11
En
g
lish
1.1
General precautions
9
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.
9
This product must be installed by a legally qualified
heating engineer. On completion of the installation,
the installer must issue the owner with a declara-
tion of conformity confirming that the installation
has been completed to the highest standards in com-
pliance with the instructions provided by
R
in this
instruction manual, and that it conforms to all appli-
cable laws and standards.
9
This product must only be used for the purpose for
which it is designed and made, as specified by
R
.
R
declines all responsibility, contractual or other,
for damage to property or injury to persons or animals
caused by improper installation, adjustment, mainte-
nance or use.
9
The product must be serviced at least once a year.
Servicing must be arranged in advance with the
R
Technical Assistance Centre.
9
All servicing and repairs must be performed by a qua-
lified heating engineer.
9
If water leaks from the storage cylinder, turn off the
water supply and contact
R
’s Technical Assistance
Centre or a qualified heating engineer immediately.
9
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 opera-
tions 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 fitted) and at the mains power switch
− Drain the central heating circuit and domestic hot
water circuit if there is any risk of freezing.
9
This instruction manual is an integral part of the pro-
duct. It must be kept safe and must ALWAYS accom-
pany 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 replacement imme-
diately. Keep the product purchase documents to be
presented to the
R
authorised Technical Assistance
Centre to request a service call under warranty.
9
Size the solar expansion tank so as to ensure comple-
te absorption of the expansion of the fluid contained
within the system, with reference to the prevailing
regulations on the matter. In particular, consider flu-
id characteristics, considerable fluctuation of service
temperature and vapour that might be generated du-
ring solar collector stagnation stage. Proper size of ex-
pansion tank ensures setting off of all volume changes
of the heat transfer fluid, avoiding excessive pressure
increase. Limited pressure changes avoid reaching sa-
fety valve opening pressure and the consequent fluid
drainage.
1.2
Fundamental safety rules
Please remember that the use of products using electric
power and water involves respect for a few basic safety
rules such as:
0
Never attempt to install the system without using sui-
table personal protection equipment and without fol-
lowing all applicable occupational safety standards.
0
Do not touch the product when barefoot or wet if it
has any electrical accessories installed in it.
0
Never clean or service the storage cylinder without
first turning the mains power switch OFF to discon-
nect all electrical accessories (if fitted) from the mains
electricity supply.
0
Never pull, disconnect, or twist any electrical cables
coming from the appliance even if it is disconnected
from the mains electricity supply.
0
Do not expose the storage cylinder to the elements. It
is not designed for use outdoors.
0
If solar plant pressure decreases, it is forbidden to top
up with only water as there is a danger of freezing and
overheating.
0
Do not use connections or safety devices or fittings
(expansion vessels, pipes, insulation) that are not
specifically designed and tested for use in solar water
heating systems.
0
Do not allow children or infirm persons to operate the
system unsupervised.
0
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 packa-
ging material in compliance with applicable legisla-
tion.
1.3
Description of the appliance
Storage cylinders are designed for use in systems with
heat pumps and guarantee excellent heat transfer thanks
to a special, larger coil.
They are internally vitrified to permit the production of
domestic hot water (DHW), and have external insulation in
the form of 100 mm thick rigid polyurethane.
Storage cylinders can be fitted with an additional (option-
al) heat exchanger to integrate a solar collector heating
circuit.
They come complete with sensor sockets, a magnesium
anode and a fitting for the installation of an (optional)
electrical heating element.
1.3.1
Main Hydraulic Diagram (fig. 1)
GENERAL
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