Robinair owners manual

Replace the access door on the front of the unit. See "Maintenance Instructions" for step-by-step procedures for changing the vacuum pump oil.

Use only authorized refillable refrigerant tanks. Read and follow all warnings at the beginning of this manual before operating the unit.

Ra systems have special fittings per SAE specifications to avoid cross-contamination with R systems. Do not attempt to adapt your unit for another refrigerant system failure will result! A new tank comes with a dry nitrogen charge of 10 to 15 psi to keep it clean and dry during shipment. Purge its nitrogen charge by opening either valve on the tank. Vent the pressure to the atmosphere, then close the valve.

Place the unit tank on the scale platform on the back of the unit. Securely tighten the thumbscrew on the platform to hold the tank in place. Attach the clip of the tank strap to the tank handle. Connect the Quick SealTM end of the yellow hose to the air purge port on the tank. Attach the blue low side hose to the adapter. Open the coupler on the low side hose. Connect the open end of the 36 91 cm red vapor hose to the RED port on the back of the unit. Set Up Instructions 6. Attach the other end of the hose to the BLUE port on the back of the unit.

Before adding refrigerant, you must pull a vacuum on both the unit and the tank for five minutes to remove any air. Open both valves on the tank. Open the low side manifold valve on the control panel. Press 1. The vacuum pump starts and runs continuously until you press any other key. Run the pump for a minimum of five minutes, then press 1 to stop the pump. Close the vapor valve on the tank. Disconnect blue low side hose from the vapor port on the tank.

Remove adapter and replace on the oil drain for storage. Connect the RED hose to the vapor valve on the tank. The 96" cm red high side hose and the 96" cm blue low side hose are not used when adding refrigerant to the tank. Read and follow all warnings given at the beginning of this manual. Disposable tanks have only one valve and most must be turned upside down to transfer liquid as shown in the drawing.

There is only one valve on a non-refillable tank. If you are using a non-refillable tank, follow the instructions on the side of the tank to obtain a liquid supply. Refrigerant Source Tank 3. Unit Tank. Do not use the blue low side hose! Open the red GAS vapor valve on the unit tank. Press 2 to begin transferring refrigerant. The display shows the ADD message for about two seconds, then shows the amount of refrigerant transferred. Transfer stops automatically and the display shows the CPL message when the source tank is empty and has been pulled to 13 in.

This process takes about 30 minutes. The transfer of new refrigerant is limited by weight to leave space about 10 pounds or 4. Then remove the 6 Any non-condensible gases in the tank will be removed during the recycling sequence. The unit is ready for use. Be sure to close both tank valves when the unit is not in use.

Inspect the unit periodically for leaks. The manufacturer does not reimburse for lost refrigerant. Beeper Emits an audible tone to alert you to unit operating functions. The beeper is located on the underside of the control panel below the keypad. Digital Display Shows the time programmed for vacuum and the weight of refrigerant programmed for recharging. Detailed instructions for programming the digital display follow this section.

Hg from the filter and low side of the unit. Operating Guidelines Segment A Indicates in which mode the unit is operating: PROGRAM The unit is in the programming mode, which allows you to program vacuum time and refrigerant weight or to review the existing program. Quick Reference Chart for Segment B Segment C Shows a number or a coded error message on the digital display that indicates the units operating status or any specific problems.

Segment D Indicates that refrigerant is low approximately six pounds or 2. Overview This overview is designed as a quick reference when using your Enviro-Charge unit. Read and follow all warnings in the manual. Connect hoses to vehicle: red to high side port, blue to low side port. Check the manifold gauges.

There must be pressure to recover refrigerant. Open both manifold valves. Open both tank valves. Unit will clear itself of refrigerant and automatically start recovery. The weight of refrigerant is displayed as it is recovered. Unit automatically shuts off and recovery is complete. Unit displays approximate amount recovered. Wait five 5 minutes; watch the gauges. If there is no rise in pressure, recovery is complete.

Drain the oil separator and measure and record the amount of oil drained - it must be replaced with new oil during charging. Both manifold valves and both tank valves should still be open. Recycling begins automatically while the system is evacuated. The unit displays CPL when evacuation is complete. Be sure the appropriate manifold valves are open. Be sure both tank valves are open.

Press CHG. The display counts down to 0, then shows CPL when complete. Close both manifold valves and start the vehicle. Check the gauges and the temperature in the vehicle. Turn off the engine. Open both manifold valves to pull refrigerant from the hoses. At the lowest recommended operating pressure, close the low side valve and turn off the vehicle.

The recovery compressor is not a vacuum pump. We recommend a minimum minute vacuum with more time as required by the system manufacturer. This unit is designed to be used with the manifold gauge set built into the control panel.

Be sure to change the vacuum pump oil when the OIL message appears on the display. Ra systems require special oils in place of the mineral oil used with R systems. These conditions can be potentially dangerous due to the flammable characteristics of gasoline. Always refer to your vehicle manual prior to connection. Before beginning recovery, be sure your unit is set up as shown. Also be sure there is refrigerant in the tank and vacuum pump oil in the vacuum pump. See "Set Up Instructions. Oil Injector 2.

Blue Liquid Hose 4. Red Vapor Hose 5. Tests show more refrigerant is recovered if this action is taken. Turn the system off before proceeding. An adapter package comes with each unit. Connect the units 96 cm red high side hose to the adapter attached to the vehicles high side fitting.

Connect the units 96 cm blue low side hose to the adapter attached to the vehicles low side fitting. Check the manifold gauges on the units control panel they should both register above zero. If there is no system pressure, there is no refrigerant in the system to recover or the hoses are not connected properly. Be sure the oil drain valve is closed. Open both manifold valves on the control panel.

Diagram of Control Panel 5. Connect the power cord to the back of the unit and plug the cord into the proper voltage outlet. Before recovery begins, the unit clears itself of any refrigerant remaining in the various components. Youll know this is occurring because the compressor will start and the CL-L message will display. Sure-Grip The one-piece, molded handle makes it easy to carry the pump to and Handle from job sites, and the handle stays cool to the touch during operation.

Intake Fitting Components 2. Gas Ballast Valve 3. Sight Glass 5. Die-Cast Aluminum Housing 6. Oil Drain. Molded Polycarbonate Base 8. Iso-Valve TM isolates the pump from the system 9. High-Torque Motor Power Switch Through-The-Handle Exhaust Sure-Grip Handle. You can only view or download manuals with. Sign Up and get 5 for free. Remove and discard the exhaust plug from the exhaust fitting.

The pump is shipped without oil in the reservoir. Before starting the pump, fill it with oil. For oil capacities, refer to Pump Specifications in this manual. Turn the motor switch to ON. When the pump runs smoothly, replace the cap on the inlet port. This may take from two to 30 seconds, depending on the ambient temperature. After the pump has run for approximately one minute, check the sight glass for the correct oil level — oil should be even with the sight glass OIL LEVEL line.

With the pump off, add oil if necessary. Note: When the pump is running, the oil level should be even with the line on the sight glass. Do not overfill the internal storage vessel, because overfilling may cause explosion and personal injury or death. Do not recover refrigerants into nonrefillable containers; use only federally authorized refillable containers DOT spec.

Contact with refrigerant may cause personal injury. Wear protective equipment, including safety goggles. Disconnect hoses using extreme caution. Exposure may cause personal injury, especially to the eyes, nose, throat, and lungs. Use the unit in locations with mechanical ventilation that provides at least four air changes per hour. If accidental system discharge occurs, ventilate the work area before resuming service.