Beretta SCV-25 User manual

Installation Manual
Solar | Solar collector
SCV-25
Installation Manual
EN

This manual, Code 20026429 - Rev. 10 (10/18) comprises 16 pages.
2
CONFORMITY
Solar collectors conform to EN 12975 standard and to Solar Keymark certication standard.
Range
MODEL CODE
SCV-25 20026324
RANGE
Contents
CONTENTS
The following symbols are used in this manual:
b
CAUTION! = Identies actions that require caution
and adequate preparation.
a
STOP! = Identies actions that you MUST NOT do.
Thismanual,Code
-Rev.
comprises
pages.
GENERAL INFORMATION . . . . . . . . . . . . . . . . . . . . . 3
System layout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Identication. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Technical specications. . . . . . . . . . . . . . . . . . . . . . . . . . 5
Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Water circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Unpacking the product . . . . . . . . . . . . . . . . . . . . . . . . . 10
Handling. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Filling the circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Checks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
COMMISSIONING AND MAINTENANCE . . . . . . . . . 14
Maintenance. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

3
GENERAL INFORMATION
System layout
SYSTEM LAYOUT
Collector
probe socket
P1
H3
Collector
return Collector outlet
P2
H2
L1
L2
H1
L3
Seal
Insulation
Bottom pipe
Glass
Vacuum
Absorbent
coating
Collector
foot
Support frame
Direction of flow
Evacuated
tube
Aluminium absorber
Top
cover plat
Top pipe
Reflective
mirror
Description H1 H2 H3 L1 L2 L3 P1 P2 U/M
SCV-25
1730 65 1700 1600 1552 110X14 68 145 mm
Generalinformation

GENERAL INFORMATION
4
Identication
Matricola
Modello
Codice
CODICE : 20025360
FABBRICATO IN ITALIA
DESCRIZIONE : CTE25V
S/N :
COLLETTORE SOLARE SOTTOVUOTO
DIMENSIONI: 1600X1730X145 mm
SUPERFICIE LORDA: 2,77 m
2
TEMPERATURA DI STAGNAZIONE: 268°C
SUPERFICIE DI APERTURA: 2,40 m
2
CONTENUTO LIQUIDO: 2,05 l
SUPERFICIE ASSORBITORE : 2,69 m
2
PESO A VUOTO: 52 kg
LIQUIDO TERMOVETTORE:
GLICOLE PREMIX (Acqua + Glicole, max concentrazione 50%)
FLUIDO NON GLICOLICO (Acqua + Inibitori di corrosione
atossici + Potassio Formiato, max concentrazione 50%)
MAX PRESSIONE ESERCIZIO: 10 bar
da Riello S.p.A.
CEN 025
20022981_E4
EN 12975
10000001 BAR CODE 128B
Anno di produzione
SERIALE PROGRESSIVO
FABBRICATO IN ITALIA
DESCRIZIONE : CP25TVA
S/N :
COLLETTORE SOLARE PIANO
DIMENSIONI: 2046X1187X90 mm
SUPERFICIE LORDA: 2,43 m
2
TEMPERATURA DI STAGNAZIONE: 201 °C
SUPERFICIE DI APERTURA: 2,20 m
2
CONTENUTO LIQUIDO: 1,6 l
SUPERFICIE ASSORBITORE: 2,15 m
2
PESO A VUOTO: 36,5 kg LIQUIDO TERMOVETTORE:
ACQUA+GLICOLE PROPILENICO
MAX CONCENTRAZIONE GLICOLE: 50%
MAX PRESSIONE ESERCIZIO: 10 bar
da Riello S.p.A.
20038498_E1
EN 12975
Certif. 011-7S1766 F
12000025 BAR CODE 128B
Anno di produzione
CODICE : 20038250
Data plate
Serial number plate
Code
Year of production
Serial Number
Description
by Riello S.p.A.
Made in Italy
Flat plate
solar collector
Dimensions
Gross area
Aperture area
Absorber area
Empty weight
Maximum operating pressure
Stagnation temperature
Liquid content
Max glycol concentration
Heat transfer fluid:
water+propylene glycol
b
If these plates or any other means of clearly identifying the product are defaced, removed or lost, proper installation
and servicing may be rendered difcult.
IDENTIFICATION

GENERAL INFORMATION
5
Technical specications
DESCRIPTION SCV-25
Total area 2,77 m2
Exposed area 2,40 m2
Effective absorption area 2,69 m2
Water connections threaded on Ø 18 pipes mm
Empty weight 52 kg
Liquid content 2,05 l
Recommended ow rate per m2of panel 30 l/(h x m2)
Absorption (α)> 94 %
Emissions (ε)< 7 %
Maximum permitted pressure 10 bar
Stagnation temperature 268 °C
Maximum number of collectors connectable in series 6 n°
Efciency parameters
Description Absorber surface
area Open surface area U/M
Optical efciency (ηο) (*) 0,627 0,70 -
Thermal dispersion factor (a1) (*) 1,027 1,15 W/(m2K)
Thermal dispersion temperature dependence factor
(a2) (*) 0,010 0,011 W/(m2K2)
Description U/M
IAM T (50°) (*) 1,07 -
IAM L (50°) (*) 0,954 -
Efciency (ηcol) (**) 64 %
(*) Tested according to EN 12975, referred to a 33.3%
water-glycol mix, ow rate of 170 l/h and irradiation G
= 800W/m2.
Tm = (Coll._inlet _temp.+Coll._outlet_temp.)/2
T*m = (Tm-T_ambient)/G
(**) Calculated with a temperature difference of 40K be-
tween the solar collector and the surrounding air, and
with total solar radiation of 1000 W/m2referred to the
exposed area.
Efciency curve referred to exposed area
1,0
0,8
0,6
0,4
0,2
00 0,02 0,04 0,06 0,08
0,10
Tm* [m
2
KW
-1
]
b
Minimum recommended slope is 15° (to ensure efcient self-cleaning and minimise snow pressure).
Installations in locations liable to frequent snow and hail, and installations on at roofs in locations subject to strong
winds are not recommended (see "Static load" on page 11).
TECHNICAL SPECIFICATIONS

