19
PELLET-BURNING BOILER ECOMPACT 150-190-250-290
EN -
Rev 1.1
ELECTRICAL CONNECTION
The electric connection must only be performed by qualified staff, in compliance with all general and local safety
standards.
Check that the power supply voltage and frequency correspond to 230V
–
50 Hz.
The appliance's safety is ensured when it is properly connected to an efficient earthing system.
In the electric connection to the mains power supply, include a 6 A – Id 30 mA differential trip-switch with suitable
breaking load. The electric connections, including the earth connection, must be made after shutting off the electrical
system.
When completing the system, bear in mind that the cables must be laid in an unmovable manner and far from parts
subject to high temperatures. During the final wiring of the circuit, only use components with a suitable electrical
protection rating. Do not pass electric cables in the immediate vicinity of the flue gas pipe, unless they are insulated with
suitable materials.
KLOVER srl declines all responsibility for injury to persons and animals or damage to objects due to failure to
connect the appliance to earth or to comply with IEC specifications.
Control of any coupled boiler
If the pellet appliance is to be coupled with a previously installed boiler in the system (e.g. wall-hung gas boiler), you
must ensure that the standard boiler stops when the pellet appliance takes over the heating of the system. The electrical
setting, which is accessible from the left-hand technical compartment, intervenes on the standard boiler when the
heating circulating pump of the pellet appliance starts up so as to avoid having two boilers operating simultaneously on
the same system. The coupled boiler is however always available for the production of domestic hot water.
The two wires fitted on the left-hand technical compartment of the appliance (blue and brown wires) will have an
output voltage of 230 V when the pellet appliance pump is working, and no voltage when the pump stops.
It is therefore necessary to connect the 2 wires to a relay that will control the Room Thermostat (R.T.) input of the
coupled boiler
(see the following example)
.
Control of a possible three-way motorized valve for DHW system management
The pellet appliance is equipped as standard with a control for a possible 3-way motorised valve to be installed on the
domestic water circuit based on the selected system type (see
“System configuration”)
. In the left-hand technical
compartment of the appliance there are four wires with fastons protected by a red seal, which can be used for controlling
the valve
(see also
“wiring diagram”
)
. The four wires have different colours, and precisely:
- Blue wire = 3-WAY VALVE COMMON (Neutral 230 V)
- Black wire = SANITARY SIDE (Phase 230 V with DHW demand)
- Black wire = HEATING SIDE (Phase 230 V with no DHW demand)
- Yellow/green wire = GND
C
N
16
