Welch Vacuum 2047 User Manual

WELCH-IL

OWNER’S MANUAL

FOR

DRY VACUUM PUMPS

MODELS:

2014
2032 / 2042
2034 / 2044
2037 / 2047

MV

A

C

Be sure to properly identify intake and exhaust before using the

pump. See Section 2.15

Do not pump liquids with the pump. Pumping liquids will cause the

pump to stop working.

Welch-Ilmvac
5621 W. Howard Street
Niles, IL 60714
Phone: [phone] (Technical Support)
Fax: [phone]
E-Mail: [e-mail]
Web-Page: www.welchvacuum.com

WARNING

CAUTION

Part No. 642779

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 conform 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 documents

Caution - Risk of electrical shock

Caution - Hot surface

WARNING

Motor includes a self resetting thermal cutout and the pump could

restart without actuation under fault condition.

2

TABLE OF CONTENTS

Section Page
Section 01 - Safety Information

1.10 Caution: to prevent injury 4

1.20 Caution: to reduce risk of electrical shock 4

1.30 Warning: to reduce risk of electrocution 5

1.40 Warning: to reduce risk of explosion or fi re 5
Section 02 - Installation

2.10 Environmental conditions 6

2.11 Introduction 6

2.12 Unpacking 6

2.13 Pump mounting 6

2.14 Pump location 6

2.15 Discharge provisions 7

2.16 Electrical power 8

2.17 Advanced Vapor Management (AVM) 8

2.18 Traps 8

2.19 The care of a liquid trap 9

2.20 The care of a cold trap 9
Section 03 - Operation

3.10 Starting a Welch DRY Vacuum Pump 10

3.11 Cleanliness 10

3.12 Leak detection 10

3.13 Operating pressure range 10

3.14 The effects of unwanted vapor 10

3.15 Shutdown procedure 10
Section 04 - Maintenance

4.10 General maintenance 11

4.11 Diaphragm removal 11

4.12 Installation of new diaphragm 11
Section 05 - Application

5.10 Operation as a replacement for aspirators 12

5.20 Cross reference Welch DRY Pump to Water Aspirator 12
Section 06 - Specifi cations

6.10 Specifi cation Chart 13
Section 07 - Specifi cations

Warranty 14
Section 08 - Drawings

8.10 Dimensional drawing 15

8.20 Exploded view and kit for 2034, 2037 & 2044 16

8.30 Exploded view and kit for 2014, 2032, 2042 & 2047 17
3

Section 1: 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. All electrical products generate heat. To avoid

serious burns never touch unit during or immediately after operation.

1.13 Never block any air openings or place it on a soft surface where the openings may be blocked.

To ensure proper ventilation, keep unit a minimum of one inch from any wall or obstruction.
The air openings are for ventilation of the motor inside the housing.

1.14 Models 2014, 2032, 2034, 2037, 2042, 2044 and 2047 are thermally protected and can

automatically restart when the protector resets. Always disconnect power source before
servicing.

1.15 Never drop or insert fi ngers or any other object into any openings.

1.16 Do not operate this product where oxygen is being administered.

1.17 Wear safety glasses and goggles when operating this product.

1.18 Use only in well ventilated areas. The motor on all pumps are totally enclosed fan cooled

WARNING

Do not operate the pumps in an atmosphere containing fl ammable or

explosive gases/vapors

1.19 Be sure to properly identify intake and discharge before using pump. See Section 2.5.

Models 2014, 2032, 2034, 2037, 2042, 2044 and 2047 have one exhaust port on the pump.

See Section 2.15.

WARNING

Remove plug from Exhaust Port before using

1.20 Caution: To Reduce Risk Of Electrical Shock...

1.21 Do not disassemble. Disassembly or attempted repairs if accomplished incorrectly can create

electrical shock hazard. Refer servicing to qualifi ed service agencies only.

1.22 Unit is supplied with a three pronged plug. Be sure to connect pump to a properly grounded

outlet only.

4

1.30 Warning: To Reduce Risk of Electrocution...

1.31 Do not use this product in or near area where it can fall or be pulled into water or other liquids.

1.32 Do not reach for this product if it has fallen into liquid. Unplug immediately.

1.33 Never operate this product outdoors in the rain or in a wet area.

1.40 Danger: To Reduce Risk of Explosion or Fire...

1.41 Do not use this pump in or near explosive atmospheres or where aerosol (spray) products are

being used.

1.42 Do not use this product near fl ames.

WARNING

Failure to observe the above safety precautions could result in Severe

bodily injury, including death in some cases

5

Section 2: INSTALLATION

2.10 Environmental Conditions

The Pump is rated for indoor use only. Maximum altitude 2000 meters. Operating temperature

o

range 10
to 50% at 40oC. Rated for +/-10% of supply voltage. Pollution Degree 2, Installation Category
II.

2.11 Introduction

This manual has been compiled not only for the care and maintenance of the Welch Dryfast

Vacuum pump now in your possession, but as a helpful reference and guide to prevent many
problems which can occur if used improperly.

2.12 Unpacking

Carefully remove the Dryfast Vacuum pump from the shipping case. Preserve all paperwork for

future reference. If damage has occurred from shipment a claim must be fi led 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 identifi cation. Do not return the pump to the factory without obtaining returned goods
authorization. *See “Service & Support” on www.welchvacuum.com.

C to 40oC. Maximum relative humidity of 80% for temperatures up to 31oC decreasing

2.13 Pump Mounting

Rubber feet are attached to the pump casing.

2.14 Pump Location

WARNING

Don’t operate this pump in an atmosphere containing fl ammable or

explosive gas

WARNING

The motor is thermally protected and will automatically restart

unexpectedly when the overload device resets

The Dryfast Vacuum pump should be located preferably in a clean, dry and well ventilated

area. Please be sure not to block the ventilation ports located on the motor housing. The pump

o

should be placed where the surrounding temperature remains between 10
and 104

o

F). Always check to insure the location chosen is protected from direct or indirect

C and 40oC (50oF

moisture contact. The pump should be located as closely to its system in order to utilize it most
effi ciently.

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