McQuay WMC-B 145S Installation Manual
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McQuay WMC-B 145S Installation Manual

Centrifugal chillers. reassembly of knockdown shipments
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WSC and WMC-B Centrifugal Chillers
Reassembly of Knockdown Shipments
EVAPORATOR
Installation Manual
COMPRESSOR
SUPPORT
STARTER
OIL PUMP
UNIT
CONTROLLER
CONDENSER
IM 1128-2
Group: Chiller
Part Number: 331375601
Effective: July 2015
Supersedes: June 2013
REV: 02

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Summary of Contents for McQuay WMC-B 145S

  • Page 1 Installation Manual IM 1128-2 Group: Chiller Part Number: 331375601 REV: 02 Effective: July 2015 Supersedes: June 2013 WSC and WMC-B Centrifugal Chillers Reassembly of Knockdown Shipments COMPRESSOR STARTER OIL PUMP UNIT CONTROLLER EVAPORATOR SUPPORT CONDENSER...

  • Page 2: Table Of Contents

    Cautions indicate potentially hazardous situations, which can result in personal injury or equipment damage if not avoided. ©2015 McQuay International. Illustrations and data cover the McQuay International product at the time of publication and we reserve the right to make changes in design and construction at anytime without notice.

  • Page 3: Wsc Chiller Introduction

    9. All free piping ends will be capped. 10. Touch-up paint will be included. 11. The unit will undergo the rigorous, full McQuay International test program at the factory. 12. Contact local your service representative for McQuay International for pricing and scheduling of required installation supervision.
  • Page 4 16. The control panels are shipped separately but have all sensors wired in, labeled and tied up. Matching labels will exist at the sensor connection on the unit. 17. Contact your service representative for McQuay International for pricing and scheduling of required installation supervision.

  • Page 5: Type I Reassembly

    Type I Reassembly Description TYPE I: The compressor with its terminal box is removed and placed on a skid as a separate package. The suction piping is removed and shipped loose. All other piping will be disconnected from the compressor and remain attached to the vessel stack, where possible. Wiring and sensors to the compressor will be disconnected, rolled up and tied to the control panels.
  • Page 6 4. Install the liquid injection line (see Figure 4). The liquid injection line is attached to the condenser and has shipping straps securing it to the evaporator and condenser. It, and the compressor, each have a block-off. Note that any given injection line may be configured somewhat differently than shown on the drawing.
  • Page 7 8. Figure 6) using the same procedure as the liquid injection line. 9. Piping for the optional hot gas bypass is shipped mounted on the unit except for models WSC100, WSC113 and WSC126 with vessel stacks sizes E36C30, E36C36, E42C36, E42C42, E48C42 and E48C48.
  • Page 8 Figure 1, WSC 063 - 087 Compressor Connections LIQUID INJECTION FROM COND. BTM. MOTOR COOLING MOTOR COOLING OIL LINE VENT FROM COND. BTM. REFRIGERANT OIL THRUST RETURN FROM TOP FRONT FROM COND. BTM TO OIL LINE TEE OF OIL PUMP 4-WAY SOLENOID VALVE LEFT VIEW 15"...
  • Page 9 Figure 2, WSC 100-126 Compressor Connections OIL OUT TO SA AND SB SOLENOID VALVES AND OIL SUPPLY OIL PRESSURE TRANSDUCER TO OIL COOLER UNSWEAT LINE AND SHUT VALVE MOTOR COOLING OIL THRUST FROM CONDENSER OIL VENT RETURN TO MOTOR COOLING BOTTOM FROM TOP FRT.
  • Page 10 Figure 3, Suction and Discharge Piping TYPES I & II INSTALL SUCTION PIPING TYPES I & II VICTAULIC BLOCKOFF PLATE TYPES II & III UNITS RECEIVE SLIP-ON ASME FLANGES TYPE II BOLT-ON BLOCKOFF PLATE TYPES I & II EVAPORATOR AND CONDENSER ARE EVACUATED AND CHARGED WITH 30 PSI OF HELIUM.
  • Page 11 Figure 4, Liquid Injection Lines MECHANICAL BREAK POINT MECHANICAL BREAK POINT TYPE I TYPE I BLOCKOFF BLOCKOFF LIQUID INJECTION LINES (NOT ALL VARIATIONS SHOWN) R331311303C0100 NOTE: The liquid injection line (above) and the motor cooling line (below) are attached to the condenser and have shipping straps securing them to the evaporator and condenser.
  • Page 12 Figure 6, Motor Drain Line MOTOR HOUSING DRAIN LINE MECHANICAL BREAK POINT MOTOR DRAIN LINE (NOT ALL VARIATIONS SHOWN) 20" MOTOR REF. DRAIN 15" MOTOR REF. DRAIN CONNECTION CONNECTION (REAR VIEW) R331311305C0100 (REAR VIEW) IM 1128-2...
  • Page 13 Figure 7, Optional Hot Gas Bypass Piping CONNECTION TO DISCHARGE NOZZLE MECHANICAL BREAK POINTS FLOW HOT GAS HOT GAS BYPASS BYPASS LINE PILOT LINE NOTE: THIS LINE IS NOT ALWAYS PRESENT. SOME UNITS HAVE ELECTRONIC VALVES. FLOW SHUT OFF VALVE MECHANICAL BREAK POINT MECHANICAL...
  • Page 14 Figure 9, Electrical and Sensors, Compressor Control Box and Connections OIL PUMP HEATERS COMPRESSOR HEATERS 2nd TERMINAL BOX JUNCTION BOX ON COMPRESSOR USED ON SELECTED MOUNTING BRACKET NEAR THE MOTORS. SUCTION PIPE. NUMBER OF HEATERS MAY VARY GUARDISTOR DUE TO COMPRESSOR SIZE. (ON COMPRESSOR) JUNCTION BOX NOT ON ALL UNITS.

