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3-2. Use R410A exclusive cylinder only.
● When charging with a refrigerant cylinder, use an
electronic scale for charging refrigerant. In this
case, if the volume of refrigerant in the cylinder
becomes less than 20% of the fully-charged
amount, the composition of the refrigerant starts
to change. Thus, do not use the refrigerant if the
amount in the charging cylinder is less than 20%.
Also, charge the minimum necessary amount to
the charging cylinder before using it to charge the
air conditioning unit.
Valve
Single valve
Charge liquid refrigerant with
cylinder in up-side-down position.
Single valve (with siphon tube)
Charge with cylinder in normal position.
Liquid
Valve
Liquid
Configuration and characteristics of cylinders
Fig. 1
Fig. 2
07-115 SSHP_II 5/7/07 3:59 PM Page 5