6
ELECTRICAL CONNECTIONS
BETWEEN INDOOR AND
OUTDOOR UNITS
Fig. 17
1. Terminal 2. Cover 3. Cable tie
1. To connect the indoor unit with the outdoor unit
use the following electrical cables, protected for
outdoor use:
Cooling and heating model:
Multiple wire cable (240V, 50Hz)
2
5 wires x 1.5 mm - For units up to 1.8kW input
2
2 wires x 0.5 mm - for low voltage
Cooling only models:
Multiple wire cable (220 - 240V, 50Hz)
2
4 wires x 1.5 mm
2. Prepare inter unit cable ends for connection.
3. Connect the cable ends to the terminals of
the indoor and outdoor units, as shown in
Fig 20.
Be sure to match the colored wires with the
numbers shown on the indoor and outdoor unit
terminal board.
4. Connect the yellow / green ground wire to the
ground terminal screw. In the indoor unit, shape
a loop and clamp with cable tie, as shown in
Fig 20a
5. Secure the multiple wire power cable with the
cable clamps.
6. Fasten the twin wire cable to the power cable
with cable ties.
2
5 wires x 2.5 mm - For units up to 3.5kW input
Twin wire cable
- For units up to 1.8kW input
2
4 wires x 2.5 mm - For units up to 3.5kW input
Twin wire cable
2
2 wires x 0.5 mm - for low voltage
NOTES
:
1. The wire color code can be selected by the
installer
2. Wires leading terminal (8) and (9), must be
in a separate twin wire cable, otherwise the
electronic controls will be subjected 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.20
1. Terminal
2. Ground wire
3. Control cable
4.
5. Indoor coil.
Screw cover
Cable clamp
A. OUTDOOR B. INDOOR
Fig. 17
Fig. 20
Fig. 19
Fig. 19
Fig. 18 A. OUTDOOR B. INDOOR
MULTIPLE WIRE POWER CABLE
TWIN WIRE LOW VOLTAGE CABLE
50
For unit up to 3.5kW (11900 BTU/Hr)
Cooling capacity, refer Fig20a.
For unit above 3.5kW (12000 BTU/Hr)
Cooling capacity, refer Fig20b.
Fig. 20b
Fig. 20a
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