DIY Single Zone Installation Manual 2020

Page 17
Step 6: Connect indoor power cable
The cable enables communication between
the indoor and outdoor units. You must first
choose the right cable size before preparing it for
connection.
Cable Types
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
North America
Other Regions
Rated Current of
Nominal Cross Sectional
-
Appliance (A)
2
Area (mm )
> 3 and ≤ 6 0.75
> 6 and ≤ 10
> 10 and ≤ 16 1.5
1.0
> 16 and ≤ 25 2.5
> 25 and ≤ 32 4
> 32 and ≤ 40 6
CHOOSE THE RIGHT CABLE SIZE
The size of the power supply cable, signal
cable, fuse, and switch needed is determined
by the maximum current of the unit. The
maximum current is indicated on the nameplate
located on the side panel of the unit. Refer to
this nameplate to choose the right cable, fuse,
or switch.
Indoor Unit
Installation
Appliance Amps (A)
AWG
10 18
13 16
18 14
25 12
30 10
TAKE NOTE OF FUSE SPECIFICATIONS
The air conditioner s circuit board (PCB) is
designed with a fuse to provide over current
protection. The specifications of the fuse
are printed on the circuit board, such as:
T3.15A/250VAC, T5A/250VAC, etc.
1. Prepare the cable for connection:
WARNING
IN ACCORDANCE WITH THE WIRING
DIAGRAM LOCATED ON THE INSIDE OF
THE INDOOR UNIT S WIRE COVER.
,
,
Connector
P
ower
supply
Indoor unit
Y/G
Outdoor unit
L N1
3
2
Hold the indoor plug connector and insert the
mating plug connector located on the outdoor
unit until it fixed with a clicking sound. The Y/G
wire should be connected individually. Secure
the cable onto the control board with the cord
clamp. See Fig.4.9 for example:
Fig. 4.9
NOTE ABOUT WIRING
THE WIRING CONNECTION PROCESS MAY
DIFFER SLIGHTLY BETWEEN UNITS
ALL WIRING MUST PERFORMED STRICTLY