Riello 7000 Series User manual

cod. 068549EN rev. 8 06/2015
Solar storage tanks 7000
EN INSTALLATION INSTRUCTIONS

2
Riello 7000
Dear Installer,
Thank you for choosing a Riello 7000 solar storage tank.
You have purchased a modern, quality product that is
designed to give dependable and safe service and to
provide comfort for many years to come. Arrange for the
storage tank to be serviced regularly by an authorised
Riello Technical Assistance Centre. Their personnel are
specially trained to keep your storage tank efcient and
cheap to run. Technical Assistance Centres also stock any
original spare parts that might be required.
This instruction manual contains important instructions
and precautions that must be observed to ensure the
trouble-free installation and efcient functioning of your
Riello 7000 solar storage tank.
Please accept our renewed thanks for your purchase.
Riello
MODEL CODE
RIELLO 7000.1000/S 4383408
RIELLO 7000.1500/S 4383409
RIELLO 7000.2000/F 4383410
RIELLO 7000.3000/F 4383411
RIELLO 7000.5000/F 4383412
Contents
1 Safety precautions 3
2 General safety information 3
3 Product description 4
4 Identication 4
5 Design 5
6 Technical specications 6
7 Pressure drops 6
8 Dimensions and weight 7
9 Unpacking the product 8
10 Handling 9
11 Place of installation 9
12 Installation in older systems and systems requiring modernisation 9
13 Fitting the insulation 10
14 Preparing for initial start-up 11
15 Maintenance 11
16 Cleaning and removing internal components 11
The following symbols are used in this manual:
CAUTION! = Indicates actions that require caution and adequate preparation.
STOP! = Identies actions that you MUST NOT do.

3
Riello 7000
As soon as you open the packaging, check imme-
diately that the contents are all present and unda-
maged. Contact the Riello reseller from whom you
purchased the product if you notice any problems.
This Riello 7000 solar storage tank must be installed
by a qualied installer according to Law 46 of the 5th
March 1990. On completion of the installation, the
installer must issue the owner with a declaration of
conformity conrming that the installation has been
completed to the highest standards in compliance
with the instructions provided by Riello in this in-
struction manual, and that it conforms to all appli-
cable laws and standards.
This Riello 7000 solar storage tank must only be used
for the purpose specied by Riello and for which it
is designed. Riello 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.
If you notice any water leaking from the tank, di-
sconnect it immediately from the mains electricity
supply, shut off the water supply, and notify your
Riello Technical Assistance Centre or a qualied
technician immediately.
This storage tank must be serviced at least once a
year.
If the solar storage tank is not going to be used for
an extended period of time, prepare it for shutdown
as follows:
- Turn the system’s main power switch OFF.
- Drain the solar heating circuit, if connected, and
the heating system.
- Close the shut-off cocks for the water circuit.
- Shut down the boiler as instructed in its own ma-
nual.
If the storage tank is used as part of a solar heating
system, you will need to pre-mix separately purcha-
sed anti-freeze (propylene glycol) with water in a
percentage varying from 30% to 50% as instructed
in the relevant Riello installation and maintenance
manual.
Only ll the solar heating system with water and
glycol premixed in the percentages specied in the
Riello installation and maintenance manual.
This instruction manual is an integral part of the sto-
rage tank. It must be kept safe and must ALWAYS ac-
company the appliance, even if it is sold to another
owner or transferred to another user or to another
installation. If you damage or lose this manual, or-
der a replacement immediately from your local Riello
Technical Assistance Centre.
The operation of any appliance that uses electrical power
and water demands that a number of fundamental safety
precautions be respected. In particular:
Do not allow children or inrm persons to operate
the storage tank unsupervised.
Do not touch the storage tank when barefoot or wet.
Never clean or service the storage tank without rst
disconnecting it from the mains electricity supply by
turning the main power switch and the control panel
switch OFF.
Do not interfere with any control devices without
specic authorisation and instructions from the ma-
nufacturer.
Never pull, disconnect, or twist the electrical cables
coming from the appliance even if it is disconnected
from the mains electricity supply.
Do not expose the storage tank to the elements.
It is not designed for use outdoors.
Do not leave packaging material within the reach of
children, since it can become a potential hazard.
If the pressure in the solar heating circuit drops, do
not top up with water alone, since this increases the
risk of damage from freezing.
Do not use connections or safety devices or ttings
(expansion vessels, pipes, insulation) that are not
specically designed and tested for use in solar hea-
ting installations.
1 Safety precautions 2 General safety information

