Ventilation DX Kit for Air Handling Applications
Features
Different control strategies for optimized control of air handling & fan coil units
![](/shared/us/img-f000-ventilation-dx-kit-feature-coil-unit-ahu.png)
When connected to an air handling unit (AHU), the temperature of supply air is controlled by a discharge sensor.
![](/shared/us/img-f000-ventilation-dx-kit-feature-coil-unit-fcu.png)
When connected to a fan coil unit (FCU), the room temperature is controlled by a return-air temperature sensor.
Application as part of a VRF system
![](/shared/us/img-f000-ventilation-dx-kit-feature-arrangement-as-part-of-a-vrf-system.png)
Supports a wide range of capacity classes
- Connectable capacity range: 18,000 BTU/h to 168,000 BTU/h
- 2 EEV units can be connected in parallel for up to 168,000 BTU/h large capacity units. (Separation Tube kit UTP-LX180A is required for 144,000 BTU/h / 168,000BTU/h.)
![](/shared/us/img-fcus-ventilation-dx-kit-feature-capacity-classes.jpg)
A variety of control options that meet application requirements
![](/shared/us/img-f000-ventilation-dx-kit-feature-management-controllers.png)
Central control using VRF controllers or central management (BMS) controller
![](/shared/us/img-f000-ventilation-dx-kit-feature-external-controllers.png)
Central control from external controllers
Summary of functions
Inputs
- On/Off
- Setting temperature
- Capacity demand
- Heating and cooling operation modes
- Fault information
Outputs
- On/Off indication
- Fan On/Off indication
- Thermostat On/Off indication
- Defrost indication
- Fault indication
MODBUS® Control
Possible to control via Modbus interface for the integration into a BMS system.
Installation Limitation
- Connectable VRF series: J-IIIL, J-IIS, J-II, V-II, VR-II
- Connectable DX-Kit system capacity range: 50 to 100% of the outdoor unit capacity
- Connectable DX-Kit system capacity range with indoor units: 30% or less of the outdoor unit capacity
- Max wiring length from control unit: 32ft. (10m)
- Max piping length between EEV unit and indoor unit: 16ft. (5m)
- Outdoor installation: Control unit and EEV unit can be installed at an outdoor space.
![](/shared/us/img-f000-ventilation-dx-kit-feature-separation-tube.png)
For 2EEV units connection (option) Separation Tube kit : UTP-LX180A
Connectable capacity
![](/shared/us/img-f000-ventilation-dx-kit-feature-single-connection.png)
![](/shared/us/img-f000-ventilation-dx-kit-feature-mixed-connection.png)
Piping and wiring length
![](/shared/us/img-fcus-ventilation-dx-kit-feature-piping-and-wiring-length.jpg)