Beretta STOR C 800 User manual

COMBINATION
STORAGE
CYLINDER
STOR C
SOLAR
INSTALLATION MANUAL

MANUALE INSTALLATORE
2
Dear Installer,
Thank you for choosing a BERETTA STOR C,combination storage cylinder. You have purchased
a modern, quality product that is designed to give dependable and safe service and to provide
comfort in the home for many years to come. Arrange for your combination storage cylinder to be
serviced regularly by an authorised BERETTA Technical Assistance Centre. Their personnel are
specially trained to keep your storage cylinder efficient 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 efficient functioning of your BERETTA STOR C combina-
tion storage cylinder.
Please accept our renewed thanks for your purchase.
Beretta
RANGE
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 20014957 - Rev. 7 (10/2013) is made up of 24 pages.
MODEL CODE
STOR C 800 20014351
STOR C 1000 20014352

3
CONTENTS
1 GENERAL SAFETY INFORMATION.......................................................... 4
2 PRODUCT DESCRIPTION ......................................................................... 5
Description ....................................................................................................................................................5
Identification ..................................................................................................................................................5
Design ...........................................................................................................................................................6
Technical specifications.................................................................................................................................7
Accessories...................................................................................................................................................8
Water circuit ..................................................................................................................................................9
3 INSTALLATION......................................................................................... 10
Unpacking the product ................................................................................................................................10
Dimensions and weight...............................................................................................................................10
Handling ......................................................................................................................................................11
Place of installation .....................................................................................................................................13
Installation in older systems and systems requiring modernisation............................................................13
Water connections.......................................................................................................................................14
Location of probes.......................................................................................................................................16
Initial start-up...............................................................................................................................................16
Preparing for extended periods of disuse ...................................................................................................18
Maintenance................................................................................................................................................18
Cleaning and removing internal components..............................................................................................19
4 RECYCLING/DISPOSAL .......................................................................... 20
Recycling/disposal.......................................................................................................................................20
5 TROUBLESHOOTING .............................................................................. 20

MANUALE INSTALLATORE
4
1 GENERAL SAFETY INFORMATION
b As soon as you open the packaging,
check immediately that the contents are
all present and undamaged. Contact
the BERETTA reseller from whom you
purchased the product if you notice any
problems.
b This BERETTA STOR C combination
storage cylinder must be installed by
a qualified installer (in Italy, law no. 46
of 5 March 1990). On completion of the
installation, the installer must issue the
owner with a declaration of conformity
confirming that the installation has been
completed to the highest standards in
compliance with the instructions pro-
vided by BERETTA in this instruction
manual, and that it conforms to all appli-
cable laws and standards.
b This BERETTA STOR C combination
storage heater must only be used for the
purpose specified by BERETTA and for
which it is designed. The manufacturer
declines all responsibility, contractual or
other, for damage to property or injury to
persons or animals caused by improper
installation, adjustment, maintenance or
use.
b If you notice any water leaking from the
cylinder, disconnect it immediately from
the mains electricity supply, shut off the
water supply, and notify your BERETTA
Technical Assistance Centre or a quali-
fied technician immediately.
b This combination storage cylinder must
be serviced at least once a year. If
the combination storage cylinder is not
going to be used for an extended period
of time, prepare it for shut-down as fol-
lows:
- Turn the system’s main power switch
OFF
- Drain the solar water circuit
- Close the fuel cock and heating water
cock
- Drain the central heating circuit and
domestic hot water circuit if there is
any risk of freezing
b Anti-freeze (propylene glycol) is avail-
able separately and must be mixed
with water in a percentage varying from
30% to 50% as instructed in the relevant
BERETTA installation and maintenance
manual.
b Only fill the solar heating system with
water and glycol premixed in the per-
centages specified in the BERETTA
installation and maintenance manual.
b This instruction manual is an integral
part of the appliance. It must be kept
safe and must ALWAYS accompany 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, order a replacement
immediately from your local BERETTA
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:
a Do not allow children or infirm persons
to operate the combination storage cyl-
inder unsupervised.
a Do not touch the combination storage
cylinder when barefoot or wet.
a Never clean or service the combination
storage cylinder without first disconnect-
ing it from the mains electricity supply
by turning the main power switch and
the control panel switch OFF.
a Do not interfere with any control devic-
es without specific authorisation and
instructions from the manufacturer.
a Never pull, disconnect, or twist the elec-
trical cables coming from the appliance
even if it is disconnected from the mains
electricity supply.
a Do not expose the combination stor-
age cylinder to the elements. It is not
designed for use outdoors.
a Do not leave packaging material with-
in the reach of children, since it can
become a potential hazard.
a 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.
a Do not use connections or safety devic-
es or fittings (expansion vessels, pipes,
insulation) that are not specifically
designed and tested for use in solar
heating installations.

