OPERATION & MAINTENANCE MANUAL 750-SP1 UNDP RTI Technologies, Inc. 4075 East Market Street York, Pennsylvania, 17402 USA Phone: 717-840-0678 Fax: 717-755-8304 www.rtitech.com rti@rtitech.
TABLE OF CONTENTS Before Using & Safety Precautions . . . . . . . . . . . . . 2 Preparing the Outlet Cylinder . . . . . . . . . . . . . . . . . 3 Setting Up the 750-SP1 to Recycle . . . . . . . . . . . . . 4 Recycling Refrigerant . . . . . . . . . . . . . . . . . . . . . . . 5 When Inlet Cylinder is Empty . . . . . . . . . . . . . . . . . 6 Removing Air from Outlet Cylinder . . . . . . . . . . . . . 7 Pressure - Temperature Table . . . . . . . . . . . . . . . . 8 Scheduled Maintenance . . . . . . . . . . .
BEFORE USING SAFETY PRECAUTIONS Check for any shipping damage. Place a claim with carrier if damage is discovered. ! Recover, Recycle, and Charge only the refrigerant for which this machine is configured. DO NOT USE A DAMAGED UNIT. The machine should not be operated or serviced by any person who has not read all the contents of this manual. Failure to read and comply with these instructions or any one of the limitations noted herein can result in serious injury and/or property damage.
PREPARING THE OUTLET CYLINDER 1. Connect one end of a Yellow Hose to the Liquid Port of the Outlet Cylinder. 2. Connect other end of the Yellow Hose to a Deep Vacuum Pump. 3. Close Vapor Valve. 4. Open Liquid Valve and valve on Yellow Hose. 5. Connect Vacuum Pump to power source. 6. Draw a vacuum on the Outlet Cylinder for one hour. 7. Close Outlet Cylinder Liquid Valve and valve on Yellow hose. 8. Disconnect Yellow Hose from Vacuum Pump and connect to rear access port of the 750-SP1.
SETTING UP THE 750-SP1 TO RECYCLE 1. Connect Pressure Gauge to Vapor Port of Outlet Cylinder. 2. Position Inlet and Outlet Cylinders as shown. 3. Connect OFP Cord to Receptacle on Outlet Cylinder. 4. Connect Yellow Hoses to Inlet and Outlet Cylinders. 5. Open valves on both Yellow Hoses. 6. Open Liquid Valve on Inlet Cylinder and Liquid Valve on Outlet Cylinder. 7. Connect Power Cord to proper voltage supply.
RECYCLING REFRIGERANT 1. Set Mode Selector to RECYCLE. 2. Set Main Switch to RECYCLE/CHARGE. The READY Light will be on. 3. Set Access Valve to RECYCLE. The COMPRESSOR-ON light will be on and the 750-SP1 will begin recovering refrigerant from the Inlet Cylinder. The 750-SP1 is specially designed to process Liquid or Vapor refrigerant. Refrigerant will be purified by the 750-SP1 and collected in the Internal Cylinder.
WHEN INLET CYLINDER IS EMPTY The 750-SP1 will recover and recycle refrigerant from the Inlet Cylinder until it is empty. When all of the refrigerant has been recovered and recycled, the COMPRESSOR-ON light will be off and the 750-SP1 will automatically shut off. Oil which has been removed from the refrigerant must be drained from the 750-SP1 as follows. This procedure MUST be performed after emptying each Inlet Cylinder. 1. Set Main Switch to OFF. 2.
REMOVING AIR FROM OUTLET CYLINDER The Pressure Gauge mounted on the Vapor Port of the Outlet Cylinder should be checked periodically for an indication of excessive Air. The end of the Tee Fitting to which the Pressure Gauge is attached must be capped. All Valve Cores, if any, must be removed from the Tee Fitting. Open the Vapor Valve on the Outlet Cylinder to read the pressure in the cylinder.
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SCHEDULED MAINTENANCE MONTHLY Clean the Condenser to maintain high efficiency performance. Disconnect power and remove the Compressor Compartment Cover and blow compressed air through the cooling fins of the Condenser to remove any debris. It may be necessary to use a soft brush if the fins are excessively dirty. Do not bend the fins on the Condenser coil. Air flow will be restricted and cause damage to the machine. Replace the Compressor Compartment Cover before applying power.
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