York CU060 Installation Instruction
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York CU060 Installation Instruction

Water cooled air conditioning units
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See also: Technical Manual , Instruction and Installation Manual
INSTALLATION
INSTRUCTION
CONTENTS
GENERAL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
GENERAL DATA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
DIMENSIONAL DATA . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
WATER PIPING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
DUCTWORK . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
EVAPORATOR BLOWER DISCHARGE
CONVERSION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
ELECTRICAL WIRING . . . . . . . . . . . . . . . . . . . . . . . . . 12
MOTOR AND PULLEY DATA . . . . . . . . . . . . . . . . . . . . 16
MAINTENANCE/SERVICE . . . . . . . . . . . . . . . . . . . . . . 19
CAUTION:
READ ALL SAFETY GUIDES BEFORE YOU
START TO INSTALL THE UNIT.
SAVE THIS MANUAL
WATER COOLED AIR
CONDITIONING UNITS
MODELS: CU060 - 096 - 120 -180
240 - 300
036-33072-001 Rev. A (0601)
®

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  • Page 1 DIMENSIONAL DATA ......6 MODELS: CU060 - 096 - 120 -180 WATER PIPING ....... . 8 240 - 300 DUCTWORK .

  • Page 2: Table Of Contents

    AYOUT HOWN CU060/CU096/CU120 ......6 IMENSIONS CU180 ........7 IMENSIONS CU240/CU300 .

  • Page 3: General

    036-33072-001 Rev. A (0601) re-setable lock-out relay will shut off the compressor in the GENERAL event of pressure switch trip during operation. Control circuit operates on 24V, and features an oversized transformer. Optional anti-short circuit timers can be field/factory installed. Our units are designed to accommodate the ever-changing installation requirements of today's market.

  • Page 4: Installation

    036-33072-001 Rev. A (0601) FIGURE 1: TYPICAL INSTALLATION LAYOUT (CU180 SHOWN) INSTALLATION WARNING PRE-INSTALLATION INSPECTION OF EQUIPMENT PRIOR TO MOUNTING UNIT, CHECK INDIVID- All units are factory tested to ensure safe operation and qual- UAL UNIT WEIGHTS AND VERIFY LIFTING ity assembly.

  • Page 5: Unit Mounting

    Common vibration and sound levels associated with commercial equipment may be objectionable to people or equipment. Install thermostats, air supplies and returns so that each unit will operate only on individual unit control. TABLE 1: GENERAL UNIT INFORMATION Model CU060 CU096 CU120 CU180 CU240 CU300...

  • Page 6: Dimensional Data

    036-33072-001 Rev. A (0601) DIMENSIONAL DATA FIGURE 2 : DIMENSIONS CU060/CU096/CU120 Unitary Products Group...

  • Page 7: Imensions Cu180

    036-33072-001 Rev. A (0601) FIGURE 3 : DIMENSIONS CU180 Unitary Products Group...

  • Page 8: Water Piping

    036-33072-001 Rev. A (0601) FIGURE 4 : DIMENSIONS CU240/CU300 WATER PIPING Water piping should include shutoff/balancing valves so that All factory installed water piping terminates inside the unit. the unit can be serviced without shutting down and draining Multi-condenser units feature manifolded single water in and the entire water supply circuit.

  • Page 9: Condensor Pressure Control

    036-33072-001 Rev. A (0601) mains water is being used, make sure the valve closes soon CONDENSOR PRESSURE CONTROL after the compressor stops. If the flow does not stop after a few minutes, raise the opening pressure by turning the Water regulating valves provide control of the quantity of con- adjusting shaft caunter clockwise until the flow stops.

  • Page 10: Aterside Pressure Drop Tandard Unit - Manifolded Condensers )

    036-33072-001 Rev. A (0601) FIGURE 5: WATERSIDE PRESSURE DROP (STANDARD UNIT - MANIFOLDED CONDENSERS) Unitary Products Group...

