MicroTech III MT3006 POL687.70/MCQ and POL904.00/MCQ BACnet MSTP Used

MicroTech III MT3006 POL687.70/MCQ unit controller with POL904.00/MCQ BACnet MSTP Module

Condition:

Used, clean, and in good condition. System consists of  MicroTech III MT3006 – POL687.70/MCQ and POL904.00/MCQ BACnet MSTP Module.

Here’s what we know about it:

The MicroTech III  MT3006 POL687.70/MCQ unit controller (UC)  continuously manages information from various pressure and temperature probes installed on the compressors.

Its primary functions include:

• Controlling compressor start-up
• Regulating up to twelve compressors across one or two independent refrigerant circuits
• Managing all safety features for each compressor
• Controlling electronic expansion valves for each refrigerant circuit
• User Interface
• The standard Human Machine Interface (HMI) for MicroTech III includes:
• An inbuilt display
• Three buttons
• A push’n’roll control for navigating interface screens and modifying settings
• This interface is integrated into the UC board and provides access to a comprehensive array of control parameters.
• Power and Connectivity
• A common 24 Vac supply powers all boards
• The Unit Controller can directly power extension boards
• The system can interface with BAS protocols such as LonWorks, BACnet, and Modbus

Additional Features:

• Remote on/off capability
• General alarm output for fault conditions
• Compressor status monitoring
• Capacity limitation control
• Setpoint override functionality

Applications:

• Water-cooled screw chillers
• Air-cooled liquid chillers
• Centrifugal chillers (such as the Daikin WTC Two-Stage Centrifugal Water Chiller)

Also included is a Siemens POL904.00/MCQ is a BACnet MSTP Communication Module

The POL904.00/MCQ facilitates integration and communication between various devices and components in a building management system using the BACnet MS/TP protocol.

BACnet MS/TP (Master-Slave/Token-Passing) is a standard communication protocol for building automation and control networks. This module allows Siemens devices to connect and communicate with other BACnet-compatible devices and systems.

The POL904.00/MCQ helps create more efficient and integrated building management systems by enabling network communication. It allows for the exchange of data and commands between different system parts, such as HVAC controls, lighting systems, security systems, and other building automation components.