4
1.0 introduction
This document contains specific information regarding the
safe installation, operating and maintenance of the Armstrong
Design Envelope pumps and should be read and understood by
installing, operating and maintenance personnel. The equipment
supplied has been designed and constructed to be safe and
without risk to health and safety when properly installed, oper-
ated 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 instructions for safe use
No installation of this equipment should take place
unless this document has been studied and under-
stood. Handling, transportation and installation of this
equipment should only undertaken by trained personnel with
proper use of lifting equipment. See later diagrams for lifting ad-
vice. Refer to the pump nameplate for pump speed, pressure and
temperature limitations. The limits stated must not be exceeded
without written permission from Armstrong.
1.2 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.
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 opera-
tors/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 tem-
peratures 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 40°c/104°f.
1.3 noise levels
Typical Pumping Unit Sound Pressure Level, Decibels, A-Weighted, at 1 m (3 ft.) from unit.
1500 rpm 3000 rpm
frame
designation
fcm tefc fcm tefc
kW db-a kW db-a kW db-a kW db-a
80 0.55-0.75 55 0.55-0.75 47 0.55-0.75 55 0.55-1.1 58
90 1.1-1.5 60 1.1-1.5 49 1.1-1.5 60 1.5-2.2 62
100 2.2 59 2.2 53 2.2 59
100 3 62 3 53 3 62 3 64
112 4 64 4 54 4 63 4 66
132 5.5-7.5 62 5.5-7.5 60 5.5-7.5 62 5.5-7.5 69
160 11-15 63 11-18.5 74
180 18.5-22 65 22 75
200 30 65 30-37 78
225 37-45 66 45 78
250 55 67 55 81
280 75-90 70 75-90 81
315 110-132 78 110-132 82
315 160-200 83 160-200 86
355 250-315 85 250-315 89
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