Vacuum Pump Models QV2 & QV5 Operation and Maintenance Instruction Manual 2002-0010 Rev.
Vacuum Pump Models QV2 & QV5 WARRANTY Bacharach, Inc. warrants to Buyer that at the time of delivery this Product will be free from defects in material and manufacture and will conform substantially to Bacharach Inc.’s applicable specifications. Bacharach’s liability and Buyer’s remedy under this warranty are limited to the repair or replacement, at Bacharach’s option, of this Product or parts thereof returned to Seller at the factory of manufacture and shown to Bacharach Inc.
Vacuum Pump Models QV2 & QV5 Contents Introduction................................................................................................ 1 Features .................................................................................................... 1 Oil Pre-Fill Notice ...................................................................................... 1 Technical Characteristics .......................................................................... 2 Pump Components ......................
Vacuum Pump Models QV2 & QV5 iv P/N: 2002-0010 Rev 6
Vacuum Pump Models QV2 & QV5 Introduction Thank you for selecting Bacharach products for your refrigeration equipment needs. To ensure your safety, and for the safe operation of this equipment, please read, understand, and follow the information contained in this instruction manual. The model QV2 and QV5 are two-stage, rotary vane vacuum pumps designed to evacuate moisture and air from refrigeration systems (e.g., R-12, R-22, R-134a).
Vacuum Pump Models QV2 & QV5 Technical Characteristics Model QV2 QV5 Part No. 2002-0001 2002-0005 Voltage 110V 60 Hz 110V 60 Hz Free Air Displacement 1.7 CFM 5.3 CFM Ultimate Vacuum 25 microns (0.03 mbar) 25 microns (0.03 mbar) Motor 1/4 HP 1/2 HP Intake Fitting 1/4″, 3/8″, 1/2″ Flare 1/4″, 3/8″, 1/2″ Flare Motor Speed 1,720 rpm 3,450 rpm Oil Capacity 11.8 fl oz (350 ml) 14.2 fl oz (420 ml) Dimensions 13.0 5.3 10.0 in (330 135 255 mm) 13.8 5.6 10.
Vacuum Pump Models QV2 & QV5 Operation Check the pump’s oil level as viewed through the sight glass before each use. Add oil as necessary through the oil fill access. Use only high grade vacuum pump oil with the following specifications. Kinematic viscosity (104 F) Viscosity index Flash point 46 100.0 437 Remove the intake fitting cap and connect the pump to the system being evacuated using a hose with appropriate fittings.
Vacuum Pump Models QV2 & QV5 Gas Ballast Operation The vacuum pump utilizes a feature allowing for the partial removal of condensing gases in the vacuum pump. The gas ballast valve can be operated in the following manner. CAUTION: If there is a possibility that there is condensation or high amounts of water in the system, install a vapor condenser in the line.
Vacuum Pump Models QV2 & QV5 Warnings Do not evacuate combustible, explosive, or poisonous gases. Do not operate the vacuum pump in the rain. Do not remove or insert power plug, or turn ON the pump in an explosive atmosphere. If using the pump in a confined area, connect a hose to the pump’s exhaust fitting and route the hose to the outside. Power the pump from a grounded AC outlet. Consult a professional electrician to ensure proper grounding.
Vacuum Pump Models QV2 & QV5 Troubleshooting Problem Pump does not produce desired vacuum Oil leakage Oil injection Difficult starting Probable Cause Remedy Oil level is low Add oil until level is correct as viewed through sight glass. Oil is emulsified or dirty Replace dirty oil with fresh, high-grade vacuum pump oil. Oil inlet or oil flow is blocked Clean oil inlet and filtering screen. System leak Check system being evacuated for leakage and repair.
Vacuum Pump Models QV2 & QV5 Using clean, fresh, vacuum pump oil is a critical part of achieving the desired vacuum. Replace the pump oil if it becomes dirty and looks turbid, or contains water or volatile matter. When replacing the oil, first thin down the oil by running the pump for 30 minutes with the intake closed. Stop the pump, remove the exhaust fitting and remove the oil drain plug, allowing the oil to drain.
Vacuum Pump Models QV2 & QV5 Headquarters: 621 Hunt Valley Circle, New Kensington, PA 15068 Ph: 724-334-5000 • Fax: 724-334-5001 • Toll Free: 800-736-4666 Website: www.mybacharach.com • E-mail: help@mybacharach.com Printed in U.S.A.
