O p e r a t i n g M a n u a l Operating Manual for Model 34288 Recovery, Recycling, Recharging Unit
Model 34288 Recovery, Recycling, & Recharging Unit SAFETY DEFINITIONS: Follow all WARNING, CAUTION, and NOTE messages in this manual. These messages are defined as follows: WARNING means you may risk serious personal injury or death; CAUTION means you may risk personal injury, property damage, or unit damage; and NOTEs and OPERATING TIPS provide clarity and helpful information. These safety messages cover situations ROBINAIR is aware of.
Table of Contents Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 Technical Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 Keypad Functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 Glossary . . . . . . . . .
Introduction Robinair No. 34288 is used on R-134a vehicles and is designed to be compatible with existing service equipment and standard service procedures. Model No. 34288 is a UL-listed, single-pass system that meets SAE specifications for recycled refrigerant. Follow the SAE-J2211 recommended service procedure for the containment of R-134a. The unit includes a 1.5 cfm (42 l/m) Robinair high vacuum pump for fast, thorough evacuation.
Introduction Keypad Functions START / YES START / YES begins or resumes a function, or answers a query. STOP / NO STOP / NO terminates or pauses a function, or answers a query. MENU MENU displays the selection menu. ARROWS are used for scrolling through menu items. RECOVER START / YES RECOVER MENU RECOVER activates the recovery sequence. VACUUM VACUUM activates the vacuum sequence. CHARGE CHARGE charges the vehicle A/C system with a programmed amount of refrigerant.
Introduction Menu Functions 1. Press the MENU button on the keypad. 2. Press the UP or DOWN arrow key to scroll through the menu choices shown on the second line of the display : SELECT LANGUAGE VERSION X.XX SELECT UNITS MAINTAIN VACUUM OIL MAINTAIN FILTER REFRIG MANAGEMENT MANUAL REFILL ADJUST TANK FILL LVL CALIBRATION CHECK SERVICE MENU DISPLAY TANK INFO Operator may choose to have prompts displayed in one of three languages: English, Spanish, or French. Version X.
Setup Unpack the Accessory Kit Unpack the accessory kit from the bag, and remove the plastic packaging. The kit consists of • Low-side tank adapter. • Calibration weight. • Vacuum pump oil, oil filler cap, and tube. • Plastic pouch containing a warranty card (to be completed and mailed), applicable MSDS sheets, a service center listing, and an envelope of Mobile Air Conditioning Society (MACS) information.
Setup Set Tank Fill Level Vacuum Pump The operator may either accept the unit’s pre-set default weight of 15 lbs. (6.8 kg) of refrigerant stored in the internal storage vessel (ISV), or change the amount to accommodate the application. Fill Port Sight Glass The unit displays LEVEL: 15.00 LBS. ENTER TANK FILL LVL LIMIT: 4 TO 17 LBS. PRESS START / YES TO SAVE 1. Press START / YES to accept the default amount, or use the arrow keys to enter a desired amount and press START / YES.
Setup Fill the Internal Storage Vessel (ISV) 1. Press START / YES, and the unit automatically runs a 5-minute vacuum to clear all internal air. Note: The “burping” noise heard during this process indicates air is being purged from the system—this is normal. 2. After the vacuum pump shuts off, attach the low-side tank adapter to the liquid valve on the tank. Attach the low-side service hose to this adapter. See Figure 3. Low- and High-Side Hoses Hose Storage Fittings 3.
Operating Instructions Recover Refrigerant from a Vehicle 1. Empty the oil drain bottle located on the right-hand side of the unit, if necessary, or make note of the current oil level. See Figure 5. 2. Connect the high- and low-side hoses to the vehicle A/C system. 3. Open the coupler valves on the hoses. 4. Open the high- and low-side panel valves on the control panel. Oil Drain Bottle 5. Press the RECOVER button.
