Goodman WME0500S User Manual
Catalog 604-9
Magnitude
®
Magnetic Bearing Centrifugal Chillers
Model WME
400 to 1500 Tons (1400 to 5300 kW)
HFC-134a Refrigerant
Introduction..................................3
Technology That Just Makes Sense .............3
Features and Benets Summary ................3
Features and Benets .........................4
The Compressor Technology ...................4
Integrated Variable Frequency Drive .............5
The Control Technology .......................5
Certications and Standards....................6
Factory Testing ..............................7
Dimensions and Weights.......................8
Unit Dimensions and Shipping Weight ............8
Drawing Notes ..............................9
Options and Accessories .....................10
Unit Options ...............................10
Vessel Options .............................10
Controls Options ............................10
Electrical Options ...........................11
Special Order Options........................11
Table of ConTenTs
Table of ConTenTs
Refrigeration Diagram ........................12
Application Considerations....................14
Location Requirements.......................14
Vibration Mounting ..........................14
System Design .............................14
Optimizing Efciency . . . . . . . . . . . . . . . . . . . . . . . . 14
Evaporator ................................15
Condenser ................................15
Retrot Knockdown .........................18
Engineering Guide Specications ..............20
Manufactured in an ISO 9001 & ISO 14001 certied facility
©2015 Daikin Applied. Illustrations and data cover the Daikin Applied product at the time of publication and we reserve the right to
make changes in design and construction at any time without notice.
CAT 604-9 • MAGNITUDE® MODEL WME CHILLERS 2 www.DaikinApplied.com
InTroduCTIon
InTroduCTIon
WMC 100 - 400 Tons
Magnitude® Magnetic Bearing Chillers
Model WMC 145-400D
WME 400 - 1500 Tons
Model WME 500-700S
100 300 500 700 900 1100 15001300
Technology That Just Makes Sense
The industry’s next generation of centrifugal chillers is here
today with Daikin Magnitude® chillers. The new technology
begins with centrifugal compressors utilizing magnetic
bearings for oil-free operation, integral variable-frequency
drives, and direct drive technology. The high efciency
compressor is matched with highly efcient heat exchanges
to make an impressive chiller. Magnitude® chillers have many
important features:
• State-of-the-art magnetic bearing compressor
with oil-free technology
• Unit-mounted Variable Frequency Drive
• Positive pressure design
• Hermetic, permanent magnet, direct-drive motor
• User-friendly MicroTech® controls
• Open Choices™ feature for BAS of your choice
• HFC-134a refrigerant
(Zero ozone depletion and no refrigerant phase out)
• AHRI cer tication
Features and Benets Summary
The Compressor Technology
• Magnetic bearing system that results in greater efciency
and reliability, more sustainable performance, reduced
operating and maintenance costs, and low vibration and
sound levels compared to traditional oil centrifugals.
Integrated Variable Frequency Drive (VFD)
• Unit-mounted VFD modulates compressor speed to
obtain optimum efciency at all load and lift conditions.
The Control Technology
• Onboard digital electronics provide smart controls and
include a regenerative power system, user-friendly
operator interface, RapidRestore® and RideThrough
options, and Open Choices™ BAS exibility.
Certications and Standards
• Meets ASHR AE Std. 90.1, AHRI 550/590 and IBC/
OSHPD Seismic, and contributes to LEED® credits.
Factory Testing
• Ensures trouble free startup and reliable operation.
Model WME 1000-1500D
®
www.DaikinApplied.com 3 CAT 604-9 • MAGNITUDE® MODEL WME CHILLERS
The Compressor Technology
Model WME’s exceptional efciency and reliability is due
to its cutting-edge permanent magnet motor and magnetic
bearing compressor technology. A digitally-controlled
magnetic bearing system replaces conventional oil lubricated
bearings and a direct drive motor eliminates the need for a
lubricated gear box. The compressor shaft, shown in Figure
Figure 1: Magnetic Bearing Compressor Shaft
feaTures and benefITs
feaTures and benefITs
1, levitates on a magnetic cushion and is the compressor’s
only major moving component. Sensors at each magnetic
bearing provide real-time feedback to the bearing control
system. As a result of this sophisticated design, model WME
has many advantages over chillers with traditional centrifugal
compressors.
