OPERATING MANUAL ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ Model 34134Z Refrigerant Unit Recover, Recycle, and Recharge
LISTED Recover, Recycle, and Recharge Unit Model: 34134Z Refrigerant: R-134a Voltage: 115, 60 Hz 80S2 Recycling Equipment Design Certified by Underwriters Laboratories Inc.® for Compliance with SAE-J2210 (1991) for HFC-134a SAFETY DEFINITIONS: Follow all WARNING, CAUTION, IMPORTANT, and NOTE messages in this manual.
Table of Contents Safety Precautions ....................................................... inside front cover Introduction ......................................................................................... 2 General Description ......................................................................................... 2 Glossary of Terms ............................................................................................ 2 Component Identification and Location ................................
Introduction General Description INST0999 The 34134Z recovers, recycles, and recharges vehicle refrigerant in one hookup. It is compatible with existing service equipment and standard service procedures. Throughout this manual U.S. measurements are used with metric equivalents in parenthesis. Glossary of Terms A/C System — The vehicle air conditioning system being serviced. Hose Storage Fittings — When not in use, the R-134a service hose fittings can be connected to these fittings for storage purposes.
Introduction Component Identification and Location Control Panel Unit Front View Tool Tray Vacuum Pump Oil Inject Bottle Internal Storage Vessel Oil Drain Bottle Weight Scale INST1000 Unit Side View Hood Operating Manual Compartment Hose Storage Fittings Power Cord Service Hoses Source Tank Strap Source Tank Compartment INST1006 Recover/Recycle/Recharge Unit 3
Introduction Component Identification and Location contd.
Introduction Component Identification and Location contd. Control Panel High-Side Gauge Start/Stop Key Mode Key Display Screen Up Arrow ISV Pressure Gauge Low-Side Gauge Down Arrow High-Side Panel Valve ISV Temperature Display (Valves shown closed) Low-Side Panel Valve Temp/Pressure Chart ON/OFF Power Switch Oil Inject Button I Oil Drain Valve O Low-Side Valve — controls the flow between the A/C system’s low side and the unit.
Initial Setup WARNING This manual contains important procedures concerning the setup, operation, and maintenance of the unit. Read and follow all warnings at the beginning of this manual. Do not operate the unit until you have read and entirely understand the contents of this manual. If you do not understand any of the contents of this manual, notify your supervisor.
Initial Setup Adding Vacuum Pump Oil After registering the unit, use the following steps to add oil to the vacuum pump. IMPORTANT: For maximum unit performance, change the vacuum pump oil after every 10 hours of operation. (The unit will prompt a vacuum pump oil change after every 10 hours of operation. 1. Plug the unit’s power cord into a correct voltage outlet. Oil Filler Cap and Tube (included in accessory kit) Oil Fill Port Oil Sight Glass CAUTION! Avoid using an extension cord.
Initial Setup Adding Vacuum Pump Oil contd. Note: The unit’s weight default is in pounds. To change to kilograms: 1. Press the Up and Down arrow keys at the same time. UNITS LBS will be displayed. 2. Press the Up or Down arrow key to toggle to KG. 3. Press Mode key until display reads EXIT. 8 NOTE: At this time, the unit is also automatically evacuating all air from the unit. 7. With the vacuum pump running, slowly add oil until the level rises to the center of the oil sight glass. 8.
Initial Setup Adding Refrigerant to the Internal Storage Vessel Add refrigerant to the internal storage vessel (ISV) after adding oil to the vacuum pump. After the initial refrigerant fill, refill the ISV as necessary. (Refer to Adding Additional Refrigerant to the ISV in this manual.) WARNING Wear safety goggles when working with refrigerant. All hoses may contain liquid refrigerant under pressure. Disconnect hoses using extreme caution.
Initial Setup Adding Refrigerant to the Internal Storage Vessel contd. 1. Connect the low-side tank adapter (from the accessory kit) to the liquid valve on the refrigerant source tank. NOTE: If using a refillable source tank, connect the tank adapter to the vapor valve. R-134a Tank Adapter 2. Connect the service coupler of the low-side hose (blue) to the refrigerant source tank. 3. Open the valve on the source tank, and place the tank upside down in the source tank compartment.
Initial Setup Adding Refrigerant to the Internal Storage Vessel contd. 7. Press the Start/Stop key. The internal storage vessel begins filling, and the screen displays the amount of refrigerant being transferred to the internal storage vessel. 8. The unit will automatically stop when 15 lbs. (7 kg) has been transferred to the internal storage vessel. The display will flash between: RECOVER XX.XXKG and DRAIN OIL NOTE: Do not drain oil until the following steps are complete.
Initial Setup Changing the Temperature Scale (Fahrenheit or Celsius) The temperature scale is set to Fahrenheit at the factory. Use the following steps to toggle the temperature scale to Celsius. 1. Disconnect the unit’s power cord from the outlet. WARNING High voltage electricity inside the unit has a risk of electrical shock. Disconnect the power before servicing the unit. 2. Remove the four screws that secure the top section of the unit’s protective covering and remove the covering. 3.
