Electrical Wiring - Sime MURELLE EV Serie Manual Del Usuario

2. 1 1

ELECTRICAL WIRING

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.
The boiler must be connected with an effi-
cient grounding system. SIME shall not
be held liable for injury or damage resul-
ting from failure to ground the boiler.
ATTENTION: Before every intervention 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 elec-
trical 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 1.2 Climatic regulator CR 53
connection (optional)
The boiler is designed for connectio to a cli-
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 - 13/b).
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 from 1 to 14:
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 ZONA MIX (code
8092234)/INSOL (code 8092235)
VM Three-way mixer valve
matic regulator, supplied on request (code
8092227), for the management of a hea-
ting circuit. The electronic card will conti-
nue to manage information visualisation,
the setting of the sanitary set and the hea-
ting of the second circuit, and the boiler
parameters by means of the keys on the
control panel. For installation and use of
the climatic regulator, follow the instruc-
tions 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:
For installation and use of the remote con-
trol, follow the instructions in the package.
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
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"
The "20-25 BFT" version is provided with
D.H.W. sensor (SB) linked to the connector
CN5. When the boiler is coupled to D.H.W.
storage tank, introduce the sensor into the
special sleeve in the D.H.W. storage tank.
ATTENTION: The "BFT" version is desi-
gned for connection to D.H.W. storage
tank, for use ONLY FOR HEATING it is
necessary:
- to disconnect the D.H.W. sensor (SB);
- set PAR 2=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
ES
PT
ENG
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