Delivery and
commissioning
20
DDE 2000 // DDE 300
0973008-52-03
5.3 Function check
Before the product is first used, a functional check must be performed.
Actuate the main switch of the main system for the functional check.
5.3.1 Rotation direction monitoring
DANGER
Electric shock from high voltages
Any work on the electrical grid and on voltage-conducting parts may only
be performed by an electrical specialist.
When the direction of rotation is incorrect, the product bmes inadmissably hot, the
volume increases, the airflow volume falls, and the product’s suction performance
suffers as a result. Damage to the product cannot be ruled out.
After first switching on the product for the first time, you should check that the fan
rotor’s direction of rotation is correct.
1. Switch on the product via the main switch of the connected system.
2. Check the clockwise field of rotation of the product.
3. In the event of incorrect direction of rotation get an electrician to switch
phases.
4. Switch the connected main system back on.
5. The product is ready for operation.