5
2 PRODUCT DESCRIPTION
BERETTA STOR C combination storage cylinders consist of a domestic hot water tank immersed
in an inertial storage cylinder. They are specifically designed for domestic hot water production
and heat integration in heating systems incorporating BERETTA SC solar collectors.
The most important technical features of these combination storage cylinders are:
- The cylinder and coil are specially designed
and shaped for optimum performance in
terms of stratification, heat exchange and
replenishment times
- The vitrified lining of the domestic hot water
tank is bacteriologically inert for maximum
hygiene, reduced lime scale deposits and
easy cleaning
- Water fittings are available at different
heights, permitting different hot water gen-
erators to be used without reducing the
stratification effect
- CFC-free polyurethane insulation and an
elegant external casing reduce heat loss
and improve efficiency
- A flange is provided for easy cleaning and
maintenance and a magnesium anode is
provided to prevent corrosion
- Excellent flexibility permits use in both high
and low temperature systems
- Dimensions are extremely compact thanks
to the clever combination of an inertial stor-
age cylinder and domestic hot water tank.
BERETTA STOR C combination storage cyl-
inders can be connected to a special solar
controller and can be integrated in solar heat-
ing systems in which BERETTA boilers or water
heaters serve as auxiliary heat generators.
BERETTA STOR C combination storage cylinders are identified by three plates:
2.1
Description
2.2
Identification
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 difficult.
– Data plate
This lists the technical specifications and perfor-
mance of the product.
– Product identification plate
This states the name of the product.

MANUALE INSTALLATORE
6
1
2
3
4
6*
7
9*
10
12
11
14
10
17
14
18
28
11
13
19
20
21
22
24
26
27
18
15 16
15 161410 17
13
5
8
23
25
1 - Insulation
2 - Inertial storage cylinder
3 - Solar coil
4 - Return to boiler 1-2
5 - Sleeve for electric heating element
(not supplied)
6* - Outlet from boiler 2 (low temperature)
7 - Domestic hot water tank
8 - Temperature gauge
9* - Outlet from boiler 1 (high temperature)
10 - Magnesium anode
11 - Flange
12 - Cylinder cover
13 - Flange cover
14 - Domestic hot water recirculation
15 - Domestic hot water outlet
16 - Domestic cold water in
17 - Domestic hot water probe well
18 - Vent valve fitting
19 - Heating flow 1 (high temperature)
20 - Boiler probe well
21 - Heating return 1 (high temperature)
22 - Auxiliary probe well
23 - Solar collector outlet
24 - Heating flow 2 (low temperature)
25 - Solar collector return
26 - Solar controller probe well
27 - Heating return 2 (low temperature)
Inertial storage cylinder drain
28 - Flange insulation
(*) with internal deflector
2.3
Design
Fig. 2.1

7
DESCRIPTION MODEL
STOR C 800 STOR C 1000
Type of domestic hot water tank vitrified
Type of inertial storage cylinder non vitrified
Domestic hot water tank layout vertical
Heat exchanger layout vertical
Inertial storage cylinder capacity 560 695 l
Domestic hot water tank capacity 240 285 l
Diameter with insulation 1000 mm
Diameter without insulation 790 mm
Height 1870 2196 mm
Insulation thickness 100 mm
Magnesium anode 32x460 Øxmm
Flange diameter (external/internal) 280/205 mm
Probe well diameter 1/2" Ø
Coil water capacity 16 19 l
Coil heat exchange surface area 2,80 3,16 m2
Power absorbed by coil (*) 76 92 kW
Continuous production of domestic hot water (*) 800 1000 l/h
Water draw in 10 minutes with mean ∆T of 35°
and main buffer tank at:
80°C 515 550 l
70°C 500 515 l
60°C 415 450 l
Maximum working pressure of domestic hot water tank 6 bar
Maximum working temperature of domestic hot water tank 99 °C
Maximum working pressure of inertial storage cylinder 3 bar
Maximum working temperature of inertial storage cylinder 99 °C
Maximum working pressure of coil 6 bar
Maximum working temperature of coil 99 °C
Heat loss 4,68 5,21 kW/24h
Net weight 210 265 kg
Gross weight (with packaging) 225 281 kg
2.4
Technical specifications
(*) With ∆T = 35°C and primary temperature = 80-60°C.
Performance achieved with heat generator of suitable power, adjusted for a flow rate of 4 m3/h for model STOR C
750 and 5 m3/h for model STOR C 1000.

