Riello CSV 25 R User manual

cod. 20024195 rev. 8 02/2016
Solar collectors
CSV 25 R CSV 35 R
EN INSTALLATION INSTRUCTIONS

2
CONFORMITY
MODEL CODE
CSV 25 R 20023353
CSV 35 R 20023416
Kit of 5 collectors CSV 25 R 20023354
Kit of 5 collectors CSV 35 R 20023417
RANGE
CSV R solar collectors conform to EN 12975 standard
and to Solar Keymark certification standard.

3
Dear Customer,
We thank you for playing your part in saving the environment and for choosing a top quality solar
collector. You have purchased a modern product that is easy to install and use, and is designed to
give you dependable and safe energy savings for many years to come. You can keep your new solar
collector in peak condition by having it serviced regularly by an authorised Technical Assistance
Centre r.
This instruction manual contains important instructions and precautions that must be observed to
ensure the trouble-free installation and efficient functioning of your solar collector.
Please accept our thanks and our congratulations on your choice of product.
RIELLO S.p.A.

CONTENTS
4
CONTENTS
The following symbols are used in this manual:
b CAUTION! = Indicates actions that require
caution and adequate preparation.
a STOP! = Identifies actions that you MUST NOT do.
This manual, Code 20024195 - Rev. 8(02/16) is made up
of 20 pages.
GENERAL
General safety information and precautions page 5
Description of the solar collector “ 6
Identification “ 6
Design “ 7
Technical specifications “ 8
Accessories “ 9
Collectors connection “ 9
Water circuit “ 10
Location of probes “ 11
FOR THE INSTALLER
Unpacking the collector page 12
Dimensions and weight “ 13
Handling the collector “ 14
Installation “ 14
Filling the circuit “ 16
Controls “ 17
TECHNICAL ASSISTANCE CENTRE
Maintenance page 18

GENERAL
5
GENERAL SAFETY INFORMATION AND PRECAUTIONS
b As soon as you open the packaging, check imme-
diately that the contents are all present and undam-
aged. Contact the reseller from whom you pur-
chased the solar collector if you notice any prob-
lems.
b This solar collector must be used only for the proper
purpose for which it is designed and made.
The manufacturer declines all responsibility, con-
tractual or other, for damage to property or injury to
persons or animals caused by improper installation,
adjustment, maintenance or use.
b The solar collector must be serviced every six months.
b Work near uncovered and live electrical wires, with
which it is possible to come into contact, is only
permitted under the following conditions:
- wires must be free from voltage for the entire
duration of the work
- parts remaining live must be covered or accidental
contact prevented
- the following minimum safety distances must be
respected:
1 m for voltages of up to 1000 Volts
3 m for voltages from 1000 to 11000 Volts
4 m for voltages from 11000 to 22000 Volts
5 m for voltages from 22000 to 38000 Volts
over 5 m if the voltage is not known.
Contact with open, live electrical wires may lead to
electrocution and may even be fatal.
b Always wear safety goggles when drilling. Always
wear safety shoes, cut-proof protective gloves and
a safety helmet when performing installation work.
b Before beginning installation work on roofs, install
the necessary fall prevention and fall arrest devices
and ensure that all applicable safety standards are
applied.
Use only tools and materials that conform to the
safety standards that are applicable in the place of
work.
b Only wear overalls that have a safety harness (with a
suitable safety or fall-arrest belt, ropes or slings, fall
dampers or dissipaters). In the absence of adequate
fall prevention and security devices, failure to use a
proper safety harness may lead to falls from great
heights with serious or even fatal consequences.
b The use of ladders leaned against walls can lead to
serious falls if the ladder slips, slides of falls.
When using ladders, always ensure that they are
stable, and that suitable ladder stops are present.
If possible secure the ladder with hooks. Make sure
that there are no live electrical wires near the ladder.
b Especially when installing the solar collector as part
of a domestic hot water system, follow the orienta-
tion and angle of the roof to ensure that the collector
blends in with the architecture of the building.
b This instruction manual is an integral part of the solar
collector. It must be kept safe and must ALWAYS
accompany the solar collector, even if it is sold to
another owner or transferred to another user or to
another installation. If you lose this manual, order a
replacement immediately from your local Technical
Assistance Centre.

