The 2012 international residential code requires an attic access opening for attics with an area greater than 30 square feet and a vertical height in excess of 30 inches.
Attic air handler dimensions.
Horizontal flow air handlers can be configured in left to right or right to left configurations upon installation.
I hope you have found this article on what size central air conditioner to buy for your house somewhat helpful.
The rough framed opening.
Ac unit size calculator accurately estimates the size of the central air conditioner unit you should install in your house.
The important part of this attic installation is that the air handler has plenty of drains and a safety cutoff to ensure that the air handler turns off before the secondary drain pan overflows into the attic.
Final thoughts on what size central air conditioner to buy.
Ac calculator uses your house size square feet climate zone efficiency and equipment type standard central air vs central heat pump to show you exactly what size central air unit you need.
An outdoor unit which houses the fan condenser and compressor and an indoor unit which holds the evaporator and fan.
Attic hvac systems save space.
As you get closer to buying don t hesitate to use our central air conditioner size calculator.
30 inches high 762 mm 22 inches wide 559 mm 20 feet max length 6096 mm measured along the center line between the attic access opening and the attic furnace.
Get the cost of 1 ton 2 ton 4 ton and 5 ton ac unit.
For more answers to questions like this visit the asm air conditioning blog.
Attic furnace passageway minimum dimensions requirements.
Most updated central air conditioned homes have a new air conditioner split system meaning the ac is broken up into parts.