Carrier EK, 48EJ, EW, EY024-048 installation instructions Electrical Data, Rla Lra, FLA LRA MCA Mocp

Page 18

Table 4 Ð Electrical Data

UNIT	NOMNAL	VOLTAGE		COMPRESSOR					OFM				IFM		POWER		COMBUSTION		POWER SUPPLY
UNIT	NOMNAL	RANGE		No. 1		No. 2			OFM				IFM		EXHAUST		FAN MOTOR		POWER SUPPLY
SIZE	VOLTAGE	RANGE		No. 1		No. 2									EXHAUST		FAN MOTOR
48E	(3 Ph 60 Hz)	Min	Max	RLA	LRA	RLA	LRA	Qty	Hp		FLA	Hp		FLA	FLA	LRA	FLA		MCA		MOCP*
		Min	Max	RLA	LRA	RLA	LRA	Qty	Hp		(ea)	Hp		FLA	FLA	LRA	FLA		MCA		MOCP*
											(ea)
												5		16.7/	Ð	Ð	0.96		101.8/100.3		125/125
												5		15.2	23.6	41.6	0.96		125.4/123.9		150/150
														15.2	23.6	41.6	0.96		125.4/123.9		150/150
	208/230	187	254	39.1	228	25.6	160	2	1		5.3	10		30.8/	Ð	Ð	0.96		115.9/113.1		150/150
	208/230	187	254	39.1	228	25.6	160	2	1		5.3	10		28.0	23.6	41.6	0.96		139.5/136.7		175/175
														28.0	23.6	41.6	0.96		139.5/136.7		175/175
												15		46.2/	Ð	Ð	0.96		131.3/127.1		150/150
												15		42.0	23.6	41.6	0.96		154.9/150.7		175/175
														42.0	23.6	41.6	0.96		154.9/150.7		175/175
												5		7.6	Ð	Ð	0.50		49.4		60
												5		7.6	12.6	23.6	0.50		62.0		80
															12.6	23.6	0.50		62.0		80
024	460	414	508	19.9	114	11.5	80	2	1		2.7	10		14.0	Ð	Ð	0.50		55.8		70
024	460	414	508	19.9	114	11.5	80	2	1		2.7	10		14.0	12.6	23.6	0.50		68.4		80
															12.6	23.6	0.50		68.4		80
												15		21.0	Ð	Ð	0.50		62.8		80
												15		21.0	12.6	23.6	0.50		75.4		90
															12.6	23.6	0.50		75.4		90
												5		6.1	Ð	Ð	0.50		40.5		50
												5		6.1	12.6	23.6	0.50		53.1		60
															12.6	23.6	0.50		53.1		60
	575	518	632	16.0	91	9.6	64	2	1		2.4	10		11.0	Ð	Ð	0.50		45.4		60
	575	518	632	16.0	91	9.6	64	2	1		2.4	10		11.0	12.6	23.6	0.50		58.0		70
															12.6	23.6	0.50		58.0		70
												15		17.0	Ð	Ð	0.50		51.4		60
												15		17.0	12.6	23.6	0.50		64.0		80
															12.6	23.6	0.50		64.0		80
												7.5		24.2/	Ð	Ð	0.96		122.8/120.6		150/150
												7.5		22.0	23.6	41.6	0.96		146.4/144.2		175/175
	208/230	187	254	39.1	228	39.1	228	2	1		5.3	10		30.8/	Ð	Ð	0.96		129.4/126.6		150/150
	208/230	187	254	39.1	228	39.1	228	2	1		5.3	10		28.0	23.6	41.6	0.96		153.0/150.2		175/175
														28.0	23.6	41.6	0.96		153.0/150.2		175/175
												15		46.2/	Ð	Ð	0.96		144.8/140.6		175/175
												15		42.0	23.6	41.6	0.96		168.4/164.2		200/200
