Mini VRF Heat Pump Outdoor Unit
6 720 874 421 (2017/04) ZA
ELECTRICAL WIRING | 11
NOTE
The air conditioning units can be connected to a Central Control
Monitor (CCM). Before operation, ensure the wiring is completed and
all internal and external units are addressed.
5.2 Indoor Unit Wiring
■
Power Supply
Table 5-2
Capacity(KW)
1.8~16
Indoor
Unit
Power
Phase
1-Phase
Voltage and Frequency
220-240V~ 50Hz
Power Wiring Size
Wire size must comply with local
standards
Circuit Breaker (A)
16
Indoor Unit/Outdoor Unit
Signal Wire (mm
2
)
3-core shielded wire
3X0.75
Single phase indoor unit
Wire controller
The reserved wire control
function is indicated in broken
line table, users can purchase
the wire controller when
necessary.
To wire controller
Display
board
WHITE
BL
UE
BL
AC
K
P Q
X Y E
YELL
OW
GRA
Y
To Outdoor
COMM.BUS
To Central Control
Monitor (CCM)
COMM. BUS
Power Supply
Y/G
N
L
Please use 3-core shielded wire, and
connect the shielded layer to Grounding
XT1
XT3
BL
AC
K
E
Fig. 5-5
1
Communication wires are polarity sensitive. Three core shielded
cable must be used to prevent interference. Shielded layers must be
connected to ground.
2
The control between units is a BUS type. Units addresses must be set
during commissioning.
CAUTION
Indoor/Outdoor unit signal wire is a low voltage circuit. Do not
connect signal wires to electrical power voltage terminals.
NOTE
The wire diameter and continuous length has been calculated and
cannot have more than a 2% fluctuation in voltage.
Indoor unit power supply wiring
Indoor Power Supply
Circuit Breaker
Manual swtich
Wire Distribution Box
Indoor Unit
Fig. 5-6
CAUTION
1 Ensure the correct wires correspond with the correct pipework
installation.
2 Ensure power cables and signal cables are installed in separate
containment. A minimum distance of 300mm when power capacity
output is less than 10A and a minimum of 500mm for a power
capacity output over 10A.
Indoor/Outdoor unit signal wiring
Outdoor Unit
Indoor/Outdoor
Unit Signal Wire
(open)
In broken line table, users can purchase the wired
controller when necessary.
Fig. 5-7
5.3 Function setting dial switches instructions
•
SW3(SW-1) definition: Auto Addressing Dial