2
1
3 4
Oil-Free Compressor Design Benets
No Oil Management System = Greater Reliability
With magnetic bearings operating in a magnetic eld
instead of oil-lubricated bearings, the oil handling
equipment is removed. No need for:
oil pumps
oil reservoirs
oil coolers
oil lters
water regulating valves
oil relief valves
oil storage and disposal
oil system controls, starter, piping, heaters, etc.
that are needed to maintain oil quality. These devices can
be a fault source in traditional chillers, and removing them
signicantly increases unit and system reliability.
5
1. Impeller
2. Front Radial Bearing
3. Permanent Magnet Direct Drive Motor
4. Rear Radial Bearing
5. Thrust Bearing
Totally Oil-Free Operation = Greater Efciency
The use of oil-free magnetic bearing technology
signicantly increases chiller efciency by reducing
frictional losses within the bearing system.
In addition, efciency improvements can be realized since
there is no oil to coat the heat transfer surfaces.
No Oil Loss = Sustainable Performance
With no possibility of oil loss at light loads or due to
worn seals, the original energy saving efciency can be
maintained for the life of the chiller.
No Oil System = Low Vibration & Sound Levels
With the use of magnetic bearings, the compressor
vibration levels are extremely low, minimizing vibration that
could be transmitted to the structure.
With low vibration levels, sound levels are lower compared
to traditional centrifugal chillers.
No Oil System = Reduced Maintenance Costs
With oil removed from the system, oil samples, oil changes,
oil system maintenance, oil lter changes, and leaks are
eliminated.
CAT 604-9 • MAGNITUDE® MODEL WME CHILLERS 4 www.DaikinApplied.com
feaTures and benefITs
Additional Compressor Design Benets
Model WME’s magnetic bearing compressor design offers
many benets not only because of its oil free design but also
because of its use of a positive pressure refrigerant and a
variable frequency drive.
Environmentally Friendly
Over time negative pressure chillers (such as those using
HCFC-123) may draw air and moisture into the system, which
can signicantly increase energy consumption. Since the
Magnitude® WME chiller uses a positive pressure refrigerant
(HFC-134a), the industry-leading efciency can be maintained
for the life of the chiller. In addition, HFC-134a has no ozone
depletion potential and no phase-out schedule per the
Montreal protocol unlike HCFC type refrigerants used in low
pressure designs.
Low Operating Costs
Model WME offers world-class full and part load efciency
due to its advanced permanent magnet motor and magnetic
bearing VFD compressor design. This allows for signicant
energy savings at off-design conditions compared to xed-
speed chillers. See AHRI Certication on page 6 for more
information on part load performance.
Integrated Variable Frequency Drive
A Variable Frequency Drive (VFD) modulates compressor
speed in response to load and evaporator/condenser
pressure. When minimum speed is reached, moveable inlet
guide vanes redirect the gas ow into the impeller. VFD’s have
the following benets:
• Reduced annual energy costs when there are long
periods of part load operation and/or low compressor lift
(lower condenser water temperature)
• Reduced motor starting inrush current
• Reduced size of backup generators used to provide
emergency power to chillers used on mission critical
applications
• Increased power factor to reduce utility surcharges
WME Reduced Harmonic Options
The Institute of Electrical and Electronics Engineers (IEEE)
has developed a standard (IEEE519) that denes acceptable
limits of site specic system current and voltage distortion.
The designer may wish to consult this standard to ensure
acceptable levels of harmonic distortion are maintained.
The harmonic characteristics of the standard VFD drive
(Motor Code M2) will be acceptable in the vast majority of
applications without the use of additional costly harmonic
lters or low harmonic drives.
The low harmonic drives (Motor Codes M3 and M4) are
guaranteed to meet the IEEE519 Total Demand Distortion
limits if the Isc/IL ratio is greater than 20.
An optional harmonic lter for the WME500 and WME1000
M2 VFD drive is available as a factory mounted option or as
an accessory to be eld mounting and wired. This harmonic
lter is also guaranteed to meet the IEEE519 Total Demand
Distortion limits.
The Control Technology
It is only tting that this revolutionary chiller design be
matched with the advanced control technology to give
you the ultimate chiller performance. Our control design
includes many unique energy-saving features and interface
enhancements.
MicroTech® E Controller
The model WME chiller utilizes MicroTech® E digital control
electronics to proactively manage unit operation and provide
control of external chilled water and cooling tower pumps.