														42.0	23.6	41.6	0.96		168.4/164.2		200/200
												7.5		11.0	Ð	Ð	0.50		61.2		80
												7.5		11.0	12.6	23.6	0.50		73.8		90
															12.6	23.6	0.50		73.8		90
028	460	414	508	19.9	114	19.9	114	2	1		2.7	10		14.0	Ð	Ð	0.50		64.2		80
028	460	414	508	19.9	114	19.9	114	2	1		2.7	10		14.0	12.6	23.6	0.50		76.8		90
															12.6	23.6	0.50		76.8		90
												15		21.0	Ð	Ð	0.50		71.2		90
												15		21.0	12.6	23.6	0.50		83.8		100
															12.6	23.6	0.50		83.8		100
												7.5		9.0	Ð	Ð	0.50		49.8		60
												7.5		9.0	12.6	23.6	0.50		62.4		70
															12.6	23.6	0.50		62.4		70
	575	518	632	16.0	91	16.0	91	2	1		2.4	10		11.0	Ð	Ð	0.50		51.8		60
	575	518	632	16.0	91	16.0	91	2	1		2.4	10		11.0	12.6	23.6	0.50		64.4		80
															12.6	23.6	0.50		64.4		80
												15		17.0	Ð	Ð	0.50		57.8		70
												15		17.0	12.6	23.6	0.50		70.4		80
															12.6	23.6	0.50		70.4		80
												10		30.8/	Ð	Ð	0.96		151.9/149.1		200/200
												10		28.0	23.6	41.6	0.96		175.5/172.7		225/225
														28.0	23.6	41.6	0.96		175.5/172.7		225/225
	208/230	187	254	57.1	266	39.1	228	2	1		5.3	15		46.2/	Ð	Ð	0.96		167.3/163.1		225/225
	208/230	187	254	57.1	266	39.1	228	2	1		5.3	15		42.0	23.6	41.6	0.96		190.9/186.7		225/225
														42.0	23.6	41.6	0.96		190.9/186.7		225/225
												20		59.4/	Ð	Ð	0.96		180.5/175.1		225/225
												20		54.0	23.6	41.6	0.96		204.1/198.7		250/250
														54.0	23.6	41.6	0.96		204.1/198.7		250/250
												10		14.0	Ð	Ð	0.50		71.3		90
												10		14.0	12.6	23.6	0.50		83.9		100
															12.6	23.6	0.50		83.9		100
030	460	414	508	25.6	120	19.9	114	2	1		2.7	15		21.0	Ð	Ð	0.50		78.3		100
030	460	414	508	25.6	120	19.9	114	2	1		2.7	15		21.0	12.6	23.6	0.50		90.9		110
															12.6	23.6	0.50		90.9		110
												20		27.0	Ð	Ð	0.50		84.3		100
												20		27.0	12.6	23.6	0.50		96.9		110
															12.6	23.6	0.50		96.9		110
												10		11.0	Ð	Ð	0.50		57.4		70
												10		11.0	12.6	23.6	0.50		70.0		90
															12.6	23.6	0.50		70.0		90
	575	518	632	20.5	96	16.0	91	2	1		2.4	15		17.0	Ð	Ð	0.50		63.4		80
	575	518	632	20.5	96	16.0	91	2	1		2.4	15		17.0	12.6	23.6	0.50		76.0		90
															12.6	23.6	0.50		76.0		90
												20		22.0	Ð	Ð	0.50		68.4		80
												20		22.0	12.6	23.6	0.50		81.0		100
															12.6	23.6	0.50		81.0		100

