44
5
Outdoor unit
5-10. PMV Kit
PMV-Kit (RBM-PMV0362E/RBM-PMV0902E) shall be required for quieter place application as an optional to reduce
refrigerant sound especially in oil retrieval control or in transient operation as start up.
5-10-1. Selection
• Connecting direction of refrigerant pipe
When connecting pipes, be careful of direction of the
main unit. Be sure to install the main unit so that
[
] mark in the label directs upward.
For connection of the refrigerant pipes, follow the
arrow mark in the label and connect pipes after
confirming directions of indoor unit and outdoor unit.
Piping material and dimensions
Model name
Indoor unit capacity type
Diameter of refrigerant pipe
RBM-PMV0362E
005 to 014 type
ø6.4
RBM-PMV0902E
015 to 018 type
ø6.4
020 to 027 type
ø9.5
Allowable length of refrigerant piping
PMV Kit
Indoor unit
PMV Kit
Refrigerant pipe
2 m to 10 m
Indoor unit
PMV Kit
NO GOOD
OK
Indoor unit
Note)
Do not connect two or more indoor units to one PMV Kit.
Arrange one indoor unit and one PMV Kit set to 1 by 1.
Label
Model name
Indoor unit capacity type
Diameter of refrigerant pipe
Notes
RBM-PMV0362E
005 to 014 type
ø6.4
RBM-PMV0902E
015 to 018 type
ø6.4
020 to 027 type
ø9.5
Attached joint
Attached joint
CAUTION
PMV Kit
Attached joint
Seal pipe
Attached joint
Liquid pipe
When connecting ø9.5 refrigerant pipes, be sure to insert a seal pipe between PMV main unit and the joint.
If the seal pipe is not inserted, refrigerant leakage is caused.