Manual 2100-674APage 4 of 41Sizing of systems for proposed installation should bebased on heat loss and heat gain calculations madeaccording to methods of Air Conditioning Contractors ofAmerica (ACCA). The supply flange should be installedin accordance with the Standards of the NationalFire Protection Association for the Installation of AirConditioning and Ventilating Systems of Other ThanResidence Type, NFPA No. 90A, and Residence TypeWarm Air Heating and Air Conditioning Systems, NFPANo. 90B. Where local regulations are at a variance withinstructions, installer should adhere to local codes.Shipping DamageUpon receipt of equipment, the cartons should bechecked for external signs of shipping damage. Ifdamage is found, the receiving party must contactthe last carrier immediately, preferably in writing,requesting inspection by the carrier’s agent.These units must remain in upright position at alltimes.Additional PublicationsThese publications can help when installing thefurnace. They can usually be found at the local libraryor purchased directly from the publisher. Be sure toconsult the current edition of each standard.National Electrical Code ......................ANSI/NFPA 70Standard for the Installation of Air Conditioningand Ventilating Systems ...................ANSI/NFPA 90AStandard for Warm Air Heatingand Air Conditioning Systems ............ANSI/NFPA 90BLoad Calculation for Residential Winterand Summer Air Conditioning ............. ACCA Manual JFor more information, contact these publishers:Air Conditioning Contractors of America (ACCA)1712 New Hampshire Ave. N.W.Washington, DC 20009Telephone: (202) 483-9370 Fax: (202) 234-4721American National Standards Institute (ANSI)11 West Street, 13th FloorNew York, NY 10036Telephone: (212) 642-4900 Fax: (212) 302-1286American Society of Heating, Refrigeration and AirConditioning Engineers, Inc. (ASHRAE)1791 Tullie Circle, N.E.Atlanta, GA 30329-2305Telephone: (404) 636-8400 Fax: (404) 321-5478National Fire Protection Association (NFPA)Batterymarch ParkP. O. Box 9101Quincy, MA 02269-9901Telephone: (800) 344-3555 Fax: (617) 984-7057ANSI Z535.5 Definitions:DANGER: Indicate[s] a hazardous situation which, ifnot avoided, will result in death or serious injury. Thesignal word “DANGER” is to be limited to the mostextreme situations. DANGER [signs] should not be usedfor property damage hazards unless personal injury riskappropriate to these levels is also involved.WARNING: Indicate[s] a hazardous situation which,if not avoided, could result in death or serious injury.WARNING [signs] should not be used for propertydamage hazards unless personal injury risk appropriateto this level is also involved.CAUTION: Indicate[s] a hazardous situation which, ifnot avoided, could result in minor or moderate injury.CAUTION [signs] without a safety alert symbol may beused to alert against unsafe practices that can result inproperty damage only.NOTICE: [this header is] preferred to address practicesnot related to personal injury. The safety alert symbolshall not be used with this signal word. As analternative to “NOTICE” the word “CAUTION” withoutthe safety alert symbol may be used to indicate amessage not related to personal injury.