Description
Product Summary
The Appion CCT516 5/16" Core Control Tool is a vacuum-rated core depressor that gives the technician precise, adjustable control over a Schrader valve core. Instead of a fixed depressor that simply opens the core, the CCT516 lets you meter the core open and closed by hand, which makes it a precise way to add refrigerant, take accurate pressure readings, and isolate a gauge from the system without pulling hoses.
The body is machined from aircraft-grade aluminum and sealed with a double O-ring design, so the tool holds tight under high-side pressure and in deep vacuum. It is vacuum-rated to 20 microns and designed for high-pressure refrigerants such as R-410A. A 1/4" side port accepts a digital stub gauge or service hose, and an advanced back seat seal allows the gauge to be isolated from the system to protect sensitive instruments. The 5/16" female flare system connection fits the 5/16" service ports found on most ductless mini split systems with no adapter required.
Key Features
- Precision Core Control: Manually depresses and releases the valve core for controlled metering of refrigerant during charging.
- Vacuum Rated to 20 Microns: Double O-ring construction holds deep vacuum and high pressure, so the tool can stay on the port from evacuation through charging.
- Back Seat Seal Gauge Isolation: Seals off the side port from the system to isolate and protect a connected vacuum or pressure gauge.
- 1/4" Side Port: Accepts a digital stub gauge or service hose for fast system diagnostics.
- Low-Loss Connection: Minimizes refrigerant loss when connecting to and disconnecting from the service port.
- Aircraft-Grade Aluminum Body: Lightweight, corrosion-resistant construction built for daily field use.
- Knurled Grip: Knurled silver end provides a positive grip when operating the core with gloves or oily hands.
What's Included
- (1) Appion CCT516 5/16" Core Control Tool
Compatibility
Fits 5/16" flare Schrader access ports typically used on ductless mini split systems. The 1/4" side port and 1/4" male flare outlet accept standard 1/4" refrigerant hoses and Appion MegaFlow hoses, digital stub gauges, and micron gauges with 1/4" flare connections.
Ideal Applications
- Precision charging of residential and light commercial AC and heat pump systems and ductless mini splits
- Servicing high-flow Schrader valves
- Isolating a vacuum gauge during evacuation and decay testing
- Attaching a digital stub gauge for quick pressure diagnostics
- Service vans and maintenance technicians running daily service calls
