Carrier 58CVA Installation, Start-up, Operating And Service And Maintenance Instructions

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Carrier 58CVA Installation, Start-up, Operating And Service And Maintenance Instructions Manual pdf 12 page image

3. Remove bottom closure panel.4. Reinstall bottom filler panel and screws.SIDE RETURN AIR INLETThese furnaces are shipped with bottom closure panel installed inbottom return-air opening. This panel MUST be in place whenonly one side return air is used.Not all horizontal furnaces are approved for side return airconnections (See Fig. 20.)Step 4—Filter ArrangementNever operate a furnace without a filter or with filter accessdoor removed. Failure to follow this warning could result infire, personal injury, or death.There are no provisions for an internal filter rack in these furnaces.An external filter rack is required.This furnace is shipped with a factory-supplied Media FilterCabinet. The Media Filter Cabinet uses either a factory-suppliedstandard 1-inch filter or 4-inch wide Media Filter which can bepurchased separately.Refer to the instructions supplied with Media Cabinet for assemblyand installation options.Step 5—Air DuctsGENERAL REQUIREMENTSThe duct system should be designed and sized according toaccepted national standards such as those published by: AirConditioning Contractors Association (ACCA), Sheet Metal andAir Conditioning Contractors National Association (SMACNA) orAmerican Society of Heating, Refrigerating and Air ConditioningEngineers (ASHRAE) or consult The Air Systems Design Guide-lines reference tables available from your local distributor. Theduct system should be sized to handle the required system designCFM at the design external static pressure.When a furnace is installed so that the supply ducts carry air toareas outside the space containing the furnace, the return air mustalso be handled by a duct(s) sealed to the furnace casing andterminating outside the space containing the furnace.Secure ductwork with proper fasteners for type of ductwork used.Seal supply- and return-duct connections to furnace with codeapproved tape or duct sealer.Installation tip: Flexible connections should be used betweenductwork and furnace to prevent transmission of vibration.Ductwork passing through unconditioned space should be insu-lated to enhance system performance. When air conditioning isused, a vapor barrier is recommended.Table 3—Opening Dimensions (In.)FURNACECASINGWIDTHAPPLICATION PLENUM OPENING FLOOR OPENINGA B C D14–3/16Upflow Applications on Combustible or NoncombustibleFlooring (KGASB subbase not required) 12-11/16 21-5/8 13-5/16 22-1/4Downflow Applications on Noncombustible Flooring(KGASB subbase not required) 12-9/16 19 13-3/16 19-5/8Downflow applications on combustible flooring (KGASBsubbase required) 11-13/16 19 13-7/16 20-5/8Downflow Applications on Combustible Flooring with CD5 orCK5 Coil Assembly or KCAKC coil box (KGASB subbasenot required)12-5/16 19 13-5/16 2017–1/2Upflow Applications on Combustible or NoncombustibleFlooring (KGASB subbase not required) 16 21-5/8 16-5/8 22-1/4Downflow Applications on Noncombustible Flooring(KGASB subbase not required) 15-7/8 19 16-1/2 19-5/8Downflow applications on combustible flooring (KGASBsubbase required) 15-1/8 19 16-3/4 20-5/8Downflow Applications on Combustible Flooring with CD5 orCK5 Coil Assembly or KCAKC coil box (KGASB subbasenot required)15-1/2 19 16-1/2 2021Upflow Applications on Combustible or NoncombustibleFlooring (KGASB subbase not required) 19-1/2 21-5/8 20-1/8 22-1/4Downflow Applications on Noncombustible Flooring(KGASB subbase not required) 19-3/8 19 20 19-5/8Downflow applications on combustible flooring (KGASBsubbase required) 18-5/8 19 20-1/4 20-5/8Downflow Applications on Combustible Flooring with CD5 orCK5 Coil Assembly or KCAKC coil box (KGASB subbasenot required)19 19 20 2024-1/2Upflow Applications on Combustible or NoncombustibleFlooring (KGASB subbase not required) 23 21-1/8 23-5/8 22-1/4Downflow Applications on Noncombustible Flooring(KGASB subbase not required) 22-7/8 19 23-1/2 19-5/8Downflow applications on Combustible flooring (KGASBsubbase required) 22-1/8 19 23-3/4 20-5/8Downflow Applications on Combustible Flooring with CD5 orCK5 Coil Assembly or KCAKC coil box (KGASB subbasenot required)22-1/2 19 23-1/2 2011→→