McQuay Magnitude WMC Specifications

McQuay Magnitude WMC Specifications
Catalog 604-3
Magnitude™ Magnetic Bearing Centrifugal Chiller
Model WME
400 to 700 tons (1400 to 2461 kW)
3/60/460
HFC-134a
Note: The unit shown is for the default configuration; your unit may be configured differently. Refer to your selection for configuration.
Contents
Features and Benefits . . . . . . . . . . . . . . . . . . . . . . . 4
Technology That Just Makes Sense . . . . . . . . 4
The Compressor Technology . . . . . . . . . . . . . 5
Oil-Free Design Benefits . . . . . . . . . . . . . . . . . 5
Unit Control Features. . . . . . . . . . . . . . . . . . . . 6
IPLV/NPLV Defined . . . . . . . . . . . . . . . . . . . . . 6
Quality Standards . . . . . . . . . . . . . . . . . . . . . . 7
Chiller Identification. . . . . . . . . . . . . . . . . . . . . . . . . 8
Electrical Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Electrical Notes . . . . . . . . . . . . . . . . . . . . . . . 10
Field Wiring Diagram . . . . . . . . . . . . . . . . . . . . . . . 11
Dimension Drawings . . . . . . . . . . . . . . . . . . . . . . . 12
Drawing Notes . . . . . . . . . . . . . . . . . . . . . . . . 12
Standard Head Connection Dimensions . . . . 23
Marine Water Box Dimensions . . . . . . . . . . . 24
Optional External Harmonic Filter Dimensions 25
Physical Data & Weights. . . . . . . . . . . . . . . . . . . . 27
Lifting and Mounting Weights . . . . . . . . . . . . 27
Physical Data - Evaporator . . . . . . . . . . . . . . 28
Physical Data - Condenser . . . . . . . . . . . . . . 28
Refrigeration Diagram . . . . . . . . . . . . . . . . . . . . . . 29
Application Considerations . . . . . . . . . . . . . . . . . 30
Location Requirements . . . . . . . . . . . . . . . . . 30
Optimum Water Temperatures and Flow . . . 30
Condenser Water Temperature. . . . . . . . . . . 31
Retrofit Knockdown . . . . . . . . . . . . . . . . . . . . 32
Options and Accessories . . . . . . . . . . . . . . . . . . . 33
Engineering Guide Specifications . . . . . . . . . . . . 35
Manufactured in an ISO-certified facility
Document:
Original Issue:
Revision Issue:
Replaces:
Software Version:
CAT 604-3
October 2009
July 2012
May 2012
MST Centrifugal Chiller v. 08.0
©2012 McQuay International. Illustrations and data cover the Daikin McQuay 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 E, Open Choices from McQuay International; LEED from the U.S. Green Building Council.
Features and Benefits
Features and Benefits
Magnitude™ Magnetic Bearing Chillers
WME0700
WME0500
500
WMC400D
Model WME
WMC290D
WMC250D
D
WMC150D
D
WMC145D
D
Model WMC
WMC145S
100
For Magnitude™ model WMC, see Catalog 602
200
300
400
500
600
700
Technology That Just Makes Sense
Benefit Summary
The newest member of the Daikin McQuay Magnitude™
Chiller family (Model WME) takes Magnetic Bearing
Centrifugal Chillers to a new level. Building on the
outstanding success of Magnitude model WMC, the newest
Magnetic Bearing centrifugal chiller capitalizes on our 50
years of experience designing and manufacturing centrifugal
compressor chillers. Magnitude model WME shares important
features with its predecessors:
• Lowest Energy Consumption due to highest full and part
load efficiency in its size range.
• State-of-the-art magnetic bearing compressor
• Magnetic Bearing oil-free technology
• Unit-mounted Variable Frequency Drive
• Positive pressure design
• Hermetically sealed direct-drive motor
• User-friendly MicroTech® controls
• Open Choices™ feature for BAS of your choice
• R-134a refrigerant (Zero Ozone Depletion Potential)
• Onboard Refrigerant Containment
• AHRI certification
• Sustainable Performance assured for the operating life of
the chiller. The positive pressure, oil-free design eliminates
performance degradation due to non-condensables and oil
contamination of the refrigerant.
• Increased Reliability Magnetic bearing design needs no oil
management system, and has only one major moving part.
• Enhanced Flexibility Selectable shell and tube sizes
ensures maximum heat exchanger flexibility to meet the
flow and performance requirements of your application.
• Quiet Low sound level with virtually no structure-borne
vibration eliminates the need for additional expensive sound
attenuation accessories.
• Smart Refrigerant Choice The compressor is optimized for
R-134a, a positive pressure refrigerant that has no phase-out
schedule and no ozone depletion - a green solution.
• Smart Controls Onboard digital electronics provide smart
controls, incorporating a system of sophisticated selfdiagnostic monitoring and controls.
• Industry Leading Design Learn more about potential
LEED® points and optional Seismic certification page 7.
4
Cat 604-3
Features and Benefits
The Compressor Technology
Cutting-edge magnetic bearing technology enables outstanding
energy efficiency and reliable, long-life operation. The
Magnitude chiller’s exceptional efficiency is due to the direct
drive magnetic bearing compressor technology. This design
eliminates the friction inherent in traditional centrifugal
compressors that can reduce efficiency.
A digitally-controlled magnetic bearing system replaces
conventional lubricated bearings. The direct drive motor
eliminates the need for a lubricated gear box and associated
power losses. The frictionless compressor shaft is the
compressor’s only moving component, and it levitates on a
magnetic cushion. Sensors at each magnetic bearing provide
real-time feedback to the bearing control system.
Figure 1: Compressor Rotating Assembly
The chillers utilize 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. The innovative design of the MicroTech
E controller will help keep your chiller running efficiently...
day in, day out, for years to come.
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 waffle mounting pads. Spring
vibration isolators are usually not required.
Low Sound Levels
Continuing the legacy of industry-leading sound levels, the
Magnitude chiller has lower sound levels than comparably
sized centrifugal chillers.
Oil-Free Design Benefits
Totally Oil-Free Operation = Greater Efficiency
With no oil to coat the heat transfer surfaces, a gain in
heat exchanger efficiency can be realized.
No Oil Loss = Sustainable Performance
Low Operating Costs
The Magnitude chiller Integrated Part Load Value (IPLV) is
extremely low when compared with any other chillers in this
tonnage range - as low as 0.312. (See page 6 for IPLV
definition and discussion). There is a potential for significant
energy savings at part load and lower ambient temperatures
compared to fixed-speed chillers.
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 (HFC134a) and has no oil, the industry-leading efficiency can be
maintained for the life of the chiller. Additionally, over time
negative pressure chillers (such as those using HCFC-123)
may draw air and moisture into the system, which can
significantly increase energy consumption.
Ultra-Smart Controls
It is only fitting that this revolutionary chiller design be
matched with the advanced Daikin McQuay MicroTech®
control technology to give you the ultimate in chiller
performance and control. Our control design includes many
energy-saving features and interface enhancements not found
in any other unit controller system on the market today.
Cat 604-3
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 reservoirs
• oil coolers
• oil filters
• water regulating 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 traditional 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 filter changes and
leaks are eliminated.
5
Features and Benefits
Open Choices™ BAS Flexibility
Integrated Variable Frequency Drives
The exclusive Open Choices feature provides seamless
integration and comprehensive monitoring, control, and twoway data exchange using industry standard protocols
LonTalk®, BACnet™ or Modbus™. Open Choices offers
simple and inexpensive flexibility to use the Building
Automation System of your choice without an expensive
gateway panel. Open Choice Benefits include:
• Easy to integrate into your BAS of choice
• Factory- or field-installed communications module
• Integrated control logic for factory options
• Easy-to-use local user interface
• Comprehensive data exchange
A Variable Frequency Drive (VFD) modulates compressor
speed in response to load and evaporator/condenser pressure.
VFD technology significantly reduces power input at part load
operation and at lower than design ambient temperatures.
Compliance with ASHRAE Std. 90.1
According to ASHRAE, chillers usually spend 99% of their
operating hours at part load conditions and most of this time at
less than 60% of design capacity. Thus, the part load efficiency
of chillers is all-important.
ASHRAE Standard 90.1 was developed to assist owners and
designers make informed choices on a buildings design,
systems and equipment selection. Magnitude chillers can
significantly exceed ASHRAE 90.1 minimum efficiency
requirements.
