Emerson Alco 060255 Indicator

The Emerson Alco 060255 (Model AMI-1TT11) is a high-sensitivity moisture liquid indicator designed for critical monitoring in high-capacity refrigeration systems. This 1 3/8" sweat moisture indicator features extended copper ends, allowing for efficient field brazing without the risk of heat damage to the internal crystal indicator element. Engineered for CFC, HCFC, and HFC refrigerants, it provides real-time diagnostics of the liquid line’s condition, detecting moisture levels as low as 50 ppm to prevent acid formation and compressor failure. With a 650 PSI maximum working pressure, this sight glass offers a large, clear viewing area and a calibrated color-change scale (Green for dry, Yellow for wet) to ensure professional-grade accuracy. The 060255 is the direct 070278-11 replacement, offering a reliable take-apart design for easy maintenance and lens servicing. This Emerson AMI-1TT11 is built with a rugged brass body to withstand thermal stress and vibration in commercial HVACR environments.

• Advanced Moisture Detection: Utilizes a high-accuracy crystal indicator to monitor refrigerant moisture content more effectively than standard paper indicators.
• Enhanced Durability: Solid brass construction and a 650 PSI rating ensure reliable performance in high-pressure HFC and HCFC systems.
• Ease of Installation: The extended ends design protects internal components from high torch temperatures during the 1 3/8" sweat connection process.
• Dual-Purpose Diagnostics: The liquid line sight glass allows for both moisture monitoring and visual confirmation of a full liquid seal to identify refrigerant shortages.
• Direct Replacement Logic: Specifically designed to replace the legacy 070278-11, streamlining repairs for older Emerson and Alco units.

Is the AMI-1TT11 compatible with R-410A?
Yes, this indicator is rated for a maximum working pressure of 650 PSI, making it suitable for high-pressure refrigerants like R-410A, as well as R-22, R-134a, and R-404A.

What do the different colors on the indicator mean?
The calibrated element changes from Green (Dry) to Yellow (Wet). If the indicator shows yellow or chartreuse, the system's filter drier is saturated and must be replaced to prevent acid buildup.

Why use extended ends on this 1 3/8" sweat indicator?
The extended copper tubes move the heat of the brazing process further away from the glass and seals, reducing the risk of cracking the sight glass or damaging the moisture-sensitive crystal during installation.

Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.