Specifications on this page are taken from the Prolon Water Loop Controller datasheet, REV 7.3.1 / PL-DATA-C1050WLC-C/F-EN.
The PL-C1050-WLC holds a condenser water loop between its heating and cooling limits. It controls a boiler and a water tower with an internal pump based on supply temperature, from one controller and one set of sensors.
The bypass valve is controlled off return temperature, and up to two water tower cooling stages are available, one of which can be modulating. A water tower damper sequence is also available.
The triac outputs are specified as 10-30 VAC source or dry contact, and the analog output as 0-10 VDC, 40 mA max.
Best For
- Water loops comprised of a boiler and a water tower with an internal pump
- Loops using bypass valve control from return water temperature
- Up to 2 water tower cooling stages, one of which can be modulating
Key Features
Boiler and tower from one controller
Controls a boiler and a water tower with internal pump based on supply temperature.
Bypass valve on return temperature
The bypass valve is controlled by return water temperature.
Two tower cooling stages
Up to 2 water tower cooling stages, one of which can be modulating.
Tower damper sequence
A water tower damper sequence is also available.
Source or dry contact outputs
4 triac outputs, 10-30 VAC source or dry contact, 300 mA max, with resettable fuse.
Stand-alone or networked
Operates stand-alone or networked with up to 127 nodes, with remote configuration and visualization in Prolon Focus.
Technical Specifications
| Specification | PL-C1050-WLC 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 dry contact, 300 mA max (resettable fuse) |
| Analog Output | 1 output 0-10 VDC, 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 (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, FCC part 15: 2012 class B, RoHS |
Documentation
Frequently Asked Questions
- Controller Type:
- Water Loop
- Digital Outputs:
- 4
- Analog Outputs:
- 1
- Analog Inputs:
- 3
- Digital Inputs:
- 1
- Communication:
- Modbus RTU (RS485)
