Through-Wall and Window Units

Verify unit meets physical size of through-wall or window opening

Verify electrical receptacle meets requirements of NFPA 70 (Article 440)

Select new unit that:

matches available voltage and does not exceed available amperage of existing circuit

is sized based on manufacturer specifications for the space conditioned

is ENERGY STAR^® qualified with Energy Saver Mode or better

does not use electric resistance heat as the primary heat source (i.e., select Heat Pump units)

Install unit per manufacturer specifications and in accord with applicable codes (e.g., no extension cord used)

Where applicable, unit controls and thermostat must comply with the operable parts provisions of ICC A117.1 when the dwelling unit is required to be accessible per ADA

Where required, maintain egress requirements in accordance with ANSI/NFPA 101 and local laws

Install unit according to manufacturer specifications so that it is stable, secure, and will not pose a risk to occupant safety

Before installing through-wall unit, seal all adjacent framing and provide a sealed and sleeved opening

After installation, seal the perimeter with suitable materials (e.g., ASTM C1193)

Permanently remove equipment from job site and recycle or dispose of removed equipment and refrigerant in accordance with local and federal law (e.g., EPA Section 608 of Clean Air Act of 1990)

Permanently decommission old equipment

Provide occupants/owners with user's manual, warranty information, installation instructions and installer contact information