ELECTRICAL CONNECTIONS
BETWEEN INDOOR AND
OUTDOOR UNITS
1. To connect the indoor unit with the outdoor unit use the
following electrical cables, protected for outdoor use:
(see Fig. 14a)
Multi wire cable :
5 wires x 2.5 mm²
Twin wire cable:
2 wires x 0.5
SINGLE PHASE MODELS
Cooling and heating model:
mm² - For low voltage.
Multi wire cable :
4 wires x 2.5 mm².
Twin wire cable:
2 wires x 0.5 mm² - For low voltage.
(see Fig.14b)
The main power supply (5) will be connected to the outdoor
unit.
(see Fig. 14c)
The main power supply electrical cable must be of
H05VV-K5G type and contain 5 x2.5 mm² conductors,
connected to a thermally protected circuit breaker 3 x 12.5A.
2. Prepare inter-unit cable ends for connections.
3. Connect the cable ends to the terminals of the indoor and
outdoor unit, as shown in Fig. 14a, Fig. 14b and Fig. 14c.
Be sure to match the colored wires with the numbers shown
on the indoor and outdoor unit terminal boards.
4. Connect the yellow/green ground wire to the ground terminal
screw.
5. Secure multiple wire power cable with the cable clamps.
6. Fasten the twin wire cable to the power cable with cable ties.
Cooling only model:
For units above 10 KW
THREE PHASE MODELS
Fig. 13
1. Terminals 2. Cover
3. Cable tie
NOTES:
1. The wire color codes can be selected by the installer.
2. Wires leading to terminals 8 and 9 must be in a separate twin
wire cable, otherwise the electronic controls will be subject to
operational malfunctions.
3. For cooling only model. Wire (5) should not be connected to
terminal No. 5.
4. In some models the twin wire cable is factory-connected to the
indoor unit.
Fig. 14a/14b/14c
1. Outdoor unit
2. Terminal board
3. Control cable
4. Indoor unit
5. Power supply
6. Electrical interconnecting cable
7. Terminal board male/female
Fig. 13
6
Fig. 14c
Fig. 14a
Fig. 14b
