Clarity WN-5040-720 manual Changing the Air Filter, When should I change the air filter?

6.2 Changing the Air Filter

Clean, cool air is essential for proper Margay operation.

When should I change the air filter?

When it gets dirty, change it.

Unfortunately, there is no absolute rule about when to change an air filter. For some installations the environment has clean, dust-free air, such as a corporate lobby. The air filter may be good for a year or more.

In other environments—airports, subway termi- nals—the air full of dust and dirt all the time. The air filter might have to be changed every month.

Of course, it also depends on how many hours per day or per week the lamp is on.

How to determine a changing schedule. Remove and inspect the air filter after three

months of operation. Make a note of the air filter’s condition. Then check it again after six months of operation.

These two inspections will give you some idea of how often the filter needs changing. If it doesn’t need changing after six months, inspect again in a year. As long as the environment doesn’t change, you can build an appropriate schedule in this way.

If new construction occurs in the vicinty of the Clarity displays, watch out. New construction usually means DUST.

Removing the air filter from the front

1.From the front, open the screen. (See 2.6.2 “Opening or Removing a Screen” on page 34.)

2.Open the electronics module door. Turn off the AC power switch and remove the power cord.

3.Loosen the light shield screw. Lift and latch the light shield in its up position.

4. Lift out the air filter, tilting it forward as you lift.

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