SuperEvac ™ Vacuum Pump for Ammonia and NH

3

Systems

Operation and Maintenance

Manual

Models 93530 and 93533

English…….....pages 1-9

Español...........páginas 10-18

Français..........pages 19-27

Deutsch...........seites 28-36

Table of Contents

Page

How to obtain service…………………...…………………………………………………………..…….. 2

Features of your new pump.......................................................................................................................... 3

Warranty Information………………………………………………………………...…...………………..3

The purpose of the SuperEvac ™ design........................................................................................................ 4

The 7 important steps of initial start-up........................................................................................................ 4

Oil changes……………………………………………………………………………………...….…...… 5

Vacuum tips for best performance............................................................................................................... 5

Basic troubleshooting................................................................................................................................... 6

Diagnostic chart........................................................................................................................................ 7, 8

Replacement parts..................................................................................................................................... 8, 9

Important Notices to Purchaser

Check for damage immediately.

All YELLOW JACKET SuperEvac™ vacuum pumps for ammonia and NH

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systems are completely tested and inspected to assure compliance with

Ritchie factory specifications prior to shipment..

If the pump carton is damaged, check contents immediately. Note damage on shipper's Bill of Lading and have shipper sign your statement. Notify the carrier immediately of the damage to arrange inspection of the pump and packaging.

The CARRIER ALONE is responsible for handling and settling your claim. Ritchie Engineering will cooperate in assessing damage if the pump is returned to the factory prepaid .

Carton contents include:



SuperEvac ™ Vacuum Pump for Ammonia and

NH

3

Systems.



Bottle of YELLOW JACKET ® SuperEvac ™

Pump Oil



Owner's manual



Warranty registration card

To validate warranty, mail registration card within 10 days.

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How to Obtain Service

Most returned pumps are merely in need of normal field service maintenance, such as changing oil or making minor adjustments. In many instances, the troubleshooting information in this manual can save you the time and effort of returning your pump.

When the information contained in this manual, however, does not solve the problem, please call for service.

In the U.S. call the Ritchie Engineering Customer

Service Department:

Phone: (952) 943-1333 or (800) 769-8370

Fax: (952) 943-1605 or (800) 322-8684

E-mail: [email protected]

A representative will help to determine if the problem can be solved without sending your pump to the factory and taking it out of service.

Returns: If the pump does need to be returned to the factory, and you are in the U.S., DRAIN THE

OIL and send the pump - freight prepaid - to:

Ritchie Engineering Company, Inc.

Customer Service Department

10950 Hampshire Avenue South

Bloomington, MN 55438-2623 USA

If you are in a country other than the U.S., please contact the wholesaler from whom the pump was purchased.

Features of your New Pump

2) Gas ballast valve

(see below)

Lower operating temperature to improve efficiency and vacuum.

Heavy duty metal handle.

Permanently attached to pump body. Built-in hook hole.

1) Male pipe pump intake

(see below)

Pump exhaust also doubles as oil fill port. Use YELLOW JACKET oil for assurance of a clean,fast job.

Heavy duty high torque motor for cold weather starting.

Longer heat dissipation fins for a cooler running unit.

Wide-view sight glass for easier

Monitoring of oil level.

Oil drain valve for quick draining

and convenient access.

High resiliency foot pads for added stability and skid resistance.

1. Male pipe pump intake. Large hose suggested for maximum pull down.

2. Gas ballast valve helps remove moisture and other condensable vapors that have been drawn into the pump as a result of evacuation. Opening the ballast allows fresh air to enter the pumping chamber and keep vapors from combining with the oil. Vapors escape harmlessly through the exhaust valve. If combined with oil, vapors can turn the oil milky white and lower pump performance below specifications.

To operate ballast, turn the valve counterclockwise one full turn after evacuation starts.

As the vacuum reading reaches 1000-2000 microns, close the ballast to achieve a deeper vacuum.

WARRANTY INFORMATION

Ritchie Engineering guarantees YELLOW

JACKET products to be free of defective material and workmanship which could affect the life of the product when used for the purpose for which it was designed. This warranty does not cover items that have been altered, abused or returned solely in need of field service maintenance.

If found defective, we will either replace or repair at our option products within two years of factory shipment. Warranty does not cover items that have been altered, abused (including failure to use the correct type of vacuum pump oil) or returned solely in need of field service maintenance. Returns must be pre-paid.