The VFD can dramatically reduce annual energy costs when
there are long periods of part load operation and/or low
compressor lift (lower condenser water temperatures). The
attributes of VFD drives produce one of the industry's most
efficient single-compressor chillers based on the all-important
IPLV value. See IPLV/NPLV Defined inset for details on the
AHRI IPLV efficiency rating.
An additional benefit of a VFD is improved power factors. The
power factor will be 95% at 500 tons (AHRI conditions) with
the M3 low harmonic option, and 91% for the M2 standard
VFD (at 500 tons), which may help reduce power costs.
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. Low inrush current at startup is also ideal
for operation with backup or emergency power systems and
can reduce the size of backup generators.
Optional Harmonic Filter
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 NonStandard 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:
IPLVorNPLV
=
1
0 .01 0 .42 0 .45 0 .12
+
+
+
A
B
C
D
Using kW/ton, where:
A = kW/ton (or COP) at 100%
B = kW/ton (or COP) at 75%
C = kW/ton (or COP) at 50%
D = kW/ton (or COP) at 25%
Weighting
The percent of annual ton-hours of operation near the four
rated load points are as follows:
• 1% of operating ton-hours in the bin range 93~100%
load (represented by the rating at 100% load)
• 42% of operating ton-hours in the bin range 62~92%
load (represented by the rating at 75% load)
• 45% of operating ton-hours in the bin range 37~61%
load (represented by the rating at 50% load)
• 12% of operating ton-hours in the bin range 0~36%
load (represented by the rating at 25% load)
6
An optional factory-mounted and wired or field mounted and
wired, passive harmonic filter is available for the WME 500.
Although the harmonic characteristics of the standard VFD
drive are acceptable in the vast majority of applications, this
filter is a cost effective option for those applications that
require reduced harmonics. Under most application conditions,
it is guaranteed to meet the IEEE Standard 519 for harmonic
levels.
Onboard Refrigerant Containment System
Pumpout systems are required on many jobs to collect and
contain the refrigerant charge when access to internal chiller
components is required for service. Magnitude condensers are
designed to hold the entire unit refrigerant charge (<90% full
and at 90°F (32°C) ambient temperature). When service is
required, the refrigerant charge can be pumped down into the
condenser by compressor operation and use of a refrigerant
transfer unit. Elimination of the cost and space requirements of
an external storage tank is a significant Daikin McQuay
advantage.
Unit Control Features
The Magnitude chiller control system consists of three major
components: the unit control panel and the operator interface
panel and the VFD power panel. The touch screen panel is on
an adjustable arm so that it can be positioned comfortably for
the operator. The control panel contains a USB port for
downloading the unit's fault history, major parameter trends,
and unit operating manual that is stored in memory.
Cat 604-3
Features and Benefits
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. 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 stay online. If the
pressure continues to rise, the unit will shut off as a safety
feature.
Demand limit control- Maximum motor current draw can be
set on the panel, adjusted from a remote 4-20 ma signal, or set
via the BAS interface using the Open Choices feature. This
feature controls maximum demand charges during high usage
periods.
User-Friendly Touch Screen Panel
Safe Power Interruption - In the 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 backup
bearing system.
Operation simplicity was one of the main considerations in the
development of the MicroTech E controller. The operator
interface is a 15-inch, Super VGA color touch-screen monitor,
mounted on an adjustable arm. Key operating parameters and
setpoints are easily accessible.
For added convenience, the unit Operating and Maintenance
manual is viewable on the touch-screen panel.
Figure 2: MicroTech E Home Screen
Staging Options (Multiple Chiller Installations)- “The WME
onboard chiller controls are designed to offer chiller staging
and loading options for up to eight WME chillers on multiple
chiller plant configurations. Contact the Chiller Applications
department for more information on this capability.”
Quality Standards
AHRI Certification
We have an on-going commitment to supply chillers that
perform as specified, and participate in the AHRI Certification
Program. On-going performance verification of chiller
capacity and power input plus AHRI certified selection output
provide the owner with specified performance in accordance
with the latest version of AHRI Standard 550/590.
LEED®
Building owners who wish to pursue Leadership in Energy and
Environmental Design (LEED®) Green Building Certification,
the performance of the WME may contribute points towards
Energy and Atmosphere (EA) Credits 1 and 4.
The MicroTech E controller's memory retains a record of faults
and the time/date stamp. The controller memory (no batteries
required) retains the fault history for troubleshooting and
monitoring unit performance.
The MicroTech E 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.
MicroTech E Controller Increases Chiller Economy
Smart features that optimize operating efficiency have been
incorporated into our MicroTech controls:
Direct control of water pumps- Digital output relays provide
automatic lead-lag of the evaporator and condenser pumps,
permitting pump operation only when required.
Chilled-water reset- Accomplished directly on the unit or
remotely by resetting the leaving water temperature based on
the return water temperature. Raising the chilled water setpoint
during periods of light loads can dramatically reduce electrical
consumption.
Cat 604-3
Points earned for EA Credit 1 are awarded based on overall
building efficiency. The great efficiency of the WME will
contribute to the total points earned for this credit.
EA Credit 4 qualification is partially determined by tonnage
and refrigerant quantity. Vessel stack and tube count selections
will affect the quantity of refrigerant in the chiller. Most WME
configurations will qualify for EA Credit 4. Contact your local
Daikin McQuay sales representative for more information.
IBC/OSHPD Seismic Certification
Daikin McQuay Magnitude Chillers have been tested and
certified by an independent agency, experts in seismic analysis
and design to meet IBC seismic and OSHPD pre-approval.
Find more information about seismic requirements and HVAC
systems on the Seismic Information page of
www.daikinmcquay.com.
Factory Testing
All of our centrifugal chillers are factory-tested with water at
specified job conditions on AHRI qualified test stands.
Operating and safety controls are checked for correct settings
and operation. This testing helps reduce field start-up issues
and maintain critical construction schedules.
7
Chiller Identification
Figure 3: Magnitude Code String Chiller Identification
Chiller Identification
WME 0500S S M2 S S AAB E3612 BE 2RA C4 440 CC Y A C3012 BYLL 2RA C4 1050 CC Y A A 134
1
2
3
4
5 6
7
8
9
10
11
12
13 14 15
16
17
18
19
20
21 22 23 24 25
Water-Cooled Chiller
Unit Size
Single Circuit
Motor Code
M2 – Standard
M3 – Low THD (WME0500)
M4 – Low THD (WME0700)
Voltage Code, 3/60/480
A – 3/60/ 440V
R – 3/ 60/460V
S – 3/ 60/480V
Sound Package
Compressor Revision
Evap: Size, dia (in) -length (ft)
Evap Tubes: B=Count, E=Type
If code begins with:
t#$%wFWBQPSBUPSUVCFT
t&'(wFWBQPSBUPSUVCFT
t+,..JYFEFWBQPSBUPSUVCFT
Evap Heads: 2=Pass, R=Right, A=Conn, Type
Passes: 1, 2, 3
Handednesss: R-Right; L-Left
Connection: A-Victaulic; B- Flanged; C/E-Marine Waterbox
Evap Design Press: Ref=200 psi
Waterside: C4=150 psi C5 =300 psi
Leaving Water Temp (x 10)
Evap Tube Sheet and Head Material
NOT USED
Evaporator Revision
Cond: Size, dia (in) length (ft)
Cond. Tubes: Type and Count
If code begins with:
t-/1wFWBQPSBUPSUVCFT
t"#$wFWBQPSBUPSUVCFT
Heads: 2=Pass, R=Right, A=Conn, Type
Passes: 1, 2, 3
Handednesss: R-Right; L-Left
Connection: A-Victaulic; B- Flanged; C/E-Marine Waterbox
Cond Design Press: Ref=200 psi
Waterside: C4=150 psi C5 =300 psi
Max. Leaving Water Temp F (x 10)
Cond. Tube Sheet and Head Material
NOT USED
Compressor Revision
ASME Pressure Vessel Code
Refrigerant
8
Cat 604-3
Chiller Identification
Figure 4: Magnitude Code String Chiller Identification
080 E1 YY EAYYY MBYYYYYY YYYY YY B 1 4 B Y Y 5 1 B A 0500 U Y H Y Y Y Y 2 B
26
27 28
29
30
31
32 33 34 35 36 37 38 39 40 41 42
43
44 45 46 47 48 49 50 51 52
Delayed Start Warranty
Refrigerant Warranty
Future
Future
Future
Future
Extended Warranty
Standard 1st Year Warranty
Chiller Startup (Std on Domestic)
Refrigeration Tons
Unit Revision
ARI/ETL/CETL Listing
Standard/Certified/Witness Test Option
Knockdown:
Y-None
1-Type I
2- Type II
3- Type III
Future
Special
Refrigerant:
A - Full Charge
B/N - Holding Charge
Crating:
4=Shipping Bag/Wood Skid (std.)
