Goodman WMC145D User Manual

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Engineered for flexibility and performance™

Magnitude™ Magnetic Bearing Centrifugal Chillers Catalog 602-2

Model WMC, B Vintage • 145 to 400 tons • 500 to 1400 kW • R-134a

Cutaway View of Magnetic Bearing Compressor

Compressor Major Running Gear Components

MicroTech II® Controller Operator Interface, Home Screen

Table of Contents

Manufactured in an ISO Certified Facility

Document: Catalog 602-2

Modbus™

Applies to 60 HZ only

The New Compressor Technology ........................................................................................................................ 4

Benefit Summary ............................................................................................................................................ 4

The Compressor Technology .......................................................................................................................... 5

Low Operating Costs ...................................................................................................................................... 6

Environmental Responsibility ........................................................................................................................ 6

Unit Control Features ..................................................................................................................................... 7

MicroTech II ® Control Features and Benefits ................................................................................................ 8

Unit Design Features ........................................................................................................................................... 12

Chiller Identification ........................................................................................................................................... 16

Sound Data ........................................................................................................................................................... 17

One-Third Octave Band ................................................................................................................................ 17

Dimensions ........................................................................................................................................................... 19

Marine Water Box Dimensions ..................................................................................................................... 25

Physical Data and Weights ................................................................................................................................. 27

Physical Data ................................................................................................................................................ 28

Relief Valves ......................................................................................................................................................... 29

Electrical Data ..................................................................................................................................................... 30

Power Factor Correction ............................................................................................................................... 40

VFD Line Harmonics ................................................................................................................................... 40

Application Considerations ................................................................................................................................ 42

Location ........................................................................................................................................................ 42

Optimum Water Temperatures and Flow ...................................................................................................... 42

System Water Volume ................................................................................................................................... 44

Pump Control ................................................................................................................................................ 44

Retrofit Knockdown ..................................................................................................................................... 45

Pressure Drop Curves ................................................................................................................................... 46

Options and Accessories...................................................................................................................................... 49

Refrigerant Recovery Units ................................................................................................................................ 51

Refrigerant Monitors .......................................................................................................................................... 52

Specifications ....................................................................................................................................................... 54

*Unit Controllers are LONMARK certified with an optional LONWORKS communication module.

Original Issue Date: February 2009 Revision Issue Date: May 2013 Replaces: February 2013 Software Version V08.20

©2013 Daikin Applied. Illustrations and data cover the Daikin product at the time of publication and we reserve the right to make changes in design and construction at anytime without notice. ™® The following are trademarks or registered trademarks of their respective companies: BACnet from ASHRAE; LONMARK, LonTalk, LONWORKS, and the LONMARK logo are managed, granted and used by LONMARK International under a license granted by Echelon Corporation; Modbus from Schneider Electric; MicroTech II, Open Choices from Daikin.

Catalog 602-2 3

Applies to 60 HZ only

The New Compressor Technology

For Magnitude™ Model WME information see Catalog 604

Next Generation Centrifugal -

Here Today

The industry’s next generation of centrifugal chillers is here today with Daikin Magnitude chillers. The new technology begins with centrifugal compressors utilizing frictionless magnetic bearings for oil-free operation, integral variable-frequency drives, and high-speed direct drive technology. The high efficiency compressor is matched with highly efficient heat exchanges to make an impressive chiller. The control system is based on Daikin’s MicroTech II family to provide the optimum chiller control system. We invite you to look at how the features and benefits compare to older compressor technologies.

Benefit Summary

• Highest Efficiency- in its size range; as low as

0.328 kW/ton.

•

Increased Reliability This frictionless

magnetic bearing design needs no oil. With no oil to coat the heat transfer surfaces, a gain in heat exchanger efficiency can be realized.

•

Ultra Quiet A compressor sound level as low

as 76 dBA, with virtually no structure-borne

vibration, eliminates the need for expensive sound attenuation accessories.

• Sustainable Performance All oil-lubricated

chillers will deposit oil on heat transfer surfaces and eventually lose some efficiency. Since the Magnitude chiller uses a positive pressure refrigerant and has no oil, its industry-leading efficiency is maintained for the life of the chiller. Additionally, over time negative pressure chillers may draw air and moisture into the system, which can significantly increase energy consumption.

•

Smart refrigerant choice The compressor is

optimized for HFC 134a, the positive pressure refrigerant with no phase-out schedule and no ozone depletion.

•

Smart controls. The compressor is self-

correcting and incorporates a system of sophisticated self-diagnostics, monitoring and controls. event of a power failure, the compressor motor acts as a generator, providing power for the bearing control system during coast down. It also has a system to gently de-levitate the shaft.

Safe power interruption In the

4 Catalog 602-2

Oil-Free Design Benefits

Totally Oil-Free Operation = Greater Efficiency

With no oil to coat the heat tr ansfer surfaces, a gain in heat exchanger efficiency can be realized.

No Oil Loss = Sustainable Performance

With no possibility of oil loss at light loads or due to worn seals, the original energy saving efficiency can be maintained for the life of the chiller.

No Oil Handling Equipment = Greater Reliability

With magnetic bearings operating in a magnetic electrical field instead of oil-lubricated bearings, the oil handling equipment is removed. No need for:

oil pumps

oil reservoi rs

oil coolers

oil filters

water r egulating valves

oil relief valves

oil system controls, starter, piping, heaters, etc...

that are needed to maintain oil quality. These devices can be a fault source in tr aditional chillers, and removing them significantly increases unit and system reliability.

No Oil System = Reduced Maintenance Costs

With oil removed from the system, oil samples, oil changes, oil system maintenance, oil f ilter changes and leaks are eliminated.

The Compressor Technology

The advanced, magnetic bearing, permanent magnet synchronous motor technology used in Magnitude chillers offers many owner benefits.

Figure 1, Compressor Cutaway

Magnetic Bearings and

11..

Bearing Sensors

Permanent Magnet

22..

Synchronous Motor

Touchdown Bearings

33..

Shaft and Impellers

44..

Compressor Cooling

55..

VFD

66..

VFD = Ultra-Low IPLV

The well-proven energy performance advantages of large central plant type variable-speed centrifugal chiller compressors now benefit mainstream, middle-market applications through the use of high-speed, centrifugal compression with integral variable-speed drive.

The compressor speed reduces as the condensing temperature and/or cooling load reduces, optimizing energy performance through the entire operating range. Movable inlet guide vanes redirect gas flow into the first stage impeller during low loads, after the compressor has reached minimum speed.

Ultra-Smart Controls

The chillers utilize digital control electronics to proactively manage unit operation and providing control of external chilled water and cooling tower pumps.

Greater Reliability

Oil Handling Equipment Removed

With magnetic bearings operating in a magnetic electrical field instead of oil lubricated ball or roller friction type bearings as the basis of design, the oil handling equipment is removed.

Catalog 602-2 5

Exceptional Control

User-Friendly Touch Screen Panel

Every Magnitude chiller is provided with the userfriendly operator interface touch screen panel mounted on the moveable positioning arm for easy viewing and operation.

View chiller status, clear faults and change parameters by merely touching the screen.

For added convenience, the unit operating and maintenance manual is viewable on the screen and can be downloaded and printed via the USB port located in the control panel.

Low Operating Costs

Shrink Your Utility Costs with Ultra Efficient Part-Load Performance

The Magnitude chiller Integrated Part Load Value (IPLV) is as low as 0.328 kW/Ton. Compare this with most screw compressor chillers - approximately 0.575 kW/Ton. There is a potential for up to 40% energy savings at part load compared to other chillers.

Virtually Eliminate Maintenance Costs

l samples, oil change-outs, oil system maintenance, oil filter changes are eliminated. The bearing system, shafting and impellers are shown here.

Flexible BAS Interface Modules

Every Magnitude chiller with MicroTech®II controls and the Open Choices™ feature can be provided with L Modbus communications modules for an easy, low cost connection to the building automation system of your choice. Expensive and complex interface gateways are not required.

Modules can also be easily retrofitted after installation.

ONWORKS, BACnet, or

Variable Frequency Drives

Compressor unloading and subsequent chiller capacity reduction is accomplished by a compressor-mounted variable frequency drive. It operates in conjunction with the inlet guide vanes.

The VFDs are a key factor in providing the tremendous energy savings at part load operation.

Seismic Certification Option

WMC units are OSHPD Pre-Approved and so labeled. (California only).

WMC units are certified to IBC 2009

nvironmental Responsibility

Long Term Refrigerant Solution

The Magnitude chiller uses R-134a refrigerant, which does not have a phase-out date and does not attack the ozone layer.

Ultra Quiet Sound Levels

The Magnitude chiller is the quietest chiller in the industry for its size range. It is perfect for sound sensitive applications. See ratings on page 17.

The best way to appreciate how quiet these units are is to hear one operate. It is important to compare the sound data in this catalog to other offerings. Remember that a sound pressure difference of only two to three dBA is a very noticeable difference. A number of owners have asked for a large indicating light on the unit so they can tell when it’s on!

6 Catalog 602-2

Extremely Low Vibration Levels

As a result of the magnetic bearings and low inertia design, the compressor vibration levels are extremely low, minimizing vibration that could be transmitted to the structure.

The unit is shipped with rubber mounting pads and spring vibration isolators are not required.

Unit Control Features

Magnitude Chillers Feature MicroTech

It is only fitting that the world’s most revolutionary chiller design be matched with the advanced Daikin MicroTech control technology to give you the ultimate in chiller performance and control. The control includes many energy-saving features and interface

enhancements not found in any other unit controller system on the market today. MicroTech controller's innovative design will help keep your chiller running efficiently . . . day in, day out, for years to come.

Control Architecture

The Magnitude chiller takes advantage of Daikin International’s 30 years of experience in designing and manufacturing the highly regarded WDC line of

conventional, dual centrifugal compressor chillers.

The operator interface panel is a 15-inch Super VGA touch-screen, utilizing graphics to provide clear and concise information on the chiller status, (see page 9) alarms, trends, and setpoint adjustment. Should the touch-screen become inoperable, the unit controller will continue uninterrupted operation of the chiller.

The controller minds those functions that are common to the chiller as a whole (pumps, cooling

tower, valves, etc.) and is the interface point for BAS connection and other control inputs to the chiller, as well as outputs such as operation of the electronic expansion valve.

The control panel contains a USB port for downloading the unit’s fault history, major parameter trends, and the unit operating manual that is stored in the microprocessor.

Catalog 602-2 7

energy conservation

MicroTech II ® Control Features and Benefits

FEATURE BENEFIT

Easy integration into Building Automation System

(BAS) via the exclusive Open Choice™

communication module

Easy to read, adjustable, 15 inch, Super VGA color

touch screen operator interface

Historic trend data-downloadable

Precise ± 0.2 °F chilled water control

Proactive pre-shutdown correction of “unusual

conditions” allows chiller to stay online

Automatic control of chilled water and condenser

water pumps

Controls up to four stages of tower fans and modulation of tower fan and/or bypass valve

Twenty-five previous alarm descriptions are stored

in memory

Up to four WMC chillers* can be interconnected

for coordinated operation

Designed with the Operator in Mind

Reliable, economic use of any chiller depends largely on an easy operator interface. That’s why operation simplicity was one of the main considerations in the development of the MicroTech controller. The operator’s interface with the chiller is through a 15-inch, Super VGA color monitor with touch-screen capability. The operator can clearly see the entire chiller graphically displayed with the key operating parameters viewable on the screen. Pressing a single on-screen button will access the set screens where setpoints can be reviewed and changed, if necessary. Other screens, such as alarm history, are easily accessed through touch screen buttons. See the following page for some typical screens.

By constantly monitoring chiller status, the MicroTech controller will automatically take proactive measures to relieve abnormal conditions or shut the unit down if a fault occurs. For example, if a problem occurs in the cooling tower and discharge pressure starts to rise, the controller will automatically hold the load point and activate an alarm signal. A further rise in pressure will initiate compressor unloading in an effort to maintain the setpoint pressure and stay online. If the pressure continues to rise, the unit will shut off at the cutout pressure setting.

Designer can select any BAS supplier using standard open protocols and know the MicroTech II control will

interface with it.

Provides stability in chilled water system

Valuable asset for trouble shooting

Simplifies multi-chiller installations

Operators can observe chiller operation and easily

select various data screens and change setpoints

Water temperatures, refrigerant pressures, and motor

load plots can provide valuable information for

Activates alarm and modifies chiller operation to

provide maximum possible cooling

Integrated lead/lag and automatic engagement of

backup pump

Optimum integrated, efficient, control of cooling tower

water based on system conditions

The MicroTech controller's memory retains a record of faults and the time/date stamp. The controller's memory (no batteries required) can retain and display the cause of the current fault and the last twenty-five fault conditions. This method for retaining the fault is extremely useful for trouble shooting and maintaining an accurate record of unit performance and history. The controller features a two-level password security system to provide protection against unauthorized use.

The Home Screen shown in Figure 2 is usually used as the primary viewing screen. It provides real time data on unit status, water temperatures, chilled water set point and motor amp draw. In other words, it very clearly answers the vital question: is the chiller doing what it is supposed to do?

*Note: WMC B-vintage chillers may not be interconnected with any

other model, including WMC A-vintage models. See IM 10292 for more information.

8 Catalog 602-2

Figure 2, MicroTech II Home Screen

an alarm occurs, a red button appears on the

If screen (a remote signal is also available). Pressing this button immediately accesses the Active Fault Screen that gives complete fault information. The problem can be fixed and the fault can be quickly and easily cleared at this point.

Changing Setpoints

The mystery of changing set points is a thing of the past. Look at how easy the job becomes with the Daikin MicroTech. For example, to change the chilled water set point, press SET from any screen, then press the WATER button and this screen appears, press button #1, Leaving Water Temperature, and you are ready to input a new value. Selected setpoints can also be changed by the BAS.

gure 3, MicroTech II Setpoints Screen

The Daikin MicroTech controller can record and plot water temperatures, refrigerant pressures, and motor load in order to trend performance. These values can also be downloaded through a convenient USB port in the control panel, and exported into a spreadsheet for further evaluation and record purposes.

Figure 4, Trend Logging Screen

MicroTech Controller Increases Chiller Operating Economy

Many standard features have been incorporated into MicroTech control in order to maintain the operating economy of Daikin centrifugal chillers. In addition to replacing normal relay logic circuits, we’ve enhanced the controller's energy saving capabilities with the following features:

• Direct control of water pumps. Optically

isolated, digital output relays provide automatic lead-lag of the evaporator and condenser pumps, permitting pump operation only when r

equired.

• User-programmable compressor soft loading.

Prevents excessive power draw during pull down from high unoccupied chilled water temperature conditions.

• Chilled-water reset. Accomplished directly on

he unit by resetting the leaving water

t temperature based on the return water temperature. A remote 4-20 ma or 1-5 VDC BAS signal can also be used to reset th

eaving water. Raising the chilled water

Trend Logging

Ever wonder how your chiller performed last week? Were you holding the required chilled water temperature? What kind of cooling load did the chiller have?

Catalog 602-2 9

l setpoint during periods of light loads dramatically reduces electrical consumption.

• Demand limit control. Maximum motor current

draw can be set on the panel, or can be adjusted from a remote 4-20 ma or 1-5 VDC BAS signal. This feature controls maximum demand charges during high usage periods.

• Condenser water temperature control. Capable

of four stages of tower fan control plus an optional analog control of either a three-way tower-bypass valve or variable speed tower-fan motor. Stages are controlled from condenserwater temperature. The three-way valve can be controlled to a different water temperature or track the current tower stage. This allows optimum chilled water plant performance based upon specific job requirements.

• Staging Options (Multiple Chiller

Installations). Lead-lag and load-balance: the MicroTech II controller is capable of compressor lead-lag decisions and balancing compressor loads between two compressors on one unit or two separate Magnitude chillers, using defaults or operator defined staging. For example, in the 30 to 60 percent load segment, one compressor running on each of two chillers will provide better efficiency than two compressors running on one chiller.

• Plotting Historic Trends. Past operation of the

chiller can be plotted as trend lines and even downloaded to spread sheets for evaluation - a valuable tool for optimizing efficiency.

Versatile Communications Capabilities Give You Even More Control

For complete flexibility there are four ways to interface with the MicroTech II controller:

1. Direct entry and readout locally at the operator

interface panel on the unit.

2. Direct entry as above plus digital and analog

input/output signals for certain functions such as: enable run input, alarm signal output, 4-20 ma or 0-5 VDC inputs for chilled water reset and load limiting, pump and tower fan control, analog output for variable speed fan and tower bypass.

3. Interface with BACnet, L

ONWORKS, or

Modbus.

4. Direct communication between three

Magnitude WMC chillers (not compatible with WME models).

Building Automation Systems

All MicroTech II controllers are capable of communications providing seamless integration and comprehensive monitoring, control, and twoway data exchange with industry standard protocols Lon Talk

Open Choice Benefits

• Easy to integrate into your building automation

system supplier of choice

• Factory- or field-installed communications

module

• Provides efficient equipment operation

• Integrated control logic for factory options

• Easy-to-use local user interface

• Owner/designer can select the BAS that best

meets building requirements

• Comprehensive data exchange

or BACnet or Modbus.

