LEYBOLD ECODRY plus 25, Operating Instructions Manual

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2 General description
2.1 Overview
WARNING: INCORRECT USE OF EQUIPMENT
Risk of injury or damage to the equipment. Incorrect use of the equipment can cause
damage to the equipment or injury to people. The user is responsible for the safe
operation, installation and monitoring of the system.
The ECODRY plus product family is a range of dry, multi-stage roots vacuum
pumps that offers high pumping speed in a compact form. The pump is
connected by a power cord and is designed for use on clean duty
applications.
The cord ratings are:
Supply voltage (V)
Current (A) Frequency (Hz)
100
‑
127 14
50 or 60
200
‑
240 7
The pump is not designed for use with flammable, corrosive, toxic, or other
hazardous gases. Gas or oxygen can mix in the pump.
The dry pumping system can be used in either transient or steady state gas
load conditions. The pump can sustain continuous operation with a
maximum power consumption of 850 W. When the load is more than 850 W
motor power the speed temporarily reduces.When high load passes the
motor speed is increased, or when the transient overload protection has
recovered. Refer to
Table: Performance data for information on maximum
inlet pressure.
Refer to Figure: General view , the system is supplied with an DN 25 ISO-KF
inlet port (1) and an DN 25 ISO-KF exhaust port (10).
The pump mechanism is operated by an electric motor driven by an internal
pump controller. The rotational elements of the pumping mechanism are
simply supported at the end by lubricated bearings. PFPE lubricant is used
and this is contained in both the gearbox and motor ends of the pump
module, these are "sealed for life" and the lubricant does not need to be
replaced until the pump service interval is reached.
The system is air cooled by a fan installed internally in the pump enclosure.
The pump has a thermal protection device that will stop the motor if a
thermal overload occurs, for example due to high ambient temperature. If
the thermal protection is triggered, you must restart the pump after it has
cooled down.
The pump is designed to pump the residual gases used in high vacuum
systems. The gases are:
▪ Air
▪ Nitrogen
▪ Krypton
▪ Argon
▪ Helium
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300902516_002 - 10/2020 - © Leybold
General description