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Small rectangular interface module with connector ports

Mitsubishi

Mitsubishi PAC-UKPRC001-CN-1 BACnet Modbus Interface

SKU CH-603N-NPQ07

Connects Mitsubishi indoor units to BACnet or Modbus building management systems via RS-485 for third-party monitoring and control

  • TypeHVAC Controls
  • Enables third-party BMS control via BACnet MSTP or Modbus RTU
  • Powers directly from indoor unit CN105 connector at 12VDC
  • One MelcoBEMS MINI interface required per indoor unit
  • Compatible with MAC-333IF connector CN505 for IT integration
  • Supports extensive range of Mitsubishi Electric indoor unit models

BACnet and Modbus HVAC Interface

This Mitsubishi interface connects a third-party building management system to compatible CITY MULTI, M-Series, or P-Series indoor units. It enables monitoring and control over RS-485 using BACnet MSTP or Modbus RTU protocols. One MelcoBEMS MINI unit is required per indoor unit for operation.

Installation Power and Connector Requirements

The device draws 12VDC power directly from the indoor unit CN105 connector. Verify that the target indoor unit provides this connector and matches the listed compatible model series. It is also compatible with the MAC-333IF connector CN505 IT for specific integration scenarios.

Retrofit for Legacy Protocol Integration

This interface replaces direct proprietary control links when a building management system requires standard BACnet or Modbus communication. The upgrade is worthwhile when centralised automation across multiple indoor units is needed and the existing units are on the supported compatibility list.

Highlights

  • Enables third-party BMS control via BACnet MSTP or Modbus RTU
  • Powers directly from indoor unit CN105 connector at 12VDC
  • One MelcoBEMS MINI interface required per indoor unit
  • Compatible with MAC-333IF connector CN505 for IT integration
  • Supports extensive range of Mitsubishi Electric indoor unit models

Specifications

TypeHVAC Controls

Questions about this item

Does the PAC-UKPRC001-CN-1 include the 12 VDC power lead or must that be sourced separately?

The interface draws 12 VDC directly from the indoor unit CN105 connector; no separate power supply is required.

One MelcoBEMS MINI is listed per indoor unit — is that the only version available?

Yes, the product is supplied as a single MelcoBEMS MINI (A1M) intended for one indoor unit.

What does RS-485 BACnet MSTP or Modbus RTU support mean for daily operation?

It lets a third-party building management system monitor and control the connected Mitsubishi Electric indoor unit over a standard RS-485 network.

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