Specifications sourced from Prolon datasheet PL-DATA-M2000HYD-C/F-EN, REV 7.3.0. Verified September 18, 2026.
Overview
The M2000 HYD controls water-to-water heat pumps and hydronic plants. The sequence is selected in configuration, and the roles of the 9 analog inputs follow the sequence chosen: hot and cold tank, dual recovery system, single hot tank with an open or closed boiler loop, or dual energy boilers. It rotates compressors on lead-lag, resets tank setpoints from outdoor temperature, and accepts network provided demands as setpoint offsets. Built-in auxiliary heat sequences and configurable protection limits are included.
Best For
- Water-to-water heat pump plants
- Hot and cold tank systems, including dual recovery arrangements
- Single hot tank plants with an open or closed boiler loop
- Dual energy boiler plants needing outdoor reset on tank setpoints
Warranty and Sourcing
Key Features
Selectable hydronic sequences
Hot and cold tank, dual recovery system, single hot tank with open or closed boiler loop, and dual energy boilers.
Compressor lead-lag
Lead-lag sequences rotate the compressors.
Outdoor reset on tanks
Tank setpoints are reset from outdoor temperature.
Heat/cool priority
Heat and cool priority modes are configurable.
Network demand offsets
Setpoints can be offset by network provided demands.
Auxiliary heat
Built-in auxiliary heat sequences are included.
- Inputs whose roles vary according to the selected sequence
- 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)
- 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-HYD |
|---|---|
| Supply | 24 VAC +/-10%, 50/60 Hz, Class 2 |
| Power | 5 VA (consumption), 40 VA (input) |
| Inputs | 9 configurable analog inputs whose roles vary according to the selected sequence. 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 (resettable fuse) |
| Indication Lights (LED) | State of each output / Communication / Power / State of microprocessor |
| Microprocessor | PIC18F6722, 8 bits, 40 MHz, 128 KB FLASH memory |
| 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 |
| 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 hydronic sequences does the PL-M2000-HYD support?
Hot and cold tank, dual recovery system, single hot tank with an open or closed boiler loop, and dual energy boilers. The roles of the 9 analog inputs vary according to the sequence selected.
Does the PL-M2000-HYD control water-to-water heat pumps?
Yes. It is designed to control a variety of water-to-water heat pumps and hydronic systems, with lead-lag sequences for the compressors.
Can tank setpoints be reset from outdoor temperature?
Yes. The M2000 HYD applies outdoor temperature reset to the tank setpoints, and setpoints can also be offset by network provided demands.
What input signal types does the PL-M2000-HYD accept?
Each of the 9 analog inputs is individually configurable for thermistor, dry contact, 4-20mA, or 0-5 VDC.
What outputs does the PL-M2000-HYD provide?
5 triac digital outputs rated 10-30 VAC source, 300 mA max with a resettable fuse, plus 3 analog outputs at 0-10 VDC, 40 mA max with a resettable fuse.
- Controller Type:
- Hydronic
- Digital Outputs:
- 5
- Analog Outputs:
- 3
- Inputs:
- 9
- Communication:
- Modbus RTU (RS485)
- Product Series:
- M2000
