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Installation
(1) Installation Of VCU
• The unit should be installed in accordance with all national and local codes and regulations which govern the
installation of this type of equipment.
• The VCU unit must not be installed with any duct work on the air discharge side. The outdoor fan is a propeller type
and is not designed to operate against any additional external static.
• The maximum & minimum operating conditions must be observed to assure the system to maximize the capacity with
minimum service. Please refer to “Operating range”.
Installation Clearance
Outdoor units should be installed such that there is no short circuit of the hot discharge air or obstruction to smooth air
flow.
Please allow 610 mm clearance between units for proper air flow.
MODEL A B C D
ALL VCUs 305 mm 305 mm 1219 mm 762 mm
(2) Refrigerant Piping
Maximum Pipe Length And Maximum Number Of Bends
• When the pipe length becomes too long, both the capacity and reliability drop. As the number of bends increases,
system piping resistance to the refrigerant flow increases, thus lowering the cooling capacity, and as the result the
font compressor may become defective. Always choose the shortest path and follow the recommendation
as tabulated below:
MODEL
DATA
MVCU 025A MVCU 030A MVCU 035 / 040A MVCU 050A MVCU 060A
Max. Length, L 15m 35m 35m 35m 35m
Max. Elevation, H 8m 15m 15m 15m 20m
Max. No. of bends 10 10 10 10 10