○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ Operating Manual Automatic A/C Charging Station For Refrigerant R-134a Systems Only!
Safety Precautions This equipment is intended for professional use only. The service technician should be familiar with proper servicing of air conditioning systems as well as the dangers and use of refrigerants and pressurized components before using the equipment. ! ▲ WARNING ! ▲ Always wear safety goggles when working with refrigerants. Contact with refrigerants can cause injury. Connecting hoses to the wrong ports may cause personal injury or may damage the equipment.
Introduction ................................................................................................................... 2 Set Up Instructions ....................................................................................................... Preparing the Vacuum Pump .................................................................................. Diagram of Vacuum Pump Components ................................................................. Installing a Refrigerant Tank ..................
Introduction This automatic A/C charging station is designed with you in mind. It is accurate, easy to program, and simple to use. Before using the station, read and understand all instructions and warnings in this operating manual. The 220V 50Hz models have some operating exceptions, which are noted in this operating manual. Set Up Instructions To set up the station for operation, you need to prepare the vacuum pump and install the refrigerant tank.
. Plug the station into the proper voltage outlet, and turn on the MAIN POWER switch. 6. Simultaneously press the ENTER and zero keys on the keypad to access the manual diagnostic mode. 7. Press “1” on the keypad to start the pump. 8. While the pump is running, add enough vacuum pump oil so that the oil level is even with the line on the reservoir’s sight glass. 9. Press “1” or the RESET CYCLE key on the keypad to stop the pump. 10. Replace the black plug on the oil fill port.
Set Up Instructions •Refillable tanks — Leave the tank upright, attach the yellow charging hose to the blue LIQUID valve on the tank, and open the blue valve. 2. Open the ball valve on the yellow charging hose (the open position runs parallel to the hose). Note: Use a maximum tank size of 50 pounds (23 kilograms) with this charging station. 3. Fasten the tank securely with the tank hold-down bracket.
Before operating the 220V 50Hz model, plug the short power cord from the upper control box into the outlet on the lower power box. Plug the main power cord into a 220V 50Hz power source that is free from transients and electrical noise. The chart below summarizes the steps in each of the following sections. TO ATTACH HOSES TO THE SYSTEM 1. Be sure all valves on the manifold are closed. ▲ ! WARNING ▲ ! Connecting hoses to the wrong ports may cause personal injury or may damage the equipment.
Operating Procedures TO RECOVER REFRIGERANT IMPORTANT! Use a recovery unit. Do not vent refrigerant to the atmosphere. 1. Be sure the A/C system is turned off, then connect the yellow hose from the manifold’s center port to your recovery unit’s inlet port. 2. Open the manifold’s red high side valve, blue low side valve, and center valve, and start the recovery unit. Follow the recovery unit’s instructions to recover refrigerant.
If the signal continues and the display does not count down, press the HOLD key and replace the tank as described in “Installing a Refrigerant Tank.” Press the CONT key to complete the automatic cycle, or press RESET to access the program mode. 7. When the automatic cycle is completed, the station beeps once, and the message “CPL” appears on the display, followed by the “HOLD” message. Press any key to access the program mode. TO CHECK FINAL SYSTEM OPERATION 2.
Maintenance Instructions CALIBRATING THE SCALE USING MANUAL DIAGNOSTICS You should also routinely calibrate the scale, if necessary, to assure that the compressor shuts off when the tank is full. You can automatically calibrate the scale through the keypad. The station has internal and manual diagnostic modes. The internal or selfdiagnostic mode checks for entries or pressures outside of normal limits and for certain electrical conditions.
HOW TO USE THE CONTROLS The charging station has various components that control its operating functions. CAUTION! Do not operate the station until you have filled the vacuum pump with oil and removed the exhaust plug from the pump’s handle, as outlined in “Preparing the Vacuum Pump.” 1. SYSTEM DISCHARGE Valve — Lets you depressurize the A/C system. Connect to a refrigerant recovery unit — do not vent refrigerant to the atmosphere. 2.
Additional Operating Guidelines USING THE KEYPAD USING THE DISPLAY PANEL The charging station also has a unique keypad for data entry. It uses only six keys for sequence control, and the LCD display indicates the operating mode. The charging station also displays various messages on the display panel. CAUTION! Do not operate the station until you have filled the vacuum pump with oil and removed the exhaust plug from the pump’s handle, as outlined in “Preparing the Vacuum Pump.
Segment B Messages VACUUM VACUUM VACUUM + PROGRAM + AUTOMATIC + HOLD = Program station for vacuum = Vacuum pump is running = Evacuation complete or interrupted vacuum cycle REFRIGERANT REFRIGERANT REFRIGERANT + PROGRAM + AUTOMATIC + HOLD = Program station for charge = Station is charging A/C system = Interrupted charging cycle Additional Operating Guidelines Quick Reference Chart REFRIGERANT (POUNDS) NUMBER • With PROGRAM, indicates the station is ready to be programmed for the amount of refrigeran
Replacement Parts List The following is a list of replacement parts you may need to service or maintain your automatic charging station. Because of ongoing product improvements, we reserve the right to change design, specifications, or materials without notice.
Symptom Cause Cure No power when POWER switch is on — no display showing • Station unplugged • Plug station into power source • No power at wall outlet • Locate problem with outlet or change outlets • Vacuum pump unplugged • Plug pump into power source • Vacuum time not entered • Program required vacuum time • Defective vacuum pump • Remove and replace pump • Faulty components • Call factory • Transfer stopped or too slow • Start A/C system and pull rest of refrigerant into system (Step 6 i
Temperature — Pressure Relation R-134a Refrigerant (oF) PSI R-34a -20 -15 -10 -5 0 5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100 105 110 115 120 125 130 135 140 -1.8 0 2.0 4.1 6.5 9.1 12.0 15.1 18.4 22.1 26.1 30.4 35.0 40.1 45.4 51.3 57.4 64.0 71.1 78.5 86.7 95.3 104.3 113.9 124.1 134.9 146.3 158.4 171.1 184.5 198.7 213.5 229.2 Conversion Chart Ounces to Hundredths of a Pound Ounce 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 .06 .12 .19 .25 .31 .38 .44 .50 .56 .62 .69 .75 .81 .88 .94 1.
