5.5
Electric schemes of connection
All quoted cross-sections of cables are minimal.
Cross-sections that should be placed depend on
length of the line and placing mode.
Cable cross-sections should be dimensioned according to
local regulations
3P A
Three-pole automatic fuse
DA
Remote power trigger
ST
Safety thermostat (Klixon)
RTH
Room thermostat
RS 1, RS 2, RS 3
Connecting clamps
of room thermostat
WARNING: voltage 5V DC
P1
Main switcher ON/OFF
CP
Circulation pump
RK1, RK2, RK3
Relay contact (for
9,12
and
18
kW)
K1, K2, K3
Contact (for
24
kW and
27
kW)
G1
Heater
-3×1500W for boiler of
9
kW
-3×2000W for boiler of
6
,
12
,
18
kW
-3×2667W for boiler of
24
kW
-3×3000W for boiler
27
kW
G2
Heater
-3×1500W for boiler of
9
kW
-3×2000W for boiler of
12
,
18
kW
-3×2667W for boiler of
24
kW
-3×3000W for boiler of
27
kW
G3
Heater
-3×2000W for boiler of
18
kW
-3×2667W for boiler of
24
kW
-3×3000W for boiler of
27
kW
LCTR 2
Microprocessor thermoregulator
OS 1
Electric fuse 230V T500mA
OS 2
Electric fuse 230V T2A
OS 3
Electric fuse 24V T500mA
OS 4
Electric fuse 8V T500mA
KON1
Supply connector (230V AC)
KON2
Circulation pump connection
K 101
Pressure sensor connection
SP
Pressure sensor
K 102
Temperature sensor connection
TS
Temperature sensor
K 105
Interface connection (LCI2)
K 106
Room thermostat connection (RTH)
RE 1
- Heater relay (for boiler of 6kW)
- Contact K1 turn on relay (for
boiler of all other power)
RE 2
- Heater relay (for boiler of 6 kW)
- Contact K2 turn on relay (for
boilers of all other power)
RE 3
- Heater relay for boiler of 6kW
- Contact K3 turn on relay (for
boilers of all other power)
Electric connecting
Legend
Table
4:
Legend of connecting schemes
Legend
