16
Frequency converter
□
□
Sinus filter
□
□
Shielded cables
□
□
Motor protection
Yes
No
Motor protection switch or motor protection relay
□
□
PTC resistor
□
□
Resistance value [Ω]:
Thermal contact
□
□
Electrical motor protection
□
□
Others:
Functional check
Yes
No
Impeller easily rotatable (by hand)
□
□
Rotation direction acc. to directional arrow
□
□
Smooth running without unusual noise/
vibrations
□
□
Nominal data - Fan (name plate on fan housing)
Voltage [V]:
Current [A]:
Frequency [Hz]:
Power [kW]:
Fan impeller speed [rpm]:
Measured data at commissioning
Voltage [V]:
Temp. of transported air [°C]:
Current L1 [A]*:
Fan impeller speed [rpm]:
Current L2 [A]:
“Air volume”, “Differential pressure” not necessary for
Jet fans
Air volume [m3/s]:
Current L3 [A]:
Differential pressure [Pa]*:
*For single-phase fans, fill in line “Current L1 [A]”
*Δ- Pressure between suction-side and discharge of the fan
If an air flow measurement is not possible, this value can be calculated using the following formula:
X
=
Duct cross-section [m²]
Flow speed [m/s]
Grille measurement acc. to VDI 2044
Air volume [m³/s]:
Yes
No
Commissioning of the fan successful?
□
□
Date, installer's signature
Date, operator's signature
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