
page 8 of 92
Contents
Safety information!........................................................... 10
Important information! ....................................................................... 10
General information........................................................................... 12
Intended use...................................................................................... 12
Setting up and installing the equipment ............................................ 13
Ambient conditions............................................................................ 16
Operating conditions ......................................................................... 16
Safety during operation ..................................................................... 18
Maintenance and repair..................................................................... 21
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Important information: Equipment marking (ATEX)................... 23
Technical data................................................................... 25
Gas inlet temperatures..................................................................... 27
Wetted parts..................................................................................... 28
Abbreviations.................................................................................... 29
Pump parts....................................................................................... 29
Replacing the device fuse (only MD 1C C/US) ................................ 35
Use and operation ............................................................ 36
Installation ........................................................................................ 36
Vacuum connection (inlet)................................................................ 36
Separator (AK) at the inlet................................................................ 38
Connecting the outlet ....................................................................... 38
Exhaust waste vapor condenser (EK) at the outlet .......................... 39
Electrical connection ........................................................................ 41
Controlling the MD 1C VARIO-SP.................................................... 43
During operation............................................................................... 48
Important notes regarding the use of gas ballast ............................. 50
In case of condensation ................................................................... 52
Shutdown & storage......................................................................... 53
Accessories ...................................................................... 54
Troubleshooting ............................................................... 56
Replacing diaphragms and valves.................................. 58
Checking diaphragms and valves .................................................... 61
Replacing the diaphragm ................................................................. 65
Replacing the valves and assembling the pump heads ................... 68
Assembling the connecting hose (MD 1C + AK + EK)...................... 72
Replacing the overpressure safety relief device .............................. 74
Spare parts MD 1C + AK + EK ......................................... 76