Toshiba TCB-IFDA1GUL Installation Manual page 12

•Selection of refrigerant piping
Follow the selection of refrigerant piping of outdoor units.
Dx-Coil connection pipe
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■ DX Coil Schematic and coil preparation
Maximum real piping length between Dx-PMV kit and Dx-Coil is up to 16ft.
(Note) Be sure to connect piping in correct direction. On the bottom on base box, there is the label to indicate the direction
of inlet coming from outdoor unit and outlet to Dx-Coil.
The VRF Dx-PMV kit (RBM-A___1GUL) is necessary as separate products. These will need to be assembled and then fitted to
Dx-Coil. This is a custom process as each Dx-Coil will be different. Time and care should be given to this activity, and it should
be prepared off-site.
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The 3 Party Dx-Coil should be supplied with a Gas Header and Liquid Capillary Distributor (see below):-
Dx-Coil capacity code
Pipe length
(Actual length)
15.4 to 18
21 to 60
72 to 96
168 to 192
336, 384
Gas side
Φ3/8"
49ft or less
Φ1/2"
Over 49ft
Φ1/2"
Φ5/8"
Φ7/8"
Φ1-1/8"
Φ1-5/8"
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Liquid side
Φ1/4"
Φ1/4"
Φ1/4"
Φ3/8"
Φ1/2"
Φ5/8"
Φ7/8"