MANUALE INSTALLATORE
8
COIL pressure drop
PRESSURE DROP (mbar)
FLOW RATE (l/h)
600
700
800
900
1000
1100
500
400
300
200
100
0
0 1000 2000 3000 4000 5000 6000
Mod. 1000 Mod. 750
Fig. 2.2
2.5
Accessories
The following accessories are available, to be ordered separately.
ACCESSORY CODE
Control box SUN B 20009244
Control box SUN C 20009246
Water outlet and return kit top 6,5 m 20009197
Water outlet and return kit 11 m 20009196
Thermostatic mixer valve 1150529
24 l expansion vessel 1150509
35 l expansion vessel 1150519

9
MC1
MC2 RI1
MI1
RI2
MI2
RC1-2
RL
UAC EAF
SB
M
RE
R
b BERETTA STOR C combination storage cylinders are delivered without a filling pump. A suitably rated
pump must be provided and installed separately.
For further information on the recommended solar heating circuit flow rate, see the installation instruc-
tions for the water outlet and return kit.
EAF - Domestic cold water inlet
RL - DHW recirculation
UAC - Domestic hot water outlet
MC1 - Outlet from boiler 1
(high temperature)
MC2 - Outlet from boiler 2
(low temperature)
RC1-2 - Return to boiler 1-2
RI2/SB - Heating return 2
(low temperature) /
Inertial storage cylinder drain
MI2 - Heating flow 2
(low temperature)
R - Collector return
M - Collector outlet
RE - Sleeve for electric
heating element
RI1 - Heating return 1
(high temperature)
MI1 - Heating flow 1
(high temperature)
2.6
Water circuit
Fig. 2.3

MANUALE INSTALLATORE
10
3 INSTALLATION
3.1
Unpacking the product
3.2
Dimensions and weight
Fig. 3.1
Fig. 3.2
Ø
H
BERETTA STOR C combination storage cyl-
inders are delivered in a single package,
protected by a plastic bag inside a protective
foam rubber wrapping and supported by a
wooden pallet.
The following items are delivered in a plastic
bag inside the packaging:
- instruction manual
- certificate of warranty and label with bar
code
- spare parts catalogue
- hydraulic test certificate
b The instruction manual is an integral
part of the combination storage cylinder.
Once located, read it thoroughly and
keep it safe.
DESCRIPTION MODEL
STOR C 800 STOR C 1000
H - Height 1870 2196 mm
Ø - Diameter 990 990 mm
Net weight 210 265 Kg
Gross weight (with packaging) 225 281 Kg

11
3.3
Handling
Fig. 3.3
Once you have removed the outer packaging,
proceed as follows to unpack and handle the
combination storage cylinder.
b Wear suitable personal protective equip-
ment and use suitable safety devices.
a Do not leave packaging material with-
in the reach of children, since it can
become a potential hazard.
17
Make sure that any lifting equipment is of ade-
quate capacity to lift and move the storage
cylinder.
Proceed as follows to remove the storage
cylinder from the pallet.
- Place a platform of about half the height of
the pallet near the storage cylinder. Make
sure the platform is able to support the
weight of the storage cylinder.
- Remove the brackets then carefully rotate
and slide the storage cylinder off the pallet
on to the platform.
- Make sure that the storage cylinder is per-
fectly stable, and then remove the pallet.
- Carefully rotate and slide the storage cylin-
der off the platform on to the floor.
- Remove the platform. Position the storage
cylinder as required.
Fit the feet provided into the holes in the
bottom of the storage cylinder and adjust as
necessary to compensate for any unevenness
in the floor.

