Magnitude® Magnetic Bearing Centrifugal Chillers Model WMC C Vintage 145 to 400 Tons (500 to 1400 kW) HFC-134a Refrigerant Catalog 602-4
Table of Contents Table of Contents Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 Refrigeration Diagram . . . . . . . . . . . . . . . . . . . . . . . . 12 Technology That Just Makes Sense . . . . . . . . . . . . . 3 Application Considerations . . . . . . . . . . . . . . . . . . . 13 Features and Benefits Summary . . . . . . . . . . . . . . . . 3 Location Requirements . . . . . . . . . . . .
Introduction Introduction Magnitude® Magnetic Bearing Chillers WME0700S WME0500S WMC400D WMC290D Model WME 500 - 700 WMC250D WMC150D WMC145D WMC145S 100 200 Model WMC 145 - 400 300 400 500 600 700 Technology That Just Makes Sense Features and Benefits Summary The industry’s next generation of centrifugal chillers is here today with Daikin Magnitude® chillers.
Features and Benefits Features and Benefits The Compressor Technology Model WMC’s exceptional efficiency and reliability is due to its cutting-edge magnetic bearing compressor technology. A digitally-controlled magnetic bearing system replaces conventional oil lubricated bearings and a direct drive motor eliminates the need for a lubricated gear box. The compressor shaft, shown in Figure 1, levitates on a magnetic cushion and is the compressor’s only major moving component.
Features and Benefits The Control Technology Additional Compressor Design Benefits Model WMC’s magnetic bearing compressor design offers many benefits not only because of its oil free design but also because of its use of a positive pressure refrigerant and a variable frequency drive. It is only fitting that this revolutionary chiller design be matched with the advanced control technology to give you the ultimate chiller performance.
Features and Benefits Figure 2: Operator Interface Trend History Screen Open Choices™ BAS Flexibility The exclusive Open Choices™ feature provides seamless integration and comprehensive monitoring, control, and two-way data exchange using industry standard protocols LonTalk®, BACnet ® or Modbus®. Open Choices™ offers simple and inexpensive flexibility to use the Building Automation System (BAS) of your choice without an expensive gateway panel.
Features and Benefits Compliance with ASHRAE Std. 90.1 ASHRAE Standard 90.1 was developed to assist owners and designers make informed choices on a building’s design, systems, and equipment selection. Model WMC can significantly exceed ASHRAE 90.1 minimum efficiency requirements. IBC/OSHPD Seismic Certification Daikin Magnitude® WMC chillers have been tested and certified by an independent agency, experts in seismic analysis and design to meet IBC seismic and OSHPD preapproval.
Dimensions Dimensions Unit Dimensions Figure 4: WMC145S (2-pass, right-hand configuration, with grooved connections) L W H Figure 5: WMC145-400D (2-pass, right-hand configuration, with grooved connections) W L H Table 2: WMC145S and WMC145-400D Dimensions Model Heat Exchanger Length in (mm) Width in (mm) Height in (mm) WMC145S E2209 / C2009 134.3 (3411) 43.5 (1105) 81.0 (2057) WMC145D E2212 / C2012 134.3 (3411) 43.5 (1105) 80.8 (2052) WMC150D E2212 / C2012 169.2 (4298) 43.
Dimensions Drawing Notes 1. Final connections must allow for 0.5 inch +/- (12.7mm) manufacturing tolerances. 7. All water connections are given in standard U.S. pipe sizes. Standard connections are suitable for welding or grooved couplings. 2. 1.00-inch FPT (25.4 mm) evaporator and condenser relief valves must be piped per ANSI / ASHRAE 15. Number of relief valves is 1 per evaporator and 2 per condenser. 8. Unit shown has standard right-hand water connections.
Options and Accessories Options and Accessories Unit Options Export Packaging A wooden skid that aids in moving the unit and tight fitting plastic covering the entire unit to protect it from dirt and grime during transit and storage are standard. Open and closed crating is also offered as an option. Pumpout Unit, With or Without Storage Vessel Available in a variety of sizes, single-phase or three-phase, with and without tanks. Contact your Daikin Applied sales office for details.
