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Bryant 340MAV instruction manual Ð37Ð

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		→ TABLE 8ÐMODEL 340MAV ORIFICE SIZE AND MANIFOLD PRESSURE FOR CORRECT INPUT														Continued
				FOR USE WITH 040 THROUGH 120 SIZE FURNACES ONLY
	(TABULATED DATA BASED ON 20,000 BTUH PER BURNER, DERATED 2% FOR EACH 1000 FT ABOVE SEA LEVEL)

	ALTITUDE		AVG GAS						SPECIFIC GRAVITY OF NATURAL GAS
	ALTITUDE		HEAT VALUE		0.58			0.60			0.62			0.64			0.66
		RANGE	HEAT VALUE		0.58			0.60			0.62			0.64			0.66
		(FT)	AT ALTITUDE	Orifice		Manifold	Orifice		Manifold	Orifice		Manifold	Orifice		Manifold	Orifice		Manifold
		(FT)	(BTU/CU FT)	Orifice		Manifold	Orifice		Manifold	Orifice		Manifold	Orifice		Manifold	Orifice		Manifold
			(BTU/CU FT)	No.		Pressure	No.		Pressure	No.		Pressure	No.		Pressure	No.		Pressure
			625	43		3.8	42		3.3	42		3.4	42		3.5	42		3.6
			650	43		3.5	43		3.7	43		3.8	42		3.2	42		3.3
Only			675	44		3.8	43		3.4	43		3.5	43		3.6	43		3.7
Only		7001	700	44		3.5	44		3.6	44		3.8	43		3.4	43		3.5
		7001	700	44		3.5	44		3.6	44		3.8	43		3.4	43		3.5
U.S.A.			725	44		3.3	44		3.4	44		3.5	44		3.6	44		3.7
U.S.A.		to	775	45		3.5	45		3.6	45		3.7	45		3.8	44		3.3
		to	750	45		3.7	45		3.8	44		3.3	44		3.4	44		3.5

		8000	800	45		3.3	45		3.4	45		3.5	45		3.6	45		3.7
			825	45		3.1	45		3.2	45		3.3	45		3.4	45		3.5
			850	45		2.9	45		3.0	45		3.1	45		3.2	45		3.3

	ALTITUDE		AVG GAS						SPECIFIC GRAVITY OF NATURAL GAS
	ALTITUDE		HEAT VALUE		0.58			0.60			0.62			0.64			0.66
		RANGE	HEAT VALUE		0.58			0.60			0.62			0.64			0.66
		(FT)	AT ALTITUDE	Orifice		Manifold	Orifice		Manifold	Orifice		Manifold	Orifice		Manifold	Orifice		Manifold
		(FT)	(BTU/CU FT)	Orifice		Manifold	Orifice		Manifold	Orifice		Manifold	Orifice		Manifold	Orifice		Manifold
			(BTU/CU FT)	No.		Pressure	No.		Pressure	No.		Pressure	No.		Pressure	No.		Pressure
			600	43		3.8	42		3.3	42		3.4	42		3.5	42		3.6
			625	43		3.5	43		3.6	43		3.8	42		3.2	42		3.3
Only		8001	650	44		3.7	43		3.4	43		3.5	43		3.6	43		3.7
Only			675	44		3.5	44		3.6	44		3.7	44		3.8	43		3.4
			675	44		3.5	44		3.6	44		3.7	44		3.8	43		3.4
U.S.A.		to	700	44		3.2	44		3.3	44		3.4	44		3.6	44		3.7
U.S.A.			725	45		3.6	45		3.8	44		3.2	44		3.3	44		3.4
			725	45		3.6	45		3.8	44		3.2	44		3.3	44		3.4
		9000	750	45		3.4	45		3.5	45		3.6	45		3.8	44		3.2
			775	45		3.2	45		3.3	45		3.4	45		3.5	45		3.6
			800	45		3.0	45		3.1	45		3.2	45		3.3	45		3.4

