ELECTRICAL CONNECTION FOR 3PH DIGITAL SCROLL UNITS
Since this air conditioner requires connection of high and low voltage between the units follow very
carefully after electrical installation instructions bellow.
S
U
P
P
L
Y
COM+
L
N
COM-
COM+
COM-
L
N
L1
N
L3
L2
L1
L2
L3
N
ELECTRA
1
RS-485
GND
12v
T
O
I
N
D
O
O
R
2
3
6x1.5
10
4
5
6
7
8
9
11
12
Outdoor Unit
Indoor Unit
Figure 20. Three Phase Units: Electrical Scheme
1. Outdoor unit 7. Wired control (optional)
2. Terminal board 8. Power supply
3. Interconnecting cable
9. Semi automatic breaker (by installer)
4. Indoor unit 10. Indoor safety breaker 10A
5. Display control unit
11. Terminal board
6. Wireless remote control 12. Power supply connection board
13. Power supply cable
AFTER CONNECTIONS
:
After the unit is connected to the power supply the outdoor unit controller will start a self test for
correct phase order and after a few seconds GREEN LED (1) will light on. If the RED LED (2) and
GREEN LED (3) will blink check the power connection or phase order to be correct. The unit protects
the compressor and will not start the unit function with phase missing or wrong phase order.
If after connection the leds start blinking after 30 seconds, connections between indoor and outdoor
units is incorrect, find and repair the problem.
WARNING:
Connection of Phase or neutral to COM+ or COM-may cause sever damage to
the controllers
Use supply wire sizes as per local electrical codes and regulations.
16
Model
Circuit Breaker
(without Heating Element)
Maximum Current
DSD 40 RCA
3 x 16 A
3 x 10.2
DSD 50 RCA
3 x 16 A
3 x 11.6
DSD 60 RCA
3 x 20 A
3 x 17.0
Three Phase units Power to Outdoor Unit
3
GaS]TaVWSZRSRQOPZST]`bVSQ][[c\WQObW]\eW`W\UOaabO\RO`R