4
Riello 7000
Riello 7000 solar storage tanks are identied by three plates. (On models Riello 7000.2000/F - 3000/F - 5000/F these
must be applied by the installer after the insulation has been tted, see page 20).
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.
- Data plate
This lists the technical specications and performan-
ce of the product.
- Product identication plate
This bears the name of the product.
- Serial number plate
This species the serial number, model, consumption
and capacity.
Model
Code
Serial
number
Year of manufacture
SOLAR STORAGE CYLINDER
Storage cylinder capacity
Maximum absorbed power [Primary T = 80°C]
Specific flow rate [ΔT 35°C]
Maximum working pressure of coil
Maximum working temperature of coil
Maximum working pressure of cylinder
Maximum working temperature of cylinder
Heat loss
Electrical consumption
Power supply
l
kW
l/1'
bar
°C
bar
°C
kW/24h
W
V-Hz
Obligatory ground connection
Serial
number
Model Storage cylinder
capacity l
kW
Maximum
absorbed power
Model
Code
Serial
number
Year of manufacture
SOLAR STORAGE CYLINDER
Storage cylinder capacity
Maximum absorbed power [Primary T = 80°C]
Specific flow rate [ΔT 35°C]
Maximum working pressure of coil
Maximum working temperature of coil
Maximum working pressure of cylinder
Maximum working temperature of cylinder
Heat loss
Electrical consumption
Power supply
l
kW
l/1'
bar
°C
bar
°C
kW/24h
W
V-Hz
Obligatory ground connection
Serial
number
Model Storage cylinder
capacity l
kW
Maximum
absorbed power
ACCUMULO INERZIALE
Riello 7000 solar storage tanks are specically designed
for integration in central heating systems (not for DHW
use).
The most important technical features of these storage
tanks are:
- The tank and coils (Riello 7000.1000/S and 1500/S models
only) are specially designed and shaped for optimum
performance in terms of stratication, heat exchange
and replenishment times.
- Water ttings are available at different heights, permit-
ting different hot water generators to be used without
reducing the stratication effect.
- CFC-free polyurethane insulation and an elegant exter-
nal coating reduce heat loss and improve efciency.
- A ange is provided for easy cleaning and to allow an
extra heat exchanger to be added (Riello 7000.2000/F -
3000/F - 5000/F models only).
Riello 7000 storage tanks can be connected to a special
solar controller and can be integrated in solar heating sy-
stems in which Riello boilers or water heaters serve as au-
xiliary heat generators. A heat exchanger for installation
on the ange is available separately for the Riello 7000
.2000/F - 3000/F - 5000/F model.
3 Product description
4 Identication
Riello S.p.A.
Via degli Alpini 1
37045 Legnago (VR) - Italy
Riello S.p.A.
Via degli Alpini 1
37045 Legnago (VR) - Italy

5
Riello 7000
1
A
B
C
D
E
F
2
4
3
3
78
1 2
A
B
C
D
3
3
3
3
3
3
4
4
4
6
5
3
3
3
3
3
3
3
3
4
4
4
4
79
1 - Soft polyurethane insulation (100 mm)
2 - Vent/outlet tting (Ø1"1/4F)
3 - Outlet/return ttings (Ø 1”1/2F)
4 - Probe wells (Ø 1/2"F)
5 - Collector outlet tting (Ø 1" F)
6 - Collector return tting (Ø 1" F)
7 - Tank
8 - Coil
Riello 7000.1000/S and 1500/S models
Riello 7000.2000/F - 3000/F - 5000/F models
1 - Soft polyurethane insulation (100 mm)
2 - Vent/outlet tting (Ø 1"1/4F)
3 - Outlet/return ttings (Ø 1”1/2F)
4 - Probe wells (Ø 1/2"F)
7 - Tank
9 - Tank inspection ange
5 Design
Riello
7000.
1000/S
Riello
7000.
1500/S
A280 390 mm
B805 850 mm
C1335 1310 mm
D1860 1770 mm
E280 390 mm
F990 1290 mm
Riello
7000.
2000/F
Riello
7000.
3000/F
Riello
7000.
5000/F
A390 390 465 mm
B 950 1020 1095 mm
C1510 1650 1725 mm
D2070 2280 2355 mm

