McQuay SWP 018 Manual
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McQuay SWP 018 Manual

Self-contained air conditioning system
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Catalog
860-6
Self-Contained Air Conditioning System
Type SWP 018 through 105
Capacity: 20 to 125 ton
MEA
342-99-E

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Summary of Contents for McQuay SWP 018

  • Page 1 Catalog 860-6 Self-Contained Air Conditioning System Type SWP 018 through 105 Capacity: 20 to 125 ton 342-99-E...

  • Page 2: Table Of Contents

    Control Temperature ........16 McQuay and MicroTech II are registered trademarks of McQuay International. Protocol Selectability is a trademark of McQuay International.

  • Page 3: Introduction

    Introduction Continued Leadership in System Designs McQuay SWP Self-Contained air conditioning systems trace their history to the late 1970s and the pioneering concepts of Agency Listed Blazer Industries. Working closely with the consulting engineer to solve special system and space challenges, Blazer...

  • Page 4: Mcquay Self-Contained Vav Systems

    McQuay Self-Contained VAV Systems System performance provides tenant comfort and Figure 1: McQuay self-contained VAV systems operating economy Since the introduction of self-contained systems in the late 1970s, the industry has seen this concept grow into one of the most widely specified systems for new office buildings, for retrofitting existing structures, and for institutional, industrial, and other specialized applications.

  • Page 5: Design Features

    McQuay Self-Contained VAV Systems Design Features compressor suction and discharge valves include unions to allow compressors to be replaced without any cutting or brazing. Cabinet, Casing, and Frame Individual current-sensing, and temperature-sensing overloads For vibration control and rigging strength, the SWP unit base are provided for each compressor.

  • Page 6: Cooling Coil Section

    McQuay Self-Contained VAV Systems reusable O-ring gaskets. Main interconnecting condenser MicroTech II control system sequences the electric heating water headers include vent and drain plugs and a large elements for operating economy. cleanout plug for removing debris dislodged during cleaning.

  • Page 7: Economizer Options

    Factory-supplied mixing boxes are available for airside event of drive service. economizer use using the McQuay Vision™ air handling unit MicroTech II controls provide advanced duct static pressure platform. control. Static pressure can be controlled by either single or Condenser Head Pressure Control two-duct static pressure sensors.

  • Page 8: Filter Section

    Protocol Selectability™ Feature configured at the factory prior to shipment. Field cutting of discharge openings is not required. All MicroTech II control systems have McQuay’s exclusive Protocol Selectability feature. MicroTech II control systems The plenum is constructed of prepainted galvanized steel.
  • Page 9 McQuay Self-Contained VAV Systems Auxiliary Control Options Condenser Water Flow Switch. A factory-installed water flow sensor is available to verify water flow status at each unit. Compressor operation is disabled and an alarm signal provided if condenser water flow is lost. Unit operation is restored when water flow is sensed again.

  • Page 10: System Flexibility With Unit Options

    More and more system engineers are designing optimal Heating Flexibility discharge air temperature systems to improve system performance and system first cost; the McQuay SWP provides A variety of heating media is offered with each SWP system. the flexibility to do it successfully. Optimal discharge air...

  • Page 11: Summary Of Available Options

    System Flexibility with Unit Options Summary of Available Options McQuay MicroTech II Multiple Air Handler Control (MAC) • Over 130 different compressor/coil capacity selections • Multiple control options: VAV, CV, 100% OA, The MicroTech II Multiple Air Handler Control (MAC)

  • Page 12: Refrigerant R-407C

    Benefits Refrigerant R-407C • For pennies a day, UVGI can improve IAQ by destroying McQuay SWP units with independent refrigerant circuits are mold, fungi, and bacteria on coil and drain pan surfaces. available with non-ozone depleting R-407C refrigerant. R-407C • Clean coil surfaces maintain peak heat transfer for “near refrigerant is better for the environment than R-22 (see the note new”...

  • Page 13: Microtech Ii Unit Controller

    MicroTech II Unit Controller Components Designed with the system operator in mind, McQuay SWP systems continue to provide industry leading performance, Each SWP self-contained system is equipped with a complete featuring the microprocessor-based MicroTech II MicroTech II unit control system that is pre-engineered, Self-Contained System Unit Control system.

