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CMU - Compact Make-up Air Unit

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New models available CMU
  • Higher flow: Up to 2000 CFM
  • More power: Up to 35 kW
  • Better precision: Centrifugal ECM fans
Fans Open Coil - HECB
  • ECM and AC fan strategies
  • Antifrost protection
  • Quiet fan with very low noise production
  • Fan can be controlled relative to demand based on active exhaust units
Features Open Coil - EAS
  • BMS Integration
  • Save energy
  • Monitor alarms
  • Remote diagnostics

  • Overview

  • Fans

  • Features

FRESH AIR makes all the difference!

Neptronic's Compact Make-Up Air Unit (CMU) is equipped with advanced control strategies and a variety of size options to accommodate a wide range of HVAC applications. The CMU maximizes efficiency and enhances indoor air compensation, ensuring superior performance in HVAC system management. Equipped with Electronic Airflow Sensors (EAS), the CMU delivers precise temperature readings and integrates seamlessly with other building management systems with BACnet MS/TP and Modbus RTU communication protocols. Now, users can monitor supply temperatures, configure temperature setpoints based on airflow requirements, and receive alarm notifications.

SKE4 OVerview Brands Open Coil - EAS
CMU

Advantages

  • Enhanced airflow capacity, delivering up to 2000 CFM (3400 m³/h)
  • Supports unit power up to 35 kW, accommodating diverse HVAC requirements.
  • Equipped with ECM and centrifugal fans to provide forceful airflow in the ducts.
  • Wide voltage range between 120V/1ph to 600V/3ph, ensuring compatibility with different power systems.
  • Available in sizes from 6 inches to 20 inches.
  • Handles up to 2-inch W.G. resistance within air ducts.
  • Features Electronic Airflow Sensors (EAS) for accurate airflow monitoring.
  • Offers multiple I/O support and integration with exhaust fans for optimized ventilation
  • Compatible with BACnet MS/TP and Modbus RTU protocols, facilitating easy integration with building automation systems.
  • Simplified operation and maintenance.

System Overview


New CMU models available now:


Model Collar size (in.) Voltage (V) Power (kW)
CFCMU14G25DD 14 208 25
CFCMU14I25DD 14 480 25
CFCMU14J25DD 14 600 25
CFCMU16G25DD 16 208 25
CFCMU16I25DD 16 480 25
CFCMU16J25DD 16 600 25
CFCMU18G25DD 18 208 25
CFCMU18I25DD 18 480 25
CFCMU18J25DD 18 600 25
CFCMU20G25DD 20 208 25
CFCMU18I25DD 20 480 25
CFCMU18J25DD 20 600 25
Model Collar size (in.) Voltage (V) Power (kW)
CFCMU14G30DDD 14 208 30
CFCMU14I30DD 14 480 30
CFCMU14J30DD 14 600 30
CFCMU16G30DD 16 208 30
CFCMU16I30DD 16 480 30
CFCMU16J30DD 16 600 30
CFCMU18G30DD 18 208 30
CFCMU18I30DD 18 480 30
CFCMU18J30DD 18 600 30
CFCMU20G30DD 20 208 30
CFCMU20I30DD 20 480 30
CFCMU20J30DD 20 600 30
Model Collar size (in.) Voltage (V) Power (kW)
CFCMU14G35DD 14 208 35
CFCMU14I35DD 14 480 35
CFCMU14J35DD 14 600 35
CFCMU16G35DD 16 208 35
CFCMU16I35DD 16 480 35
CFCMU16J35DD 16 600 35
CFCMU18G35DD 18 208 35
CFCMU18I35DD 18 480 35
CFCMU18J35DD 18 600 35
CFCMU20G35DD 20 208 35
CFCMU20I35DD 20 480 35
CFCMU20J35DD 20 600 35

Login to NepConnect to see all models. For more information, contact your local distributor.

  • Axial Fan
  • Centrifugal Fan

Used in standard applications with aluminum filters, in which there is a lower pressure drop.

Includes the option of an AC or ECM motor:

  • AC motor provides a cost effective solution, with simple installation and operation.
  • ECM motor provides advanced control strategies, with high modulation capabilities and better efficiency.

Available for sizes ranging from 6 inches to 12 inches. (For sizes 14 inches and above, only centrifugal fans are available)

Used in applications with higher restriction on the filter, duct or zoning requirements, which result in a higher pressure drop.

Includes ECM motor:

  • ECM motor provides advanced control strategies, with high modulation capabilities and better efficiency.

Available for all sizes of the CMU ranging from 6 inches to 20 inches.

Network Communication

  • BACnet MS/TP or Modbus RTU (selectable via DIP switch)
  • Select MAC address via DIP switch or via network

BACnet MS/TP

  • MS/TP @9600, 19200, 38400 or 76800 bps
  • BACnet scheduler (up to 6 events)
  • Firmware upgradeable via network
  • COV (change of value)
  • Copy and broadcast configuration to other devices via menu or network
  • Automatic baud rate detection
  • Automatic device instance configuration

Modbus RTU

  • Modbus RTU @9600, 19200, 38400 or 57600 bps
  • RTU Slave, 8 bits (configurable parity and stop bits)
  • Connects to any Modbus RTU master

Add-On Module

Ease of operation with Neptronic TDF digital room sensors

  • Display supply temperature
  • Configure CFM and temperature setpoints
  • Monitor alarms

Intelligent control strategies with ECM and AC fan options

  • Indoor air quality applications with integrated temperature, humidity and CO2 sensor
  • Interlock with extraction fans
  • Outside air sensors prime heater coils for fast response and comfort
  • Static pressure PID algorithms, control of fresh air and return air
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Latest News

$12 million investment fuels The Neptronic Group's expansion plans $12 million investment fuels The Neptronic Group's expansion plans
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Neptronic expands capacity of its Compact Make-Up Air Unit Neptronic expands capacity of its Compact Make-Up Air Unit
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