6
Riello 7000
COIL pressure drop (Riello 7000.1000/S -1500/S models only)
6 Technical specications
7 Pressure drops
0 12345
PERDITA DI CARICO (mbar)
PORTATA (m
3
/h)
650
600
550
500
450
400
350
300
250
200
150
100
50
0
STOR 1000 M
STOR 1500 M
Riello 7000.1500/S
Riello 7000.1000/S
FLOW RATE (m3/h)
PRESSURE DROP (mbar)
DESCRIPTION
Riello
7000.
1000/S
Riello
7000.
1500/S
Riello
7000.
2000/F
Riello
7000.
3000/F
Riello
7000.
5000/F
Storage tank type non vitried
Tank layout Vertical
Heat exchanger layout Vertical Vertical - - -
External diameter with insulation 990 1200 1300 1450 1800 mm
Height with insulation 2190 2165 2480 2720 2870 mm
Insulation thickness 100 mm
Flange diameter (external/internal) - - 290/220 290/220 290/220 mm
Probe well diameter 8 mm
Coil water capacity 14,6 21,6 - - - l
Coil heat exchange surface area 2,6 3,8 - - - m2
Power absorbed by coil (*) 68 99 - - - kW
Heating hot water production (*) 1700 2400 - - - l/h
Necessary capacity heat - exchanger (*) 2,9 4,2 - - - m3/h
Maximum working pressure of storage tank 3 bar
Maximum working temperature of storage tank 99 °C
Maximum working pressure of coil 6 6 - - - bar
Maximum working temperature of coil 99 °C
Net weight with insulation 225 285 345 415 570 kg
Useful volume 920 1410 2010 2959 5055 I
Dispersion 203 249 305 344 646 W
4,872 5,976 7,32 8,256 15,504 kWh/24h
Insulation type Soft PU shells
(*) According to DIN 4708, to get domestic hot water with ΔT 20°C (80°/60°C) on the heat-exchanger, please observe the values showed in the datasheet
concerning absorbed power and necessary capacity heat-exchanger.

7
Riello 7000
0
500
1000
1500
2000
2500
3000
3500
4000
4500
5000
5500
6000
6500
7000
7500
8000
012345
PERDITA DI CARICO (mbar)
PORTATA (m
3
/h)
Ø
H
Ø
H
Riello 7000.1000/S e
1500/S models
Riello 7000.2000/F - 3000/F -
5000/F models
Heat exchanger coil KIT PRESSURE DROP (Riello 7000.2000/F - 3000/F - 5000/F models only)
PRESSURE DROP (mbar)
FLOW RATE (m3/h)
8 Dimensions and weight
Riello
7000.
1000/S
Riello
7000.
1500/S
Riello
7000.
2000/F
Riello
7000.
3000/F
Riello
7000.
5000/F
H - Height 2190 2165 2480 2720 2870 mm
Ø - Diameter 990 1200 1300 1450 1800 mm
Net weight with insulation 225 285 345 415 570 kg

8
Riello 7000
Riello 7000.1000/S e 1500/S solar storage tanks are deli-
vered in a single package, protected by a plastic bag and
supported by a wooden pallet.
Riello 7000.2000/F - 3000/F - 5000/F solar storage tanks
are delivered in two separate packages:
- The rst contains the painted tank, protected by a pla-
stic bag and supported on a wooden pallet. The tank is
complete with four probe wells tted in special sleeves.
(All other sleeves are covered with protective caps.) The
counter-ange comes ready bolted to the tank’s ange
and tted with a seal.
- The second package contains another plastic bag with
the elegantly nished polyurethane insulation, tting
sleeves for the insulation, thermoformed cover, ange
cover, identication plates and documentation.
The following items are delivered in a plastic bag inside the packaging:
- instruction manual
- data plate and label with bar code
- spare parts catalogue
- hydraulic test certicate
The instruction manual is an integral part of the solar storage tank. Once located, read it thoroughly and keep it
safe.
Riello 7000.1000/S - 1500/S
Riello 7000.2000/F - 3000/F - 5000/F
9 Unpacking the product

