tions included in the packaging.
NOTE: Reset parameter 10 to 2 (PAR 10
= 2).
2.7.3
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-
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)
SE
TA
trol, follow the instructions in the package.
NOTE: Ensure PAR 10 set to 1 (PAR 10 =
1).
2.7.4
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. It is possible to
make corrections to the values read by the
drill acting on the PAR 11.
2.7.5
Use with different
electronic systems
Some examples are given below of boiler
systems combined with different electronic
systems. Where necessary, the parame-
CR
CR
SE
TA1
M
R
ters to be set in the boiler are given. The
electrical connections to the boiler refer to
the wording on the diagrams (fig. 11). 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
R
CR
SE
TA 1-2-3-4
CT 1-2
VZ 1-2
RL 1-2-3-4 Zone relay
Sl
P 1-2-3-4
SB
PB
IP
EXP
VM
PARAMETERS SETTINGS
If using CR 53 set parameter
10 to 2 (PAR 10 = 2)
System output
System return
Remote control CR 73
External temperature sensor
Zone room thermostat
Zone chronothermostat
Zone valve
Hydraulic separator
Zone pump
D.H.W. sensor
D.H.W. pump
Floor system
Expansion card ZONA MIX (code
8092234)/INSOL (code 8092235)
Three-way mixer valve
ES
PT
ENG
89