10 Catalog 602-2

Capacity Limit Output

Cond EWT

Evap Water Pump Status

Chiller Enable

Cond LWT

Run Enabled

Chiller Local/Remote

Cond Refrigerant Pressure

Liquid Line Refrigerant Temp

Chiller Mode Setpoint

Cond Water Pump Status

Minimum Send Time

Chiller Status

Evap Flow Switch Status

Cool Setpoint

Compressor Percent RLA

Evap LWT for Compressor

Default Values

Compressor Select

Evap Refrigerant Pressure

Actual Capacity

BACnet MS/TP

LonTalk (FTT-10A)

BACnet IP

Modbus RTU

BACnet Ethernet

Figure 5, Sample System Architecture

Table 1, Typical Data Point Availability

Typical Data Points

Capacity Limit Setpoint W Cond Flow Switch Status R Pump Select W

Chiller Limited R Cond Pump Run Hours R Liquid Line Refrigerant Pressure R

Chiller Mode Output R Cond Sat. Refrigerant Temp R Maximum Send Time W

Chiller On/Off R Evap EWT R Network Clear Alarm W

Compressor Discharge Temp R Evap LWT for Unit R Current Alarm R

Compressor Run Hours R Evap Pump Run Hours R Active Setpoint R

Compressor Starts R Evap Sat. Refrigerant Temp R Compressor Suction Line Temp R

Notes: Data points available are dependent upon options selected

(W = Write, R = Read)

Network Protocol Options

Catalog 602-2 11

Unit Design Features

Variable Frequency Drive

Efficiency: The standard variable frequency drive

is a technology that has been used for decades to control motor speed on a wide variety of motordrive applications. When applied to centrifugal compressor motors, significant gains in part load performance can be realized. The improvement in efficiency and reduction of annual energy cost is maximized when there are long periods of part load operation, combined with low compressor lift (lower condenser water temperatures).

The attributes of VFD and the compressor technology produces one of the industry's most efficient chiller based on the all-important IPLV value. See “IPLV/NPLV Defined” on page 14 for details on the AHRI IPLV efficiency rating.

Starting Inrush: The use of a VFD on centrifugal chillers also provides an excellent method of reducing motor starting inrush-even better than "solid state" starters. Starting current can be closely controlled since both the frequency and voltage are regulated. This can be an important benefit to a building's electrical distribution system. The low inrush feature, combined with two one-half size compressors having a staggered start, is particularly attractive where chillers will be asked to operate on emergency generators. Since inrush has much to do with sizing the generators, much smaller generators can be used.

Optional Harmonic Filter

An optional field-mounted harmonic filter is available. See page 40 for details.

HFC-134a

Daikin Positive Pressure Design:

• No

• No Vacuum Prevention System

• No Contaminants

HFC-134a operates above atmospheric pressure in the entire refrigerant circuit and at normal temperatures. All Daikin centrifugal chillers use a positive pressure refrigerant, with the following benefits:

• N

circuit

• No breakdown of motor insulation, refrigerant

or lubricant

• No increase in operating cost due t

d condensables

Purge

o absorption of impurities into the refrigerant

isplacement of heat transfer surface by non-

• No crevice corrosion and tube failure due t

oisture in the system

• No annual service expense to maintain a

rebuild purge unit

• No abnormal annual service expense for oil

ilter, and refrigerant replacement

• No periodic emissions of refrigerant into the

atmosphere

Heat Exchangers

Daikin Magnitude chillers are equipped with high performance heat exchangers. The unique design greatly increases heat transfer and reduces unit footprint and refrigerant charge. Vessels are designed, constructed and tested in accordance with ASME Section VIII, ASHRAE Standard 15 requirements and TEMA recommendations.

he replaceable water tubes are internally rifled and externally enhanced copper, and are mechanically bonded to steel tube sheets. Standard tubes are 0.025-inch wall thickness. Consult factory for other options.

Vessels are available for 1, 2 or 3 pass water flow. A 3/4" or 1-1/2 thick layer of vinyl/nitrate polymer evaporator insulation is optional. All seams are glued to form an effective vapor barrier. Detailed information on the insulation can be found under “Physical Data” on page 27.

Pumpdown

Pumpout systems provide a means to collect and contain the refrigerant charge without loss when access to internal chiller components is required for service.

Daikin condensers and evaporators are sized to hold the entire unit refrigerant charge when not more than 90% full and at 90°F (32°C) ambient temperature. They are equipped with valves in the compressor discharge lines, suction lines, and in the liquid line. These valves, coupled with the vessel design, satisfy the stringent requirements of the U.S. Department of Transportation for refrigerant shipping containers, as well as ASME vessel codes. When service is required, the refrigerant charge can be pumped down into either the condenser or evaporator by compressor operation and use of a refrigerant transfer unit.

12 Catalog 602-2

Elimination of the cost and space requirements of an external pumpout system on most jobs is a major Daikin advantage.

Electronic Expansion Valve

Controlled refrigerant flow over the entire capacity range saves energy and dollars. Cooling loads and condenser water temperatures can change constantly. On Magnitude chillers, a modern electronic expansion valve meters refrigerant flow in direct response to the unit controller input, which looks at unit kW and lift (discharge minus suction pressure) to set the valve position. The controller then balances suction superheat and liquid subcooling to reach the optimum efficienc y, regardless of changing load or condensing temperatures. In doing so, full utilization of compressor, evaporator, and condenser efficiency over the entire operating range is achieved.

Flow Switch

All chiller units must be provided with flow switches for the evaporator and condenser. Daikin furnishes factory-installed and wired, thermal dispersion-type flow switches as standard equipment on Magnitude chillers. This eliminates the expense of field mounting and wiring conventional paddle or differential pressure switches.

e flow switches

Th prevent the unit from starting without sufficient water flow through the vessels. They also serve to shut down the unit in the event that water flow is

interrupted to guard against evaporator freeze-up or excessive discharge pressure.

Optional Witness Test

A factory engineer oversees the testing in the presence of the customer or their designate and translates the test data onto an easy-to-read spreadsheet. Tests are run to AHRI tolerances of capacity and power. 50 Hertz units are tested using an on-site 50 Hertz generator.

Daikin Factory Service Startup

All Daikin centrifugal chillers are commissioned by local Daikin Factory Service personnel or by authorized Daikin startup technicians. This procedure helps assure that proper starting and checkout procedures are employed and helps speed up the commissioning process.

Part Load Efficiency

According to ASHRAE, chillers usually spend 99% of their operating hours under part load conditions and most of this time at less than 60% of design capacity. One compressor of a dual chiller operates with the full heat transfer surface of the entire unit. For example, one 75-ton compressor on a 150-ton dual chiller utilizes 150 tons of evaporator and condenser surface. This results in very high unit efficiency and also increases the compressor’s capacity. The inclusion of VFDs, as standard, to the dual compressor chiller can produce astonishing AHRI Certified IPLVs, selections can vary from this example.

as low as 0.328 kW/ton. Specific

Compliance with ASHRAE Std. 90.1

With the Magnitude chiller capacity range of 145 to 400 tons, they fall into three ASHRAE Std. 90.1 efficiency groups and revisions.

Additionally, for a higher margin of protection, normally open auxiliary contacts in the pump starters can be wired in series with the flow switches as shown in the Field Wiring Diagram.

Optional Certified Test

A factory engineer oversees the testing, certifies the accuracy of the computerized results, and translates the test data onto an easy-to-read spreadsheet. The tests are run to AHRI tolerance of capacity and power. 50 Hertz units are tested using an on-site 50 Hertz generator.

Catalog 602-2 13

Table 2, ASHRAE 90.1 Requirements (kW/ton)

Path A

Path B

Load-

150 Tons

< 300 Tons

300 Tons

600 Tons

DCBA

IPLVorNPLV

12.0

45.0

42.0

01.0

DCBAIPLVorNPLV 12.0+45.0+42.0+01.0=

Std. 90.1

Capacity

Range

< 150 Tons 0.703 0.669

≥

≥ <

NOTE: Beginning in 2010, the 90.1 efficiency requirements have been divided into two groups, designated as Path A and Path B. Path B is a new category created for units with VFD compressor drives that by nature have superior part-load efficiencies. WMC

Pre 2010 Starting in 2010

Full

IPLV

Load

0.634 0.596 0.634 0.596 0.639 0.450

0.576 0.549 0.576 0.549 0.600 0.400

Full

IPLV

0.634 0.596

Full

IPLV

0.639 0.450

Magnitude chillers, with their built-in VFDs, fall into

Path B.

The Path B IPLV values for 2010 are about 30 percent less than the 2007 equivalent values. Also beginning in 2010, the minimum efficiency values are formula derived instead tabular so that they can take flows and temperatures other than AHRI standard into account.

AHRI Certification

Daikin has an on-going commitment to supply chillers that perform as specified. To this extent, Daikin centrifugal chillers are part of the AHRI Certification Program. On-going performance verification of chiller capacity and power input plus AHRI certified computerized selection output provide the owner with specified performance in accordance with the latest version of AHRI Standard 550/590.

All c

hillers that fall within the scope of the certification program have an AHRI certification label at no cost to the owner. Equipment covered by the AHRI certification program includes all water-cooled centrifugal and screw water chilling packages rated up to 2500 tons (8800 kW) at AHRI standard rating conditions, hermetic or open drive, with electric driven motor not exceeding 5000 volts, and cooling water (not glycol).

Published certified ratings verified through testing by AHRI include:

and performance tolerances of all units that fall within the application rating conditions.

Leaving chilled water temp.: 40°F to 48°F (44°F standard)

Entering condenser water temp.: 60°F to 95°F

Leaving chilled water temp.: 44°F

Evap. waterside field fouling allowance: 0.0001

Chilled water flow rate: 2.4 gpm/ton

Entering condenser water temp.: 85°F

Condenser waterside field fouling allowance:

0.00025

Condenser water flow rate: 3.0 gpm/ton

IPLV/NPLV Defined

Part load performance can be presented in terms of Integrated Part Load Value (IPLV), which is based on AHRI standard rating conditions (listed above), or Non-Standard Part Load Values (NPLV), which is based on specified or job site conditions. IPLV and NPLV are based on the following weighting equation from AHRI 550/590:

ing kW/ton:

Wher

A = kW/ton at 100% B = kW/ton at 75% C = kW/ton at 50% D = kW/ton at 25%

, using COP values:

Where:

A = COP at 100% B = COP at 75% C = COP at 50% D = COP at 25%

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

14 Catalog 602-2

• Capacity, tons (kW)

• Power, kW/ton (COP)

• Pressure drops, ft. of water (kPa)

• Integrated Part Load Value (IPLV) or Non-

Standard Part Load Value (NPLV)

% . ( . % )

Tolerance x FL

DTFLx FL

= − +

 



 



10 5 0 07

1500

Weighting

The percent of annual hours of operation at the four load points are as follows:

ton (kW/ton), and heat balance is:

100% Load at 1%

75% Load at 42%

50% Load at 45%

25% Load at 12%

Note that the vast majority of hours are at the operating range where dual compressor chillers excel.

Tolerances

The AHRI test tolerance, per AHRI Standard 550/590-98, for capacity (tons), power input per

Where: FL = Full Load DTFL = Chilled Water Delta-T at Full Load This formula results in a ±5% tolerance on tons and kW/ton at the 100% load point and AHRI conditions.

Catalog 602-2 15

MODEL CODE EXAMPLE:

Packaged Water Cooled

M = Magnetic

Centrifugal Compressor Model

Unit Model Code

Motor/Voltage Code

Evaporator Shell Description

Tube Count Code

Tube Type Code

Number of Passes (1, 2, 3)

Water Inlet Location (R = Right Inlet; L = Left Inlet)

Connection Type

Condenser Shell Description [Diameter (in.), Length (ft.)]

Tube Count Code

Tube Type Code

Tube Count Code (Heat Recovery Condenser)

Tube Type Code (Heat Recovery Condenser)

Number of Passes (1, 2, 3)

Wate

r Inlet Location (R = Right Inlet; L = Left Inlet)

Connection Type

Number of Passes (Heat Recovery Condenser)

Water Inlet Location (Heat Recovery Condenser)

Motor Manufacturer

N/A

Chiller Identification

Magnitude centrifugal chillers are selected by computer and identified by their components on the selection printout as a Model #. The unit model code is as follows:

Figure 6, Chiller Identification

C O M P R E S S

Vintage/Single Refrigerant Circuit

O R

E V

[Diameter (in.), Length (ft.)]

A P O R A T O R

W M C - 150D - BS - 13R / E2212 - B E - 2 RA / C2012 - B L Y Y - 2 R A Y Y Y R 134

Connection Type (Heat Recovery Condenser)

Refrigeration Type (134 = HFC-134a)

16 Catalog 602-2

63 Hz

125 Hz

250 Hz

500 Hz

1 kHz

2 kHz

4 kHz

8 kHz

78.0

Octave Band

63 Hz

125 Hz

250 Hz

500 Hz

1 kHz

2 kHz

4 kHz

8 kHz

100

37.5

49.5

56.0

65.0

72.0

70.0

66.5

64.0

75.5

39.5

48.5

55.0

61.0

69.5

64.5

64.0

60.0

72.5

36.0

48.5

54.5

57.5

65.5

60.5

57.5

52.0

68.0

Octave Band

63 Hz

125 Hz

250 Hz

500 Hz

1 kHz

2 kHz

4 kHz

8 kHz

100

37.5

51.5

59.5

72.0

75.0

72.5

76.5

75.0

81.5

37.0

50.5

62.5

66.5

70.0

69.5

74.0

70.5

78.0

75.0

37.5

49.0

59.0

63.0

65.0

66.0

69.5

64.0

73.5

Octave Band

63 Hz

125 Hz

250 Hz

500 Hz

1 kHz

2 kHz

4 kHz

8 kHz

100

83.5

44.5

51.5

61.0

64.5

67.5

73.0

62.0

77.0

Sound Data

The following sound pressure ratings are for measurements one meter from the unit and in accordance with ANSI/AHRI Standard 575. The ratings are for the various part loads shown and at

lowering of sound level as the units unload. Ratings are “A” weighted measured at one-meter from the unit. The 25 percent values are with one compressor running.

the center bands. Note that there is a considerable

Table 3, WMC 145S Sound Pressure (dB), 50/60 Hz

Percent

Load

100

50 25

37.0 50.0 61.0 67.0 74.5 71.5 73.0 75.5

39.5 49.0 60.5 66.0 72.5 69.0 71.0 72.0

37.0 47.5 60.0 64.5 66.5 68.0 69.5 68.0

38.0 50.0 58.0 66.5 68.5 70.0 69.5 70.0

Octave Band

Table 4, WMC 145D/150D, Sound Pressure (dB), 50/60 Hz

Percent

Load

35.5 48.0 54.5 58.0 66.0 61.0 58.5 53.5

Table 5, WMC 250D/290D, Sound Pressure (dB), 50/60 Hz

Percent

Load

A-Weighted

80.5

75.0

76.5

A-Weighted

68.5

A-Weighted

37.5 50.0 60.0 65.0 65.5 66.0 71.5 66.0

Table 6, WMC 400D, Sound Pressure (dB), 50/60 Hz

Percent

Load

46.0 55.5 65.5 70.5 74.5 76.0 80.0 74.5

75 50

45.5 55.5 65.5 69.5 73.5 76.5 79.0 72.5

45.0 54.5 64.0 69.0 71.0 74.5 77.5 70.0

One-Third Octave Band

Table 7, WMC 145S, One-Third Octave Band Sound Ratings

Percent

Load

100

50 Hz 63 Hz 80 Hz 100 Hz 125 Hz 160 Hz 200 Hz 250 Hz 315 Hz 400 Hz 500 Hz 630 Hz 800 Hz

33.5 32.0 30.5 38.0 46.5 46.5 49.0 59.0 56.0 60.5 63.0 63.0 69.5

34.0 36.0 33.0 39.0 45.0 45.5 49.5 58.5 54.5 58.5 60.0 63.5 71.0

31.5 33.5 31.5 37.5 44.5 43.5 48.0 58.5 54.0 53.0 57.0 63.5 58.0

32.0 32.5 34.5 37.0 47.0 46.5 49.5 55.5 53.0 55.0 59.0 65.0 59.5

Table 7, continued

Percent

Load

1 kHz 1.25 kHz 1.6 kHz 2 kHz 2.5 kHz 3.15 kHz 4 kHz 5 kHz 6.3 kHz 8 kHz 10 kHz 12.5 kHz

