Delivery
and
commissioning
18
DDE 1500
60000-52-03
5.3 Function check
Before the product is first used, a function check must be performed.
Operate the main switch on the main system to carry out a functional test of the
product.
5.3.1 Rotation direction monitoring
DANGER
Electric shock from high voltages
Any work on the electrical grid and on live components parts may only be
performed by an electrician.
When the direction of rotation is incorrect, the product becomes impermissibly hot,
the volume increases, the airflow volume falls, and the product’s suction
performance suffers. Damage to the product cannot be ruled out.
Afte
r first switching on the product, you should check that the fan rotor’s direction
of rotation is correct.
1. Switch on the product using the main switch on the connected system.
2. Check the direction of rotation of the fan impeller.
3. If the direction of rotation is incorrect, have phases L1 and L3 reversed by
an electrical technician.
4. Switch the connected main system on again.
5. The product is ready for operation.