9
Riello 7000
Riello 7000 solar storage tanks can be installed in any room where there is no specic requirement for an electrical
protection rating higher than IP X0D.
The room where the appliance is installed must, however, be dry to prevent the formation of rust.
Respect the minimum specied installation distances to ensure correct installation and access for maintenance
When installing Riello 7000 solar storage tanks in old systems or systems requiring modernisation, always perform the
following checks:
- Make sure that the system is tted with safety and control devices in accordance with applicable legislation and
standards.
- Make sure that the system has been ushed out to remove all sludge and lime scale, and has been vented and seal
tested.
1
2
1
1
Riello 7000.2000/F - 3000/F - 5000/F
Riello 7000.1000/S - 1500/S
Make sure that any lifting equipment is of adequate capa-
city to lift and move the storage tank.
Cut the straps (1) to remove the tank from the pallet.
On Riello 7000.1000/S e 1500/S models the straps are loca-
ted under the insulation at the hinges.
The storage tanks are tted with a plug (2) into which you
can screw a lifting eyebolt (Ø 10 mm). Make sure that the
eyebolt is strong enough to lift the weight of the tank.
To lift Riello 7000.2000/F - 3000/F - 5000/F storage tanks,
rst remove the insulation, then attach a rope of adequa-
te strength to the top of the tank before proceeding to lift
with great care.
Wear suitable personal protective equipment and
use suitable safety devices.
Do not leave packaging material within the reach of
children, since it can become a potential hazard.
10 Handling
11 Place of installation
12 Installation in older systems and systems requiring modernisation

10
Riello 7000
1
1
2
2
2
3
5
6
4
Once the storage tank is correctly positioned inside the
room where it is to be installed, proceed to t the insula-
tion and the accessories to complete the tank.
Proceed as follows:
- Unpack all the material from the second package.
- Wrap the insulation (1) around the storage tank, careful-
ly lining up the ttings with the holes on the inside of
the insulation. Secure the insulation in place with the
zips (2) at the edges of the two sections.
- Perforate the insulation at the ttings and t the insu-
lation sleeves (3).
- Fit the ange cover (4).
- Finally, t the insulation top panel (5) and cover it with
the cover (6).
With all the insulation in place, apply the serial
number plate, data plate and product identication
plate to ensure that the storage tank can be accura-
tely identied (see the plate positions on page 14).
13 Fitting the insulation (Riello 7000.2000/F - 3000/F - 5000/F)

11
Riello 7000
It is essential to perform the following checks before
starting up or testing the functioning of the storage tank.
In particular, check that:
- The supply cocks are all open in the heating water cir-
cuit.
- The water connections to the boiler and to the valve
group of the solar heating system have been made cor-
rectly.
- The solar heating circuit has been correctly ushed out
and lled with water-glycol mix, and all air has been
bled out of the circuit
Scheduled maintenance is essential for the safety, efciency and long working life of your solar storage tank. Proper
maintenance also reduces energy consumption and ensures reliability over time. Have your storage tank serviced either
by a Riello Technical Assistance Centre or by a qualied professional at least once a year.
Perform the following operations before beginning any
maintenance.
- Switch the electricity supply to all the devices in the sto-
rage tank’s water circuit and to any associated boiler
OFF at the main switch and at the control panel.
- Close the shut-off cocks for the heating water circuit.
- Drain the storage tank, or its secondary circuit if a pri-
mary circuit is connected.
EXTERNAL CLEANING
Clean the outside of the storage tank’s insulation with a soft cloth damped in soapy water. To remove stubborn marks,
use a cloth damped in a 50% mix of water and denatured alcohol or a suitable cleaning product. Dry the storage tank
after cleaning it.
Do not use abrasive products, petrol or triethylene.
INTERNAL CLEANING
(Riello 7000.2000/F - 3000/F - 5000/F models only)
- Use a wrench to unscrew the ange xing bolts and remove the counter-ange complete with the seal.
- Clean inside the tank and remove any residues through the access hole.
Once cleaned, ret all components, following the above steps in the reverse order.
Tighten the ange xing bolts, proceeding diagonally around the ange to apply pressure uniformly around the
seal.
- Fill the storage tank circuit and check that there are no leaks from any of the seals.
- Check the performance of the storage tank.
14 Preparing for the initial start-up
15 Maintenance
16 Cleaning and removing internal components

RIELLO S.p.A.
37045 Legnago (VR)
Tel. [phone] - Fax [phone] - www.riello.it
The manufacturer strives to continuously improve all products. Appearance, dimensions, technical specications, standard equipment
and accessories are therefore liable to modication without notice.