T9901008-1-1 UK (v9)
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19.1 Every week
Turn off the air curtain to prevent entry of dust then clean the face of the air inlet grilles and air filters
inside the grilles using a vacuum cleaner with an extension tube and brush.
19.2 Every 3 months
Clean and inspect the inside of the air curtain as follows:
Step 1
Remove plastic end caps at each end of the unit by pulling off to the side.
Step 2
Use a Pozi No.1 screwdriver to remove air inlet grilles by releasing the fasteners at the
bottom corners of each air inlet grille. See Fig 5, Section 8.1.1.
Step 3
Clean and remove any build-up of dust and dirt within the air-curtain (inlet/outlet grilles,
electric heaters, fan impellers, housings and motors) using a vacuum cleaner and soft
brush.
Step 4
Check within the unit to ensure all electrical connections and crimped terminals are tight
and that all cables are in good condition.
Refit air inlet grilles after servicing. Reconnect electrical supply and test to ensure correct operation
(see Section 16: Commissioning).
19. SERVICE & MAINTENANCE
NOTE:
Weekly maintenance can be carried out by the Cleaner or Janitor from floor level.
NOTE:
Build-up of dirt on fan impellers can cause vibration, noise and excessive wear on the
motor bearings.
WARNING:
Before servicing, isolate and disconnect the air curtain from the electrical power.
WARNING:
The following servicing and maintenance must be carried out by a competent
electrician or a Thermoscreens appointed technician.
WARNING:
Failure to adequately maintain the unit and provide a suitable cleaning schedule will
result in a loss of performance and reduced life expectancy of the air-curtain and
possible overheating and fire risk with electric heated units.
