SuperEvac Vacuum Pump

SuperEvac Vacuum Pump
SuperEvac™ Vacuum Pump
for Ammonia and NH3 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.
cooperate in assessing damage if the pump is returned to the factory prepaid.
All YELLOW JACKET SuperEvac™ vacuum
pumps for ammonia and NH3 systems are completely Carton contents include:
tested and inspected to assure compliance with
 SuperEvac™ Vacuum Pump for Ammonia and
Ritchie factory specifications prior to shipment..
NH3 Systems.
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

Bottle of YELLOW JACKET® SuperEvac™
Pump Oil


Owner's manual
Warranty registration card
To validate warranty, mail registration card
within 10 days.
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]
2
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)
Heavy duty high
torque motor for
cold weather
starting.
Pump exhaust also doubles as oil fill
port. Use YELLOW JACKET
oil for assurance of a
clean,fast job.
Wide-view
sight glass
for easier
Monitoring
of oil level.
Longer heat dissipation fins for
a cooler running unit.
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.
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.
If found defective, we will either replace or repair
at our option products within two years of factory
3
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
Inches
mercury
Microns
212°F (100°C)
0
760,000
151°F (66°C)
22.05
200,000
101°F (38°C)
27.95
50,000
78°F (26°C)
28.95
25,000
35°F (2°C)
29.72
5,000
1°F (17°C)
29.882
1,000
- 50°F (-46°C)
29.919
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,
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.
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
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.
RECOMMENDED EXTENSION
CORD SIZES
Total Extension Cord Length (Feet)
25'
50'
100'
16 Ga.
14 Ga.
12 Ga.
Wire Gauge (AWG)
7) Disconnect pump and cover the intake to
keep out contaminants.
If an extension cord is needed, refer to the chart
for proper sizing:
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 as 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)
4)
Metal hoses are the most impervious so will
be most effective in evacuation.
5)
Evacuate through both high and low sides
at the same time to speed evacuation.
6)
Use two pumps on very large systems to
reduce vacuum time.
Use as short a hose as practical to get maximum evacuation speed. Short hoses make
evacuation faster than longer hoses. Long
hoses slow the process.
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 volt5
age motors are factory set to 230V/50Hz.
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:





6
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.
Diagnostics Chart
Condition
Pump Area
Quiet pump
Poor
vacuum
Ultimate
vacuum of
pump - does
not meet
mfg. spec
(read with
thermocouple)
Noisy
pump
Exhaust
Oil
Leaks
Seal
Case
Pump
won’t
start
Motor
stalled
hot/cold
Thermal
Possible Problem
Solution
Dirty oil
Flush 1 to 3 times
Coupling or set screw loose
Repair or replace
Bad exhaust valve
Repair or replace
Pump not oiling
Call factory
Vanes not functioning
Call factory
Stator misaligned
Call factory
Worn pump bearings
Call factory
Pump dropped
Call factory
Bad thermocouple
Clean or replace
Bad motor
Repair or replace
Dirty oil
Flush 1 to 3 times
Air leaks
Repair or replace
System leaks
Isolate/repair
Fitting sealant compound
Repair or replace
System leaks
Repair leaks
Low oil level
Add/replace
Dirty oil
Flush 1 to 3 times
Worn pump
Replace module, call factory
Air leaks at fittings or gasket seals
Replace/repair
Oil level high
Adjust oil level
System vented pressure through pump Check oil level, add or replace oil
Pump tipped over
Check oil level, add or replace oil
Pump shaft
Repair
Worn or damaged seal
Replace
Motor loose
Adjust/tighten, check seal
Gasket bolts loose
Tighten
Oil drain fitting
Repair or replace
Gasket damaged
Replace
Damaged motor
Repair or replace
Damaged pump
Replace/call factory
Closed gas ballast on pumps
Open intake fitting and gas ballast
Low voltage
Shorter extension cord
Cold weather cut-out
Open intake fitting for 1 minute
to warm up while starting
Dirty oil
Flush 1 to 3 times
7
Condition
Pump Area
Possible Problem
Motor
Unusually
noisy
Solution
Worn motor
Replace motor
Loose motor bolts
Tighten bolts
Coupling drive
Adjust/replace coupling
No end play on shaft
Adjust coupling
Dirt, low, improper oil
Flush and replace oil
Air leaks:
Pump
Motor
High
temp
Pump
1)
caps/connection
Tighten
2)
Gaskets/”O”-rings
Replace/put on oil
3)
Fittings
Replace/reseal
Damaged or worn bearing
Call factory
Damaged or worn stators
Call factory
Pump out of adjustment
Call factory
Low voltage
Short extension cord
Dirty oil
Flush and replace
Low oil
Add/replace
Lint/foreign material
Open gas ballast
Parts friction
Replace oil/call factory
Too small for system
Size pump for system
Air leaks
Replace/repair
Replacement Parts
Models #93530 and 93533 - 8 CFM (190 L/M)
2
4
3
4
11 or 12,
13, 14 and 15
1
5
7, 8, 9, 16, 17, 18
8
19
6, 10
Pump oil cover
Motor
1. Complete cover (individual
parts listed below)
93351
11. 1/2 hp - 230V/50 Hz*
(includes items 13 and 14)
1/2 hp
93513
2. Handle with screw
93370
3. Exhaust filter assembly
93386
12. 1/2 hp - 115V/60 Hz*
(includes items 13, 14 and 15a)
1/2 hp
93505
4. Oil fill/intake fitting
93359
13. 8/32 x 7-1/4” motor bolts (4)
93099
5. Oil sight glass
93365
14. Rocker style switch
93117
6. Oil drain/ballast plug
93358
15a. 8’ long cord
93115
15b. 8’ long EU cord (detachable
IEC-320)
95431
15c. 8’ long UK cord (detachable
IEC-320)
95432
Vacuum cartridge
7. Complete cartridge with
oil cover gasket
93531
Mounting body
Final assembly parts
8. Complete body (individual
parts listed below)
93355
9. Shaft seal
93354
10. “O”-ring for gas ballast
93398
Damaged cords must be replaced by special
assemblies available from the manufacturer or
its distributors.
Model
Voltage
16. 8/32 x 5/8” flat head screws
93506
17. Oil cover gasket
93507
18. Drive coupling
93047
19. Right or left leg assembly with
screws
93034
Frequency
Current
Weight
93530
115V
60 Hz
7A
30.8 lbs. (14.0 kg)
93533
230V*
50 Hz*
4A
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.
Ritchie Engineering Co., Inc.
YELLOW JACKET Products Div.
10950 Hampshire Ave., S.
Bloomington, MN 55438-2623
USA
Phone:
800-769-8370
Int’l Phone: 952-943-1333
Fax:
800-322-8684
Int’l Fax: 952-943-1605
e-mail: [email protected]
Web Site: www.yellowjacket.com
© 2003-2014 Ritchie Engineering Co., Inc.
Printed in U.S.A.
Part #142884 Rev. C
9
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