100

64.0 72.5 66.0 67.5 66.5 66.5 68.0 69.5 72.0 71.0 69.5 67.5

64.0 65.5 64.5 65.5 63.0 64.0 66.0 68.0 69.5 66.5 64.5 62.0

60.5 64.0 63.5 64.5 61.0 61.5 65.5 65.5 65.5 62.5 60.0 58.5

62.5 66.5 65.0 66.5 64.0 63.5 65.0 66.0 67.0 64.5 62.5 60.0

Octave Band

A-Weighted

82.5

81.0

A- Weighted

80.5

78.0

75.0

76.5

Catalog 602-2 17

Load

Octave Band

50 Hz

63 Hz

80 Hz

100 Hz

125 Hz

160 Hz

200 Hz

250 Hz

315 Hz

400 Hz

500 Hz

630 Hz

800 Hz

100

32.5

32.0

34.0

38.0

48.0

42.0

46.0

53.5

51.0

53.0

62.5

60.5

61.0

32.0

37.5

37.0

47.0

41.0

45.5

52.5

50.0

53.5

58.0

55.5

62.5

26.5

30.5

33.0

36.5

47.0

39.0

43.5

52.5

48.5

52.0

53.5

54.5

62.0

100

70.5

65.0

68.0

62.0

63.0

62.5

61.0

61.5

60.0

59.0

58.0

75.5

Load

Octave Band

50 Hz

63 Hz

80 Hz

100 Hz

125 Hz

160 Hz

200 Hz

250 Hz

315 Hz

400 Hz

500 Hz

630 Hz

800 Hz

100

32.0

32.5

33.0

38.0

49.0

47.5

50.5

56.0

70.0

65.5

65.0

71.0

32.0

32.5

37.5

48.0

46.0

48.5

54.0

61.5

60.5

58.0

64.0

63.0

33.0

32.0

37.0

48.5

43.5

47.5

53.0

58.5

52.5

57.5

64.0

57.5

Load

Octave Band

Weighted

1 kHz

1.25 kHz

1.6 kHz

2 kHz

2.5 kHz

3.15 kHz

4 kHz

5 kHz

6.3 kHz

8 kHz

10 kHz

12.5 kHz

100

67.0

71.0

68.0

67.0

68.5

69.5

71.5

73.0

71.0

72.0

67.0

64.5

81.5

66.0

65.5

64.5

67.5

69.5

70.5

66.5

67.0

63.5

60.5

78.0

75.0

58.5

62.0

60.5

61.0

62.0

63.5

66.0

64.5

59.5

61.0

55.5

54.4

73.5

Octave Band

Table 8, WMC 145D/150D, One-Third Octave Band Sound Ratings

Percent

31.5 30.5 32.0 36.5 47.5 40.5 43.5 52.5 49.5 50.5 52.5 54.5 57.5

Table 8, continued

Percent

Load

1 kHz 1.25 kHz 1.6 kHz 2 kHz 2.5 kHz 3.15 kHz 4 kHz 5 kHz 6.3 kHz 8 kHz 10 kHz 12.5 kHz

Octave Band

A- Weighted

75 50 25

67.5 61.5 59.5 58.5 60.5 59.0 60.0 58.0 55.0 54.0 56.5 57.5

57.5 62.5 57.0 55.5 55.5 54.5 55.5 50.0 48.0 45.5 51.0 50.5

63.5 58.0 56.5 56.0 54.0 53.5 54.0 49.5 48.0 45.0 47.5 48.0

Table 9, WMC 250D/290D, One-Third Octave Band Sound Ratings

Percent

33.0 33.0 31.5 35.5 48.0 42.0 45.5 56.0 56.0 49.5 58.5 61.0 59.0

Table 9, continued

Percent

60.0 63.0 60.5 61.0 62.0 65.0 68.5 66.5 62.0 62.0 59.0 57.5

Table 10, WMC 400D, One-Third Octave Band Sound Ratings

Percent

Load

100

50 25

50 Hz 63 Hz 80 Hz 100 Hz 125 Hz 160 Hz 200 Hz 250 Hz 315 Hz 400 Hz 500 Hz 630 Hz 800 Hz

36.0 42.5 42.5 45.5 52.0 52.0 56.0 60.0 63.5 64.5 65.5 67.0 69.5

35.5 42.5 42.0 45.5 51.5 52.0 55.5 60.0 63.5 64.0 65.0 65.0 70.5

34.0 41.5 42.0 43.5 49.0 52.5 56.0 61.5 58.5 63.5 65.0 64.0 66.0

34.0 41.5 41.0 41.5 45.5 50.0 57.0 55.5 55.5 58.5 59.0 61.0 62.0

72.5

68.5

68.0

A-

Table 11, continued

Percent Load

100

75 50 25

1 kHz 1.25 kHz 1.6 kHz 2 kHz 2.5 kHz 3.15 kHz 4 kHz 5 kHz 6.3 kHz 8 kHz 10 kHz 12.5 kHz

71.0 68.5 70.0 72.0 72.0 72.0 75.0 77.5 71.5 69.5 66.0 63.0

68.0 67.5 69.5 71.0 73.5 72.0 74.5 75.5 69.5 68.0 65.0 61.5

65.5 66.5 68.0 69.0 71.5 70.0 73.0 74.5 67.0 65.0 63.5 57.5

62.0 63.5 65.5 71.5 64.5 66.0 71.0 64.0 59.5 57.0 53.5 49.0

18 Catalog 602-2

A-Weighted

83.5

82.5

81.0

77.0

6.2 157

14.7 375

112.1 2846

101.6 2579

128.3 3259

5.3

TYP.BOTH

ENDS

133

29.3

CONDENSER

RELIEF

VALVES

744

58.3

EVAPORATOR

RELIEFVALVE

1480

134.7

(UNITOVERALL)

3421

18.0 458

11.1 283

17.1 435

FRONT

END

BOX

UNIT

CTRL

BOX

EVAPORATOR

CONDENSER

COMPRESSOR

FRONTVIEW

5,7,8

114.8 2916

57.5

1460

22.5

EVAPORATOR

RELIEFVALVE

571

22.6

SUCTION

RELIEF

VALVE

574

26.9

CONDENSER

RELIEF

VALVES

684

TOPVIEW

3,4

5,13

5,13,14

5,7,8

4.0

102

26.5 673

34.5 876

10.0 254

32.7 8

37.8 960

44.3

(OVERALLWIDTH)

1126

16.8 425

44.8

1137

65.9

TOP UNIT

CTRL BOX

1675

74.3

TOP FRONT

ENDBOX

1887

81.0

TOP

COMPR.

2058

69.8

SUCTION

RELIEF

VALVE

1774

O.I.T.S.

OUT

RIGHTVIEW

5,10,12

5.6

INLET

142

5.6

OUTLET

142

8.0

NOM.

TYP.(2X)

203

EVAPORATORHEAD2-PASS

VICTAULIC150 PSI WATERSIDE

OUT

7,8

13.0

INLET

330

19.0

OUTLET

483

5.6

OUTLET

143

5.6

INLET

143

6.0

NOM.

TYP.(2X)

152

CONDENSERHEAD2-PASS

VICTAULIC150 PSI WATERSIDE

OUT

7,8

13.0

INLET/

OUTLET

330

11.3 287

114.8 2916

34.5 876

1.13

MTG. HOLE

(TYP.)

6.3

160

8.9

225

16.0 407

31.9 809

34.0 864

9.0

230

14.0 357

13.8 352

8.0 203

8.0

203

MOUNTING

FOOT(TYP.)

ELECTRICAL

CONNECTIONS

FRONTEND BOX

UNITCTRL BOX

ALLDIMENSIONSAREIN DECMAL

INCHESAND [MILLIMATERS]

SEEDRAWING332835001FORNOTES

5,13,14

5,13

WMC145SBS

332834001 00 NONE

DRAWINGNUMBER REV. SCALE

Dimensions

Figure 7, WMC 145S (B-vintage), 2-Pass, Right-hand (See page 26 for notes.)

Catalog 602-2 19

7.6 194

6.2

157

9.5

241

101.6 2579

112.1 2846

5.3

TYPICAL

BOTH ENDS

133

128.3 3259

29.2

CONDENSER

RELIEF

VALVES

742

58.6

EVAPORATOR

RELIEF

VALVES

1487

134.7

(UNITOVERALL)

3421

17.1 435

11.1 283

UNIT CTRL

BOX

FRONT

END

BOX

CONDENSER

EVAPORATOR

FRONTVIEW

#1 #2

5,7,8

114.8 2916

15.4 391

46.0

1168

22.6

SUCTION

RELIEF

VALVE

574

25.3

EVAPORATOR

RELIEF

VALVE

643

26.3

CONDENSER

RELIEF

VALVES

667

TOPVIEW

3,4

5,13,14

5,13

5,7,8

34.5 876

26.5

673

10.0 254

44.3

(OVERALLWIDTH)

1126

37.8 960

69.8

SUCTION

RELIEF

VALVES

1774

74.3

TOP FRONT

ENDBOX

1887

81.1

TOP

COMPR.

2060

4.0

102

44.8 1137

16.8 425

66.1

TOP UNIT

CTRLBOX

1678

32.7 831

RIGHTVIEW

OUT

5,10,12

OUT

5.6

OUTLET

143

5.6

INLET

143

6.0

NOM.

TYP.(2X)

152

CONDENSERHEAD 2-PASS

VICTAULIC150PSI WATERSIDE

OUT

7,8

13.0

INLET/

OUTLET

330

5.6

142

5.6

142

8.0

NOM.

TYP.(2X)

203

EVAPORATORHEAD2-PASS VICTAULIC150PSI WATERSIDE

OUT

7,8

13.0

INLET

330

19.0

OUTLET

483

114.8 2916

34.5 876

8.0

203

8.0

203

11.3 287

14.0 357

34.0 864

38.6 981

9.1 232

16.0 407

6.3 160

9.0 230

1.13

MTG.HOLE

(TYP.)

13.8 352

FRONTENDBOX

UNITCTRL BOX

MOUNTING

FOOT(TYP.)

ELECTRICAL

CONNECTIONS

ALLDIMENSIONSAREIN DECIMAL

INCHESAND [MILLIMETERS]

SEEDRAWING 332835001 FORNOTES

TOPVIEW

5,13,14

5,13

WMC145DBS

332834101 00 NONE

DRAWINGNUMBER REV. SCALE

Figure 8, WMC 145D (B-vintage), 2-Pass, Right-hand (See page 26 for notes)

20 Catalog 602-2

136.4 3466

146.9 3732

5.3

TYP.BOTH

ENDS

133

163.2 4145

11.1 283

169.6

(UNITOVERALL)

4307

17.1 435

15.5 393

15.9 405

6.2 157

29.2

CONDENSER

RELIEF

VALVES

742

58.2

EVAPORATOR

RELIEF

VALVES

1479

FRONTVIEW

FRONT

END

BOX

UNIT

CTRL

BOX

CONDENSER

EVAPORATOR

5,7,8

46.6

1184

46.0 1168

146.9 3732

22.6

SUCTION PIPE

RELIEF VALVES

574

21.8

EVAPORATOR

RELIEF VALVES

554

26.3

CONDENSER

RELIEF VALVES

667

TOPVIEW

4 4

3,4

5,13,14

5,13

5,7,8

16.8 425

44.8

1137

74.3

TOP

FRONT

END BOX

1887

81.1

TOP

COMPR.

2060

69.8

SUCTION

RELIEF

VALVES

1774

44.3

(OVERALLWIDTH)

1126

37.8 960

32.8 833

66.0

TOP UNIT

CTRL BOX

1677

10.0 254

4.0

102

26.5 673

34.5 876

RIGHTVIEW

OUT

O.I.T.S.

5,10,12

149.7 3802

34.5 876

8.0 203

8.0

203

1.13

MTG.HOLES

(TYP.)

11.4 289

34.0 864

82.6

2098

16.0 407

14.0 357

9.0

230

6.3

160

11.3 287

13.8 352

MOUNTING

FOOT(TYP.)

TOPVIEW

ELECTRICAL

CONNECTION

FRONTEND BOX

UNITCTRL BOX

SEEDRAWING332835001 FORNOTES

5,13 5,13,14

5.6

INLET

142

5.6

OUTLET

142

8.0

NOM.

TYP.(2X)

203

EVAPORATOR HEAD 2-PASS

VICTAULIC150PSI WATERSIDE

OUT

7,8

13.3

INLET

337

19.3

OUTLET

489

5.6

OUTLET

143

5.6

INLET

143

6.0

NOM.

TYP.(2X)

152

CONDENSER HEAD 2-PASS

VICTAULIC150PSI WATERSIDE

OUT

7,8

13.3

INLET/

OUTLET

337

WMC150DBS

ALLDIMENSIONSAREIN DECIMAL

INCHESAND [MILLIMETERS]

332834201

DRAWINGNUMBER

NONE

SCALE

REV.

Figure 9, WMC 150D (B-vintage), 2-Pass, Right-hand (See page 26 for notes)

Catalog 602-2 21

112.1 2846

134.7 3421

17.1 435

11.1 283

29.2

CONDENSER

RELIEF

VALVES

742

61.2

EVAPORATOR

RELIEF

VALVE

1555

135.7

(OVERALLUNIT)

3447

6.2

157

5.3

TYP.BOTH

ENDS

133

8.1

206

101.6 2579

9.5

241

FRONTVIEW

#1 #2

FRONT

END

BOX

UNIT

CTRL

BOX

CONDENSER

EVAPORATOR

5,7,8

15.9 403

46.0

1168

24.2

SUCTION

RELIEF

VALVES

615

114.8 2916

28.9

EVAPORATOR

RELIEF VALVES

735

27.9

CONDENSER

RELIEF VALVES

708

TOPVIEW

3,4

5,13,14

5,13

5,7,8

12.0 305

30.1 765

4.0 102

38.1 968

15.8 400

45.8

1162

72.8

SUCTION

RELIEF

VALVES

1850

74.0

TOP

FRONT

ENDBOX

1881

84.0

TOP OF

COMPR.

2134

41.5

1054

48.0

(OVERALLWIDTH)

1220

65.7

TOP UNIT

CTRL BOX

1669

36.4 925

RIGHTVIEW

OUT

O.I.T.S.

5,10,12

8.0

203

8.0 203

38.1 968

114.8 2916

9.1 232

16.0 407

9.0

230

14.0 357

11.4 289

38.9 987

34.0 864

1.13

MTG.HOLE

TYP.

13.9 353

MOUNTINGFEET

TOPVIEW

ELECTRICAL

CONNECTION

FRONTENDBOX

UNITCTRL BOX

SEEDRAWING332835001 FORNOTES

5,13

5,13,14

7.1

INLET

180

7.1

OUTLET

180

8.6

NOM.

TYP.(2X)

219

EVAPORATORHEAD 2-PASS

VICTAULIC150PSI WATERSIDE

OUT

13.3

INLET

337

13.3

OUTLET

337

5.6

OUTLET

142

5.6

INLET

142

8.6

NOM.

TYP.(2X)

219

CONDENSERHEAD 2-PASS

VICTAULIC150PSI WATERSIDE

OUT

19.3

INLET/

OUTLET

489

WMC250DBS

ALLDIMENSIONSAREINDECIMAL

INCHES AND [MILLIMETERS]

332834301

DRAWINGNUMBER

NONE

SCALE

REV.

Figure 10, WMC 250D (B-vintage), 2-Pass, Right-hand (See page 26 for notes)

22 Catalog 602-2

146.9 3732

136.4 3466

61.2

EVAPORATOR

RELIEF

VALVES

1554

170.6

(UNITOVERALL)

4333

15.5 393

5.9

151

6.2

157

17.1 435

5.3

TYPICAL

BOTH ENDS

133

11.1 283

29.2

CONDENSER

RELIEF

VALVES

742

163.6 4155

FRONTVIEW

FRONT

END

BOX

UNIT

CTRL

BOX

CONDENSER

EVAPORATOR

5,7,8

24.2

SUCTION

RELIEF

VALVE

615

27.9

EVAPORATOR

RELIEF

VALVE

708

149.7 3802

23.4

CONDENSER

RELIEF

VALVES

595

49.1 1247

46.0

1168

TOPVIEW

4 4

3,4

5,13,14

5,13

5,7,8

12.0 305

30.1 765

4.0

102

38.1 96

15.8 400

45.8

1162

72.8

SUCTION

RELIEF

VALVES

1850

74.1

TOP

FRONT

ENDBOX

1881

84.0

TOP OF

COMPR.

2134

65.9

TOP UNIT

CTRL BOX

1673

36.5 927

41.5

1054

48.0

(OVERALLWIDTH)

1220

RIGHTVIEW

OUT

O.I.T.S.

5,10,12

8.0

203

8.0

203

38.1 968

149.7 3802

1.13

MTG.HOLE

TYP.

11.4 289

34.0 864

11.4 289

82.6

2098

16.0 407

14.0 357

9.0 230

6.4 162

13.9 353

MOUNTINGFEET

TOPVIEW

ELECTRICAL

CONNECTION

FRONTENDBOX

UNITCTRL BOX

SEEDRAWING332835001 FORNOTES

5,13

5,13,14

7.1

INLET

180

7.1

OUTLET

180

8.0

NOM.

