Keiser 1021 User manual

SMALL AIR COMPRESSOR
MODELS: 1021 & 1022
OPERATOR MANUAL
• Operate at 32ºF - 104ºF (0ºC - 40ºC).
• For indoor use only. Protect unit from dirt & moisture.
• Pump only clean, dry air.
• Do not pump ammable or explosive gases or use in an atmosphere that contains such gases.
• Protect all surrounding items from exhaust air. This exhaust air can become very hot.
Note to Installer: Be sure to leave Operator Manual with the customer.
Note to Customer: Keep Operator Manual for future reference.
Skill level: Professional installation is required by qualied personnel.
Product failure due to improper installation is not covered under warranty.
PRODUCT USE CRITERIA:
READ CAREFULLY. KEEP THESE INSTRUCTIONS.
KEISER CORPORATION
2470 S. Cherry Ave.
Fresno, CA 93706
CUSTOMER SUPPORT
If you have any questions regarding the operation or installation of the air compressor after reading this manual, contact
Keiser Customer Support:
1 559 256 8000
[e-mail]
keiser.com/support
Telephone and Live Chat
Monday—Friday 9 am to 5 pm PST

1021 |1022 SMALL AIR COMPRESSOR 02
02 — GENERAL INFORMATION
02_INTRODUCTION
02_RECORD YOUR SERIAL NUMBER
02_REGISTER YOUR PURCHASE
03 — IMPORTANT SAFETY
INFORMATION
03_SAFETY & SERIAL NUMBER LABELS
04 — EQUIPMENT SPECIFICATIONS
05 — SETUP
05_PRODUCT OVERVIEW
05_PRE-OPERATION CHECKLIST
06_ASSEMBLY
06_TEST RUN
07 — DAILY OPERATION
07 — CARE AND MAINTENANCE
08 — TROUBLESHOOTING
10 — REGULATORY AND
COMPLIANCE NOTICES
10 — WARRANTY STATEMENT
Congratulations on the purchase of your new Keiser Small
Air Compressor and welcome to the Keiser family. For your
safety, and to ensure optimal equipment performance,
please read and understand this manual before use of the
air compressor.
If you have any questions regarding assembly or operation
after reading this manual, our Keiser Customer Support
team will be happy to assist by telephone at 1 559 256 8000
or via live chat at keiser.com/support (Monday—Friday, 9 am
to 5 pm Pacic Time), or by email at [e-mail].
Yours in Health,
Keiser Corporation
Please take a moment at this time to record the serial
number (“Serial No.”) in the space provided below.
Serial No.:
INTRODUCTION
RECORD YOUR SERIAL NUMBER
GENERAL INFORMATION
CONTENTS
Register your product to stay informed of safety notications
and for faster, more accurate warranty service.
Scan the QR Code below to access the interactive online
warranty registration.
https://www.keiser.com/forms/warrantyregistration
REGISTER YOUR PURCHASE
SCAN
Serial Number Location
NOTICE: Figures and illustrations in this Operation Manual
are provided for reference only and may differ from the
actual product appearance. Product design and specication
may change without notice.
Keiser, the Keiser logo, and other trademarks associated with Keiser products referred to in this publication are trademarks of Keiser Corporation.
© Copyright 2021, Keiser Corporation. All rights reserved.
Distribution and copying of this document, use and communication of its contents is not permitted without written authorization from Keiser Corporation. The content
of this document is furnished for informational use only, may be subject to change without notice, and should not be construed as a commitment by Keiser Corporation.
Every effort has been made to ensure that the information in this manual is accurate. Keiser Corporation is not responsible for printing or clerical errors.

