Gast Linear Series Oilless User Manual
LINEAR OILLESS COMPRESSORS
OPERATION & MAINTENANCE MANUAL PART NO. 70-1570 F1-210 (REV. F)
DDL15
Life
Product Use Criteria
DBM40-DBM80
Thank you for purchasing this Gast product.
It is manufactured to the highest standards using quality materials.
Please follow all recommended maintenance, operational and safety
instructions and you will receive years of trouble-free service.
PLEASE READ THIS MANUAL COMPLETELY
BEFORE INSTALLING AND USING THIS MOTOR.
SAVE THIS MANUAL FOR FUTURE REFERENCE
AND KEEP IN THE VICINITY OF THE MOTOR.
Depends upon speed, operating pressure and motor maintenance
• Pump only clean, dry air.
• Operate at 40ºF - 104ºF (4.4ºC - 40ºC)
• Protect unit from dirt and moisture.
• Do not pump flammable or explosive gases or use in an atmosphere that contains
such gases.
• Corrosive gases and particulate material will damage unit. Water vapor, oil-based
contaminants or other liquids must be filtered out.
• Oil-less compressors require NO lubrication
• Consult your Gast Distributor/Representative before using at high altitudes.
DBMX100
www.gastmfg.com
A Unit of Corporation
ISO 9001 &14001 CERTIFIED
䊛Registered Trademark/姠Trademark of Gast Manufacturing Inc., Copyright 䊚2002 Gast Manufacturing Inc. All Rights Reserved.
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Disconnect electrical power at the circuit breaker
or fuse box before installing this product.
Install this product where it will not come into
contact with water or other liquids.
Install this product where it will be weather
protected.
Electrically ground this product.
Failure to follow these instructions can result in
death, fire or electrical shock.
WARNING
Electrical Shock Hazard
Plumbing
WARNING
DANGER
Your safety and the safety of others
i
s extremely important.
We have provided many important safety messages
in this manual and on your product. Always read
and obey all safety messages.
This is the safety alert symbol. This symbol
alerts you to hazards that can kill or hurt you and
others. The safety alert symbol and the words
“
DANGER” and “WARNING” will precede all safety
messages. These words mean:
You will
be killed or seriously injured if you don’t
follow instructions.
You can
be killed or seriously injured if you don’t
follow instructions.
All safety messages will identify the hazard, tell you
how to reduce the chance of injury, and tell you
what can happen if the safety instructions are not
followed.
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This product must be properly grounded.
Do not modify the plug provided. If it will not
fit the outlet, have the proper outlet installed
by a qualified electrician.
If repair or replacement of the cord or plug is
necessary, do not connect the grounding wire
to either flat blade terminal. The wire with
insulation that is green with or without yellow
stripes is the grounding wire.
Check the condition of the power supply wiring.
Do not permanently connect this product to
wiring that is not in good condition or is
inadequate for the requirements of this product.
Failure to follow these instructions can result in
death, fire or electrical shock.
WARNING
Electrical Shock Hazard
Remove plug from the OUT port. Connect with pipe
and fittings that are the same size or larger than the
product’s port.
Accessories
Install relief valve and gauge at outlet to monitor
performance. A check valve may be required to
prevent back streaming through the compressor.
Motor Control
It is your responsibility to contact a qualified
electrician and assure that the electrical installation
is adequate and in conformance with all national
and local codes and ordinances.
ELECTRI CAL CO NNECTI ON
INSTALLATION
Correct installation is your responsibility. Make sure
you have the proper installation conditions and that
installation clearances do not block air flow.
Mounting
This product must be installed on a flat, horizontal
surface. Mounting the product to a stable, rigid
operating surface and using shock mounts will reduce
noise and vibration.
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In the event of an electrical short circuit, grounding
reduces the risk of electric shock by providing an
escape wire for the electric current. This product may
be equipped with a power supply cord having a
grounding wire with an appropriate grounding plug.
The plug must be plugged into an outlet that is properly
installed and grounded in accordance with all local
codes and ordinances.
Check with a qualified electrician or serviceman if
the grounding instructions are not completely
understood, or if you are not sure whether the
product is properly grounded. Do not modify the
plug provided. If it will not fit the outlet, have the
proper outlet installed by a qualified electrician.
Model that is permanently wired:
Grounded Plug
Grounding Pin
Grounded Outlet
120-volt grounded connectors
shown. 220/240-volt grounded
connectors will differ in shape.
DIAGRAM A
Injury Hazard
Use only recommended air handling parts
acceptable for pressure not less than 10 psi.
When provided, motor terminal covers must be in
place for safe operation.
Product surfaces may become hot during operation,
allow product surfaces to cool before handling.
Do Not direct air stream at body. Air stream from
product may contain solid or liquid material that can
result in eye or skin damage, wear proper eye
protection.
Do Not spray flammable or combustible liquid.
Failure to follow these instructions can result in
burns, eye injury or other serious injury.
WARNING
This product must be connected to a grounded,
metallic, permanent wiring system, or an equipment
grounding terminal or lead on the product.
Power supply wiring must conform to all required safety
codes and be installed by a qualified person. Check
that supply voltage agrees with that listed on product
nameplate.
