Installation; Connecting Up System - Sime MURELLE HE 25 BF Manual De Instrucciones

2

INSTALLATION

The boiler must be installed in a fixed location
and only by specialized and qualified firms in
compliance with all instructions contained in
this manual. Furthermore, the installation
must be in accordance with current standards
and regulations.
2. 1 INSTALLATION
– Boilers can be installed in all domestic envi-
ronments without any whatsoever limit in
terms of location and comburent air supply.
– These boilers can also be installed in partial-
ly covered areas, as per EN 297, with a
maximum ambient temperature of 60°C
and a minimum ambient temperature of -
5°C. It is generally advisable to install the
boilers below weathered roofs, on the bal-
cony or in a protected niche, to protect
them from exposure to weathering agents
(rain, hail and snow). All boilers provide a
standard antifreeze function.
2. 1 . 1 Anti-freeze function
The boilers are equipped with anti-freeze func-
tion which activates the pumps and the burner
when the temperature of the water contained
inside the appliance drops to below 6°C. The
anti-freeze function is ensured, however, only if:
- the boiler is correctly connected to the gas
and electricity supply circuits;
- the boiler is constantly fed;
- the boiler ignition is not blocked;
- the essential components of the boiler are
all in working order.
In these conditions the boiler is protected
against frost down to an environmental tempe-
rature of -5°C.
ATTENTION: In the case of installation in a
place where the temperature drops below
0°C, the connection pipes must be protected.
2.2 COMPLEMENTARY ACCESSORIES
To simplify connections to the hydraulic and
gas supplies, it is also possible to use the fol-
lowing accessories:
– Mounting plate, code 8081218
– Kit with bends, code 8075423
– Kit with faucets, code 8091806
– Kit for the replacement of wall-mounting
assemblies of other manufacturers, code
8093900
– Solar kit for the inst ant aneous, code
8105101
– Hydraulic connection kit boiler BFT/BT100
tank unit code 8091111.
For detailed information on the assembly of fit-
tings, see the instructions contained in the
box.
2.3

CONNECTING UP SYSTEM

To protect the heat system from damaging
corrosion, incrustation or deposits, before
installation it is extremely important to clean
the system using suitable products such as,
for example, Sentinel X300 (new systems),
X400 and X800 (old systems) or Fernox
Cleaner F3. Complete instructions are provi-
ded with the products but, for further informa-
tion, you may directly contact SENTINEL
PERFORMANCE SOLUTIONS LTD or FERNOX
COOKSON ELECTRONICS.
For long-term protection agains corrosion and
deposits, the use of inhibitors such as Sentinel
X100 or Fernox Protector F1 is recommen-
ded after cleaning the system. It is important
to check the concentration of the inhibitor
after each system modification and during
maintenance following the manufacturer's
instructions (specific tests are available at
your dealer). The safety valve drain must be
connected to a collection funnel to collect any
discharge during interventions. If the heating
system is on a higher floor than the boiler,
install the on/off taps supplied in kit optional
on the heating system delivery/return pipes.
WARNING: Failure to clean the heat system
or add an adequate inhibitor invalidates the
device's warranty.
Gas connections must be made in accordance
with current standards and regulations. When
dimensioning gas pipes from the meter to the
module, both capacity volume (consumption) in
m 3 /h and gas density must be taken into
account.
The sections of the piping making up the
system must be such as to guarantee a supply
of gas sufficient to cover the maximum
demand, limiting pressure loss between the
gas meter and any apparatus being used to not
greater than:
– 1.0 mbar for family II gases (natural gas);
– 2.0 mbar for family III gases (butane or pro-
MURELLE HE 25-30-35 BF
5
8
12 1
10 11 3
MURELLE HE 12-20-25-30-35 BFT"
12
13
8
14
9
pane).
An adhesive data plate is sticked inside the
front panel; it contains all the technical data
identifying the boiler and the type of gas for
which the boiler is arranged.
2.3. 1 Connection of condensation
water trap
The drip board and its water trap must be con-
nected to a civil drain through a pipe with a
slope of at least 5 mm per metre to ensure
drainage of condensation water.
The plastic pipes normally used for civil
drains are the only type of pipe which is
appropriate for conveying condensation to
the building's sewer pipes.
2.3.2 Filter on the gas pipe
The gas valve is supplied ex factory with an inlet
filter, which, however, is not adequate to entrap
all the impurities in the gas or in gas main
pipes.
To prevent malfunctioning of the valve, or in cer-
tain cases even to cut out the safety device
with which the valve is equipped, install an ade-
quate filter on the gas pipe.
2.4 SYSTEM FILLING
Filling of the boiler and the system is done
by the charge system (2 fig. 4). The charge
pressure, with the system cold, must be
7 6
2 9 4
KEY
1 D.H.W. header
2 Fill tap
3 D.H.W. filter
4 By-pass
11
5 Water rate adjuster
6 D.H.W. exchanger
7 Microswitches
8 Water flow switch
9 Boiler discharge
10 D.H.W. sensor
11 Water pressure transducer
12 -------
13 Diverter valve
14 System loading connection
4
ES
PT
GB
Fig. 4
73