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Carrier 50EJ, 50EW, 50EY, 50EK installation instructions 225/200

Models: 50EK 50EY 50EW 50EJ

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Table 4 Ð Electrical Data Ð 50EJ,EK,EW,EY024-048 (cont)

UNIT	NOMINAL	VOLTAGE			COMPRESSOR					OFM			IFM		POWER		ELECTRIC			POWER SUPPLY
	NOMINAL	VOLTAGE								OFM			IFM		POWER		ELECTRIC			POWER SUPPLY
	VOLTAGE	RANGE		No. 1		No. 2									EXHAUST			HEAT*
SIZE	(3 Ph 60 Hz)
		Min	Max	RLA	LRA	RLA		LRA	Qty	Hp	FLA (ea)	Hp		FLA	FLA	LRA	kW	FLA		MCA			MOCP²
															Ð	Ð	Ð	Ð		169.9/167.1	225/200
															23.6	41.6	Ð	Ð		193.5/190.7		250/225
												10		30.8/	Ð	Ð	29/36	75.1/ 86.6		169.9/167.1		225/200
												10		28.0	23.6	41.6	29/36	75.1/	86.6	193.5/190.7		250/225
														28.0	23.6	41.6	29/36	75.1/	86.6	193.5/190.7		250/225
															Ð	Ð	59/72	150.1/173.2		188.6/208.2		225/225
															23.6	41.6	59/72	150.1/173.2		218.1/237.7		250/250
															Ð	Ð	Ð	Ð		185.3/181.1	225/225
															23.6	41.6	Ð	Ð		208.9/204.7		250/250
	208/230	187	254	57.1	266	57.1		266	2	1	5.3	15		46.2/	Ð	Ð	29/36	75.1/ 86.6		185.3/181.1		225/225
	208/230	187	254	57.1	266	57.1		266	2	1	5.3	15		42.0	23.6	41.6	29/36	75.1/	86.6	208.9/204.7		250/250
														42.0	23.6	41.6	29/36	75.1/	86.6	208.9/204.7		250/250
															Ð	Ð	59/72	150.1/173.2		207.9/225.7		250/250
															23.6	41.6	59/72	150.1/173.2		237.4/255.2		275/275
															Ð	Ð	Ð	Ð		198.5/193.1	250/250
															23.6	41.6	Ð	Ð		222.1/216.7		275/250
												20		59.4/	Ð	Ð	29/36	75.1/ 86.6		198.5/193.1		250/250
												20		54.0	23.6	41.6	29/36	75.1/	86.6	222.1/216.7		275/250
														54.0	23.6	41.6	29/36	75.1/	86.6	222.1/216.7		275/250
															Ð	Ð	59/72	150.1/173.2		224.4/240.7		275/275
															23.6	41.6	59/72	150.1/173.2		253.9/270.2		300/300
															Ð	Ð	Ð	Ð		77.0		100
															12.6	23.6	Ð	Ð		89.6		110
												10		14	Ð	Ð	36	43.3		77.0		100
												10		14	12.6	23.6	36	43.3		89.6		110
															12.6	23.6	36	43.3		89.6		110
															Ð	Ð	72	86.6		104.1		110
															12.6	23.6	72	86.6		119.9		125
															Ð	Ð	Ð	Ð		84.0		100
															12.6	23.6	Ð	Ð		96.6		110
034	460	414	508	25.6	120	25.6		120	2	1	2.7	15		21	Ð	Ð	36	43.3		84.0		100
034	460	414	508	25.6	120	25.6		120	2	1	2.7	15		21	12.6	23.6	36	43.3		96.6		110
															12.6	23.6	36	43.3		96.6		110
															Ð	Ð	72	86.6		112.9		125
															12.6	23.6	72	86.6		128.6		150
															Ð	Ð	Ð	Ð		90.0		110
															12.6	23.6	Ð	Ð		102.6		125
												20		27	Ð	Ð	36	43.3		90.0		110
												20		27	12.6	23.6	36	43.3		103.6		125
															12.6	23.6	36	43.3		103.6		125
															Ð	Ð	72	86.6		120.4		125
															12.6	23.6	72	86.6		136.1		150
															Ð	Ð	Ð	Ð		61.9		80
															12.6	23.6	Ð	Ð		74.5		90
												10		11	Ð	Ð	36	34.6		61.9		70
												10		11	12.6	23.6	36	34.6		74.5		90
															12.6	23.6	36	34.6		74.5		90
															Ð	Ð	72	69.3		83.0		90
															12.6	23.6	72	69.3		98.8		100
															Ð	Ð	Ð	Ð		67.9		80
															12.6	23.6	Ð	Ð		80.5		100
	575	518	632	20.5	96	20.5		96	2	1	2.4	15		17	Ð	Ð	36	34.6		67.9		80
	575	518	632	20.5	96	20.5		96	2	1	2.4	15		17	12.6	23.6	36	34.6		80.5		100
															12.6	23.6	36	34.6		80.5		100
															Ð	Ð	72	69.3		90.5		100
															12.6	23.6	72	69.3		106.3		110
															Ð	Ð	Ð	Ð		72.9		90
															12.6	23.6	Ð	Ð		85.5		100
												20		22	Ð	Ð	36	34.6		72.9		90
												20		22	12.6	23.6	36	34.6		86.6		100
															12.6	23.6	36	34.6		86.6		100
															Ð	Ð	72	69.3		96.8		110
															12.6	23.6	72	69.3		112.5		125

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Carrier 50EJ, 50EW, 50EY, 50EK installation instructions 225/200

