OPERATING INSTRUCTIONS
27
Side channel blower
Version: 27222 - C
Schmalenberger GmbH + Co. KG
D-72072 Tübingen / Germany
6
Notices of incorrect operation
6.1
General information
Operation by means of a central control system ensures that incorrect operation is largely
excluded.
For manual operation, but also with system control, observe the following instructions:
•
Avoid damage to the side channel blower and make certain that:
•
The side channel blower always runs quietly and without vibration.
•
Extended operation against a closed shut-off element is avoided to prevent the
conveying medium from heating up. For minimum required delivery see section 5.1,
•
the maximum permissible room temperature of +40°C is not exceeded,
•
The ball bearing temperature does not 50°C above room temperature, or in
any case +90°C (measured on the outside of the motor housing). When the side
channel blower is in operation the shut-off element is not closed in the supply line.
6.1.1
Faults
When faults occur while the side channel blower is in operation that are not caused by the
control system or other external errors, follow these steps:
1. Pinpoint the fault or malfunction.
2. Determine the cause.
3. Eliminate the fault.
6.2
Shutdown
1. Close the shut-off elements in the pressure and suction lines. If a backflow prevention
valve is installed in the pressure line, the shut-off element can remain open provided
counter pressure is present.
2. Turn off the motor. Make certain run-out is quiet. Depending on the system, when the
heat source (if present) is turned off, the side channel blower should have sufficient
coast-down until the conveying medium temperature is reduced enough so that heat
backup in the side channel blower is avoided.
3. Close the shut-off element in the pressure line.