TYP.(2X)

203

EVAPORATORHEAD 2-PASS

VICTAULIC150PSI WATERSIDE

OUT

13.3

INLET

337

13.3

OUTLET

337

5.6

OUTLET

142

5.6

INLET

142

8.0

NOM.

TYP.(2X)

203

CONDENSERHEAD 2-PASS

VICTAULIC150PSI WATERSIDE

OUT

19.3

INLET/

OUTLET

489

WMC290DBS

ALLDIMENSIONSAREINDECIMAL

INCHES AND [MILLIMETERS]

332834401

DRAWINGNUMBER

NONE

SCALE

REV.

Figure 11, WMC 290D (B-vintage), 2-Pass, Right-hand (See page 26 for notes.)

Catalog 602-2 23

136.4 3466

6.2

157

5.9

151

5.3

TYPICAL

BOTH ENDS

133

146.9 3732

164.4 4174

35.0

CONDENSER

RELIEF

VALVES

888

72.0

EVAPORATOR

RELIEF

VALVE

1829

15.5 393

11.1 283

14.1 359

168.7

(UNITOVERALL)

4285

FRONTVIEW

CONDENSER

EVAPORATOR

FRONT

END

BOX

UNIT

CTRL

BOX

#1 #2

5,7,8

47.1 1197

46.0

1168

149.7 3802

28.9

EVAPORATOR

RELIEF

VALVES

734

29.0

SUCTION

RELIEF

VALVES

737

33.4

CONDENSER

RELIEF

VALVES

847

TOPVIEW

4 4

3,4

5,13

5,13,14

13.1 332

36.0 914

4.0

102

44.0

118

19.5 495

54.5

1385

83.4

RELIEF

VALVES

2117

73.4

TOP

UNIT

CTRL

BOX

1864

81.6

TOP

FRONT

END

BOX

2074

94.5

TOP OF

COMPR.

2401

50.8

(OVERALLWIDTH)

1289

44.2 1123

39.2 996

OUT

RIGHTVIEW

O.I.T.S.

5,10,12

149.7 3802

11.4 289

34.0 864

82.6 2098

16.0 407

8.2

208

14.0 357

9.0 230

3.2 81

8.0

203

8.0

203

1.13

MTG. HOLE

(TYP.)

10.8 273

44.0

1118

MOUNTING

FOOT(TYP.)

ELECTRICAL

CONNECTIONS

TOPVIEW

FRONTEND BOX

UNITCTRL BOX

WMC400DBS

332834501 00

SCALE

DRAWINGNUMBER

REV

NONE

ALLDIMENSIONSAREIN DECIMAL

INCHESAND[ MILLIMETERS]

SEEDRAWING332835001FORNOTES

5,13

5,13,14

7.1

OUTLET

180

7.1

INLET

180

8.0

NOM.

TYP.(2X)

203

CONDENSERHEAD2-PASS

VICTAULIC150 PSI WATERSIDE

OUT

7,8

13.0

INLET/

OUTLET

330

8.1

INLET

207

8.1

OUTLET

207

10.0

NOM.

TYP(2X)

255

EVAPORATORHEAD2-PASS

VICTAULIC150 PSI WATERSIDE

OUT

7,8

16.0

INLET/

OUTLET

406

Figure 12, WMC 400D (B-vintage), 2-Pass, Right-hand (See page 26 for notes.)

24 Catalog 602-2

Marine Water Box Dimensions with Victaulic or Flanged Connections

REAR FACING ONLY

Marine water boxes are an available option on all evaporator and condenser sizes. Caution: There is some nomenclature confusion in the industry. We refer to our standard dished heads as “dished heads”. Some manufacturers refer to them, or similar devices as “water boxes”. They are not “marine water boxes” with removable end covers as illustrated below.

150 PSI Non-ASME - Victaulic Connection

Evap.

Cond.

Notes:

1. Dimensions in inches.

2. Flanges are ANSI raised face. Mating flanges by others.

3. Some condensers with flanges can have staggered connections due to flange interference. Consult factory.

4. Flanges add 0.5 inches to the distance from the vertical centerline to the flange face compared to Victaulic.

Catalog 602-2 25

1 PASS 2 PASS 3 PASS

Dia.

'AAA' 'BBB' 'CCC 'DDD' 'EEE' 'AAA' 'BBB' 'CCC' 'DDD' 'EEE' 'FFF' 'GGG' 'AAA' 'BBB' 'CCC' 'DDD' 'EEE' 'FFF'

E22

10.75 17.00 21.25 20.00 10.00 8.625 17.00 21.00 20.00 10.00 5.59 23.00 5.563 17.00 21.25 20.00 10.00 7.12

E26

10.75 19.00 21.25 20.00 10.00 8.625 19.00 21.25 20.00 10.00 7.07 19.00 6.625 19.00 21.25 20.00 10.00 8.07

E30

14.00 21.00 28.50 26.50 13.25 10.75 21.00 28.50 26.50 13.25 8.13 21.00 6.625 21.00 28.50 26.50 13.25 10.19

1 PASS 2 PASS 3 PASS

Dia.

'AAA' 'BBB' 'CCC 'DDD' 'EEE' 'AAA' 'BBB 'CCC' 'DDD' 'EEE' 'FFF' 'GGG' 'AAA' 'BBB' 'CCC' 'DDD' 'EEE' 'FFF'

C20

8.62 16.00 19.00 18.00 9.00 6.625 16.00 19.00 18.00 9.00 5.63 16.00

C22

10.75 17.00 21.25 20.00

C26

10.75 19.00 21.25 20.00

10.00 8.625 17.00 21.00 20.00 10.00 5.59 23.00

10.00 8.625 19.00 21.25 20.00 10.00 7.07 19.00

Consult Daikin Sales Office

Drawing Notes

NOTES:

1. All dimensions are in inches and [millimeters] unless noted otherwise.

2. Final connections must allow for .500 inch +/- [12.7mm] manufacturing tolerances.

3. 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.

4. .375 inch [9 mm] suction nozzle relief valve must be piped per ANSI / ASHRAE 15.

5. Clearances:

Ends 108 inches (2743 mm) on WMC 145S/D and WMC 250D at one end 144 inches (3658 mm) on WMC 150D, WMC 290, and WMC 400D at one end

plus 36 inches (910 mm) is required at the opposite end. If tube pull and cleaning

clearance is at the connection end, do not block tube access with piping, pumps, etc.

Sides 36 inches (914 mm) is recommended on all other sides and top for service clearance

except unit front electric panels. See below..

Electric Panels Most codes require 48 inches (1219 mm) clearance in front of the control boxes and

electrical panels.

6. 3.25-inch [83mm] diameter lifting holes are provided at the upper corners of each vessel. See

installation manual for lifting instructions.

7. All water connections are given in standard U.S. pipe sizes. Standard Victaulic® connections are also

suitable for welding.

8. The water connection shown is for the default configuration; your unit may be configured differently.

Orientation (left/right) is determined while facing the control panel. Consult the Item Summary sheet for exact configuration. Unit shown has standard right-hand water connections. Left-hand connections are available for either vessel. For left hand evaporator the inlet and outlet nozzles are reversed. ANSIflanged connections are available upon request. When using ANSI-flanged connections add .500 inch [13 mm] to each flanged end.

9. Dimensions shown are for units (evaporator / condenser) with standard design pressures. The

refrigerant side design pressure is 200 PSI {1380 kPa} and the waterside design pressure is 150 PSI {1034 kPa}. Consult the factory for unit dimensions with higher design pressures.

10. The unit vibration isolator pads are provided for field installation. When fully loaded are 0.250 inches

[6 mm] thick.

11. These values are for units with standard wall thickness copper tubing only.

12. The shipping skid adds 6.0 inches [152 mm] to the overall unit height.

13. All-power wiring is brought into the top of the compressor power panel (Front End Box). Field control

wiring is brought into the Unit Control Box.

14. The unit is shipped with an operating charge of refrigerant.

15. Optional marine water box connections are available upon request.

26 Catalog 602-2

"LL"

"LW"

MFL

MFW

332834901

DRAWINGNUMBER

REV.

NONE

SCALE

Physical Data and Weights

Lifting and Mounting Weights

Catalog 602-2 27

Unit Refrigerant

lb. (kg)

Evaporator

Volume, gal (L)

Insulation

sq. ft. (m2)

Number of

Valves

145S

E2209

9 ft.

550 (250)

38 (145)

66 (6.1)

150D

E2212

12 ft.

800 (363)

45 (170)

90 (8.3)

290D

E2612

12 ft.

1100 (500)

72 (273)

102 (9.4)

Maximum

Capacity lb. (kg)

Water

gal. (L)

145S, 145D

C2009

9 ft.

728 (330)

47 (147)

150D

C2012

12 ft.

971 (440)

62 (236)

250D

C2209

9 ft.

883 (401)

50 (223)

290D

400D

Physical Data

Evaporator

Refrigerant-side design pressure is 200 psi (1379 kPa). Water-side is 150 psi (1034 kPa).

Approximate total square footage of insulation surface required for individual packaged chillers is

Table 12, Evaporator Physical Data

tabulated by evaporator code and can be found below. The suction elbow and compressor also require insulation.

WMC

Model

250D

400D

Notes:

1. Refrigerant charge is approximate since the actual charge will depend on other variables. Actual charge will be shown on the unit nameplate and is tabulated above.

2. Water capacity is based on standard tube configuration and standard dished heads.

Evaporator

Model

E2609 9 ft. 600 (272) 61 (231) 76 (7.1) 1

E3012 12 ft. 1240 (562) 88 (336) 114 (11) 1

Tube

Length

Charge

Water

Area

Relief

Condenser

With positive pressure systems, the pressure variance with temperature is always predictable and the vessel design and pressure relief protection are based upon pure refrigerant characteristics. R-134a requires ASME vessel design, inspection and testing and uses springloaded pressure relief valves. When an over-

Table 13, Condenser Physical Data

WMC

Model

Condenser

Model

Tube

Length

Pumpdown

pressure condition occurs, spring-loaded relief valves purge only that quantity of refrigerant required to reduce system pressure to the valve’s set pressure, and then close.

Refrigerant-side design pressure is 200 psi (1380 kPa). Water-side design is 150 psi (1034 kPa).

Volume

Number of

Relief Valves

C2212 12 ft. 1174 (533) 72 (273) 2 C2612 12 ft. 1676 (760) 111 (419) 2

Notes:

1. Condenser pumpdown capacity based on 90% full at 90°F.

2. Water capacity based on standard configuration and standard heads and can be less with lower tube counts.

3. See Relief Valves section for additional information.

28 Catalog 602-2

Relief Valves

As a safety precaution and to meet code requirements, each chiller is equipped with pressure relief valves located on the condenser and evaporator for the purpose of relieving excessive refrigerant pressure (caused by equipment malfunction, fire, etc.) to the atmosphere. Most codes require that relief valves be vented to the outside of a building and this is a desirable practice for all installations. Relief piping connections to the relief valves must have flexible connectors.

Note: Remove plastic shipping plugs (if installed) from the inside of the valves prior to making pipe connections. Whenever vent piping is installed, the lines must be run in accordance with local code requirements; where local codes do not apply, the latest issue of ANSI/ASHRAE Standard 15 code recommendations must be followed.

• Condensers have two relief valves as a set with a three-way valve separating the two valves. One valve

remains active at all times and the second valve acts as a standby.

• Evaporators have a single valve. Each valve has a 1.0-inch female NPT connection.

• Each suction line on dual compressor units has a single 200 psig relief valve rated at 6.9 lb/min air with a

3/8-inch flare connection.

Vessel valve capacity is 75.5 lb/min air.

Figure 13, Typical Vent Piping

Catalog 602-2 29

Electrical Data

CAUTION

MCA

Disconnect switch will also be a circuit breaker for short circuit protection.

the power block or disconnect switch .

POWER

[Amp]

79 - 80

110 1 99 - 100

175

150

3 GA

81 - 88

110 1 101 - 110

175

150

2 GA

89 - 92

110 1 111 - 115

200

150

2 GA

93 - 99

110 1 116 - 123

200

150

1 GA

100

110 1 125

225

150

1 GA

101 - 104

132 1 126 - 130

225

200

1 GA

105 - 111

132 1 131 - 138

225

200 3 1/0

112 - 120

132 1 140 - 150

250

200 3 1/0

121 - 133

154 1 151 - 166

250

225 3 2/0

134 - 140

154 1 167 - 175

300

225 3 2/0

141 - 150

165 1 176 - 187

300

225 3 3/0

General Note: The RLA for use in the following tables is obtained by the selection of a specific unit by

Daikin. When shipped, a unit will bear the specific RLA, stamped on the nameplate, for the selected operating conditions.

The RLA stamped on the unit may be lower than the minimum shown in the following tables, in which case the

minimum table value must be used for wire sizing.

Table 14, Electrical Acronyms and Notes

ACRONYMS:

LRA

N/A

MOP

RLA

NOTES:

2 RLA and LRA data is for each compressor

3 Wire size per NEC 2008, table 310.16, 75° C, copper

4 MOP size per NEC 2008, section 440.22(a) for air conditioning and refrigeration equip.

Disconnect switch

Locked rotor amps

Not available

Minimum circuit ampacity

Maximum overcurrent protection

Power block

Rated load amps

On single-point connection a circuit breaker for short circuit protection is installed downstream of

MC 145S, Single Compressor

Table 15, WMC 145S-B, 3/60/460

SINGLE POINT CONNECTION, STANDARD

COMPRESSOR CHILLER

RLA [Amp]

30 Catalog 602-2

LRA

[Amp]

QTY

MCA

[Amp]

MOP [Amp]

Disc.Swt

[Amp]

BLOCK

N/A

WIRE

QTY

WIRE

GAUGE

POWER

[Amp]

95 – 99

132 1 119 – 124

225

200

1 GA

100 – 104

132 1 125 – 130

225

200

1 GA

105 – 111

132 1 132 – 139

225

200 3 1/0

112 – 120

132 1 140 – 150

250

200 3 1/0

121 - 133

165 1 152 – 167

250

225 3 2/0

134 – 140

165 1 168 – 175

300

225 3 2/0

141 – 150

165 1 177 – 188

300

225 3 3/0

151 – 155

176 1 189 – 194

300

250 3 3/0

156 – 160

176 1 195 – 200

350

250 3 3/0

161 – 170

187 1 201 - 213

350

250 3 3/0

DISC.

[Amp]

POWER

[Amp]

108 - 111

149 1 135 - 139

225

200

1/0

112 - 120

149 1 140 - 150

250

200 3 1/0

121 - 133

149 1 152 - 167

250

225 3 2/0

134 - 135

149 1 168 - 169

300

225 3 2/0

136 - 140

187 1 170 – 175

300

225 3 2/0

141 - 155

187 1 177 - 194

300

250 3 3/0

156 - 170

187 1 195 - 213

350

250 3 3/0

[Amp]

52 - 53

72 2 117 - 120

150

250

760 3 1 GA

54 - 57

72 2 122 - 129

175

250

760 3 1 GA

58 - 61

72 2 131 - 138

175

250

760 3 1/0

62 - 65

72 2 140 - 147

200

250

760 3 1/0

68 - 69

94 2 153 - 156

200

250

760 3 2/0

70 - 76

94 2 158 - 171

225

250

760 3 2/0

94 2 174

250

760 3 2/0

78 - 85

94 2 176 - 192

250

760 3 3/0

89 - 92

124

201 - 207

250

760 3 4/0

93 - 102

124

210 - 230

300

400

760 3 4/0

Table 16, WMC 145S-B, 3/50/400

SINGLE POINT CONNECTION, STANDARD

COMPRESSOR CHILLER

RLA [Amp]

LRA

[Amp]

QTY

MCA

[Amp]

Table 17, WMC 145S-B, 3/50/380

SINGLE POINT CONNECTION, STANDARD

COMPRESSOR CHILLER

RLA

[Amp]

LRA

[Amp]

QTY

MCA

[Amp]

MOP [Amp]

MOP

[Amp]

Disc.Swt

[Amp]

SWT.

BLOCK

N/A

BLOCK

WIRE

QTY

WIRE

QTY

WIRE

GAUGE

WIRE

GAUGE

WMC 145D & 150D, Dual Compressor

Table 18, WMC 145D-B & WMC 150D-B, 3/60/460

SINGLE POINT CONNECTION, STANDARD

COMPRESSOR (EACH) CHILLER

RLA

[Amp]

LRA

[Amp]

QTY

MCA

[Amp]

MOP

[Amp]

DISC.

SWT.

N/A

POWER

BLOCK

WIRE

QTY

WIRE

GAUGE

103 - 107 124 2 232 - 241 300 400 760 3 250 MCM 108 - 113 124 2 243 - 255 350 400 760 3 250 MCM

Catalog 602-2 31

DISC.

