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Carrier 50EY, 50EJ, 50EW, 50EK installation instructions 23.6

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		223.1/218.9	275/275
															23.6	41.6	Ð	Ð		246.7/242.5		300/300
												15		46.2/	Ð	Ð	29/36	75.1/ 86.6		223.1/218.9		275/275
												15		42.0	23.6	41.6	29/36	75.1/	86.6	246.7/242.5		300/300
														42.0	23.6	41.6	29/36	75.1/	86.6	246.7/242.5		300/300
															Ð	Ð	59/72	150.1/173.2		223.1/225.7		275/275
															23.6	41.6	59/72	150.1/173.2		246.7/255.2		300/300
															Ð	Ð	Ð	Ð		236.3/230.9	300/300
															23.6	41.6	Ð	Ð		259.9/254.5		300/300
	208/230	187	254	69.2	345	69.2		345	4	1	5.3	20		59.4/	Ð	Ð	29/36	75.1/ 86.6		236.3/230.9		300/300
	208/230	187	254	69.2	345	69.2		345	4	1	5.3	20		54.0	23.6	41.6	29/36	75.1/	86.6	259.9/254.5		300/300
														54.0	23.6	41.6	29/36	75.1/	86.6	259.9/254.5		300/300
															Ð	Ð	59/72	150.1/173.2		236.3/240.7		300/300
															23.6	41.6	59/72	150.1/173.2		259.9/270.2		300/300
															Ð	Ð	Ð	Ð		251.7/244.9	300/300
															23.6	41.6	Ð	Ð		275.3/268.5		300/300
												25		74.8/	Ð	Ð	29/36	75.1/ 86.6		251.7/244.9		300/300
												25		68.0	23.6	41.6	29/36	75.1/	86.6	275.3/268.5		300/300
														68.0	23.6	41.6	29/36	75.1/	86.6	275.3/268.5		300/300
															Ð	Ð	59/72	150.1/173.2		251.7/258.2		300/300
															23.6	41.6	59/72	150.2/173.2		275.3/287.7		300/300
															Ð	Ð	Ð	Ð		96.6		125
															12.6	23.6	Ð	Ð		109.2		125
												15		21	Ð	Ð	36	43.3		96.6		125
												15		21	12.6	23.6	36	43.3		109.2		125
															12.6	23.6	36	43.3		109.2		125
															Ð	Ð	72	86.6		112.9		125
															12.6	23.6	72	86.6		128.6		150
															Ð	Ð	Ð	Ð		102.6		125
															12.6	23.6	Ð	Ð		115.2		125
044	460	414	508	28.8	173	28.8		173	4	1	2.7	20		27	Ð	Ð	36	43.3		102.6		125
044	460	414	508	28.8	173	28.8		173	4	1	2.7	20		27	12.6	23.6	36	43.3		115.2		125
															12.6	23.6	36	43.3		115.2		125
															Ð	Ð	72	86.6		120.4		150
															12.6	23.6	72	86.6		136.1		150
															−	Ð	Ð	Ð		109.6		125
															12.6	23.6	Ð	Ð		122.2		150
												25		34	Ð	Ð	36	43.3		109.6		125
												25		34	12.6	23.6	36	43.3		122.2		150
															12.6	23.6	36	43.3		122.2		150
															Ð	Ð	72	86.6		129.1		150
															12.6	23.6	72	86.6		144.9		175
															Ð	Ð	Ð	Ð		86.7		110
															12.6	23.6	Ð	Ð		99.3		125
												15		17	Ð	Ð	36	34.6		86.7		110
												15		17	12.6	23.6	36	34.6		99.3		125
															12.6	23.6	36	34.6		99.3		125
															Ð	Ð	72	69.3		91.4		110
															12.6	23.6	72	69.3		106.3		125
															Ð	Ð	Ð	Ð		91.7		110
															12.6	23.6	Ð	Ð		104.3		125
	575	518	632	26.7	120	26.7		120	4	1	2.4	20		22	Ð	Ð	36	34.6		91.7		110
	575	518	632	26.7	120	26.7		120	4	1	2.4	20		22	12.6	23.6	36	34.6		104.3		125
															12.6	23.6	36	34.6		104.3		125
															Ð	Ð	72	69.3		96.8		125
															12.6	23.6	72	69.3		112.5		125
															Ð	Ð	Ð	Ð		96.7		110
															12.6	23.6	Ð	Ð		109.3		125
												25		27	Ð	Ð	36	34.6		96.7		110
												25		27	12.6	23.6	36	34.6		109.3		125
															12.6	23.6	36	34.6		109.3		125
															Ð	Ð	72	69.3		103.0		125
															12.6	23.6	72	69.3		118.8		125

