HVAC condenser clearances

[cfolsom]

Hi,

I'm looking for the minimum clear area around a A/C condenser. For instance, between the condenser and house.

Thanks most kindly,
Corey

[Lawrence G. Harrington, Jr.]

2 ft

[David P. Valley]

Two feet is typical.

Typical outside air-cooled A/C compressors require a minimal clearance around the unit to provide adequate air flow so that the condenser coils will be cooled efficiently.

Air conditioning compressor/condenser units mounted too close to a wall, surrounded by shrubs, or multiple units located too closely together may not receive enough cool air flow to function properly. The result can be a shorter compressor life (expensive) and/or less efficient cooling operation (higher operation costs).

I don't make a big deal if the unit is closer than two feet at the building side.

[David A. Andersen]

Except when the service panel is against the house as well.

Then it is an electrical access issue.

[Gary T. Heller]

Depends on the manufacturer. Carrier has units that only require 12".

[cbottger]

There were considerations that I was taught as a pup when choosing a proper location. If at all possible do not install on the west or south side of a structure: Do not install under the drip line of the roof as guttering may not always be present during the life of the structure and the overhanging soffits can create a recirulatory effect on condensers that have a upward discharge of the condenser fan. For structures that have no soffits simply apply the common sense rule.

[David P. Valley]

Originally Posted by gheller

Depends on the manufacturer. Carrier has units that only require 12".

I guess with varying clearance requirements per manufacturer, you'd have to use common sense in most installations.

If you see an issue with the installation of a condenser, simply write it up. It don't hurt writing up existing issues as you see them.

[Jeffrey R. Pope]

Originally Posted by gheller

Depends on the manufacturer.

That is the correct response. There are also "zero-clearance" units - units that can have one side against a wall.