56
X7 X6 X5 X4 X3 X2
TA
TA2
OT o TA1
sonda
Ext
.
sonda Boll.
caldaia
sonda Boll.
solare
sonda Coll.
Solare
sonda
Amb1
sonda
Amb2
N
F
n.c.
F
n.a.
comunicazione
con esterno
Contatto TA1 o
Open-Therm
Contatto
TA2
Sonda 10KΩ a
25°C
β
3977
Sonda 10KΩ a
25°C
β
3435
Sonda
PT1000
Sonda
PT1000
Sonda 10K
Ω
a 25°C
β
3977
Sonda 10K a
25°C
β
3977
GND 485A 485B +5V
relè liberamente
programmabile co
φ
1
3 1 2
7
1
CN_E
CN_H
CN_A
ACC1
CN_I
CN_M
CN_L
CN_J
CN_D
CN_B
CN_C
JP1
X14
bn
bn
wh
wh
pk
pk
bu
bu
bk
bk
pk
pk
or
or
rd
rd
wh
wh
wh
or
bn
bn
rd
rd
rd
bu
pk
bk
bn
rd
1
2
3
4
rd
bu
pk
bk
bn
IN
GND
OUT
bn
bu
X4
X3
X5
SCHEMA ELETTRICO DI
CONNESSIONE
1
2
3
4
CN_L
CN_I
CN_M
CN_A
CN_H
CN_E
CN_C
CN_D
230V a.c
Conn_F
Conn_E
Conn_C
Conn_B
Conn_A
Conn_D
CN_J
rd
pk wh bk
rd
pk
wh
bk
or
pk
wh
bk
bn
bn
bu
bu
0SCHEMOD27
RETRO 0SCHEINT00
QUATOUCH00
1
1
Resistenza
10KΩ
1
4
1
5
X2
bu
bn
ygn
bu
bn
bk
P
VG
MDV
N bu
Risc. bk
Sanit. bn
V
DK
SF SR1 SR2
TF
E
SRT
bu bn bk
bu
bn
bu
bn
bn
bu
ygn
ygn
ygn
or
pk
wh
bk
bn
bn
bu
bu
bn bn wh wh pk pk rd rd bu bu bu bu
pwm
3.6.2.
Wiring diagram for forced circulation solar system with CH only boiler
Parameter setting
P03
P17
P18
3
2
1
SONDA BOLLITORE
SOLARE
SONDA BOLLITORE
CALDAIA
ITACA
KRB 12 - 24
SONDA ESTERNA
MORSETTI 5 - 6
MORSETTI 3 - 4
TERMOSTATO
AMBIENTE
RETE IDRICA
MORSETTI 7 - 8
MORSETTI 9 - 10
MORSETTI 11 - 12
MORSETTI 21 - 22 - 23
fig. 22
3.6.3.
Multifunction relay connecting diagram
fig. 23
Contact
TA2
Contact TA1 or
OpenTherm
Probe 10KΩ
at 25°C β3977
Probe
PT1000
Probe
PT1000
Ambient
probe 2
Ambient
probe 1
Boiler water
cylinder
probe
Resistance 10KΩ
External
probe
Connect.
OT or TA1
Relay which can be freely
programmed coφ=1
External
communication
Probe 10KΩ
at 25°C β3435
Probe 10KΩ
at 25°C β3977
Probe 10KΩ
at 25°C β3977
Solar
collector
probe
Boiler solar
probe
a
AMBIENT
THERMOSTAT
EXTERNAL PROBE
TERMINALS 5 - 6
TERMINALS 7 - 8
TERMINALS 21 - 22 - 23
TERMINALS 3 - 4
TERMINALS 11 - 12
TERMINALS 9 - 10
BOILER SOLAR
PROBE
BOILER WATER
CYLINDER PROBE
DOMESTIC WATER SYSTEM
ITACA
KRB 12-24-28-32