The compressor runs at the minimum speed necessary to
maintain cooling capacity and lift (which decreases with lower
condenser water temperatures), thus minimizing energy usage
over the entire range of operating conditions. By constantly
monitoring chiller status and real time data, the MicroTech® E
controller will automatically take proactive measures to relieve
abnormal conditions or shut the unit down if a fault occurs.
The WME chiller includes a regenerative power system that
is used to provide power to the controls and bearings during
a power loss event. When power is lost, the system extracts
energy from the spinning motor. The power extracted from the
rotor is fed back into the controls and bearings. As the power
is extracted from the rotor, the shaft naturally slows down.
Once the rotor is exhausted of its kinetic energy, and the shaft
has reached a near zero speed, it gently touches down onto
the backup bearings. The backup bearings maintain shaft
position when the compressor is in an idle state and serve as
a failsafe for the primary magnetic bearing system.
Additional smart features that optimize operating efciency
have been incorporated into our MicroTech® E controls:
• Cooling tower control including on/off, staging, and VFD
• Direct control of water pumps
• Chilled water rest
• Demand limit control
• Staging of multiple WME chillers (for WME 500 and 700)
Operator Interface
Operation simplicity was one of the main considerations in
the development of the MicroTech® E control system. The
operator interface is a 15-inch, color touch-screen monitor that
is mounted on an adjustable arm. Key operating parameters
and setpoints are easily accessible. For added convenience,
the unit Operating and Maintenance Manual is also viewable
on the touch-screen panel.
In order to track chiller performance, the MicroTech® E
www.DaikinApplied.com 5 CAT 604-9 • MAGNITUDE® MODEL WME CHILLERS
0
10
20
30
40
50
1007550
25
1 P ercent
42 Percent
45 Percent
12 Percent
Percent Ton-Hour Weighting
Percent Load
feaTures and benefITs
controller can record and plot water temperatures, refrigerant
pressures, and motor load. These values can be downloaded
through a convenient USB port in the interface and exported
into a spreadsheet for further evaluation and record purposes.
The trend history screen is shown in Figure 2.
Figure 2: Operator Interface Trend History Screen
®
Table 1: RapidRestore
RapidRestore
Compressor Start
less than 60 sec
after power failure*
* Require s Uninter ruptible Power Su pply (UP S) to the WME c ontrol panel.
** Time i s based on u nit operating at AH RI conditions .
and RideThrough
®
Fast Loading to 80%
Load
75 sec* 5 sec**
®
Times
RideThrough
®
Open Choices™ BAS Flexibility
The exclusive Open Choices™ feature provides seamless
integration and comprehensive monitoring, control, and twoway data exchange using industry standard protocols such as
LonTalk®, BACnet® or Modbus®. Open Choices™ offers simple
and inexpensive exibility to use the Building Automation
System of your choice without an expensive gateway panel.
Open Choices™ benets include:
• Easy to integrate into your BAS of choice
• Factory- or eld-installed communications module
• Integrated control logic for factory options
• Easy-to-use local user interface
• Comprehensive data exchange
The controller memory (no batteries required) also retains
the fault history for troubleshooting and monitoring unit
performance. A time/date stamp is associated with each fault.
The fault history can be downloaded through the USB port.
RapidRestore® and RideThrough
®
Mission critical facilities such as data centers and hospitals
are demanding stringent capabilities for chillers to restart and
reach full load operation quickly in the event of a power loss.
With both RapidRestore® and RideThrough® capabilties,
model WME chillers are engineered to meet those needs.
RapidRestore® – Quickly restores cooling capacity when
power is restored after a power failure
• Compressor Star t – Amount of time required for
the chiller to restart
• Fast Loading – Amount of time required for the
chiller to reach a certain load condition
RideThrough
®
– The ability to maintain operation during
a momentary power loss event. When RideThrough
is enabled and a power loss occurs, the compressor
motor maintains rotation and the VFD catches and
re-synchronizes with the spinning rotor. This permits
the chiller to return to its pre-power loss capacity within
seconds of power being restored.
Certications and Standards
As with many other Daikin Applied chiller products, the
Magnitude® model WME meets all necessary certications
and standards.