Standard Finish
Flow Switch (standard)
Shell and Head Insulation:
H_ = 3/4” Insulation
3_ = 1.5” Insulation
YY = None
NOT USED
BAS Card:
MB = Modbus; LY = LONworks; BM= Bacnet
Controls: MicroTech-E
NOT USED
Expansion Valve
Refrigerant Weight
Cat 604-3
9
Electrical Data
Electrical Notes
Electrical Data
1 Units are available for 460 or 440 to 480 VAC at 60 Hz.
2 Wiring, fuse and wire size must be in accordance with
the National Electric Code (NEC).
3 Important: Voltage unbalance not to exceed 2%.
Notes for field wiring diagram
1 All line-side wiring must be in accordance with the NEC
and be made with copper wire and copper lugs only.
2 A customer furnished 24 to 240 Vac power for alarm
relay coil may be connected at J18. Maximum rating of
the alarm relay coil is 25 VA.
Power Wiring
3 Remote on/off control of unit can be accomplished by
Use only copper supply wires with ampacity based on 75°C
conductor rating. Connections to terminals must be made with
copper lugs and copper wire.
4 If field supplied pressure differential flow switches are
Lug size range is: (3) 3/0 AWG - 500 kc mil.
Power Factor Correction Capacitors
Do not use power factor correction capacitors with(WME
chillers. Doing so can cause harmful electrical resonance in the
system. Correction capacitors are not necessary since VFDs
inherently maintain high power factors
Short Circuit Current Ratings
The standard short circuit rating is 35kA for 460 V. Optional
high short circuit current ratings are available for 65kA, and
100kA with a matching circuit breaker.
The optional circuit breaker must be sized to meet these
ratings.
3-Phase vs. 6-phase Motors
connecting a set of isolated dry contacts at J25.
used, they must be installed across the vessel and not the
pump. They must provide isolated dry contacts at J27.
5 An optional customer supplied 25 VA maximum coil
rated, chilled water pump relay (one or two) may be
wired as shown. This option will cycle the chilled water
pump in response to chiller demand.
6 The condenser water pump must cycle with the unit. A
customer supplied 25 VA maximum coil rated,
condenser water pump relay (one or two) must be wired
as shown. Units used in a free-cooling application must
have condenser water above 50°F before starting.
7 Optional customer supplied 25 VA maximum coil rated
cooling tower fan relays may be wired as shown. This
option will cycle the cooling tower fans as prescribed by
the tower control set points.
8 External 4-20mA signals can be wired to J23 for leaving
(chilled) water reset and to J26 for demand limit.
WME 500 motors are designated as M2 or M3.
• "M2 motors are standard 3-phase and the VFD performs
similar to a 6-pulse drive.
• "M3 motors are 6-phase (connected to a 3-phase power
supply) and the VFD performs similar to a 12-pulse drive.
They provide increased protection against harmonic
distortion, but are not required on most applications.
WME 700 motors are 6-phase and designated as M4. The VFD
performs similar to a 12-pulse drive.
10
Cat 604-3
Field Wiring Diagram
Figure 5: Field Wiring Diagram
Field Wiring Diagram
Cat 604-3
11
Dimension Drawings
Drawing Notes
9 Unit shown has standard right-hand water connections.
Dimension Drawings
1 All dimensions are in inches [millimeters] unless noted
otherwise.
2 Final connections must allow for 0.5 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 MinimumClearances (See Figure 6):
Left-hand connections are available for either vessel. For
right hand evaporator the inlet and outlet nozzles are
reversed. ANSI-flanged connections are available upon
request. When using ANSI-flanged connections add 0.5
inch [13 mm] to each flanged end.
10 Dimensions shown are for units (evaporator / condenser)
with standard design pressures. The waterside design
pressure is 150 PSI {1034 kPa}. Consult the factory for
unit dimensions with higher design pressures.
11 The unit vibration isolator pads are provided for field
installation and when fully loaded are 0.250 inches [6
mm] thick.
• Installation layout should be designed by qualified personnel familiar with local codes.
12 These values are for units with standard wall thickness
• Allow a minimum of 3 ft. on all for sides and the top
sides of chiller to allow for service access.
13 The shipping skid adds 4.00 inches [105 mm] to the
• Provide a minimum of 3 ft. clearance in front of chiller
starter panel or according to NEC or local codes.
14 If main power wiring is brought up through the floor, this
• Provide a minimum of 14 ft. clearance on one end of the
chiller for tube removal.
15 The unit is shipped with an operating charge of
6 Electric Panels- Most codes require 48 inches (1219 mm)
16 Optional marine water box connections are available
clearance in front of control boxes and electrical panels.
Check codes for your location.
7 3.25-inch [83mm] diameter lifting holes are provided.
See installation manual IM 1033 (available on
www.daikinmcquay.com) for lifting instructions.
8 All water connections are given in standard U.S. pipe
sizes. Standard connections are suitable for welding or
victaulic couplings.
copper tubing only.
overall unit height.
wiring must be outside the envelope of the unit.
refrigerant.
upon request.
17 To determine the evaporator and condenser tube size,
compare the Code Item Report generated by the selection
program with Figure 3, page 8. Code items 9 and 17 will
give the evaporator and condenser tube sizes, respectivel.
18 Units with M2 motors and the optional internal harmonic
filter have a two-door power panel in lieu of the standard
single-door.
Figure 6: Minimum Clearances
Minimum 3’ Clearance on all sides and top of chiller; Minimum 14’ clearance on one side for tube removal.
TOP VIEW
Minimum 3’ Clearance
Minimum 14’ Clearance for tube removal
Minimum 3’ Clearance
Minimum 3’ Clearance
12
Cat 604-3
Dimension Drawings
Figure 7: WME0500 - E3612/C3012 - 2-pass - M2 standard motor (60Hz - 440/460/480V) (See page 12 for drawing notes.)
13.7
348
LB
148.2
3764
3
RB
WME0500 M2: 440V (60Hz), 460V (60Hz),
480V (60Hz)
46.9
1192
Z
X
7.6
193
O.I.T.S.
3.1
80
LF
17.0
433
RF
TOP VIEW
3
13.8
349
2.5
63
170.4 EVAP. (UNIT OVERALL)
4329 5, 8, 9
52.3
1327
60.5
1537
VHD
HEIGHT
68.3
1734
EVAP.
RELIEF
VALVE
68.5
1741
UNIT
CONT.
BOX
EVAP
96.8
2460
UNIT
O/A
3
36.6
931
COND.
RELIEF
VALVE
5, 11,13
47.0
1195
COND
19.3
489
Y
3
X
5.3
133
145.4
3694
169.0 COND.
4292 5, 8, 9
Y
Z
5.3
133
69.0
1753
77.0 UNIT O/A
1956 5
5, 8, 9
RIGHT VIEW
FRONT VIEW
148.2
3764
1.13
29
TYP.
MTG
HOLE
ENVELOPE OF UNIT
14
8.0
203
TYP.
MOUNTING FEET
77.0
1956
7.2
183
Z
5.1
129
25.5
646
UNIT CONT.
BOX
6
X
1.4
35
TYP.
40.1
1019
16.0
406
92.7
2356
6, 14
TOP VIEW
Cat 604-3
40.3
1023
4.0
102
TYP.
This information is accurate at time of
printing. McQuay reserves the right to
change design, specification and product
data without notice. Purchaser must
determine that the equipment is fit and
sufficient for the job specifications. No
change to this data may be made unless
approved in writing by McQuay. McQuay's
Limited Product Warranty applies to all
McQuay equipment.
ALL DIMENSIONS ARE IN DECIMAL
INCHES AND [MILLIMETERS]
333904501
00
DRAWING NUMBER
REV.
