37MGHAQ: Installation Instructions
Manufacturer reserves the right to change, at any time, specifications and designs without notice and without obligations.
7
For R454B refrigerant charge amount and mini-
mum room area
Requirements for room area limits using R454B refrigerant in unventilat-
ed areas: Our multiple systems are all confirmed to meet the requirement
of Enhanced Tightness Refrigerating Systems. Units installed at a height
not exceeding 1.8m above the ground are usually equipped with refriger-
ant sensor, which minimum room area (Amin) of operating or storage
should be determined according to refrigerant charge (mC) or releasable
charge (mrel) of system, as specified in the Table 1. The table is also ap-
plicable for those units without refrigerant sensor but its installation
heights are between 5.9ft/1.8m and 7.2ft/2.2m.
NOTE: The calculation is based on the standard connection pipe
length of 24.6ft/7.5m for each indoor units, an extra
releasable charge should be added for per meter exceeding
24.6ft/7.5m.
NOTE: The installation must be performed in accordance with the
requirement of the local and national standards. The
installation my differ slightly.
A minimum pipe run of 10 feet (3 meters) is required to minimize
vibration and excessive noise.
CAUTION
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