When connected to an air handling unit (AHU), the temperature of supply air is controlled by a discharge sensor.

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

• Two EEV units can be connected in parallel to large capacity units of up to 20 HP (50 kW). (UTP-LX180A Separation Tube required)
• Connectable capacity range: 5 to 50 kW

Central control enabled by our VRF controllers or central management controllers

Central control from external controllers

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^® Converter

Can be controlled via a MODBUS^®-enabled BMS using an optional interface.

Installation requirements

• Connectable VRF series: J-IIS, J-II, V-II, VR-II
• Capacity range of connectable DX Kit systems: 50 to 100% of an outdoor unit's capacity
• Capacity range of connectable DX Kit systems with indoor units: 30% or less of an outdoor unit's capacity
• Max. wiring length from a control unit: 10 m
• Max. piping length between an EEV unit and an indoor unit: 5 m
• Outdoor installation: A control unit (IP54 class) and an EEV unit can be installed outdoors.

Optional Separation Tube to connect 2 EEV units: UTP-LX180A

Piping and wiring length