Operation WARNING This manual contains important procedures concerning the setup, operation, and maintenance of the unit. Read and follow all warnings at the beginning of this manual. Do not operate the unit until you have read and entirely understand the contents of this manual. If you do not understand any of the contents of this manual, notify your supervisor. If the operator cannot these instructions, all instructions and safety precautions must be read and discussed in the operator’s native language.
Operation Operating Guidelines contd. • During operation, any of the following messages may appear on the display screen. If a message appears, immediately take the appropriate action. CHANGE FILTER — This message appears after every 150 lbs. (68.0 kg) of refrigerant has been recovered, indicating that the filter-drier needs to be replaced. Refer to Replacing the Filter-Drier in the “Maintenance” section of this manual. NOTE: To avoid service delays, keep extra filter-driers on hand.
Operation Recovering the A/C System Refrigerant WARNING Wear safety goggles when working with refrigerant. All hoses may contain liquid refrigerant under pressure. Disconnect hoses using extreme caution. Read and follow all warnings at the beginning of this manual before operating the unit. Do not overfill the internal storage vessel. Overfilling may cause explosion and serious personal injury or death.
Operation Recovering the A/C System Refrigerant contd. 4. Verify the oil drain valve is closed. 5. On the control panel, open both panel valves. 6. Press the Mode key until RECOVER X.XX LBS is displayed. (X.XX is the amount of refrigerant capacity remaining in the internal storage vessel [ISV].) Press the Start/Stop key to begin the recovery operation. Once recovery begins, the RECOVER X.XXLBS changes from the amount in the ISV to the amount being recovered.
Operation Draining the A/C System Oil After recovering the refrigerant from the A/C system, use the following steps to drain the A/C system oil into the unit’s oil drain bottle. Oil Drain Valve Oil Drain Bottle INST0984 Oil Drain Bottle Location 1. Make sure the oil drain bottle is empty. Remove, empty, and replace the oil drain bottle if necessary. NOTE: Dispose of oil according to current local regulations. 2. On the control panel, open the Oil Drain valve.
Operation Evacuating the A/C System After recovering all refrigerant from the A/C system, draining the oil from the system, and making repairs to the A/C system, use the following steps to evacuate (VACUUM) the A/C system. WARNING Wear safety goggles when working with refrigerant. All hoses may contain liquid refrigerant under pressure. Disconnect hoses using extreme caution. Read and follow all warnings at the beginning of this manual before operating the unit. 1.
Operation Replenishing the A/C System Oil Before recharging the A/C system, replenish the A/C system oil. Add only the amount of oil that was removed during recovery. If no oil was removed, do not add any oil. NOTES: • Refer to the A/C system manufacturer for correct oil replacement procedures and oil specifications. • Replacing A/C system components may require adding more oil. Refer to component manufacturer for recommendations. 1.
Operation Purging Air from the Internal Storage Vessel Use the following steps to purge unwanted air from the internal storage vessel. Start/Stop Key Mode Key Display Screen Up Arrow ISV Pressure Gauge Down Arrow ISV Temperature Display Temp/Pressure Chart I O 1. On the control panel, note the internal storage vessel temperature in the ISV temperature display. NOTE: The ISV temperature display can show Fahrenheit or Celsius degrees. Refer to Changing the Temperature Scale in this manual. 2.
Operation Recharging the A/C System Refrigerant WARNING Wear safety goggles when working with refrigerant. Hoses may contain liquid refrigerant under pressure; disconnect hoses using extreme caution. Read and follow all warnings at the beginning of this manual before operating the unit. After replenishing the A/C system oil as necessary and purging the A/C system, use the following steps to recharge the A/C system’s refrigerant.
Operation Recharging the A/C System Refrigerant contd. WARNING Before starting the vehicle’s engine, verify the vehicle is in PARK or NEUTRAL, with the emergency brake ON. To prevent personal injury or death, never run a vehicle without adequate ventilation in the work area. 9. Start the vehicle’s engine, turn the A/C system on for maximum cooling, and do the following: a. Watch the high-side and low-side gauges on the unit’s control panel.
Maintenance Adding Additional Refrigerant to the Internal Storage Vessel Periodically, the internal storage vessel (ISV) will require additional refrigerant. Use the following steps to add refrigerant to the ISV. 1. Connect the R-134a tank adapter to the liquid valve on the refrigerant source tank. 2. Connect the service coupler of the low-side hose (blue) to the adapter. NOTE: If using a refillable source tank, connect to the vapor valve. R-134a Tank Adapter 3.
Operation Adding Additional Refrigerant to the Internal Vessel contd. 12. Do the following to clear the service hoses: a. Press Mode key to: RECOVER XX.XXLBS b. Press Start/Stop key to start hose clearing. c. Watch the low-side gauge. When the gauge pressure reaches 10 in. Hg (34 kPa) vacuum, press Start/Stop key to stop the clearing process. 13. Close the low-side panel valve. Drain Oil 1. On the control panel, open the oil-drain valve. Watch the oil drain into the oil-drain bottle.
