solar collectors are flat collectors that feature a harp with 12
8 mm copper pipes; these are welded with a laser welding on the
aluminum absorber (which has a thickness of 0.4 mm).
This type of collector allows you to maximize the transfer of heat
from the absorber to the hydraulic pipes and then to the fluid con-
tained in the panel.
The main technical elements of the solar collector design are:
− Aluminum absorbing plate (absorber) with TiNOX treatment.
− Hydraulic fittings with Ø 22.
− Glass with low iron content, tempered, prismatic, 3.2 mm
thick.
− Glass and frame are sealed using a polymeric materi-
al (Colofast®) which offers a perfect connection between
glass and steel, strength making the two elements perfectly
integral. It is also waterproof and offers a perfect finish.
− The insulation is in glass wool with a density of 40 kgr / m3
and a thickness of 30 mm.
− Easy and flexible installation on flat roofs and pitched roofs,
using the special brackets available as an accessory.

4 IDENTIFICATION (Fig. 1)

9
The labels affixed to the product are used to identify it during
installation and maintenance, make sure they are present and
not damaged.

5 SYSTEM LAYOUT (Fig. 2)

6 TECHNICAL SPECIFICATIONS

DESCRIPTION
Total area
Exposed area
Effective absorption area
Hydraulic connections
Empty weight
Liquid content
Recommended flow rate for each line per m
Recommended flow rate for each line per m
Maximum flow rate for each line per m
Minimum flow rate for each line per m
Glass thickness
Thickness of glass wool insulation
Absorption (α)
Emissivity (ε)
Maximum permitted pressure
Stagnation temperature
Maximum number of collectors in a line
Installation
Glass
(*) recommended flow rates in the hottest climatic bands
(**) recommended flow rates in the medium/cold climatic bands
Description
Maximum efficiency (ηο) (*)
Thermal dispersion factor (a1) (*)
Thermal dispersion temperature dependence factor (a2) (*)
(*) Value referred to the opening area. Test according to ISO
9806 referred to mix of water and 33.3% glycol, flow rate 160
l/h and direct exposure G = 800W/m
Tm = (Coll._inlet _temp.+Coll._outlet_temp.)/2
T*m = (Tm-T_ambient)/G
of collector (*)
2
of collector (0**)
2
of collector
2
of collector
2
Low Iron Prismatic Tempered
.
2
Collector 2.0
2,00
1,91
1,90
22
29,15
1,38
50
30
60
20
3,2
30
95
4
10
180
10 Vertical
Vertical
13 13
Collector 2.5
2,49
2,39
2,37
22
35,4
1,55
50
30
60
20
3,2
30
95
4
10
180
10 Vertical
Vertical
Low Iron Prismatic Tempered
Collector Collector
2.0 2.5
0,762 0,770
2,99 3,18
0,027 0,021
ENGLISH
m
2
m
2
m
2
Ø
kg
kg
l/(m h)
2
l/(m h)
2
l/(m h)
2
l/(m h)
2
mm
mm
%
%
bar
°C
n°
-
-
Units
-
W/(m K)
2
W/(m K )
2 2