AHRI Certication
Part load performance can be presented in terms of Integrated
Part Load Value (IPLV), which is dened by AHRI Standard
550/590. Based on AHRI Standard 550/590, and as shown
in Figure 3, a typical chiller can operate up to 99% of the time
at off-peak conditions and usually spends most of this time at
less than 60% of design capacity.
Figure 3: IPLV Dened by AHRI Standard 550/590
®
RapidRestore® is available for models WME 500 and 700.
RideThrough® is available for all WME models. See Table 1 for
specications.
CAT 604-9 • MAGNITUDE® MODEL WME CHILLERS 6 www.DaikinApplied.com
WME chillers are rated and certied to AHRI Standard
550/590. The ability of the WME chillers to achieve very high
part load efciencies, as evidenced by their world-class IPLV
ratings, is due primarily to the use of a variable frequency
drive and the low friction of the magnetic bearing system. For
more information on variable frequency drives, see Integrated
Variable Frequency Drive on page 5.
Compliance with ASHRAE Std. 90.1
ASHRAE Standard 90.1 was developed to assist owners
and designers make informed choices on a building’s
design, systems, and equipment selection. Model WME
can signicantly exceed ASHRAE 90.1 minimum efciency
requirements.
IBC/OSHPD Seismic Certication
Daikin Magnitude® WME chillers have been tested and
certied by an independent agency, experts in seismic
analysis and design to meet IBC seismic and OSHPD preapproval. Find more information about seismic requirements
and HVAC systems at www.DaikinApplied.com.
®
LEED
For building owners who wish to pursue Leadership in
Energy and Environmental Design (LEED®) Green Building
Certication, the performance of the WME may contribute
points towards Energy and Atmosphere (EA) Credits 1 and 4.
Points earned for EA Credit 1 are awarded based on overall
building efciency. The high efciency of the WME will
contribute to the total points earned for this credit.
EA Credit 4 qualication is partially determined by tonnage
and refrigerant quantity. Vessel stack and tube count
selections will affect the quantity of refrigerant in the chiller.
Consult with your Daikin Applied sales representative for more
information.
feaTures and benefITs
Factory Testing
All of our centrifugal chillers (50 or 60 hertz) are factorytested prior to shipment. Operating and safety controls are
checked for correct settings and operation. This testing helps
reduce eld start-up issues and maintain critical construction
schedules.
www.DaikinApplied.com 7 CAT 604-9 • MAGNITUDE® MODEL WME CHILLERS
Unit Dimensions and Shipping Weight
L
H
W
Figure 4: WME0500-0700S (2-pass, right-hand conguration, with grooved connections)
dImensIons and WeIghTs
dImensIons and WeIghTs
Figure 5: WME1000-1500D (2-pass, right-hand conguration, with grooved connections)
L
W
H
Table 2: WME0500-1500 Dimensions and Shipping Weights
Model Heat Exchanger
E3012 / C2612 168.5 (4280)
WME0500S
E3012 / C3012 168.5 (4280) 71.3 (1811) 96.8 (2459) 14163 (6424)
Length
in (mm)
E3612 / C3012 170.0 (4318) 77.3 (1963) 96.8 (2459) 16329 (7407)
WME0700S
E3612 / C3012 170.0 (4318) 77.3 (1963) 96.3 (2446) 17726 (8040)
E3612 / C3612 170.0 (4318) 83.0 (2108) 102.3 (2598) 20094 (9115)
WME1000D E4216 / C3616 218.3 (5545) 89.0 (2261) 102.8 (2611) 28172 (12779)
WME1500D E4816 / C4216 230.0 (5842) 101.0 (2565) 109.8 (2789) 38114 (17288)
* Shipping weight is ba sed on unit w ith standard tub e cong uratio n.
** Uni t height does not inc lude hei ght of removable eye bolt.
*** Dimens ion for un it with M2 s tandar d motor (60 Hz 440 /460/4 80V).
*** * Dimens ion for unit with M2 standard motor (50 Hz 380/400/415V, 60Hz 380/575V), M2 st andard m otor (60 Hz 380 /460V) with factory- mounte d harmon ic lter, or M3 l ow THD mot or
(50Hz 380/440/460/480/575V).
Width
in (mm)
68.4 (1737) ***
70.7 (1796) ****
Height **
in (mm)
92.8 (2357) 12864 (5835)
Shipping Weight *
lb (kg)
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