Warranty does not cover use on lithium bromide systems.

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The Purpose of the SuperEvac Design

The SuperEvac Pump is a 2-stage rotary vane design

(at right) that increases efficiency and speeds pump down to 15 microns.

The pump lowers the internal pressure of a refrigeration system until moisture boils into a vapor. As the moisture is vaporized, it is evacuated by the pump, helping dehydrate the system. Most technicians try to achieve between 250 and 1000 microns.

A manometer or electronic vacuum gauge are the only ways to monitor evacuation progress. Manometer readings are approximate in inches of mercury.

Only an electronic vacuum gauge is accurate enough to show when you reach the desired micron range.

As the chart shows, only an electronic gauge reads fine differences to provide assurance that the vacuum is low enough to boil the greatest possible amount of moisture.

How one small drop dampens your profits.

Boiling temp of water

212°F (100°C)

151°F (66°C)

101°F (38°C)

Inches mercury

0

22.05

27.95

Microns

760,000

200,000

50,000

First stage exhausts into the intake of the second stage similar to two single stage pumps connected together. it collects on the high side reducing system efficiency. This causes a rise in head pressure. The discharge valve gets hotter than normal and organic solids form causing compressor failure.

Moisture in the system can form ice which closes off openings in expansion valves and cap tubes, and prevent adequate cooling.

Ultimately moisture and air can produce acids and sludge which could cause in-warranty failures.

78°F (26°C) 28.95 25,000

35°F (2°C)

1°F (17°C)

- 50°F (-46°C)

29.72

29.882

29.919

5,000

1,000

50

A small drop of moisture can hurt your profits and reputation.

During new system set-up, protective caps are removed admitting moisture and air into system components.

If air – a non-condensable – remains in the system,

During service and parts replacement, the same contaminants get in again, and you could be called back for repairs by a dissatisfied customer.

Moisture and air can even enter through system leaks. And as the moisture in the air increases, so does the amount of contamination. The higher the humidity, the bigger your problem.

A vacuum pump "pulls" air and moisture out of the system before the system is damaged. The higher and more complete the vacuum, the more moisture is removed. That's why your SuperEvac pump is specifically engineered for high vacuums of 50 microns and better.

The 7 Important Steps of Initial Start-Up

1) Make sure motor is off and name plate voltage on motor bottom matches outlet voltage.

2) Remove exhaust filter. Fill with YELLOW

JACKET SuperEvac Pump Oil until oil level is even with oil level line. Replace exhaust filter.

3) With the intake port open, switch on the motor. When pump reaches running speed, connect the pump to the system.

4) To check the pump's performance, attach a micron gauge to the intake port, making sure that the gas ballast valve is closed. Turn on the pump. The micron gauge will display the ultimate vacuum reached.

5) Improve cold weather starting by opening intake and running your pump for 10-15 seconds.

6) Before turning pump off, break vacuum to atmosphere.

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7) Disconnect pump and cover the intake to keep out contaminants.

If an extension cord is needed, refer to the chart for proper sizing:

RECOMMENDED EXTENSION

CORD SIZES

Total Extension Cord Length (Feet)

25' 50' 100'

16 Ga. 14 Ga. 12 Ga.

Wire Gauge (AWG)

Oil Changes

CHANGE OIL AFTER EACH USE to protect pump components from contaminants pulled into pump during service. Place used oil in a sealable container and dispose properly in accordance with local regulations.

YELLOW JACKET vacuum pump oil is specially refined and formulated for extremely low vapor pressure and high pump efficiency at all temperature conditions. This means it can help you get a continued return on your pump

investment.

Vacuum Tips for Best Performance

1) For the fastest vacuum, connect your pump

directly to the system. Going through a manifold slows the job.

2) Use large a hose as possible, even though the system has 1/4" fittings. A 1/2” or 3/8” hose allows a much faster and more complete vacuum.

3) Use short a hose as practical to get maximum evacuation speed. Short hoses make evacuation faster than longer hoses. Long hoses slow the process.

4) Metal hoses are the most impervious so will be most effective in evacuation. at the same time to speed evacuation.

two pumps on very large systems to reduce vacuum time.

