Carrier 48EW, 48EY024-068, 48AW, 48AY020-060, 48EK, 48AK, 48EJ specifications UNIT 48AJ,AK,AW,AY

Table 1A — Physical Data — 48AJ,AK,AW,AY Units (cont)

UNIT 48AJ,AK,AW,AY				035D/E					040D/E					050D/E						060D/E
NOMINAL CAPACITY (tons)			35					40					50					60
BASE UNIT OPERATING WEIGHT (lb)									See Operating Weights Table 2.
COMPRESSOR
Quantity...Type (Ckt 1 , Ckt 2)				2...06D537			1...06D537, 1...06EA250						2…06EA250						2...06EA265
Number of Refrigerant Circuits			2					2					2					2
Oil (oz) (Ckt 1 , Ckt 2)				115 ea.				115, 224						224 ea.						304 ea.
REFRIGERANT TYPE
Operating Charge (lb-oz)
Circuit 1			34-8					51-8					50-0					79-8
Circuit 2			34-8					49-8					50-0					79-8
CONDENSER COIL *					Cross-Hatched 3/8" Copper Tubes, Aluminum Lanced, Aluminum Pre-Coated, or Copper Plate Fins
Quantity			2					2					2					2
Rows...Fins/in.			3...15					4...15					4...15							4…15
Total Face Area (sq ft)			58.3					66.7					66.7					100
CONDENSER FAN											Propeller Type
Nominal Cfm			27,064					27,064					27,064					43,900
Quantity...Diameter (in.)			4...30					4...30					4...30					6...30
Motor Hp			1					1					1					1
EVAPORATOR COIL								Cross-Hatched Copper Tubes, Aluminum Plate Fins
Tube Size (in.)			3/8					1/2					1/2					1/2
Rows...Fins/in.			4...15					6...15					6...15					4...17
Total Face Area (sq ft)			34.7					31.3					31.3					48.1
EVAPORATOR FAN											Centrifugal Type
Quantity...Size (in.)				2...20 X 15					2...20 X 15					2...20 X 15						3...20 X 15
Type Drive				Belt					Belt					Belt						Belt
Nominal Cfm			14,000					16,000					20,000					24,000
Motor Hp		10		15		20	15		20		25	20		25		30	25			30		40
Motor Frame Size		215T		254T		256T	254T		256T		284T	256T		284T		286T	284T			286T		324T
Motor Bearing Type				Ball					Ball					Ball						Ball
Maximum Allowable Rpm			1200					1200					1300					1200
Motor Pulley Pitch Diameter		6.1		5.3		5.7	5.3		5.7		7.5	6.3		8.1		7.5	5.3			8.1		9.4
Nominal Motor Shaft Diameter (in.)		13/8		15/8		15/8	15/8		15/8		17/8	15/8		17/8		17/8	17/8			17/8		21/8
Fan Pulley Pitch Diameter (in.)		13.7		9.5		9.5	9.5		9.5		11.1	11.1		12.5		11.1	9.1			12.5		13.6
Nominal Fan Shaft Diameter (in.)				115/16					115/16					115/16						115/16
Belt Quantity		1		2		2	2		2		2	2		2		2	3			3		2
Belt Type		5VX610		5VX530		5VX550	5VX530		5VX550		5VX590	5VX570		5VX630		5VX590	5VX530			5VX630		5VX650
Belt Length (in.)		61		53		55	53		55		59	57		63		59	53			63		65
Pulley Center Line Distance (in.)		15.6-18.4		15.0-17.9		15.0-17.9	15.0-17.9		15.0-17.9	14.6-17.6		15.0-17.9		14.6-17.6	14.6-17.6		15.2-17.5			14.7-17.2	14.2-17.0
Factory Speed Setting (rpm)		779		976		1050	976		1050		1182	993		1134		1182	1019			1134		1214
FURNACE SECTION
Rollout Switch Cutout
Temp (F) †			225					225					225					225
Burner Orifice Diameter (in. ...drill size)
Natural Gas	Std		.120...31					.120...31					.120...31					.120...31
Liquid Propane	Alt		.096...41					.096...41					.096...41					.096...41
Thermostat Heat Anticipator Setting
Stage 1 (amps)			0.1					0.1					0.1					0.1
Stage 2 (amps)			0.1					0.1					0.1					0.1
Gas Input (Btuh)	Stage 1	300,000/600,000					300,000/600,000					300,000/600,000					582,000/ 873,000
	Stage 2	400,000/800,000					400,000/800,000					400,000/800,000					776,000/1,164,000
Efficiency (Steady State) (%)			82					82					82					82
Temperature Rise Range			10-40/30-60					10-40/30-60					10-40/30-60					10-40/30-60
Manifold Pressure	(in. wg)
Natural Gas	Std		3.5					3.5					3.5					3.3
Liquid Propane	Alt		3.5					3.5					3.5					3.3
Gas Valve Quantity			2					2					2					3
HIGH-PRESSURE SWITCH (psig)
Cutout			426					426					426					426
Reset (Auto.)			320					320					320					320
LOW-PRESSURE SWITCH (psig)
Cutout			27					27					27					27
Reset (Auto.)			67					67					67					67
RETURN-AIR FILTERS
Quantity...Size (in.)			10...20 x 24 x 2					10...20 x 24 x 2					10...20 x 24 x 2					16...20 x 24 x 2
OUTDOOR AIR FILTERS				8...16 x 25					8...16 x 25					8...16 x 25						12...16 x 25
Quantity...Size (in.)				4...20 x 25					4...20 x 25					4...20 x 25						6...20 x 25

		LEGEND
Al	—	Aluminum
Bhp	—	Brake Horsepower
Cu	—	Copper

*Sizes 020-030: Circuit 1 uses the lower portion of condenser coil, Circuit 2 uses the upper portion.

Sizes 035-050: Circuit 1 uses the left condenser coil, Circuit 2 the right. All units have intertwined evaporator coils.

†Rollout switch is manual reset.

NOTE: High heat is for 48AJ,AW only.

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