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8 For wire stripping and connection requirement, refer to instruction 12.2.4.1 of indoor unit.
o Note: Isolating Devices (Disconnecting means) should have minimum 3.0 mm contact gap.
o Earth wire shall be Yellow/Green (Y/G) in colour and longer than other AC wires for safety reason.
o Always ensure all above connections compliant with national wire rules.
WARNING
This equipment must be properly earthed.
12.3.5 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.
12.3.6 Disposal of Outdoor Unit Drain Water
If a drain elbow is used, the unit should be placed on a stand which is taller than 3 cm.
If the unit is used in an area where temperature falls below 0°C for 2 or 3 days in succession, it is recommended
not to use a drain elbow, for the drain water freezes and the fan will not rotate.
12.3.7 Evaluation of The Performance
Operate the unit at cooling/heating operation mode for fifteen minutes or more.
Measure the temperature of the intake and discharge air.
Ensure the difference between the intake temperature and the discharge is more than 8°C during Cooling
operation or more than 14°C during Heating operation.
Remote
Agent
Terminal
Board
Earth wire
longer
than
others
AC wires
for safety
reason
Holder
Isolating Devices Indoor unit
DRED
(Demand
response
enabling
devices)
Indoor &
outdoor
Connection
cable
Power
supply
cord
Applicable for : CU-RZ80***
* Install the hose at an angle
so that the water smoothly flows out.
Drain elbo
7
Hose
Discharge air
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