Specifications sourced from Prolon datasheet PL-DATA-M2000HPS-C/F-EN, REV 7.3.0. Verified September 18, 2026.
Overview
The M2000 HPS controls air-to-air and water-to-air heat pump units in unitary applications driven by a single space temperature sensor. It stages up to 2 compressors and 2 auxiliary heating stages, and adds economizer, preheating, emergency auxiliary heating, and static pressure functions. It operates stand-alone or networked up to 127 nodes over Modbus RTU, and all 9 analog inputs are individually configurable for thermistor, dry contact, 4-20mA, or 0-5 VDC.
Best For
- Unitary heat pump units controlled from one space temperature sensor
- Air-to-air or water-to-air heat pumps, selectable in configuration
- Single-unit installations that do not need zone group management
- Stand-alone units that may later join a Modbus RTU network
Warranty and Sourcing
Key Features
Single space sensor
Designed for unitary systems using a single space temperature sensor.
Air-to-air or water-to-air
Configurable to run in either air-to-air or water-to-air mode.
2 compressor stages
Controls up to 2 compressor stages and 2 stages of auxiliary heating.
Economizer and preheat
Economizer, preheating, emergency auxiliary heating, and static pressure functions are available.
Configurable inputs
9 analog inputs individually configurable for thermistor, dry contact, 4-20mA, or 0-5 VDC.
Unoccupied sequences
Configurable unoccupied mode sequences with an internal clock, schedules, and calendars.
- Stand-alone or networked (up to 127 nodes)
- A manual/off/auto switch for each of the eight outputs
- 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
| Specification | PL-M2000-HPS |
|---|---|
| Supply | 24 VAC +/-10%, 50/60 Hz, Class 2 |
| Power | 5 VA (consumption), 40 VA (input) |
| Inputs | 9 configurable analog inputs (outside temperature / return / supply / zone / water supply / dry contact for clogged filter / schedule override / proof of fan / alarm, room setpoint, static pressure). Input signals (thermistor / dry contact / 4-20mA / 0-5 VDC) individually configurable for each input |
| Digital Outputs | 5 triac outputs, 10-30 VAC source, 300 mA max (resettable fuse) |
| Analog Outputs | 3 x 0-10 VDC outputs, 40 mA max |
| Indication Lights (LED) | State of each output / Communication / Power / State of microprocessor |
| Microprocessor | PIC18F6722, 8 bits, 40 MHz, 128 KB FLASH memory |
| 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 |
| Dimensions | 5.39 in x 4.41 in x 2.25 in (137 mm x 112 mm x 57 mm) |
| Weight | 1.05 lbs (0.48 kg) |
| Environment | -4 to 122 °F (-20 to 50 °C) Non-Condensing |
| Certification | UL916 Energy Management Equipment, CAN/CSA-C22.2, RoHS, FCC part 15: 2012 class B |
Documentation
Frequently Asked Questions
What is the PL-M2000-HPS designed for?
Unitary heat pump systems that control a space using a single space temperature sensor. It runs in air-to-air or water-to-air mode, selected in configuration.
How many compressor stages does the PL-M2000-HPS control?
Up to 2 compressor stages, plus 2 stages of auxiliary heating.
Can the PL-M2000-HPS run on a network?
Yes. It operates stand-alone or networked over Modbus RTU (RS485) with up to 127 nodes, at 9600 through 115200 baud.
What input signal types does the PL-M2000-HPS accept?
Each of the 9 analog inputs is individually configurable for thermistor, dry contact, 4-20mA, or 0-5 VDC.
What supply power does the PL-M2000-HPS need?
24 VAC +/-10%, 50/60 Hz, Class 2. Consumption is 5 VA, with 40 VA input.
- Controller Type:
- Heat Pump
- Digital Outputs:
- 5
- Analog Outputs:
- 3
- Inputs:
- 9
- Communication:
- Modbus RTU (RS485)
- Product Series:
- M2000
