Mastercool 53123-A Refillable Universal Dye/Oil Injector

The Mastercool 53123-A Refillable Universal Dye/Oil Injector is an essential tool for professional air conditioning maintenance, designed for both automotive and HVAC systems. This high-quality injector allows technicians to efficiently introduce dye or oil into A/C systems through the low-side service port, ensuring accurate diagnostics and system performance. Built with durability and ease of use in mind, the 53123-A is a reliable choice for UK-based A/C professionals.

Key Features

• Versatile Application: Suitable for injecting both dye and oil into automotive and HVAC A/C systems.
• Refillable Design: Reusable injector reduces waste and allows for easy refilling with dye or oil.
• Precise Injection: Delivers accurate amounts of dye or oil with a simple handle-turn mechanism.
• Robust Construction: Engineered for long-term use in professional environments.
• Easy Connection: Attaches securely to the low-side service port for quick setup.

How It Works

The Mastercool 53123-A simplifies injecting dye or oil into A/C systems. Follow these steps for safe and effective use:

Purging Air from the Hose

Before first use, remove air from the hose to ensure accurate injection:

• Hold the injector assembly upward.
• Turn the handle clockwise to push dye or oil through the hose, displacing air.
• Use a pen to press the coupler’s depressor to release air until dye or oil appears at the coupler’s end.
• Repeat as needed to eliminate all air (required only once during initial setup).

Injecting Dye

• Ensure the A/C system and engine are off.
• Connect the injector to the low-side service port.
• Hold the injector body and use the starting line on the handle as a guide.
• Turn the handle clockwise to inject one application of dye:
  • Concentrated Dye: Approximately 1 to 1.25 turns.
  • Standard Dye: Approximately 3.5 turns.
• Disconnect the injector and clean any excess dye from the service port.

Injecting Oil

• Follow the same purging process as for dye.
• Ensure the A/C system and engine are off.
• Connect the injector to the low-side service port.
• Turn the handle clockwise to inject 1/4 oz of oil (approximately 3.25 turns).
• Disconnect and clean any excess oil from the service port.

Application Guidelines

System Type	Recommended Application
Automotive A/C	1 application per system (for systems using up to 10 oz [300 ml] of lubricant)
HVAC	1 application per system (for systems using up to 7 lbs [3.2 kg] of refrigerant)

Safety Instructions

Always follow these safety precautions to prevent injury or damage:

• Wear safety glasses and gloves when injecting dye or oil into a pressurised system.
• Never breathe refrigerant vapours.
• Do not touch the lens of the UV light, as it becomes very hot during use.
• Always wear UV glasses when using the UV light for leak detection.
• Ensure the A/C system and engine are turned off before connecting the injector.

Why Choose the Mastercool 53123-A?

The Mastercool 53123-A stands out for its ease of use, precision, and durability. Whether diagnosing leaks with dye or maintaining system lubrication with oil, this injector delivers consistent results. Its compatibility with concentrated and standard dyes and oils makes it a versatile addition to any A/C technician’s toolkit. Available at Airconspares.com, this tool is ideal for UK professionals seeking reliable, high-quality equipment.

Compatibility

The 53123-A is designed to work with Mastercool’s dyes and oils, ensuring optimal performance. Always use manufacturer-recommended products to maintain system integrity and achieve the best results.