Welch's Water Pump 2522 User Manual
Welch Vacuum Technology
Read and understand the following information and
instructions included with your Welch Dry Dual Function
Pressure &Vacuum Pumps before using. This information is
for your safety and to prevent damage to the pumps.
Read and understand the following information and
instructions included with your Welch Dry Dual Function
Pressure &Vacuum Pumps before using. This information is
for your safety and to prevent damage to the pumps.
I. SAFETY INFORMATION
I-1.
I-1.
CAUTION TO PREVENT INJURY...
I-1a.
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.
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.
I-1b.
Keep the cord away from heated surfaces.
I-1c.
Never block any air openings or place it on a soft surface
where the openings may be blocked. The air openings
are for ventilation of the motor inside the housing. Keep
all air openings free of lint, dirt, and other foreign objects.
where the openings may be blocked. The air openings
are for ventilation of the motor inside the housing. Keep
all air openings free of lint, dirt, and other foreign objects.
I-1d.
Never drop or insert fingers or any other object into any
openings.
openings.
I-1e.
Do not operate this product where oxygen is being
administered.
administered.
I-1f.
This pump is thermally protected and can automatically
restart when the protector resets. Always disconnect
power source before servicing.
restart when the protector resets. Always disconnect
power source before servicing.
I-1g.
Wear safety glasses or goggles when operating this
product.
product.
I-1h.
Use only in well ventilated areas.
I-1i.
Do not use any tools or attachments without first
determining maximum air pressure for that tool or
attachment.
determining maximum air pressure for that tool or
attachment.
I-1j.
Never point any air nozzle or air sprayer toward another
person or any part of the body.
person or any part of the body.
I-1k.
All electrical products generate heat. To avoid serious
burns never touch unit during or immediately after
operation.
burns never touch unit during or immediately after
operation.
I-1l.
Be sure to properly identify intake and discharge before
using pump. See Section II-5.
using pump. See Section II-5.
I-2.
CAUTION: TO REDUCE RISK OF
ELECTRICAL SHOCK…
ELECTRICAL SHOCK…
l-2a.
Do not disassemble. Disassembly or attempted repairs
if accomplished incorrectly can create electrical shock
hazard. Refer servicing to qualified service agencies
only.
if accomplished incorrectly can create electrical shock
hazard. Refer servicing to qualified service agencies
only.
l-2b.
Unit is supplied with a three pronged plug Be sure to
connect pump to a properly grounded outlet only.
connect pump to a properly grounded outlet only.
I-3.
WARNING: TO REDUCE RISK OF
ELECTROCUTION…
ELECTROCUTION…
I-3a.
Do not use this product in or near area where it can fall
or be pulled into water or other liquids.
or be pulled into water or other liquids.
I-3b.
Do not reach for this product if it has fallen into liquid.
Unplug immediately.
Unplug immediately.
I-3c.
Never operate this product outdoors in the rain or in a
wet area.
wet area.
I-4.
DANGER: TO REDUCE RISK
OF EXPLOSION OR FIRE…
OF EXPLOSION OR FIRE…
I-4a.
Do not use this pump in or near explosive atmospheres
or where aerosol (spray) products are being used.
or where aerosol (spray) products are being used.
I-4b.
Do not pump anything other than atmospheric air.
1-4c.
Do not pump combustible liquids or vapors with this
product or use in or near an area where flammable or
explosive liquids or vapors may exist.
product or use in or near an area where flammable or
explosive liquids or vapors may exist.
I-4d.
Do not use this product near flames.
FAILURE TO OBSERVE THE ABOVE
SAFETY PRECAUTIONS COULD RESULT
IN SEVERE BODILY INJURY, INCLUDING
DEATH IN EXTREME CASES.
SAFETY PRECAUTIONS COULD RESULT
IN SEVERE BODILY INJURY, INCLUDING
DEATH IN EXTREME CASES.
II. INSTALLATION
Il-1. INTRODUCTION
This manual has been compiled not only for the care and
maintenance of the Welch Dry Dual Function Pressure/Vacuum
pump now in your possession, but as a helpful reference and guide
to prevent many problems which can occur if used improperly.
Il-1. INTRODUCTION
This manual has been compiled not only for the care and
maintenance of the Welch Dry Dual Function Pressure/Vacuum
pump now in your possession, but as a helpful reference and guide
to prevent many problems which can occur if used improperly.
II-2. UNPACKING
Carefully remove the Pressure/Vacuum pump from the shipping
case and unfasten and remove the wooden skid. Preserve all
paperwork for future reference. If damage has occurred from
shipment a claim must be filed 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 identification.
Do not return the pump to the factory without first calling for a
returned goods number.
Carefully remove the Pressure/Vacuum pump from the shipping
case and unfasten and remove the wooden skid. Preserve all
paperwork for future reference. If damage has occurred from
shipment a claim must be filed 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 identification.
Do not return the pump to the factory without first calling for a
returned goods number.
Il-3. PUMP MOUNTING
Rubber feet are attached to the pump. Rubber feet are excellent
for applications involving a semi-flexible surface such as a bench
top; they help to isolate noise and eliminate creeping. All Pressure/
Vacuum pumps should he mounted on a horizontal plane.
Rubber feet are attached to the pump. Rubber feet are excellent
for applications involving a semi-flexible surface such as a bench
top; they help to isolate noise and eliminate creeping. All Pressure/
Vacuum pumps should he mounted on a horizontal plane.
II-4. PUMP LOCATION
The pressure/vacuum pump should be located preferably in a
clean, dry, and well ventilated area. Please be sure not to block
the ventilation holes located on the motor housing. The pump
should be placed where the surrounding temperature remains
between 10°C and 40°C (50°F and 104°F). Always check to insure
the location chosen is protected from direct or indirect moisture
contact. Welch recommends that the pump be installed at the
highest point within the system to prevent possible water
condensate from entering the pump. The pump should be located
as closely to its system in order to utilize it most efficiently.
The pressure/vacuum pump should be located preferably in a
clean, dry, and well ventilated area. Please be sure not to block
the ventilation holes located on the motor housing. The pump
should be placed where the surrounding temperature remains
between 10°C and 40°C (50°F and 104°F). Always check to insure
the location chosen is protected from direct or indirect moisture
contact. Welch recommends that the pump be installed at the
highest point within the system to prevent possible water
condensate from entering the pump. The pump should be located
as closely to its system in order to utilize it most efficiently.
Warning! The motor is thermally protected and
will automatically restart unexpectedly when
the overload device resets. Don’t pump
flammable or explosive gases or vapors or
operate this pump in an atmosphere containing
flammable or explosive gases or vapors.
will automatically restart unexpectedly when
the overload device resets. Don’t pump
flammable or explosive gases or vapors or
operate this pump in an atmosphere containing
flammable or explosive gases or vapors.
II-5. INTAKE AND DISCHARGE PROVISIONS
Two regulators and two gauges make it easy to meet your vacuum
and pressure requirements. The vacuum regulator and vacuum
dial gauge is attached to the intake port. The vacuum regulator
allows the vacuum level to be set between roughly atmospheric
pressure and the maximum vacuum allowed for the pump model.
A moisture trap keeps water from accidentally being drawn into
the unit.
Two regulators and two gauges make it easy to meet your vacuum
and pressure requirements. The vacuum regulator and vacuum
dial gauge is attached to the intake port. The vacuum regulator
allows the vacuum level to be set between roughly atmospheric
pressure and the maximum vacuum allowed for the pump model.
A moisture trap keeps water from accidentally being drawn into
the unit.