13
Dimension Drawings
Figure 8: WME0500 - E3612/C3012 - 2-pass - M2 Motor (50Hz 380/400/415V - 60Hz 380/575V)
WWME0500 - E3012/C2612 - 2-pass - M2 motor (50Hz 380/400/460V) with Factory-mounted Harmonic Filter
WME0500 - E3612/C3012 - 2-pass - M3 Low THD Motor (50Hz 380/400/415V - 60Hz 380/440/460/480/575V)
(See page 12 for drawing notes.)
13.7
348
LB
148.2
3764
3
WME0500 M2: 380V (50Hz), 400V (50Hz),
415V (50Hz), 380V (60Hz),
575V (60Hz).
RB
WME0500 M3: 380V (50Hz), 400V (50Hz),
415V (50Hz), 380V (60Hz),
440V (60Hz), 460V (60Hz),
480V (60Hz), 575V (60Hz).
46.9
1192
Z
X
7.6
193
O.I.T.S.
3.1
80
LF
17.0
433
RF
TOP VIEW
3
13.8
349
2.5
63
170.4 EVAP. (UNIT OVERALL)
4329 5, 8, 9
52.3
1327
60.0
1523
VFD
HEIGHT
68.3
1734
EVAP.
RELIEF
VALVE
UNIT
CONT.
BOX
EVAP
3
36.6
931
COND.
RELIEF
VALVE
68.5
1741
96.3
2446
UNIT
O/A
5, 11,13
47.0
1195
COND
Y
19.3
489
X
Y
3
5.3
133
169.0 COND.
4292 5, 8, 9
145.4
3694
Z
5.3
133
69.0
1753
5, 8, 9
77.0 UNIT O/A
1956 5
FRONT VIEW
RIGHT VIEW
148.2
3764
1.13
29
TYP.
MTG
HOLE
ENVELOPE OF UNIT
14
MOUNTING FEET
77.0
1956
7.2
183
Z
5.1
129
This information is accurate at time of
printing. McQuay reserves the right to
change design, specification and product
data without notice. Purchaser must
determine that the equipment is fit and
sufficient for the job specifications. No
change to this data may be made unless
approved in writing by McQuay. McQuay's
Limited Product Warranty applies to all
McQuay equipment.
27.8
707
UNIT CONT.
BOX
6
X
1.4
35
40.1
1019
16.0
406
83.5
2122
6, 14
TOP VIEW
14
4.0
102
TYP.
54.0
1372
8.0
203
TYP.
ALL DIMENSIONS ARE IN DECIMAL
INCHES AND [MILLIMETERS]
333904601
00
DRAWING NUMBER
REV.
Cat 604-3
Dimension Drawings
Figure 9: WME0500 - E3012/C2612 -2-pass, M2 standard motor (60 Hz 440/460/480V) (See page 12 for drawing notes.)
148.2
3764
13.7
348
LB
3
RB
WME0500 M2: 440V (60Hz), 460V (60Hz),
480V (60Hz)
38.9
989
Z
X
5.1
130
TOP VIEW
3.1
80
17.0
433
3
RF
O.I.T.S.
LF
48.6
1235
169.0 EVAP. UNIT OVERALL
4292 5, 8, 9
15.6
397
2.5
63
60.5
1537
VFD
HEIGHT
61.1
1551
EVAP
RELIEF
VALVE
UNIT
CONT.
BOX
61.8
1568
92.9
2359
UNIT
O/A
3
5,11,13
32.6
829
COND
RELIEF
VALVES
17.3
438
Y
X
3
5.3
133
5, 8, 9
Y
Z
5.3
133
145.4
3694
42.8
1087
58.0
1473
66.0
1676
68.4 UNIT O/A
1737 5
164.6 COND.
4181 5, 8, 9
FRONT VIEW
SIDE VIEW
148.2
3764
This information is accurate at time
ENVELOPE OF UNIT
8.0
203
TYP.
14
MOUNTING FEET
1.13
29
TYP.
MTG.
HOLE
of printing. McQuay reserves the
right to change design, specification
and product data without notice.
Purchaser must determine that the
equipment is fit and sufficient for the
job specifications. No change to this
66.0
1676
data may be made unless approved
7.2
183
Z
2.6
65
X
in writing by McQuay. McQuay's
21.0
533
25.4
645
UNIT CONT.
BOX
Limited Product Warranty applies to
all McQuay equipment.
6
1.4
35
40.1
1019
6, 14
16.0
406
92.7
2356
148.2
3764
40.3
1023
4.0
102
TYP.
ALL DIMENSIONS ARE IN DECIMAL
INCHES AND [MILLIMETERS]
333904101
00
DRAWING NUMBER
REV.
TOP VIEW
Cat 604-3
15
Dimension Drawings
Figure 10: WME500 - E3012/C2612 - 2-pass M2 Standard motor (50Hz 380/400/415V) (60Hz 380/575V)
WME500 - E3012/C2612 - 2-pass M3 Low THD motor (50Hz 380/400WME/415) (60Hz 380/440/460/480/575V)
WME500 - E3012/C2612 - 2-pass M2 Standard Motor (60HZ 380/460V) with Factory-mounted Harmonic Filter
(See page 12 for drawing notes.)
148.2
3764
13.7
348
LB
3
RB
WME0500 M2: 380V (50Hz), 400V (50Hz),
415V (50Hz), 380V (60Hz),
575V (60Hz).
WME0500 M3: 380V (50Hz), 400V (50Hz),
415V (50Hz), 380V (60Hz),
440V (60Hz), 460V (60Hz),
480V (60Hz), 575V (60Hz).
38.9
989
Z
X
5.1
130
O.I.T.S.
LF
17.0
433
RF
3.1
80
TOP VIEW
51.0
1294
18.0
456
3
169.0 EVAP.(UNIT OVERALL)
4292 5, 8, 9
2.5
63
60.0
1523
VFD
HEIGHT
61.1
1551
EVAP
RELIEF
VALVE
UNIT
CONT.
BOX
3
32.6
829
COND
RELIEF
VALVES
61.8
1568
92.3
2345
UNIT
O/A
5,11,13
42.8
1087
17.3
438
Y
Y
3
X
5.3
133
145.4
3694
Z
5.3
133
58.0
1473
66.0
1676
70.7 UNIT OVALL
5
1796
5, 8, 9
164.6 COND.
4181 5, 8, 9
SIDE VIEW
FRONT VIEW
148.2
3764
ENVELOPE OF UNIT
14
8.0
203
TYP.
MOUNTING FEET
66.0
1676
1.13
29
TYP.
MTG.
HOLE
7.2
183
2.6
65
Z
23.4
594
30.1
764
UNIT CONT.
BOX
This information is accurate at time
of printing. McQuay reserves the
right to change design, specification
and product data without notice.
Purchaser must determine that the
equipment is fit and sufficient for the
job specifications. No change to this
data may be made unless approved
in writing by McQuay. McQuay's
Limited Product Warranty applies to
all McQuay equipment.
6
X
1.4
35
TYP.
6, 14
40.1
1019
16.0
406
148.2
3764
16
54.0
1372
83.5
2122
TOP VIEW
4.0
102
TYP.
ALL DIMENSIONS ARE IN DECIMAL
INCHES AND [MILLIMETERS]
333904201
00
DRAWING NUMBER
REV.
Cat 604-3
Dimension Drawings
Figure 11: WME0500 - E3012/C3012 - 2 pass, M2 Standard motor (60Hz 440/460/480V, (See page 12 for drawing notes.)
148.2
3764
13.7
348
LR
RB
3
WME0500 M2: 440V (60Hz), 460V (60Hz),
480V (60Hz)
43.9
1116
Z
X
7.6
193
O.I.T.S.
LF
3.1
80
17.0
433
RF
TOP VIEW
3
49.2
1249
13.7
347
2.5
63
169.0 EVAP. UNIT OVERALL
4292 5, 8, 9
60.5
1537
VFD
HEIGHT
61.8
1570
EVAP
RELIEF
VALVE
3
UNIT
CONT.
BOX
EVAP
36.6
931
COND
RELIEF
VALVE
5,11,13
43.6
1107
COND
19.3
489 Y
Y
3
X
5.3
133
145.4
3694
169.0 CONDENSER
4292 5, 8, 9
Z
5.3
133
5, 8, 9
1.13
29
TYP.
MTG.
HOLE
ENVELOPE OF UNIT
14
8.0
203
TYP.
