Fisher & Paykel 2534C-02 User's Manual
Contents
1. A Welch Rietschle Thomas A Thomas Industries Company OWNER S MANUAL FOR WOB L PISTON PRESSURE VACUUM PUMPS MODELS 2534C 02 amp 2546 HOI Registered Company Contents Safety Information Installation Operation Maintenance Trouble Shooting Guide Specifications Warranty Parts List and Exploded View WARNING Not recommended for pumping acid base or organic vapors or gases WARNING Be sure to properly identify intake and discharge before using pump See Section 3 50 Welch Rietschle Thomas 7301 North Central Avenue Skokie IL 60077 Phone 847 676 8800 Fax 847 677 8606 Technical Support Fax 920 451 4397 Ordering E Mail welchvacuum thomasind com Part No 67 1476R1 0 Web Page www welchvacuum com Printed in USA INSTRUCTION WARNING AND CAUTION PLEASE READ BEFORE OPERATION While reading your manual please pay close attention to areas labeled WARNING AND CAUTION The description of each is found below WARNING Warnings are given where failure to observe instruction could result in injury or death to people CAUTION Cautions are found where failure to observe the instruction could result in damage to the equipment associated equipment and process These units confirm to the SI International system of units of measurement The following symbols with recommendation of IEC1010 of warning will be found on the pump Caution refer to accompanying documents2. Caution risk of electrical shock gt D Caution hot surface WARNING Motor includes a self resetting thermal cutout and the pump could restart without actuation under fault condition Section 01 Section 02 Section 03 Section 04 Section 05 Section 06 Section 07 Section 08 Section 09 Section 10 Section 11 TABLE OF CONTENTS SAFETY INFORMATION CAUTION TO REDUCE RISK INSTALLATION ELECTRICAL POWER TRAPS OPERATION MAINTENANCE TROUBLESHOOTING SPECIFICATION WARRANTY EXPLODED VIEW AND PARTS LIST Welch Rietschle Thomas Read and understand the following information and instructions included with your Welch Dry Dual Function Pressure amp Vacuum Pumps before using This information is for your safety and to prevent damage to the pumps Section 01 SAFETY INFORMATION 1 10 CAUTION TO PREVENT INJURY 1 11 Never operate this product if it has a damaged cord or plug If it is not working properly has been dropped damaged or has fallen into water please return the product to a Welch service center for examination and repair 1 12 Keep the cord away from heated surfaces 1 13 Never block any air openings or place it on a soft surface where the openings may be blocked The air openings are for ventilation of the motor inside the housing Keep all air openings free of lint dirt and other foreign objects 1 14 Never drop or insert fingers or any other object into any openings 1 15 Do not operate t
3. In this event an estimate of the repair costs will be submitted and authorization of these charges will be required before the product is repaired and returned To reduce additional charges and delays either within or outside of the warranty period contact Welch Rietschle Thomas 847 676 8800 for a return authorization number Products without a return authorization number will be refused by our receiving department Before shipping properly pack the pump insure it against loss or damage and on the outside of the pump packaging and the packing slip write in the return authorization number Pumps damaged due to improper packaging are the customer s responsibility Section 11 EXPLODED VIEW AND PARTS LIST 11 10 DRAWING AND PARTS LIST FOR 2546 e Q e 9 T 15A B sa E Wi l od goe a Item Service Kit Servce Kit Servce Kit Number QTY Part Number Description 2546K 03 2546K 04 2500K 04 T 4 i 4 i e 1 Noer O Ring ylinder re a Noer Filter Element o a m Pressure Gauge To pr Notet Ed 71 7296 10 11 20 DRAWING AND PARTS LIST FOR 2534C 02 Item Part Number e LT Note1 O Ring Cylinder e a Noer Filter Element SS o a m reese Gauge o a ner Ed 11 Welch Rietschle Thomas 7301 N Central Ave Skokie IL 60077 Phone 847 676 8800 Fax 847 677 8806 OWNER S MANUAL For WOBeL PISTON PRESSURE VACUUM PUMPS MODELS 2534C 02 amp 254
