41
If gauge needle does not move from 0 cmHg (0 MPa) to -76 cmHg (-0.1 MPa), in step
above take the following measure:
- If the leak stops when the piping connections are tightened further, continue working from step
.
- If the leak does not stop when the connections are retightened, repair location of leak.
- Do not release refrigerant during piping work for installation and reinstallation.
- Take care of the liquid refrigerant, it may cause frostbite.
10.1.6 Connect The Cable To The Outdoor Unit
1. Remove the control board cover (metal) from
the unit by loosening two screws.
2. Cable connection to the power supply through
isolating Devices (Disconnecting means).
o
Connect approved type polychloroprene
sheathed
power supply cord
3 x
1.5 mm
2
type designation 60245 IEC 57
or heavier cord to the terminal
board, and
connect the others end of the cord to
Isolating Devices
(Disconnecting means)
3.
Connection cable
between indoor unit and
outdoor unit shall be approved
polychloroprene sheathed 4 x 1.5 mm
2
flexible
cord, type designation 60245 IEC 57 or
heavier cord.
4. Connect the power supply cord and
connecting cable between indoor unit and
outdoor unit according to the diagram as
shown.
5. Secure the power supply cord and connection
cables onto the control board with the holder.
6. Attach the control board cover back to the
original position with screw.
7. For wire stripping and connection
requirement, refer to the diagram as shown.
Note: Isolating Devices (Disconnecting means) should have minimum 3.0 mm contact gap.
Earth wire shall be Yellow/Green (Y/G) in colour and longer than other AC wires for safety reason.
10.1.7 Piping
Insulation
1. Please carry out insulation at pipe connection portion as mentioned in Indoor/Outdoor Unit Installation
Diagram. Please wrap the insulated piping end to prevent water from going inside the piping.
2. If drain hose or connecting piping is in the room (where dew may form), please increase the insulation by
using POLY-E FOAM with thickness 6 mm or above.
3
2
1
t
i
n
u
r
o
o
d
n
i
e
h
t
n
o
s
l
a
n
i
m
r
e
T
1
2
3
Colour of wires (Connection cable)
Terminals on the outdoor unit
L
N
1
2
3
1
2
3
(Power supply cord)
(UNIT A)
(UNIT B)
Terminals on the Isolating devices
(Disconnecting means)
(L) (N)
Control Board Cover
(metal)
Screws
L
N
1
2
3
1
2
3
Unit B
Unit A
Power
Supply Cord
Isolating
Devices
Indoor
Unit B
Indoor
Unit A
Indoor & outdoor
connection cable
Wire stripping
No loose strand
when inserted
10
±
1
mm
WIRE STRIPPING,
CONNECTING
REQUIREMENT
5 mm
or more
Indoor/outdoor
connection
terminal board
(gap between wires)
Conductor
fully inserted
Conductor
over inserted
Conductor not
fully inserted
ACCEPT
PROHIBITED
PROHIBITED
WARNING
This equipment must be properly earthed
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