MOUNTING FEET
71.0
1803
This information is accurate at time
of printing. McQuay reserves the
right to change design, specification
and product data without notice.
Purchaser must determine that the
equipment is fit and sufficient for the
job specifications. No change to this
data may be made unless approved
in writing by McQuay. McQuay's
Limited Product Warranty applies to
all McQuay equipment.
7.2
183
5.1
129
Z
25.4
645
UNIT CONT.
BOX
25.5
646
6
X
Cat 604-3
63.0
1600
71.0 UNIT OVERALL
1803 5
RIGHT VIEW
FRONT VIEW
148.2
3764
1.4
35
TYP.
62.5
1589
96.8
2460
UNIT
O/A
6, 14
16.0
406
40.1
1019
92.7
2356
TOP VIEW
40.3
1023
4.0
102
TYP.
ALL DIMENSIONS ARE IN DECIMAL
INCHES AND [MILLIMETERS]
333904301
00
DRAWING NUMBER
REV.
17
Dimension Drawings
Figure 12: WME500 E3012/C3012, M2 Motor (50 Hz, 380-415V / 60Hz, 380-575V)
WME500 E3012/C3012, M3 Motor (50 Hz, 400-415 / (60 Hz, 380-575V)
WME500 E3012/C3012, M2 Motor with Internal Harmonic Filter (60 Hz, 380-460V)
WME
18
Cat 604-3
Dimension Drawings
Figure 13: Model WME0700 - E3612/C3012 - 2-pass, M4 motor, 3/4” tubes (To determine tube size, see note 17 on page 12.)
LB
148.2
3764
13.7
348
RB
3
46.9
1192
4.0
101
Z
O.I.T.S.
6.2
157
LF
16.8
427
TOP VIEW
3
X
77.3
1962
RF
170.4
4329
52.3
1327
13.8
349
2.5
63
EVAP. (UNIT OVERALL)
4,6,7
M4
VFD
68.3
1736
EVAP
RELIEF
VALVE
3
36.7 3
931
COND
RELIEF
VALVES
60.0
1523
VFD
HEIGHT
96.3
2446
UNIT O.A.
4,9,11
UNIT
CONTR.
BOX
EVAP.
68.5
1741
47.0
1195
19.3
489
COND.
5.3
133
Y
UNIT O.A.
4
COND.
4,6,7
169.0
4292
X
5.3
133
145.4
3694
4.0
102
REF.
Y
4,6,7
69.0
1753
77.0
1956
Z
FRONT VIEW
RIGHT VIEW
CL
12.0
305
NOM.
TYP.
16.0
406
CL
10.0
[254]
NOM.
TYP.
8.1
207
OUTLET
CL
CL
8.1
207
INLET
9.8
248
OUTLET
9.8
248
INLET
16.0
406
6,7
6,7
CONDENSER HEAD 2-PASS
VICTAULIC 150 PSI WATERSIDE
EVAPORATOR HEAD 2-PASS
VICTAULIC 150 PSI WATERSIDE
148.2
3764
ENVELOPE OF UNIT
12
8.0
203
TYP.
1.13
29
MNTG. HOLE
TYP.
MOUNTING FEET
77.0
1956
7.2
183
5.1
129
4.0
102
TYP.
30.1
764
UNIT CONTR.
BOX
M4
VFD
4
4,12,13
Z
1.4
35
TYP.
40.1
1019
16.0
406
84.2
2139
54.0
1372
27.8
707
*333564404002*
WME700 - E3612 BE 2RA C3012 BLYY 2RA M4 150PSI
WME0700 E36C30 Right-hand 3/4” tubes
This information is accurate at time of printing. McQuay reserves
the right to change design, specification and product data without
notice. Purchaser must determine that the equipment is fit and
sufficient for the job specifications. No change to this data may be
made unless approved in writing by McQuay. McQuay's Limited
Product Warranty applies to all McQuay equipment.
X
Cat 604-3
19
Dimension Drawings
Figure 14: Model WME0700 - E3612/C3012 - 2-pass, M4 motor, 1” tubes (To determine tube size, see note 17 on page 12.)
LB
13.7
348
148.2
3764
RB
3
46.9
1192
4.0
101
Z
O.I.T.S.
6.2
157
LF
RF
16.8
427
TOP VIEW
3
X
170.4
4329
52.3
1327
3
EVAP.
36.7 3
931
COND
RELIEF
VALVES
13.8
349
2.5
63
EVAP. (UNIT OVERALL)
4,6,7
M4
VFD
68.3
1736
EVAP
RELIEF
VALVE
60.0
1523
VFD
HEIGHT
96.3
2446
UNIT O.A.
4,9,11
UNIT
CONTR.
BOX
68.5
1741
47.0
1195
19.3
489
COND.
5.3
133
Y
UNIT O.A.
4
77.3
1962
169.0
4292
X
145.4
3694
COND.
4,6,7
5.3
133
Y
4,6,7
4.0
102
REF.
Z
FRONT VIEW
16.0
406
69.0
1753
77.0
1956
12.0
[305]
NOM.
TYP.
CL
RIGHT VIEW
16.0
406
CL
10.0
[254]
NOM.
TYP.
8.1
207
OUTLET
9.8
248
OUTLET
CL
CL
8.1
207
INLET
9.8
248
INLET
6,7
6,7
EVAPORATOR HEAD 2-PASS
VICTAULIC 150 PSI WATERSIDE
CONDENSER HEAD 2-PASS
VICTAULIC 150 PSI WATERSIDE
148.2
3764
ENVELOPE OF UNIT
12
8.0
203
TYP.
1.13
29
MOUNTING. HOLE
TYP.
MOUNTING FEET
77.0
1956
7.2
183
333564401
WME700 - E3612 EG 2RA C3012 EBYY 2RA M4 150PSI
5.1
129
4.0
102
TYP.
30.1
764
UNIT CONTR.
BOX
M4
VFD
4
27.8
707
This information is accurate at time of printing. McQuay reserves
the right to change design, specification and product data without
notice. Purchaser must determine that the equipment is fit and
sufficient for the job specifications. No change to this data may be
made unless approved in writing by McQuay. McQuay's Limited
Product Warranty applies to all McQuay equipment.
4,12,13
Z
1.4
35
TYP.
40.1
1019
16.0
406
84.2
2139
54.0
1372
X
20
Cat 604-3
Dimension Drawings
Figure 15: Model WME0700 - E3612/C3612 - 2-pass, M4 motor, 3/4” tubes (To determine tube size, see note 17 on page 12.)
LB
13.7
348
148.2
3764
3
RB
52.9
1345
7.0
178
Z
O.I.T.S.
6.2
157
LF
RF
TOP VIEW
16.8
427
3
X
170.4
4329
3
42.7
1084
COND
RELIEF
VALVES
60.0
1523
VFD
HEIGHT
UNIT
CONTR.
BOX
EVAP.
UNIT O.A.
4
4,6,7
M4
VFD
74.1
1882
EVAP
RELIEF
VALVE
79.2
2012
2.5
63
EVAP. (UNIT OVERALL)
102.3
2599
UNIT O.A.
4,9,11
74.3
1887
52.8
1341
3
22.3
565
COND.
5.3
133
Y
170.4
4329
X
4.0
102
REF.
5.3
133
145.4
3694
4,6,7
COND.
4,6,7
16.8
425
Y
75.0
1905
RIGHT VIEW
16.0
406
9.8
248
OUTLET
9.8
248
INLET
16.0
406
83.0
2108
Z
FRONT VIEW
58.3
1480
CL
12.0
[305]
NOM.
TYP.
12.0
[305]
NOM.
TYP.
9.8
248
OUTLET
CL
CL
9.8
248
INLET
CL
6,7
6,7
EVAPORATOR HEAD 2-PASS
VICTAULIC 150 PSI WATERSIDE
CONDENSER HEAD 2-PASS
VICTAULIC 150 PSI WATERSIDE
148.2
3764
ENVELOPE OF UNIT
12
8.0
203
TYP.
1.13
29
MOUNTING HOLE
TYP.
MOUNTING FEET
83.0
2108
333564504
WME700 - E3612 BE 2RA C3612 BLYY 2RA M4 150PSI
7.2
183
6.9
176
4.0
102
30.1
764
UNIT CONTR.
