OPERATION MANUAL RTI RHS650 RTI TECHNOLOGIES, INC.
Table of Contents Components . . . . . . . . . . . . 2 Test . . . . . . . . . . . . . . . . . . 4 Recovery/Recycling . . . . . . 5 Evacuation . . . . . . . . . . . . . 7 Charging . . . . . . . . . . . . . . 8 Maintenance . . . . . . . . . . .
COMPONENTS 1-4 Valves 1 to 4 5 Pressure Gauge - High Side 6 Vacuum Gauge 7 Process Switch 8 Cylinder Full Lamp 9 Recovery/Recycling Lamp 10 Operation Time Indicator 11 Main Switch 12 Pressure Gauge - Low Side Page 2
COMPONENTS 13 Low Pressure Connection 14 High Pressure Connection 16 High Pressure Hose - Red 17 Low Pressure Hose - Blue 18 Oil Drain Valve 19 Oil Cup 250 ml 22 Sight Glass 23 OFP Cord (External Cylinder) 24 OFP Park Connection (No External Cylinder) Page 3
TEST The test function is necessary to check the A/C system. 1. Close all valves ( valve l, 2, 3, 4 and 18 ) 2. Connect high pressure and/or low pressure hoses to the A/C system and open the service hose valves. 3. Set the process selector on TEST and switch on main switch. 4. Turn on the A/C system and read the pressure on the high and low pressure gauges. The correct pressures are stated in the instructions of the vehicle manufacturer.
RECOVERY / RECYCLING Select the RECOVERY/RECYCLING process to drain refrigerant from the A/C system prior to repair or service. 1. Make sure that all valves are closed, then connect high and low pressure hoses to the A/C system and open the service hose valves. 2. Set the process selector to RECOVERY/RECYCLING and turn on main switch. 3. Open valves 1 and 2. If there is refrigerant pressure in the A/C system, the RHS650 will automatically recover it.
RECOVERY / RECYCLING 5. If the charging cylinder becomes full during the RECOVERY/RECYCLING process, the RHS650 stops and the yellow lamp CYLINDER FULL lights up. The charging cylinder must be emptied into an A/C system or a refrigerant cylinder before the process can be continued. See description of the CHARGING process. 6. During the RECOVERY/RECYCLING process, oil might be removed from the A/C system. This oil should be drained from oil drain valve (18) of the RHS650 into the plastic measuring cup.
EVACUATION Prior to charging the A/C system, air and moisture must be evacuated. Air or moisture in the A/C system may result in poor performance. 1. Make sure that all valves are closed and then connect the high and low pressure hoses to the A/C system and open both service hose valves. 2. Read the pressure in the A/C system on the RHS650 gauges. The pressures in the A/C system must be below 0,2 bar before starting the evacuation procedure.
CHARGING Check the vehicle manual or the label under the hood of the vehicle to determine the required amount of refrigerant. 1. Make sure that all valves are closed and connect the high pressure hose to the A/C system. 2. Open the high pressure hose service valve. 3. Use the o-ring on the refrigerant level tube to mark the level to which the charging cylinder must be drained to ensure that the correct amount of refrigerant is charged. 4.
CHARGING 7. After completion of the charging process, wait approximately 30 seconds, close service hose valves and then remove hoses from the A/C system. 8. The hoses will still contain a small amount of refrigerant. To recover this refrigerant, switch process selector switch to RECOVERY/RECYCLING for a short time and open valves 1 and 2. NOTE: Refrigerant can be transferred from the internal cylinder by connecting the high pressure service hose (red) to the vapor port of the refrigerant cylinder.
MAINTENANCE 23 Oil Level - Compressor 24 Compressor Outlet (High Side) Access Port 25 Service Valve 26 Acid Filter 27 Filter Drier 28 Service Port 29 Oil Charging Cap - Vacuum Pump 30 Oil Level - Vacuum Pump 31 Oil Drain Screw - Vacuum Pump Page 10
MAINTENANCE Always turn off power supply before servicing. For each 25 hours of operation: Check oil level in vacuum pump as follows: Let the EVACUATION process run approximately 3 minutes where high and low pressure hoses are closed and disconnected. Turn off the power supply. 1. Remove grid (four screws) from lower part of station. 2. When the oil level falls below the middle of sight glass 30, remove cap 29 and replenish the oil until the correct level is reached. 3.
MAINTENANCE For each 50 hours of operation - Replace filter drier: Replace filter drier as follows: 1. Close valve 25. 2. Attach hose from low pressure side to service connector 28. 3. Attach hose from Compressor Outlet (High Side) Access Port 24 and an empty refrigerant cylinder with a hand valve. Open hand valve. 4. Open inlet valve 1 on operating panel, set process selector on RECOVERY/RECYCLING and main switch to on. 5.
