Precautions - LMI Excel XR Série Guide De Démarrage Rapide

1.0 Precautions

The following precautions should be taken when working with LMI metering pumps.
Please read this section carefully prior to installation. Consult the installation and
operation manual for additional precautions.
Protective Clothing
ALWAYS wear protective clothing, face shield, safety glasses and gloves when working on or
near your metering pump. Additional precautions should be taken depending on the solution
being pumped. Refer to Safety Data Sheet (SDS) precautions from your solution supplier.
Water Pre-Prime
All LMI pumps are pre-primed with water when shipped from the factory. If your solution is not
compatible with water, disassemble the Pump Head Assembly. Thoroughly dry the pump head,
valves, O-rings, balls and diaphragm. Reassemble head assembly tightening screws in a
crisscross pattern. Refill the pump head with the solution to be pumped before priming the
pump. (This will aid in priming.)
Liquid Compatibility
CAUTION: The evaluation performed by ETL was tested with water only. The pumps are
certified to NSF 61 with: sodium hypochlorite (12.5%), sulfuric acid (98.5%), sodium hydroxide
(50%), and hydrochloric acid (30%). Determine if the materials of construction included in the
liquid handling portion of your pump are adequate for the solution (chemical) to be pumped.
Always refer to the solution supplier and the LMI Chemical Resistance Chart for compatibility of
your specific LMI metering pump. Contact your local LMI distributor for further information.
Plumbing
Always adhere to your local plumbing codes and requirements. Be sure installation does not
constitute a cross connection. Check local plumbing codes for guidelines. LMI is not
responsible for improper installations.
Over Pressure Protection
To ensure safe operation of the pump it is recommended that some type of safety / pressure-
relief valve be installed to protect the piping and other system components from failing due to
excessive pressure.
Electrical Connections
WARNING: To reduce the risk of electrical shock, the metering pump must be plugged into a
properly grounded grounding-type receptacle with ratings conforming to the data on the pump
control panel. The pump must be connected to a good ground. Do not use adapters! All wiring
must conform to local electrical codes. If the supply cord is damaged, it must be replaced by
the manufacturer, stocking distributor, or authorized repair center in order to avoid a hazard.
Retightening Components
Plastic materials will typically exhibit creep characteristics when under pressure over a period
of time and to insure a proper fit it may be necessary to retighten the head bolts periodically. To
insure proper operation, we recommend tightening the bolts to 25 inch-pounds after the first
week of operation and on a monthly basis thereafter.
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PRECAUTIONS