
VRF-SVN33A-EN 17
Refrigerant Piping
Figure 12. Y-joint and distribution header connection
Storing Refrigerant Piping
To prevent foreign materials or water from entering the pipe, storing method and sealing method
(especially during installation) is very important. Apply correct sealing method depending on the
environment (see Table 10).
Evacuating Refrigerant
The mini outdoor unit ships with the following amount of refrigerant. Evacuate the unit of all ship-
with refrigerant before installing refrigerant piping.
Indoor units
Distribution header
Mini outdoor unit
Table 10. Refrigerant pipe storage factors
Storage location
Storage
time
Sealing
type
Outdoor
Longer than one
month
Pipe
pinch
Shorter than one
month Taping
Indoor — Taping
Ship-with refrigerant amount by unit type
3 ton unit 4 ton unit 5 ton unit
7.1 lbs 7.1 lbs 7.3 lbs
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