MANUALE INSTALLATORE
12
2
3
4
5
6
The jacket of soft insulation can be removed
to facilitate access to the place of installation.
To do so, proceed as follows.
- Remove the plug (2). Unscrew the two fixing
screws and remove the top insulation sec-
tion (3)
- Remove the protective fitting plugs (4)
- Open the zipper (5)
- Remove the soft insulation (6).
To fit the soft insulation again, wrap it around
the storage cylinder, guiding it into position so
that it adheres snugly. Push the holes in the
insulation over the pipe fittings first in order to
support the insulation as you wrap it around
the storage cylinder. With the insulation fitting
snugly around the storage cylinder, engage
the zip slider and close the zip.
b The insulation must be at a temperature
of at least 20°C in order to fit it. If it is
too cold, warm it up before attempting to
wrap it around the storage cylinder.
b Pull the edges of the insulation together
above the zip as you close it in order to
avoid breakage. NEVER USE A PLIERS
OR SIMILAR TOOL TO PULL THE ZIP
SLIDER.
b Wear suitable personal protective
equipment and use suitable safety devi-
ces.
a Do not dispose of packaging material
into the environment, or leave it within
the reach of children, since it can
become a potential hazard. Dispose of
packaging material in compliance with
applicable legislation.

13
3.4
Place of installation
3.5
Installation in older systems
and systems requiring mod-
ernisation
BERETTA STOR C combination storage cylinders can be installed in any room where there is
no specific requirement for an electrical protection rating higher than IP X0D.
b The room where the appliance is installed must, however, be dry to prevent the formation
of rust.
b Specified minimum distances must be respected, and the space in which the combination
storage cylinder is to be installed must be easily accessible in order to permit easy instal-
lation and assembly and subsequent inspection, maintenance and repair. In particular,
access must permit the combination storage cylinder to be removed without disassembly
at the end of its useful life, and another unit to be installed in its place. Users are therefore
responsible for any costs incurred to demolish masonry or other structures preventing
or impeding free access to the space where the combination storage cylinder is to be
installed.
When installing BERETTA STOR C combina-
tion storage cylinders in old systems or sys-
tems requiring modernisation, always perform
the following checks:
- Make sure that the system is fitted with
safety and control devices in accordance
with applicable legislation and standards.
- Make sure that the circuit has been flushed
out to remove all sludge and lime scale, and
has been vented and seal tested.
- Make sure that a suitable water treatment
system is installed if the quality of the sup-
ply/recirculation water so demands. (Refer
to the reference values listed in the table
alongside).
REFERENCE VALUES
pH 6-8
Electrical conductivity below 200 mV/cm (25°C)
Chlorine ions below 50 ppm
Sulphuric acid ions below 50 ppm
Total iron below 0,3 ppm
Alkalinity M below 50 ppm
Total hardness below 35°F
Sulphur ions none
Ammonia ions none
Silicon ions below 30 ppm

MANUALE INSTALLATORE
14
BERETTA STOR C combination storage cylinders can be connected to even previously installed hot water genera-
tors provided they are of adequate output power, but care must be taken to ensure correct water flow directions. They
can also be easily integrated in BERETTA solar heating systems based on SC solar collectors with their correspond-
ing fixing system, water control group, expansion vessel and thermostatic mixer valve.
Water fittings have the following specifications:
3.6
Water connections
A460
520
580
444 183
442502
75
E
F
G
H
B
C
D
MC1 MI1
MI2
RI1
RI2-SB
MC2
RC1-2
M-R
VS
RL
UAC
EAF
Fig. 3.4
MC1 - Outlet from boiler 1 (Ø 1”1/4 F)
MC2 - Outlet from boiler 2 (Ø 1”1/4 F)
RC1-2 - Return to boiler 1-2 (Ø 1”1/4 F)
RI2/SB - Heating return 2 (Ø 1”1/4 M)/
(Inertial storage cylinder drain)
MI2 - Heating flow 2 (Ø 11”1/4 F)
M - Collector outlet (Ø 1” M)
R - Collector return (Ø 1” M)
RI1 - Heating return 1 (Ø 1”1/4 F)
MI1 - Heating flow 1 (Ø 1”1/4 F)
EAF - Domestic cold water in (Ø 1” M)
UAC - Domestic hot water out (Ø 1” M)
RL - DHW recirculation (Ø 3/4” M)
VS - Vent valve fitting (Ø 3/8” F)
We recommend that you install isolating valves in the outlet and return lines.
DESCRIPTION MODEL
STOR C 800 STOR C 1000
A 800 960 mm
B 1100 1260 mm
C 1460 1785 mm
D 1870 2196 mm
E 800 960 mm
F 830 925 mm
G 1100 1260 mm
H 1460 1785 mm

