EN | Operating manual  Identify and eliminate faults
48      WVM 45 -1450
Identify and eliminate faults
The following table provides information on what designatory abbreviations are to be used for 
the various components. These designations are also found in the technical documentation.
Abbreviation Component
AA Fittings, general
AK Butter y valve
AR Check valve
AU Cardan shaft
AV 4/2-way tap cock
BB Dummy plug/ ange
BF Sieve bottom/desiccant sieve/ ow distributor
BS Silencer
BT Dessicant
GS Limit position monitor
H Air heater
MT Moisture measurement/pressure dewpoint
PT Pressure measurement
PI Pressure gauge
TT Temperature measurement
TSH Delimiter thermostat
V Vacuum pump
Notes on error messages and errors
The error message from the dryer are displayed on the operating panel. The controller manual 
provides appropriate information. You are given information on the possible causes for the 
error and tips how to eliminate the error.
If the dryer is connected to a fault signalling system, all error messages are transmitted 
through the potential-free busbar connection to the operator’s control room.
Also heed the following notes when working at the electric system:
Electric current warning!
Work on the electrical system must only be carried out by qualifi ed technical 
personnel! The electrical panel in particular must be opened and serviced by an 
instructed trained electrician only.
Caution! 
Arbitrary changes to the factory settings of the control programme may result 
in damage to the dryer.