4. high pressures If the trap becomes saturated it should be disconnected from the system drained and cleaned An increase in pressure in the vacuum system will normally indicate that the trap has become saturated To clean the trap remove the trap from the system and allow the trap to warm up and rinse off the condensate with a suitable solvent in a fume hood Thoroughly clean and dry the trap before reinstalling into the system Section 06 OPERATION 6 10 Starting A Welch Pressure Vacuum Pump Before attaching the pump to a system familiarize yourself with the function and action of the pressure vacuum pump that you have acquired Review the power requirements as described in Section l 6 Welch recommends running the pump for a few minutes to warm it up before use The warm up improves the pumps ability to handle humid air 6 11Cleanliness Take every precaution to prevent foreign particulates from entering the pump Particulates will damage the pump s performance If you find that particulates come off the process during evacuation a particulate trap in the foreline will work A simple inexpensive trap may be made by placing glass wool in a glass or plastic tube Screens must be inserted to hold the glass wool in place 6 20 LEAK DETECTION The importance of eliminating all leaks in a vacuum system is obvious The pump must remove this added volume of leaked gas to maintain the desired vacuum Leaks for these pump can be located by slightly press
5. use this pump in or near explosive atmospheres or where aerosol spray products are being used 2 32 Do not pump anything other than atmospheric air 2 33 Do not pump combustible liquids or vapors with this product or use in or near an area where flammable or explosive liquids or vapors may exist 2 34 Do not use this product near flames FAILURE TO OBSERVE THE ABOVE SAFETY PRECAUTIONS COULD RESULT IN SEVERE BODILY INJURY INCLUDING DEATH IN EXTREME CASES Section 03 INSTALLATION 3 10INTRODUCTION This manual has been compiled not only for the care and maintenance of the Welch Dry Dual Function Pressure Vacuum pump now in your possession but as a helpful reference and guide to prevent many problems which can occur if used improperly 3 20 UNPACKING Carefully remove the Pressure Vacuum pump from the shipping case and unfasten and remove the wooden skid Preserve all paperwork for future reference If damage has occurred from shipment a claim must be filed with the carrier immediately preserve the shipping carton for inspection by the carrier If you are required to communicate with your dealer or Welch Vacuum be sure to include your order numbers for quick identification Do not return the pump to the factory without first calling for a returned goods number 3 30 PUMP MOUNTING Rubber feet are attached to the pump Rubber feet are excellent for applications involving a semi flexible surface such as a bench top they help to isolate noise and el
6. 6 Part No 67 1476R1 0 Copyright 1997 2004 Welch Rietschle Thomas Welch is a registered trademark of Welch Rietschle Thomas P N 642517 C 05 04
7. Section 10 WARRANTY UNPACKING Inspect the pump carefully If any damage has occurred file claim with the carrier immediately Save the shipping container for carrier to inspect OPERATING PUMP Refer to the enclosed Instruction Operation Manual for all information to properly operate and maintain the pump WARRANTY This Welch Vacuum product is warranted to be free from defects in material and workmanship The liability of Welch Rietschle Thomas under this warranty is limited to servicing adjusting repairing or replacing any unit or component part which in the judgment of Welch Rietschle Thomas has not been misused abused or altered in any way causing impaired performance or rendering it inoperative No other warranties are expressed or implied The method of executing this warranty servicing adjusting repairing or replacing shall be at the discretion of Welch Rietschle Thomas Vacuum pumps that have been used for any period however short will be repaired under this warranty rather than replaced The warranty is effective for one year from the date of original purchase when 1 The warranty card has been completed and returned 2 The product is returned to the factory or other designated service centers freight prepaid 3 The product in our judgment is defective through no action or fault of the user If the product has become defective through misuse abuse or alteration repairs will be billed regardless of the age of the product
8. e fault to the drive remains unaltered the motor will cycle on and off until the fault is corrected 4 200 VACUUM CONNECTIONS All pressure vacuum pumps come with intake and discharge hose barbs which accept 1 4 ID rubber pressure vacuum hose Hose clamps should be used to hold the hose in place Since all three models operate in the viscous flow regime the small diameter of the hose will generate minimal conductance loss For best results Welch recommends the length of the tubing between the pump and the chamber be kept as small as possible 421VACUUM AND PRESSURE GAUGES All models of pressure vacuum pumps come with dial gauges mounted on the regulator assemblies The vacuum gauge gives negative pressure that is pressure below atmospheric The reference point for the vacuum gauge is atmospheric pressure The pressure gauge gives pressure above atmospheric The reference point for the pressure gauge is atmospheric pressure Please keep in mind that atmospheric pressure tends to vary from day to day As a result of this variability the dial vacuum gauge will indicate slightly different maximum vacuum readings from day to day Section 05 TRAPS 5 10 The need foraTrap The pumps will handle humid air All wetted aluminum parts are treated for corrosion protection from moisture All other wetted parts are stainless steel A plastic trap with a ball check valve is attached to the regulator assembly to prevent water condensate from accidentally being ing
