Electronic control with A2L leak detection
11th October 2024
USA: The new Penn System 550 modular electronic control solution from Johnson Controls combines temperature, humidity and pressure control with A2L refrigerant leak detection and mitigation technology.
It is said to be the first of its kind to include A2L refrigerant leak sensing and mitigation functionality and optional two-way cloud connectivity.
Johnson Controls’ global product manager Keith Gifford said that the System 550 would enable US users to comply with the latest A2L refrigerant leak detection and mitigation regulations.
The A2L refrigerant sensors are said to have the fastest response time to detect refrigerant leaks and ensure the safety of occupants while minimising system downtime and product loss.
Authorised users can easily monitor HVACR system performance and review and change System 550 menu settings by subscribing to the Controls System Cloud.
When a refrigerant leak is detected, the technician is notified of exactly which A2L refrigerant sensor detected the leak through Modbus communications, further simplifying and expediting maintenance and repairs.
System 550 is designed so that in the future, sensors for detecting A3 refrigerant leaks can be used, preparing for the future as low-GWP refrigerant regulations continue to evolve.
The modular electronic control system allows up to six A2L sensors to be connected to a C550CCN control module, and up to 10 relay and/or analogue outputs can be added through plug-in expansion modules without the need for field wiring.
