- 4 -1. ABOUT THESE UNITSWARNINGTO REDUCE THE RISK OF FIRE, ELECTRIC SHOCK, OR INJURY TOPERSON(S) OBSERVE THE FOLLOWING:1. This unit is intented for residential installation only.2. Installation must be done in accordance with all applicable codes andstandards, including fire-rated construction codes and standards.3. This unit is not designed to provide combustion and/or dilution air forfuel-burning appliances.4. Do not install in a cooking area or connect directly to an appliance.5. Before replacing filters, servicing or cleaning unit, disconnect the powercord from the electrical outlet.6. When cutting or drilling into the wall or ceiling, do not damage electrical wiringor other hidden utilities.7. Do not use this unit with any solid-state speed control device other thanwall controls ACCGSC1 or 40425, provided with the unit.8. This unit must be grounded. The power supply cord has a 3-prong groundingplug for your personal safety. It must be plugged into a mating 3-pronggrounding receptacle, grounded in accordance with the national electrical codeand local codes and ordinances. Do not remove the ground prong. Do notuse an extension cord.9. This unit must be installed in a weatherized location out of direct sunlightand protected from the elements.10. Use this unit only in the manner intended by the manufacturer. If youhave questions, contact the manufacturer at the address or telephone numberlisted in this document.11. When cleaning the unit, it is recommended to wear safety glasses and gloves.!CAUTION1. For general ventilating use only. Do not use to exhaust hazardous or explosivematerials and vapors.2. Intended for residential installation in accordance with the requirements ofNFPA 90B.3. For GSVH1K, GSHH3K and GSEH3K units only: Be sure to duct air outside.Do not intake / exhaust air into spaces within walls or ceiling or into attics,crawl spaces, or garage.4. Do not run any air ducts directly above or closer than 2 ft (0.61 m) to any furnaceor its supply plenum, boiler, or other heat producing appliance. If a duct hasto be connected to the furnace return plenum, it must be connected notcloser than 2 ft (0.61 m) from this plenum connection to the furnace.5. The ductwork is intended to be installed in compliance with all local andnational codes that are applicable.6. To avoid prematurate clogged filters, turn OFF the unit during constructionor renovation.7. At least once in a year, the unit mechanical and electronic parts should beinspected by qualified service personnel.8. Please read the unit specification label on the product for further informationand requirements.