  • Page 14: Keypad/Display

    When enabled, the remote set point adjustment is setup features (see following). All zone sensors are field available even if the return temperature is selected to be the installed with field wiring terminated at a separate, clearly Control Temperature. marked terminal strip. McQuay Cat 860-6...

  • Page 15: Auto/Manual Operation Selection

    All unit controllers include an internal changeover strategy that can be selected at the keypad. When this method is selected, the controller compares the outdoor air dry-bulb temperature, provided by the optional outdoor air temperature McQuay Cat 860-6...

  • Page 16: Condenser Head Pressure Control

    • Proportional band cooling or heating condition. • Integral time VAV box output: Provides a means of interfacing the unit and the VAV box control. When the output is energized (closed), the • Derivative time McQuay Cat 860-6...

  • Page 17: Standard Control Options

    100% outdoor air applications. steam or hot water valves. The discharge temperature control strategies used with the hybrid DAC unit are identical to those used with the DAC unit. McQuay Cat 860-6...

  • Page 18: Compressor Staging

    Separate strategies can be selected for cooling and for control due to its inherent lag effect. McQuay Cat 860-6...

  • Page 19: Compressor Staging

    Control Temperature is outside the dead band. described in “McQuay MicroTech II Multiple Air Handler Staging is constrained by an inter-stage delay timer (5-minute Control (MAC)” on page 9.

  • Page 20: Alarm Management And Control

    MicroTech II unit controls for expanded diagnostic and service capability. The PC can be connected directly to the MicroTech II controller or used remotely with the addition of an optional unit-mounted phone modem. McQuay Cat 860-6...

  • Page 21: Application Considerations

    General Acoustical Considerations Units are intended for use in normal heating, ventilating, and air conditioning applications. Consult your local McQuay sales Good acoustical design is a critical part of any successful representative for installation and should start at the earliest stages in the design process.

  • Page 22: Equipment Room

    Costly field traps are not required. To allow periodic power data is available. Contact your local McQuay sales cleaning of the condensers and economizer coils, provide representative for sound power data for your specific application.

  • Page 23: Duct Static Pressure Sensor Placement

    Minimum airflow conditions are dependent pressure sensor in installations having multiple duct trunks or on fan selection criteria also. Contact your McQuay sales significantly varying zones. The control logic maintains static representative to answer questions on minimum airflow pressure at both sensors.

  • Page 24: Condenser Water Flow

    Terms of Sale tables (Table 8 on page 28) for condenser flow rates from 2 to All products are offered pursuant to McQuay’s standard terms 3 gpm/ton, using the appropriate leaving condenser water and conditions of sale including limited product warranty, temperature column (interpolation is allowed).

  • Page 25: Selection Procedure

    The McQuay SelectTools™ software selection program allows Minimum face area = cfm/maximum face velocity your local McQuay sales representative to provide you with a = 21,000 cfm/550 fpm fast, accurate, and complete selection of McQuay SWP units.

  • Page 26: Step 4: Heating Selection

    = 3.75" w.g. estimated as shown in the table below. Use the McQuay SelectTools™ computer selection program to obtain the exact Entering the fan curve for the SWP 065 at 21,000 cfm and R-407C performance.

  • Page 27: Physical Data

    Maximum GPM a. Based on ARI 340/360-93 standard rating conditions, 80/67°F to the coil, 85°F–95°F condenser water. b. Standard fan TSP limit is 5.5 inches of water. Consult your local McQuay sales representative for applications beyond this range. McQuay Cat 860-6...

  • Page 28: Unit Efficiency Ratings

    1. Based on ARI 340/360-93 standard rating conditions as well as the best DX coil and supply fan. 2. All two-circuit units are available also with four circuits. EER is virtually the same for both. Check with your sales representative for exact four-circuit EER. McQuay Cat 860-6...

  • Page 29: Correction Multipliers

    For 50 Hz applications, derate the total capacity by 0.89 and the sensible capacity by 0.94. Base the 50 Hz supply fan motor horsepower selections on fan brake horsepower (from Figure 23 through Figure 33) divided by 0.8. McQuay Cat 860-6...

