Armstrong 4039 Series Руководство по установке и эксплуатации - Страница 2

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STORAGE
Pumps not immediately placed into service, or removed from service and stored, must be properly prepared to
prevent excessive rusting. Pump port protection plates must not be removed until the pump is ready to connect to
the piping. Rotate the shaft periodically (At least monthly) to keep rotating element free and bearings fully functional.
For long-term storage, the pump must be placed in a vertical position in a dry environment. Internal rusting can be
prevented by removing the plugs at the top and bottom of the casing and drain or air blow out all water to prevent
rust buildup or the possibility of freezing. Be sure to reinstall the plugs when the unit is made operational. Rust
proofing or packing the casing with moisture absorbing material and covering the flanges is acceptable. When
returning to service be sure to remove the drying agent from the pump.
UNCRATING
Armstrong End Suction pumps are thoroughly inspected before shipment to assure they meet with your order
requirements. After removing the pump from the crate, make sure the equipment is in good order and that all
components are received as called for on the packing list. Any shortages or damage should be reported
immediately. Use extreme care in handling the unit, placing slings and hooks carefully so that stress will not be
imposed on the pump. NEVER PLACE CABLE SLINGS AROUND THE PUMP SHAFT. The eye bolts or lifting lugs
on the motor are intended for lifting only the motor and not the complete unit.
HANDLING
Use slings as shown in the diagram to lift the set. Do not use the motor eyebolts to lift the pump set. See the
delivery note for the weight of the set.
LIMITATIONS
See pump nameplate for speed, duty and maximum pressure/temperature limitations. These limits must not, under
any circumstances, be exceeded without prior consultation with Armstrong.
IMPORTANT:
Do not run the pump for any length of time under very low flow conditions or with the discharge valve closed.
To do so could cause the water in the casing to reach super heated steam conditions and will cause premature
failure and could cause serious and dramatic damage to the pump and surrounding area.
INSTALLATION
1.
LOCATION
In open systems, locate the unit as close as practical to the liquid being pumped, with a short, direct suction
pipe. Ensure adequate space is left above and around the unit for operation, maintenance, service and
inspection of parts.
In closed systems, where possible, the pumps should be installed immediately downstream of the expansion
tank/make-up connection. This is the point of zero pressure change and is necessary for effective pump
operation. Do not install more than one expansion tank connection into any closed hydronic system.
Electric motor driven pumps should not be located in damp or dusty location without special protection.
Airflow into the motor and/or motor fan should not be obstructed.
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