1021 |1022 SMALL AIR COMPRESSOR 03
Itis thesoleresponsibilityofthepurchaserofKeiser Corporation
equipment to instruct all individuals, whether they are the
end-user or supervising personnel, on proper usage of the
equipment.KeiserCorporationrecommendsthatall usersofits
equipmentbeinformedofthefollowinginformationbeforeuse.
GENERAL SAFETY RULES
1. Read these instructions. Keep these instructions.
2. Heed all warnings. Follow all instructions.
3. All repairs and maintenance shall only be performed by
Keiser-certied technicians. Only use replacement parts
recommended by Keiser Corporation.
4. Use the air compressor for its intended purpose as
described in this manual; for indoor use only.
5. The air compressor is not a toy. Children shall not play
with the air compressor. Keep children and pets clear
from the air compressor at all times, especially while
in use. Cleaning and user maintenance shall not be
performed by children.
6. The air compressor is not to be used by persons
(including children) with reduced physical, sensory or
mentalcapabilities,orlackofexperienceandknowledge,
without instruction and constant supervision.
7. Do not use attachments or accessories that have not been
provided or recommended by the manufacturer.
8. The air compressor is intended for use in training areas
of organizations where access and control are specically
regulated by a person responsible for determining the
suitability of use and maintenance.
9. Operate at 32ºF - 104ºF (0ºC - 40ºC). Keep away from
extreme temperatures and high humidity.
10. Locatetheaircompressorinaclean,dry,andwell-ventilated
area. Place the air compressor on a at, level surface.
11. Maintain adequate air ow, minimum 3-inch (76 mm)
obstacle-free perimeter required.
12. Use an electrical circuit with the appropriate power rating.
Do not use extension cords or power cord adapters.
13. Do not pump ammable or explosive gases or use in
an atmosphere that contains such gases. Protect all
surrounding items from exhaust air. This exhaust air can
become very hot.
14. Keep the air compressor away from the workout zone.
Ensure the power supply is easily accessible.
15. Beforeusingtheaircompressor, performthePre-Operation
Checklist (see page 5). If any damage is found, do not use
untilallrepairshavebeencompletedandtestedbyaKeiser-
certied technician.
16. Users, agents, and/or anyone directing the use of the
air compressor shall determine the suitability of the air
compressor for its intended use, and said parties are
specically put on notice that they shall assume all risk
and liability in connection herewith.
CONVENTIONS USED
This Operator Manual contains the following marks:
DANGER: Indicates an imminently hazardous situation
which, if not avoided, will result in death or serious injury.
WARNING: Indicates a hazardous situation that, if not
avoided, could result in death or serious injury.
CAUTION: Indicates a hazardous situation that, if not
avoided, could result in minor or moderate injury.
HEAVY OBJECT: Indicates help is required during lifting
to avoid muscle strain and/or back injury.
SAFETY & SERIAL NUMBER LABELS
Maintain safety and serial number labels. Do not remove
labels for any reason. They contain important information.
If unreadable or missing, contact Keiser Corporation for a
replacement (see front cover for contact information).
IMPORTANT SAFETY INFORMATION
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00102XXXX

1021 |1022 SMALL AIR COMPRESSOR 04
Dimensions and features for both models:
• Motor: 3/4 HP
• Air Storage Tank Capacity: 2.5 gallons (9.5 L)
• Equipment Capacity: Up to 8 Keiser pneumatic machines
Based on normal operating conditions
• Pressurized Air Delivery Range: 100–120 psig (6.89–8.27 bar)
• Lubrication Type: Oil-less (requires no lubrication)
• Decibel Rating: 61–63 dB
Under normal operating conditions, distance of 39.37 inches (1 m)
EQUIPMENT SPECIFICATIONS
26 inches
(661 mm) 14 inches
(356 mm)
82 lbs
(37 kg)
16 inches
(407 mm)
Air Storage Tank
The equipment contains four air storage tanks (air accumulator)
with the following operating parameters:
Maximum working pressure: 125 psi (8.6 bar)
Maximum working temperature: 104ºF (40ºC)
Minimum working temperature: 32ºF (0ºC)
Maximum vessel capacity: 140 in3 (2.29 L) per tank
Model 1021 Model 1022
Voltage: 115V~ 230V~
Current: 5A 2.5A
Frequency: 60 Hz 50 Hz

1021 |1022 SMALL AIR COMPRESSOR 05
INSPECT FOR DAMAGE
1. Before use, inspect all parts for damage, including:
PRE-OPERATION CHECKLIST
SETUP
PRODUCT OVERVIEW
A. Cover
B. Handle
C. Display Lens
D. Air Tank
E. Dryer Tank
F. Air Outlets (left side)
• 1/4” quick-disconnect (qty2)
• 3/8” compression tting (qty 1)
G. Power Connector, Cord
H. Base
I. Air Outlets (right side)
• 1/4” quick disconnect (qty 3)
J. Louver
K. Purge Tank
L. Air Line (black tubes behind/under tanks, not
shown)
WARNING
FIRE HAZARD
• It is normal for the air compressor motor and pressure
switch to produce sparks while operating. If sparks come
in contact with vapors from solvents or gasoline, they may
ignite and cause a re or explosion.
• Always operate the air compressor a safe distance away
from ammable items. Use in well-ventilated areas.
• Protect all surrounding items from exhaust air; exhaust
air can become hot.
• Never exceed the maximum rated pressure.
CAUTION
HOT SURFACE
• Air compressor surfaces become hot during operation.
• Do not touch hot surfaces (cover) during operation as they
can cause severe burns.
• Allow the air compressor to cool before touching it.
• Do not place a storage cover on the unit during operation.
LOCATION AND PLACEMENT
HEAVY OBJECT: Equipment weighs 82 lbs (37 kg).
Help is required during lifting to avoid muscle strain and/or back
injury.
• Locate the air compressor in a clean, dry, and well-
ventilated area. Place the air compressor on a at, level
surface.
• Maintain adequate air ow, minimum 3-inch (76 mm)
obstacle-free perimeter required.
• Use an electrical circuit with the appropriate power
rating, avoid the use of an extension cord.
• Keep the air compressor away from the workout zone.
Ensure the power supply is easily accessible.
□Power Cord
□Air Tank
□Dryer Tanks
□Purge Tanks
□Air Lines
(black tubes)
2. Check all tubes are rmly connected.
If any damage is found, do not use until all repairs have been
completed and tested by a Keiser-certied technician.
D
H
K
C
G
E
F
I
B
A
J

