Carrier EK, 48EJ, EW, EY024-048 installation instructions Ð Physical Data

Table 1 Ð Physical Data

UNIT 48EJ,EK,EW,EY				024D/E					028D/E				030D/E				034D/E
NOMINAL CAPACITY (tons)				20				25					27				30
OPERATING WEIGHT (lb)*
Unit
Al/Al² (Lo Heat/Hi Heat)				4176/4256				4262/4342					4262/4342				4262/4342
Al/Cu² (Lo Heat/Hi Heat)				4396/4476				4482/4562					4482/4562				4482/4562
Roof Curb (14-in. curb)				365				365					365				365
COMPRESSOR
Type Ckt 1				06D328					06D328				06D537				06D537
Ckt 2				06D818					06D328				06D328				06D537
Number of Refrigerant Circuits				2				2					2				2
Oil (oz) (Ckt 1, Ckt 2)				115, 88					115 ea.				115 ea.				115 ea.
REFRIGERANT TYPE											R-22
Operating Charge (lb-oz)
Circuit 1**				25-0				25-0					25-0				25-0
Circuit 2				31-0				25-0					25-0				25-0
CONDENSER COIL						Cross-Hatched 3¤8		Copper Tubes, Aluminum Lanced, Aluminum Pre-Coated, or Copper Plate Fins
Quantity				1				1					1				1
Rows...Fins/in.				4...15				4...15					4...15				4...15
Total Face Area (sq ft)				33.3				33.3					33.3				33.3
CONDENSER FAN										Propeller Type
Nominal Cfm				13,420				13,420					13,420				13,420
Quantity...Diameter (in.)				2...30				2...30					2...30				2...30
Motor Hp (1075 Rpm)				1				1					1				1
EVAPORATOR COIL							Cross-Hatched 3¤8 Copper Tubes, Aluminum Plate Fins, Intertwined Circuits
Rows...Fins/in.				4...15				4...15					4...15				4...15
Total Face Area (sq ft)				31.7				31.7					31.7				31.7
EVAPORATOR FAN										Centrifugal Type
Quantity...Size (in.)				2...20x15					2...20x15				2...20x15				2...20x15
Type Drive				Belt					Belt				Belt				Belt
Nominal Cfm				8,000				10,000					11,000				12,000
Motor Hp			5	10²²		15	7.5		10²²	15		10	15²²		20	10	15²²	20
Motor Frame Size (Standard)			S184T	S215T		D254T	S213T		S215T	D254T		S215T	D254T		S256T	S215T	D254T	S256T
(High Efficiency)			S184T	S215T		S254T	S213T		S215T	S254T		S215T	S254T		S256T	S215T	S254T	S256T
Motor Bearing Type				Ball					Ball				Ball				Ball
Maximum Allowable Rpm				1200				1200					1200				1200
Motor Pulley Pitch Diameter			4.8	4.4		5.7	5.4		6.1	5.5		4.4	4.9		5.9	4.4	5.7	5.9
Nominal Motor Shaft Diameter (in.)			11¤8	13¤8		15¤8	13¤8		13¤8	15¤8		13¤8	15¤8		15¤8	13¤8	15¤8	15¤8
Fan Pulley Pitch Diameter (in.)			12.4	8.6		9.1	12.4		11.1	8.7		9.4	8.1		8.7	9.0	9.1	8.7
Nominal Fan Shaft Diameter (in.)				115¤16					115¤16				115¤16				115¤16
Belt, Quantity...Type			1...BX59	2...BX51	2...5VX530		1...BX59		1...5VX590	2...5VX530		2...BX52	2...5VX500	2...5VX530		2...BX51	2...5VX530	2...5VX530
Belt, Length (in.)			62	54		53	62		59	53		55	50		53	54	53	53
Pulley Center Line Distance (in.)			16.0-18.7	15.6-18.4	15.0-17.9		15.6		-18.4	15.0-17.9		15.6-18.4	15.0-17.9			15.6-18.4	15.0-17.9
Factory Speed Setting (rpm)			717	924		1096	773		962	1106		848	1059		1187	884	1096	1187
FURNACE SECTION
Rollout Switch Cutout Temp (F)				225				225					225				225
Burner Ori®ce Diameter
(in. ...drill size)
Natural Gas	Std			.111...34				.111...34					.111...34				.111...34
Liquid Propane	Alt			.089...43				.089...43					.089...43				.089...43
Thermostat Heat Anticipator
Setting (amps)
Stage 1				0.1				0.1					0.1				0.1
Stage 2				0.1				0.1					0.1				0.1
Gas Input (Btuh)	Stage 1	Low		262,500				262,500					262,500				262,500
		High		394,000				394,000					394,000				394,000
	Stage 2	Low		350,000				350,000					350,000				350,000
Efficiency (Steady State) (%)		High		525,000				525,000					525,000				525,000
				82				82					82				82
Temperature Rise Range				15-45/35-65				15-45/35-65					15-45/35-65				15-45/35-65
Manifold Pressure (in. wg)
Natural Gas	Std			3.5				3.5					3.5				3.5
Liquid Propane	Alt			3.5				3.5					3.5				3.5
Gas Valve Quantity				2				2					2				2
Field Gas Connection Size				1.5				1.5					1.5				1.5
(in.-FPT)
HIGH-PRESSURE SWITCH (psig)
Cutout				426				426					426				426
Reset (Auto.)				320				320					320				320
LOW-PRESSURE SWITCH (psig)
Cutout				7				7					7				7
Reset (Auto.)				22				22					22				22
OUTDOOR-AIR FILTERS										8...16 × 25
Quantity...Size (in.)										4...20 × 25
RETURN-AIR FILTERS
Quantity...Size (in.)				10...20x24x2					10...20x24x2				10...20x24x2				10...20x24x2
POWER EXHAUST						Direct Drive, 3-Speed, Single-Phase Motor (Factory-Wired for High Speed) and Forward-Curved Fan
Motor, Quantity...Hp				4...1				4...1					4...1				4...1
Fan, Diameter... Width (in.)				11...10				11...10					11...10				11...10

LEGEND

Al Ð Aluminum

Cu Ð Copper

*Weight of unit does not include variable frequency drive (VFD) barometric relief, or power exhaust. If a VFD is installed, add the VFD weight in the table at right.

²Evaporator coil ®n material/condenser coil ®n material.

**Sizes 024-034: Circuit 1 uses the lower portion of condenser coil, Circuit 2 uses the upper portion. Sizes 038-048: Circuit 1 uses the left condenser coil, Circuit 2 the right. All units have intertwined evaporator coils.

²²Motor and drive shown will deliver approximately 2.5 in. wg net external static. See Table 2 for more information.

Rollout switch is manual reset.

NOTE: High heat is for 48EJ,EW only.

VFD		VFD WEIGHTS (lb)
(Hp)	208/230 v		460 v	575 v
5	20		22	60
7.5	51		37	64
10	51		61	64
15	61		63	109
20	63		111	109
25	105		112	174
30	172		118	180

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