Manuals / Carrier / Household Appliance / Air Conditioner

Carrier 50EY, 50EJ, 50EK installation instructions Ð Base Unit Dimensions, 50EW/EY024-034

Models: 50EK 50EY 50EW 50EJ

1 56

Download 56 pages 61.69 Kb

Page 6

Fig. 5 Ð Base Unit Dimensions, 50EW/EY024-034

NOTES:

1.Weights include economizer (Std)

2. Center of gravity.

3.Do not locate adjacent units with discharge facing econo- mizer inlet. Minimum clearances to be:

Adjacent Units: 15 -0

Top of Units: No overhang

Condenser Coil: 4 -0

Economizer Side: 6 -0

Filter Access Side: 10 -0 (for removal of evaporator coil)

4.For smaller service and operational clearances, con- tact Carrier Application Engineering department.

5.Dimensions are in inches. Dimensions in [ ] are in millimeters.

6.For units equipped with electric heat, a ®eld-supplied 90° elbow must be installed in the supply ductwork be- low the unit discharge.

7.For side-supply/return applications, a single return and supply ductwork connection is recommended for cov- ering both return and both supply openings.

LEGEND

VFD Ð Variable Frequency Drive

UNIT SIZE	OPERATING	A	B	CORNER WEIGHT
UNIT SIZE	WEIGHT	A	B			(lb)
50EW/EY	WEIGHT					(lb)
50EW/EY	(lb)	ft-in.	ft-in.	1	2		3	4
	(lb)	ft-in.	ft-in.	1	2		3	4
024	4016	5-113¤8	3-511¤16	823	914		1199	1080
028	4102	5- 81¤2	3-75¤8	844	859		1210	1189
030	4102	5- 81¤2	3-75¤8	844	859		1210	1189
034	4102	5- 81¤2	3-75¤8	844	859		1210	1189

Fig. 5 Ð Base Unit Dimensions, 50EW/EY024-034

6

Image 6

Carrier 50EY, 50EJ, 50EK installation instructions Ð Base Unit Dimensions, 50EW/EY024-034

Contents

INSTALLATION Step 1 Ð Provide Unit Support CONTENTSIMPORTANT Ð READ BEFORE INSTALLING SAFETY CONSIDERATIONSFig. 1 Ð Roof Curb Sizes UNIT LEVELING TOLERANCES DIMENSIONSDegrees and Inches Fig. 2 Ð Roof Curb Sizes UNIT LEVELING TOLERANCES DIMENSIONSDegrees and Inches Fig. 3 Ð Base Unit Dimensions, 50EJ/EK024-034 UNIT SIZE Fig. 5 Ð Base Unit Dimensions, 50EW/EY024-034 UNIT SIZE WHEN RIGGING NOTICE TO RIGGERS ALL PANELS MUST BE IN PLACEFig. 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. 18 Ð Adding Seal Strip to Top of Hood Sides Fig. 20 Ð Adding Seal Strip toMounting 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 Direct Digital Controls DIP Switch Congura Table 8 Ð Potentiometer Signal LevelsTable 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 SizesTROUBLESHOOTING Fig. 43 Ð Typical Refrigerant Circuiting50EJ,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