1021 |1022 SMALL AIR COMPRESSOR 06
1. Plug the power cord to the appropriate power supply.
Within the rst 10 seconds, the software version will display “1.23,”
followed by the air tank pressure, sequentially.
Example: 85 psig will display as 8-5 [pause]
2. Slowly purge the air tank until the motor powers ON.
3. Allow the air tank to ll (approximately 2–5 minutes).
4. Check for gauge display to reach between 118–120 psig
(8.14–8.27 bar).
TEST PASS:
• The software will automatically power OFF the motor when
the display reads between 118–120 psig (8.14–8.27 bar).
• No air leaks detected.
TEST FAIL:
• The motor does not power OFF when the display reads
between 118–120 psig (8.14–8.27 bar).
• An air leak detected.
• An error buzz sound and error code displays ( “E-r-#” ).
If the test fails, make note of the error code (if present)
and disconnect the power cord from the power supply to
power OFF. Refer to the troubleshooting section (page 8)
for possible corrective action and perform the Test Run
procedure again. If failure persists, contact your Keiser
dealer, distributor, or Keiser Customer Support (see front
cover for contact information).
Air compressor maintenance shall only be performed by
Keiser-certied technicians.
1. Plumbing: Connect a 1/4-inch quick-disconnect (QD) from
the Keiser equipment to any one of the ve QD ports.
A 3/8-inch compression tting port is also available for
3/8-inch air supply congurations (Tools: Adjustable
Wrench and 5/8-inch Wrench).
2. Power Cord: Connect the power cord to the power
connector.
3. Proceed to the Test Run section.
ASSEMBLY
ELECTRIC SHOCK HAZARD
• Install this product where it will not come into contact with
water or other liquids.
• Ensure the power cord is free of damage before connecting
to the power supply.
• If the power cord is damaged, or shows signs of excessive
wear, stop use of the equipment immediately. Do not use
the equipment until the power cord is replaced. Only use
power cords provided by Keiser Corporation.
• This product must be properly grounded. For 120-volt or
220/240-volt circuits, connect power supply cord grounding
plug to a matching grounded outlet. Do not use an adapter
(See diagram below).
• The plug must be plugged into an outlet that is properly
installed and grounded in accordance with all local codes
and ordinances.
• Do not modify the power cord provided. Check with a qualied
electrician or serviceperson if grounding instructions are
not completely understood.
• Failure to follow these instructions can result in death, re
or electrical shock.
Grounded
Plug
120-volt grounded connectors shown.
220/240-volt grounded connectors will differ in shape.
Grounding
Pin
Grounded
Outlet
Neutral Hot
DANGER
ELECTRICAL POWER REQUIREMENTS
Before using the air compressor, check that supply voltage
agrees with that listed on product serial number label or
refer to the Equipment Specications section (page 4).
Low voltage or an overload circuit can cause the overload
protection system circuit breaker to trip.
WARNING
EXPLOSION HAZARD
• Exercise caution when using pressurized air.
• Only use hoses and air ttings provided by the manufacturer.
• Inspect all hoses and ttings for leaks or wear. If leaks or
wear are detected, stop use and replace parts immediately.
Do not use until repairs have been completed and tested
by a Keiser-certied technician.
• Never leave pressurized air in the air tanks when storing
the air compressor or during downtime (maintenance).
• If the air tank develops a leak, replace the air tank
immediately. Never repair, weld or make modications to
the air tanks or their attachments.
• Never make adjustments to the factory-set pressures.
TEST RUN

