Home Heaters CMU

CMU - Compact Make-up Air Unit

Overview

CFM range of 50 to 750
Sizes from 6” to 12”, up to 20kW
Axial or centrifugal fan, with ECM and AC motors
Multiple I/O support for advanced control strategies

Fans

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

BMS Integration
Save energy
Monitor alarms
Remote diagnostics

Overview
Fans
Features

BACnet/Modbus
CMU BACnet
CMU Modbus
Tools
BACnet Guide

FRESH AIR makes all the difference!

Neptronic’s Compact Make-up Air Unit (CMU) is the perfect solution to eliminate stale air and indoor contaminants and pollutants, by delivering cleaner, fresher and healthier air inside a home, office or other building environment. The CMU maximizes efficiency and optimizes indoor air quality, which, along with optional communication modules, makes it the ideal product for integration with the automation system of intelligent buildings, by enhancing user comfort and reliability.

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.

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.

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