Operating Instructions Evacuate the A/C System 1. Ensure service hoses are connected, and coupler valves are OPEN. 2. Press VACUUM. 3. Press START / YES to accept the default evacuation time of 10 minutes, or enter the desired vacuum time using the number keys, and press START / YES. IMPORTANT: The unit pulls a vacuum on the vehicle A/C system to remove air and boil off moisture that may be present in the system.
Operating Instructions Recharge the A/C System 1. Press CHARGE. Open the appropriate panel valve(s), depending on where the system should be charged – high-side, low-side, or both. 2. Press CHARGE again to change the units of measure. Accept the default weight by pressing START / YES, or use the arrow keys to scroll to the correct amount, and press START / YES. 3. The display reads CHARGE IN PROGRESS / DO NOT DISTURB X.XX LBS. (X.
Operating Instructions Recharge the A/C System contd. 7. Place the vehicle gear selector in park or neutral, with the emergency brake ON. 8. Start the vehicle. The A/C system should be set at maximum. 9. Press START / YES. The display reads EQUALIZING HOSES . REMOVE LS HOSE WHEN . HS + LS ARE < 40 PSI PLEASE WAIT This allows the vehicle’s compressor to pull refrigerant into the A/C system. When both gauges read below 40 psi, close both panel valves and the low-side coupler valve.
Maintenance General Maintenance 1. On a regular basis, wipe off the unit using a clean cloth to remove grease and dirt. 2. Periodically check internal components for leaks; over time, fittings can loosen as the unit is moved. Open the door panel, and trace lines using a leak detector. Check connections on the back of the unit. Tighten any loose fittings or connections you may find.
Maintenance Replace the Filter-Drier The filter-drier is designed to trap acid and particulates, and to remove water from refrigerant. To meet the . SAE J-2788 mandate for adequate moisture and contaminant removal, the filter-drier must be replaced after 150 lbs. (68 kg) of refrigerant has been filtered. Therefore, you no longer have a choice—the filter-drier must be replaced. The unit gives a warning when 100 lbs. of the filter capacity has been used; the unit locks down when the 150 lb.
Maintenance Replace the Filter-Drier contd. 5. The display reads PLEASE REPLACE FILTER. Open the rear door of the unit and unscrew the old filter. See Figure 8. 6. Look at the new filter—verify both o-rings are lubricated and correctly located in the grooves. See Figure 9. Thread the new filter into place. Press START / YES. Filter-Drier Note: If the display shows SERIAL NUMBER ERROR, the serial number is invalid or the filter-drier has already been used in this unit. Rear View (without shroud) 7.
Maintenance Change Vacuum Pump Oil For maximum vacuum pump performance, change the vacuum pump oil after every 10 hours of operation. (The unit will display a prompt after 10 hours of operation.) Oil Fill Port 1. Press MENU. Use the arrow keys to select MAINTAIN VACUUM OIL, and press START / YES. The display shows how long the vacuum pump has operated since the last oil change: PUMP OIL TIME X:XX TIME REMAINING X:XX CHANGE OIL? 2. Press START / YES.
Maintenance Scale Calibration The calibration check is used to ensure the unit’s internal scale is always calibrated. During this test, use only the calibration weight that is provided with the unit. Figure 11 1. Press Menu. 2. Use the arrow keys to scroll to CALIBRATION CHECK. 3. Refer to Figure 11, and verify the magnet on the bottom of the unit is clean. Press START / YES. 4. The display reads ATTACH THE WEIGHT TO THE BOTTOM OF THE MACHINE PRESS START TO CONTINUE 5.
Robinair Limited Warranty Statement Declaración de garantía limitada Robinair Rev. November 1, 2005 Revisión del 1 de noviembre de 2005 Révisée le 1er novembre 2005 Se garantiza que este producto no posee defectos de mano de obra, materiales y componentes por el período de un año a partir de la fecha de compra. Todas las partes y mano de obra requerida para reparar los productos con defecto cubiertos bajo la garantía no tendrán costo. Aplican las siguientes restricciones: 1.
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 better, please 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 the unit, and return it within ten days from date of purchase.
