What is the normal size of the access door?

The access door is also called the inspection hole and the inspection port. It is the maintenance operation entrance reserved for various pipelines, structural parts, equipment, etc. hidden behind the decoration finish surface. It is required not only to be as close to the equipment as possible for easy maintenance, but also to be concealed and beautiful.

There is no special regulation on the size of the access door, which can be handled flexibly according to the actual situation to facilitate maintenance.

1. If it is the inspection port of a specific equipment, the equipment needs to enter and exit from this port, and the inspection port should be 200mm wider than each side of the equipment outline.
2. The inspection port that needs to pass through is 600mm * 600mm, which is a little wider than the shoulder width of ordinary people.
3. There is no need to pass through the man's inspection port, 400mm * 400mm is enough, some very shallow inspection ports for easy observation, even 300mm * 300mm size is also possible.
4. The ceiling of the central air conditioner is generally suspended between 250mm-300mm. It is more appropriate to leave 300mm * 500m for the inspection opening.
5. Different air conditioners have different ceiling heights, less than 200mm is enough, and more may reach 600mm.
For the ceiling hanging height is relatively large, the inspection opening must be able to pass through the size of the person.