  • Page 15: Type Ii Reassembly

    Type II Reassembly Description TYPE II: The compressor with its terminal box is removed and shipped on a skid. The condenser, evaporator, oil sump, oil cooler and tube sheet support plates will remain connected only by their attachment bolts, ready for field disassembly on site and subsequent reassembly in the building. All wiring and piping that interconnects the components will have been removed and will require reinstallation.
  • Page 16 Disassemble the unit to the extent required by the site conditions. Rig the components to their final location and reassemble them using the fasteners that came with the unit. The compressor and its suction and discharge piping should be installed on the stack before any other lines are attached.
  • Page 17 Figure 18 Unit panel wiring and connections ......Figure 15 Unit panel detail ............ IM 1128-2...
  • Page 18 Figure 19 Unit panel sensor locations ........Figure 16 and Figure 17 Flow switch wiring detail ........Figure 20 If the unit has been ordered with a starter or VFD as unit mounted, brackets for mounting it and interconnection cables to the compressor motor will be included as ship loose items. Control wiring as shown in Figure 9 will also be required.
  • Page 19 Figure 12, 16 Inch Oil Sump / Oil Cooler Assembly PLUG OIL VENT LINE PLUG FLOW OIL DRAIN LINE THRUST RETURN OIL LINE OIL SUPPLY TO VALVE ON COMP. SUPPLY COOLER WATER RETURN WATER SUPPLY DUE TO DIFFERENT PIPE ROUTINGS SOME OR ALL PIPING SHOWN MAY BE SHIPPED LOOSE R331311302C0100...
  • Page 20 Figure 13, Typical Field Connection Diagram, WSC Unit MICROTECH CONTROL BOX TERMINALS (115V) (24V) POWER * NOTE 7 NEUTRAL * NOTE 10 * COOLING TOWER FOURTH STAGE STARTER * NOTE 10 * COOLING TOWER THIRD STAGE STARTER * NOTE 10 * COOLING TOWER SECOND...
  • Page 21 Figure 14, Compressor Control Panel Electrical and Sensor Connections OIL PUMP HEATERS COMPRESSOR HEATERS 2nd TERMINAL BOX JUNCTION BOX ON COMPRESSOR USED ON SELECTED MOUNTING BRACKET NEAR THE MOTORS. SUCTION PIPE. GUARDISTOR NUMBER OF HEATERS MAY VARY DUE TO COMPRESSOR SIZE. (ON COMPRESSOR) JUNCTION BOX NOT ON ALL UNITS.
  • Page 22 Figure 15, Unit Controller Electrical and Sensor Connections REFERENCE THE UNIT CONTROLLER SCHEMATIC FOR DETAILED WIRING CONNECTIONS WATER PUMPS (FIELD INSTALLED) TYPE II KNOCKDOWN ONLY TOWER STAGING (FIELD INSTALLED) ALARMS (FIELD INSTALLED) POWER (FIELD INSTALLED) UNIT CONTROL BOX EF BLACK EF &...
  • Page 23 Figure 16, Unit Electrical and Sensor Locations SEE DETAIL B CS06 SEE DETAIL A CS07 CS01 CS08 FIELD OPTION SEE DETAIL D US02 DETAIL D CS10 US10 & US04 SEE DETAIL D US09 & US03 CS04 SEE DETAIL D SEE DETAIL E US05 REAR VIEW SHOWN WITH PILOT OPERATED EXPANSION VALVE SEE DETAIL C...
  • Page 24 Figure 17, Unit Sensor Location Details US02 US03 US04 CS10 CS01 CS09 US09 US10 VALVE CORE MUST BE IN CONNECTION. DETAIL "A" DETAIL "C" DETAIL "D" PLACE CS05 ONLY UNIT CONTROL SENSORS SENSOR DESCRIPTION NUMBER US02 EVAP. ENTERING WATER TEMP. US05 US03 COND.
  • Page 25 Figure 18, Compressor Control Box IM 1128-2...
  • Page 26 Figure 19, Unit Control Box IM 1128-2...
  • Page 27 Figure 20, Flow Switch Wiring IM 1128-2...

