Electrical Wiring - Sime MURELLE 25 OF Manual Del Usuario

of the building Table 2 shows approximate,
ES
non-binding minimum distances to be met
for a building of the type shown in fig. 11.
PT
2. 1 1

ELECTRICAL WIRING

GB
If you must replace the electric power
cable supplied with the boiler, order it exclu-
sively from Sime. The power supply must be
single-phase 230V - 50 Hz through a main
switch protected by a fuse with a distance
of at least 3 mm between contacts.
NOTE: The boiler must be connected with
an efficient grounding system. SIME shall
not be held liable for injury or damage
resulting from failure to ground the boi-
ler.
ATTENTION: Before every inter-
vention on the boiler, cut off the
electricity supply by means of
the main switch of the system, since even
if the boiler is "OFF", the electrical panel
remains connected to the electricity.
2. 1 1. 1 Chronothermostat
connection
Connect the chronothermostat as indica-
ted in the boiler electrical diagram (see
paragraph 2. 1 2) after having removed the
existing bridge.
The chronothermostat to be used must be
of a class conforming to the standard EN
607301 (clean electrical contact).
2. 1 1.6 Use with different
electronic systems
Some examples are given below of boiler
systems combined with different electronic
systems. Where necessary, the parame-
ters to be set in the boiler are given. The
electrical connections to the boiler refer to
the wording on the diagrams (figs. 13-
13/a). The zone valve control starts at
every demand for heating of the zone 1 (it
is from part of the TA1 or the CR).
Description of the letters indicating the
components shown on the system dia-
grams:
M System output
R System return
CR Remote control CR 73
SE External temperature sensor
TA 1-2-3-4 Zone room thermostat
CT 1-2 Zone chronothermostat
VZ 1-2 Zone valve
RL 1-2-3-4 Zone relay
Sl Hydraulic separator
P 1-2-3-4 Zone pump
SB D.H.W. sensor
PB D.H.W. pump
IP Floor system
EXP Expansion card (code 8092233)
VM Three-way mixer valve
84
2. 1 1.2 Climatic regulator CR 53
connection (optional)
The boiler is designed for connectio to a cli-
matic regulator, supplied on request (code
8092227), for the management of a hea-
ting circuit.
The electronic card will continue to manage
information visualisation, the setting of the
sanitary set and the heating of the second
circuit, and the boiler parameters by
means of the keys on the control panel.
For installation and use of the climatic regu-
lator, follow the instructions included in the
packaging.
NOTE: Reset parameter 10 to 2 (PAR 10
= 2).
2. 1 1.3 Remote control CR 73
connection (optional)
The boiler is designed for connection to a
remote control unit, supplied on request
(code 8092226).
The remote control unit CR 73 allows for
complete remote control of the boiler,
except release of the boiler. The boiler
display will show the following message:
1 BASIC SYSTEM
SYSTEM WITH A DIRECT ZONE AND ROOM THERMOSTAT,
OR WITH A CLIMATIC REGULATOR CR 53 (Code 8092227)
OR WITH REMOTE CONTROL CR 73 (Code 8092226) AND
EXTERNAL SENSOR (Code 8094101)
CR
SE
CR
SE
TA1
M
TA
For installation and use of the remote con-
trol, follow the instructions in the package.
NOTE: Ensure PAR 10 set to 1 (PAR 10 =
1).
2. 1 1.4 External sensor connection
The boiler is designed for connection to an
external temperature sensor, supplied on
request (code 8094101), which can auto-
matically regulate the temperature value of
the boiler output according to the external
temperature. For installation, follow the
instruction in the package. For installation,
follow the instruction in the package. It is
possible to make corrections to the values
read by the drill acting on the PAR 11.
2. 1 1.5 D.H.W. sensor connection in vers.
"20-25 BFT/25 OFT"
The "20-25 BFT/25 OFT" version is provi-
ded with D.H.W. sensor (SB) linked to the
connector CN5. When the boiler is coupled
to D.H.W. storage tank, introduce the sen-
sor into the special sleeve in the D.H.W.
storage tank.
ATTENTION: The "BFT/OFT" version is
designed for connection to D.H.W. stora-
ge tank, for use ONLY FOR HEATING it is
necessary:
- to disconnect the D.H.W. sensor (SB);
- set PAR 2 and 4.
All modules are designed to be used by
qualified technical personnel.
PARAMETERS SETTINGS
If using CR 53 set parameter
10 to 2 (PAR 10 = 2)
R