[Amp]

POWER

[Amp]

72 2 65

110

100

N/A

6 GA

53 - 55

72 2 67 - 69

110

100

N/A

4 GA

56 - 65

72 2 70 - 82

125

100

N/A

4 GA

94 2 85

150

125

N/A

4 GA

69 - 77

94 2 87 - 97

150

125

N/A

3 GA

78 - 80

94 2 98 - 100

175

125

N/A

3 GA

81 - 85

94 2 102 - 107

175

150

N/A

2 GA

90 - 92

124

113 - 115

200

150

N/A

2 GA

93 - 99

124

117 - 124

200

150

1 GA

100 - 104

124

125 - 130

225

150

1 GA

105 - 111

124

132 - 139

225

150

N/A

1/0

112 - 113

124

140 - 142

250

150

1/0

DISC.

[Amp]

POWER

[Amp]

71 2 115

150

250

760

2 GA

52 - 53

71 2 117 - 120

150

250

760

1 GA

54 - 57

71 2 122 - 129

175

250

760

1 GA

58 - 61

71 2 131 - 138

175

250

760 3 1/0

62 - 64

71 2 140 - 144

200

250

760 3 1/0

65 - 69

88 2 147 - 156

200

250

760 3 2/0

70 - 76

88 2 158 - 171

225

250

760 3 2/0

88 2 174

250

760 3 2/0

78 - 80

88 2 176 - 180

250

760 3 3/0

81 - 88

110 2 183 - 198

250

760 3 3/0

89 - 92

110 2 201 - 207

250

760 3 4/0

93 - 100

110 2 210 - 225

300

250

760 3 4/0

DISC.

[Amp]

POWER

[Amp]

51 - 52

71 2 64 - 65

110

100

6 GA

53 - 55

71 2 67 - 69

110

100

4 GA

56 - 64

71 2 70 - 80

125

100

4 GA

67 - 68

88 2 84 - 85

150

125

N/A

4 GA

69 - 77

88 2 87 - 97

150

125

3 GA

78 - 80

88 2 98 - 100

175

125

3 GA

81 - 88

110 2 102 - 110

175

150

2 GA

89 - 92

110 2 112 - 115

200

150

2 GA

93 - 99

110 2 117 - 124

200

150

N/A

1 GA

100

110 2 125

225

150

1 GA

MULTI-POINT CONNECTION, OPTIONAL

COMPRESSOR (EACH) CHILLER (PER CIRCUIT)

RLA

[Amp]

LRA

[Amp]

QTY

MCA

[Amp]

MOP

[Amp]

Table 19, WMC 145D-B & WMC 150D-B, 3/60/575

SINGLE POINT CONNECTION, STANDARD

COMPRESSOR (EACH) CHILLER

RLA

[Amp]

LRA

[Amp]

QTY

MCA

[Amp]

MOP

[Amp]

SWT.

BLOCK

N/A

BLOCK

WIRE

QTY

WIRE

QTY

WIRE

GAUGE

WIRE

GAUGE

MULTI-POINT CONNECTION, OPTIONAL

COMPRESSOR (EACH) CHILLER (PER CIRCUIT)

RLA

[Amp]

32 Catalog 602-2

LRA

[Amp]

QTY

MCA

[Amp]

MOP

[Amp]

SWT.

BLOCK

N/A

WIRE

QTY

WIRE

GAUGE

SINGLE POINT CONNECTION, STANDARD

DISC.

[Amp]

POWER

[Amp]

68 – 69

153 – 159

250

200

760 3 2/0

70 – 78

158 0 171

225

400

760 3 2/0

94 2 174

250

400

760 3 2/0

78 – 85

176 – 192

250

400

760 3 3/0

89 – 92

124

201 – 207

250

400

760 3 4/0

93 – 102

124

210 – 230

300

400

760 3 4/0

103 – 107

124

232 – 241

300

400

760

250 MCM

108 – 113

124

243 – 255

350

400

760

250 MCM

114 - 122

134

257 - 275

350

400

760

300 MCM

[Amp]

94 2 85

150

250 - 3

4 GA

69 - 77

94 2 87 - 97

150

250 - 3

3 GA

78 - 80

94 2 98 - 100

175

250 - 3

3 GA

81 - 85

102 - 107

175

250 - 3

2 GA

89 - 92

124

112 - 115

200

250 - 3

2 GA

93 - 99

124

117 - 124

200

250 - 3

1 GA

100 - 104

124

125 - 130

225

400 - 3

1 GA

105 - 111

124

132 - 139

225

400 - 3

1/0

112 - 113

124

140 - 142

250

400 - 3

1/0

114 - 120

134

143 - 150

250

400 - 3

2/0

121 - 122

134

152 - 153

250

400 - 3

2/0

Table 20, WMC 145D-B & WMC 150D-B, 3/50/400

COMPRESSOR (EACH) CHILLER

RLA

[Amp]

MULTI-POINT CONNECTION, OPTIONAL

COMPRESSOR (EACH) CHILLER (PER CIRCUIT)

RLA

[Amp]

LRA

[Amp]

LRA

[Amp]

QTY

MCA

[Amp]

MCA

[Amp]

MOP

[Amp]

MOP

[Amp]

SWT.

DISC. SWT.

BLOCK

POWER

BLOCK

WIRE

QTY

WIRE

QTY

WIRE

GAUGE

WIRE

GAUGE

Catalog 602-2 33

DISC.

[Amp]

POWER

[Amp]

79 to 88

110

178 to 198

250

760 3 3/0

89 to 92

110

201 to 208

250

760 3 4/0

93 to 100

110

210 to 226

300

250

760 3 4/0

101 to 107

132

228 to 241

300

400

760

250 MCM

108 to 113

132

244 to 255

350

400

760

250 MCM

114 to 120

132

257 to 271

350

400

760

300 MCM

121 to 123

154

273 to 277

350

400

760

300 MCM

124 to 126

154

280 to 284

400

760

300 MCM

127 to 137

154

286 to 309

400

760

350 MCM

138

154 2 311

400

760

400 MCM

139 to 140

154

313 to 316

450

400

760

400 MCM

141 to 149

165

318 to 335

450

400

760

400 MCM

150

165

338 Amps

450

400

760

500 MCM

DISC.

[Amp]

POWER

[Amp]

79 to 80

110

99 to 100

175

150

N/A 3 3 GA

81 to 88

110

101 to 110

175

150

N/A 3 2 GA

89 to 92

110

111 to 115

200

150

N/A 3 2 GA

93 to 99

110

116 to 123

200

150

N/A 3 1 GA

100

110 2 125

225

150

N/A 3 1 GA

101 to 104

132

126 to 130

225

200

N/A 3 1 GA

105 to 111

132

131 to 138

225

200

N/A 3 1/0

112 to 120

132

140 to 150

250

200

N/A 3 1/0

121 to 133

154

151 to 166

250

225

N/A 3 2/0

134 to 140

154

167 to 175

300

225

N/A 3 2/0

141 to 150

165

176 to 187

300

225

N/A 3 3/0

WMC 250D & 290D, Dual Compressor

Table 21, WMC 250D-B & WMC 290D-B, 3/60/460

SINGLE POINT CONNECTION, STANDARD

COMPRESSOR (Each) CHILLER

RLA

[Amp]

MULTI POINT CONNECTION, OPTIONAL

COMPRESSOR (EACH) CHILLER (PER CIRCUIT)

RLA

[Amp]

LRA

[Amp]

LRA

[Amp]

QTY

QTY MCA [Amp]

MCA

[Amp]

MOP

[Amp]

MOP

[Amp]

SWT.

BLOCK

WIRE

QTY

WIRE

QTY

WIRE

GAUGE

WIRE

GAUGE

34 Catalog 602-2

DISC.

[Amp]

POWER

[Amp]

95 - 99

132

214 - 223

300

200

760 3 1 GA

100 - 102

132

225 - 230

300

400

760

250 MCM

103 - 107

132

232- 241

300

400

760

250 MCM

108 - 113

132

243 - 255

350

400

760

250 MCM

114 - 120

132

257 - 270

350

400

760

300 MCM

121 - 123

165

273 - 277

350

400

760

300 MCM

124 - 126

165

279 - 284

400

760

300 MCM

127 - 137

165

286 - 309

400

760

350 MCM

138

165 2 311

400

760

400 MCM

139 - 148

165

313 - 333

450

400

760

400 MCM

149 - 150

165

336 - 338

450

400

760

500 MCM

151 - 153

176

340 - 345

450

400

760

500 MCM

154 - 160

176

347 - 360

500

400

760

500 MCM

161 - 169

187

363 - 381

500

400

760

500 MCM

170

187 2 383

550

400

760

500 MCM

DISC.

[Amp]

POWER

[Amp]

95 - 99

132

119 - 124

225

200

N/A 3 1 GA

100 - 104

132

125 - 130

225

200

N/A 3 1 GA

105 - 111

132

132 - 139

225

200

N/A 3 1/0

112 - 120

132

140 - 150

250

200

N/A 3 1/0

121 - 133

165

152 - 167

250

225

N/A 3 2/0

134 - 140

165

168 - 175

300

225

N/A 3 2/0

141 - 150

165

177 - 188

300

225

N/A 3 3/0

151 - 155

176

189 - 194

300

250

N/A 3 3/0

156 - 160

176

195 - 200

350

250

N/A 3 3/0

161 - 170

187

202 - 212

350

250

N/A 3 3/0

Table 22, WMC 250D-B & WMC 290D-B, 3/50/400

SINGLE POINT CONNECTION, STANDARD

COMPRESSOR (EACH) CHILLER

RLA

[Amp]

MULTI POINT CONNECTION, OPTIONAL

COMPRESSOR (EACH) CHILLER (PER CIRCUIT)

RLA

[Amp]

LRA

[Amp]

LRA

[Amp]

QTY MCA [Amp]

MOP

[Amp]

MOP

[Amp]

SWT.

BLOCK

WIRE

QTY

WIRE

QTY

WIRE

GAUGE

WIRE

GAUGE

Catalog 602-2 35

DISC.

[Amp]

POWER

[Amp]

108 - 113

149

243 - 255

350

400

760

250 MCM

114 - 123

149

257 - 277

350

400

760

300 MCM

124 – 126

149

279- 284

400

760

300 MCM

127 – 135

149

286 - 304

400

760

350 MCM

136 - 137

187

306 - 309

400

760

400 MCM

138

187 2 311

400

760

400 MCM

139 - 148

187

313 - 333

450

400

760

400 MCM

149 - 150

187

336 - 338

450

400

760

500 MCM

151 - 153

340 - 345

450

400

760

500 MCM

154 - 169

187

347 - 381

500

400

760

500 MCM

170

383

550

400

760

500 MCM

DISC.

[Amp]

POWER

[Amp]

108 - 111

149

135 - 139

225

200

N/A 3 1/0

112 - 120

149

140 - 150

250

200

N/A 3 1/0

121 - 133

149

152 - 167

250

225

N/A 3 2/0

134 – 135

149

168 - 169

300

225

N/A 3 2/0

136 - 140

170 - 175

300

225

N/A 3 2/0

141 - 155

177 - 194

300

250

N/A 3 3/0

156 - 170

195 - 213

350

250

N/A 3 3/0

Table 23, WMC 250D-B & WMC 290D-B, 3/50/380

SINGLE POINT CONNECTION, STANDARD

COMPRESSOR (EACH) CHILLER

RLA

[Amp]

MULTI POINT CONNECTION, OPTIONAL

COMPRESSOR (EACH) CHILLER (PER CIRCUIT)

RLA

[Amp]

LRA

[Amp]

187

LRA

[Amp]

QTY MCA [Amp]

MOP

[Amp]

MOP

[Amp]

SWT.

BLOCK

WIRE

QTY

WIRE

QTY

WIRE

GAUGE

WIRE

GAUGE

187

36 Catalog 602-2

DISC.

[Amp]

POWER

[Amp]

MCM

300

MCM

300

MCM

350

MCM

400

MCM

500

MCM

DISC.

[Amp]

POWER

[Amp]

WMC 400D 3/60/460 ONLY

Table 24, WMC 400D-B, 3/60/460

SINGLE POINT CONNECTION, STANDARD

COMPRESSOR (EACH) CHILLER

RLA

[Amp]

118 – 123 165 266 – 277 350 400 760

124 - 125 165 279 - 284 400 400 760

126 176 2 284 400 400 760 3

127 to 137 176 2 286 to 309 400 400 760 3

138 176 2 311 400 400 760 3

139 to 148 176 2 313 to 334 450 400 760 3

149 to 153 176 2 336 to 345 450 400 760 3

154 to 160 176 2 347 to 361 500 400 760 3

161 – 166 187 2 363 – 376 500 400 760 3

169 187 2 381 500 400 760 3 (2) 3/0

170 187 2 383 500 400 760 3 (2) 3/0

MULTI-POINT CONNECTION, OPTIONAL

COMPRESSOR (EACH) CHILLER (PER CIRCUIT)

LRA

[Amp]

QTY

MCA

[Amp]

MOP

[Amp]

SWT.

BLOCK

WIRE

QTY

WIRE

GAUGE

300

400

500

RLA

[Amp]

126 to 133 176 2 157 to 166 250 250 N/A 3 2/0

134 to 140 176 2 167 to 175 300 250 N/A 3 2/0

141 to 155 176 2 176 to 193 300 250 N/A 3 3/0

156 to 160 176 2 195 to 200 350 250 N/A 3 3/0

LRA

[Amp]

QTY

MCA

[Amp]

MOP

[Amp]

SWT.

BLOCK

WIRE

QTY

WIRE

GAUGE

Catalog 602-2 37

Notes for following field wiring diagram

1. COMPRESSOR FRONT END BOX IS FACTORY

MOUNTED AND WIRED. ALL LINE SIDE WIRING MUST BE WIRED IN ACCORDANCE WITH THE NEC AND BE MADE WITH COPPER WIRE AND COPPER LUGS ONLY. USE ONLY COPPER SUPPLY WIRES WITH AMPACITY BASED ON 75°C CONDUCTOR RATING. MAIN POWER WIRING BETWEEN THE FRONT END BOX AND COMPRESSOR TERMINALS IS FACTORY INSTALLED.

2. MINIMUM WIRE SIZE FOR 115 VAC IS 12 GA. FOR A

MAXIMUM LENGTH OF 50 FEET. IF GREATER THAN 50 FEET REFER TO Daikin FOR RECOMMENDED WIRE SIZE MINIMUM. WIRE SIZE FOR 24 VAC IS 18 GA. ALL WIRING TO BE INSTALLED AS NEC CLASS 1 WIRING SYSTEM. ALL 24 VAC WIRING MUST BE RUN IN SEPARATE CONDUIT FROM 115 VAC WIRING. WIRING MUST BE WIRED IN ACCORDANCE WITH NEC AND CONNECTION TO BE MADE WITH COPPER WIRE ANC COPPER LUGS ONLY.

3. FOR OPTIONAL SENSOR WIRING SEE UNIT

CONTROL DIAGRAM. IT IS RECOMMENDED THAT DC WIRES BE RUN SEPARATELY FROM 115 VAC WIRING.

4. A CUSTOMER FURNISHED 24 OR 120 VAC POWER

FOR ALARM RELAY COIL MAY BE CONNECTED BETWEEN UTB1 TERMINALS 84 POWER AND 81 NEUTRAL OF THE CONTROL PANEL. FOR NORMALLY OPEN CONTACTS WIRE BETWEEN 82 &

81. FOR NORMALLY CLOSED WIRE BETWEEN 83 &

81. THE ALARM IS OPERATOR PROGRAMMABLE. MAXIMUM RATING OF THE ALARM RELAY COIL IS 25VA.

PUMP. THEY MUST BE SUITABLE FOR 24 VAC AND LOW CURRENT APPLICATION.

7. CUSTOMER SUPPLIED 115 VAC 20 AMP POWER FOR OPTIONAL EVAP AND COND WATER PUMP CONTROL POWER AND TOWER FANS IS SUPPLIED TO UNIT CONTROL TERMINALS (UTB1) 85 POWER / 86 NEUTRAL, PE EQUIPMENT GROUND.

8. OPTIONAL CUSTOMER SUPPLIED 115 VAC 25 VA MAXIMUM COIL RATED CHILLED WATER PUMP RELAY (EP1 AND EP2) MAY BE WIRED AS SHOWN. THIS OPTIONAL WILL CYCLE THE CHILLED WATER PUMP IN RESPONSE TO CHILLER DEMAND.

9. THE CONDENSER WATER PUMP MUST CYCLE WITH THE UNIT. A CUSTOMER SUPPLIED 115 VAC 25 VA MAXIMUM COIL RATED CONDENSER WATER PUMP RELAY (CP1 & 2) IS TO BE WIRED AS SHOWN. UNITS WITH FREE COOLING MUST HAVE CONDENSER WATER ABOVE 60° BEFORE STARTING.

10. OPTIONAL CUSTOMER SUPPLIED 115 VAC 25 VA MAXIMUM COIL RATED COOLING TOWER FAN RELAYS (C1 – C2 STANDARD, C3 – C4 OPTIONAL) MAY BE WIRED AS SHOWN. THIS OPTION WILL CYCLE THE COOLING TOWER FANS IN ORDER TO MAINTAIN UNIT HEAD PRESSURE.

