Controller
M2000
Program
Air Make Up
Supply
24 VAC, Class 2
Outputs
5 DO / 3 AO
Protocol
Modbus RTU (RS485)
Panel
NEMA 1, UL508A
Overview
The Prolon PL-PN1-7L is a pre-wired, UL508A certified NEMA 1 control panel built with one Prolon M2000 controller running the Air Make Up Controller program, which operates a variety of make-up air units and systems, with operator hardware mounted on the panel door. Isolation relays on all digital outputs, overcurrent fuse protection and clearly marked terminal blocks come factory wired.
Program strategies include outdoor temperature reset, building pressure control, CO2 control and lockout mode and safety limits. It runs stand-alone or on a Modbus RTU (RS485) Prolon network of up to 127 nodes.
Specifications per Prolon Pre-Wired M2000 MUA Controller Panel datasheet REV 7.5.1 / PL-DATA-PLM2000MUA-EN; Prolon M2000 Air Make Up Controller Hardware Guide REV 7.3.0; Prolon Air Make-Up Controller Panels product page (proloncontrols.com) retrieved 2026-09-22. Reviewed September 2026.
Best For
- Make-up air units that need a door-mounted ON/OFF/AUTO selector
- Units where lockout mode must be visible and reset at the panel
- Make-up air units with CO2 and building pressure control
Warranty
For warranty coverage on this Prolon panel, contact ZOT Supply at sales@zotsupply.com or 855-825-2811.
Key Features
Door-mounted operator hardware
ON/OFF/AUTO selector switch and Lockout Mode reset pushbutton on the panel door, with LED indicator lights for Fan Operation and Lockout Mode.
Isolation relays on digital outputs
All digital outputs are isolated with relays built into the panel, and the 5 digital and 3 analog outputs have resettable fuses and Hand/Off/Auto switches.
Fused, pre-wired NEMA 1 panel
Clearly marked terminal blocks, wire management channels and a disconnect-style Slo-Blo fuse (3A @ 250 VAC) with a replacement fuse included. The panel wiring diagram is in the door.
Standalone schedule
Built-in real time clock runs a standalone schedule of up to 4 periods per day, 7 days per week, plus holiday calendar, and stays accurate for up to 10 days without power.
PI control loops
Proportional integral (PI) control loops and highly customizable M2000 sequences with protective limits, delays and interlocks.
Free Prolon Focus software
Remote monitoring and configuration with free Prolon Focus software, stand-alone or networked up to 127 nodes.
Technical Specifications
| Panel | |
|---|---|
| Controller | Prolon M2000, Air Make Up Controller program |
| Supply | 24 VAC ±10%, 50/60 Hz, Class 2 |
| Power | 5 VA (consumption), 40 VA (input) |
| Overcurrent Protection | Disconnect-style Slo-Blo fuse (3A @ 250 VAC), with additional replacement fuse included |
| Enclosure | NEMA 1 |
| Panel Dimensions | 20.25 in. H x 16.25 in. W x 6.25 in. D (514 mm H x 413 mm W x 159 mm D) |
| Weight | 18.8 lbs (8.53 kg) |
| Door Hardware | ON/OFF/AUTO selector switch and Lockout Mode reset pushbutton mounted on panel door; LED indicator lights for Fan Operation and Lockout Mode |
| Panel Version | MUA Advanced: with additional hardware (selector, LEDs, lockout reset button) |
| Environment | -4 to 122 °F (-20 to 50 °C), non-condensing |
| Panel Certification | Complete panel is UL508A certified |
| Certification | UL916 Energy Management Equipment, CAN/CSA-C22.2, RoHS, FCC part 15: 2012 class B |
| M2000 Controller Hardware | |
| Inputs | 9 analog inputs (thermistor / dry contact / 4-20mA / 0-5 VDC / 1-5 VDC), individually configurable for each input |
| Digital Outputs | 5 triac outputs, 24 VAC source, 300 mA max (resettable fuse); all digital outputs isolated by relays in the panel |
| Analog Outputs | 3 outputs 0-10 VDC / 2-10 VDC / 0-5 VDC / 1-5 VDC, 40 mA max (resettable fuse) |
| Indication Lights (LED) | State of each output / Communication / Power / State of microprocessor |
| Casing | Molded ABS, UL94-HB |
| Communication | Modbus RTU (RS485) up to 127 nodes |
| Baud Rates | 9600, 19200, 38400, 57600, 76800, 115200 |
| Connection | Removable screw-type terminal blocks (max 16 AWG) and RJ45 modular jacks |
| Air Make Up Controller Program | |
| Program | Air Make Up Controller |
| Application | Operates a variety of make-up air units and systems, with operator hardware mounted on the panel door |
| Program Inputs | 9 configurable analog inputs: zone temp, outside temp, discharge temp, proof of exhaust, fan and damper opening (dry contact), manual overrides, CO2 levels, static pressure (thermistor / dry contact / 4-20mA / 0-5 VDC) |
| Program Outputs | 5 triac outputs; 3 x 0-10 VDC analog outputs, 40 mA max (resettable fuse) |
Documentation
Frequently Asked Questions
What is the Prolon PL-PN1-7L?
A pre-wired one controller panel built with a Prolon M2000 controller running the Air Make Up Controller program, in a UL508A certified NEMA 1 enclosure with isolation relays on all digital outputs.
What does the air make up program control?
It operates a variety of make-up air units and systems, with operator hardware mounted on the panel door. Strategies include outdoor temperature reset, building pressure control, CO2 control and lockout mode and safety limits.
Which inputs does the PL-PN1-7L use?
9 configurable analog inputs: zone temp, outside temp, discharge temp, proof of exhaust, fan and damper opening (dry contact), manual overrides, CO2 levels, static pressure (thermistor / dry contact / 4-20mA / 0-5 VDC).
What power does the panel require?
24 VAC ±10%, 50/60 Hz, Class 2. The M2000 draws 5 VA (consumption), 40 VA (input).
Are the outputs isolated and protected?
Yes. All digital outputs are isolated with relays built into the panel, the 5 digital and 3 analog outputs have resettable fuses and Hand/Off/Auto switches, and the panel has a disconnect-style Slo-Blo fuse (3A @ 250 VAC) with a replacement fuse included.
How does the PL-PN1-7L communicate?
Modbus RTU (RS485), up to 127 nodes, at 9600 to 115200 baud, configured with free Prolon Focus software.
What size is the PL-PN1-7L panel?
20.25 in. H x 16.25 in. W x 6.25 in. D (514 mm H x 413 mm W x 159 mm D), and it weighs 18.8 lbs (8.53 kg).
What is mounted on the PL-PN1-7L panel door?
An ON/OFF/AUTO selector switch, a Lockout Mode reset pushbutton, and LED indicator lights for Fan Operation and Lockout Mode.
- Panel Type:
- Single Controler Panel
- Display:
- No Display
- Controller Type:
- Make-Up Air
- Communication:
- Modbus RTU (RS485)
