installation &
operating instructions
Design Envelope
4300
&
4380
Vertical In-line Pumping Unit
4
1.0 mechanical setup
This document contains specific information regarding the
safe installation, operating and maintenance of the Armstrong
Design Envelope pumps should be read and understood by
installing, operating and maintenance personnel. The equip-
ment supplied has been designed and constructed to be safe
and without risk to health and safety when properly installed,
operated and maintained. The instructions following must be
strictly adhered to. 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 un-
less this document has been studied and understood.
Handling, transportation and installation 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 tem-
perature limitations. The limits stated must not be exceeded
without written permission from Armstrong.
1.1.2 ambient temperature
Install the Design Envelope unit with adequate access
for routine maintenance. Adequate space, particularly
at the fan inlet
2"
(
50
mm), is necessary 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.
To avoid the inverter unit getting overheated, the
ambient temperature is not to exceed
104°f (40°c)
average daily temperature. Operating in higher
ambient temperatures will require derating of the inverter.
Where under normal operating conditions the limit of
68°c/
155°f
(Restricted Zone) for normal touch, or
80°c/176°f
(Unrestricted Zone) for unintentional touch, may be experi-
enced, steps should be taken to minimize contact or warn oper-
ators/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 withstand-
ing pump insulation techniques appropriate measures must
be taken to minimize risk for operating personnel. The ambi-
ent temperature for standard motors must be no greater than
40°c/104°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 environ-
ment, then a higher enclosure rating may be required (contact
Armstrong).
1.1.4 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 (longer than three months), 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 mate-
rial and covering the flanges is acceptable. When returning to
service be sure to remove the drying agent from the pump.
1.1.5 uncrating
Armstrong Design Envelope
4300
&
4380
Vertical In-Line
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 im-
mediately. Use extreme care in handling the unit, placing slings
and hooks carefully so that stress will not be imposed on the
integrated controls, pump or motor. Never place cable slings
around the pump shaft or integrated controls. The hoist rings
should be used to lift the complete pump assembly.
1.1.6 handling design envelope 4300 & 4380
units
To handle Design Envelope
4300
&
4380
units when received
on site, secure the pallet following uncovering the unit, then
hook straps as detailed below and in
Fig
1.1.6
, and carefully lift
the pumping unit. Connect the lifting straps around the lifting
rings on each side of the integrated motor. The pumping unit
Summary of Contents for Design Envelope 4300
Page 2: ......
