SiBE37-701_B Piping Installation Point
Appendix 444
5.2 The Example of a Wrong Pattern
Note:
★
Available on request if the outdoor unit is above.
Wrong
Oil is collected to the outdoor
unit at the time of a stop,
because of bottom omission of
piping.
(V3039)
Wrong
Oil is collected to the low level outdoor
unit at the time of a stop, because of
downward slope of piping.
Good
Good
The example of installation on which oil is not collected.
Vertical
Projection
(V3040)
Max. allowable
Piping Length
Outdoor Unit - Multi Connection Piping Kit Actual piping length 10m or less, equivalent length 13m or less
Multi Connection Piping Kit - Indoor Unit
Actual piping length 165m or less, equivalent length 190m or
less, the total extension 1000m or less
REFNET Joint - Indoor Unit
Actual piping length 40m or less
(Refer to Page 448 Note 2 in case of up to 90m)
Allowable
Level
Difference
Outdoor Unit - Outdoor Unit 5m or less
Outdoor Unit - Indoor Unit
Outdoor Unit is above 50m or less ★90m or less
Outdoor Unit is below 90m
Indoor Unit - Indoor Unit 15m or less
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