Toshiba TCB-IFDA1GUL - Refrigerant Piping Selection; Dx-Coil connection pipe; DX Coil Schematic and coil preparation

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•Selection of refrigerant piping
Follow the selection of refrigerant piping of outdoor units.
Dx-Coil connection pipe
Dx-Coil capacity code
Gas side
Liquid side
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Pipe length
(Actual length)
49ft or less
Φ3/8”
Φ1/4”
Over 49ft
Φ1/2”
Φ1/4”
15.4 to 18
Φ1/2”
Φ1/4”
21 to 60
Φ5/8”
Φ3/8”
72 to 96
Φ7/8”
Φ1/2”
168 to 192
Φ1-1/8”
Φ5/8”
336, 384
Φ1-5/8”
Φ7/8”
■ 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.
The 3
rd
Party Dx-Coil should be supplied with a Gas Header and Liquid Capillary Distributor (see below):-