See Legend and Notes on page 19.

18

Image 18

Contents Installation, Start-Up Service Instructions Field Fabricate Ductwork Instructions onUnit Leveling Tolerances Dimensions Degrees and InchesRoof Curb Sizes Weight Unit OperatingSize 48EJ,EKD044 Ft-in 48EJ,EKD03848EJE038 48EJE044Base Unit Dimensions, 48EW,EY024-034 Base Unit Dimensions, 48EW,EY038-048 48EJ,EK,EW,EYD034 Unit Weight 48EJ,EK,EW,EYD02448EJ,EK,EW,EYD028 48EJ,EK,EW,EYD030 48EJ,EK,EW,EYD038Physical Data Unit 48EJ,EK,EW,EY4442/4602 4668/4828 4955/5115 Air Distribution Ð Thru-the-Bottom Combustion Fan Housing Location Unit Configuration Default Cooling Default Heating VAVField Control Remote Start/Stop Make Electrical Connections CCN SIOLED Electrical Data RLA LRAFLA LRA MCA Mocp Hacr FLA LRAFLA NECHeating, Air Conditioning Qty044 Minimum Circuit AmpsGND Ð Ground Terminal BlockDIP PEC2413 or CCN Connection Approved Shielded CablesManufacturer Cable Part no 8772RED Make Outdoor-Air Inlet AdjustmentsColor Code Recommendations WhiteAdding Seal Strip to Top of Hood Sides Adding Foam Strip to Hood Side Mounting Angle With Tabs Attached to Filter Track Assembly Psychrometric Chart for Enthalpy Control Barometric Relief Damper and Power Exhaust Mounting Details Pressure Transducer Locations START-UP VFD Supply Air Pressure Set Point Pressure Control VFDSET Point Building Pressure Signal Level Direct Digital Controls DIP Switch ConguraPotentiometer Signal Levels VdcPower Exhaust Default Set Points DIP Switch CongurationDIP Switch Factory Settings Airflow 18,000 16,00017,000 19,000528 572 615 656 695 733 769 805 ESP Fan Performance Ð Power ExhaustMotor Limitations Standard Efficiency MotorsSequence of Operation Air Quantity LimitsUser Dened Set Points GAS HEATING, Variable AIR Volume VAV Units DEG. F Reset COMHIR Smoke Control Modes Device Pressurization Smoke Purge Evacuation Fire ShutdownCooling Capacity Staging Table, CV Units With 2 Compressors StagesCompressor Lubrication Manufacturer LubricantEvaporator Fan Service and Replacement Typical Gas Heating SectionEvaporator-Fan Motor Replacement Condenser-Fan AdjustmentBelt Tension Adjustment Protective DevicesGas Valve Ifcb AHAIFC TranTypical Power Schematic 48EJ,EK,EW,EY024-034 208/230-3-60 Typical VAV 115-v Control Circuit Typical CV 115-v Control Circuit Typical VAV 24-v Control Circuit Typical CV 24-v Control Circuit Troubleshooting Typical Refrigerant Circuiting 48EJ,EK,EW,EY038,044 Typical Refrigerant Circuiting 48EJ,EK,EW,EY048 IGC Control Heating and Cooling IGC Control Board LED Alarms Control Board LED AlarmsTerminal no Assignment I/O Channel Designations Base Module Ð CVI/O Channel Designations Base Module Ð VAV SPTPackaged Service Training START-UP Checklist General

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Manual 118 pages 46.64 Kb

EW, EY024-048, EK, 48EJ specifications

The Carrier 48EJ, 48AW, 48EK, 48AJ, and 48EY024-068 are cutting-edge rooftop air conditioning units designed for commercial applications. These models are renowned for their reliability, energy efficiency, and innovative technologies aimed at providing optimal indoor comfort.

One of the standout features of these units is their advanced cooling and heating capabilities. They employ a multi-stage compressor system that allows for precise temperature control, accommodating various load requirements. This flexibility is particularly beneficial in commercial settings where the cooling load can fluctuate throughout the day.

Energy efficiency is paramount in today’s environmental landscape, and Carrier has ensured that these models meet stringent efficiency standards. They incorporate high-efficiency scroll compressors, which significantly reduce energy consumption while delivering powerful performance. The units are also equipped with variable speed fans that adjust airflow based on demand, further optimizing energy use.

In terms of construction, these rooftop units feature a robust design that enhances durability and longevity. The cabinet is constructed to withstand harsh weather conditions, ensuring reliable performance year-round. Additionally, the units are equipped with corrosion-resistant coatings, particularly useful in coastal environments where salt exposure can be a concern.

The Carrier 48EJ, 48AW, 48EK, 48AJ, and 48EY models utilize advanced controls and connectivity features, allowing for easy integration into building management systems. This connectivity enables remote monitoring and control, facilitating quick response to changing conditions and simplifying maintenance tasks.

Noise reduction is another key characteristic of these models. They are designed with sound-absorbing insulation and low-noise fan blades to ensure quiet operation, making them suitable for noise-sensitive environments such as schools and hospitals.

These units are also available with various options for air filtration and dehumidification. The use of high-efficiency air filters enhances indoor air quality by trapping dust, pollen, and other airborne particles. Enhanced dehumidification capabilities ensure that spaces remain comfortable even in humid conditions.

In conclusion, the Carrier 48EJ, 48AW, 48EK, 48AJ, and 48EY024-068 rooftop units are engineered to offer exceptional performance, energy efficiency, and durability. With their advanced technologies and user-friendly features, they stand out as reliable solutions for meeting diverse commercial cooling and heating needs, making them a popular choice for many businesses.