	ALTITUDE		AVG GAS						SPECIFIC GRAVITY OF NATURAL GAS
	ALTITUDE		HEAT VALUE		0.58			0.60			0.62			0.64			0.66
		RANGE	HEAT VALUE		0.58			0.60			0.62			0.64			0.66
		(FT)	AT ALTITUDE	Orifice		Manifold	Orifice		Manifold	Orifice		Manifold	Orifice		Manifold	Orifice		Manifold
		(FT)	(BTU/CU FT)	Orifice		Manifold	Orifice		Manifold	Orifice		Manifold	Orifice		Manifold	Orifice		Manifold
			(BTU/CU FT)	No.		Pressure	No.		Pressure	No.		Pressure	No.		Pressure	No.		Pressure
			575	43		3.8	42		3.2	42		3.3	42		3.5	42		3.6
			600	43		3.5	43		3.6	43		3.7	42		3.2	42		3.3
Only		9001	625	44		3.7	44		3.8	43		3.5	43		3.6	43		3.7
Only			650	44		3.4	44		3.5	44		3.7	44		3.8	43		3.4
			650	44		3.4	44		3.5	44		3.7	44		3.8	43		3.4
U.S.A.		to	675	45		3.8	44		3.3	44		3.4	44		3.5	44		3.6
U.S.A.			700	45		3.6	45		3.7	45		3.8	44		3.3	44		3.4
			700	45		3.6	45		3.7	45		3.8	44		3.3	44		3.4
		10,000	725	45		3.3	45		3.4	45		3.6	45		3.7	45		3.8
			750	45		3.1	45		3.2	45		3.3	45		3.4	45		3.5
			775	45		2.9	45		3.0	45		3.1	45		3.2	45		3.3

Image 37

Contents

ÐMultipoise Orientations Ð1ÐÐ2Ð DimensionsUnit Size Electrostatic Discharge ESD Precautions Safety ConsiderationsMinimum Inches Clearance to Combustible Construction → ÐClearances to CombustiblesApplications General IntroductionII. Upflow Applications Condensate Trap Location Factory-Shipped OrientationCondensate Trap Location Alternate Upflow Orientation Ð5ÐÐ6Ð Pressure Switch TubingIII Downflow Applications Condensate Trap Freeze ProtectionCondensate Trap Location Condensate Trap TubingÐ8Ð IV. Horizontal Left SUPPLY-AIR Discharge ApplicationsConstruct a Working Platform Ð9ÐHorizontal Right SUPPLY-AIR Discharge Applications ÐAttic Location and Working Platform Location → ÐHorizontal Right Tube ConfigurationIII. Hazardous Locations II. Furnace Location Relative to Cooling Equipment→ II. Installation in Upflow or Downflow Applications Installation Leveling Legs if DesiredFurnace Plenum Opening Floor Opening Casing Ðopening DimensionsWidth ÐDuct Flanges III. Installation in Horizontal ApplicationsÐfilter Information IV. Filter ArrangementBottom Closure Panel VI. GAS Piping WiringÐmaximum Capacity of Pipe Electrical ConnectionsII -V Wiring → ÐHeating and Cooling Application Wiring DiagramÐWiring Diagram Ðelectrical Data III. AccessoriesAmps Gage AmpsRemoval of Existing Furnaces from Common Vent Systems Direct VentingII. COMBUSTION-AIR and Vent Piping GeneralExample Combustion-Air and Vent Pipe DiameterCombustion-Air and Vent Pipe Attachment ÐShort Vent 5 to 8 Ft System COMBUSTION-AIR Intake Housing Plug Fitting2001 to Ðmaximum Allowable Pipe Length FT4001 to 5000³ Ðmaximum Allowable Pipe Length FT8001 to 9000³ Vent Extension PipeTwo-Pipe Termination Kit Extended Exposed Sidewall PipesÐRoof Termination Preferred IV. Multiventing and Vent Terminations Concentric Vent/Air Termination KitCondensate Drain General II. ApplicationÐConcentric Vent and Combustion-Air Sequence of Operation Heating ModeIII. Condensate Drain Protection III. Continuous Blower Mode II. Cooling ModeIV. Heat Pump Mode Component Test II. Prime Condensate Trap with Water START-UP Procedures GeneralIII. Purge GAS Lines IV. AdjustmentsSet Gas Input Rate BTU/CU FT Ð36Ð Ð37Ð Ð38Ð Ð39Ð United States Set Temperature RiseÐaltitude Derate Multiplier for U.S.A CanadaII. Check Pressure Switch Check Safety Controls Check Primary Limit ControlChecklist Ðspeed SelectorCHECKLISTÐSTART-UP ChecklistðinstallationLoad Calculation Combustion and Vent PipingÐ43Ð Service Training

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