OPERATION & MAINTENANCE MANUAL TC670E Refrigerant Handling System RTI Technologies, Inc. 10 Innovation Drive. York, PA 17402 USA 800-468-2321 www.rtitech.
TC670E CONVERTIBLE RECYCLING MACHINE This Recycling Machine was manufactured by RTI in compliance with all applicable Underwriters Laboratories (UL) and Society of Automotive Engineers (SAE) Standards and Specifications for Refrigerant Recycling Equipment. Your machine is initially configured to recycle R12 or R134a. An RTI Retrofit Kit is available for field conversion of this machine to recycle the alternate refrigerant for which it is now configured.
TABLE OF CONTENTS TC670E Start-Up Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 Safety Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 Filling the Charging Cylinder . . . . . . . . . . . . . . . . . . . . . . 6 Recover/Recycle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 Oil Drain & Air Purge . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 Deep Vacuum . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
RTI Technologies, Inc. START-UP INSTRUCTIONS 1) Check for any shipping damage. Place a claim with carrier if damage is discovered. 2) Complete and return the Warranty Card to activate Technical Support and Warranty Coverage. Warranty claims can not be honored without this warranty card on file. BEFORE USING THE TC670E Check for any shipping damage. Place a claim with carrier if damage is discovered. DO NOT USE A DAMAGED UNIT.
RTI Technologies, Inc. SAFETY PRECAUTIONS ! Recover, Recycle, and Charge only the refrigerant for which the machine is configured. ! Wear safety glasses and protective gloves. Refrigerant has a very low boiling point and can cause frostbite. ! Follow the TC670E operating procedures sequentially to avoid prematurely disconnecting hoses or opening valves which may release refrigerant to the atmosphere. ! Do not expose the TC670E to moisture or operate in wet areas.
RTI Technologies, Inc. L CAUTION 7 Avoid breathing refrigerant or lubricant vapor or mist. Exposure may irritate eyes, nose and throat. If accidental system discharge occurs, ventilate work area before resuming service. Additional health and safety information may be obtained from refrigerant and lubricant manufacturers. Special Considerations with R134a R134a has been shown to be nonflammable at ambient temperature and atmospheric pressure.
RTI Technologies, Inc. FILLING THE CHARGING CYLINDER A/C Systems requiring service often do not have a full charge of refrigerant. To avoid unnecessary repositioning of hoses it is recommended that the TC670E be filled until about 3 pounds of liquid refrigerant can be seen in the Charging Cylinder Sight Glass. The Sight Glass is visible through a slotted opening on the front of the TC670E. Figure 1 Filling the Cylinder To fill the TC670E Charge Cylinder, refer to Figure 1 and follow these steps: 1.
RTI Technologies, Inc. RECOVER/RECYCLE Figure 2 Recover/Recycle To Recover/Recycle, refer to Figure 2 and follow these steps: 1. Attach Red and Blue Hoses to the A/C system per the vehicle manufacturer's instructions. Note For R134a Machines Field Service Couplings on the ends of Service Hoses are of a special design. The valves have LEFT HAND threads which makes operation opposite to that of others. To Close... Turn Counter-clockwise To Open...
RTI Technologies, Inc. ! DO NOT TURN THE TC670E OFF OR DISCONNECT HOSES ! A small quantity of Liquid refrigerant will probably still remain in the A/C System. This can be detected by observing an increasing pressure reading on the Low Side Gauge. As pressure increases to a preset level, the TC670E will automatically cycle on and off to continue recovering refrigerant. Allow this automatic sequence to repeat until the vacuum level remains constant for at least 2 minutes. ... NOTE ...
RTI Technologies, Inc. OIL DRAIN & AIR PURGE Oil and Non-condensable Gas (Air) are separated from the recovered refrigerant and MUST be removed following EACH recycling procedure as follows: 1. MOMENTARILY press the top of the Purge Switch and hold until the pressure reading on the Pressure Gauge above this button drops one small graduation mark (approximately 10 PSIG). 2.
RTI Technologies, Inc. VACUUM If the A/C System is "opened" for replacing components, it is important to draw a vacuum on the system before recharging with refrigerant. The following steps should be followed: Figure 3 Vacuum To Vacuum the A/C System, refer to Figure 3 and follow these steps: 1. Connect Red and Blue Hoses to the high and low sides of the A/C System. 2. Open Low and High Gauge Valves. 3. Open Red and Blue Hose Valves. 4. Press top (ON) of rocker switch marked DEEP VACUUM. 5.
RTI Technologies, Inc. HOSE EVACUATION It's important that Air not be introduced into the A/C System during a Charging procedure. If a Deep Vacuum procedure was performed previously, the following Hose Evacuation Procedure is not required. If the service valves on the hoses have been open, the following procedure must be performed: Figure 4 Hose Evacuation To Evacuate Hoses, refer to Figure 4 and follow these steps: 1. Close Red and Blue Hose Valves. 2. Open High and Low Gauge Valves. 3.
RTI Technologies, Inc. CHARGE - HIGH SIDE Figure 5 Charge - High Side To Charge Refrigerant, refer to Figure 5 and follow these steps: 1. Perform Hose Evacuation described previously. 2. Connect Red Hose to the A/C System high side per the vehicle manufacturer's instructions. Do not open the hose valve. 3. Press top (ON) of rocker switch marked CHARGE/HIGH SIDE. The Charge Cylinder will now be heating to develop pressure for charging. 4. Open High Gauge Valve.
RTI Technologies, Inc. EXAMPLE: The level of liquid visible in the TC670E Charging Cylinder Sight Glass is 7.4 lbs. and the A/C system capacity is 3.2 lbs. The following calculation results... (7.4) - (3.2) = 4.2 Therefore, the sliding indicator should be set at 4.2 lbs. in this example. When the liquid level lowers to the 4.2 lb. mark, a charge of 3.2 lbs. will have been delivered NOTE... The Sight Glass on the Charging Cylinder has markings for both R12 and R134a.
RTI Technologies, Inc. SCHEDULED MAINTENANCE MONTHLY ... Clean the Condenser to maintain high efficiency performance of the TC670E. Disconnect power and remove the Compressor Compartment Cover and blow compressed air through the cooling fins of the Condenser to remove any debris. Do not bend the fins on the Condenser coil. Air flow will be restricted and cause damage to the TC670E. Replace the Compressor Compartment Cover before applying power to the TC670E.
RTI Technologies, Inc. PROBLEMS & SOLUTIONS On rare occasion the TC670E may seem to be performing differently or not at all. Experience has shown that varying operating conditions can affect the performance characteristics of the TC670E. The temperature of the vehicle A/C System will affect how the TC670E performs. Following are typical problems with explanations of the possible cause and solution. PROBLEM: My TC670E worked fine all last Summer.
RTI Technologies, Inc. PROBLEM: I turned a 30 lb. cylinder of new refrigerant up-side-down to pre-charge the Charging Cylinder with liquid. The Charging Cylinder didn't fill and now the TC670E won't recover from an A/C system. SOLUTION: The TC670E has been overloaded with liquid refrigerant (See Safety Precaution Section at the beginning of this manual). ... WARNING ... IF A CYLINDER IS TURNED UP-SIDE-DOWN, THE T C 6 7 0 E W I L L O V E R FI LL W I T H L I Q U I D REFRIGERANT.
RTI Technologies, Inc.
RTI Technologies, Inc.
RTI Technologies, Inc.
