16
1.9
Wiring diagram
L
LC
B1
KAI
E/I
VD
OF
OF1
SW
SW1
SAN
AH
AN
N1
NO1
VAT
K
AVA
T
K
AVA
T
R1
B3
SE
SE1
SAN1
MPDC
QU2
KAB
KAB
PI
PS
KAI
KAI
QF
TS
KAB
QU1
U1
OR1
OR1
CROS
S-SEC
TION OF 230V AUXILIARY WIRES = 1.0mm2
BLA
CK
BROWN
BRO
WN
2C. EXAHANGE 10A - 230
2C. EXAHANGE 10A - 230
2C. EXAHANGE 10A - 230
BROWN
BROWN
BROWN
BLACK
BLUE
BLUE
BL
UE
WHITE
WHITE
WHITE
Summer=CL
OSED
Wint
er=OPEN
vie
w of
the BA
CK
BL
UE
BOILER
SOLAR KIT PO
WER SUPPL
Y
BL
UE
SE
TA
1
TA
KEY
QU1 Boiler protection
QU2 Auxiliary protection
KAB Low temperature relay
KAI
Integration relay
KAVAT High temperature valve relay
TS
Low Temperature System Safety Thermostat
PI
Low Temperature System Pump
VAT
High Temperature Valve
E/I
Summer/winter selector
B1
DHW Adjustment Sensor
B3
Low Temperature zone Sensor
SE
External Sensor (optional)
PS
Domestic Hot Water Pump
VD
DHW/SYS Diverter valve
QF
Thermal magnetic circuit breaker (to be fitted by the installer)
U1
MLC30 zone board
MPDC Heat Pump Terminal Board
OR1 Time clock
TA
High temperature thermostat
TA1
Low temperature thermostat