GENERAL INFORMATION
6
COLLECTOR WIND AND SNOW LOADING CHART
(Calculated for standard, zone 1 wind loads and snow loads)
Installa-
tion height
above
ground (m)
Site’s wind
exposure
Mass in kg to secure
collector against lifting by
wind Altitude
(m.a.s.l.)
Total load on roof from
wind and snow loads and
collector weight (kg)
At angle of
45 °
At angle of
20 °
At angle of
45 °
At angle of
20 °
SCV-25
0-10 low 60 40 100 424 546
10-20 low 80 50 250 595 773
0-10 medium 80 70 100 396 510
10-20 medium 90 80 250 533 691
b
These specications are purely indicative. The entire structure must be inspected by an expert in static loading in
compliance with applicable standards.

GENERAL INFORMATION
7
Connections
The diagram below illustrates the connections between solar collectors in lines.
The ttings are available as accessories to be ordered separately.
collector
temperature sensor
to heat
exchange circuit
from heat
exchange circuit
union
olive
olive
ring nut
ring nut
union
olive
olive
ring nut
union
olive
olive
ring nut
stub pipe
stub pipe stub pipe
Collectors in the same line must be connected so that the heat transfer uid ows through them in series.
Lines of solar collectors can be connected either in series (provided each line contains no more than 6 collectors) or in
parallel. The complete circuit must always be hydraulically balanced. See the following sample layouts.
Two lines in series Two lines in parallel
T T
CONNECTIONS

GENERAL INFORMATION
8
Water circuit
3
11
°C
M
4
4
4
9
8
11
10
13
14
2
6
12
Valve group
SOLAR
CONTROLLER
17
7
5
15
16
18
19
R M
1 Solar collector
2 Storage cylinder
3 Collector probe
4 Disconnect valves
5 Non-return valve
6 Temperature gauge
7 Vent valve
8 Safety valve
9 Pressure gauge
10 Drain
11 Expansion vessel
12 Pump
13 Flow regulator
14 Flow meter
15 Vent cock
16 Manual bleed valve (accessory)
17 Storage cylinder bottom temperature sensor
18 Storage cylinder top temperature sensor
19 Heat transfer uid recovery
M Collector outlet
R Collector return
b
Connect no more than 6 collectors in series.
b
We recommend the use of stainless steel pipes spe-
cially made for solar collectors for the outlet, return
and probe pipes. The probe cable should be of the
shielded type.
b
Do not use plastic or multistrate pipes. Operating
temperature can exceed 180°C.
b
Pipe lagging must be able to resist high temperatures
(180°C).
WATER CIRCUIT

GENERAL INFORMATION
9
Pressure drop in solar collectors
PRESSURE DROP (mbar)
700
800
900
600
500
400
300
200
100
0
0 500 1000 1500 2000 2500 3000
FLOW RATE (l/h)
Diameter of connection pipes for a specic ow rate of 30 lt/m2h
Total surface area (m2) 2 - 4 6 - 12 14 - 20
Diameter of copper pipe
(mm) 10 - 12 14 18
Diameter of steel pipe (inch) 3/8" - 1/2" 1/2" 3/4"

10
INSTALLATION
Unpacking the product
UNPACKING THE PRODUCT
The solar collectors are packed in various ways depending
on the number of units supplied:
A In a pack of 1
B
Packages of 5 collectors
Pallet contents:
- collector
- documentation envelope containing certicate of
warranty and label with bar code.
b
Keep the front of the packaging and use it to shade
the glass tubes before the system is started up.
If the solar collectors are not going to be put into oper-
ation immediately, and there is any risk of their being
exposed to rain, do not use the packaging to shade
them as it is not water-proof.
b
The instruction manual is an integral part of the so-
lar connector. Once located, read it thoroughly and
keep it safe.
A
B
Handling
Once you have removed the outer packaging, proceed as
follows to unpack and handle the solar collector:
- Remove the PVC wrapping to free the solar collector
from the pallet
- Tilt the solar collector slightly and grip it at the four
points shown (A) to lift it.
- Use a hoist or other suitable lifting equipment to hoist
the solar collector on to the roof.
b
Wear suitable personal protective equipment and
use suitable safety devices.
a
Do not dispose of packaging material into the envi-
ronment, or leave it within the reach of children, since
it can become a potential hazard. Dispose of packag-
ing material in compliance with applicable legislation.
a
Do not lift the solar collector by its water ttings.
A
A
A
A
HANDLING
Installation