  • Page 11: Ductwork

    036-33072-001 Rev. A (0601) DUCTWORK return is desired, duct connection flanges may be secured When installing ductwork, adhere to local Codes and sensible directly to the air intake opening of the 5 through 15 ton units practice. Minimize duct runs and avoid abrupt changes in -filters are accessible from the right hand side.

  • Page 12: Evaporator Blower Discharge Conversion

    036-33072-001 Rev. A (0601) EVAPORATOR BLOWER DISCHARGE CONVERSION WARNING All models can be field converted to the alternate evaporator DISCONNECT AND LOCK OUT POWER WHEN discharge orientation. All models ship with vertical fan dis- SERVICING UNIT. FAILURE TO DO SO MAY charge as standard.
  • Page 13 036-33072-001 Rev. A (0601) Unit requires installer to provide a 24volt thermostat with The CU6300 -25 ton models feature three independent com- appropriate heating and cooling stages as needed. For low pressor stages. A multi-stage commercial thermostat (ie. voltage wiring, 18 gauge wire may be used for up to 50 feet Honeywell T7300 series), or other type of multi-step control- lengths.

  • Page 14: Electrical Data Standard Motors Electrical Data - Oversize Motors

    036-33072-001 Rev. A (0601) TABLE 2: ELECTRICAL DATA - STANDARD MOTORS MODEL VOLTAGE COMPRESSOR EVAPORATOR MIN. CCT. MAX. FUSE/ AMPACITY CCT. BKR. AMP 208-230/3/60 19.3 123.0 1.00 1800 27.23 CU060A 460/3/60 49.5 1.00 1800 10.98 575/3/60 40.0 1.00 1800 9.30 208-230/3/60 13.9 88.0...

  • Page 15: Supply Air Blower Performance

    TABLE 1: SUPPLY AIR BLOWER PERFORMANCE EXTERNAL STATIC PRESSURE - Inches W. C. MODEL SUPPLY 1800 0.46 0.53 0.60 1019 0.68 1090 0.76 1159 0.85 1193 0.89 1259 0.98 1321 1.07 1380 1.16 1437 1.25 1492 1.35 1544 1.44 CU060A 2000 0.60 0.69...

  • Page 16: Motor And Pulley Data

    Model Drive Range Motor Adjustable Fixed Blower Belts (RPM) Motor Pulley Pulley Pitch Frame Eff. Designation Qty. Pitch Dia. (in.) Dia. (in.) Size CU060 843-1167 1800 82.5 2.4-3.4 4L-330 CU096 632-875 1-1/2 1800 84.0 2.4-3.4 4L-410 CU120 659-913 1800 84.0 2.4-3.4...

  • Page 17: Oversize Blower Motor And Drive Data Refrigerant Charges

    036-33072-001 Rev. A (0601) There is no negative impact on durability caused by operating TABLE 6: REFRIGERANT CHARGES three pase Scroll compressors in the reversed direction for a Ref. Charge short period of time (under one hour). However, after several No.

  • Page 18: Typical Wiring Diagram; 208-230V/3Ph/60 Hz

    036-33072-001 Rev. A (0601) FIGURE 7 : TYPICAL WIRING DIAGRAM; 208-230V/3PH/60 HZ Unitary Products Group...

  • Page 19: Maintenance/Service

    036-33072-001 Rev. A (0601) MAINTENANCE/SERVICE EVAPORATOR AND CONDENSER COILS Inspect the evaporator coil at filter change intervals. Inspect the condenser coil at least semi-annually. A dirty condenser CAUTION coil will result in elevated condensing pressures and poor unit performance. Dirty or clogged evaporator coils causes low suction pressure and lost capacity.
  • Page 20 Subject to change without notice. Printed in U.S.A. 036-33072-001 Rev. A (0601) Copyright © by Unitary Products Group 2000. All rights reserved. Supersedes: Nothing Unitary 5005 Norman Product York Group Drive 73069...

This manual is also suitable for:

Cu120Cu096Cu180Cu240Cu300

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