Omega Products PHP-400 Installation Manual
PHP-400 SERIES
Chemical Metering Pumps
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OMEGA
READ ALL CAUTIONS CAREFULLY
BEFORE INSTALLING PUMP
Operator’s Manual
OMEGA”)
Technologies
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Company
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Servicing USA and Canada: Call OMEGA Toll Free
OMEGA Engineering, Inc.
One Omega Drive, Box 4047
Stamford, CT 06907-0047 U.S.A.
Headquarters: (203) 359-1660
Sales: I-800-826-6342
Customer Service: I-800-622-2378
Engineering: I-800-872-9436
FAX: (203) 359-7700 TELEX: 996404 EASYLINK: 62968934 CABLE OMEGA
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359-RUSH
TABLE OF CONTENTS
SAFETY INSTRUCTIONS .............................................................................................................................
INTRODUCTION
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UNPACKING THE PUMP ..............................................................................................................................
PRECAUTIONS FOR OPERATION
INSTALLATION, PIPING AND WIRING
START-UP AND OPERATION
MAINTENANCE
TROUBLESHOOTING
SPECIFICATIONS
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EXPLODED VIEW DRAWING
SAFETY INSTRUCTIONS
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When using chemical feed pumps, basic safety precau-
tions should always be followed to reduce risk of fire,
electric shock, and personal injury. Failure to follow
these instructions could result in death or serious injury.
READ ALL INSTRUCTIONS
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GENERAL SAFETY CONSIDERATIONS
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Always wear protective clothing including gloves and safety glasses when working on or near chemical
metering pumps.
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Inspect tubing regularly when replenishing chemical solution for cracking or deterioration and replace as
necessary. Always wear protective clothing and safety glasses when inspecting tubing.
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When pump is exposed to direct sunlight use U.V. resistant tubing.
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Follow directions and warnings provided with the chemicals from the chemical manufacturer. Customer is
responsible for determining chemical compatibility with chemical feed pump.
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Secure chemicals and metering pumps making them inaccessible to children and pets.
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Make sure voltage on chemical metering pump matches the voltage at the installation.
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Do not cut plug off electrical cord or the ground lug
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Pump is NOT to be used to handle flammable liauids.
consult a licensed electrician for proper installation.
SAFETY OPERATING PROCEDURES
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All pumps are tested with water before shipment. Remove head and dry thoroughly if you are pumping chemical
that will react with water (i.e. sulfuric acid). Valve seats, ball checks, gaskets and diaphragm should also be dried.
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Finger tighten connections on pump head. DO NOT USE WRENCH. Teflon tape is only necessary when pump
is equipped with NPT connections.
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Before repair or moving pump, disconnect power cord or turn off power to pump. De-pressurize system and
drain chemical. (Always wear protective clothing and safety glasses when working on metering pump.)
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Always consult licensed plumber and electrician before installation and make sure to conform to local codes.
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Consult with local health officials and qualified water conditioning specialist when treating potable water.
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Be sure to de-pressurize system prior to hook-up or disconnection of metering pump.
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If point of injection is lower than chemical tank and pump, install an anti-siphon valve.
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DO NOT MODIFY pump, poses potentially dangerous situation and voids
war=y.
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For accurate volume output, pump must be calibrated under all operating
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conditons.
INTRODUCTION
These installation, operation and maintenance instructions cover your electronic metering pump. Refer to the
pump nameplate to determine the actual model.
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PRINCIPLE OF OPERATION
Diaphragm metering pumps are used to dispense chemicals or fluids. This is achieved by an electromag-
netic drive mechanism (solenoid) which is connected to a diaphragm. When the solenoid is pulsed by the
control circuit, it displaces the diaphragm which, through the use of check valves, moves the fluid out the
discharge under pressure. When the solenoid is deenergized it returns the diaphragm and pulls more fluid
into the pump head and the cycle repeats.
The pump stroke rate is controlled by the internal circuit and is changed by turning the rate knob. The
mechanical stroke length of the pump is controlled by the stroke length knob.
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MATERIALS OF CONSTRUCTION
The wetted materials (those parts that contact the solution being pumped) available for construction are
polypropylene, 316 Stainless Steel, and PVDF. These materials are very resistant to most chemicals.
However, there are some chemicals, such as strong acids or organic solvents, which cause deterioration
of some elastomer and plastic parts, such as diaphragm, valve seat, or head. Consult Chemical Resistance
Guide or OMEGA for information on chemical compatibility.
Various manufacturers of plastics, elastomers and pumping equipment publish guidelines that aid in the
selection of wetted materials for pumping commercially available chemicals. Two factors must always be
considered when using an elastomer or plastic part to pump chemicals. They are:
1.
The temperature of service: Higher temperatures increase the effect of chemicals on wetted materials.
The increase varies with the material and the chemical being used. A material quite stable at room
temperature might be affected at higher temperatures.