9. ed vacuum problems still exist the pump should be checked A simple criterion for the condition of the pump is the determination of its maximum vacuum capability This can be accomplished by blocking of the intake and reading the vacuum level on the gauge See Section Il 8 8 20 PRESSURE PROBLEMS Leakage and contamination are the general causes of problems associated with poor pressure To operate at maximum efficiency a system must be thoroughly clean If the system is completely clean and free from leaks and unwarranted pressure problems still exist the pump compressor should be checked by a service technician See Section Il 8 8 30 TROUBLESHOOTING GUIDE Poor Pumping Poor Speed Pressure Loud Unit Possible Cause Corrective Action X X X Damaged Valves Replace flapper valves x x x Debris in Valves Remove debris and check for valve damage X X X Damaged Gaskets Replace gaskets X X X Loose Head Screws Tighten head screws X X Loose Fittings Tighten fittings Section 09 SPECIFICATION Welch Model 2534 2546 a CFM L min 50Hz Catalog Number Wired for 115V 60Hz 1 Phase 1534B 01 2546B 01 with N American 115V Plug Catalog Number Wired for 230V 60Hz 1 Phase 2534C 01 2546C 01 with N American 115V Plug Catalog Number Wired for 220V 50Hz 1 Phase 2534C 02 2546C 02 with Euro Schuko Plug Catalog Number Wired for 230V 60Hz 1 Phase with Euro 250V Plug Note 50 Hz models provided with CE mark
10. ested into the pump If there is a chance liquid may be drawn from the process under evacuation Welch recommends a liquid trap be placed between the process and the pump A simple liquid trap is a filtering flask See figure below SH When a heavy load of water vapor is evolved from the vacuum process a cold trap is recommended to help prevent damage to the pump mechanism The cold trap immersed in a suitable Dewar flask is installed so that the water vapors may come in contact with the surfaces of the trap and condense Commonly used refrigerants are liquid nitrogen or dry ice and acetone or alcohol Dry ice provides sufficient cooling to freeze out most heavy water vapor loads A variety of cold traps are available from Welch Please call our customer service department for additional information at 847 676 8800 The pump is not recommended for pumping acid base or organic vapors or gases Serious damage to the pump will shorten the pump s service life In addition pumping flammable vapors or gases can lead to serious safety hazard leading to fire or explosion 5 11 The Care ofa Trap When using a cold trap the refrigerant should be maintained at a high level in the flask to keep the trap at a uniformly low temperature Ifthe trap is rewarmed it may allow re evaporation of the condensate The refrigerant add tube on the liquid nitrogen trap should not be obstructed as the refrigerant boil off can pro duce dangerously
11. his product where oxygen is being administered 1 16 This pump is thermally protected and can automatically restart when the protector resets Always disconnect power source before servicing 1 17 Wear safety glasses or goggles when operating this product 1 18 Use only in well ventilated areas 1 19 Do not use any tools or attachments without first determining maximum air pressure for that tool or attachment 1 20 Never point any air nozzle or air sprayer toward another person or any part of the body 121 All electrical products generate heat To avoid serious burns never touch unit during or immediately after operation 1 22 Be sure to properly identify intake and discharge before using pump See Section Il 5 Section 02 CAUTION TO REDUCE RISK 2 10 WARNING TO REDUCE RISK OF ELECTRICALSHOCK 2 11 Do not disassemble Disassembly or attempted repairs if accomplished incorrectly can create electrical shock hazard Refer servicing to qualified service agencies only 2 12 Unit is supplied with a three pronged plug Be sure to connect pump to a properly grounded outlet only 2 20 WARNING TO REDUCE RISK OF ELECTROCUTION 2 21 Do not use this product in or near area where it can fall or be pulled into water or other liquids 2 22 Do not reach for this product if it has fallen into liquid Unplug immediately 2 23 Never operate this product outdoors in the rain or in a wet area 2 30 DANGER TO REDUCE RISK OF EXPLOSION OR FIRE 2 31 Do not
