Schneider Electric EH450 Spécifications

Catalog CAT WMC-4 1 Catalog WMC-4 Water-Cooled Oil-Free Chiller With Magnetic Bearing Compressors Model WMC 145S – 290D 125 to 290 Tons, 440 to 9

MicroTech II Control Features and Benefits FEATURE BENEFIT Easy integration into Building Management System via McQuay’s exclusive Open Choice™ com

The MicroTech II controller's memory retains a record of faults and the time/date stamp. The controller's memory (no batteries required) can

MicroTech II Controller Increases Chiller Operating Economy Many standard features have been incorporated into MicroTech II control in order to maint

13 Catalog WMC-4 Communication Capabilities Versatile Communications Capabilities Give You Even More Control Building Automation Systems All Micro

Table 1, Typical Data Point Availability Typical Data Points1 (W = Write, R = Read) Capacity Limit Output R Cond EWT R Evap Water Pump Status R

15 Catalog WMC-4 Unit Design Features • No increase in operating cost due to displacement of heat transfer surface by non-condensables Variable Fr

the U.S. Department of Transportation for refrigerant shipping containers, as well as ASME vessel codes. When service is required, the refrigerant cha

Part Load Efficiency Chillers usually spend 99% of their operating hours under part load conditions and most of this time at less than 60% of design c

The ARI Standard 550/590-98 for Centrifugal or Screw Water-Chilling Packages and associated manuals define certification and testing procedures and pe

19 Catalog WMC-4 Chiller Identification WMC centrifugal chillers are selected by computer and identified by their components on the selection print

Cutaway View of Magnetic Bearing Compressor, Nominal 75 Tons Compressor Major Running Gear Components MICROTECH II® Controller, Operator Interf

Pressure Drop Curves NOTE: The -B and -C designations shown on the curves refer to vessel tube count, which is determined by the computer selection pr

Figure 12, 2-Pass Evaporators WMC Evap - Water Side Pressure Drop(2 pass)01020304050600 200 400 600 800 1000 1200EGPM - gpmE2212-BE

Figure 14, 3-Pass Evaporators WMC Evap - Water Side Pressure Drop(3 pass)01020304050607080900 200 400 600 800EGPM - gpmEPD - ftE2212-CE2212-DE2209-C

23 Catalog WMC-4 Sound Data The following sound pressure ratings are for measurements one meter from the unit and in accordance with ARI Standard

Dimensions Figure 16, WMC 145S (NOTE: See page 28 for notes.) 145S DRAWING NOT YET AVAILABLE 24 C

Figure 17, WMC 150D, 2-Pass Evaporator, 2-Pass Condenser See page for notes.) 28330654401_2 Pass Evap Production Unit“B”20.4(518.2)42.7(1084.6)9.1

Figure 18 WM C 250D, 2-Pass Evaporator, 2-Pass Condenser for notes.) (NOTE: See page 28 26 Catalog WMC-4

Figure 19, WMC 290D, 2-Pass Evaporator, 2- Pass Condenser (NOTE: See page for notes.) 28 35146.93732.28136.43465.5811.2284.2311.1282.5817.1434.981

Drawing Notes 1. All dimensions are in Inches and [Millimeters] unless noted otherwise. 2. Manufacturing Tolerances, final connections to unit must a

Figure 20, Mounting/Lifting Weights LB RB Shipping Weight, lbs (kg) Lifting Location inch (mm) WMC Model Vessel Models (Size) LF RF LB R

TABLE OF CONTENTS WMC 145D, 150D Dual Compressor... 34 THE NEW COMPRESSOR TECHNOLOGY...4 Single Point Connection...

Marine Water Box Dimensions with Victaulic or Flanged Connections Marine water boxes are an available option on all evaporator and condenser sizes. Ep

Physical Data and Weights Evaporator Refrigerant-side design pressure is 200 psi (1380 kPa). Water-side is 150 psi (1034 kPa). Approximate total squ

Relief Valves Vessel Relief Valves Relief valve connection sizes are 1 inch FPT and are in the quantity shown in Table 9. Relief Valve Piping Sizes T

33 Catalog WMC-4 Electrical Data Wiring, fuse and wire size must be in accordance with the National Electric Code (NEC). Figure 22, Terminal Box,

General Note: The RLA for use in the following tables is obtained by the selection of a specific unit by McQuay. When shipped, a unit will bear the sp

