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CU-LH Control Unit

Produal CU-LH

Multifunctional control unit specifically designed for zone control applications. It combines all the flexibility and power of the Produal Proxima CU in a more compact format.

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CU-LH_transparent
CU-LHB_transparent
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3 multifunctional inputs
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Modbus RTU
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BACnet MS/TP
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App MyProdual

CU-LH is a control unit for advanced room and zone control applications that demand more functionality than traditional controllers can provide. With this control unit you can control, for example, heating, cooling and ventilation using a wide range of actuators.

The control unit has two separate controllers and a cascade controller. The unit has three operation modes for energy saving control functions. You can configure the outputs, setpoints and the controller dead zone separately for each operation mode.

You can connect up to two room units to one control unit for controlling up to two rooms with the same unit. The control unit supports the following devices as room units: RU, RT, RTX, TRI and ROU-S.

The control unit has 3 multifunctional inputs that support passive NTC10 sensors, 0...10 Vdc transmitter signals and contact functions. The control unit has 4 multifunctional outputs. They support 0...10 Vdc and 24 Vac actuators with different output functions, such as heating, cooling, 6-way valve control, 3-point actuator, fan speed or VAV.

This model supports Modbus RTU and BACnet MS/TP communication protocols.

You can configure the control unit settings with the MyProdual smartphone application and MyTool Connect dongle. You can save the control unit configuration to Produal MyCloud cloud service with the application. You can also update the control unit firmware using the application.

Communication

Modbus RTU (models -MOD), BACnet MS/TP (models -BAC)

Power supply

24 V CA/CC (22-26 V), < 2 VA

Power supply

Power supply output 2 × 24 VAC, total load < 6 A

Control signal

2 P / PI loops + cascade control

Output signal

2 de 0-10 V CC, 2 mA / 24 V CA, 1 A (Modulación por ancho de pulsos) y 2 de 0-10 V CC, 2 mA

Inputs

3 × NTC 10 / resistive / tension-free contact / 0–10 V DC

Environmental protection

IP44

Temperature

0...50 °C

Ambient humidity

0...85 %rH

Dimensions

116 x 128 x 47 mm

Mounting / Installation

Wall-mounted or on 35 mm DIN rail

Housing / Materials / Connections

PC

CU-LHB-MOD

Control unit, black, Modbus RTU

CU-LHB-BAC

Control unit, black, Modbus RTU / BACnet MS/TP

CU-LH-MOD

Control unit, white, Modbus RTU

CU-LH-BAC

Control unit, white, Modbus RTU / BACnet MS/TP

CE Certificate