INSTALLATION AND OPERATING MANUAL
1.0 INSTALLATION
1.1 General description
The EVDR vacuum pumps are able to run 24 hours a day and especially suited for harsh industrial
applications. They are supplied with self-lubricated long life graphite vanes to insure a long time
between service, combined with the easy accessible service of the pump, this results in a very short
service down time for the EVDR-series.
1.2
Unpacking and Storage
Inspect the box and pump carefully for any signs of damage incurred in transit. Since all pumps are
ordinarily shipped EXW from our factory or regional warehouse, such damage is the normal responsibility
of the carrier and should be reported to them.
The inlet of the pump is covered with plastic caps to prevent dirt and other foreign substances
from entering the pump. Leave the cap in place until you are ready to pipe the pump to your
equipment.
The pump should be stored in a dry environment with normal air humidity (RH 0~80%, -10°C to
45°C), not for more than 12 months.
1.3 Location
Install the pump in a horizontal position on a level surface so that the pump can be evenly supported
on its rubber feet. Leave 10 ~ 15 cm of access around the pump to allow proper cooling. Also,
adequate ventilation must be provided for the cooling of the pump and motor.
Ambient temperatures should not exceed 45°C.
1.4 Power Requirements
A schematic diagram for the electrical motor terminal connections is located in the junction box of
the motor or on the motor nameplate. Typical wirings for Three Phase Motors are as below:
Wiring Scheme- Three Phase Motor
Delta Connection
Low Voltage
L1
L2
L3
W2
U2
V2
U1
V1
W1