15
b The domestic hot water tank must be
filled and pressurised before the iner-
tial storage cylinder is filled.
b In very hard water areas, use suitably
treated water to fill the inertial storage
cylinder.
b Make sure that the combination storage
cylinder is full of water before starting up
the solar heating system.
b If the combination storage cylinder is
installed in systems that operate at pres-
sures in excess of 4 bar, fit a pressure
reducer.
b A non-return valve must be fitted at the
top of the inertial storage cylinder to pre-
vent natural circulation developing.
b Take care when opening the solar heat-
ing circuit’s vent valves. Risk of burns!
b Make sure that the solar circuit’s expan-
sion vessel is able to withstand high
temperatures and that its membrane is
resistant to the water-glycol mix.
b The domestic hot water system MUST
INCLUDE an expansion vessel, safety
valve, automatic vent valve and combi-
nation storage cylinder drain cock.
b The safety valve must be connected to
a suitable collection and drain system.
The manufacturer declines all respon-
sibility for damage caused by water
escaping from the safety valve.
b Use a thermostatic mixer valve to limit
the domestic hot water outlet tempera-
ture.
b If the pressure in the solar heating circuit
drops, do NOT top up with water but
use the proper water-glycol mix. Risk of
freezing!
b All piping, collectors, heat exchangers
and other devices in the circuit must be
subjected to proper hydraulic seal test-
ing.
b The choice of system components and
the method of their installation are left up
to the installer. Installers must use their
expertise to ensure proper installation
and functioning in compliance with all
applicable legislation.
b The lower the temperature of the heating
return (<40°C), the greater the efficiency
of the solar heating system.
b Make sure that all components chosen
for use with the system are able to with-
stand the thermal load involved. In the
summer months, when the solar heat-
ing system is not used for the central
heating, steam can form inside the col-
lectors, and temperatures can exceed
120°C even near the combination stor-
age cylinder.
b The size of the combination storage cyl-
inder must be chosen to suit the solar
heating system. It must be big enough
to store excess heat after the domestic
hot water tank has been heated without
being too big. Water temperature in the
inertial storage cylinder should be about
10°C higher than the return from the low
temperature heating system.
b Insulate the pipes from the inertial stor-
age cylinder to avoid heat loss.

MANUALE INSTALLATORE
16
Well for
DOMESTIC HOT
WATER PROBE
Well for
BOILER PROBE
Well for
AUXILIARY
PROBE
Well for
SOLAR
CONTROLLER
PROBE
3.7
Location of probes
3.8
Initial start-up
It is essential to perform the following checks
before starting up or testing the functioning of
the combination storage cylinder. In particular,
check that:
- The supply cocks are all open in the domes-
tic water circuit.
- The water connections to the boiler and
solar heating system have been made cor-
rectly.
- The solar heating circuit has been correctly
flushed out and filled with water-glycol mix,
and all air has been bled out of the circuit.
b The domestic hot water tank must be
filled and pressurised before the inertial
storage cylinder is filled.
Fig. 3.5
Fig. 3.6
BERETTA STOR C combination storage cyl-
inders incorporate probe wells for fitting the
solar controller and boiler probes. Make sure
that these probes are inserted all the way.
b To access the well for the domestic hot
water probe, you must remove the two
flange covers. (Drill a hole for the cable
if necessary).
b Installers are responsible for all connec-
tions to the boiler or hot water generator.
Installers must ensure proper installation
and functioning in compliance with all
applicable legislation.

