Page 24
WARNING
1.
Prepare the cable for connection:
USE THE RIGHT CABLE
•
Indoor Power Cable (if applicable): H05VV-F
or H05V2V2-F
•
Outdoor Power Cable: H07RN-F
•
Signal Cable: H07RN-F
Minimum Cross-Sectional Area of
Power and Signal Cables
Other Regions
Rated Current of
Appliance (A)
Nominal Cross-
Sectional Area (mm²)
> 3 and
≤
6
0.75
> 6 and
≤
10
1
> 10 and
≤
16
1.5
> 16 and
≤
25
2.5
> 25 and
≤
32
4
> 32 and
≤
40
6
a. Using wire strippers, strip the rubber
jacket from both ends of cable to reveal
about 40mm (1.57in) of the wires inside.
b. Strip the insulation from the ends of the
wires.
c. Using a wire crimper, crimp u-lugs on the
ends of the wires.
PAY
ATTENTION TO LIVE WIRE
While crimping wires, make sure you clearly
distinguish the Live (“L”) Wire from other wires.
2.
Unscrew the electrical wiring cover and
remove it.
3.
Unscrew the cable clamp below the terminal
block and place it to the side.
4.
Match the wire colors/labels with the labels on
the terminal block, and firmly screw the u-lug
of each wire to its corresponding terminal.
5.
After checking to make sure every connection
is secure, loop the wires around to prevent
rain water from flowing into the terminal.
6.
Using the cable clamp, fasten the cable to the
unit. Screw the cable clamp down tightly.
7.
Insulate unused wires with PVC electrical tape.
Arrange them so that they do not touch any
electrical or metal parts.
8.
Replace the wire cover on the side of the unit,
and screw it in place.
Cover
Outdoor Unit Wiring Diagram
is located on the inside of the
wire cover on the outdoor unit.
Fig. 4.6
BEFORE PERFORMING ANY ELECTRICAL
OR WIRING WORK, TURN OFF THE MAIN
POWER TO THE SYSTEM.
WARNING
ALL WIRING MUST PERFORMED STRICTLY
IN ACCORDANCE WITH THE WIRING
DIRGRAM LOCATED INSIDE THE OUTDOOR
UNIT S WIRE COVER.
’
North America
Appliance Amps (A)
AWG
10
18
13
16
18
14
25
12
30
10
Page 25
Refrigerant Piping Connection
6
Note on Pipe Length
The length of refrigerant piping will affect the performance and energy efficiency of the unit. Nominal
efficiency is tested on units with a pipe length of 5 meters (16.5ft). A minimum pipe run of 3 metres is
required to minimise vibration & excessive noise.
For special tropical area, the maximum length of refrigerant pipe should not exceed 10 meters(32.8ft)
and no refrigerant can be added(For R290 refrigerant models).
Connection Instructions –
Refrigerant Piping
Step 1: Cut pipes
When preparing refrigerant pipes, take extra care
to cut and flare them properly. This will ensure
efficient operation and minimize the need for
future maintenance.
For R32/R290 refrigerant
models, the pipe connection points must be
placed outside of room.
1.
Measure the distance between the indoor and
outdoor units.
2. Using a pipe cutter, cut the pipe a little longer
than the measured distance.
3. Make sure that the pipe is cut at a perfect 90°
angle. Refer to
Fig. 5.1
for bad cut examples.
Oblique
Rough
Warped
90°
Fig. 5.1
Refer to the table below for specifications on the maximum length and drop height of piping.
Maximum Length and Drop Height of Refrigerant Piping per Unit Model
Model
Capacity (BTU/h)
Max. Length (m)
Max. Drop Height (m)
R410A Inverter Split Air
Conditioner
< 15,000
25 (82ft)
10 (33ft)
≥
15,000 and < 24,000
30 (98.5ft)
20 (66ft)
≥
24,000 and < 36,000
50 (164ft)
25 (82ft)
≥
36,000 and
≤
60,000
65 (213ft)
30 (98.5ft)
