Bryant 120 Air Delivery CFM With Filter, Speed External Static Pressure IN. WC Size Inlet

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312A

Table 5 – Air Delivery - CFM (With Filter)*

	FURNACE	RETURN---AIR	SPEED			EXTERNAL STATIC PRESSURE (IN. WC)
	SIZE	INLET		0.1	0.2	0.3	0.4	0.5	0.6	0.7	0.8	0.9	1.0

			High	1120	1075	1020	960	895	815	720	605	455	340
	045--- 08 /	Bottom or	Med---
				930	890	850	805	750	680	600	500	345	195
			High
	024045	Side(s)		820	785	750	700	650	585	505	400	235	--- ---
			Med--- Low
				725	690	655	605	555	495	405	305	--- ---	--- ---
			Low

			High	1465	1400	1325	1250	1175	1085	980	860	725	560
			Med---
	045--- 12 /	Bottom or		1295	1260	1210	1155	1090	1015	930	830	700	545
			High Me-
				1150	1120	1085	1040	985	920	835	740	620	510
	036045	Side(s)	dium
				1030	1010	980	945	895	835	765	685	570	345
			Med--- Low
				860	835	810	780	745	700	635	555	445	260
			Low

			High	1140	1105	1055	1010	955	885	815	715	545	390
	070--- 081 /	Bottom or	Med---
				915	885	855	825	785	725	655	530	420	280
			High
	024070	Side(s)		795	770	740	700	655	600	510	420	325	--- ---
			Med--- Low
				690	665	630	590	550	475	415	340	245	--- ---
			Low

			High	1440	1400	1355	1300	1240	1170	1090	1000	890	745
			Med---
	070--- 12 /	Bottom or		1180	1165	1150	1125	1085	1030	970	890	785	645
			High Me-
				1015	1020	1010	990	965	925	875	800	700	560
	036070	Side(s)	dium
				885	885	880	865	845	815	770	700	605	475
			Med--- Low
				695	700	700	690	670	640	600	540	460	345
			Low

			High	1840	1790	1730	1670	1605	1530	1450	1370	1275	1170
			Med---
	070--- 16 /	Bottom or		1610	1575	1535	1485	1435	1370	1305	1230	1145	1055
			High Me-
				1460	1430	1400	1360	1315	1260	1205	1130	1055	965
	048070	Side(s)	dium
				1260	1240	1215	1180	1145	110	1040	985	915	835
			Med--- Low
				1065	1040	1015	985	955	915	875	825	765	695
			Low

			High	1650	1600	1535	1465	1385	1285	1175	1055	895	645
	090--- 14 /	Bottom or	Med---
				1515	1485	1440	1380	1300	1220	1115	990	830	600
			High
	042090	Side(s)		1385	1360	1320	1260	1195	1120	1025	915	710	565
			Med--- Low
				1205	1180	1160	1120	1065	1005	925	810	630	510
			Low

			High	2060	2000	1930	1835	1755	1620	1490	1315	1115	910
	090--- 16 /	Bottom or	Med---	1710	1695	1665	1585	1480	1390	1245	1110	955	775
			High	1470	1475	1450	1390	1335	1230	1120	1005	855	690
	048090	Side(s)
			Med--- Low	1260	1365	1245	1225	1165	1090	995	880	750	600

			Low	1030	1025	1020	990	940	890	810	720	615	500

			High	2380	2295	2205	2105	2005	1900	1775	1650	1510	1335
			Med---
				2185	2115	2045	1960	1875	1770	1655	1535	1400	1240
			High Me-
		Bottom Only		1905	1865	1815	1740	1670	1590	1490	1390	1245	1110
			dium
				1595	1565	1530	1485	1430	1355	1275	1160	1055	920
			Med--- Low
				1340	1310	1280	1225	1170	1120	1040	955	850	750
			Low

			High	2485	2415	2330	2230	2135	2030	1920	1790	1645	1485
			Med---
		Both Side or 1		2175	2130	2070	2000	1930	1840	1740	1620	1495	1345
	090--- 20 /		High Me-
				1845	1815	1770	1720	1655	1580	1500	1395	1270	1090
	060090	Side & Bottom	dium
				1540	1515	1475	1435	1385	1335	1270	1175	1045	915
			Med--- Low
				1280	1250	1220	1190	115	1105	1035	945	845	745
			Low

			High	2420	2345	2265	2165	2070	1960	1850	1720	1570	1420
			Med---
				2160	2110	2045	1960	1885	1790	1695	1570	1445	1305
			High Me-
		1Side Only		1850	1815	1765	1710	1635	1560	1480	1380	1250	1110
			dium
				1530	1490	1455	1420	1375	1320	1250	1160	1055	905
			Med--- Low
				1290	1250	1220	1190	115	1110	1040	950	835	740
			Low

