Carrier ZN030-105, ZW, Z6, 48ZT, Z8075-105 B - Physical Data 48ZG,ZN055-070

Table 1B — Physical Data (48ZG,ZN055-070)

BASE UNIT		48ZG,ZN055				48ZG,ZN060			48ZG,ZN070
NOMINAL CAPACITY (tons)			55				60			70
OPERATING WEIGHT (lb)		Standard Chassis		Extended Chassis		Standard Chassis		Extended Chassis	Standard Chassis
	Base Unit
	Low Heat	8700		9248		9000		9,548		9,420
	High Heat	8820		9368		9120		9,668		9,550
	With Economizer
	Low Heat	9230		9730		9530		10,030		9,950
	High Heat	9350		9850		9650		10,450	10,080
COMPRESSORS						Semi-Hermetic
	Quantity...Type	2...06E				2...06E			2...06E
	Oil Charge (Pints)	19, 14					19			19
	Capacity Steps (%)
	CV	60,100				50,100			45,100
	VAV	20,40,60,80,100				17,33,50,67,83,100			14,29,43,51,66,71,85,100
	Number of Refrigerant Circuits		2				2			2
REFRIGERANT						R-22
	Operating Charge (lb), Ckt 1/Ckt 2
	Standard Evaporator Coil	59.0/44.5				61.0/61.0			70.5/64.5
	Standard Evaporator with HGBP	62.0/44.5				64.0/61.0			73.5/64.5
	Alternate High-Capacity Evaporator Coil	72.0/58.0				69.5/69.5			82.5/74.5
	Alternate High-Capacity Evaporator	75.0/58.0				72.5/69.5			85.5/74.5
	with HGBP
CONDENSER COILS						3/8-in. Tube Diameter
	Quantity		4				4			4
	Rows...Fins/in.
	Aluminum	2...17.0, 3...17.0				3...17.0			3...17.0
	Copper (Optional)	2...15.7, 3...15.7				3...15.7			3...15.7
	Total Face Area (sq ft)		72.4				72.4		108.4
EVAPORATOR COILS
	Quantity				2
	Total Face Area (sq ft)				61.5
	Refrigerant Feed Device...No. per Circuit					TXV...2
	Standard Evaporator Coils					1/2 in. Tube Dia
	Rows...Fins/in.	3...17.0				4...17.0			4...17.0
	Fin Type	Double Wavy				Double Wavy			Double Wavy
	Tube Type	Smooth				Smooth			Smooth
	Alternate, High-Capacity Evaporator Coils					1/2 in. Tube Dia
	Rows...Fins/in.		6...16				6...16		6...16
	Fin Type	Double Wavy				Double Wavy			Double Wavy
	Tube Type	Cross Hatched				Cross Hatched			Cross Hatched
HEATING SECTION		Low Heat		High Heat		Low Heat		High Heat	Low Heat		High Heat
	Number of Heat Exchangers	2		3		2		3	2		3
	Input (MBtuh)	650		975		650		975	650		975
	Output (MBtuh)	527		790		527		790	527		790
	Temperature Rise Range (F)	10-40		20-50		10-40		20-50	10-40		20-50
	Efficiency (%)	81		81		81		81	81		81
	Burner Orifice Diameter
	Quantity (in. ...drill no.)	14 (.1285...30)		21 (.1285...30)		14 (.1285...30)		21 (.1285...30)	14 (.1285...30)		21 (.1285...30)
	Manifold Pressure (in. wg)	3.3		3.3		3.3		3.3	3.3		3.3
	Line Pressure (in. wg) (min...max)	5.0...13.0		5.0...13.0		5.0...13.0		5.0...13.0	5.0...13.0		5.0...13.0
	Firing Stages	2		2		2		2	2		2
	Number of Gas Valves	2		3		2		3	2		3
CONDENSER FANS						Propeller Type
	Quantity...Diameter (in.)		4...30				4...30		5...30
	Nominal Cfm	40,000				40,000			50,000
	Motor Hp...Rpm	1.0...1140				1.0...1140			1.0...1140
SUPPLY FAN						Centrifugal 25 x 25 in.
	Nominal Cfm	17,500				21,000			24,500
	Maximum Allowable Cfm	25,000				30,000			30,000
	Maximum Allowable Rpm		800				800			800
	Shaft Diameter at Pulley (in.)		111/16				111/16		111/16
SUPPLY-FAN MOTOR AND DRIVE						(Any motor available on any unit)
	Motor Hp		15			20		25	30		40
	Motor Frame Size		254T			256T		284T	286T		S324T
	Efficiency at Full Load (%)
	High Efficiency		91.0			91.0		91.7	92.4		93.0
	Premium Efficiency		93.0			93.6		93.6	93.6		94.5
	Fan Pulley Pitch Diameter (in.)		13.7			13.7		13.7	15.5		16.1
	Motor Pulley Pitch Diameter (in.)		4.5			5.1		5.5	5.9		6.7
	Resulting Fan Speed (rpm)		575			651		703	711		740
	Belts Quantity...Type	2...5VX1230				2...5VX1230		2...5VX1230	2...5VX1230		3...5VX1250
	Center Distance Range (in.)	48.25-44.00				48.25-44.00		48.50-44.25	48.50-44.25		48.25-44.00
OPTIONAL POWER EXHAUST				Centrifugal, 15 x 15 in. (Any motor available on any unit)
	Quantity...Motor Hp		2...5			2...7.5			2...10
	Motor Frame Size		184T				213T		215T
	Efficiency at Full Load (%) High/Premium	87.5/89.5				88.5/91.7			89.5/91.7
	Resulting Fan Rpm		740				820			920
	Maximum Allowable Rpm		1000				1000		1000
FILTERS
	Standard Efficiency Throwaway (Standard)	12...20 x 25 x 2				12...20 x 25 x 2			12...20 x 25 x 2
	Quantity...Size (in.)	12...20 x 20 x 2				12...20 x 20 x 2			12...20 x 20 x 2
	Medium Efficiency (30%) Pleated (Optional)	12...20 x 25 x 2				12...20 x 25 x 2			12...20 x 25 x 2
	Quantity...Size (in.)	12...20 x 20 x 2				12...20 x 20 x 2			12...20 x 20 x 2
	High Efficiency (90%) Bag Filters
	with High Velocity Prefilters (Optional)
	Quantity...Size (in.)	6...24 x 24 x 22				6...24 x 24 x 22			6...24 x 24 x 22
	Bag Filter
		6...24 x 20 x 22				6...24 x 20 x 22			6...24 x 20 x 22
	Prefilter	6...24 x 24 x 2				6...24 x 24 x 2			6...24 x 24 x 2
		6...20 x 24 x 2				6...20 x 24 x 2			6...20 x 24 x 2
OUTSIDE AIR SCREENS		4...25 x 16 x 1				4...25 x 16 x 1			4...25 x 16 x 1
	Standard Hood (25%) Quantity...Size (in.)
		2...20 x 16 x 1				2...20 x 16 x 1			2...20 x 16 x 1
OPTIONAL ECONOMIZER FILTER						Aluminum Frame, Permanent
	Quantity...Size (in.)	12...16 x 25 x 1				12...16 x 25 x 1			12...16 x 25 x 1
		2...16 x 20 x 1				2...16 x 20 x 1			2...16 x 20 x 1
	LEGEND
CV	— Constant Volume
HGBP — Hot Gas Bypass
MBtuh — Btuh in Thousands
TXV	— Thermostatic Expansion Valve
VAV	— Variable Air Volume

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