1021 |1022 SMALL AIR COMPRESSOR 07
1. Power ON: Plug the power cord to the appropriate power
supply to power ON the air compressor.
The air compressor is not equipped with a power ON/OFF
switch. Power is controlled by the power cord plugged at
the electrical outlet.
The air compressor software is factory preset to shut off
the motor at 118–120 psig (8.14–8.27 bar) and to re-start at
97 ±5 psig (6.69 ±0.34 bar).
2. Power OFF: The air compressor is designed to remain in
the power ON condition. There is no need to power OFF
the air compressor, other than for care and maintenance
purposes (see the Care and Maintenance section below
for complete instructions).
Clean the air compressor exterior with a soft brush or wipe
with a moistened cloth using only water and mild soap.
Wipe dry the air compressor.
Do not use cleaning solvents as they can be toxic and
ammable.
Always keep parts clean from dirt and dust for optimal
equipment performance.
Make sure all connections are tight. Do not overtighten. Any
leaks at air line connections will diminish air compressor
performance.
To test for leaks, spray a small amount of soapy water on the
area suspected of leaking. If the soap bubbles, try tightening
the connection or replace the broken part. Do not install
used compression nuts. Do not use the air compressor until all
repairs have been completed and tested by a Keiser-certied
technician.
DAILY OPERATION
CARE AND MAINTENANCE
CAUTION
HOT SURFACE
Before cleaning the air compressor:
1. Disconnect the power cord from the power supply.
2. Allow the air compressor to cool down.
CLEANING
Lubrication: The motor is oil-less and requires no lubrication.
Air Lines: Check for damaged, torn, or otherwise broken Air
Lines. If any damage is found, do not use until all repairs have
been completed and tested by a Keiser-certied technician.
Inspect: Periodically inspect the air compressor for damaged,
worn, or broken parts; check for normal operating sounds and
any error codes. Make note of any error code and contact
Keiser Customer Support for service and corrective action.
All repairs and maintenance shall only be performed by Keiser-
certied technicians. Do not open any parts or components
of the air compressor or attempt to resolve any issue on
your own. Only use replacement parts recommended by Keiser
Corporation.
MAINTENANCE
TEST FOR LEAKS
1. Disconnect the power cord to power OFF, and wrap the
power cord around the air compressor handle to reduce
the risk of damage.
2. Disconnect all 1/4-inch quick-disconnect (QD) or 3/8-inch
air line from the air compressor.
3. Slowly purge the air tanks to release all air pressure.
4. Clean the air compressor to remove all dirt and dust.
5. Place a cover over the air compressor to protect the unit
from dust and moisture.
6. Do not stack or store any items on top of or around the
air compressor.
7. Store indoors.
STORAGE

1021 |1022 SMALL AIR COMPRESSOR 08
TROUBLESHOOTING
WARNING: Repair or maintenance shall only be performed by Keiser-certied technicians. Failure to follow these
instructions can result in death, electrical shock, or re.
WARNING: RiskofUnsafe Operation.The aircompressorcycles automaticallywhenpower ison. Whentroubleshooting,
you may be exposed to voltage sources or compressed air. Before troubleshooting, unplug or disconnect the electrical
supply to the air compressor, purge air pressure, and allow the air compressor to cool.
Error Code Description/Symptoms Probable Cause Solution
E r 1 Check Valve leak detected. Check Valve failure. Once
the compressor builds up
pressure and shuts off,
the pressure bleeds down
rapidly to a low pressure
(approximately 10 psi).
Replace Check Valve.
E r 2, E r 8 Motor run-time is too long
(over one hour); failure to
reach shut-off pressure
(approximately 120 psi).
NOTE: Shut-off will occur
every 5 minutes to purge the
dryer assembly (display: E r
8). If after 20 cycles the unit
fails to reach the shut-off
pressure, the compressor will
shut down and not restart
(display: E r 2).
Air leak within the system. Check for air leaks in the
compressor and air line system:
1. Disconnect all exercise
machines from the
compressor.
2. Reset the compressor
(disconnect, then reconnect to
power supply).
3. Run the compressor.
Check the display for building
pressure and shut-off pressure at
approximately 120 psi.
If the compressor builds pressure
and shuts down at shut-off
pressure, the leak is likely at an
exercise machine or in the air
supply line. Check the Air Line
system for leaks; connect exercise
machines one at a time to check
for leaks.
If the compressor fails to shut
down (exercise machines are
disconnected), the leak is likely
in the compressor. Check the
compressor hoses/ttings for
leaks.
E r 3, E r 4, E r 5 Purge tank pressure did not
drop fast enough.
NOTE: The purge tank
must bleed air through the
dryer to regenerate. This
must happen before the
compressor can restart. If
this takes too long, these
error codes will display.
Blockage in the Dryer
Module.
Replace the Dryer Module and
Elbow Connector if corrosion is
detected.
Mechanical failure of the
Solenoid Valve
Replace the Solenoid Valve.
If you suspect a problem with the air compressor, check the Display Lens for an error code (“E r” followed by a number).
An error code will remain on the display until the error self-corrects or when the compressor is reset (disconnect and
re-connect to power supply) in an attempt to x the error. The following table lists the error code descriptions, probable
causes, and solutions.

