NVE 4307 - Limitations on Use

12 | 4307 & 4310 Blower
Limitations on Use
Limitaon on Use Reason for Limitaon and/
or Risk
Correcve Acons
Operaon of the blower in an
explosive environment
Fire and/or explosion can
result
DO NOT USE
Using blower to move explo-
sive, toxic or dangerous gases
Fire and/or explosion can
result
Polluon of the environment
Health risks to operators
Liquid drawn into blower
intake
Blower seizure, damage to
blower and ejecon of parts
Install a moisture trap or
cyclonic separator on the
intake nozzle of the blower.
Operaon with the exhaust
or ballast blocked o.
Overheang Remove the blockage and
minimize restricon in the
exhaust or ballast circuits
Rotang blower in wrong
direcon
Damage to blower Change the direcon of ro-
taon of the drive or order
correct rotaon of blower.
Operang in excess of recom-
mended speed
Seizure of blower, damage to
blower and ejecon of parts
Operate the blower within
recommended speed range
Operang blower below
minimum speed
Seizure of blower, damage to
blower and ejecon of parts
Exceeding the maximum
pressure rise from blower
inlet to outlet
Overheat of Blower
Fire
Seizure of blower, damage to
blower and ejecon of parts
Check inlet and exhaust
restricons and reduce as
necessary.
Operang at excessively hot
inlet or ballast temperatures
Overheang
Fire
Seizure of Blower, damage to
blower and ejecon of parts
Monitor the inlet tempera-
ture and make correcons
to the system to bring tem-
perature within limits.
Operang at excessively cold
inlet temperatures.
Seizure of Blower, damage to
blower and ejecon of parts
Review precauons in cold
weather condions. Use
recommended lubricaon.
Operang above the exhaust
temperature upper limit
Overheang
Fire
Seizure of Blower, damage to
blower and ejecon of parts
Reduce the vacuum level in
high ambient condions.
Reduce the blower speed.
Remove restricons in the
intake and exhaust circuits.
Operang in excess of the
specied temperature rise
across the blower
Seizure of Blower, damage to
blower and ejecon of parts
Reduce the vacuum or pres-
sure level to bring within
limits.
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