11. AUXILIARY 24 VAC RATED CONTACTS IN BOTH

THE CHILLED WATER AND CONDENSER WATER PUMP STARTERS SHOULD BE WIRED AS SHOWN.

5. REMOTE ON/OFF CONTROL OF UNIT CAN BE ACCOMPLISHED BY INSTALLING A SET OF DRY CONTACTS BETWEEN TERMINALS 70 AND 54.

6. THERMAL DISPERSION FLOW SWITCHES FOR THE EVAPORATOR AND CONDENSER ARE FACTORY MOUNTED AS STANDARD AND PROVIDE ADEQUET FLOW LOSS PROTECTION. IF DESIRED, ADDITIONAL FLOW OR PRESSURE DIFFERENTIAL SWITCHES CAN BE CUSTOMER SUPPLIED, MOUNTED AND WIRED AS SHOWN. A FACTORY WIRED EVAP FLOW SWITCH IS CONNECTED BETWEEN EF1 & EF2, AND A COND FLOW SWITCH BETWEEN CF1 & CF2. ANY ADDITIONAL DEVICES MUST BE WIRED IN SERIES WITH THEM. IF FIELD SUPPLIED PRESSURE DIFFERENTIAL SWITCHES ARE USED THEN THESE MUST BE INSTALLED ACROSS THE VESSEL AND NOT THE

38 Catalog 602-2

Figure 14, Field Wiring Diagram

See notes on page 38.

Catalog 602-2 39

Power Factor Correction

Do not use power factor correction capacitors with WMC chillers. Doing so can cause harmful electrical resonance in the system. Correction capacitors are not necessary since VFDs inherently maintain high power factors. The full load power factor exceeds 0.90 for all units.

VFD Line Harmonics

Despite their many benefits, care must be taken when applying VFDs due to the effect of line harmonics on the building electric system. VFDs cause distortion of the AC line because they are nonlinear loads, that is, they don't draw sinusoidal current from the line. They draw their current from only the peaks of the AC line, thereby flattening the top of the voltage waveform. Some other nonlinear loads are electronic ballasts and uninterruptible power supplies.

Line harmonics and their associated distortion can be critical to ac-drives for three reasons:

1. Current harmonics can cause additional

heating to transformers, conductors, and switchgear.

2. Voltage harmonics upset the smooth voltage

sinusoidal waveform.

3. High-frequency components of voltage

distortion can interfere with signals transmitted on the AC line for some control systems.

The harmonics of concern are the 5

. Even harmonics, harmonics divisible by three, and high magnitude harmonics are usually not a problem.

Current Harmonics

An increase in reactive impedance in front of the VFD helps reduce the harmonic currents. Reactive impedance can be added in the following ways:

1. Mount the drive far from the source

transformer.

2. Add line reactors. They are standard

equipment on Magnitude chillers.

3. Use an isolation transformer.

4. Use a harmonic filter.

Voltage Harmonics

Voltage distortion is caused by the flow of harmonic currents through a source impedance. A reduction in source impedance to the point of common coupling (PCC) will result in a reduction

, 7th, 11th, and

in voltage harmonics. This can be done in the following ways:

1. Keep the PCC as far from the drives (close

to the power source) as possible.

2. Increase the size (decrease the impedance)

of the source transformer.

3. Increase the capacity (decrease the

impedance) of the busway or cables from the source to the PCC.

4. Make sure that added reactance is

"downstream" (closer to the VFD than the source) from the PCC.

Line Reactors

Five-percent line reactors are standard equipment on Magnitude chillers and located in each compressors power panel. They are employed to improve the power factor by reducing the effects of harmonics.

Optional Harmonic Filter

The Institute of Electrical and Electronics Engineers (IEEE) has developed a standard (IEEE519) that defines acceptable limits of site specific system current and voltage distortion. The designer may wish to consult this standard to ensure acceptable levels of harmonic distortion are maintained.

Harmonic filters are available as a field mounted and wired accessory, wired from the chiller power panel circuit breakers out to the filter and back to the chiller’s power fuses and contactors. They limit current distortion and improve unit power factor. The filters are mounted in a UL Type 1 enclosure and are UL and cUL listed. The smallest filter Model HG60 is wall mounted, the balance are floor mounted.

The harmonic filter package includes power blocks, a 5% impedance line reactor, tuning reactor, a contactor and a capacitor bank. When the harmonic filter is selected, the normal line reactor in the unit’s main electrical panel is removed at the factory.

A power monitoring package is included as standard. It consists of indication lights for filter operation and fuse failure on the HG60 size. Filters from size HG75 and up consist of a display board showing operating information such as current and voltage total harmonic distortion, true power factor and a series of fault and protection codes. It can be programmed to shut off under fault conditions or when the drive goes into a fault condition.

40 Catalog 602-2

The filter size selection is based on the WMC Rated Load Amps (RLA) as determined by a computerized chiller selection program. The local Daikin sales office can provide selection and pricing information.

ilter dimensions, weights and terminal size range

F can be found in the WMC Installation manual IM 1029-2.

EMI (Electro Magnetic Interference) and RFI (Radio Frequency Interference) Filter

This filter is a factory-installed option. The terms EMI and RFI are often used interchangeably. EMI is actually any frequency of electrical noise, whereas RFI is a specific subset of electrical noise on the EMI spectrum. There are two types of EMI. The power line noise emissions associated with variable frequency and variable speed drives can cause disturbances in nearby equipment. Typical disturbances include:

• Dimmer and ballast instability

• Lighting disturbances such as flashing

• Poor radio reception

• Poor television reception

• Instability of control systems

• Flow meter totalizing

• Flow metering fluctuation

• Radar disruption

• Sonar disruption

• Computer system failures loss of data

Conducted EMI is unwanted high frequencies that ride on the AC wave form.

EMI-Radiated EMI is similar to an unwanted radio broadcast being emitted from the power lines. There are many pieces of equipment that can generate EMI, variable frequency drives included. In the case of variable frequency drives, the electrical noise produced is primarily contained in the switching edges of the pulse width modulation (PWM) controller.

As the technology of drives evolves, switching frequencies increase. These increases also increase the effective edge frequencies produced, thereby increasing the amount of electrical noise.

FD Harmonic Considerations

Catalog 602-2 41

Application Considerations

Location

WMC chillers are intended only for installation in an indoor or weather protected area 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).

Optimum Water Temperatures and Flow

A key to improving energy efficiency for any chiller is minimizing the compressor pressure lift. Reducing the lift reduces the compressor work and its energy consumption per unit of output. The chiller typically has the largest motor of any component in a chilled water system.

Higher leaving chilled water temperatures

Warmer leaving chilled water temperatures will raise the compressor’s suction pressure and decrease the lift, improving efficiency. Using 45°F (7.0°C) leaving water instead of 42°F (5.5°C) will make a significant improvement.

Evaporator temperature drop

The industry standard has been a 10-degree F (5.5 degree C) temperature drop in the evaporator. Increasing the drop to 12 or 14 degrees F (6.6 or

7.7 degrees C) will improve the evaporator heat transfer, raise the suction pressure, and improve chiller efficiency. Chilled water pump energy will also be reduced.

Condenser entering water temperature

As a general rule, a one-degree drop in condenser entering water temperature will reduce chiller energy consumption by two percent. Cooler water lowers the condensing pressure and reduces compressor work. One or two degrees can make a noticeable difference. The incremental cost of a larger tower can be small and provide a good return on investment.

Condenser water temperature rise

The industry standard of 3 gpm/ton or about a 9.5degree delta-T seems to work well for most applications. Reducing condenser water flow to lower pumping energy will increase the water temperature rise, resulting in an increase in the compressor’s condensing pressure and energy consumption. This is usually not a productive strategy.

Chilled Water Temperature

The maximum temperature of water entering the chiller on standby must not exceed 110° F (43° C). Maximum temperature entering on start-up must not exceed 90°F (32.2°C). Minimum chilled water leaving temperature without antifreeze is approximately 36°F (2.2°C).

Piping

Piping must be adequately supported to remove weight and strain on the chiller’s fittings and connections. Be sure piping is adequately insulated. Install a cleanable 20-mesh water strainer at the inlet of the evaporator and condenser. Install enough shutoff valves to permit draining water from the evaporator or condenser without draining the complete system.

Catalog 602-2 42

Condenser Water

CAUTION

≈

Temperature

When the ambient wet bulb temperature is lower than design, the entering condenser water temperature can be allowed to fall, improving chiller performance. As chillers are selected for lower kW per ton, the cooling tower fan motor power becomes a higher percentage of the peak load chiller power. To obtain the lowest possible energy cost, the interaction between compressor power, fan power, and pumping power should all be studied.

Even with tower fan control, some form of water flow control such as tower bypass or variable speed condenser water flow may be required to maintain minimum acceptable entering condenser water temperatures. must be used. The MicroTech II control is capable of controlling tower fans and bypass valve directly or indirectly through an output signal to the building automation system ensure stable and efficient chiller operation.

Figure 15 and Figure 16 illustrate two temperature actuated tower bypass arrangements. The “Cold Weather” scheme, Figure 16, provides better startup under cold ambient air temperature conditions. The bypass valve and piping are indoors and thus warmer, allowing for warmer water to be immediately available to the condenser. The check valve may be required to prevent air at the pump inlet.

Freeze Notice: The evaporator and

condenser are not

be blown out to completely remove water to

help prevent freeze up.

Figure 15, Tower Bypass, Mild Weather Operation

self-draining. Both must

Figure 16, Tower Bypass, Cold Weather Operation (Bypass Indoors)

Pumps

To avoid the possibility of objectionable harmonics in the system piping, 4-pole, 1800/1500 rpm system pumps should be used. 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.

Include thermometers and pressure gauges at the chiller inlet and outlet connections and install air vents at the high points of piping. Where noise and vibration are critical and the unit is mounted on spring isolators, flexible piping and conduit connections are necessary. Install a flow switch or pressure differential switch in the leaving chilled water line, if one is not factory installed.

Variable Speed Chilled Water Pumping

Variable speed pumping involves changing system water flow relative to cooling load changes. Daikin centrifugal chillers are designed for this duty with two limitations.

irst, the rate of change in the water flow needs

F to be slow, not greater than 10% of the change per minute. The chiller needs time to sense a load change and respond.

Second, the water velocity in the vessels must be 3 to 10 fps (0.91 and 3.0 m/sec). Below 3 fps (0.91 m/sec), laminar flow occurs which reduces heat transfer and causes erratic operation. Above 10 fps (3.0 m/sec), excessively high pressure drops and tube erosion occur. These flow limits can be

Catalog 602-2 43

determined from the Daikin selection program.

We recommend variable flow only in the evaporator because there is virtually no change in chiller efficiency compared to constant flow. In other words, there is no chiller energy penalty and considerable pumping energy can be saved. Although variable speed pumping can be done in the condenser loop, it is usually unwise. The intent of variable flow is to reduce pump horsepower. However, reducing condenser water flow increases the chiller’s condensing pressure, increasing the lift that the compressor must overcome which, in turn, increases the compressor’s energy use. Consequently, pump energy savings can be lost because the chiller operating power is significantly increased.

Low condenser flow and tube velocities can cause premature tube fouling and subsequent increased compressor power consumption. Increased cleaning and/or chemical use can also result.

Vibration Mounting

The Magnitude chillers are almost vibration-free. Consequently, floor mounted spring isolators are not usually required. Rubber mounting pads are shipped with each unit. It is wise to continue to use piping flexible connectors to reduce sound transmitted into the pipe and to allow for expansion and contraction.

during the low load period and the desired cycle time for the compressors.

Assuming that there are no sudden load changes and the chiller plant has reasonable turndown, a rule of thumb of “gallons of water volume equal to two to three times the chilled water gpm flow rate” is often used.

A properly designed storage tank should be added if the system components do not provide sufficient water volume.

Pump Control

Operation of the chilled water pump can be to:

1) cycle the pump with the unit

2) operate continuously

3) cycle automatically by a remote source

The cooling tower pump must cycle with the compressor. The holding coil of the cooling tower pump motor starter must be rated at 115 volts, 60 Hz, with a maximum volt-amperage rating of 100. A control relay is required if the voltage-amperage rating is exceeded. See the Field Wiring Diagram on page 39 or in the cover of control panel for proper connections.

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 alarm used must not draw more than 10-volt amperes.

System Water Volume

All chilled water systems need adequate time to recognize a load change, respond to that load change and stabilize, without undesirable short cycling of the compressors or loss of control. In air conditioning systems, the potential for short cycling usually exists when the building load falls below the minimum chiller plant capacity or on close-coupled systems with very small water volumes.

Some of the things the designer should consider when looking at water volume are the minimum cooling load, the minimum chiller plant capacity

System analysis

Although Daikin is a proponent of analyzing the entire system, it is generally effective to place the chiller in the most efficient mode because it is a large energy consumer.

The Daikin Energy excellent tool to investigate the entire system efficiency, quickly and accurately. It is especially good at comparing different system types and operating parameters. Contact you local Daikin sales office for assistance on your particular application.

Analyzer program is an

44 Catalog 602-2

Retrofit Knockdown

It is estimated that fifty percent of retrofit applications require partial or complete disassembly of the chiller. Daikin offers two solutions to the disassembly and reassembly effort on Magnitude chillers.

Magnit disassembly due to the small compressor size, simplified refrigerant piping and the absence of a lubrication system with its attendant components and piping. Two knockdown arrangements are available as options.

Contact local Daikin Factory Service for pricing and scheduling of required installation supervision.

TYPE IV: The compressor(s), control panel, and compressor power panel(s) are removed at the factory and put on skids. The stripped vessel stack is shipped as a single piece. Discharge piping, liquid line and the compressor cooling line(s) are removed and crated. All associated wiring and piping possible will remain on the vessel stack.

ude chillers are relatively easy to

The unit is shipped without refrigerant, which must be furnished and charged by the contractor.

Type IV reduces the height and weight of the unit. The width is determined by the evaporator tube sheet and is not decreased with this arrangement, nor is the overall unit length. If further weight or size reduction is required, the vessels can be separated by unbolting them.

TYPE V: The unit ships fully assembled and charged with refrigerant and is ready for field knockdown. This option allows components to be removed as required at the site. The unit dimension drawing gives sufficient dimensions to determine what components should be removed.

Type V gives the installing contractor the option to remove only those components necessary to complete the installation. The refrigerant is pumped down into the condenser and depending on the degree of knockdown, can remain there, decreasing the leak testing, evacuation and charging required in the field.

Table 25, Component Weight

WMC

Model

145S

145D

150D

250D

290D

400D

NOTES:

1. All weights in pounds.

2. “S” models have one compressor; “D” models have two compressors.

Compressor

Each

282 E2209 2490 C2009 2142

262 E2209 2490 C2009 2142

262 E2212 2857 C2012 2615

282 E2609 3259 C2209 2392

282 E2612 3812 C2212 2942

282 E3012 5075 C2612 3900

Evaporator Condenser

Model Weight Model Weight

Table 26, Component Dimensions, (Length x Width x Height)

WMC

Model

145S

145D

150D

250D

290D

400D

NOTES:

1. All dimensions in inches.

2. Panel dimensions are Depth x Width x Height

Compressor

32 x 22 x 18 14 x 34 x 67 9 x 16 x 33 E2209 135 x 28 x 29 C2009 128 x 36 x 33 135 x 36 x 62

32 x 18 x 18 14 x 34 x 67 9 x 16 x 33 E2209 135 x 28 x 29 C2009 128 x 36 x 33 135 x 36 x 62

32 x 18 x 18 14 x 34 x 67 9 x 16 x 33 E2212 170 x 28 x 29 C2012 164 x 36 x 33 170 x 36 x 62

32 x 22 x 18 14 x 34 x 67 9 x 16 x 33 E2609 130 x 32 x 33 C2209 135 x 39 x 33 135 x 39 x 66

32 x 22 x 18 14 x 34 x 67 9 x 16 x 33 E2612 165 x 32 x 33 C2212 170 x 39 x 33 170 x 39 x 66

32 x 22 x 18 14 x 34 x 67 9 x 16 x 33 E3012 169 x 36 x 36 C2612

Power

Panel (2)

Control

Panel (2)

Evaporator Condenser

Model Model

Stack

165 x 44 x 36. 169 x 44 x 72

Catalog 602-2 45

WMC Evap - Water Side Pressure Drop

(1 pass)

0 500 1000 1500 2000 2500 3000 3500 4000

EGPM - gpm

EPD - ft

E2212-B

E2212-C

E2212-D

E2209-B

E2209-C

E2209-D

E2612-B

E2609-B

E3012-B

E3012-C

WMC Cond - Water Side Pressure Drop

(1 pass)

0.0

5.0

10.0

15.0

20.0

25.0

0 500 1000 1500 2000 2500 3000 3500 4000 4500 5000

CGPM - gpm

CPD - ft

C2012-B

C2012-C

C2009-B

C2009-C

C2212-B

C2212-C

C2209-B

C2209-C

C2612-B

C2612-C

Pressure Drop Curves

NOTE: The Evaporator and Condenser Model Codes are shown on page 27. The -B and -C designations shown on the curves refer to vessel tube count, which is determined by the computer selection program. See page 27 for vessel/unit combination.

