Bard WA121 Installation Instructions Manual

Contents

Bard WA121 Installation Instructions Manual Manual pdf 6 page image

Manual 2100-234IPage 6 of 17SHIPPING DAMAGEUpon receipt of equipment, the carton should be checkedfor external signs of shipping damage. If damage isfound, the receiving party must contact the last carrierimmediately, preferably in writing, requesting inspectionby the carrier’s agent.GENERALThe equipment covered in this manual is to be installedby trained, experienced service and installationtechnicians.The refrigerant system is completely assembled andcharged. All internal wiring is complete.The unit is designed for use with or without duct work.Flanges are provided for attaching the supply and returnair ducts.These instructions explain the recommended method toinstall the air cooled self-contained unit and the electricalwiring connections to the unit.These instructions and any instructions packaged withany separate equipment required to make up the entire airconditioning system should be carefully read beforebeginning the installation. Note particularly “StartingProcedure” and any tags and/or labels attached to theequipment.While these instructions are intended as a generalrecommended guide, they do not supersede any nationaland/or local codes in any way. Authorities havingjurisdiction should be consulted before the installation ismade. See Page 3 for information on codes andstandards.Size of unit for a proposed installation should be basedon heat loss calculation made according to methods ofAir Conditioning Contractors of America (ACCA). Theair duct should be installed in accordance with theStandards of the National Fire Protection Association forthe Installation of Air Conditioning and VentilatingSystems of Other Than Residence Type, NFPA No. 90A,and Residence Type Warm Air Heating and AirConditioning Systems, NFPA No. 90B. Where localregulations are at a variance with instructions, installershould adhere to local codes.Maximum size of the time delay fuse or HACR type circuit breaker for protection of field wiring conductors.Based on 75° C copper wire. All wiring must conform to NEC and all local codes.These “Minimum Circuit Ampacity” values are to be used for sizing the field power conductors. Refer to theNational Electrical Code (latest revision), article 310 for power conductor sizing.CAUTION: When more than one field power conductor circuit is run through one conduit, the conductorsmust be derated. Pay special attention to note 8 of table 310 regarding Ampacity Adjustment Factors whenmore than 3 conductors are in a raceway.TABLE 2ELECTRICAL HEAT SPECIFICATIONSTIUCRICELGNISsledoMstloVdetaRdnaesahPdleiF.oNrewoPstiucriC3muminiMtiucriCyticapmA1 mumixaMesuFlanretxEtiucriCrorekaerB2rewoPdleiFeziSeriW2dnuorGeziSeriW00A-121AW30A50A1-802/0321118027251020341210141210100K-121AW20K 1-511 11715252030101010100G-121AW20G30G1-05-02211173102515102414121414121