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Idiomas disponibles
2.
Overview
VRF Dx-coil interface (DDC type) is the product that is used with connecting the AHU with the DX COIL prepared on-site
to the TOSHIBA VRF outdoor unit.
*1. DX COIL: Abbreviation of the Direct expansion coil (heat exchanger).
*2. DDC: Abbreviation of the Direct Digital Controller.
*3. AHU: Abbreviation of the Air Handling Unit.
For the installation of the air handling unit, refer to the installation manual of the air handling unit.
• For capacity control with DDC type, use the supply air temperature sensor.
• Dx-coil interface (DDC model) is not for air conditioning. In order to control the room temperature, prepare another air
conditioner separately.
Example of the system configuration
VRF Dx-coil interface (DDC type) can connect to SMMS-e, SMMS-7 and SMMS-u.
In one cycle the outdoor unit and Dx-coil interface shall be one each for the structure.
For the AHU prepared on-site, please design with referring to submittal of AHU.
DX COIL type
Type
Model name
Connectable
Dx-coil
Capacity
DX COIL type
MAX connectable
Dx-coil capacity
Specification
Remote
controller
Maker
supply
Field
supply
DDC
7-EN
Dx-coil controller
TCB-IFDDC201E
8HP
1
10HP
1
16HP
1
18HP
1
20HP
1
32HP
1
36HP
1
40HP
1
Normal
UP to 40 HP
2 or 3 inlet & outlet ports
1 inlet & outlet port
2 or 3 path ways are
arranged up and down
Communication line
Liquid pipe
Dx-coil
PMV control
controller
Normal
Dx-valve kit
RBM-A101VAE
1
1
-
-
-
-
-
-
Split face
Not Available
2 or 3 inlet & outlet ports
2 or 3 path ways are
interlaced
Outdoor unit
Gas pipe
Dx-valve
kit
TC2
TCJ
TA
Air Handling Unit
TC1
– 7 –
RBM-A201VAE
-
-
1
1
1
2
2
2
Interlaced
Not Available
2 or 3 inlet & outlet ports
2 or 3 path ways are
arranged parallels
TA Suction air temperature sensor
TCJ, TC1, TC2 Evaporator temperature sensor
TDF
TDF
AHU discharge air
temperature sensor for
control (For example)
Split Row
Not Available
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