Figure 17, Single Pass Evaporators

Figure 18, Single Pass Condensers

46 Catalog 602-2

WMC Evap - Water Side Pressure Drop

(2 pass)

0 500 1000 1500 2000

EGPM - gpm

EPD - ft

E2212-B

E2212-C

E2212-D

E2209-B

E2209-C

E2209-D

E2612-B

E2609-B

E3012-B

E3012-C

WMC Cond - Water Side Pressure Drop

(2 pass)

0.0

5.0

10.0

15.0

20.0

25.0

30.0

35.0

0 500 1000 1500 2000 2500

CGPM - gpm

CPD - ft

C2012-B

C2012-C

C2009-B

C2009-C

C2212-B

C2212-C

C2209-B

C2209-C

C2612-B

C2612-C

Figure 19, 2-Pass Evaporators

Figure 20, 2-Pass Condensers

Catalog 602-2 47

Figure 21, 3-Pass Evaporators

WMC Evap - Water Side Pressure Drop

(3 pass)

0 200 400 600 800 1000 1200

EGPM - gpm

EPD - ft

E2212-C

E2212-D

E2209-C

E2209-D

E2612-B

E2609-B

E3012-C

WMC Cond - Water Side Pressure Drop

(3 pass)

0.0

10.0

20.0

30.0

40.0

50.0

60.0

0 200 400 600 800 1000 1200 1400

CGPM - gpm

CPD - ft

C2012-C

C2009-C

C2212-C

C2209-C

C2612-C

Figure 22, 3-Pass Condensers

48 Catalog 602-2

•

BACnet MS/TP

•

LONW

 (FTT-10A)

••

BACnet IP

••

Modbus RTU

BACnet Ethernet

Options and Accessories

Vessels

Marine water boxes

Provides tube access for inspection, cleaning, and removal without dismantling water piping.

Flanges (Victaulic connections are standard)

ANSI raised face flanges on either the evaporator and/or condenser. Mating flanges are by others.

Water side vessel construction of 300 psi (150 psi is standard)

For high pressure water systems, typically high-rise building construction.

Single insulation, 3/4 inch, on evaporator (including heads) and suction piping

Insulation, either optional factory-installed or field-installed is generally required on all installations.

Double insulation, 1-½ inch, on evaporator (including heads) and suction piping

For high humidity locations and ice making applications.

Special vessel codes

Including Chinese and Canadian Registration (CRN).

Controls

BAS interface module.

Factory-installed on the unit controller for the applicable protocol being used. (Can also be retrofit)

•

ORKS

Unit

Export packaging

Can be either slat or full crate for additional protection during shipment. Units normally shipped in containers.

Pumpout Unit, with or without storage vessel

Available in a variety of sizes. Details are in Catalog WSCWDC.

Refrigerant monitor

For remote mounting including accessories such as 4-20ma signal, strobe light, audible horn, air pick-up filter.

Extended warranties

Extended 1, 2, 3, or 4 year warranties for parts only or for parts and labor are available for the entire unit, entire unit plus refrigerant, or compressor/motor only.

Witness performance test

A full load run test is performed in the presence of the customer under the supervision of a factory engineer, includes compilation of the test data. Travel and local expenses are not included.

Certified performance test

A run test is performed under the supervision of a factory engineer; data is compiled and certified.

Approvals/listings

AHRI Approval and ETL/CETL listing is standard. MEA is optional.

Seismic Certification

Unit is OSHPD Pre-Approved and so labeled. (California only).

Unit is certified to IBC 2009 and so labeled.

Catalog 602-2 49

Electrical

Multi-point power connection

Provides separate power connection to each compressor disconnect switch on two compressor units in lieu of standard single-point power.

High short circuit current rating

65 kA (at 460 V) panel rating. (Standard is 35 kA).

Harmonic filter

Field-installed option. See page 40 for details.

EMI filter

Factory-installed option. Radio interference filter. See page 40 for details.

Ground Fault Protection

Protects equipment from arcing ground fault damage from line-to-ground fault currents less than those required for conductor protection.

Special Order Options

The following special order options are available; requiring factory pricing, additional engineering and possible dimension changes and/or extended delivery:

• Non-standard location of nozzle connections on heads (compact water boxes) or marine water boxes

• Special corrosion inhibiting coatings on any “wetted surface” including tubesheets, heads (compact water boxes),

marine water boxes, or nozzles

• Clad tube sheets

• Sacrificial anodes in heads (compact water boxes) or marine water boxes

• Special NEMA enclosures

• Davits or hinges for marine water box covers or heads (compact water boxes)

• Spacer rings on heads to accommodate automatic tube brush cleaning systems (installed by others)

50 Catalog 602-2

Refrigerant Recovery Units

(1) R-22 Liquid

lb/m (kg/m)

(1) R 22 Vapor

lb/m (kg/m)

Dimensions

Inch (cm)

Although Daikin chillers can pump the entire refrigerant charge into the condenser and valve it off, there are occasions when pumpout units are required, due purely to specification requirements or unusual job considerations.

Daikin offers two sizes of refrigerant recovery units (Model RRU) and one recovery unit that is factory mounted on certified. The storage tank is designed, constructed and stamped in accordance with ASME standards.

Model RRU Refrigerant Recovery Units

a storage vessel (Model PRU). Recovery units are ETL listed. Capacities for R-22 are AHRI

Model

RRU134-5 55 (25) 1.56 (0.71) 1.5 300 (1050) 115 (52) 21 x 14 x 19 (53 x 36 x 68) 1/50-60/110-115

RRU134-3 55 (25) 1.56 (0.71) 1.5 300 (1050) 115 (52) 21 x 14 x 19 (53 x 36 x 68) 1/50-60/220-230

RRU570-3 325 (148) 6.0 (2.7) 3 1000 (3500) 190 (86) 26 x 25 45 (66 x 63 x 114) 1/50-60/220-230

RRU570-V 325 (148) 6.0 (2.7) 3 1000 (3500) 190 (86) 26 x 25 45 (66 x 63 x 114) 3/50-60/220-230

RRU570-R 325 (148) 6.0 (2.7) 3 1000 (3500) 190 (86) 26 x 25 45 (66 x 63 x 114) 3/50-60/360-460

RRU570-D 325 (148) 6.0 (2.7) 3 1000 (3500) 190 (86) 26 x 25 45 (66 x 63 x 114) 3/60/575

Transfer Rate

Comp.

(2) Chiller

Tons (kW)

Weight lbs (kg)

L x W x H

Electrical

Size and Specifications

NOTES:

1. Transfer rate for R-22 is AHRI certified. R-134a capacity is given below in each unit's description.

2. Suggested maximum chiller capacity.

Refrigerant Compatibility

Units are suitable for use with the following refrigerants normally found on Daikin chillers; R-12, R-22, R-134a, R-410A, and R-500.

Standard Equipment

Equipment

Power Cord X X

Filter-Driers (2) 30 cu. in. (1) 48 cu. in

Electromechanical Control X X

Hoses (4) 10 ft. (1) 10 ft + (2) 20 ft

Reducing Fittings X

12 ft. Tank Float Switch Cable X

Connection Sizes ½ in. Flare ¾ in. Flare

RRU134 RRU570

Model

Model RRU134

Large 1-½ HP open drive compressor, ½-inch lines, two-point vapor extraction and oversized air-cooled condenser speed recovery on smaller size chillers. Purging and switching from liquid to vapor recovery only involves turning 3way valves-no switching of hoses is necessary. Capacity with R-134a is 55 lb/min liquid, 1.34 lb/min vapor.

Catalog 602-2 51

Weight

lb (kg)

Length in (cm)

Width

in (cm)

Height

in (cm)

•

Detects all halogen based refrigerants

•

Continuous digital display of system status

Optional analog output for remote monitoring

System malfunction detection and indication

Visual alarm indication

Can sample up to 250 feet (76 meters) away

•

ETL listed

•

UL STD 3101-1 and CAN/CSA 1010.1

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 compressor provides years of reliable service, even on refrigerants heavily contaminated with oil, air, moisture, or acids. Purging and switching from liquid to vapor recovery only involves turning 3-way valves-no switching of hoses is necessary. Suitable for most highpressure refrigerants and blends. Equipped with air-cooled condenser.

Model PRU Packaged Recovery Units

The Model RRU134 transfer unit can be factory-mounted on a storage vessel providing a packaged unit with a R-134a transfer capacity of 55 lb/min liquid and 1.34 lb/min of vapor combined with a storage vessel with a capacity of 2105

pounds of R-134a. Includes (2) 20-ft. hoses.

Model

PRU134-5 55 (25) 1.56 (0.71) 770 (349) 94 (239) 30 (76) 55 (139) 1/50-60/110-115

PRU134-3 55 (25) 1.56 (0.71) 770 (349) 94 (239) 30 (76) 55 (139) 1/50-60/220-230

R-22 Liquid

Transfer Rate

lb/m (kg/m)

R-22 Vapor

Transfer Rate

lb/m (kg/m)

Unit

Electrical

Accessories

RHK-120 1.25 in. x 10 ft. hose with ball valves

RHK-240 1.25 in. x 20 ft. hose with ball valves

Refrigerant Monitors

•

Fresh air inlet for automatic re-zeroing

•

MODELS

Model RM-1 1 Zone Monitor

•

Multi-unit capability in a single monitor

•

Model RM-4 4 Zone Monitor

Model RM-8 8 Zone Monitor

Model RM-16 16 Zone Model

52 Catalog 602-2

SPECIFICATIONS

Sensitivity: As low as 1 PPM Range: 0 to 1000 PPM Wei ght: 25 lbs. (11 kg)

Alarm Trip Points (Percent of Full Scale): Low Alarm=0 to 100, Main Alarm=0 to 100, High Alarm=100

Alarm Outputs: Indicator Light, Alarm Relays, RS232 Computer Interface

SYSTEM DESCRIPTION

Available

16 gauge

3 conductor wire

18 or 22 gauge

2 conductor cable

Required for horn,

strobe, or combination

2 conductor twisted

pair shielded cable

Required for remote

analog output

Remote horn

Yes

Remote strobe light

Yes

strobe light set

1/4 in. x 1/8 in. ID

Available in 250 foot

For mounting at the

Power: 120/240 Volt, 50/60 Hz

Operating Environment: 32°F-125°F

Size: W=16.5in. D=6.75in. H=15in.

OPTIONS and ACCESSORIES

Analog Output, 4-20 ma (RMA-AO) Remote Strobe Light, 120 V (RMA-L)

Remote Horn, 120V (RMA-H) Remote Light and Horn Set (RMA-LH)

Plastic Pick-up Tubing, ¼ inch OD, 250 ft. Reel (RMA-T) Diaphragm Pump (RMA-P) *

Course Replacement Filter (RMA-CF) * 5 Micron Replacement Filter (RMA-F) *

(*) Replacement parts. Original pump and filters are shipped with unit.

Item Description Required

Yes No Yes No

No Yes No

Supplied

with

Unit

Supplied

Customer

Optional

from

Daikin

Comments

8 Course filter Yes Yes

Remote horn and

plastic pick-up tubing

No Yes Yes

Yes No Yes

Figure 23, Refrigerant Monitor Diagram

reels

end of the tubing

Catalog 602-2 53

Specifications

SECTION 15XXX

MAGNETIC BEARING CENTRIFUGAL CHILLERS

PART 1 - GENERAL

1.1 SUMMARY

A. Section includes design, performance criteria, refrigerants, controls, and installation requirements for

water-cooled centrifugal chillers.

1.2 REFERENCES

A. Comply with the following codes and standards:

• AHRI 550/590

• AHRI 575

• NEC

• ANSI/ASHRAE 15

• OSHA as adopted by the State

• ETL

• ASME Section VIII

1.3 SUBMITTALS

A. Submittals shall include the following:

1. Dimensioned plan and elevation view, including required clearances, and location of all field piping

and electrical connections.

2. Summaries of all auxiliary utility requirements such as: electricity, water, air, etc. Summary shall

indicate quality and quantity of each required utility.

3. Diagram of control system indicating points for field interface and field connection. Diagram shall

fully depict field and factory wiring.

4. Manufacturer's certified performance data at full load plus IPLV or NPLV.

5. Installation and Operating Manuals.

1.4 QUALITY ASSURANCE

A. Regulatory Requirements: Comply with the codes and standards in Section 1.2. B. Chiller manufacturer plant shall be ISO Certified.

1.5 DELIVERY AND HANDLING

A. Chillers shall be delivered to the job site completely assembled and charged with refrigerant R134a and be

shipped on skids with a weather resistant cover.

-- OR --

A. (For Type IV Knockdown) The compressor(s) and control and power panel(s) shall be removed at the

factory and shipped on skids. The stripped vessel stack shall be shipped as a single piece. Discharge piping, liquid line and the compressor cooling lines shall be removed and crated. All associated wiring and piping possible will remain on the vessel stack. The unit shall be shipped without refrigerant, which must be furnished and charged by the installing contractor.

-- OR --

54 Catalog 602-2

A. (For Type V Knockdown) The unit shall be delivered to the job site completely assembled and charged

with refrigerant (pumped down into condenser) and ready for field knockdown, as determined by the installing contractor.

B. Comply with the manufacturer's instructions for rigging and transporting units. Leave protective covers

in place until installation.

1.6 WARRANTY

A. The chiller manufacturer's warranty shall cover parts and labor costs for the repair or replacement of

defects in material or workmanship [OPTION] including refrigerant for the entire unit, for a period of one year from equipment startup or 18 months from shipment, whichever occurs first, [OPTION] and also include an additional extended warranty for (one OR two OR three OR four) years on (the entire unit) OR (on entire unit including refrigerant coverage) OR (compressor and drive train only). Warranty support shall be provided by company direct or factory authorized service permanently located near the job site.

1.7 MAINTENANCE

A. Maintenance of the chillers in accordance with manufacturer’s recommendations as published in the

installation and maintenance manuals shall be the responsibility of the owner.

PART 2 - PRODUCTS

2.1 ACCEPTABLE MANUFACTURERS

A. Basis of Design - Daikin Magn

itude Model WMC/WME, including the standard product features

and all special features required per the plans and specifications.

B. Equal Products - Equipment manufactured by [ENTER MANUFACTURER NAME HERE] may be

acceptable as an equal. Naming these products as equal does not imply that their standard construction or configuration is acceptable or meets the specifications. Equipment proposed “as equal”, must meet the specifications including all architectural, mechanical, electrical, and structural details, all scheduled performance and the job design, plans and specifications.

2.2 UNIT DESCRIPTION

A. Provide and install as shown on the plans a factory assembled and charged water-cooled packaged

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. On twocompressor units, the evaporator and condenser refrigerant sides and the expansion valve shall be common and the chiller shall be capable of running on one compressor with the other compressor or any of its auxiliaries inoperable or removed.

B. [Option] Each chiller shall undergo a [one] OR [two] OR [three] OR [four] or [five] or [ten] point

certified factory performance tested on an AHRI qualified test stand with water at job conditions (excluding glycol applications). A manufacture’s engineer shall oversee the testing, certify the accuracy of the computerized results, and then translates the test data onto an easy-to-read spreadsheet provided to the owner. The tests are to be run as specified in advance and are run to within AHRI tolerance of capacity and power. 50 Hz units are run tested at 60 Hz to their maximum motor power. Operating controls shall be adjusted and checked. The refrigerant charge shall be adjusted for optimum operation and recorded on the unit nameplate. Units operating with 50-Hz power shall be tested with a 50-Hz power supply. Any deviation in performance or operation shall be remedied prior to shipment and the unit retested if necessary to confirm repairs or adjustments.

--OR--

Catalog 602-2 55

B. [Option] Each chiller shall undergo a [one] OR [two] OR [three] OR [four] or [five] or [ten] point

certified witness performance test on an AHRI qualified test stand with water at job conditions (excluding glycol applications). A manufacture’s engineer shall oversee the testing in the presence of the owner or owner’s representative, certify the accuracy of the computerized results, and then translates the test data onto an easy-to-read spreadsheet provided to the owner. The tests are to be run as specified in advance and are run to within AHRI tolerance of capacity and power. 50 Hz units are run tested at 60 Hz to their maximum motor power. Operating controls shall be adjusted and checked. The refrigerant charge shall be adjusted for optimum operation and recorded on the unit nameplate. Units operating with 50-Hz power shall be tested with a 50-Hz power supply. Any deviation in performance or operation shall be remedied prior to shipment and the unit retested if necessary to confirm repairs or adjustments.