Dual Voltage Motor Power Conversion (if applicable)

STEP 1

Disconnect the motor from the power supply and remove. Remove the yellow “CAUTION” sticker from the back of the motor.

STEP 2

Pull up on the white plastic “arrow” switch using needle-nosed pliers until the switch is loose inside the motor housing (it will not come completely out of the motor).

Note: Do not try to turn or rotate the switch until it has been pulled up and is loose.

STEP 3

Point the arrow toward the desired voltage setting and push the switch back down into the motor. The arrow on the switch should be subflush of the motor housing when correctly installed at the desired voltage.

HI = 230 VAC / 50 Hz

LO = 115 VAC / 60 Hz

STEP 4

Replace the yellow

“CAUTION” sticker over the voltage selector switch.

Ensure that the voltage setting corresponds with the power supply that the motor is plugged into.

*Warranty is void if the set vacuum pump voltage does not match the power supply. Dual voltage motors are factory set to 230V/50Hz. 5

Basic Troubleshooting

4 most common comments on pump return paperwork:

1) "Will not pump." This usually means the pump will not pull a deep enough vacuum.

This can be caused by a bad seal on the gas ballast valve or contaminated oil.

SUGGESTION: Change gas ballast “O”-ring, change oil twice and recheck vacuum.

2) "Will not pull below 1000 microns."

SUGGESTION: Check gas ballast “O”-ring. Test pump to determine actual pull down. Remove all hoses and connect vacuum sensor directly to pump.

3) "Noisy." Pumps are noisy when they have not achieved a high vacuum. In intermediate vacuum, there will be oil, vane and exhaust noises.

SUGGESTION: Listen to the pump at high vacuum. If relatively quiet, the pump is running properly. If still noisy, there may be a system leak.

4) "Repair and return." This is the most difficult return comment to handle, since we are unsure of what needs to be done to keep the customer satisfied.

SUGGESTION: Be specific about the problem with your pump if returning it. Please include a separate sheet of paper documenting your problem.

Starting problems

 Be sure pump is plugged into live receptacle with line voltage plus or minus 10% of voltage on motor nameplate. Long extension cords can greatly reduce voltage and cause problems.

 Pump/oil temperature must be 30°F (-1°C) or higher. Open intake to atmosphere and switch on pump; run up to speed before connecting to system.

 Your SuperEvac pump features a heavy-duty high torque motor for cold weather starting, but dirty oil makes starting more difficult, causing unnecessary wear on your unit.

 Dropping your pump can damage it. In a locked pump condition, motor will not run and the thermal overload will kick out.

 Disconnect power cord and set pump with front cover face down on table. Reach into coupling area and try to rotate the coupling.

Do not use pliers. if the pump does not rotate, it is “locked up.”

Oil leakage

 If leak develops between front and rear half of oil case, tighten all seven screws. Replace gasket if necessary.

 If shaft seal leaks, replace it.

 Wipe pump dry and watch for source of leak.

Tighten screws and repair.

The steps to solving 95% of all problems

1) Check oil level when pump is running. It should be 1/2 to 5/8 up in the sight glass, the level necessary for proper operation.

2) Check all connections. Make sure they are tight. Put vacuum pump oil on gas ballast

“O”-ring.

Note:



This unit generates a deep vacuum that can be harmful to human tissue. Do not expose any part of the human body to the vacuum.



Do not operate this unit with the exhaust blocked or restricted.



Keep unit a minimum of 4” (10 cm) from objects for adequate cooling of motor.



Continuous sound pressure level of this unit can exceed 70dB (A).



Vacuum pump exhaust may contain harmful vapors. Provide adequate ventilation.