			High	1625	1575	1515	1445	1355	1260	1165	990	785	595
	110--- 12 /	Bottom or	Med---
				1510	1470	1415	1355	1285	1185	1070	890	725	530
			High
	036110	Side(s)		1360	1335	1295	1250	1180	1100	985	810	670	475
			Med--- Low
				1195	1180	1155	1115	1065	980	860	740	605	410
			Low

			High	2055	1990	1910	1815	1695	1575	1425	1230	1090	910
			Med---
	110--- 16 /	Bottom or		1750	1725	1670	1605	1515	1400	1255	1120	975	785
			High Me-
				1545	1525	1490	1445	1355	1260	1135	1020	880	750
	048110	Side(s)	dium
				1300	1290	1275	1235	1165	1085	1005	895	750	620
			Med--- Low
				1050	1045	1015	975	935	880	815	715	610	515
			Low

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Contents Ama Furnace Reliability Hazard Safety ConsiderationsCUT Hazard Dimensions IntroductionWidth Bottom Flue Cabinet SizeInstallation Electrostatic Discharge ESD Precautions Procedure Codes and StandardsGeneral LocationCarbon Monoxide Poisoning and Unit Damage Hazard FIRE, Injury or Death Hazard Fire HazardProperty Damage Hazard Location Relative to Cooling EquipmentAIR for Combustion Ventilation Furnace Corrosion HazardCarbon Monoxide Poisoning Hazard Outdoor Combustion Air MethodAir for Combustion, Ventilation and Dilution for Outdoors Installation Upflow InstallationDownflow Installation Horizontal InstallationFIRE, EXPLOSION, and Carbon Monoxide Poisoning Hazard Suspended Furnace SupportFloor and Plenum Opening Dimensions Roll-Out ProtectionFurnace Plenum Opening Floor Opening Casing Opening dimensionsWidth Horizontal Unit Suspension Filter Arrangement Carbon Monoxide Poisoning Hazard AIR DuctsGeneral Requirements Ductwork Acoustical Treatment Supply Air ConnectionsAir Delivery CFM With Filter Speed External Static Pressure IN. WC Size Inlet2380 2285 2200 2085 1970 1835 Air Delivery CFM With Filter* Downflow FurnacesReturn Air Connections GAS Piping Fire or Explosion HazardUpflow Return Air Configurations and Restrictions Maximum Capacity of Pipe Furnace Damage HazardWiring Electrical Connections Electrical Shock and Fire HazardElectrical Shock Hazard Furnace MAY not Operate HazardBOX Relocation Electrical DataElectrical Connection to J-BOX Power Cord Installation in Furnace J-BOX BX. Cable Installation in Furnace J-BOXElectrical Box on Furnace Casing Side. See Fig Fire or Electrical Shock HazardTwo-Stage Furnace with Two-Speed Air Conditioner See notes 2, 11, and 12 on the page following these figures Accessories VentingGeneral Venting Requirements Masonry Chimney RequirementsChimney Inspection Chart Appliance Application Requirements Vent Height Internal Area of ChimneyUpflow Application-Vent Elbow Up Downflow Application-Vent Elbow Up Horizontal Right Application Vent Elbow Right Furnace Vent Orienta Orientation Tion PUTBTUH/HR Diameter Height FTRounded End of Knockout Burn HazardSTART-UP, ADJUSTMENT, and Safety Check Start-Up ProceduresGeneral Fire and Explosion HazardAdjustments Stage Furnace Setup Switch DescriptionU.S Altitude Derate Multiplier for U.S.ARedundant Automatic Gas Control Valve Furnace Overheating Hazard Gas Rate cu ft/hrSeconds Size of Test Dial For Revolution Speed Selection Color Speed AS ShippedStage Furnace Blower OFF delay Setup Switch Check Safety ControlsDesired Heating Mode Setup Switch Blower OFF Delay SEC Checklist Altitude Range Specific Gravity of Natural GASBTUH/CU Gravity6001 to BTUH/CU FT Specific Gravity of Natural GAS Altitude RangeSpecific Gravity of Natural GAS Altitude Range Heat Value Service and Maintenance Procedures Electrical SHOCK, Fire or Explosion HazardFIRE, Personal Injury and Unit Damage Specific Gravity of Natural GAS Heat Value AT AltitudeCare and Maintenance Electrical Controls and Wiring Electrical Shock HazardIntroduction Unit Operation HazardService Wiring Diagram Cleaning AND/OR Replacing AIR Filter Filter size informationBlower Motor and Wheel Electrical Shock Hazard Furnace Filter Size CasingCleaning Heat Exchanger Unit Damage HazardSequence of Operation Igniter Position Top ViewTwo-Stage Heating Adaptive mode with Single-Stage Thermostat Thermidistat Mode Single-Stage Thermostat and Two-Speed Cooling Adaptive ModeSingle-Speed Cooling Troubleshooting Wiring DiagramsContinuous Blower Mode Troubleshooting Guide 2-Speed Blocked vent shutoff switch used in Chimney Adapter Kit Page Catalog No. II312A---45---8

120 specifications

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