Diaphragm Vacuum Pump N 828 / N 838
Technical Data
Translation of original Operating and Installation Instructions, English, KNF 121249-121517 09/19
11
WARNING
Automatic starting can cause personal injury and
pump damage
When the operation of the pump is interrupted by the
thermal switch, the pump will restart automatically af-
ter cooling down.
Take all necessary care to prevent this leading
to a dangerous situation.
For UN 828 KNDC-B, UN 828 KN.29DC-B, UN 838 KNDC-B,
UN 838 KN.29DC-B, UN 838.1.2 KNDC-B,
UN 838.1.2 KN.29 DC-B:
The pump is protected against overheating by a temperature
sensor on the motor board and equipped with overcurrent pro-
tection.
If one of these safety functions is triggered or if the maximum
blocking time of the rotor is exceeded due to a fault, the pump
will be shut down and must be manually reset, as follows:
Separate pump from the mains.
Remove the cause(s) of the fault before restarting.
Weight
Pump type
Weight (kg / lbs)
UN 828 AN_ / UN 828 KN_
2.2 / 4.8
UN 838 ANI / UN 838 KNI
2.6 / 5.7
UN 838.1.2 KNI
4.4 / 9.7
UN 838 ANDC / UN 838 KNDC
2.4 / 5.9
UN 828 KNDC-B /
UN 828 KN.29DC-B
2.0 / 4.4
UN 838 KNDC-B /
UN 838 KN.29DC-B
2.5 / 5.5
UN 838.1.2 KNDC-B /
UN 838.1.2 KN.29DC-B
3.0 / 6.6
Tab. 10