Fernox 155738-0055 Antifreeze Protector 55 Gallons

Product Description

The FERNOX 155738-0055 Alphi-11 is a glycol-based antifreeze and corrosion inhibitor formulated for long-term protection in hydronic heating and chilled water systems. Supplied at 100% concentration in a 55-gallon container, it guards against frost damage, internal corrosion, and limescale buildup. At a minimum in-use concentration of 25%, it delivers frost protection down to 12.2 degrees F (-11 degrees C). Increasing the concentration to 50% extends protection down to -29.2 degrees F (-34 degrees C). HVAC technicians and mechanical contractors handling closed-loop fluid systems rely on Alphi-11 as both a seasonal antifreeze and a year-round inhibitor treatment.

Alphi-11 is suited for residential and commercial hydronic heating systems, chilled water loops, and geothermal ground-source heat pump circuits. It is designed to protect ferrous and non-ferrous metals commonly found in closed-loop piping, heat exchangers, and coil assemblies. The 55-gallon drum format is practical for commercial installations, large geothermal projects, or service companies treating multiple systems from a single supply. Dilution to the required working concentration is performed on-site prior to charging the system.

Key Features

• Combined antifreeze and corrosion inhibitor in a single glycol-based formula
• 25% concentration provides frost protection to 12.2 degrees F (-11 degrees C)
• 50% concentration provides frost protection to -29.2 degrees F (-34 degrees C)
• Protects against internal corrosion and limescale in closed-loop systems
• Compatible with geothermal, hydronic heating, and chilled water applications
• Supplied at 100% concentration for on-site dilution to required working strength

Compatibility

Designed for use in closed-loop hydronic heating systems, chilled water systems, and geothermal ground-source heat pump circuits. A minimum in-use concentration of 25% is required to maintain effective corrosion protection.

Installation Notes

System charging and fluid treatment should be performed by a licensed HVAC technician or mechanical contractor familiar with closed-loop hydronic systems. Flush and clean the system before introducing the treated fluid to avoid contaminating the inhibitor package. Dilute to the required working concentration using clean water before charging; do not introduce full-concentration fluid directly into an operating system. Verify concentration after charging using a refractometer or appropriate test kit to confirm frost and corrosion protection levels are within specification.

Technical Specifications

• Volume: 55 gallons
• Concentration (as supplied): 100%
• Minimum Working Concentration: 25%
• Frost Protection at 25%: 12.2 degrees F (-11 degrees C)
• Frost Protection at 50%: -29.2 degrees F (-34 degrees C)
• Formula Type: Glycol-based antifreeze and inhibitor
• Weight: 125 pounds

Standard Information

• Brand: FERNOX
• Manufacturer Part Number: 155738-0055