BOX
M4
VFD
31.9
810
This information is accurate at time of printing. McQuay reserves
the right to change design, specification and product data without
notice. Purchaser must determine that the equipment is fit and
sufficient for the job specifications. No change to this data may be
made unless approved in writing by McQuay. McQuay's Limited
Product Warranty applies to all McQuay equipment.
4
Z
1.4
35
TYP.
40.1
1019
16.0
406
84.2
2139
4,12,13
54.0
1372
X
Cat 604-3
21
Dimension Drawings
Figure 16: Model WME0700 - E3612/C3612 - 2-pass, M4 motor, 1” tubes (To determine tube size, see note 17 on page 12.)
LB
13.7
348
148.2
3764
3
RB
52.9
1345
7.0
178
Z
O.I.T.S.
6.2
157
LF
RF
TOP VIEW
16.8
427
3
X
170.4
4329
3
42.7
1084
COND
RELIEF
VALVES
60.0
1523
VFD
HEIGHT
UNIT
CONTR.
BOX
EVAP.
UNIT O.A.
4
4,6,7
M4
VFD
74.1
1882
EVAP
RELIEF
VALVE
79.2
2012
2.5
63
EVAP. (UNIT OVERALL)
102.3
2599
UNIT O.A.
4,9,11
74.3
1887
52.8
1341
3
22.3
565
COND.
5.3
133
Y
170.4
4329
X
4.0
102
REF.
5.3
133
145.4
3694
4,6,7
COND.
4,6,7
16.8
425
Y
16.0
406
83.0
2108
Z
FRONT VIEW
58.3
1480
75.0
1905
RIGHT VIEW
16.0
406
12.0
[305]
NOM.
TYP.
CL
CL
12.0
[305]
NOM.
TYP.
9.8
248
OUTLET
9.8
248
OUTLET
CL
CL
9.8
248
INLET
9.8
248
INLET
6,7
6,7
EVAPORATOR HEAD 2-PASS
VICTAULIC 150 PSI WATERSIDE
CONDENSER HEAD 2-PASS
VICTAULIC 150 PSI WATERSIDE
148.2
3764
ENVELOPE OF UNIT
12
8.0
203
TYP.
1.13
29
MOUNTING HOLE
TYP.
MOUNTING FEET
83.0
2108
7.2
183
333564501
6.9
176
4.0
102
30.1
764
UNIT CONTR.
BOX
M4
VFD
4
Z
1.4
35
TYP.
40.1
1019
16.0
406
84.2
2139
31.9
810
WME700 - E3612 EG 2RA C3612 EBYY 2RA M4 150PSI
This information is accurate at time of printing. McQuay reserves
the right to change design, specification and product data without
notice. Purchaser must determine that the equipment is fit and
sufficient for the job specifications. No change to this data may be
made unless approved in writing by McQuay. McQuay's Limited
Product Warranty applies to all McQuay equipment.
4,12,13
54.0
1372
X
22
Cat 604-3
Dimension Drawings
Standard Head Connection Dimensions
Figure 17: Standard Dished Head Connection Dimensions (Victaulic and Flanged)
EVAPORATOR DISHED HEAD SELECTION
*BB
NOTE: * - ADD .500 INCH FOR FLANGED CONNECTION
(SEE DETAIL LOWER LEFT)
*BB
*GG
AA
AA
*GG
OUTLET HEAD POSITION
ON OPPOSITE END OF UNIT
FF TYP.
AA
FF TYP.
OUT
IN
IN
RIGHT END REPRESENTATIVE VIEW
( TYPICAL OF ALL STACKS WITH 2 PASS
HEADS & 3/4" EVAP TUBING )
FF TYP.
AA
OUT
IN
OUT
*BB
*BB
EVAPORATOR, 1 PASS
ALL UNITS
EVAPORATOR, 2 PASS
UNITS WITH 1" & MIX TUBING
EVAPORATOR, 2 PASS
UNITS WITH 3/4" TUBING
EVAPORATOR, 3 PASS
UNITS WITH 3/4" TUBING
NOTE: * - ADD .500 INCH FOR FLANGED CONNECTION
(SEE DETAIL LOWER LEFT)
CONDENSER DISHED HEAD SELECTION
UU
STANDARD RETURN DISHED HEAD
FOR EVAPORATOR AND CONDENSER
*GG
"XX" HOLES, "YY" DIAMETER
ON "ZZ" BOLT CIRCLE
OUT
OUT
AA
IN
VV
WW
NOTE: FLANGE BOLT HOLES MUST STRADDLE
VERTICAL CENTERLINE ON CONNECTIONS
CONDENSER, 1 PASS
ALL UNITS
TYPICAL 150 CLASS ANSI
FLANGE CONNECTION
*BB
OUTLET HEAD POSITION ON
OPPOSITE END OF UNIT
FF TYP.
IN
AA
CONDENSER, 2 PASS
ALL UNITS
FF TYP.
AA
*BB
*BB
CONDENSER, 3 PASS
ALL UNITS
Table 1: Standard Dished Head Connection Dimensions - Victaulic Connections
Diamete
r
Evap
E30
E36
Cond
C26
C30
C36
1 PASS
AA
14.00
16.00
AA
10.75
14.00
16.00
BB
16.00
16.00
BB
13.00
16.00
16.00
2 PASS
AA
10.75
12.75
AA
8.63
10.75
12.75
BB
16.00
16.00
BB
13.00
16.00
16.00
3 PASS
FF
GG
8.13 16.00
9.75 16.00
FF
GG
7.07 13.00
8.13 16.00
9.75 16.00
AA
6.63
8.63
AA
6.63
6.63
8.63
BB
FF
16.00 10.19
16.00 11.81
BB
FF
13.00 8.07
16.00 10.19
16.00 11.81
Return
Head
UU
9.78
11.26
UU
8.38
9.78
11.26
Table 2: Standard Dished Head Connection Dimensions - Flanged Connections
Diamete
r
Evap
E30
E36
Cond
C26
C30
C36
1 PASS
AA
14.00
16.00
AA
10.75
14.00
16.00
BB
16.50
16.50
BB
13.50
16.50
16.50
2 PASS
AA
10.75
12.75
AA
8.63
10.75
12.75
BB
16.50
16.50
BB
13.50
16.50
16.50
3 PASS
FF
GG
8.13 16.50
9.75 16.50
FF
GG
7.07 13.50
8.13 16.50
9.75 16.50
AA
6.63
8.63
AA
6.63
6.63
8.63
BB
FF
16.50 10.19
16.50 11.81
BB
FF
13.50 8.07
16.50 10.19
16.50 11.81
Return
Head
UU
9.78
11.26
UU
8.38
9.78
11.26
Table 3: 150 Class ANSI Flange Connection Dimensions (Detail from Figure 17)
Nozzle
Dia.
VV
WW
XX
YY
ZZ
6.63
8.63
10.75
12.75
14.00
16.00
11.00
13.50
16.00
19.00
21.00
23.50
1.56
1.75
1.94
2.19
2.25
2.50
8.00
8.00
12.00
12.00
12.00
16.00
0.88
0.88
1.00
1.00
1.12
1.12
9.50
11.75
14.25
17.00
18.75
21.25
Cat 604-3
Drawing & Dimension 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.
23
Dimension Drawings
Marine Water Box Dimensions
Marine water boxes with removable end covers are an available option on all evaporator and condenser sizes.
Figure 18: Marine Water Box Dimensions with Victaulic or Flanged Connections
EVAPORATOR MARINE WATER BOX SELECTION
EEE
IN
OUT
EEE
DDD
CCC
EEE
NOTE: * - ADD .500 INCH FOR FLANGED CONNECTION
(SEE DETAIL LOWER LEFT)
CCC
DDD
IN
DDD
CCC
DDD
CCC
AAA
*GGG
OUTLET HEAD POSITION
ON OPPOSITE END OF UNIT
AAA
FFF TYP.
OUT
FFF
AAA
AAA
RIGHT END REPRESENTATIVE VIEW
( TYPICAL OF ALL STACKS WITH 2 PASS
HEADS & 3/4" EVAP TUBES )
FFF
TYP.
