Unit Ventilator Controller

The Prolon Unit Ventilator Controller is designed for seamless integration with 2-pipe and 4-pipe unit ventilator systems and delivers precise temperature control while significantly improving indoor air quality. By optimizing airflow and minimizing energy waste, it creates a more comfortable and consistent environment—enhancing occupant comfort and promoting healthier indoor conditions.

The UNV Controller features an on-board microprocessor for accurate digital control, leveraging PI (Proportional-Integral) algorithms to ensure optimal HVAC performance. It supports a wide range of configurable sequences, including:

– Automatic 2-pipe mode changeover based on water temperature
– 4-pipe mode
– Automatic purge cycles to prevent coil stagnation
– Economizer & CO2 control and face & bypass damper sequencing
– Flexible scheduling and override capabilities

Configuration is simple and can be performed locally or remotely using Prolon’s free, intuitive software.

By monitoring dedicated inputs and executing pre-defined yet fully adjustable control strategies, the Prolon UNV maximizes both energy efficiency and operational flexibility—making it a smart and sustainable solution for modern unit ventilator systems.

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  • M2000-UNV

    System Compatibility & Control
    – Designed specifically for hydronic HVAC systems
    – Controls space temperature using a single temperature sensor
    – Supports On/Off or modulating valve control for heating and cooling
    – Automatic changeover between heating and cooling on 2-pipe systems

    Advanced Control Sequences
    – Proportional-Integral (PI) control loops maximize system performance
    – Face & Bypass sequence with integrated frost protection
    – Optional Economizer sequence with CO2 control
    – Configurable unoccupied mode sequences
    – Multi-speed fan control options
    – Several safety and efficiency limits, including freeze protection

    Outputs & Hardware
    – 5 digital outputs and 3 analog outputs, all with self-resetting fuses
    – Manual/Off/Auto switch available for each of the eight outputs

    Scheduling & Operation Modes
    – Built-in internal clock with configurable schedules and calendars
    – Operates as a stand-alone controller or can be networked (up to 127 nodes)

    Configuration & Monitoring
    – Remote monitoring and configuration via FREE Prolon Focus software

  • Specifications
  • Documentation
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