12. iminate creeping All Pressure Vacuum pumps should he mounted on a 3 40 PUMPLOCATION The pressure vacuum pump should be located preferably in a clean dry and well ventilated area Please be sure not to block the ventilation holes located on the motor housing The pump should be placed where the surrounding temperature remains between 10 C and 40 C 50 F and 104 F Always check to insure the location chosen is protected from direct or indirect moisture contact Welch recommends that the pump be installed at the highest point within the system to prevent possible water condensate from entering the pump The pump should be located as closely to its system in order to utilize it most efficiently The motor is thermally protected and will automatically restart unexpectedly when the overload device resets Don t pump flammable or explosive gases or vapors or operate this pump in an atmosphere containing flammable or explosive gases or vapors 3 50 INTAKE AND DISCHARGE PROVISIONS Two regulators and two gauges make it easy to meet your vacuum and pressure requirements The vacuum regulator and vacuum dial gauge is attached to the intake port The vacuum regulator allows the vacuum level to be set between roughly atmospheric pressure and the maximum vacuum allowed for the pump model A moisture trap keeps water from accidentally being drawn into the unit The pressure regulator and pressure dial gauges are attached to the discharge port The press
13. ure regulator allows discharge pressure to be set between atmospheric and the maximum possible for the pump model Discharge air is filtered and noise is muffled with a filter Note Adjusting either the pressure or vacuum regulators will affect the performance of the pump PROPERLY IDENTIFY THE INTAKEAND DISCHARGE OF THE PUMP La Intake Discharge de H Pressure Vacuum Pump Never Block The Discharge Port If the exhaust is blocked pressure will build up in the pump above its rated operating pressure Be sure to call Welch technical service prior to start up at 847 676 8800 if you have any questions Section 04 ELECTRICAL POWER 4 10 Power Source Review Review the power source and the motor rating to be sure they agree in voltage phase and frequency Serious damage may occur to the motor if it is connected to an improper voltage All Welch pumps must be grounded Grounding reduces the risk of electric shock in the event of an electrical short circuit The plug must be plugged into a properly grounded outlet Consult your local electrical codes if you have doubts 4 11 Overload Protection Motor thermal overload protection is made available by the motor manufacturer as anaid to minimize motor failure Overload protection is a standard feature on both 50 and 60 Hz single phase motors The motors have automatic overload protection Automatic reset protection is designed to reset itself after a predetermined cooling period If th
14. uring the system and painting the suspected area with a thick soap solution Escaping air will produce soap bubbles 6 30 OPERATING PRESSURE RANGE Pressure Vacuum pumps are designed to be run from slightly below atmospheric to their maximum vacuum level on the intake side The pumps also may be run from atmospheric to their maximum rated pressure rating Consult the Specification Table See Section VI Specifications for the ratings of your specific model 6 40 SHUTDOWN PROCEDURES After use Welch recommends the pump be run for about 2 minutes disconnected from the vacuum process The air pumped through the mechanism will purge out water vapor or droplets of water condensate that may have formed on the inside of the pump This purge of the pump mechanism helps prevent corrosion Section 07 MAINTENANCE Welch dry pressure vacuum units are 100 oil free The pump employs a non lube piston and cylinder No maintenance is necessary for the bearings All bearings are sealed and permanently lubricated Lubrication should not be attempted The units are built for continuous duty operation with the quietness and durability of a diaphragm but with piston performance Section 08 TROUBLESHOOTING 8 10 VACUUM PROBLEMS Leakage contamination and unusual outgassing are the general causes of problems associated with poor vacuum To operate at maximum efficiency a system must be thoroughly clean It the system is completely clean and free from leaks and unwarrant
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