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2.
Overview
VRF Dx-coil interface is the product that is used with connecting the AHU with the DX COIL prepared on-site to the
Carrier 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.
• Dx-coil interface (DDC type use for Supply air temperature or TF type) cannot control the room temperature.
„ Example of the system configuration
VRF Dx-coil interface can connect to New Carrier band VRF.
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.
TA type
: Enables to connect 3rd party indoor unit or air handing unit as one of VRF indoor unit.
(Return air temperature control by remote controller setting)
Main application target – Room temperature conditioning
Outdoor unit
Outdoor unit
Dx-coil controller
Remote
controller
12:00
Room
(Mon)
27
°C
Set temp. (Cool)
Dx-valve kit
Dx-coil controller
Remote
controller
12:00
Room
(Mon)
27
°C
Set temp. (Cool)
Dx-valve kit
– 7 –
AHU
TA
TCJ
TC2 TC1
AHU
TA
TCJ
TC2 TC1
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