Model with a power supply cord:
This product must be grounded. For either 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 A)
OPERATION
Start Up
If pump fails to start or slows down significantly under load,
shut off and disconnect from power supply. Check that the
voltage is correct for the pump.
Extension cords:
Use only a 3-wire extension cord that has a 3-blade
grounding plug. Connect extension cord plug to a
matching 3-slot receptacle. Do not use an adapter. Make
sure your extension cord is in good condition. Check that
the wire gage of the extension cord is the correct size wire
to carry the current this product will draw. An undersized
cord is a potential fire hazard, and will cause a drop in line
voltage resulting in loss of power causing the product to
overheat. DIAGRAM B indicates the correct gage cord for
length required and the ampere rating listed on the product
nameplate.
If in doubt, use the next heavier gage cord. The smaller
the gage number, the heavier the wire gage.
Minimum Gage For Extension Cords
Amps Volts Length of cord in feet
120v 25 50 100 150 200 250 300 400 500
240v 50 100 200 300 400 500 600 800 1000
0-2 18 18 18 16 16 14 14 12 12
2-3 18 18 16 14 14 12 12 10 10
3-4 18 18 16 14 12 12 10 10 8
4-5 18 18 14 12 12 10 10 88
5-6 18 16 14 12 10 10 888
6-8 18 16 12 10 10 8666
8-10 18 14 12 10 88664
DIAGRAM B
Safety switch system(only in DBMX and DBMS series)
When diaphragm is broken, the protrusion on top of the
magnet frame will activate microswitch and shut down the
power to prevent further damage.
Alarm control system( optional )
The control is equipped with a three position toggle switch
(DIAGRAM C). Operation in each switch position is as follows.
RUN:
During normal operation the switch is in the RUN or
center position. The unit will function fully automated in
the RUN mode. In the event of two pressure situation
( low or high pressure) the controller will sound an alarm
and light a visual indicator light to attract the operator of
those conditions (lower & higher pressure).
MUTE:
The MUTE position will allow the unit to continue to run
but will silence the audible alarm while leaving the visual
alarm active.
TEST:
The TEST position will activate both the
audible and visual alarms to check to
see if they are functioning properly.
DIAGRAM C
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Disconnect electrical power supply cord before
performing maintenance on this product.
If product is hard wired into system, disconnect
electrical power at the circuit breaker or fuse box
before performing maintenance on this product.
Failure to follow these instructions can result in
death, fire or electrical shock.
Electrical Shock Hazard
WARNING
Injury Hazard
Product surfaces may become hot during operation,
allow product surfaces to cool before handling.
Do Not direct air stream at body. Air stream from
product may contain solid or liquid material that can
result in eye or skin damage, wear proper eye
protection.
Clean this product in a well ventilated area.
Failure to follow these instructions can result in
burns, eye injury or other serious injury.
WARNING
IMPORTANT SAFETY INSTRUCTIONS
FOR AQUARIUM USE
AQUARIUM SETUP DIAGRAM
WARNING – Read and follow all safety instructions.
To guard against injury, basic safety precautions
should be observed.
Guidelines for aquarium use:
1. Close supervision is necessary when any air pump
is used by or near children.
2. To avoid injury, DO NOT disassemble the air pump.
3. Always unplug an air pump from an outlet when not
in use, before putting on or taking off parts and
before cleaning. NEVER yank a cord to remove the
plug from the receptacle. Grasp the plug and pull
to disconnect.
. DO NOT use an aquarium air pump for other than
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its intended use. The use of attachments which are
not recommended or sold by Gast Manufacturing
may cause an unsafe condition.
5. DO NOT install or store the air pump where it will be
exposed to the weather or to temperatures below
freezing.
6. Make sure an air pump mounted on a tank is
securely installed before operating it.
7. Read and observe all the important notices on the
air pump.
SAVE THESE INSTRUCTIONS.
MAINTEN ANCE
DANGER – To avoid possible electrical shock,
special care should be taken since water is
employed in the use of aquarium equipment. If the
air pump, cord or plug are damaged in any way
whatsoever, DO NOT attempt repairs by yourself,
return the air pump to a Gast Authorized Service
Facility for inspection and repair.
Precautions for aquarium use:
1. If the air pump falls into the water, DO NOT reach
into the water to retrieve it.
2. Carefully examine the appliance after installation.
It should not be plugged into electrical power if there
is water found on any part of the pump.
3. DO NOT operate any air pump if it has a damaged
cord or plug, or if it is malfunctioning or has been
dropped or damaged in any manner.
4. To avoid the possibility of the air pump plug or
receptacle getting wet, position the aquarium stand
and tank to one side of a wall-mounted receptacle to
prevent water from dripping onto the receptacle or
plug. A “drip loop,” shown above in the AQUARIUM
SETUP DIAGRAM, should be arranged by the user
for each cord connecting an aquarium air pump to a
receptacle. The “drip loop” is that part of the cord
below the level of the receptacle, or the connector if
an extension cord is used, which prevents water
travelling along the cord from coming into contact
with the receptacle.
5. If the plug or receptacle do get wet, DO NOT grasp
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the plug to disconnect the air pump. Instead
disconnect the fuse or circuit breaker supplying
power to the receptacle. Then unplug the air pump
and examine for the presence of water on the plug
or receptacle.
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