Intended Use
WARNING
In case of foreseeable misuse outside the intended use of the machine.
Risk of injuries!
Risk of damage to the machine!
Risk of damage to the environment!
- Make sure to follow all instructions described in this manual.
The machine is intended for the suction of air and other dry, non-aggressive, non-toxic and non-explosive gases.
Conveying of other media leads to an increased thermal and/or mechanical load on the machine and is permissible only after a consultation with Busch.
The machine is intended for the placement in a non-potentially explosive environment.
The machine is designed for indoor installations. For outdoor installations, consult your Busch representative for special precautions.
The machine is not capable of maintaining ultimate pressure.
- The minimum allowed ultimate pressure is to be read from the nameplate of the machine.
- By means of process control and/or vacuum relief valves it must be made sure that the minimum allowed ultimate pressure will not be underrun.
The machine is suitable for continuous operation up to a certain suction pressure indicated below:
Machine type | Suction pressure limitation for continuous operation |
|---|---|
MM 1202 AV | 200 hPa (mbar) abs. |
MM 1252 AV | |
MM 1322 AV | |
MM 1324 AV | 60 hPa (mbar) abs. = ultimate pressure |
The operating time of the following machine is limited to 20 minutes at ultimate pressure:
Machine type | Suction pressure |
|---|---|
MM 1202 AV | 100 hPa (mbar) abs. = ultimate pressure |
MM 1252 AV | |
MM 1322 AV | 150 hPa (mbar) abs. = ultimate pressure |
Cooling time: After operation at ultimate pressure, the machine must cool down by operating between range of 200 to 1013 hPa (mbar) for atleast same amount of time as at ultimate pressure. For example : 20 min operation at ultimate pressure = 20 minutes of cool down time. | |
Note: The non-return valve (NRV) shouldn't be used as a non-return or shut off valve for the System. The non-return valve is only to protect the pump.
If the machine needs to be maintained after shutdown:
- Provide an additional manual or automatic operated non-return valve in the suction line.
Permitted environmental conditions, see Technical Data.