Heidolph ROTAVAC 20 - Manual (Page 7)

Documents are only to be used and distributed completely and unchanged. It is strictly the users´ responsibility to check carefully
the validity of this document with respect to his product. Manual-no.: 01-005-005-36-1
page 7 of 35 Translation of the original instructions
• Comply with maximum permissible pressures at inlet and outlet and pressure
differences between inlet and outlet, see section ”Technical data”. Do not operate
the pump with overpressure at the inlet.
• Avoid overpressure of more than 0.2 bar in case inert gas is connected to the
pump, the gas ballast or to a venting valve.
• Attention: Flexible elements tend to shrink when evacuated.
• Connect pipes gas tight at inlet and outlet of the pump.
• Check that mains voltage and current conform with the equipment (see rating
plate).
• Check that the voltage selection switch is set correctly. Unplug the equipment
before setting the voltage selection switch! Note: If the equipment is switched on
with wrong voltage selection, the equipment may be damaged!
• Ensure that the coolant outlet pipeline of the condenser (accessory) is always
free and that it cannot get blocked. Install an optional coolant valve always in the
supply line of the exhaust waste vapor condenser only.
Keep a distance of minimum 20 cm between fan and ambient parts (e.g. housing,
walls, ...). Check fan regularly for dust/dirt, clean if necessary to avoid a cutback of
ventilation.
The diameter of the inlet and outlet pipeline should be at least as large as the diam-
eter of the pump connection pipelines.
If the equipment is brought from cold environment into a room for operation, allow
the equipment to warm up for one day (pay attention to water condensation on cold
surfaces).
Secure coolant hoses at the hose nozzles (e.g. with hose clip) to prevent their ac-
cidental slipping.
Comply with all applicable and relevant safety requirements (regulations and guide-
lines), implement the required actions and adopt suitable safety measures.
1.4 Ambient conditions
+ Pay attention to the permissible maximum ambient and gas inlet tempera-
tures (see ”Technical data”).
• Adopt suitable measures in case of differences, e. g. using the equipment out-
doors, installation in altitudes of more than 1000 m above mean sea level, con-
ductive pollution or bedewing.
To the best of our knowledge the equipment is in compliance with the requirements
of the applicable EC-directives and harmonized standards (see ”Declaration of con-
formity”) with regard to design, type and model. Directive IEC 1010 gives in detail
conditions under which the equipment can be operated safely (see also IP degree
of protection). NOTICE
NOTICE