  • Page 28: Unit Photographs

    Unit Photographs Figure 21, WSC 087, Photo Figure 22, WSC 100, Photo IM 1128-2...
  • Page 29 Figure 23, WSC 126, Photo IM 1128-2...

  • Page 30: Type Iii Reassembly

    Type III Reassembly Description TYPE III: The unit ships fully assembled and is field ready to knockdown. Included are the vessel bolt-on connection brackets, the discharge stack bolt-on flanges at the condenser and the bolt-on oil pump assembly. The unit is shipped fully charged with refrigerant and lubricant. The unit will be factory insulated and painted.

  • Page 31: Field Insulation Guide

    Field Insulation Guide Figure 24, Insulation Requirements IM 1128-2...
  • Page 32 IM 1128-2...

  • Page 33: Dimensions And Weights

    NOTE: The height dimension shown in Table 1 for “Chiller w/o Compressor” is to the top of the control panel. Further height reduction can be achieved by removing the panel. Consult the local McQuay International sales office for details.
  • Page 34 6000 (2724) Notes: The overall vessel length can vary depending on the specified tube length and pass arrangement. Consult the McQuay International certified submittal drawings, or unit dimensions in Catalog WSCWDC-4 for specific vessel lengths. Allow plus / minus 1 inch (24.5mm) for factory manufacturing tolerance.
  • Page 35 Type II The following tables give the dimensions and weights of the various components as shipped. Table 2, Type II Dimensions & Weights Front & Front & Unit Cond. Cond. Back Back Evaporator Evaporator Compressor Compressor Vessel Code Size Width Height Support Support...
  • Page 36 Type II Dimensions & Weights, Continued Front & Front & Unit Cond. Back Back Evaporator Evaporator Compressor Compressor Vessel Code Cond. Height Size Width Support Support Width Height Width Height Width Height 39.2 35.9 43.6 25.1 E2609 / C2209 30.5 (775.2) 36.8 (933.5) 8.0 (203.2) 20.6 (522.0) (996.7) (912.6)
  • Page 37 (800.1) Notes: The overall vessel length can vary depending on the specified tube length and pass arrangement. Consult the McQuay International certified submittal drawings, or unit dimensions in Catalog WSCWDC-4 for specific vessel lengths. Allow plus / minus 1 inch (24.5mm) for factory manufacturing tolerance.
  • Page 38 Type II Dimensions & Weights, Continued Unit Oil Pump Oil Pump Condenser Evaporator Compressor Unit Shipping Vessel Code Size Width Height Weight Weight Weight Weight E2009 / C1809 20.8 (528.1) 30.6 (778.0) 1835 (831) 2543 (1152) 3200 (1440) 9612 (4360) E2209 / C2009 20.8 (528.1) 30.6 (778.0)
  • Page 39 36216 (16427) Notes: The overall vessel length can vary depending on the specified tube length and pass arrangement. Consult the McQuay International certified submittal drawings, or unit dimensions in Catalog WSCWDC-4 for specific vessel lengths. The oil pump width is the dimension from front to back. The height is from the bottom of the sump to the top of the piping connections.

