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Prolon PL-M2000-MUA make-up air controller

Prolon PL-M2000-MUA : Make-Up Air Controller, Discharge Air Reset, Building Pressure or CO2 VFD Control, 9 Configurable Analog Inputs, 5 Triac Outputs, 3 Analog Outputs, Modbus RTU (RS485)

Prolon

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SKU:
PL-M2000-MUA
Condition:
New
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Controller TypeMake-Up Air Controller
Inputs9 configurable analog inputs
Digital Outputs5 triac, 10-30 VAC source
Analog Outputs3 x 0-10 VDC, 40 mA max
ProtocolModbus RTU (RS485)
Supply24 VAC, Class 2
The Prolon PL-M2000-MUA is a Modbus RTU make-up air controller with single, dual, and variable volume sequences, discharge air temperature reset, and building pressure or CO2 control through a variable frequency drive.

Specifications sourced from Prolon datasheet PL-DATA-M2000MUA-C/F-EN, REV 7.3.0. Verified September 18, 2026.

Overview

The M2000 MUA controls make-up air units in single, dual, or variable volume configurations, with separate configurable winter and summer sequences. Discharge air temperature is reset from outside air temperature or zone demand, and a variable frequency drive can be modulated to hold building pressure or a CO2 setpoint. Nine analog inputs cover zone, outside, and discharge temperatures plus dry contacts for proof of exhaust, fan and damper opening, manual overrides, CO2 levels, and static pressure. Safety limits and a lockout mode are built in.

Best For

  • Single, dual, or variable volume make-up air units
  • Kitchen and process exhaust replacement air with proof of exhaust interlocks
  • Buildings holding a pressure or CO2 setpoint through a VFD
  • Units needing separate winter and summer sequences

Warranty and Sourcing

ZOT Supply is an authorized Prolon distributor. Every PL-M2000-MUA ships new in factory packaging and is covered by the Prolon manufacturer warranty. For current warranty terms and RMA handling, contact ZOT Supply at 855-825-2811 or sales@zotsupply.com.

Key Features

Single, dual, or variable volume

Three volume sequences are available for the unit.

Winter and summer sequences

Winter and summer sequences are configured separately.

Discharge air reset

Discharge air temperature is reset from outside temperature or zone demand.

Building pressure or CO2 VFD control

A variable frequency drive is modulated for building pressure control or CO2 control.

Proof of exhaust interlocks

Dry contact inputs cover proof of exhaust, fan and damper opening, and manual overrides.

Lockout override

A manual input deactivates lockout mode.

  • Internal clock with configurable schedules and calendars
  • A manual/off/auto switch for each of the eight outputs
  • Stand-alone or networked (up to 127 nodes)
  • Proportional integral (PI) control loops
  • 5 digital outputs and 3 analog outputs equipped with resettable fuses
  • Built-in protection sequences with configurable temperature limits and minimum delays

Technical Specifications

SpecificationPL-M2000-MUA
Supply24 VAC +/-10%, 50/60 Hz, Class 2
Power5 VA (consumption), 40 VA (input)
Inputs9 configurable analog inputs (zone temp / outside temp / discharge temp, dry contact for proof of exhaust, fan and damper opening, manual overrides, CO2 levels, static pressure). Input signals (thermistor / dry contact / 4-20mA / 0-5 VDC) individually configurable for each input
Digital Outputs5 triac outputs, 10-30 VAC source, 300 mA max (resettable fuse)
Analog Outputs3 x 0-10 VDC outputs, 40 mA max (resettable fuse)
Indication Lights (LED)State of each output / Communication / Power / State of microprocessor
MicroprocessorPIC18F6722, 8 bits, 40 MHz, 128 KB FLASH memory
CasingMolded ABS, UL94-HB
CommunicationModbus RTU (RS485), up to 127 nodes
Baud Rates9600, 19200, 38400, 57600, 76800, 115200
ConnectionRemovable screw-type terminal blocks (max 16 AWG) and RJ45 modular jacks
Dimensions5.39 in x 4.41 in x 2.25 in (137 mm x 112 mm x 57 mm)
Weight1.05 lbs (0.48 kg)
Environment-4 to 122 °F (-20 to 50 °C) Non-Condensing
CertificationUL916 Energy Management Equipment, CAN/CSA-C22.2, RoHS, FCC part 15: 2012 class B

Documentation

PDFProlon PL-M2000-MUA Make-Up Air Controller Datasheet (REV 7.3.0)
PDFProlon Make-Up Air Controller Focus Guide
PDFProlon M2000-MUA Hardware Guide
PDFProlon M2000 Make-Up Air Modbus Configuration Properties
PDFProlon M2000 Series Quick Start Guide

Frequently Asked Questions

Can the PL-M2000-MUA control building pressure?

Yes. It performs building pressure control or CO2 control using a variable frequency drive, driven from one of the 3 analog 0-10 VDC outputs.

What volume sequences does the PL-M2000-MUA support?

Single, dual, or variable volume sequences, with separately configurable winter and summer sequences.

How does the PL-M2000-MUA reset discharge air temperature?

Discharge air temperature is reset based on outside temperature or on zone demand.

What inputs does the PL-M2000-MUA provide?

9 configurable analog inputs covering zone temp, outside temp, and discharge temp, plus dry contacts for proof of exhaust, fan and damper opening, manual overrides, CO2 levels, and static pressure.

What input signal types does the PL-M2000-MUA accept?

Each input is individually configurable for thermistor, dry contact, 4-20mA, or 0-5 VDC.

Controller Type:
Make Up Air
Digital Outputs:
5
Analog Outputs:
3
Inputs:
9
Communication:
Modbus RTU (RS485)
Product Series:
M2000
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