Options and Accessories RapidRestore® Allow chillers to restart and reach full load operation quickly in the event of a power loss event. See RapidRestore® on page 6 for more details. Special Order Options The following special order options are available; requiring factory pricing, additional engineering, and possible dimension changes or extended delivery: 1. Non-standard location of nozzle connections on heads (compact waterboxes) or marine waterboxes. 2.
CAT 602-4 • MAGNITUDE® MODEL WMC CHILLERS 12 28 33 16 32 12 DISCHARGE HV 20 19 17 18 10 1 2 COMPRESSOR COOLING HV HV 38 PT 3 SUCTION HV 37 6 36 HV 9 SUCTION S 21 FG 30 22 STAGING 4 23 HV HV S 31 CONDENSER 13 EVAPORATOR 5 HV US05 TI TE 11 29 CFS EF CF 24 25 HV EFS 8 7 FE FI FE 14 FI IN OUT IN OUT US04 COMPRESSOR COOLING DISCHARGE MAIN LIQUID US03 TI TE TE TI 39 STAGING US02 TI TE TE TI TT US10 PT PT PT BMCC TT TT COMP
Application Considerations Application Considerations Location Requirements Daikin WMC units are designed only for indoor, weatherprotected, non-freezing areas consistent with the NEMA 1 rating on the chiller, controls, and electrical panels. Equipment room temperature for operating and standby conditions is 40°F to 104°F (4.4°C to 40°C).
Application Considerations temperature entering on start-up must not exceed 90°F (32°C). savings in chiller power would suggest, due to the excessive fan power required. Evaporator Leaving Water Temperature In this scenario, cooling tower fans would continue to operate at 100% capacity at low wet bulb temperatures. The tradeoff between better chiller efficiency and fan power should be analyzed for best overall system efficiency.
Application Considerations Condenser Pumps and Piping The condenser water pump(s) must be cycled off when the last chiller of the system cycles off. This will keep cold condenser water from migrating refrigerant to the condenser. Cold liquid refrigerant in the condenser can make start up difficult. In addition, turning off the condenser water pump(s) when the chillers are not operating will conserve energy.
Application Considerations Type B Knockdown, “Partial Disassembly” Compressor(s), power boxes, and control boxes are removed and shipped on separate skids; combined vessel stack is shipped together as a sub-assembly.
Engineering Guide Specifications Engineering Guide Specifications MAGNITUDE® MAGNETIC BEARING CENTRIFUGAL CHILLERS PART 1 - GENERAL A. [For Type B Knockdowns] The compressor, suction and discharge piping, VFD power panel and touch screen shall be removed and shipped separately. All wiring and piping shall remain attached where possible. The remaining loose parts shall be packaged in a separate crate.
Engineering Guide Specifications centrifugal chiller. Chillers shall have no more than two oil-free, magnetic bearing, semi-hermetic centrifugal compressors (no exceptions). Each compressor shall have an integrated variable-frequency drive operating in concert with inlet guide vanes for optimized full and part load efficiency.
Engineering Guide Specifications 3. The chiller shall be equipped with a refrigerant cooled and integrated Variable Frequency Drive (VFD) to automatically regulate compressor speed in response to cooling load and the compressor pressure lift requirement.
Engineering Guide Specifications system consisting of a 15-inch VGA touch-screen operator interface and a unit controller. cooling tower fan variable frequency drive. 9. [OPTIONAL] The factory mounted controller(s) shall support operation on a BACnet ®, Modbus® or LonWorks® network via one of the data link / physical layers listed below as specified by the successful Building Automation System (BAS) supplier. 2.
Engineering Guide Specifications 5. OSHPD Certification: The chiller shall be OSHPD Pre-Approved per OSP–0116-10 and be so labeled. The chiller shall meet a minimum seismic design spectral response acceleration of 1.60 SDS. The chiller must be mounted to a rigid base and may use neoprene waffle vibration pads. – OR – IBC Certification: The chiller shall be certified to the following codes and standards; 2009 IBC, 2010 CBC, ICC-ES AC-156, ASCE 7-05.
Daikin Applied Training and Development Now that you have made an investment in modern, efficient Daikin Applied equipment, its care should be a high priority. For training information on all Daikin Applied HVAC products, please visit us at www.DaikinApplied.com and click on Training, or call 540-248-9646 and ask for the Training Department. Warranty All Daikin Applied equipment is sold pursuant to its standard terms and conditions of sale, including Limited Product Warranty.
