2 | INSTALLATION
19
1
Wire retainer
2
Indoor unit connection A
3
Indoor unit connection B
4
Power supply
- remove the wire retainer
- make electrical connections according to the diagrams below
MODELLO 18000-2
A
Outdoor unit
B
Indoor unit
C
System main switch
It is compulsory to use ring crimp terminals to connect to the
terminal board.
For the sizing of the electrical power cables and safety devices, use the
following table:
The cable sections specified in the table are minimum requirements.
The correct size must be calculated taking into account the actual
length, the type of routing and other conditions set by the existing
regulations.
Model
18000-2
Electrical characteristics
Power supply
V/Ph/Hz
220-240/1/50
Protection
factor
IP
X4
Protection
against short
circuit
A
25
Protection
against
overcurrent
A
15
Ground
protection
A
-
Residual
current
mA
3
Starting
current
A
1
Power cable
Tipo
H07RN-F
Power cable
n x mm
3 x 2.5
Signal cable
n x mm
4 x 1
- fasten the wires with the wire retainer
- complete the electric connections and refit all components by
performing the described operations in reverse order
Check that:
- the characteristics of the power network are suitable for the
device usage values
- the power supply voltage corresponds to the nominal value +/-
10%, with a maximum phase imbalance of 3%
- all of the power network disconnect devices must be equipped
with contact openings (3 mm) in order to allow for complete
disconnection, in accordance with the conditions required
Mandatory items:
- have an omnipolar magneto-thermal circuit breaker and a
padlockable disconnecting switch compliant with the IEC-EN
Standards (contact opening of at least 3 mm), with adequate
breaking power and differential protection, installed near the
equipment
- connect the device to a properly functioning earthing system
- make sure that the electrical power supply system is compliant
with the current national safety standards
- make sure that the power supply line impedance is consistent
with the unit's power consumption, as indicated on the unit's
data plate
- for any electrical intervention, always refer to the wiring diagrams
contained within this booklet
- take anti-static precautions in case of weather conditions where
humidity is less than 40%
Electric connections shall be made in compliance with national
regulations.
Avoid placing the connection cables less than 1 metre away from
radio and video systems.
Avoid using mobile phones.
It is forbidden to earth the device together with pipes, lightning
conductors or the earthing system of a telephone line. Using an
improper earthing system can cause electric shocks.
It is forbidden to connect other devices in parallel to the unit.
