Installation
45GA02411_002_C0 - 10/2016 - © Leybold
Check the direction of rotation of the motor
During operation with an open intake flange there is the risk of suffering
injury by rotating parts. For this reason do not check the direction of rota-
tion with an open intake flange but instead vent the intake line through cor-
respondingly switched valves.
With the fan housing open, there is the risk of suffering injury due to hot
surfaces. Moreover, sufficient cooling of the pump is not ensured any more.
Except when checking the direction of rotation the pump must never be
operated with its fan housing open.
Allowing the pump to run backwards with a closed intake line will immedi-
ately damage the pump. Letting the pump run backwards for over three
seconds will damage the pump regardless of the conditions.
As a rule, the pumps are supplied turning in the clockwise direction on the
load side, with the direction of rotation being anticlockwise for the ventilation
side
For the power connecting lines from the side of the customer a clockwise
rotating field needs to be ensured. Please check this with a direction of rota-
tion measuring instrument.
The direction of rotation should be checked with two persons.
Vent in the intake line through correspondingly switched valves. Open the fan
housing.
Let the pump run up briefly (for approximately 1 second) and then immedi-
ately switch it off again.
Observe the direction of rotation of the running down fan. The correct direc-
tion of rotation is indicated by an arrow in the junction box.
In the case of a wrong connection, rewire.
Close the housing again.
CAUTION
NOTICE
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