General maintenance
Safe operation of the device requires the components listed
below to be checked and cleaned after 12 months at the
latest or after every 4000 operating hours as well as all
damaged components to be replaced. Furthermore, an electrical
safety test must be conducted.
Component
Differential pressure switch
Gear motor
Solid-state relay SSR
Power relay
Emergency stop main switch
Regeneration heating
Safety temperature limiter
Temperature probe
Temperature monitor
Thermal switch NO 60 °C
Time relay
Air filter
Filter fan
Radial seals, desiccant wheel
Control cabinet
Desiccant wheel
Door seals
Circumferential seals, desiccant wheel
Regeneration air fan
Dry air fan
Toothed belt
Screw terminal connections
Toothed belt pulley
Care
Do not use a cleaning agents containing solvents to avoid
damage to the surfaces and operating elements of the devices.
Clean the surfaces and operating elements of the devices with a
damp cloth and solvent-free cleaning agents only.
EN
If the device is used in rough surroundings with an increased
dust exposure, we recommend performing a visual inspection
during every air filter change.
Activity
Comments
Function test
Switching point
Function test
Function test
Disconnection
Function test
Disconnection
Function test
Disconnection of all phases
Function test
Measure currents, clean surface if necessary
Function test
Switching point, clean capillary tube
Function test
Check signals, clean probe
Function test
Switching point, clean capillary tube
Function test
Switching point
Function test
Time setting
Visual inspection Check condition, replace if necessary
Visual inspection Filter change, clean impeller
Visual inspection Check condition, replace if necessary
Visual inspection Clean, blow out dust if necessary
Visual inspection Obstructions, check surfaces for damage, replace if
necessary
Visual inspection Check condition, replace if necessary
Visual inspection Check condition, replace if necessary
Visual inspection Clean impeller, check speed adjustment, measure
currents
Visual inspection Clean impeller, check speed adjustment, measure
currents
Visual inspection Check tension and condition, replace if necessary
Fit
Retighten if necessary
Fit
Check connection to gear shaft
desiccant dehumidifier TTR 2000 / TTR 2800 / TTR 3700
Replacement /
interval
As required if
defective
4,000 h
As required
As required
As required
As required
As required
As required
As required
As required
As required
Filter indication
As required
As required
As required
As required
As required
As required
4,000 h
4,000 h
As required
As required
As required
20