2 System installation
2.1.11 Electrical connection
The entire system-internal wiring is executed in the factory or is executed plug-ready by installation personnel.
Locally, only the mains connection and the boiler-external cabling of all system parts (e.g. heating circuit pumps,
mixing valves, sensors, communication devices, remote switches, analogue room control units, etc.), and if there is
a network, the bus cabling of the heating circuit expansion module and the digital room control unit must be cabled
by a qualified electrical installation company. A single-phase mains connection (230 VAC, fusing 13 A) is required.
We recommend installation of a type “C” surge arrester near the house distribution board as lighting protection.
The applicable directives, particularly EN 602041-1, Electrical equipment of machines – general requirements, must
be complied with when executing the installation work. In addition ensure that the possibility of damage to electrical
system components due to heat radiation is excluded.
Always unplug the mains plug or switch off the main switch before opening the junction
box .
2.1.11.1 Electrical connections of the system
Mains connection:
Single-phase connection (230 VAC, fusing 13 A)
Required
connections
to be provided
by customer:
Supply 3-pole (L/N/PE) / 13 A
Type C surge arrester at the distribution board of the house
(recommended as lightning protection)
Escape switch ( “stop switch”
)
Scope of delivery variants
Without
heating circuit
(Boiler I/O
board without
heating circuit)
1 boiler I/O board without released heating circuit
s
1 safety thermostat
completely cabled and mounted
1 boiler temperature sensor
1 DHWC sensor (pin sensor Ø 6 mm)
2 buffer sensor (pin sensor Ø 6 mm)
1 return flow sensor (contact sensor)
Optional
1 heating circuit
(Boiler I/O board with
1 heating circuit)
1 boiler I/O board with 1 released heating circu
it
1 safety thermostat
completely cabled and mounted
1 boiler temperature sensor
1 DHWC sensor (pin sensor Ø 6 mm)
2 buffer sensor (pin sensor Ø 6 mm)
1 return flow sensor (contact sensor)
1 outdoor sensor with enclosure
in addition for heating circuit configuration
1 forward flow sensor (contact sensor)
1 analogue room control unit +
room sensor
or
1 digital room control unit +
room sensor
(Room control units
must be ordered for this.)
MA-Easyfire 10.2008_EN.indd 28MA-Easyfire 10.2008_EN.indd 28 30.03.2009 13:30:00 Uhr30.03.2009 13:30:00 Uhr
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