Carrier 50EW, 50EY, 50EK installation instructions Physical Data, Unit 50EJ,EK,EW,EY

Table 1 Ð Physical Data

UNIT 50EJ,EK,EW,EY		024			028				030				034
NOMINAL CAPACITY (tons)		20			25				27				30
OPERATING WEIGHT (lb)*
Unit
Al/Al²		4016			4102				4102				4102
Al/Cu²		4236			4322				4322				4322
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) (Ckt1, 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 or Copper 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 or Copper 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	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	4.6	6.6	6.9	4.9	6.1	7.1		6.6	6.7		7.5	6.4	6.9	7.5
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.)	11.1	12.5	11.1	11.1	11.1	11.1		13.7	11.1		11.1	12.5	11.1	11.1
Nominal Fan Shaft Diameter (in.)		111¤16			111¤16				111¤16				111¤16
Belt, Quantity...Type	1...BX59	1...BX60	1...5VX590	1...BX56	1...BX56	1...5VX590		1...BX62	1...5VX590	1...5VX600		1...BX60	1...5VX590	1...5VX600
Belt, Length (in.)	62	63	59	59	59	59		65	59		60	63	59	60
Pulley Center Line Distance (in.)	16.0-18.7	15.6-18.4	15.0-17.9	15.6-18.4	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)	725	924	1088	773	962	1119		843	1056		1182	896	1088	1182
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
RETURN-AIR FILTERS
Quantity...Size (in.)		10...20x24x2			10...20x24x2				10...20x24x2				10...20x24x2
OUTDOOR-AIR FILTERS		8...16x25			8...16x25				8...16x25				8...16x25
Quantity...Size (in.)		4...20x25			4...20x25				4...20x25				4...20x25
POWER EXHAUST			Direct Drive, 3-Speed, Single-Phase Motor (Factory-Wired For High Speed) and Forward Curved Fan
Motor, Quantity...Hp							4...1
Fan, Diameter...Width (in.)							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 VAV unit (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. For more drive information, see Table 2.

NOTES:

1.See Table 2 for evaporator fan motor data.

2.Sizes 038 and 048 are 50EJ,EW units 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

9