In addition to making the unit hard to get to for service high attic heat can trigger the high pressure limit switch turning your condenser off.
Access to attic for electric ac service.
Attic furnace installation must comply with you local mechanical code or imc international mechanical code if such was adopted in your area.
But we need to know the type of wire and the type of access to the attic scuttle hole stairs to provide a complete answer.
To reset the switch you ll need to climb up into.
Raul no this is not a standard practice and is most likely the result of improper installation of electrical attic wiring.
The following are attic furnace installation requirements based on 2009 irc and 2009 imc the codes refer to it as appliances in attics.
This opening must provide clear access of at least 20 by 30.
Most updated central air conditioned homes have a new air conditioner split system meaning the ac is broken up into parts.
If you will need to fish wiring through a wall drill a hole through the wood plate in the attic only.
I took it to be the cable romex was going to be exposed.
Ed beal jul 19 17 at 19 08.
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When cutting through drywall from the interior of a room use a utility knife and cut carefully you don t want to drill through a hidden wire or the paper backing of the attic insulation.
Attic hvac systems save space.
I think some folks are thinking you mean knob and tube wiring since you said exposed.
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Well mainly it s a way to save space.
Kinda leaning more towards emt to get the shielding and protection since it s not to far from the ac handler and other electrical.
Methods of proper attic electrical wiring.
If i cut the conduit to about 4 5 i should be able to feed it down from the attic in pieces and then couple it after it s all in place so i don t have to make the holes too big to accommodate the couplings.
Attics containing mechanical equipment such as an air conditioner require an access opening regardless of the size of the attic itself.
So why put an hvac system up in the attic at all.
An outdoor unit which houses the fan condenser and compressor and an indoor unit which holds the evaporator and fan.
Attic furnace passageway and service area electrical requirement.