Nova Florida Seven 700/80 SEVEN 700/80 Manual De Usuario
Los códigos de productos
SEVEN 700/80
Marks of Quality
SEVEN radiators are bear the most prestigious marks of quality on the market:
marks and
guarantee the power rating declared in the documents.
Marks and
are issued respectively by the independent, notifying cer-
tification bodies AFNOR and AENOR and are shown on every element and
every pack that leaves our works.
every pack that leaves our works.
RADIATOR DIMENSIONS
Current regulations must be com-
plied with when calculating the
thermal output of radiators for in-
stallation.
When determining the number of
elements in a radiator, remember
that the nominal thermal output re-
fers to a ∆T – the difference between
the average water temperature and
the room temperature – of 50 K.
Therefore, in order to save energy
and improve environmental comfort,
it is advisable to use for the system
a design ∆T of less than 50 K, (e.g. 30
K ÷ 40 K) and decrease the water de-
livery temperature.
The thermal output value for the ra-
diators for various values of ∆T is
obtained, using the formula:
plied with when calculating the
thermal output of radiators for in-
stallation.
When determining the number of
elements in a radiator, remember
that the nominal thermal output re-
fers to a ∆T – the difference between
the average water temperature and
the room temperature – of 50 K.
Therefore, in order to save energy
and improve environmental comfort,
it is advisable to use for the system
a design ∆T of less than 50 K, (e.g. 30
K ÷ 40 K) and decrease the water de-
livery temperature.
The thermal output value for the ra-
diators for various values of ∆T is
obtained, using the formula:
Φ = K
m
x ∆T
n
Example: To calculate the thermal
output for a SEVEN 97 500/100 ra-
diator element, with the water tem-
perature of: 60 °C at the intake and
44 °C at the outlet, and the ambient
temperature at 20 °C.
∆T = (intake water temp + outlet
water temp) / 2 - ambient temp =
output for a SEVEN 97 500/100 ra-
diator element, with the water tem-
perature of: 60 °C at the intake and
44 °C at the outlet, and the ambient
temperature at 20 °C.
∆T = (intake water temp + outlet
water temp) / 2 - ambient temp =
(60 + 44) / 2 - 20 = 32 K.
∆ (32K) = K
∆ (32K) = K
m
x ∆T
n
= 0.7198 x
(32)
1.3293
= 72.11 W
A rough estimate of the thermal ou-
tput value for various values of ∆T
can also be obtained using the table
of correction coefficients, calculated
for a mean value of n = 1.33. In this
case the error in determining the
thermal output is within ± 3%.
Using the correction coefficients,
the output required is obtained by
multiplying the output value of ∆T =
50 K by the coefficient that corre-
sponds to the ∆T desired:
tput value for various values of ∆T
can also be obtained using the table
of correction coefficients, calculated
for a mean value of n = 1.33. In this
case the error in determining the
thermal output is within ± 3%.
Using the correction coefficients,
the output required is obtained by
multiplying the output value of ∆T =
50 K by the coefficient that corre-
sponds to the ∆T desired:
Φ (32 K) = 130.53 W x 0.552 = 72.05 W
When determining the number of
elements, remember that in installa-
tions in which the water enters and
leaves from the bottom or with a sin-
gle- or double-pipe valve, the ther-
mal output may drop to 10-12 % and
20%, respectively, due to the parti-
cular water distribution inside the
radiator. For radiators installed be-
low shelves, in alcoves or – worse still
– when using radiator covers – the
thermal output may drop to 10-
12%.
elements, remember that in installa-
tions in which the water enters and
leaves from the bottom or with a sin-
gle- or double-pipe valve, the ther-
mal output may drop to 10-12 % and
20%, respectively, due to the parti-
cular water distribution inside the
radiator. For radiators installed be-
low shelves, in alcoves or – worse still
– when using radiator covers – the
thermal output may drop to 10-
12%.
INSTRUCTIONS FOR INSTALLATION,
USE AND SERVICE
When designing, installing, using and
servicing central heating systems,
please comply with all requirements
and standards in force in the country
of installation.
Please read the following recommen-
dations carefully.
• the radiators can be used in hot wa-
ter and vapour systems (maximum
temperature 120°C);
• maximum working pressure is 6
bars (600 kPa);
• the radiators must be installed in
such a way as to guarantee the fol-
lowing minimum distances: 12 cm
from the floor; 2 ÷ 5 cm from the rear
wall; 10 cm from alcoves or shelves;
• the rear wall must be sufficiently
insulated in order to prevent heat
loss;
• each radiator must be equipped
with an air valve, if possible an auto-
matic one (especially if the radiator is
to be separated from the system);
• at a temperature of 25°C the system
water’s pH must be between 7 and 8
and it must not be metal corrosive; it
should be therefore treated with pro-
USE AND SERVICE
When designing, installing, using and
servicing central heating systems,
please comply with all requirements
and standards in force in the country
of installation.
Please read the following recommen-
dations carefully.