Contents

CONTENTS IMPORTANT Ð READ BEFORE INSTALLINGINSTALLATION Step 1 Ð Provide Unit Support SAFETY CONSIDERATIONSDegrees and Inches Fig. 1 Ð Roof Curb SizesUNIT LEVELING TOLERANCES DIMENSIONS Degrees and Inches Fig. 2 Ð Roof Curb SizesUNIT LEVELING TOLERANCES DIMENSIONS Fig. 3 Ð Base Unit Dimensions, 50EJ/EK024-034 UNIT SIZE Fig. 5 Ð Base Unit Dimensions, 50EW/EY024-034 UNIT SIZE Fig. 7 Ð Rigging Label WHEN RIGGINGNOTICE TO RIGGERS ALL PANELS MUST BE IN PLACE Table 1 Ð Physical Data OPERATING WEIGHT lbFactory Speed Setting rpm HIGH-PRESSURESWITCH psigTable 1 Ð Physical Data cont OPERATING WEIGHT lbFactory Speed Setting rpm HIGH-PRESSURESWITCH psigStep 4 Ð Make Unit Duct Connections Table 2 Ð Evaporator Fan Motor DataFig. 8 Ð Air Distribution Ð Thru-the-Bottom Fig. 9 Ð Air Distribution Ð Thru-the-SideFeatures with Thermostat Control of Unit Fig. 11 Ð Field Control Remote Start/Stop Fig. 12 Ð Control Board Diagram Fig. 13 Ð Field Power Wiring Connections Step 7 Ð Make Electrical Connections1.Remove cap from red 208-vwire Table 4 Ð Electrical Data Ð 50EJ,EK,EW,EY024-048 150/150 200/200 225/200 225/225 23.6 23.6 Fig. 14 Ð Control Box Diagram Sizes Fig. 15 Ð Control Box Diagram SizesPEC − Power Exhaust Controller PEC Ð Power Exhaust ControllerStep 8 Ð Make Outdoor-AirInlet Adjustments Fig. 16 Ð Field Control Thermostat WiringFig. 17 Ð Field Control Temperature Sensor Wiring Table 5 Ð CCN Connection Approved Shielded CablesMounting Flange of Hood Sides Fig. 18 Ð Adding Seal Strip to Top of Hood SidesFig. 20 Ð Adding Seal Strip to Attached to Filter Track Assembly Fig. 21 Ð Adding Seal Strip toHood Top Mounting Flange Fig. 22 Ð Adding Foam Strip to Cross MemberFig. 29 Ð Wire Connections for Solid State Fig. 30 Ð Psychrometric Chart forFig. 27 Ð Attaching Seal Strip to Filter Cover Fig. 28 Ð Differential Enthalpy ControlFig. 31 Ð Barometric Relief Damper and Power Exhaust Mounting DetailsFig. 32 Ð Pressure Transducer Locations Fig. 33A Ð Motormaster III Sensor Location SizesFig. 33C Ð Motormaster III Sensor Location START-UP Table 9 Ð Power Exhaust Default Set Points Direct Digital Controls DIP Switch ConguraTable 8 Ð Potentiometer Signal Levels SETTING Sequence of Operation AIRFLOW AVAILABLE EXTERNAL STATIC PRESSURE in. wg Table 15 Ð Air Quantity Limits Table 16 Ð Motor Limitations Table 17 Ð User Dened Set PointsThe control module will operate economizer, run diag- nostics to monitor alarms/alerts at all times, and respond to CCN communications to perform any congured network POC product outboard control functions such as time/ outdoor-airtemperature broadcast and global occupancy broad- cast. When the optional expansion I/O board is employed, it will perform a periodic scan and maintain a database of ex- panded I/O points perform Fire/Smoke control power ex- haust required if in Occupied mode, perform IAQ control and monitor the fan, lter, demand limit, and eld-appliedstatus with accessories Fig. 35 Ð Heat Interlock Relay Wiring Fig. 36 Ð Space Temperature Sensor WiringSERVICE Table 18 Ð Cooling Capacity Staging TableCV Units with 2 Compressors Table 19 Ð Cooling Capacity Staging TableEvaporator Fan Service and Replacement and AdjustmentLubrication Fig. 38 Ð Evaporator-FanPulley AlignmentBelt Tension Adjustment Ð To adjust belt tension Condenser-FanAdjustmentEvaporator-FanMotor Replacement Fig. 39 Ð Belt Tension AdjustmentFig. 41 Ð Cooling Charging Chart Sizes Fig. 42 Ð Cooling Charging Chart Sizes50EJ,EK,EW,EY024-034 TROUBLESHOOTINGFig. 43 Ð Typical Refrigerant Circuiting Fig. 44 Ð Typical Refrigerant Circuiting 50EJ,EK,EW,EY038,044LEGEND FPS Ð Freeze Protection Switch HPS Ð High-PressureSwitchFig. 45 Ð Typical Refrigerant Circuiting 50EJ,EW048LEGEND FPS Ð Freeze Protection Switch HPS Ð High-PressureSwitchTable 20 Ð Control Board LED Alarms Table 21 Ð I/O Channel Designations Base Module Ð CVTable 22 Ð I/O Channel Designations Base Module Ð VAVTable 23 Ð I/O Channel Designations Expansion Module Ð CV and VAVPage Page PACKAGED SERVICE TRAINING START-UPCHECKLIST TEMPERATURESPRE-START-UP ELECTRICALSTART-UPCHECKLIST cont GENERAL