  • Page 30: Performance Data

    Notes: See Table 7 on page 27 to determine unit capacity at other than nominal cfm. For a computer-generated, job-specific selection, contact your local McQuay sales representative. For 50 Hz applications, derate the total capacity by 0.89; derate the sensible capacity by 0.94.
  • Page 31 Notes: SeeTable 7 on page 27 to determine unit capacity at other than nominal cfm. For a computer-generated, job-specific selection, contact your local McQuay sales representative. For 50 Hz applications, derate the total capacity by 0.89; derate the sensible capacity by 0.94.
  • Page 32 Notes: See Table 7 on page 27 to determine unit capacity at other than nominal cfm. For a computer-generated, job-specific selection, contact your local McQuay sales representative. For 50 Hz applications, derate the total capacity by 0.89; derate the sensible capacity by 0.94.
  • Page 33 Notes: See Table 7 on page 27 to determine unit capacity at other than nominal cfm. For a computer-generated, job-specific selection, contact your local McQuay sales representative. For 50 Hz applications, derate the total capacity by 0.89; derate the sensible capacity by 0.94.
  • Page 34 Notes: See Table 7 on page 27 to determine unit capacity at other than nominal cfm. For a computer-generated, job-specific selection, contact your local McQuay sales representative. For 50 Hz applications, derate the total capacity by 0.89; derate the sensible capacity by 0.94.
  • Page 35 Notes: See Table 7 on page 27 to determine unit capacity at other than nominal cfm. For a computer-generated, job-specific selection, contact your local McQuay sales representative. For 50 Hz applications, derate the total capacity by 0.89; derate the sensible capacity by 0.94.
  • Page 36 Notes: See Table 7 on page 27 to determine unit capacity at other than nominal cfm. For a computer-generated, job-specific selection, contact your local McQuay sales representative. For 50 Hz applications, derate the total capacity by 0.89; derate the sensible capacity by 0.94.
  • Page 37 Notes: See Table 7 on page 27 to determine unit capacity at other than nominal cfm. For a computer-generated, job-specific selection, contact your local McQuay sales representative. For 50 Hz applications, derate the total capacity by 0.89; derate the sensible capacity by 0.94.

  • Page 38: Waterside Economizer Capacity

    Performance Data Waterside Economizer Capacity Table 9: SWP 018—6000 cfm TMBH SMBH 120.1 118.4 57.0 55.1 52.3 136.0 128.6 55.4 54.2 51.4 163.5 142.7 53.3 52.5 49.5 164.7 135.9 59.3 58.4 53.4 187.4 145.3 57.8 57.1 52.4 225.2 160.8 55.5 54.9...
  • Page 39 57.2 61.5 262.5 262.5 60.0 56.4 59.3 284.9 284.4 63.7 61.6 63.2 312.9 305.0 62.6 61.0 61.8 357.7 330.0 61.1 60.1 59.6 Note: See Table 6 on page 27 to determine capacity at other than nominal cfm. McQuay Cat 860-6...
  • Page 40 57.1 61.7 398.4 398.4 59.8 56.4 59.4 439.3 435.8 63.4 61.4 63.4 479.6 463.6 62.3 60.9 62.0 544.6 498.9 61.0 60.0 59.6 Note: See Table 6 on page 27 to determine capacity at other than nominal cfm. McQuay Cat 860-6...
  • Page 41 57.0 61.8 596.9 596.9 59.8 56.4 59.3 674.5 662.9 63.2 61.3 63.6 726.2 697.1 62.3 60.8 62.0 816.6 745.8 61.1 60.0 59.6 Note: See Table 6 on page 27 to determine capacity at other than nominal cfm. McQuay Cat 860-6...

  • Page 42: Heating Capacity Data

    37000 1419.9 155.4 95.1 Note: For complete one-row capacity and extended two-row capacity, contact your McQuay sales representative. Selections based on water, for glycol/water solutions, contact your McQuay sales representative. Electric Heat Table 22: Electric heat 208 V /60 Hz/ 3 PH...