EEE
IN
*BBB
*BBB
*BBB
*GGG
*BBB
EVAPORATOR, 2 PASS
UNITS WITH 1" & MIX TUBING
EVAPORATOR, 1 PASS
ALL UNITS
EVAPORATOR, 3 PASS
UNITS WITH 3/4" TUBING
EVAPORATOR, 2 PASS
UNITS WITH 3/4" TUBING
NOTE: * - ADD .500 INCH FOR FLANGED CONNECTION
(SEE DETAIL LOWER LEFT)
CONDENSER MARINE WATER BOX SELECTION
UU
STANDARD RETURN HEAD FOR
EVAPORATOR AND CONDENSER
CCC
DDD
CCC
DDD
EEE
"XX" HOLES, "YY" DIAMETER
ON "ZZ" BOLT CIRCLE
*BBB
OUTLET HEAD POSITION
ON OPPOSITE END OF UNIT
CCC
DDD
*GGG
EEE
AAA
OUT
VV
AAA
IN
WW
FFF
TYP.
IN
FFF
TYP.
AAA
TYPICAL 150 CLASS ANSI
FLANGE CONNECTION
EEE
*BBB
NOTE: FLANGE BOLT HOLES MUST STRADDLE
VERTICAL CENTERLINE ON CONNECTIONS
CONDENSER, 1 PASS
CONDENSER, 2 PASS
*BBB
CONDENSER, 3 PASS
Note: On certain models connection dimensions may vary; some models will have rear-facing MWB connections. Consult your
Item Drawings for unit-specific configuration and dimensions.
Table 4: Marine Waterbox Dimensions - Victaulic Connections
Diameter
1 PASS
2 PASS
Evap
AAA BBB CCC DDD EEE AAA
E30
14.00 21.00 27.75 26.50 13.25 10.75
E36
16.00 24.00 43.50 42.00 21.00 12.75
Cond AAA BBB CCC DDD EEE AAA
C26 10.75 19.00 21.25 20.00 10.00 8.63
C30 14.00 21.00 27.75 26.50 13.25 10.75
C36 16.00 24.00 43.50 42.00 21.00 12.75
BBB CCC DDD EEE
21.00 27.75 26.50 13.25
24.00 29.50 28.00 14.00
BBB CCC DDD EEE
19.00 21.25 20.00 10.00
21.00 27.75 26.50 13.25
24.00 29.50 28.00 14.00
FFF
10.19
11.81
FFF
8.07
10.19
11.81
Return
Head
UU
9.78
11.26
UU
8.38
9.78
11.26
FFF
10.19
11.81
FFF
8.07
10.19
11.81
Return
Head
UU
9.78
11.26
UU
8.38
9.78
11.26
3 PASS
FFF
8.13
9.75
FFF
7.07
8.13
9.75
GGG
21.00
24.00
GGG
19.00
21.00
24.00
AAA BBB CCC DDD
6.63 21.00 27.75 26.50
8.63 24.00 29.50 28.00
AAA BBB CCC DDD
6.63 19.00 21.25 20.00
6.63 21.00 27.75 26.50
8.63 24.00 29.50 28.00
EEE
13.25
14.00
EEE
10.00
13.25
14.00
Table 5: Marine Waterbox Dimensions - Flanged Connections
Diamete
r
Evap
E30
E36
Cond
C26
C30
C36
1 PASS
AAA
14.00
16.00
AAA
10.75
14.00
16.00
BBB
21.50
24.50
BBB
19.50
21.50
24.50
CCC
27.75
43.50
CCC
21.25
27.75
43.50
2 PASS
DDD
26.50
42.00
DDD
20.00
26.50
42.00
EEE
13.25
21.00
EEE
10.00
13.25
21.00
AAA
10.75
12.75
AAA
8.63
10.75
12.75
BBB
21.50
24.50
BBB
19.50
21.50
24.50
CCC
27.75
29.50
CCC
21.25
27.75
29.50
DDD
26.50
28.00
DDD
20.00
26.50
28.00
3 PASS
EEE
13.25
14.00
EEE
10.00
13.25
14.00
FFF
8.13
9.75
FFF
7.07
8.13
9.75
GGG
21.50
24.50
GGG
19.50
21.50
24.50
AAA
6.63
8.63
AAA
6.63
6.63
8.63
BBB
21.50
24.50
BBB
19.50
21.50
24.50
CCC
27.75
29.50
CCC
21.25
27.75
29.50
DDD
26.50
28.00
DDD
20.00
26.50
28.00
EEE
13.25
14.00
EEE
10.00
13.25
14.00
Table 6: 150 Class ANSI Flange Connection Dimensions (Detail from Figure 18)
Nozzle
Dia.
6.63
8.63
10.75
12.75
14.00
16.00
24
VV
11.00
13.50
16.00
19.00
21.00
23.50
WW
1.56
1.75
1.94
2.19
2.25
2.50
XX
8.00
8.00
12.00
12.00
12.00
16.00
YY
0.88
0.88
1.00
1.00
1.12
1.12
ZZ
9.50
11.75
14.25
17.00
18.75
21.25
Drawing & Dimension 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.
Cat 604-3
Dimension Drawings
Optional External Harmonic Filter Dimensions
Figure 19: Model AUHF 300, 350, 400, Free Standing, 460Volt, Harmonic Filter
Cable
Entry/Exit
(Both Sides)
Table 7: Model AUHF Dimensions from Figure 19
MODEL
A
B
C
AUHF 300-460V
AUHF 350-460V
AUHF 400-460V
in.
(mm)
in.
(mm)
in.
(mm)
26.2
(664)
32.0
(813)
32.0
(813)
25.0
(636)
29.5
(749)
29.5
(749)
45.0
(1143)
51.5
(1308)
51.5
(1308)
D
E
F
G
H
J
K
L
WEIGHT
21.2
(538)
25.6
(651)
25.6
(651)
19.0
(483)
23.5
(597)
23.5
(597)
21.0
(533)
25.5
(648)
25.5
(648)
21.5
(546)
23.5
(597)
23.5
(597)
23.3
(591)
25.2
(641)
25.2
(641)
4.0
(102)
6.4
(164)
6.4
(164)
21.5
(546)
23.5
(597)
23.5
(597)
19.0
(483)
23.5
(597)
23.5
(597)
585 lbs
266 kg
800 lbs
363 kg
946 lbs
429 kg
Notes:
1 Requires front access only.
2 Allow 6-inches at rear for ventilation.
Cat 604-3
25
Dimension Drawings
Figure 20: Model ATL 300, 350, 400, Free Standing, 600Volt, Auto Transformer Harmonic Filter
Cable
Entry/Exit
(Both Sides)
Table 8: Model ATL Dimensions & Weights, 60Hz; 380V, 440V, 600V, from Figure 20
MODEL
in.
(mm)
in.
(mm)
in.
(mm)
ATL 300
ATL 350
ATL 400
A
B
C
D
E
F
G
H
J
K
L
WEIGHT
39.5
(1004)
44.0
(1119)
44.0
(1119)
34.1
(867)
38.0
(965)
38.0
(965)
59.0
(1499)
66.0
(1676)
66.0
(1676)
29.8
(756)
33.7
(855)
33.7
(855)
32.0
(813)
36.0
(914)
36.0
(914)
34.0
(864)
38.0
(965)
38.0
(965)
24.0
(610)
26..0
(660)
26..0
(660)
26.1
(663)
28.1
(714)
28.1
(714)
6.6
(167)
6.6
(167)
6.6
(167)
24.0
(610)
26.0
(660)
26.0
(660)
32.0
(813)
36.0
(914)
36.0
(914)
1690 lbs
(767 kg)
1890 lbs
(857 kg)
2210 lbs
(1002 kg)
Table 9: Model ATL Dimensions & Weights, 50Hz, 380/400Vfrom Figure 20
MODEL
ATL 300
ATL 350
ATL 400
in.
(mm)
in.
(mm)
in.
