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d) For M4AC080C(R) to M4AC150C(R), if good ventilation cannot be guaranteed when unit being installed indoors, it is
advisable to induce discharge air from air outlet to outdoors by installing duct which is as short as possible.
e) Support unit base up to create a space above foundation for ensuring free water drainage, and the stable foundation
with level surface must be sufficiently durable against the unit weight.
Uni t
Uni t Suppor t er
Dr ai n Di t ch
f) The location must not be susceptible to dust or oil to avoid condenser coil being choked by the
contaminant. As the general safety precaution, it is advised that no flammable danger gas should be
located near to the unit.
g) It is advised to have sufficient clearance around the unit for proper condenser air flow and to facilitate
access for maintenance.( see clearance shown in figure below)
Unit supporter
Unit
Drain Ditch