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-
operation with
mixed system
(suction vacuum and simultaneous delivery backpressure);
-
conveying gases with
specific gravity
and/or temperature different from the reference data (1.2 kg/m
3
and 20°C)
-
variation in
rotation speed
with respect to the reference value.
The ambient
temperature
, and the conveyed gas intake temperature, is
permissible inside the range -15°C (+5°F) ÷ +40°C (+104°F) with the
following provisions;
•
for ambient temperature
+30°C
(+86°F)
reduce
the maximum
pressure differentials given in the "SPECIFICATIONS” by 5%;
•
for ambient temperature
+40°C
(+104°F)
reduce
the
maximum pressure differentials given in the
"SPECIFICATIONS” by 10%.
The graph to be used to reduce the maximum pressure differentials in
case of ambient temperature b21°C and +40°C (+70°F and
+104°F) is given opposite
In case of suction in the environment, and if on a system, protect the suction pipe with a suitable
Atex filter
with maximum filtration
25
μm and check compliance with the maximum pressure/vacuum data given in the SPECIFICATIONS (max ∆P):
•
for use as a
blower
deduct the pressure loss (P
a
) from the maximum compression indicated (max ∆P ), i.e. P
working
≈ max ∆P -
P
a
(for T
ambient
=20°C and P
ambient
=1013 mbar)
•
for use as an
exhauster
make sure the maximum vacuum at the inlet port is not exceeded.
10.4
PROHIBITIONS
THE FOLLOWING IS PROHIBITED:
-
Using the unit in installations for unforeseen use.
-
Using the unit in places whose ATEX classification does not comply with Annex II of Directive 1999/92/EC.
-
The suction and conveying of aggressive, corrosive and/or noxious fluids.
-
Using the unit in conditions different from the values given in the "SPECIFICATIONS" and RATING DATA;
-
Operation with inlet and/or outlet port closed.
-
Using the unit without having installed the suction filter.
-
Using the unit without having installed and properly connected the required sensors and/or regulators to the system.
-
Making conversions or changes to the unit, maintenance or repair work on own initiative or not envisaged in the manual.
Maintenance work can be carried out only in compliance with that described in this user manual, exclusively by qualified
personnel.
IT IS COMPULSORY TO:
- Check and comply with the intended use of the machine.
- Check and comply with the conditions of use specified in this manual.
- Comply with the installation conditions specified in this manual.
- Carry out the preliminary checks as specified in the section "STARTUP".
- Carry out maintenance as specified in section 6.
10.5
REASONABLY FORESEEABLE IMPROPER USE
Listed below are some examples of improper use identified by risk analysis and practical experience, according to the conditions they
can create.
The maximum altitude foreseen for installation of the machines is 1000m a.s.l.
Installations above the maximum level are possible only after contacting FPZ After-Sales Service for instructions regarding the
necessary technical procedures.
Non-compliance with the unit’s intended use can cause serious accidents.
Failure to comply with the prohibitions/obligations can result in technical faults, damage to the system or accidents. Danger of
serious injury!
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ENERGOEKONOM spol. s r.o., Wolkerova 433, CZ-250 82 Úvaly, Czech Republic, Tel.: +420 281 981 055, [email protected], www.energoekonom.cz