Single-point Connection, Optional Table 14, WMC 145D, 150D Electrical Data Field Wire RLA Minimum Circuit LRA Max Fuse Size (Per Compressor) Ampacity

Single Point Connection, Optional Field Wire RLA Minimum Circuit LRA Max Fuse Size (Per Compressor) Ampacity (MCA) Quantity Wire GA 72 to 76 Amps 110

80* CHILLED WATER PUMP STARTERSEWI-2CP2CP1NOTE 11NOTE 11NOTE 11*NOTE 8NOTE 8NOTE 9HOA C4* COOLING TOWER FIRST STAGE STARTER* COOLING TOWER

38 Catalog WMC-4 Power Factor The full load power factor exceeds 0.90 for all capacity selections. VFD Line Harmonics Despite their many benefits,

The power line noise emissions associated with variable frequency and variable speed drives can cause disturbances in nearby equipment. Typical distur

The New Compressor Technology Next Generation Centrifugal – Here Today Environmental Responsibility Long Term Refrigerant Solution The industry’s n

40 Catalog WMC-4 Application Considerations Pumps To avoid the possibility of objectionable harmonics in the system piping, 4-pole, 1800/1500 rpm

power and fan power must be examined. On the other hand, the low condenser water temperatures can be easy and economical to achieve in mild climates w

All interlock contacts must be rated for no less than 10 inductive amps. The alarm circuit provided in the control center utilizes 115-volts AC. The a

43 Catalog WMC-4 The necessary procedure for reconnecting power from the generator back to the utility grid is shown below. These procedures are no

44 Catalog WMC-4 Vessels Unit Marine water boxes Export packaging Can be either slat or full crate for additional protection during shipment. Unit

EMI filter NEMA 4 or NEMA 12 construction Factory-installed option. Radio interference filter. See page Ground Fault Protection 38 for details. Prote

46 Catalog WMC-4 Refrigerant Recovery Units Although McQuay chillers can pump the entire refrigerant charge into the condenser and valve it off, th

MODEL RRU570 Recovers at R-134a at 300 lb/min liquid and 5.7 lb/min vapor, ideal for the medium size chiller job. Rugged 3 hp open-drive compresso

SPECIFICATIONS Sensitivity: As low as 1 PPM Range: 0 to 1000 PPM Weight: 25 lbs. (11 kg) Size: W=16.5in. D=6.75in. H=15in. Power: 120/240 Volt, 50/6

Figure 28, Refrigerant Monitor Diagram Warranty Statement Limited Warranty Consult your local McQuay Representative for warranty details. Refer

Greater Reliability Exceptional Control Oil Handling Equipment Removed User-Friendly Touch Screen Panel With magnetic bearings operating in a magnetic

Specifications SECTION 15XXX MAGNETIC BEARING CENTRIFUGAL CHILLERS PART 1 — GENERAL 1.1 SUMMARY Section includes design, performance criteria, refri

1.7 MAINTENANCE A. Maintenance of the chillers shall be the responsibility of the owner. PART 2 — PRODUCTS 2.1 ACCEPTABLE MANUFACTURERS A. McQuay In

1. Evaporator and condenser shall be of the shell-and-tube type, designed, constructed, tested and stamped according to the requirements of the ASME

E. CHILLER CONTROL The unit shall have distributed microprocessor-based control architecture consisting of a 15-inch VGA touch-screen operator interfa

The information communicated between the BAS and the factory mounted unit controllers shall include the reading and writing of data to allow unit moni

B. Factory Start-Up Services: Provide for as long a time as is necessary to ensure proper operation of the unit, but in no case for less than two ful

(800) 432-1342 • www.mcquay.com Catalog WMC-4 (08/07) This document contains the most current product information as

The Compressor Technology Variable Frequency Drives Compressor unloading and subsequent chiller capacity reduction is accomplished by a compressor-mou

Benefit Summary Highest Efficiency- in its size range; as low as .375 kW/ton. Smart refrigerant choice - The compressor is optimized for HFC-134a, the

8 Catalog WMC-4 Control Features The operator interface panel has a 15-inch Super VGA touch-screen, utilizing graphics to provide clear and concise

9 Catalog WMC-4 Figure 4, Control Panel The control system of the WMC chillers consists of two major components: the unit control panel, as shown t