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7
Remove the valve caps of both of the 2-way valve and 3-way valve. Position both of the valves to "OPEN"
using a hexagonal wrench (4 mm).
8
Mount valve caps onto the 2-way valve and the 3-way valve.
Be sure to check for gas leakage.
o
If gauge needle does not move from 0 cmHg (0 MPa) to -76 cmHg (-0.1 MPa), in step 3 above take the
following measure:
-
If the leak stops when the piping connections are tightened further, continue working from step 3.
-
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.
12.2.5
Connect the Cable to the Outdoor Unit
(FOR DETAIL REFER TO WIRING DIAGRAM AT UNIT)
1
Remove the control board cover from the unit by loosening the screw.
2
Cable connection to the power supply through Isolating Devices (Disconnecting means).
Connect approved type polychloroprene sheathed power supply cord 3 x 1.5 mm
o
2
2.5 mm
(2.0 ~ 2.25HP) 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
2
1.5 mm
flexible cord, type designation 60245 IEC 57 or heavier cord. Allowable connection cable length of
each indoor unit shall be 30 m or less.
4
Connect the power supply cord and connection cable between indoor unit and outdoor unit according to the
diagram below.
T
r e
m
n i
a
s l
o
n
h t
e
n i
d
o
r o
Colour of wires (connection cable)
Terminals on the outdoor unit
(Power supply cord)
Terminals on the isolating devices
(Disconnecting means)
5
Secure the power supply cord and connection cable 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 instruction 12.1.6.1 of indoor unit.
•
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.
12.2.6
Pipe 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.
u
t i n
1
L
N
1
(L) (N)
WARNING
This equipment must be properly earthed.
2
3
2
3
Earth Wire
longer than
others
AC wires
for safety
reason
48
Terminal
Board
Earth Wire
longer
than
others
AC wires
for safety
reason
Holder
Power supply
Indoor and outdoor
cord
connection cable
Isolating
Indoor Unit
Devices
2
(1.0 ~ 1.5HP) or 3 x
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