Sanyo SGP-M2 Manuel D'installation page 8

(7) Check the room limit concentration.
With a multi-type system, the total length of refrigerant tubing is longer, and the almost of additional refrigerant
charge is more. For this reason, there is danger that refrigerant leaking into a small room may cause persons in
the room to be asphyxiated. The room limit concentration is determined as follows according to the "Installation
Standards for Refrigeration and Air Conditioning Equipment (KHK-S0010)" - voluntary standards created by the
High Pressure Gas Safety Institute of Japan.
Total amount of refrigerant charge (kg) for the system
≤ Limit concentration 0.3 kg/m
3
3
Smallest room volume (m ) where an indoor unit is installed
No special measures are required if the concentration is at or below the limit concentration of 0.3 kg/m 3 .
3
However, special measures are required if the concentration is above 0.3 kg/m .
GB - 8