Riello 7000.1000/S User manual

cod. Doc-0046319 rev. 9 08/2017
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 20136260
RIELLO 7000.1500/S 20136261
RIELLO 7000.2000/F 20136256
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
Check that the product is complete, undamaged and
as ordered as soon as you receive it. Report any di-
screpancies or damage to the
R dealer who sold
it.
This product must be installed by a legally qualied
heating engineer. On completion of the installation,
the installer must issue the owner with a declara-
tion of conformity conrming that the installation
has been completed to the highest standards in
compliance with the instructions provided by
R in
this instruction manual, and that it conforms to all
applicable laws and standards.
This product must only be used for the purpose for
which it is designed and made, as specied by
R .
R declines all responsibility, contractual or other,
for damage to property or injury to persons or ani-
mals caused by improper installation, adjustment,
maintenance or use.
The product must be serviced at least once a year.
Servicing must be arranged in advance with the
R
Technical Assistance Centre.
All servicing and repairs must be performed by a
qualied heating engineer.
If water leaks from the storage cylinder, turn off the
water supply and contact
R ’s Technical Assistance
Centre or a qualied heating engineer immediately.
If the product is not going to be used for an extended
period of time, contact the manufacturer’s Technical
Assistance Centre to have at least the following ope-
rations performed:
- Close the shut-off cocks for the domestic hot water
circuit
- Shut down the boiler connected to the storage
cylinder as instructed in its own manual
- Switch the storage cylinder OFF at the control panel
(if tted) and at the mains power switch
- Drain the central heating circuit and domestic hot
water circuit if there is any risk of freezing.
This instruction manual is an integral part of the
product. It must be kept safe and must ALWAYS ac-
company the product, even if it is sold to another
owner or transferred to another user or to another
installation. If you lose this manual, order a repla-
cement immediately. Keep the product purchase
documents to be presented to the
R authorised
Technical Assistance Centre to request a service call
under warranty.
Size the solar expansion tank so as to ensure com-
plete absorption of the expansion of the uid con-
tained within the system, with reference to the
prevailing regulations on the matter. In particular,
consider uid characteristics, considerable uctua-
tion of service temperature and vapour that might
be generated during solar collector stagnation stage.
Proper size of expansion tank ensures setting off of
all volume changes of the heat transfer uid, avoi-
ding excessive pressure increase. Limited pressure
changes avoid reaching safety valve opening pres-
sure and the consequent uid drainage.
Please remember that the use of products using electric
power and water involves respect for a few basic safety
rules such as:
Never attempt to install the system without using
suitable personal protection equipment and without
following all applicable occupational safety stan-
dards.
Do not touch the product when barefoot or wet if it
has any electrical accessories installed in it.
Never clean or service the storage cylinder without
rst turning the mains power switch OFF to discon-
nect all electrical accessories (if tted) from the
mains electricity supply.
Never pull, disconnect, or twist any electrical cables
coming from the appliance even if it is disconnected
from the mains electricity supply.
Do not expose the storage cylinder to the elements.
It is not designed for use outdoors.
If solar plant pressure decreases, it is forbidden to
top up with only water as there is a danger of free-
zing and overheating.
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 wa-
ter heating systems.
Do not allow children or inrm persons to operate
the system unsupervised.
Do not dispose of packaging material into the en-
vironment, or leave it within the reach of children,
since it can become a potential hazard. Dispose of
packaging material in compliance with applicable
legislation.
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
Solar storage tanks are specically designed for integra-
tion in central heating systems (not for DHW use).
The most important technical features of these storage
tanks are:
- The tank and coils (only for models where provided) are
specially designed and shaped for optimum performan-
ce in terms of stratication, heat exchange and repleni-
shment 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 (only for models whe-
re provided).
Storage tanks can be connected to a special solar con-
troller and can be integrated in solar heating systems in
which Riello boilers or water heaters serve as auxiliary
heat generators.
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 (8 mm)
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 (8 mm)
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)
(*) In accordance with DIN 4708 with a ΔT of 20°C (80°/60°C) at the coil.
DESCRIPTION
Riello
7000.
1000/S
Riello
7000.
1500/S
Riello
7000.
2000/F
Riello
7000.
3000/F
Riello
7000.
5000/F
Type of buffer tank non vitried
Tank layout Vertical
Buffer tank capacity 920 1410 2010 2959 5055 l
Diameter with insulation 990 1200 1300 1450 1800 mm
Diameter of storage cylinder without insulation 790 1000 1100 1250 1600 mm
Height with insulation 2190 2165 2480 2720 2870 mm
Height without insulation 2115 2090 2405 2645 2795 mm
Insulation thickness 100 mm
Flange diameter (external/internal) - - 290/220 290/220 290/220 mm
Maximum operating pressure 3 bar
Maximum operating temperature 99 °C
Net weight with insulation 172 239 330 415 570 kg
Diameter of sensor socket 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
Flow required at coil (*) 2,9 4,2 - - - m3/h
Maximum working temperature of coil 110 - - - °C
Maximum operating pressure of coil 6 - - - bar
Discharges according to EN 12897:2006
(∆T=45 °C, ambient 20°C and storage at 65°C)
143 167 190 344 646 W
3,43 4,01 4,56 8,256 15,504 kWh/24h
Insulation type Soft PU shells

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 172 239 330 415 570 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
- 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.