Mastercool 89996-MRB 2-Way Piston Valve Manifold for R134a

The Mastercool 89996-MRB 2-Way Piston Valve Manifold is a professional-grade tool designed specifically for automotive air conditioning systems using R134a refrigerant. Engineered for UK technicians, this manifold combines durability, precision, and ease of use, making it an essential addition to any A/C service toolkit. Whether you're testing, charging, or diagnosing automotive A/C systems, the 89996-MRB delivers reliable performance and complies with industry safety standards.

Key Features

• Robust Brass Construction: Built from high-quality brass, the manifold ensures long-lasting durability and resistance to wear during frequent use in demanding workshop environments.
• Precision 63mm Gauges: Factory-calibrated high and low-pressure gauges (red and blue) provide accurate readings for effective system diagnostics. Gauges can be recalibrated using a straight-blade screwdriver if needed.
• E-Z Snap™ Couplers: Quick-connect couplers simplify attachment to A/C systems, locking securely with a snap for leak-free operation. Compatible with both high and low-pressure ports.
• High and Low-Pressure Hoses: Includes colour-coded red (high-pressure) and blue (low-pressure) hoses, designed to withstand the rigours of refrigerant handling.
• Piston Valve Design: The 2-way piston valve system allows precise control of refrigerant flow, ensuring safe and efficient charging and testing processes.
• Safety Compliance: Adheres to the 1990 United States Clean Air Act amendments, requiring trained and certified personnel to operate refrigerant systems, ensuring safe and environmentally responsible use.

Applications

The Mastercool 89996-MRB is ideal for automotive A/C technicians performing a range of tasks, including:

• System Diagnostics: Accurately measure system pressure and refrigerant flow to identify issues such as leaks or blockages.
• Charging: Safely charge R134a refrigerant into A/C systems using the high-pressure valve, with clear gauge readings to monitor progress.
• Testing: Verify A/C system performance after repairs by running the system with the manifold connected and valves closed.
• Evacuation and Recovery: Supports the use of recovery/recycling machines to evacuate refrigerant from hoses, preventing atmospheric release.

Operating Instructions

To ensure safe and effective use of the Mastercool 89996-MRB, follow these steps:

• Close both high and low-pressure valves by turning the knobs clockwise before connecting to the A/C system.
• Attach the red hose to the high-pressure port and the blue hose to the low-pressure port on the manifold.
• Connect the E-Z Snap™ couplers to the compressor’s suction (low) and discharge (high) sides, ensuring a secure snap-lock connection.
• Remove protective caps from system ports and check for leaks before proceeding.
• For charging, use only the high-pressure valve and ensure the low-pressure valve remains closed.
• After charging or testing, disconnect couplers and use a recovery/recycling machine to evacuate residual refrigerant from hoses.
• Always wear safety goggles and gloves when handling refrigerants to protect against exposure.

Important Safety Notes

• Do Not Vent Refrigerant: Releasing R134a into the atmosphere is illegal and harmful to the environment. Always use a recovery/recycling machine.
• Leak Testing and Evacuation: Systems with low refrigerant pressure due to leaks must be fully evacuated, repaired, and re-evacuated to 29” Hg before charging.
• Certified Use: Only trained and certified personnel should operate this manifold to comply with UK and international regulations.

Why Choose Mastercool 89996-MRB?

The Mastercool 89996-MRB stands out for its combination of precision engineering, user-friendly design, and compliance with safety standards. Its robust construction ensures it can handle the demands of daily use in busy UK garages, while the E-Z Snap™ couplers and clear gauges make it easy to achieve accurate results. Backed by Mastercool’s reputation for quality, this manifold is a trusted choice for professionals seeking reliable A/C service tools.

Availability

Order the Mastercool 89996-MRB 2-Way Piston Valve Manifold today from www.airconspares.com. Equip your workshop with a tool designed for efficiency, safety, and performance in automotive A/C servicing.