Specifications on this page are taken from the Prolon Chiller Controller datasheet, REV 7.3.2 / PL-DATA-C1050CHL-C/F-EN.
The PL-C1050-CHL runs a chilled water plant on either air cooled or water cooled chillers. It resets the chilled water supply setpoint, stages the chillers, and sequences the pumps from one controller.
Setpoint reset can follow outside temperature, return water temperature or demand, so the plant is not held at design temperature when the load does not call for it. Lead-lag sequences spread runtime across pumps and chillers.
A chiller lockout based on the entering condenser water temperature limit protects the machines, alongside the configurable temperature limits and minimum delays common to the C1050 line.
Best For
- Air cooled and water cooled chiller plants
- Systems with up to 3 chiller stages
- Loops resetting supply water from outside temperature, return temperature or demand
Key Features
Air cooled and water cooled chillers
The same controller can be used for both air cooled chillers and water cooled chillers.
Up to three chiller stages
Controls up to 3 chiller stages, being multiple chillers or a single multistage chiller.
Three-way setpoint reset
Supply water setpoint reset based on outside temperature, return temperature, or demand.
Chiller lockout on condenser water
Chiller lockout based on an entering condenser water temperature limit.
Pump and chiller lead-lag
Various lead-lag sequences are available for the pumps and the chillers, plus a configurable pump exercise sequence.
Protected outputs
All 4 digital outputs and the analog output are protected by resettable fuses.
Technical Specifications
| Specification | PL-C1050-CHL Value |
|---|---|
| Supply | 24 VAC ±10%, 50/60 Hz, Class 2 |
| Power | 2 VA (consumption), 32 VA (input) |
| Inputs |
|
| Digital Outputs | 4 triac outputs, 10-30 VAC source or sink, 300 mA max (resettable fuse) |
| Analog Output | 1 output 0-10 VDC / 2-10 VDC / 0-5 VDC, 40 mA max (resettable fuse), for the valve |
| Indication Lights (LED) | State of each output / Communication / Supply / 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 (16 AWG max) |
| Dimensions | 6.2 in x 5.2 in x 2.5 in (157 mm x 132 mm x 64 mm) |
| Weight | 0.85 lbs (0.39 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
- Controller Type:
- Chiller
- Digital Outputs:
- 4
- Analog Outputs:
- 1
- Analog Inputs:
- 3
- Digital Inputs:
- 1
- Communication:
- Modbus RTU (RS485)
