BROYCE CONTROL HVAC SOLUTIONS Passionate about protection and control MONITORING, CONTROL & PROTECTION SOLUTIONS FOR SCROLL/SCREW COMPRESSORS AIR HANDLING UNITS CHILLERS ROOFTOP SYSTEMS HEAT PUMPS REFRIGERATION SYSTEMS

APPLICATION NOTES ULTIMATE PROTECTION SOLUTIONS 3-Phase Compressor protection (with Aux. supply) Staggered starting of multiple compressors Powered by an external 24V auxiliary source (i.e. from control panel transformer), provides monitoring of the 3-phase compressor supply. Protects compressor against single-phasing (phase loss/blown fuse), rotating in the wrong direction (phase reversal) and overheating (voltage imbalance). Prevents multiple compressors starting simultaneously but adding an intentional delay before starting. Each compressor is fitted with its own 3-phase monitoring relay and...

HEAT PUMPS FIND ME ONLINE: www.broycecontrol.com 3-PHASE MONITORING Compressor Protection (with delayed restart) Key Features: Selectable nominal voltages - 2 ranges available 200 - 240VAC or 380 - 460VAC L>L Monitors own supply - detects if phases exceed the fixed Under or Over voltage trip levels Detects incorrect phase sequence and loss Adjustable Restart time delay (1 - 500s) Benefits: ü Protects compressor against loss of phase (single-phasing) and reverse running ü Choice of selectable nominal voltages for global applications ü Adjustable Restart delay - allows for staggering of multiple...

SOLUT HVAC Earth Leakage Protect installations against injury to personnel and damage to equipment due to earth leakage faults. FURTHER SOLUTIONS Monitoring relays for under or over voltage and current sensing. Benefits: ü Maximises safety Benefits: ü Protect compressors and motors from single phasing and current unbalance ü Multi-voltage supply FIND ME ONLINE: www.broycecontrol.com FIND ME ONLINE: www.broycecontrol.com Customised Solutions Choice of timing relays for control of specific HVAC equipment such as compressors, exhaust fans, etc. Need something different for your HVAC application?...