GENERAL
6
DESCRIPTION OF THE SOLAR COLLECTOR
The solar collectors are identified by two plates:
CSV R collectors are made up of 14 or 20 double sleeve
evacuated glass tubes, each of which contains a "U"
shaped copper pipe. These copper pipes are connected
in parallel and filled with heat transfer fluid that descends
and rises to absorb the heat generated by solar radiation,
direct and reflected by a mirror known as a compound
parabolic concentrator. There is a vacuum inside the
double sleeved glass tubes. This provides effective ther-
mal insulation (on the same principle as a vacuum flask)
and permits the collectors to generate heat from the sun
even in bad weather and in the winter. The outside of the
internal pipes is finished in a selective absorbent coating.
The main characteristics of the CSV R collector are as
follows:
- Evacuated tube technology for high temperatures and
high efficiency even in bad weather.
- Circular absorbers and CPC mirrors for maximum
absorption even in oblique light.
- Long working life, with no metal parts passing through
the glass tubes to cause loss of vacuum.
- Constant absorption over time, thanks to a selective
coating that is well protected inside the vacuum envi-
ronment.
- Easy replacement of glass tubes without having to
empty the solar heating circuit.
- Elegant design.
b If these plates or any other means of clearly identifying the product are defaced, removed or lost, proper installa-
tion and servicing may be rendered difficult.
IDENTIFICATION
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
Certif. 062BN/0
10000001 BAR CODE 128B
Anno di produzione
SERIALE PROGRESSIVO
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
Certif. 062BN/0
10000001 BAR CODE 128B
Anno di produzione
SERIALE PROGRESSIVO
Data plate
This lists the technical specifications and performance of the product.
Serial number plate
This bears the collector’s code number, model and serial number.
Code
Year of production
Serial Number
Description
Made in Italy
by Riello S.p.A.
Evacuated
solar collector
Dimensions
Gross area
Aperture area
Absorber area
Empty weight
RIELLO S.p.A.
Via Ing. Pilade Riello, 7 - 37045 Legnago (VR) - ITALIA
Serial number
Model
Code
Max. operating pressure
Stagnation temperature
Liquid content
Heat transfer fluid:
GLYCOL PREMIX (Water
+ Glycol, max concentra-
tion 50%)
GLYCOL-FREE FLUID
(Water + Non-toxic rust
inhibitors + Potassium
Formate, max concentra-
tion 50%)

GENERAL
7
DESIGN
Aluminium absorber
Insulation
Top pipe
Bottom pipe
Collector
return
Collector
outlet
Collector
probe socket
Glass
Vacuum
Absorbent
coating
Support frame
Direction of flow
Reflective
mirror
Collector
foot
Evacuated
tube Seal
Top
cover
plat
CSV 25 R

GENERAL
8
TECHNICAL SPECIFICATIONS
DESCRIPTION CSV 25 R CSV 35 R
Total area 2,77 3,91 m2
Exposed area 2,40 3,43 m2
Effective absorption area 2,69 3,84 m2
Connections threaded on Ø 18 pipes mm
Empty weight 52 74 kg
Liquid content 2,05 2,9 l
Recommended flow rate per m2of panel 30 l/(m2h)
Absorption (α)> 94 %
Emissions (ε)< 7 %
Maximum permitted pressure 10 bar
Stagnation temperature 268 °C
Maximum number of collectors connectable in
series 6 n°
b Minimum recommended slope is 15° (to ensure efficient self-cleaning and minimise snow pressure).
Installations in locations liable to frequent snow and hail, and installations on flat roofs in locations subject to strong
winds are not recommended (see the "Static load" section on page 14).
COLLECTOR WIND AND SNOW LOADING CHART
(CALCULATED FOR STANDARD, ZONE 1 WIND LOADS AND SNOW LOADS)
Installation
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°
CSV 25 R
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
1,0
0,8
0,6
0,4
0,2
00 0,02 0,04 0,06 0,08 0,10
Tm* [m2KW-1]
Efficiency curve referred to exposed area
Description Absorber
surface area
Open
surface area U/M
Optical efficiency (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 -
Efficiency (ηcol) (**) 64 %
(*) Tested according to EN 12975, referred to a 33.3%
water-glycol mix, flow rate of 170 l/h (CSV 25 R) -
240 l/h (CSV 35 R), 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
between the solar collector and the surrounding
air, and with total solar radiation of 1000 W/m2
referred to the exposed area.
Efficiency parameters

