What is trap door in HVAC?

An innovative solution. Function. To conceal the Fan Control Unit (FCU), which is a part of air conditioning system.

What is a trap door used for?

A trapdoor is a door set into a floor or ceiling which opens up or down to allow access between different levels of a house. These doors are often used to gain access to a cellar or attic in homes, and are very rarely used nowadays to disguise actual traps…

What is trap door in ceiling?

What is a ceiling trap door? A trapdoor, or trap door as per Wikipedia, is a sliding or hinged door, flush with the surface of a floor, roof, or ceiling, or in the stage of a theater. A hatch, an opening which may also be in a wall and need not be flush with the surface, is similar.

What is another name for a trap door?

What is another word for trapdoor?

Why is it called a trap door?

Originally, trapdoors were sack traps in mills, and allowed the sacks to pass up through the mill while naturally falling back to a closed position. On ships, hatches are usually not flush, and never called trapdoors—provide access to the deck.

What are grid ceilings?

A grid ceiling is a false ceiling in the sense that it is not part of a permanent support structure such as floor joists or a cement floor/ceiling. Grid ceilings are sometimes called T-bar ceilings because “T-bars” form the grid that holds the ceiling panels in place.

What is meant by trapdoor?

: a lifting or sliding door covering an opening (as in a roof, ceiling, or floor)

What’s another word for door?

In this page you can discover 49 synonyms, antonyms, idiomatic expressions, and related words for door, like: gate, hatchway, portal, panel, hatch, threshold, jamb, doorway, postern, sill and casing.

Are trap doors Real?

The trapdoor is a sliding or hinged door in the floor or ceiling. It is traditionally small in size. It was invented to facilitate the hoisting of grain up through mills, however, its list of uses has grown over time.