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Carrier 50EY, 50EJ, 50EW, 50EK installation instructions 23.6

Contents

INSTALLATION Step 1 Ð Provide Unit Support CONTENTSIMPORTANT Ð READ BEFORE INSTALLING SAFETY CONSIDERATIONSUNIT LEVELING TOLERANCES DIMENSIONS Fig. 1 Ð Roof Curb SizesDegrees and Inches UNIT LEVELING TOLERANCES DIMENSIONS Fig. 2 Ð Roof Curb SizesDegrees and Inches Fig. 3 Ð Base Unit Dimensions, 50EJ/EK024-034 UNIT SIZE Fig. 5 Ð Base Unit Dimensions, 50EW/EY024-034 UNIT SIZE NOTICE TO RIGGERS ALL PANELS MUST BE IN PLACE WHEN RIGGINGFig. 7 Ð Rigging Label Factory Speed Setting rpm Table 1 Ð Physical DataOPERATING WEIGHT lb HIGH-PRESSURESWITCH psigFactory Speed Setting rpm Table 1 Ð Physical Data contOPERATING WEIGHT lb HIGH-PRESSURESWITCH psigFig. 8 Ð Air Distribution Ð Thru-the-Bottom Step 4 Ð Make Unit Duct ConnectionsTable 2 Ð Evaporator Fan Motor Data 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 PEC − Power Exhaust Controller Fig. 14 Ð Control Box Diagram SizesFig. 15 Ð Control Box Diagram Sizes PEC Ð Power Exhaust ControllerFig. 17 Ð Field Control Temperature Sensor Wiring Step 8 Ð Make Outdoor-AirInlet AdjustmentsFig. 16 Ð Field Control Thermostat Wiring Table 5 Ð CCN Connection Approved Shielded CablesFig. 20 Ð Adding Seal Strip to Fig. 18 Ð Adding Seal Strip to Top of Hood SidesMounting Flange of Hood Sides Hood Top Mounting Flange Attached to Filter Track AssemblyFig. 21 Ð Adding Seal Strip to Fig. 22 Ð Adding Foam Strip to Cross MemberFig. 27 Ð Attaching Seal Strip to Filter Cover Fig. 29 Ð Wire Connections for Solid StateFig. 30 Ð Psychrometric Chart for 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 8 Ð Potentiometer Signal Levels Direct Digital Controls DIP Switch ConguraTable 9 Ð Power Exhaust Default Set Points 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 WiringCV Units with 2 Compressors SERVICETable 18 Ð Cooling Capacity Staging Table Table 19 Ð Cooling Capacity Staging TableLubrication Evaporator Fan Service and Replacementand Adjustment Fig. 38 Ð Evaporator-FanPulley AlignmentEvaporator-FanMotor Replacement Belt Tension Adjustment Ð To adjust belt tensionCondenser-FanAdjustment Fig. 39 Ð Belt Tension AdjustmentFig. 41 Ð Cooling Charging Chart Sizes Fig. 42 Ð Cooling Charging Chart SizesFig. 43 Ð Typical Refrigerant Circuiting TROUBLESHOOTING50EJ,EK,EW,EY024-034 LEGEND FPS Ð Freeze Protection Switch Fig. 44 Ð Typical Refrigerant Circuiting50EJ,EK,EW,EY038,044 HPS Ð High-PressureSwitchLEGEND FPS Ð Freeze Protection Switch Fig. 45 Ð Typical Refrigerant Circuiting50EJ,EW048 HPS Ð High-PressureSwitchTable 20 Ð Control Board LED Alarms Table 22 Ð I/O Channel Designations Table 21 Ð I/O Channel DesignationsBase Module Ð CV Base Module Ð VAVTable 23 Ð I/O Channel Designations Expansion Module Ð CV and VAVPage Page PACKAGED SERVICE TRAINING PRE-START-UP START-UPCHECKLISTTEMPERATURES ELECTRICALSTART-UPCHECKLIST cont GENERAL