2.
Material choice: Materials with similar properties may differ greatly from one another in performance
when exposed to certain chemicals.
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UNPACKING THE PUMP
Remove the Packing List and verify that you have received all equipment. If you have any
about the shipment, please call the OMEGA Customer Service Department at l-800-622-2378 or (203)
359-1660. Inspect the container and equipment for any signs of damage. Note any evidence of rough
handling in transit. Immediately report any damage to the shipping agent.
questions
NOTE:
unless all shipping material is saved for their
examination. After examining and removing
contents, save packing material and carton
in the event reshipment is necessary.
The carton should contain: (See Figure A)
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Metering Pump
I-
Clear Flexible Suction Tubing
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Stiff White Discharge Tubing
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Foot Valve/Strainer Assy.
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Back Pressure Injection Valve Assy.
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One Instruction Book that you are
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Bleed Valve Assembly (most models)
*
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The carrier will not honor any claims
now reading
NOT SUPPLIED WITH
AISI-316SS PUMPS.
Make sure that all items have been
removed from the shipping carton
before it is discarded.
Figure A
PRECAUTIONS FOR OPERATION
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Each Electronic Metering Pump has been tested to meet prescribed specifications and safety standards. Proper
care in handling, installation and operation will help in ensuring a trouble free installation
Please read all these cautionary notes prior to installation and start-up of your metering pump.
Important: Pump must be installed and used with supplied back pressure/injection valve.
1.
Failure to do so could result in excessive pump output
Handle the pump with care. Dropping or heavy impact may cause not only external damage to the
2.
pump, but also to electrical parts inside.
Install the pump in a place where the ambient temperature does not exceed 40°C (104°F) and relative
3.
humidity below 90%. The pump is water resistant and dust proof by construction and can be
do
outdoors,
do not operate in direct sunlight.
Install the pump in a place convenient for its future maintenance and inspection, then fix it to prevent
4.
vibration. Rubber pads are provided for table top operation,
Protective caps must be removed prior to installing tubing onto valve assemblies. Use tubing of
5.
specified size. Connect the tubing to the suction side securely to prevent the entrance of outside air.
Make sure that there is no liquid leakage on the discharge side.
however
not operate the pump submerged.
flow.
To avoid high internal pump temperatures,
.
used
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6. Be careful to check that the voltage of the installation matches the voltage indicated on the pump
nameplate. Each pump is equipped with a three-prong plug. Always be sure the pump is grounded.
To disconnect, do not pull wire but grip the plug with fingers and pull out. Do not use the receptacle in
common with heavy electrical equipment which generates surge voltage. It can cause the failure of the
electronic circuit inside the pump.
7. Tampering with electrical devices can be potentially hazardous. Always place chemicals and pump
installation well out of the reach of children.
8. Never repair or move the metering pump while operating. Always disconnect electrical power.
For
safety, always wear protective clothing (protective gloves and safety glasses) when working
on or near chemical metering pumps.
9.
An air bleed valve is available for all models with tubing connection. Air purges should be performed
when the pump chamber contains no fluid at the time of start-up. As a safety measure, connect the
return tubing to the air bleed valve and bypass fluid back to storage tank or a suitable drain.
10. Chemicals used may be dangerous and should be used carefully and according to warnings on the
label. Follow the directions given with each type of chemical. Do not assume chemicals are the same
because they look alike. Always store chemicals in a safe location away from children. OMEGA cannot
be responsible for the misuse of chemicals being fed by the pump. Always have the material safety data
sheet (MSDS) available for any fluid being pumped.
11. All pumps are pretested with water before shipment. Remove head and dry thoroughly if you are
pumping a material that will react with water, (i.e. sulfuric acid). Valve seats, ball checks, gaskets, and
diaphragm should also be dried. Before placing pump into service, extreme care should be taken to
follow this procedure.
12.
Valve cartridges are stamped to indicate fluid flow direction. Always install so that markings read from
top to bottom.
13. When metering hazardous material DO NOT use plastic tubing. Strictly use proper rigid pipe. Consult
OMEGA for special adaptors or valve assemblies.
14. Pump is NOT to be used to handle or meter flammable liquids or materials.
15. Standard white discharge tubing is not recommended for installations exposed to direct sunlight.
Consult OMEGA for special black tubing.
16.
Factory will not be held responsible for improper installation of pump, or plumbing. All cautions are to
be read thoroughly prior to hook-up and plumbing. For all installations a professional plumber should
be consulted. Always adhere to local plumbing codes and requirements.
17. When using pump with pressurized systems, make sure the pressure of the system does not exceed
the maximum pressure rating on the pump nameplate. Be sure to de-pressurize system prior to hook-
up or disconnecting the metering pump.
18.
Electronic power modules are equipped with automatic reset thermal overload devices and may reset
unexpectedly.
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