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Diagnostics Chart

Condition

Poor vacuum

Oil

Leaks

Pump won’t start

Pump Area

Quiet pump

Pump dropped

Ultimate vacuum of pump - does not meet mfg. spec

(read with thermocouple)

Bad thermocouple

Bad motor

Dirty oil

Air leaks

System leaks

Fitting sealant compound

Noisy pump

Exhaust

Seal

Case

Motor stalled hot/cold

Thermal

Possible Problem

Dirty oil

Coupling or set screw loose

Bad exhaust valve

Pump not oiling

Vanes not functioning

Stator misaligned

Worn pump bearings

System leaks

Low oil level

Dirty oil

Worn pump

Air leaks at fittings or gasket seals

Flush 1 to 3 times

Repair or replace

Repair or replace

Call factory

Call factory

Oil level high Adjust oil level

System vented pressure through pump Check oil level, add or replace oil

Pump tipped over

Pump shaft

Check oil level, add or replace oil

Repair

Worn or damaged seal

Motor loose

Gasket bolts loose

Replace

Adjust/tighten, check seal

Tighten

Oil drain fitting

Gasket damaged

Damaged motor

Damaged pump

Closed gas ballast on pumps

Low voltage

Cold weather cut-out

Dirty oil

Call factory

Call factory

Call factory

Clean or replace

Repair or replace

Flush 1 to 3 times

Repair or replace

Isolate/repair

Repair or replace

Repair leaks

Add/replace

Solution

Flush 1 to 3 times

Replace module, call factory

Replace/repair

Repair or replace

Replace

Repair or replace

Replace/call factory

Open intake fitting and gas ballast

Shorter extension cord

Open intake fitting for 1 minute to warm up while starting

Flush 1 to 3 times

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Condition Pump Area

Motor

Unusually noisy

High temp

Pump

Motor

Pump

Possible Problem

Worn motor

Loose motor bolts

Solution

Replace motor

Tighten bolts

Coupling drive

No end play on shaft

Dirt, low, improper oil

Air leaks:

Adjust/replace coupling

Adjust coupling

Flush and replace oil

1) caps/connection Tighten

2) Gaskets/”O”-rings

3) Fittings

Damaged or worn bearing

Damaged or worn stators

Pump out of adjustment

Low voltage

Dirty oil

Low oil

Lint/foreign material

Parts friction

Too small for system

Air leaks

Replace/put on oil

Replace/reseal

Call factory

Call factory

Call factory

Short extension cord

Flush and replace

Add/replace

Open gas ballast

Replace oil/call factory

Size pump for system

Replace/repair

Replacement Parts

Models #93530 and 93533 - 8 CFM (190 L/M)

2

4

3

11 or 12,

13, 14 and 15

4

1

5

8

7, 8, 9, 16, 17, 18

19 6, 10

Pump oil cover

1. Complete cover (individual parts listed below)

2. Handle with screw

3. Exhaust filter assembly

4. Oil fill/intake fitting

5. Oil sight glass

6. Oil drain/ballast plug

Vacuum cartridge

7. Complete cartridge with

oil cover gasket

Mounting body

8. Complete body (individual

parts listed below)

9. Shaft seal

10. “O”-ring for gas ballast

93351

93355

93354

93398

Damaged cords must be replaced by special assemblies available from the manufacturer or its distributors.

93370

93386

93359

93365

93358

93531

Motor

11. 1/2 hp - 230V/50 Hz*

(includes items 13 and 14)

12. 1/2 hp - 115V/60 Hz*

(includes items 13, 14 and 15a)

13. 8/32 x 7-1/4” motor bolts (4)

14. Rocker style switch

15a. 8’ long cord

15b. 8’ long EU cord (detachable

IEC-320)

15c. 8’ long UK cord (detachable

IEC-320)

Final assembly parts

16. 8/32 x 5/8” flat head screws

17. Oil cover gasket

18. Drive coupling

19. Right or left leg assembly with screws

Model Voltage Frequency Current

93530

93533

115V

230V*

60 Hz

50 Hz*

7A

4A

Weight

30.8 lbs. (14.0 kg)

32.5 lbs. (14.7 kg)

*The 93533 is factory wired for 230V. It can also be configured for 115Vac. Remove the motor switch plate and make connections as shown on the motor label.

1/2 hp

93513

1/2 hp

93505

93099

93117

93115

95431

95432

93506

93507

93047

93034

Ritchie Engineering Co., Inc.

YELLOW JACKET Products Div.

10950 Hampshire Ave., S.

Bloomington, MN 55438-2623

USA e-mail: [email protected]

Web Site: www.yellowjacket.com

Phone: 800-769-8370

Int’l Phone: 952-943-1333

Fax: 800-322-8684

Int’l Fax: 952-943-1605

© 2003-2014 Ritchie Engineering Co., Inc. Printed in U.S.A. Part #142884 Rev. C

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