Bard WG241 Installation Instructions Manual

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Bard WG241 Installation Instructions Manual Manual pdf 6 page image

Manual 2100-365Page 31. IMPORTANTThe equipment covered in this manual is to be installedby trained, experienced service and installationtechnicians. All duct work or portions thereof not inthe conditioned space should be properly insulated inorder to both conserve energy and preventcondensation or moisture damage.2. APPLICATIONThis is a fan-assisted forced air gas furnace withelectric air conditioning for outdoor installation. A fan-assisted furnace is equipped with an integralmechanical means to draw products of combustionthrough the combustion chamber and heat exchanger.The furnace installation must conform with localbuilding codes and ordinances or, in their absence,with the National Fuel Gas Code ANSI Z223.1 orCAN/CGA-B149.1, latest edition, and the NationalElectrical Code ANSI/NFPA-7 or CSA C22.1, latestedition. It is the personal responsibility and obligationof the purchaser to contact a qualified installer toassure that installation is adequate and is inconformance with governing codes and ordinances.3. DUCT WORKThe unit is designed for use with or without duct work.See Warning on Page 7. Flanges are provided forattaching the supply and return ducts. Theseinstructions explain the recommended method to installthe air cooled self-contained electric air conditioningand gas heating unit and the electrical wiringconnections and gas piping to the unit. The refrigerantsystem is completely assembled and charged. Allinternal wiring is complete.These instructions and any instructions packaged withany separate equipment required to make up the entireheating/cooling system should be carefully read beforebeginning the installation. Note particularly “StartingProcedure” and any tags and/or labels attached to theequipment.All duct work, supply and return, must be properlysized for the design air flow requirement of theequipment. Air Conditioning Contractors of America(ACCA) is an excellent guide to proper sizing.Refer to Table 9 for maximum static pressure availablefor duct design.AIR CONDITIONING MODULE OPTIONSSTD = Standard equipment.j CCM Compressor control module has adjustable 30 second to 5 minute delay-on-breaktimer. On initial power up, or any time the power is interrupted, the delay-on-makewill be 2 minutes plus 10% of the delay-on-break setting. There is no delay-on-make during routine operation of the unit. The module also provides the lockoutfeature (with 1 retry) for high and/or low pressure controls, and a 2 minute timedbypass for low pressure control.k HPC High pressure control is auto reset. Always used with compressor control module(CCM) which is included. See note j.l LPC Low pressure control is auto reset. Always used with compressor control module(CCM) which is included. See note j.m LAC Low ambient control permits cooling operation down to 0°F.1MCC2CPH3CPL4CALdellatsnIyrotcaFedoCdellatsnIdleiFtraPDTS DTS % G 61-AMCDTS DTS % % H 81-AMCDTS DTS % I 6-AMCCAUTIONDuring the initial firing of the burners there will probably be some amount of smoke issued to thecirculating air stream as the result of residual oil burning off of the heat exchanger tubes. This oilis required during the forming process of the stainless steel heat exchanger tubes to facilitate thebending. OSHA or the National Toxicology Program does not list the oil as a carcinogen. In vaporform this may be irretating to the eyes or could cause headaches. This is a one time occurrence,and ventilation of the space may be required depending upon the space being conditioned.