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Installation Procedure
2 Be sure to use insulator which is thick enough to cover the
refrigerant tube to protect the condensate water on the outside
of pipe falling onto the floor and the efficiency of the unit will be
better.
3 Cut off any excess foam insulation.
4 Be sure that there must be no crack or wave on the bended area.
5 It would be necessary to double the insulation thickness(0.39
inch (10 mm) or more) to prevent condensation even on the
insulator when if the installed area is warm and humid.
6 Do not use joints or extensions for the pipes that connect the
indoor and outdoor unit. The only permitted connections are
those for which the units are designed.
Gas refrigerant port
NOTE
• The designs and shape are subject to change according to the
model.
12
English
Liquid refrigerant port
Drain hose connection port
Step 8 Performing the gas leak test
Pressure check the refrigerant system using high pressure
nitrogen in order to detect basic refrigerant leaks. Before
performing the vacuum process and releasing the factory R-410A
charge into the refrigerant pipes, it is the responsibility of the
installer to pressurize the whole system with nitrogen (using a
cylinder with pressure reducer) at a pressure above 580.2 psi (4
Mpa) (gauge).
Insulator
Gas refrigerant port
Liquid refrigerant port
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