17
Heat is only transferred from the solar heating
circuit to the combination storage cylinder
when the temperature of the solar collectors
exceeds that in the combination storage cylin-
der. It is therefore temperature differential rath-
er than absolute temperature that is important
in controlling solar water heating systems.
- Set the required temperature differential
between the collector and combination stor-
age cylinder (see the instruction manual for
the controller).
- Start up the boiler to provide auxiliary heat-
ing for the combination storage cylinder.
Once the system has been started up, per-
form the following checks:
- Check that the flow rate in the solar heating
circuit is equivalent to 30 l/h for each m2of
collector area
- Check that the solar heating circuit has
been properly bled
- Check that the cold pressure of the system
is approximately 3 bar
- Check that the safety valve operates at 6 bar
- Check that all pipes in the water circuit have
been insulated in conformity to relevant
standards.
HEATING CIRCUIT
- Check that the heating circuit has been
properly bled
Provided all the above checks have been
completed successfully, re-start the boiler and
the storage cylinder and check the tempera-
ture settings and domestic hot water draw
rate.
1
2
3
4
5
06
1
2
3
4
5
06
Fig. 3.7
Fig. 3.8 Fig. 3.9
Fig. 3.10
Fig. 3.11

MANUALE INSTALLATORE
18
3.9
Preparing for extended peri-
ods of disuse
3.10
Maintenance
Fig. 3.12
Fig. 3.13
Fig. 3.14
If the combination storage cylinder is not
going to be used for an extended period of
time, prepare it for shut-down as follows:
- Shut down the boiler as instructed in its own
manual
- Turn the system’s main power switch OFF
- Drain the solar water circuit
- Close the fuel cock and heating water cock.
b Drain the domestic hot water (and cen-
tral heating) circuit if there is any risk of
freezing.
Contact your local BERETTA Technical
Assistance Centre if you encounter any prob-
lems in completing the above procedure.
Scheduled maintenance is essential for the safety, efficiency and long working life of your com-
bination storage cylinder. Proper maintenance also reduces energy consumption and ensures
reliability over time. Have your combination storage cylinder serviced either by a BERETTA
Technical Assistance Centre or by a qualified professional at least once a year.
Perform the following operations before begin-
ning any maintenance:
- Switch the electricity supply to the storage
cylinder’s valve group and to any associ-
ated boiler OFF at the main switch and at
the control panel
- Close the shut-off cocks for the domestic hot
water circuit
- Drain the storage cylinder’s secondary
water circuit.

19
1
2
3
4
5
6
7
3.11
Cleaning and removing inter-
nal components
Fig. 3.15
EXTERNAL CLEANING
Clean the outside of the combination storage
cylinder’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 combination storage cylinder
after cleaning it.
a Do not use abrasive products, petrol or
triethylene.
INTERNAL CLEANING
- Unscrew the fixing screws, then remove the
flange insulation (3), top cover (1) and the
flange covers (2).
- Use a wrench to unscrew the bolts (4) fix-
ing the flange (5) in place, and remove the
flange taking care not to damage the seal
(6) and magnesium anode (7).
- Clean inside the domestic hot water tank
and remove any residues through the
access hole.
- Check the magnesium anode (7) for wear
and replace it if necessary.
Once the cleaning operations have been com-
pleted refit all components, following the above
steps in the reverse order.
b Tighten the bolts (4) fixing the flange
(5), proceeding diagonally around the
flange to apply pressure uniformly
around the seal.
- Fill the combination storage cylinder’s sec-
ondary circuit and check that there are no
leaks from the seals.
- Check the performance of the storage cyl-
inder.

MANUALE INSTALLATORE
20
At the end of its useful life, the solar storage cylinder can be dismantled into its individual com-
ponents (cylinder body, insulation and external casing) for disposal or recycling in an environ-
mentally friendly manner.
4 RECYCLING/DISPOSAL
4.1
Recycling/disposal
5 TROUBLESHOOTING
CAUSE CORRECTIVE ACTION PROBLEM
The supply pressure is too high
The flow rate is too high
There are blockages or deposits
in the domestic hot water circuit
The pump is malfunctioning
Little hot water
is produced
Fit a pressure limiter
Fit a flow reducer
Check and clean as necessary
Check the pump
The water temperature is low in
the heat generator or
solar heating system
There are problems with the
storage cylinder’s thermostat
The pump is malfunctioning
There is lime scale or
sludge in the tank
Water temperature is low
Check the setting and condition
of the thermostat
Check the setting and condition
of the thermostat
Check the pump
Check and clean as necessary
There is air in the primary circuit Bleed the circuit
The water temperature in the
heat generator or solar heating
system is low
The filling pump is malfunctioning
There is air in the circuit
Replenishment times
are too long
Check the setting of the
thermostat
Check the pump
Bleed the circuit