2.3 DESIGN REQUIREMENTS

General: Provide a complete water-cooled, semi-hermetic oil-free centrifugal compressor water chiller as

specified herein. The unit shall be provided according to standards indicated in Section 1.2. In general, unit shall consist of one or two magnetic bearing, completely oil-free centrifugal compressors, refrigerant, condenser and evaporator, and control systems including integrated variable frequency drive, operating controls and equipment protection controls. Chillers shall be designed to operate within an ambient temperature range of 40ºF to 104ºF with a maximum humidity of 95% (non-condensing) and shall be charged with refrigerant HFC-134a. If manufacturer offers a chiller using any HCFC refrigerant that is subject to phase out by the Montreal Protocol or the U.S. Clean Air Act, manufacturer shall provide, in writing, documentation signed by an officer of the company assuring refrigerant availability and price schedule for a 20-year period.

A. The entire chiller system, including all pressure vessels, shall remain above atmospheric pressure during

all operating conditions and during shut down to ensure that non-condensables and moisture do not contaminate the refrigerant and chiller system. If any portion of the chiller system is below atmospheric pressure during either operation or shut down, the manufacturer shall include, at no charge:

1. Purge System

i. A complete purge system capable of removing non-condensables and moisture during

operation and shut-down. The system shall consist of an air cooled condensing unit, purge condensing tank, pumpout compressor, and control system.

ii. A dedicated condensing unit shall be provided with the purge system to provide a cooling

source whether or not the chiller is running. The condensing unit shall provide a low purge coil temperature to result in a maximum loss of 0.1 pounds of refrigerant per pound of purged air.

iii. The purge system shall be connected to a 100% reclaim device.

iv. A 20-year purge maintenance agreement that provides parts, labor, and all preventative

maintenance required by the manufacturer’s operating and maintenance instructions.

2. Annual Oil/Refrigerant Analysis

i. The manufacturer shall also include at no charge for a period of 20 years an annual oil and

refrigerant analysis report to identify chiller contamination due to vacuum leaks. If the analysis identifies water, acid, or other contaminant levels higher than specified by the manufacturer, the oil and/or refrigerant must be replaced or returned to the manufacturer’s original specification at no cost to the owner.

3. Shell Pressurization System

i. The manufacturer shall include a factory-installed and wired system that will enable

service personnel to readily elevate the vessel pressure during shutdown to facilitate leak testing.

56 Catalog 602-2

75% Load

ii. A factory mounted, wired, and installed shell pressurization system shall be provided to

keep air out of the chiller when the unit is not in service. Electric blanket or hot water circulation system are both acceptable.

B. Performance: Refer to chiller performance rating.

C. Acoustics: Sound pressure for the unit shall not exceed the following specified levels. Provide the necessary

acoustic treatment to chiller as required. Sound data shall be measured in dB according to AHRI Standard 575 and shall include overall dBA. Data shall be the highest levels recorded at all load points.

Octave Band

63Hz 125Hz 250Hz 500Hz 1000Hz 2000Hz 4000Hz 8000Hz

2.4 CHILLER COMPONENTS

A. Compressors:

1. The unit shall utilize magnetic bearing, oil-free, semi-hermetic centrifugal compressors. The

levitated shaft position shall be digitally controlled and shall be monitored by X-axis position sensor, Y-axis position sensor, and Z-axis position sensor. The compressor drive train shall be capable of coming to a controlled, safe stop in the event of a power failure by diverting stored power to the magnetic bearing controls system.

2. The motor shall be of the semi-hermetic type, of sufficient size to efficiently fulfill compressor

horsepower requirements. It shall be liquid refrigerant cooled with internal thermal sensing devices in the stator windings. The motor shall be compatible with variable frequency drive operation.

1. If unit contains an atmospheric shaft seal, the manufacturer shall provide the following at no

additional charge:

a. 20 year warranty and all preventive maintenance required to maintain the shaft seal

including appropriate disposal of all oil lost through the shaft seal. Such disposal shall be done in a manner consistent with all Federal, state, and local laws pertaining to disposal and documentation of appropriate disposal shall be provided

Overall (dBA)

50% Load 25% Load

b. Replacement and re-charging on a semi-annual basis, or more often if required, of all oil

lost through the shaft seal

c. 20 year refrigerant replacement warranty for any loss of refrigerant that can be directly

attributable to the failure of the atmospheric shaft seal

2. If the compressor drive motor is an open design the chiller manufacturer shall provide at

no additional charge a self contained air conditioning system in the mechanical space sized to handle the maximum heat output the open drive motor. The energy required to operate this air conditioning system shall be added to the chiller power at all rating points for energy evaluation purposes.

3. If the compressor drive motor uses any form of antifriction bearings (roller, ball, etc) the

chiller manufacturer shall provide the following at no additional charge:

a. A 20 year motor bearing warranty and all preventative maintenance, including

lubrication, required to maintain the bearings as specified in the manufacturer’s operating and maintenance instructions

Catalog 602-2 57

b. At start up a three axis vibration analysis and written report which establishes a baseline

of motor bearing condition.

An annual three axis vibration analysis and written report to indicate the trend of bearing

wear.

3. The chiller shall be equipped with an integrated Variable Frequency Drive (VFD) to

automatically regulate compressor speed in response to cooling load and the compressor pressure lift requirement. Movable inlet guide vanes and variable compressor speed acting together, shall provide unloading. The chiller controls shall coordinate compressor speed and guide vane position to optimize chiller efficiency.

4. [OPTIONAL) Each compressor shall be equipped with a field-mounted harmonic filter.

5. Each compressor circuit shall be equipped with a line reactor to help protect against incoming

power surges and help reduce harmonic distortion.

B. Evaporator and Condenser:

The evaporator and condenser shall be separate vessels of the shell-and-tube type, designed, constructed, tested and stamped according to the requirements of the ASME Code, Section VIII. Regardless of the operating pressure, the refrigerant side of each vessel will bear the ASME stamp indicating compliance with the code and indicating a test pressure of 1.1 times the working pressure, but not less than 100 psig. The tubes shall be individually replaceable and secured to the intermediate supports

without rolling or expanding to facilitate replacement if required.

1. The evaporator shall be flooded type with [0.025 in.] OR [0.028 in.] OR [0.035 in.] wall copper

internally and externally enhanced tubes rolled into carbon steel tubesheets. The water side shall be designed for a minimum of [150 psig] OR [300 psig]. The refrigerant side shall be designed for a minimum of 200 psi. Provide intermediate tube supports at a maximum of 24 inch spacing. The heads shall be [carbon steel] OR [epoxy-coated steel]. Water connections shall be [grooved suitable for Victaulic couplings] OR [flanged connections]. The evaporator shall have [dished heads with valved drain and vent connections] OR [shall be equipped with marine water boxes with removable covers and vent and drain connections]. The evaporator shall have [right-hand] OR [left-hand] connections when looking at the unit control panel.

2. The condenser shall have [(0.025 in) OR (0.028 in.) OR (0.035 in.) wall copper] OR [(0.028 in.) or

(0.035 in.) wall 90-10 cupro-nickel] internally and externally enhanced tubes rolled into carbon steel. Water connections shall be [grooved suitable for Victaulic couplings] OR [flanged]. The water side shall be designed for a minimum of [150 psig] OR [300 psig]. The refrigerant side shall be designed for a minimum of 200 psi. Provide intermediate tube supports at a maximum of 24 inch spacing. The condenser shall have [dished heads with valved drain and vent connections] OR [shall be equipped with marine water boxes with removable covers and vent and drain connections]. The heads shall be [carbon steel] OR [epoxy-coated steel]. The condenser shall have [right-hand] OR [left-hand] connections when looking at the unit control panel.

3. Provide sufficient isolation valves and condenser volume to hold the full unit refrigerant charge

the condenser at 90ºF in accordance with ANSIASHRAE 15.A during servicing or provide a separate pumpout system and storage tank sufficient to hold the charge of the largest unit being furnished.

4. An electronic expansion valve shall control refrigerant flow to the evaporator. Fixed orifice

devices or float controls with hot gas bypass are not acceptable because of inefficient control at low load conditions. The liquid line shall have moisture indicating sight glass.

5. Re-seating type spring loaded pressure relief valves according to ASHRAE-15 safety code shall be

furnished. The evaporator shall be provided with single or multiple valves. The condenser shall be provided with dual relief valves equipped with a transfer valve so one relief valve can be removed for testing or replacement without loss of refrigerant or removal of refrigerant from the condenser.

58 Catalog 602-2

Rupture disks are not acceptable. If rupture disks are required on negative pressure units to prevent air and moisture ingress, then factory mounted spring loaded pressure relief valves shall be provided in series with the rupture disks to contain the remaining refrigerant in the event of vessel over-pressurization. The space between the rupture disk and the relief valve shall include a suitable telltale indicator integrated into the chiller control system to alert the operator that a potential safety issue exists in the pressure relief system.

6. [OPTIONAL] The evaporator, including water heads, suction line, and any other component or

part of a component subject to condensing moisture shall be insulated with UL recognized [3/4 inch] OR [1 ½ inch] closed cell insulation. All joints and seams shall be carefully sealed to form a vapor barrier.

7. Provide factory-mounted and wired, thermal-dispersion water flow switches on each vessel to

prevent unit operation with no or low water flow. Paddle and pressure differential type switches are not acceptable due to high rates of failure and false indications from these types of flow indicators.

C. Long Term Reliability

1. All compressor/motor designs that require oil to lubricate their respective roller/ball bearing

system must denote exactly how many gallons of oil are required for safe operation. The manufacturer must then provide the engineer and owner with a real world energy analysis showing the energy degradation over time due oil contamination of heat transfer surfaces

2. Chillers containing oil shall include at no additional charge a 10 year parts and labor warranty

on all oil system components including:

• Pumps

• Starter

• Piping

• Tank

3. Manufacturer shall be responsible for covering all costs associated with annual oil and oil filter

changes plus oil analysis as required

D. Vibration Isolation

1. Provide neoprene waffle-type vibration isolators for each corner of the unit.

E. Power Connections

1. Power connection shall be [single point to a factory-mounted disconnect switch] OR [multipoint to

each compressor power panel on two-compressor units].

F. Chiller Control

1. The unit shall have a microprocessor-based control system consisting of a 15-inch VGA touch-

screen operator interface and a unit controller.

2. The touch-screen shall display the unit operating parameters, accept setpoint changes (multi-level

password protected) and be capable of resetting faults and alarms. The following parameters shall be displayed on the home screen and also as trend curves on the trend screen:

• Heater

• Cooler

• Controls

• Val ve s

• Entering and leaving chilled water temperatures

• Entering and leaving condenser water temperatures

• Evaporator saturated refrigerant pressure

• Condenser saturated refrigerant pressure

• Percent of 100% speed (per compressor)

Catalog 602-2 59

• % of rated load amps for entire unit

3. In addition to the trended items above, all other important real-time operating parameters shall

also be shown on the touch-screen. These items shall be displayed on a chiller graphic showing each component. At a minimum, the following critical areas must be monitored:

• Compressor actual speed, maximum speed, percent speed

• Liquid line temperature

• Chilled water setpoint

• Compressor and unit state and input and output digital and analog values

4. A fault history shall be displayed using an easy to decipher, color coded set of messages that are

date and time stamped. Time interval scale shall be user selectable as 20 mins, 2 hours, or 8 hours. The alarm history shall be downloadable from the unit's USB port. An operating and maintenance manual specific for the unit shall be viewable on the screen.

5. All setpoints shall be viewable and changeable (multi-level password protected) on the touch

screen and include setpoint description and range of set values.

6. Automatic corrective action to reduce unnecessary cycling shall be accomplished through

preemptive control of low evaporator or high discharge pressure conditions to keep the unit operating through abnormal transient conditions.

7. The chiller shall be capable of cycling and loading up to three other similar chillers through a local

network and also automatic control of evaporator and condenser pumps (primary and standby), up to 3 stages of cooling tower fan cycling control and a tower modulating bypass valve or cooling tower fan variable frequency drives.

8. [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.

• Modbus

• BACnet MS/TP master (Clause 9)

• BACnet IP, (Annex J)

• BACnet ISO 8802-3, (Ethernet)

• LonTalk® FTT-10A. The unit controller shall be LONMARK ® certified.

9. The information communicated between the BAS and the factory mounted unit controllers shall

include the reading and writing of data to allow unit monitoring, control and alarm notification as specified in the unit sequence of operation and the unit points list.

10. For chillers communicating over a LONMARK network, the corresponding LONMARK eXternal

Interface File (XIF) shall be provided with the chiller submittal data.

11. All communication from the chiller unit controller as specified in the points list shall be via

standard BACnet objects. Proprietary BACnet objects shall not be allowed. BACnet communications shall conform to the BACnet protocol (ANSI/ASHRAE135-2001). A BACnet Protocol Implementation Conformance Statement (PICS) shall be provided along with the unit submittal.

12. The factory supplied VFD and controls should include the following:

• High short circuit panel rating of [35 kA (standard)] OR [65kA at 460V (optional)] with a

field-supplied matching disconnect switch

• Phase loss protection

• Under/over voltage protection

60 Catalog 602-2

• [OPTIONAL] Ground Fault Protection to reduce the arcing ground fault damage from line-to-

ground fault currents less than those required for conductor protection

• [OPTIONAL] EMI filters to reduce radio frequency interference

13. Energy saving software logic shall at a minimum offer the following

• User programmable compressor soft loading

• Chilled water reset

• Demand limit control

• Staging options lead lag between multiple compressors on a single chiller or up to two other

similar chillers.

• Plotting of historic trends for optimizing efficiency

2.5. OPTIONAL ITEMS

The following optional items shall be furnished:

1. [Open] OR [Closed] export crate

2. Pumpout unit, with or without storage vessel

3. Refrigerant monitor

4. 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 S

. The chiller must

be mounted to a rigid base and may use neoprene waffle vibration pads.

5. IBC Certification: The chiller shall be certified to the following codes and standards; 2009 IBC, 2010

CBC, ICC-ES AC-156, ASCE 7-05. The chiller must be mounted to a rigid base and may use neoprene waffle vibration pads.

PART 3 - EXECUTION

3.1 INSTALLATION

A. Installing contractor to:

1. Install per manufacturer's requirements, shop drawings, and contract documents.

2. Adjust chiller alignment on foundations, or subbases as called for on drawings.

3. Arrange piping to allow for dismantling to permit head removal and tube cleaning.

4. Coordinate electrical installation with electrical contractor.

5. Coordinate controls with control contractor.

6. Provide all material required for a fully operational and functional chiller.

7 Install unit in a dry indoor location consistent with NEMA 1 design.

3.2 START-UP

A. 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 full working days. During the period of start-up, the start-up technician shall instruct the owner's representative in proper care and operation of the unit.

Catalog 602-2 61

Daikin Training and Development

Now that you have made an investment in modern, efficient Daikin equipment, its care should be a high priority. For training information on all Daikin 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 equipment is sold pursuant to Daikin standard terms and conditions of sale, including Limited Product Warranty. Consult your local Daikin Representative for warranty details. To find your local Daikin Representative, go to www.DaikinApplied.com .

This document contains the most current product information as of this printing. For the most up-to-date product information, please go to www.DaikinApplied.com .

Goodman WMC145D User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual

For Magnitude™ Model WME information see Catalog 604

Benefit Summary

The Compressor Technology

Ultra-Smart Controls

Oil Handling Equipment Removed

User-Friendly Touch Screen Panel

Low Operating Costs

Shrink Your Utility Costs with Ultra Efficient Part-Load Performance

Virtually Eliminate Maintenance Costs

Flexible BAS Interface Modules

Variable Frequency Drives

Seismic Certification Option

Long Term Refrigerant Solution

Ultra Quiet Sound Levels

Extremely Low Vibration Levels

Unit Control Features

Magnitude Chillers Feature MicroTech

MicroTech II ® Control Features and Benefits

Designed with the Operator in Mind

Changing Setpoints

MicroTech Controller Increases Chiller Operating Economy

Trend Logging

Versatile Communications Capabilities Give You Even More Control

Building Automation Systems

Open Choice Benefits

Network Protocol Options

Unit Design Features

Variable Frequency Drive

Optional Harmonic Filter

HFC-134a

Heat Exchangers

Pumpdown

Electronic Expansion Valve

Flow Switch

Optional Witness Test

Part Load Efficiency

Compliance with ASHRAE Std. 90.1

Optional Certified Test

AHRI Certification

IPLV/NPLV Defined

Weighting

Tolerances

Chiller Identification

Sound Data

One-Third Octave Band

Dimensions

Drawing Notes

Physical Data and Weights

Evaporator

Physical Data

Condenser

Relief Valves

Electrical Data

WMC 145D & 150D, Dual Compressor

WMC 250D & 290D, Dual Compressor

WMC 400D 3/60/460 ONLY

Notes for following field wiring diagram

Figure 14, Field Wiring Diagram

Power Factor Correction

VFD Line Harmonics

Current Harmonics

Voltage Harmonics

Line Reactors

Optional Harmonic Filter

EMI (Electro Magnetic Interference) and RFI (Radio Frequency Interference) Filter

Application Considerations

Location

Optimum Water Temperatures and Flow

Higher leaving chilled water temperatures

Evaporator temperature drop

Condenser entering water temperature

Condenser water temperature rise

Chilled Water Temperature

Piping

Pumps

Variable Speed Chilled Water Pumping