  • Page 40: Shipping Lists

    CHECK VALVE DWG. MISCELLANEOUS TOUCH UP SPRAY PAINT 073244408 CANS 001358000 WIRE TIES 070183501 WIRE TIE STICK-ON MOUNTS McQuay LONMARK LABEL BAG LITERATURE AND SCHEMATIC IN MANILLA ENVELOPE STARTER SHROUD IF PRESENT IF UNIT STARTER BRACKETS MOUNTED TERMINAL SHROUD IF PRESENT...
  • Page 41 LOOSE FACTORY LABEL DESCRIPTION PARTS FROM - TO REF. DWG. NOTES QTY. COMPRESSOR INSULATION O-RINGS AND GASKETS IN PLASTIC BAG SEE BOM FOR 735030433 OIL CONTAINERS (5 GAL. EA.) QUANTITY 000986000 INSULATION GLUE (1 GAL.) 074646106 PRESSTITE THERMAL MASTIC 070217402 V-740 THERMAL COMPOUND KNOCKDOWN REFERENCE DWG.
  • Page 42 MISCELLANEOUS PART NO. TOUCH- UP SPRAY PAINT 073244408 CANS 001358000 WIRE TIES 070183501 WIRE TIE STICK-ON MOUNTS McQuay LONMARK LABEL BAG LITERATURE AND SCHEMATIC IN MANILLA ENVELOPE STARTER SHROUD IF PRESENT IF UNIT STARTER BRACKETS MOUNTED TERMINAL SHROUD IF PRESENT...
  • Page 43 QTY. MISCELLANEOUS PART NO. TOUCH-UP SPRAY PAINT 073244408 CANS 001358000 WIRE TIES 070183501 WIRE TIE STICK-ON MOUNTS McQuay LONMARK LABEL BAG LITERATURE AND SCHEMATIC IN MANILLA ENVELOPE IF UNIT MOUNTED & STARTER BRACKETS SHIPPED LOOSE ISOLATOR PADS OPERATOR INTERFACE PANEL...

  • Page 44: Wmc-B Introduction

    It is estimated that fifty percent of retrofit applications require partial or complete disassembly of the chiller. McQuay International offers two solutions to the disassembly and reassembly effort on WMC chillers. NOTE: A service representative for McQuay International must be in attendance during knockdown and reassembly.

  • Page 45: Type Iv Disassembly-Reassembly

    Type IV Disassembly-Reassembly Disassembly Type IV Knockdown units are shipped disassembled except for the vessel stack and are shipped less refrigerant, If the stack size or weight dictates further disassembly, the vessels can be separated by disconnecting any interconnecting wiring and tubing and then unbolting them. The vessels and compressors have a helium holding charge that must be released prior to attempting to open any connection.
  • Page 46 Table 7, Component Weight Evaporator Condenser Power Panel WMC-B Control Compressor (Front End Model Panel Model Weight Model Weight Box) 145S E2209 2490 C2009 2142 145D E2209 2490 C2009 2142 150D E2212 2857 C2012 2615 250D E2609 3259 C2209 2392 290D E2612 3812...
  • Page 47 Figure 25, Type IV, Compressor Block Offs Figure 26, Type IV, Parts in Crates, WMC 145S (Single Compressor), IM 1128-2...
  • Page 48 Figure 27, Type IV, Parts in Crates, (Dual Compressor) NOTES: See previous page for WMC 145S crate Crate 2 will have two sets of suction and discharge lines. IM 1128-2...
  • Page 49 Figure 28, Type IV, Bare Vessel Stack Figure 29, Part Load Bypass Valve (PLBV) Evaporator This part stays with Flange This part stays discharge line Connection on evaporator PLBV Liquid line connection Condenser The drawing shows the PLBV piping for one circuit. IM 1128-2...
  • Page 50 Figure 30, Type IV, Suction and Discharge Line Removal Suction Line (2) Discharge Line (2) Figure 31, Type IV, Motor Cooling Line Removal IM 1128-2...
  • Page 51 Figure 32, Type IV, Liquid Line Removal Figure 33, Type V, Liquid line Removal IM 1128-2...
  • Page 52 Figure 34, Type V, Vessel Separation IM 1128-2...
  • Page 53 McQuay Training and Development Now that you have made an investment in modern, efficient McQuay International equipment, its care should be a high priority. For training information on all McQuay International HVAC products, please visit us at www.daikinapplied.com and click on Training, or call 540-248-9646 to speak to the Training Department.

This manual is also suitable for:

Wmc-b 145dWmc-b 290dWmc-b 400dWsc 087Wsc 100Wsc 113 ... Show all

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