45
6155049
Max. pressure
MPa
0.3 (3 bar)
Min. pressure (for the sealed unvented system)
MPa
0.05 (0.5 bar)
Outlet temperature
°C
20 – 85
Max. temperature
°C
100
Dimensions (height × width × depth)
mm
716 × 316 × 235
Weight
kg
~20.5
Boiler connections
G ¾" (female thread)
Expansion vessel
l
~5
IP rating
IP 22
Maximum number of additional heating circuits
8
Specification
Boiler
4/6/8
4/6/8
Rated output
kW
4
6
8
4
6
8
Rated voltage
230 V~
400 V 3N~
Rated current
A
17.4
26.1
34.8 3 × 5.8 3 × 8.7 3 × 11.6
Min. cross-section of the power cable
mm
2
3 × 2.5
3 × 4
3 × 6
5 × 2.5
Max. cross-section of the power cable
mm
2
5 × 16
Max. permissible mains impedance
Ω
0.27
0.17
0.15
0.27
Boiler
12/16/20/24
Rated output
kW
12
16
20
24
Rated voltage
400 V 3N~
Rated current
A
3 × 17.4
3 × 23.1
3 × 28.8
3 × 34.6
Min. cross-section of the power cable
mm
2
5 × 2.5
5 × 4
5 × 6
Max. cross-section of the power cable
mm
2
5 × 16
Max. permissible mains impedance
Ω
0.27
0.13
Boiler
Heating circuit module
Dimensions
70 × 90 × 58 mm
Supply
~230 V 50 Hz max. 170 VA
Power protection
1 A
Range of heating media in
heating circuit
Radiator heating
20 – 80 °C
Underfloor heating system
20 – 55 °C
Outputs
Pump
~230 V 50 Hz max. 150 VA
Valve servomotor
~230 V 50 Hz max. 20 VA
Inputs
Bus (computer)
RS485
Temperature sensor, valve outlet
NTC 10K (KOSPEL WE-019/01)
MA Master appliance
Potential-free input
Installation sequence