GENERAL
9
COLLECTORS CONNECTION
The diagram below illustrates the connections between solar collectors in lines.
The fittings are available as accessories to be ordered separately.
The collectors in a line are connected so that the heat transfer fluid goes through them in series.
It is also possible to connect more then one line of solar collectors both in series (max 6 collectors in series) or in paral-
lel. Anyway the circuit must be hydraulically balanced (see the following schemes as an example).
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
T T
Two lines in series Two lines in parallel
b These specifications are purely indicative. The entire structure must be inspected by an expert in static loading in
compliance with applicable standards.
Installation
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°
CSV 35 R
0-10 low 90 80 100 599 771
10-20 low 110 100 250 841 1093
0-10 medium 110 100 100 561 720
10-20 medium 130 120 250 753 976

GENERAL
10
WATER CIRCUIT
The diagram below illustrates the water connections between solar collectors and a storage cylinder.
3
11
RM
°C
M
4
4
4
9
8
11
17
10
13
14
2
6
12
Gruppo idraulico
5
7
15
16
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 - Heat transfer fluid 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 tempera-
tures (180°C).
Water system
Diameter of connection pipes for a specific flow 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"
Pressure drop in solar collectors
Pressure drop (mbar)
Flow rate (l/h)
700
800
900
600
500
400
300
200
100
0
0 1000 2000 3000 4000 5000 6000
CSV 25 R
CSV 35 R

GENERAL
11
LOCATION OF PROBES
3
11
°C
M
4
4
4
9
8
11
10
13
14
2
6
12
Gruppo idraulico
REGOLATORE
SOLARE
17
7
5
15
16
18
19
RM
The temperature sensor must be installed in a socket as near as possible to the collector outlet. Make sure that the sen-
sor makes good contact with the socket. Materials (sensor, cables, seals and insulation) used to install the temperature
sensor must be able to withstand high temperatures (up to 300°C).
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 probe
18 - Storage cylinder top probe
19 - Heat transfer fluid recovery
M-Collector outlet
R- Collector return
Water system
SOLAR
REGULATOR

FOR THE INSTALLER
12
The solar collectors are packed in various ways depend-
ing on the number of units supplied.
A - Individually packaged collectors
Pallet contents:
- collector
- Documentation envelope containing:
- certificate of warranty and label with bar code.
B - Packages of 5 collectors
Pallet contents:
- 5 collectors
- Documentation envelope containing:
- certificate 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
operation 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 solar
connector. Once located, read it thoroughly and
keep it safe.
UNPACKING THE COLLECTOR

FOR THE INSTALLER
13
1600 145
68
1552
110x14
110x20
65
1730
1700
2260 145
68
2212
1730
1700
65
CSV 25 R
CSV 35 R
CSV 25 R CSV 35 R
Net weight 52 74 kg
DIMENSIONS AND WEIGHT

FOR THE INSTALLER
14
Assembly
The solar collector must be fitted by specialist personnel.
Use only the assembly material supplied with the solar
collector. The supporting framework and all masonry or
brickwork fixing points must be checked by a person
expert in static loading, and must be suitable for the
nature of the installation site.
Static load
The solar collector must only be installed on roofs or
frames that are strong enough to support its weight. The
strength of the roof or frame must be verified on site by a
person expert in static loading before the solar collector
is installed. During this process, it is important to verify
the suitability of the supporting frame to hold the screw
fasteners that fix the solar collector in place. An expert in
static loading must verify that the entire frame complies
with relevant standards, especially in areas liable to snow
and areas exposed to high winds. Conditions (gusts of
wind, formation of wind vortices, etc.) at the point where
the solar collector is to be installed must be carefully con-
sidered since these can increase the loads on the sup-
porting structure. Allow for a maximum permissible total
load on each collector of 850 Pa (possible in the event of
a peak wind speed of 130 km/h).
GENERAL INSTRUCTIONS
A
A
A
A
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 Never lift the collector by its threaded water fit-
tings.
b Wear suitable personal protective equipment and
use suitable safety devices.
a Do not dispose of the packaging material into the
environment where it can become a potential haz-
ard. Dispose of the packaging material in compli-
ance with applicable legislation.
INSTALLATION
Lightning protection
The metal piping of the solar heating circuit must be con-
nected to the main potential compensation bar by a (yel-
low-green) copper wire (H07 V-U or R) of at least 16 mm2.
If a lightning conductor system is already installed, the
solar collectors may be connected to the existing system.
Alternatively, the solar collector piping may be connected
to ground via a ground wire sunk into the earth. Ground
wires must be sunk outside the house. The ground wire
must be connected to the potential compensation bar
through a wire of the same diameter.
Connections
Solar collectors must be connected in series using the
threaded unions provided.
If flexible pipes are not used to connect the solar col-
lectors, the piping must be fitted with expansion joints
(U-type expansion joints, flexible hoses) to absorb ther-
mal expansion. Provided adequate expansion joints
are used, up to 6 solar collectors may be connected in
series. Make sure that the unions are located correctly
when tightening them. When tightening a union with a
pipe wrench or spanner, always hold the opposite union
steady with a second tool to avoid twisting the pipe to
which the union is attached.
HANDLING THE COLLECTOR

