Protection and Control Solutions for HVAC Chillers
Keeping your chillers running smoothly.
Key product solutions for your HVAC applications offering both protection and control. Products which carry out the following functions:
Protection of compressors against faults which can occur during installation and through everyday use.
Safety ensuring chiller equipment (and personnel) are protected in the unlikely event of an earth leakage/residual current fault.
Control/Timing to delay the starting of compressors and used for random starting/anti-short cycling operation reducing long term wear and potential damage.
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LXPRC/S/RD
Compressor protection (with delayed restart)
- Prevents rotating in the wrong direction if phases reversed
- Protects against overheating where voltage imbalance may occur
- Protects against "single-phasing" during phase loss
- Selectable nominal voltages for global applications
- Adjustable Restart Delay – Allows powering up of multiple chillers to be staggered therefore reducing the demand on the mains supply
LPMR/AUX
Compressor protection (with Aux. supply)
- Low cost, simple to install and no setting up
- Prevents compressor rotating in the wrong direction
- Protects against overheating where voltage imbalance may occur
- Powered from separate 24VAC auxiliary supply
- Wide operating range 190-600VAC L>L
ELRM44V-30
Earth Leakage protection
- Protection for both personnel and equipment
- Adjustable settings
- Choice of toroid sizes to suit various power supply ampacities/chiller sizes
LXPRC/S/F
Compressor protection (with timer)
- Adjustable delay to prevent compressor shutting down due to momentary voltage fluctuations
- Fixed under/over voltage trip settings protect compressor against detoriation
- Prolongs compressor life
LDOB
Compressor lock out /Anti-short cycle
- Protects compressor against short cycling
- No user adjustments
- Solid state for maximum reliability
