installation &
operating instructions
Design Envelope 4300 & 4380 Vertical
In-line pumping unit with ivs drive
4
1.0 introduction
This manual contains specific information regarding the
safe installation, operation and maintenance of Armstrong
Design Envelope pumps. Read this manual carefully before
installing or using the product. If clarification is needed on
any point please contact Armstrong quoting the equipment
serial number.
1.1 precautions
1.1.1 instructions for safe use
No installation of this equipment should take place
unless this document has been studied and
understood. Handling, transportation and installa-
tion of this equipment should only undertaken by trained
personnel with proper use of lifting equipment. See later
diagrams for lifting advice. Refer to the pump nameplate for
pump speed, pressure and temperature limitations. The
limits stated must not be exceeded without written permis-
sion from Armstrong.
1.1.2 temperature
Install the Design Envelope unit with adequate
access for routine maintenance. A minimum of 2"
(50 mm) clearance is required at the fan inlet to
facilitate airflow. Where several Design Envelope units are
installed in close proximity, care must be taken to ensure that
there is no re-circulation of exhausted warm air.
Under normal operating conditions the pump surface
temperature may reach 68°c/ 155°f (Restricted Zone) to
80°c/176°f (Unrestricted Zone). Steps should be taken
to minimize contact or warn operators/users that normal
operating conditions will be exceeded. In certain cases where
the temperature of the pumped liquid exceeds the above
stated temperature levels, pump casing temperatures may
exceed 100°c/212°f and not withstanding pump insulation
techniques appropriate measures must be taken to minimize
risk for operating personnel. The ambient temperature for
standard motors must be no greater than 45°c/ 113°f.
1.1.3 enclosure rating
The standard enclosure rating for Design Envelope
4300 and Design Envelope 4380 integrated
controls is ul Type 12 / ipp55. If the pump is to be
installed in a wet or dusty environment, then a higher
enclosure rating may be required (contact Armstrong).
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