FOR THE INSTALLER
15
bAll pipes in the water circuit must be insulated in
conformity to relevant standards. Lagging and insu-
lation must be protected against damage by the
weather and birds and animals.
Angle of collectors / General
Solar collectors are designed to be installed at angles of
between 15° (minimum) and 75° (maximum).
Make sure that the bleed and vent valves of the collectors
remain open while the collectors are being installed.
Take care to protect all fittings, connections, bleed and
vent valves against dirt and dust etc..
In installations which serve primarily to produce domestic
hot water in the summer, install the collectors facing from
east to west at an angle of between 20 and 60°. The ideal
orientation is southwards, at an angle equal to the latitude
of the location minus 10°.
If the system sustains the greatest thermal load in the
winter (as in systems that combine domestic hot water
production with central heating), install the collectors
facing south (or south-east or south-west) at an angle
greater than 35°. The ideal orientation is southwards, at
an angle equal to the latitude of the location plus 10°.
Flushing and filling
For safety reasons, the solar collector must be covered,
using the packaging it came in, for at least two hours
before it can be filled.
In areas liable to frost, fill the collector with an anti-freeze
heat transfer fluid.
b DO NOT ADD WATER TO THE GLYCOL PREMIX.
The anti-freeze supplied for use with solar collectors
comes ready to use. IT MUST NOT BE MIXED WITH
WATER.
b Take care if you flush the system out, because water
trapped inside the circuit before filling with glycol
premix may freeze.
Bleeding
Bleed the circuit:
- On startup (after initial filling) (see the figure on page
16).
- Whenever necessary, as in the event of system mal-
functioning.
Make quite sure that all air has been bled out of the sys-
tem.
b Risk of burns from hot fluid inside the collectors!
b Only open the vent valve if the temperature of the
fluid in the circuit is below 60°C.
Make sure that the collectors are not hot before you
start bleeding the circuit. Always cover the solar
collectors before bleeding the circuit. Always per-
form bleeding in the morning.
Checking the heat transfer liquid
Check the anti-freeze effect and the pH level of the heat
transfer liquid every 2 years.
- Use an instrument like a refractometer or densimeter
to check the anti-freeze effect: if the fluid’s density dif-
fers from that declared in the manufacturer’s technical
specifications, replace the anti-freeze fluid.
- Check the pH of the anti-freeze fluid using litmus
paper: if measured pH differs from that specified in
the manufacturer’s technical specifications, replace the
anti-freeze fluid.
bAt the end of its useful life, dispose of the product in
compliance with applicable legislation.