Maintenance Changing the Vacuum Pump Oil For maximum unit performance, change the vacuum pump oil after every 10 hours of operation. The unit keeps track of vacuum pump running time and will notify the user on the display screen when it is time to change oil. For optimum performance, use only Robinair Premium High Vacuum Oil. Use the following steps to change the vacuum pump oil. Oil Fill Port Sight Glass INST0983 Oil Drain Port Vacuum Pump 1.
Maintenance Resetting Oil Time Every time the vacuum pump oil is changed, the vacuum pump oil timer should be reset. Use the following steps to reset the oil timer. 1. Simultaneously press and hold the Up and Down arrow keys until the display shows UNITS LBS (KG). 2. Press the Mode key until the screen displays OIL XXX (XXX is minutes). 3. Simultaneously press and hold the Up and Down arrow keys until the screen displays OIL 600 (minutes). 4. Press Mode key until EXIT displays.
Maintenance Replacing the Filter-drier The filter-drier inside the unit removes acid, particulates, and moisture from refrigerant during the recovery function. To provide adequate contaminant and moisture removal, the filter-drier must be replaced after every 150 lbs. (68 kg) of refrigerant recovered. The following will appear in the display: CHANGE FILTER Use the following steps to replace the filter-drier. NOTE: For maximum unit performance, use only No. 34430 SPX/ROBINAIR filter-drier.
Maintenance Replacing the Filter-drier contd. WARNING High voltage electricity inside the unit has a risk of electrical shock. Disconnect the power before opening the back door or servicing the unit. 9. Open the back door of the unit’s protective covering. To unlock the door, turn the two screws 1/4 turn counterclockwise. Filter-Drier INST1001 Filter-drier Location (Back View of Unit) 10. Remove the strap, disconnect the fittings from the filter-drier, and remove the filter-drier.
Maintenance Resetting the Filter-drier Capacity The unit keeps track of the filter-drier’s remaining capacity. As the unit filters refrigerant, the remaining capacity decreases from 150 lbs. (68 kg) to zero. When the capacity reaches zero, the unit will display: CHANGE FILTER Use the following steps to reset the filter-drier’s capacity. 1. Plug the power cord into a correct voltage outlet, and turn the unit on. 2.
Maintenance Checking for Leaks Over time, fittings can loosen as the unit is used and moved. During normal use, inspect the unit for leaks at a minimum of every three months (or as specified by current federal, state, and local regulations). Use the following steps to check the unit for leaks. NOTE: The manufacturer does not reimburse for lost refrigerant. 1. Remove the power cord from the outlet. WARNING High voltage electricity inside the unit has a risk of electrical shock.
Maintenance Calibrating the Weight Scale The unit’s weight scale is calibrated at the factory and requires no further calibration. NOTE: If the message OVERLOAD appears on the display screen on the control panel, the weight of the internal storage vessel is too high, or the unit’s weight scale is damaged, disconnected, or out of calibration. Call a qualified service technician. Cleaning the Unit On a regular basis, wipe off the unit with a clean cloth to remove grease, dust, or other dirt.
R-134a Temperature / Pressure Table Conversion Table OZ. LBS. 0.5 0.03 1.0 0.06 1.5 0.09 2.0 0.13 2.5 0.16 3.0 0.19 3.5 0.22 4.0 0.25 4.5 0.28 5.0 0.31 5.5 0.34 6.0 0.38 6.5 0.41 7.0 0.44 7.5 0.47 8.0 0.50 8.5 0.53 9.0 0.56 9.5 0.59 10.0 0.63 10.5 0.66 11.0 0.69 11.5 0.72 12.0 0.75 12.5 0.78 13.0 0.81 13.5 0.84 14.0 0.88 14.5 0.91 15.0 0.94 15.5 0.97 16.0 1 lb. 32 Temperature F C 45 7.2 47 8.3 49 9.4 51 10.6 53 11.7 55 12.8 57 13.9 59 15.0 61 16.1 63 17.2 65 18.3 67 19.4 69 20.6 71 21.7 73 22.8 75 23.
Limited Warranty Robinair Limited Warranty Statement Rev. November 1, 2005 This product is warranted to be free from defects in workmanship, materials, and components for a period of one year from date of purchase. All parts and labor required to repair defective products covered under the warranty will be at no charge. The following restrictions apply: 1. The limited warranty applies to the original purchaser only. 2.
% Visit our web site at www.robinair.com or Call our Toll-Free Technical Support Line at 800-822-5561 in the continental U.S. or Canada. In all other locations, contact your local distributor. To help us serve you, be prepared to provide the model number, serial number, and date of purchase of your unit. To validate your warranty, complete the warranty card attached to your unit, and return it within ten days from date of purchase.
