Protect Compressors, Reduce Maintenance, Increase Systems Efficiency

Today’s high-performance refrigeration systems call for high-efficiency suction line heat exchangers that can help to protect compressors and reduce maintenance. They’re specifically designed to transfer heat from liquid as it leaves the condenser on the high pressure side of the system to the vapor leaving the suction line on the low side of the system’s evaporator. Here’s how you benefit from Standard’s SLC & SLS Series:

• Evaporate liquid refrigerant in the vapor stream, reducing the possibility of compressor damage
• Elevate vapor temperature to help prevent suction line frosting and condensation
• Subcool liquid to help eliminate liquid line flash gas
• Increase refrigeration system capacity

Features

• Patented spiral tube design with enhanced surface produces optimum turbulent flow and the highest heat transfer coefficients.
• The tightly-jacketed outer tube works in tandem with the enhanced surface spiral inner tube to produce minimum pressure drop and maximum heat transfer efficiency.
• Two-piece construction with rugged, high-temperature braze joints for fast, easy installation.
• Broad product range includes 10 SLC (copper) models from 1/2 hp to 20 hp, plus 5 SLS (carbon steel) models from 25 to 50 hp.
• Custom designs in copper or carbon steel are available to precisely fit your most exacting application requirements.
• All models are UL and CSA listed.

SLS & SLC Selection

Nominal SLC and SLS selections should be based on system horsepower. This should provide a nominal 10° F subcooling and a nominal 20° F suction superheat for R-22 and R-502, at 110° F condensing, 25° F suction. (ex. A 3 hp system requires an SLC-3) Do not select an undersized model to avoid high suction pressure drops and gas whistling. Models selected based on system hp and liquid line sizes are applicable for standard low, medium, and high temperature refrigeration systems.

Oversized models can provide additional liquid subcooling, and suction superheat. However, proper compressor performance can only be attained if the suction gas temperature to the compressor is not raised above 65° F.