• the radiators can be used in hot wa-
ter and vapour systems (maximum
temperature 120°C);
• maximum working pressure is 6
bars (600 kPa);
• the radiators must be installed in
such a way as to guarantee the fol-
lowing minimum distances: 12 cm
from the floor; 2 ÷ 5 cm from the rear
wall; 10 cm from alcoves or shelves;
• the rear wall must be sufficiently
insulated in order to prevent heat
loss;
• each radiator must be equipped
with an air valve, if possible an auto-
matic one (especially if the radiator is
to be separated from the system);
• at a temperature of 25°C the system
water’s pH must be between 7 and 8
and it must not be metal corrosive; it
should be therefore treated with pro-
ducts for multimetal systems - refe-
rence should also be made to stan-
dards in force in the country of
installation. Only specific products,
such as CILLIT HS 23 Combi or Senti-
nel X100, should therefore be used.
If the water in the system is shown to
be corrosive, the guarantee will auto-
matically be rendered void.
• the surfaces supporting the seals of
the side elements are always painted;
when assembling the sections threa-
ding and fitting the plugs, do not
sandpaper or file them to avoid any
water leaks.
• abrasive products must not be used
to clean the radiator’s surfaces;
• porous humidifiers such as ear-
thenware must not be used;
• the radiator should not be cutoff
from the sytem by closing the valve
completely;
• if the radiator needs to be vented
on a regular basis, this indicates that
the system is not functioning proper-
ly and a trusted technician, or the of-
ficial importer’s after-sales service,
should therefore be contacted.
rence should also be made to stan-
dards in force in the country of
installation. Only specific products,
such as CILLIT HS 23 Combi or Senti-
nel X100, should therefore be used.
If the water in the system is shown to
be corrosive, the guarantee will auto-
matically be rendered void.
• the surfaces supporting the seals of
the side elements are always painted;
when assembling the sections threa-
ding and fitting the plugs, do not
sandpaper or file them to avoid any
water leaks.
• abrasive products must not be used
to clean the radiator’s surfaces;
• porous humidifiers such as ear-
thenware must not be used;
• the radiator should not be cutoff
from the sytem by closing the valve
completely;
• if the radiator needs to be vented
on a regular basis, this indicates that
the system is not functioning proper-
ly and a trusted technician, or the of-
ficial importer’s after-sales service,
should therefore be contacted.
The quality marks guarantee that the ∆T
= 50 K thermal output was measured in
compliance with current standards by in-
dependent, accredited laboratories, the-
reby making simple quick comparison of
the various products possible, resulting
in competitiveness on the market that is
transparent and true.
The NF and N quality marks certify that
Seven radiators conform to current Eu-
ropean standards (EN 442), as well as
guaranteeing that manufacturing of the
radiators is subject to an ISO 9001:2000
quality management system.
= 50 K thermal output was measured in
compliance with current standards by in-
dependent, accredited laboratories, the-
reby making simple quick comparison of
the various products possible, resulting
in competitiveness on the market that is
transparent and true.
The NF and N quality marks certify that
Seven radiators conform to current Eu-
ropean standards (EN 442), as well as
guaranteeing that manufacturing of the
radiators is subject to an ISO 9001:2000
quality management system.
The bodies that control the marks carry
out routine supervisory audits on each of
the Manufacturer’s production plants and
ensure that conformity of the radiators to
the certification requirements is maintai-
ned by taking sample products from the
production line and from points of sale.
The correctness of the data indicated
provides both users and designers with a
out routine supervisory audits on each of
the Manufacturer’s production plants and
ensure that conformity of the radiators to
the certification requirements is maintai-
ned by taking sample products from the
production line and from points of sale.
The correctness of the data indicated
provides both users and designers with a
guarantee in relation to reliability and the
correctness of the heating system’s heat
outputs, when sized to meet the effec-
tive needs of the end user, avoiding any
wastage or under-sizing. Unless reliable
data that has been checked is available to
them, professionals responsible for sizing
system risk seeing their work compromi-
sed. Choosing products that bear the NF
or N mark is a sign of professionalism.
The mark introduced for our radiators as
from 1/12/2004 relating to European Di-
rective 89/106/EEC is a mark that manu-
facturers add of their own free will, and
constitutes in-house certification of the
product.
correctness of the heating system’s heat
outputs, when sized to meet the effec-
tive needs of the end user, avoiding any
wastage or under-sizing. Unless reliable
data that has been checked is available to
them, professionals responsible for sizing
system risk seeing their work compromi-
sed. Choosing products that bear the NF
or N mark is a sign of professionalism.
The mark introduced for our radiators as
from 1/12/2004 relating to European Di-
rective 89/106/EEC is a mark that manu-
facturers add of their own free will, and
constitutes in-house certification of the
product.
This
mark indicates that the product
complies with the Community Directives
but, unlike other voluntary quality marks,
it is not subject to audit by independent
bodies.
but, unlike other voluntary quality marks,
it is not subject to audit by independent
bodies.
Dimensions and installation