SYSVRF2 IM

23
Indoor power supply
Leakage protector
Manual switch
Branch box
Indoor unit
Fig.6-2
All the indoor units in a system should be tied into the same
power circuit with the same power supply.
Power wiring and communication wiring should not be run in
the same conduit. If the power supply is less than 10A, a
separation of at least 300mm between power wiring and
communication wiring conduits should be maintained; if the
power supply is in the range 10A to 50A then a separation of
at least 500mm should be maintained.
Make sure to set address to each outdoor unit for the
combination outdoor units.
CAUTION
1
9
2
10
3
11
4
12
5
13
6
14
7
15
8
16
Indoor unit power supply wiring
Fig.6-4
The attached cable clip includes 2 parts: the base part and the
upper cover part. The base has been installed in the electric
control box, located under the terminals. The upper cover is put
together with the other accessories as an attachment.
Both the front and back side of the cable clip can be used to
groove the wire. Choose the appropriate way to groove the wire
according to different sizes of power wire.
The upper cover of the cable clip must be fixed with three
M4*30mm screws.
When the cross-section area of the power wire is less than 10 mm
2
,
groove the power wires as a whole. When stripping the outermost
insulation layer, ensure the sum of the stripped length and terminal
length are less than 70 mm. Shown as figure 6-4:
When the cross-section area of the power wire is more than 10
mm
2
, groove the power wires separately. When stripping the
outermost, ensure the sum of stripped length and terminal length
is between 100 mm and 200 mm, as shown in figure 6-5:
CAUTION
First, connect the power wires and the terminals, and then groove
the wires or it’s hard to install.
When installing the main power wire, strip the appropriate length
of the insulation layer according to the grooving method and
position of the cable clip.
When installing the three fixed screws, the twisting length should
ensure displacement is less than 2 mm when applying 100 N force
onto the wires. Twisting to the end too hard may damage the
power wire protective cover.
Fig.6-5
6.2.2 Power supply cable clips installation
To 380-415V 3N~ 50Hz
Fig.6-3
6.2.1 Outdoor unit 3-phase power supply terminals wiring
connection
A B C N
A B C N
A
A B C N
B C N