1021 |1022 SMALL AIR COMPRESSOR 09
Error Code Description/Symptoms Probable Cause Solution
E r 6 Motor START signal was not
received by the Computer
Control System (CCS).
NOTE: The motor may
have been given a signal to
start, however no pressure
increase was detected in
the Purge Tank.
Major air leak in the system. Check compressor hoses and
ttings for leaks; connect
exercise machines to the
compressor one at a time to
check for leaks (see leak check
procedure in the “Solution”
column for E r 2, E r 8)
Motor failure or Start
circuit failure.
Disconnect, then reconnect the
compressor to power supply.
Listen for the motor start and
the Solenoid Valve click:
• If the motor runs then
check plumbing to
ensure that all hoses are
connected.
• If the motor does not start
and the Solenoid Valve
clicks, the motor is faulty
and must be replaced.
• If the motor does not start
and the Solenoid Valve
does not click, the Circuit
Board is faulty and must be
replaced.
E r 7 Insufcient/no pressure
build in Air Tanks.
Major air leak in one of the
exercise machines or in the
compressor plumbing.
Check compressor hoses and
ttings for leaks; connect
exercise machines to the
compressor one at a time to
check for leaks (see leak check
procedure in the “Solution”
column for E r 2, E r 8)
E r 9 Air pressure building too
slow.
Dirty or blocked Inlet-
Mufer Assembly.
Ensure the compressor located
in a clean, dry, and well-
ventilated area; vents are not
blocked. Replace Inlet-Mufer
Assembly.
E r 10
Formerly “E r A”
1030X, 1031X models only
Communication failure
between the two computer
Circuit Boards.
Damaged Communication
Cable.
Replace the Communication
Cable.
Circuit Board failure.
NOTE: Either Circuit Board
can cause itself or the
other to display the error.
Replace the Circuit Board(s).
E r 11 Purge Valve leak detected. Loose hose/tting, o-ring
failure, or loose canister.
Check for loose hose/tting;
ensure the o-ring is not
damaged/torn and canister is
threaded properly and snug on
the bushing.

1021 |1022 SMALL AIR COMPRESSOR 10
WARRANTY STATEMENT
REGULATORY AND COMPLIANCE NOTICES
For information about Keiser’s product warranty and thereto related information, refer to keiser.com/support/warranty.
COMPLIANCE
This device complies with Industry Canada Licence-Exempt RSS standard(s). Operation is subject to the following two conditions:
(1) this device may not cause interference, and (2) this device must accept any interference, including interference that may
cause undesired operation of the device.
Le present appareil est conforme aux CNR d'industrie Canada applicables aux appareils radio exempts de licence. L’exploitation
est autorisee aux deux conditions suivantes: (1) l’appareil ne doit pas produire de brouillage, et (2) l’utilisateur de l’appareil doit
accepter tout brouillage radioelectrique subi, meme si le brouillage est susceptible d’en compromettre le fonctionnement.
REGULATORY NOTICE
NOTE: This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to part 15 of the
FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation.
This equipment generates, uses and can radiate radio frequency energy and, if not installed and used in accordance with the
instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will
not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which
can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or
more of the following measures:
— Reorient or relocate the receiving antenna.
— Increase the separation between the equipment and receiver.
— Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.
— Consult the dealer or an experienced radio/TV technician for help.
California Proposition 65 Warning: This product contains chemicals known in the State of California to cause cancer,
birth defects, and/or other reproductive harm.
This equipment contains electrical or electronic components that must be recycled properly to comply with
Directive 2002/96/EC of the European Union regarding the disposal of waste electrical and electronic equipment
(WEEE). Contact your local dealer for procedures for recycling this equipment.

1021 |1022 SMALL AIR COMPRESSOR 11
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1021 |1022 SMALL AIR COMPRESSOR
CUSTOMER SUPPORT
If you have any questions regarding the operation or
installation of the air compressor after reading this
manual, contact Keiser Customer Support:
105513_D
KEISER CORPORATION
2470 S. Cherry Ave.
Fresno, CA 93706
1 559 256 8000
[e-mail]
keiser.com/support
12
Telephone and Live Chat
Monday—Friday 9 am to 5 pm PST