FOR THE INSTALLER
16
Perform the following steps before starting up the system.
1 - FLUSHING AND SEAL TESTING THE SYSTEM
If copper piping has been used and joints have been hot brazed, flush out the system to remove any brazing residues.
Seal test the system after you have flushed it out.
b Fill the solar collector with anti-freeze heat transfer liquid immediately after flushing it out, because flushing water
may remain trapped in the circuit (with a consequent risk of freezing).
b The anti-freeze fluids supplied as accessories have been specially formulated for use in solar applications, and
maintain their characteristics for their entire working life.
The mix is also non-toxic, biodegradable and biocompatible.
b Do NOT part fill the circuit with anti-freeze then top up with water.
b Temperatures in excess of the specified working temperature can cause the anti-freeze to break down. This is eas-
ily visible because the liquid becomes darker.
2 - FILLING
1 - Open the non-return valve (A).
2 - Open the air vent at the highest point in the system
(see figure alongside) and keep it open throughout
the filling operation.
3 - Open the vent valve (7).
4 - Pump the heat transfer fluid around the circuit with an
external filling pump until all air bubbles have been
eliminated. Close the manual bleed valve.
5 - Temporarily raise the pressure in the system to 4 bar.
6 - Start up the system for about 20 minutes.
7 - Bleed the system again from step 2 until all the air has
been removed.
8 - Set the circuit pressure at the boiler according to the
table below in order to ensure a minimum pressure of
1.5 bar at the height of the collector field.
9 - Close the non-return valve (A) and any open vent
valves to prevent the heat transfer fluid from evaporat-
ing.
FILLING THE CIRCUIT
°C
M
A
RM
7
Manual bleed
valve (accessory)
Anti-freeze mix
Heat exchanger
of solar storage
cylinder
Solar collectors
Heat
transfer fluid
filling pump
Water control system
H
HPressure at boiler
up to 15 m 3 bar
15 - 20 m 3.5 bar
20 - 25 m 4 bar
25 - 30 m 4.5 bar
General rule: p [bar] = 1.5 + H [m] / 10

FOR THE INSTALLER
17
On completion of the installation, perform the checks listed in the table below.
DESCRIPTION OK
Collector circuit
Cold circuit pressure ____ bar (see page 16)
Collector circuit seal test
Safety valve check
Anti-freeze checked to - ____ °C
pH of heat transfer fluid = ____
Collector circuit bled
Flow rate of 30l/h per m2checked
Non-return valve functioning
DESCRIPTION OK
Solar collectors
Visual check of collectors
Collectors cleaned if necessary
Visual check of collector fixing points
Visual check of roof impermeability
Visual check of insulation/lagging
CONTROLS
b Do not fill the system in bright, sunny conditions or
if the collectors are hot. Cover the solar collector
with the packaging it came in for at least two hours
before filling it.
b Make sure that you have bled all the air out of the
system, using the water control system vent too.
Heat transfer fluid filling pump (accessory). A man-
ual bleed valve is not required if this pump is used.

TECHNICAL ASSISTANCE CENTRE
18
MAINTENANCE
The collector must be cleaned and all parts (reflector, glass tubes, etc.) inspected every six months.
REPLACING EVACUATED TUBES
The evacuated tubes are fully functional when delivered. Nevertheless, if problems occur, they can be replaced quickly
and easily.
Defective tubes are easy to recognise because their undersides turn white and their surfaces become extremely
hot.
Proceed as follows to remove an evacuated tube. Wear
gloves and take all the necessary precautions.
- Smear the top of the tube (1) near the seal ring with a
lubricant paste
- Unscrew and remove the plug (2) from the foot of the
tube
- Pull the tube (3) downwards, twisting it gently to release
it from the top seal
- Remove the tube from the bottom of the collector
If you do not have sufficient room to remove the tube
downwards, proceed as follows.
- Remove the tube from the collector foot as instructed
above
- Pull the tube down about 20 cm
- Hold the tube in a glove, lift it gently and swivel it to
the left or right. This bends the copper pipes inside the
glass tube. Take care not to damage them, however
- Pull the tube out diagonally across the collector to
remove it.
Reverse the above steps to fit the new tube.
b Remove any pieces of broken glass without dam-
aging the surface of the mirror. Also remove any
residues that might have formed around the copper
pipes.
b Make sure that the silicon seal ring is still correctly
seated.silicone.
1
3
2
A

TECHNICAL ASSISTANCE CENTRE
19
REPLACING THE CPC REFLECTOR
Our CPC reflectors are manufactured and delivered under the best possible conditions.
Nevertheless, if a fault (e.g. a large dent) is found, they can be replaced quickly and easily.
Proceed as follows, taking all the necessary precautions,
to remove a damaged reflector:
- Unscrew and remove the plug (1) from the foot of the
collector.
- Remove the bracket (2) into which the plug was
screwed by bending back the clips (3).
- Remove the reflector (4) without moving its glass tube.
14
2
3
4

RIELLO S.p.A.
37045 Legnago (VR)
Tel. [phone] - Fax [phone] - www.riello.it
As part of the company’s ongoing commitment to perfecting its range of products, the appearance, dimensions, technical data,
equipment and accessories may be subject to variation.
Cod. 20024195