  • Page 43: Component Pressure Drops

    All units must have a DX coil pressure drop. Use “Side” pressure drop data with double discharge configurations of “Front and Side,” “Back and Side,” or “Two Sides.” For discharge configuration of “Front and Back,” contact your local McQuay Representative for information. McQuay Cat 860-6...
  • Page 44 All units must have a DX coil pressure drop. Use “Side” pressure drop data with double discharge configurations of “Front and Side,” “Back and Side,” or “Two Sides.” For discharge configuration of “Front and Back,” contact your local McQuay Representative for information. McQuay Cat 860-6...
  • Page 45 150 200 250 300 400 Condenser Flow Rate (gpm) Condenser flow rate (gpm) Notes: Includes coil, Control valves, and interconnecting piping. Add this ΔP to condenser ΔP to obtain unit ΔP for pump Note: HP = Total unit compressor horsepower. selection. McQuay Cat 860-6...
  • Page 46 Figure 20: Hot water coil water pressure drop (1-row), SWP Figure 21: Hot water coil water pressure drop (1-row), SWP 018 to 040 045 to 105 Water flow rate (GPM) Water flow rate (gpm) Figure 22: Water regulating valve pressure drop Condenser flow rate (gpm) McQuay Cat 860-6...

  • Page 47: Fan Curves

    Figure 23: SWP 018, 15" × 15" forward curved fan Note: Do not select an operating point in the shaded areas. Fan TSP limit is 5.5" of water. Consult your local McQuay sales representative for applications beyond this range. Figure 24: SWP 023/028, 18" × 18" forward curved fan Note: Do not select an operating point in the shaded areas.
  • Page 48 Figure 25: SWP 035/040, 20" × 20" forward curved fan Note: Do not select an operating point in the shaded areas. Fan TSP limit is 5.5" of water. Consult your local McQuay sales representative for applications beyond this range. Figure 26: SWP 035/040, 20" airfoil fan...
  • Page 49 Figure 27: SWP 045, 22" × 22" forward curved fan Note: Do not select an operating point in the shaded areas. Fan TSP limit is 5.5" of water. Consult your local McQuay sales representative for applications beyond this range. Figure 28: SWP 045, 22" airfoil fan...
  • Page 50 Figure 29: SWP 055/065/070, 25" × 25" forward curved fan Note: Do not select an operating point in the shaded areas. Fan TSP limit is 5.5" of water. Consult your local McQuay sales representative for applications beyond this range. Figure 30: SWP 055/065/075, 25" airfoil fan...
  • Page 51 Figure 31: SWP 080/095, 27" × 27" forward curved fan Note: Do not select an operating point in the shaded areas. Fan TSP limit is 5.5" of water. Consult your local McQuay sales representative for applications beyond this range. Figure 32: SWP 080/090, 27" airfoil fan...
  • Page 52 12000 16000 20000 24000 28000 32000 36000 40000 Note: Do not select an operating point in the shaded areas. Fan TSP limit is 5.5" of water. Consult your local McQuay sales representative for applications beyond this range. McQuay Cat 860-6...

  • Page 53: Dimensional Data

    10.8 10.8 10.8 11.75 a. Dimensions do not include lifting lugs, handle, latch, or fastener extensions. b. For shipping dimensions, add 4" (102 mm) to depth, 8" (204 mm) to length, and 4" (102 mm) to height. McQuay Cat 860-6...
  • Page 54 Please indicate on the unit submittal. Figure 37: Front elevation Disconnect AFD (optional) switch (optional) MicroTech II panel Power entry 7/8" pilot K.O. Electrical access 76" Mechanical access Notes: Unit sizes 018, 023, and 028 have a single mechanical access panel. McQuay Cat 860-6...
  • Page 55 1 1/8" ODS drain 44.5" (N) Water out 38.5" (N) Water in Lifting lug 1" typ. Notes: Service connections determined when facing the front of the unit. Left-hand standard, right-hand optional. Please indicate on the unit submittal. McQuay Cat 860-6...

