The air conditioner installation in attic, attic hvac install can be done. A few things must first be considered though.
The air conditioning unit will be installed essentially the same, although, with some minor differences. The units are suspended from the floor joists in most cases when installed in a crawl space. Attic installations allow the unit to be installed on the ceiling rafters. Most closet or garage units are positioned vertically.
The Freon lines and electrical connections to the condenser of course are the same. The air vents will be quite easily installed in the ceilings from the attic. Most attic units will require some type of shock absorber like heavy rubber pads for the unit to rest on. A garage or closet installation would not require vibration control. This is to prevent vibration from shaking the ceilings. Many experts recommend attaching turnbuckles that are supported from the roof joists, as well.
Danger In Installing Air Conditioner In Attic
Water leakage from the condenser is a concern. Many building codes require a secondary drip pan, or overflow system for attic installations. The overflow system is in tandem with the condenser drainpipe. Most codes require this where water leaking would cause damage to the structure. The drainpipe must be installed where draining water will not interfere with any public walkways.
The drain cannot be attached to the home plumbing system. Closet or garage installations are run inconspicuously through a wall to the outside. The drainpipe must also slope to allow gravity to work. Codes do not require a secondary drip pan on units installed in a closet or garage.
Both drain systems for the unit must drain independently of each other. The overflow pan should have a drainpipe attached unless the homeowner plans to check daily or there is an audible water level alarm attached. The unit must be positioned so water drains by gravity. The air conditioning installation in attic, attic hvac install is not very different.