  • Page 56: Recommended Clearances

    035 to 040 29,35,41 045 to 065 29,35,41 29,35,41 29,35,41 095 to 105 Note: Standard plenum height is 29”. Consult your local McQuay Sales representative for details. Height Height Table 25: Discharge plenum duct openings H—heights of available Unit size A—front/back available lengths (in)

  • Page 57: Electrical Data

    62.0 49.2 Premium efficiency 137.0 120.0 60.0 60.0 47.5 High efficiency 154.0 144.0 72.0 72.0 57.4 Premium efficiency 160.0 140.0 70.0 70.0 56.0 a. 460/60/3 motors are used. Derate nameplate horsepower to 0.83 to obtain actual horsepower. McQuay Cat 860-6...
  • Page 58 230 V/60 HZ/3 PH 400 V/50 Hz/3 PH 460 V/60 Hz/3 PH 575 V/60 Hz/3 PH SWP unit size 018 to 040 27.8 77.2 85.6 25.7 37.2 42.8 34.2 045 to 105 55.6 154.4 170.9 51.4 74.4 85.6 68.4 McQuay Cat 860-6...

  • Page 59: Supply Power Wiring

    MCA = 1.25 (electric heat FLA + supply fan motor FLA) + 2 amps Size wires in accordance with Table 310-16 or 310-19 of the National Electrical Code. Note – Use copper wire only. Size wires for a maximum of 3% voltage drop. McQuay Cat 860-6...

  • Page 60: Unit Weights

    1269 1346 1346 a. Base weight includes supply fan without motor. Add about 100 lbs. for airfoil fans. b. Water economizer weight includes valves and piping. c. The values in this table do not include water weight. McQuay Cat 860-6...
  • Page 61 2260 2260 (3) 15 hp, (3) 20 hp — — — — — — — — — — — 2419 Table 33: Variable frequency drive weight (lbs) Variable frequency drive size (hp) Voltage 208/230V — — 380/460V McQuay Cat 860-6...

  • Page 62: Engineering Guide Specifications

    The unit shall incorporate removable access panels tightly set on Furnish and install, as shown on plans, McQuay model SWP neoprene gaskets. Access panels shall be a minimum of 18- self-contained packaged air conditioning system(s). Unit...

  • Page 63: Supply Fan

    Economizer operation shall be controlled to maximize free provides for proper alignment and belt tension adjustment. cooling operation. Economizer shall be enabled whenever the Variable frequency drives (SWP 018 to 105E) remote [outside air enthalpy sensor] [comparative enthalpy sensors] [outside air temperature sensor] indicates that outside An electronic variable frequency drive shall be provided for air is suitable for free cooling.

  • Page 64: Heating Coil

    Sight-glasses shall be accessible for viewing without disrupting unit operation. McQuay Cat 860-6...

  • Page 65: Refrigeration Capacity Control

    [economizer] [heating] [economizer and heating] valve will be also be provided. driven to the full open position and an alarm signal will be McQuay Cat 860-6...

  • Page 66: Uv Lights

    [with navigation and access to all control functions. All control single-stage morning warm-up heat] (DAC)] [variable air settings shall be password protected against unauthorized volume, cooling/modulating heating discharge temperature changes. McQuay Cat 860-6...
  • Page 67 High supply air temperature Individual compressor Low supply air temperature Heating High return air temperature Lockout control Economizer Compressor lockout Tenant override Heat lockout Dehumidification Lead-lag on compressors Auto Disabled Compressor Inter-stage timers Night setback and setup space temp. McQuay Cat 860-6...

  • Page 68: Open Protocol Communications

    [BACnet/IP] [BACnet MS/TP] [LonTalk] communications connection. [BACnet Communications shall conform to the BACnet protocol (ANSI/ASHRAE135-2001). A protocol implementation conformance statement (PICS) shall be provided. Multiple units may be connected in a common communications network.] McQuay Cat 860-6...
  • Page 69 McQuay Cat 860-6...
  • Page 70 McQuay Cat 860-6...
  • Page 72 McQuay Training and Development Now that you have made an investment in modern, efficient McQuay equipment, its care should be a high priority. For training information on all McQuay HVAC products, please visit us at www.mcquay.com and click on training, or call 540-248-9646 and ask for the Training Department.

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