(mm)
A
B
C
D
E
F
G
H
J
K
L
WEIGHT
44.0
(1119)
44.0
(1119)
44.0
(1119)
38.0
(965)
38.0
(965)
38.0
(965)
66.0
(1676)
66.0
(1676)
66.0
(1676)
33.7
(855)
33.7
(855)
33.7
(855)
36.0
(914)
36.0
(914)
36.0
(914)
38.0
(965)
38.0
(965)
38.0
(965)
26..0
(660)
26.0
(660)
26..0
(660)
28.1
(714)
28.1
(714)
28.1
(714)
6.6
(167)
6.6
(167)
6.6
(167)
26.0
(660)
26.0
(660)
26.0
(660)
36.0
(914)
36.0
(914)
36.0
(914)
1900 lbs
(862 kg)
2318 lbs
(1052 kg)
2475 lbs
(1122 kg)
Notes:
1 Requires front access only.
2 Allow 6-inches at rear for ventilation.
26
Cat 604-3
Physical Data & Weights
Lifting and Mounting Weights
Physical Data & Weights
Figure 21: Corner Identification
NOTES:
1 The block shown above is the mounting footprint, not the entire unit footprint.
2 Lifting holes in the top of the tube sheets are 3.25-inch (83 mm) diameter.
3 Mounting holes in the feet are 1.125-inch diameter.
4 Weights are based on standard configuration; actual weight may vary depending on options. Consult Certified Drawing
Table 10: Lifting and Mounting Weights and Centes of Gravity
WM E M o de l
500
500
500
V e s s e l M o de ls
E3012/C2612
E3012/C2612
E3012/C3012
M2
M3
M2
500
E3012/C3012
M3
500
E3612/C3012
M2
500
E3612/C3012
M3
700
E3612/C3012
M4
700
E3612/C3612
M4
WM E M o de l
500
500
V e s s e l M o de ls
E3012/C2612
E3012/C2612
M2
M3
E3012/C3012
M2
500
E3012/C3012
M3
500
E3612/C3012
M2
500
E3612/C3012
M3
700
Cat 604-3
E3612/C3012
E3612/C3612
M4
M4
C e nt e r o f G ra v it y in. ( m m )
LB
LF
RB
RF
T o tal
X
Y
Z
2682
3380
3263
4113
13438
79.8
35.1
25.7
(1217)
(1533)
(1480)
(1866)
(6095)
(2028)
(891)
(652)
2652
3667
3472
4801
14592
82.5
36.6
24.3
(1203)
(1663)
(1575)
(2178)
(6619)
(2094)
(929)
(618)
2953
3769
3546
4527
14795
79.4
34.7
27.7
(1339)
(1710)
(1609)
(2053)
(6711)
(2016)
(881)
(703)
2948
4031
3789
5182
15950
81.8
36.4
26.6
(1337)
(1829)
(1719)
(2350)
(7235)
(2078)
(924)
(676)
3537
4314
4149
5060
17060
80.7
38.1
29.9
(1604)
(1957)
(1882)
(2295)
(7738)
(2050)
(969)
(760)
3519
4591
4385
5721
18216
80.7
38.1
29.9
(1596)
(2082)
(1989)
(2595)
(8263)
(2050)
(969)
(760)
3635
4598
4543
5746
18522
80.8
39.4
30.5
(1649)
(2086)
(2061)
(2606)
(8401)
(2052)
(1000)
(774)
4102
5370
4995
6539
21006
79.9
40.2
32.5
(2436)
(2266)
(2966)
(9528)
(2028)
(1022)
(825)
(1861)
M o unt ing ( O pe ra t ing) We ight , lbs ( k g)
M o t o r C o de
500
700
Lif t ing ( S hipping) We ight , lbs ( k g)
M o t o r C o de
C e nt e r o f G ra v it y in. ( m m )
LB
LF
RB
RF
T o tal
X
Y
Z
3263
3896
3902
4660
15721
79.2
34.8
26.4
(1480)
(1767)
(1770)
(2114)
(7131)
(2012)
(883)
(671)
3228
4189
4117
5343
16877
81.5
36.1
25.2
(1464)
(1900)
(1867)
(2424)
(7655)
(2071)
(916)
(641)
3612
4446
4272
5257
17587
78.8
34.2
28.2
(1638)
(2017)
(1938)
(2385)
(7977)
(2001)
(868)
(717)
3604
4712
4518
5908
18742
80.9
35.6
27.3
(1635)
(2137)
(2049)
(2680)
(8501)
(2055)
(905)
(693)
4437
5077
5132
5872
20518
78.0
36.7
32.2
(2013)
(2303)
(2328)
(2663)
(9307)
(1981)
(933)
(817)
4412
5359
5374
6527
21672
79.9
37.9
31.2
(2001)
(2431)
(2438)
(2961)
(9830)
(2028)
(962)
(791)
4529
5366
5532
6553
21980
80.0
38.9
31.6
(2054)
(2434)
(2509)
(2972)
(9970)
(2031)
(989)
(802)
5150
6461
6130
7691
25432
79.0
39.7
33.3
(2336)
(2931)
(2781)
(3489)
(11536)
(2007)
(1008)
(845)
27
Physical Data & Weights
Figure 22: Lifting Points - See Installation Manual IM 1033 for handling information.
Lifting Po int (Ou tside
Co rner Hid den)
Power Cable Entry
Note: This drawing is for general reference only.
VFD Power
Panel
Lifti ng P oint
Refer to dimension drawings for location of components.
Li fting Points
Physical Data - Evaporator
Refrigerant-side maximum working pressure is 200psig.
Water-side is 150 psi (1034 kPa) with 300 psi (2068 kPa)
available as an option. Approximate total square footage of
insulation surface required for individual packaged chillers is
tabulated by evaporator code and can be found below. The
suction elbow and compressor also require insulation. Factoryinstalled insulation on cold surfaces, ¾ or 1 ½ inch thick is an
available option.
Table 11: Evaporator Physical Data
WME Model
Evaporator
Model
Tube
Length
Evaporator Water
Volume, gal (L)
Insulation Area
sq. ft. (m2)
Number of Relief
Valves
0500
E3012
12 ft.
147 (555)
115 (11)
1
0500
E3612
12 ft.
191 (723)
129 (12)
1
0700
E3612
12 ft.
214 (809)
129 (12)
1
Note: Refrigerant charge will depend on a number of variables. Actual charge will be shown on the unit nameplate.
Note: Water capacity is based on standard tube configuration and standard dished heads, and may change depending on your configuration.
Consult Certified Drawing.
Physical Data - 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 spring-loaded pressure relief
valves. When an over-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; Water-side
design is 150 psi with 300 psi available as an option. .
Table 12: Condenser Physical Data
WMC Model
Condenser
Model
Tube
Length
Maximum Pumpdown
Capacity lb. (kg)
Water Volume
gal. (L)
Number of
Relief Valves
0500
C2612
12 ft.
1656 (751)
111 (419)
2
0500
C3012
12 ft.
2148 (975)
144 (545)
2
0700
C3012
12 ft.
2060 (934)
214 (808)
2
0700
C3612
12 ft.
2814 (1276)
337 (1276)
2
Note: Condenser pumpdown capacity based on 90% full at 90F.
Note: Water capacity based on standard configuration and standard heads, and may change depending on your configuration. Consult Certified
Drawing.
Note: See Relief Valves section of IM 1033 (available on www.daikinmcquay.com) for additional information.
28
Cat 604-3
T
Cat 604-3
= High Pressure Switch
= Temperature Sensor
= Pressure Sensor
= Reference number
T
P
1
1
Strainer
HPS
6 Phase
configuration
shown.
3 Phase version
will have 1 heat
sink and 1
refrigerant circuit
2
Condenser
Liquid
Line
T
Manual Shut Off Valve
P
Controlled By Chiller
Controller
Electronic
Expansion
Valve
6
HPS
T
P
Discharge
Check
Valve
Compressor
P
Suction
T
Rotor Liquid Injection
Motor Stator Cooling
Liquid Injection
3
Orifice
Strainer
Controlled By
Compressor Controller
Solenoid Valve
Motor
T
4
Filter Dryer
Solenoid Valve
Controlled By
Compressor Controller
Strainer
T
Stepper
Motor
Valve
REV 2
Feb20, 2008
5
Controlled By
Compressor Controller
Rotor Cooling
T
VFD
controller
Evaporator
Refrigeration Diagram
Refrigeration Diagram
Figure 23: Refrigeration Diagram
29
Application Considerations
Location Requirements
Application Considerations
Daikin McQuay Magnitude units are designed only for indoor,
weather-protected, non-freezing 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 consumes more energy
than any other component in the chiller system. Therefore, the
optimum plant design must take into account all of the
interactions between chiller, pumps, and tower.
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°C) leaving water instead of 42°F
(5.5°C) will significantly reduce chiller energy consumption.
Evaporator Temperature Drop
The industry standard has been a 10°F (5.5°C) temperature
drop in the evaporator. Increasing the drop to 12°F or 14°F
(6.6°C or 7.7°C)will improve the evaporator heat transfer,
raise the suction pressure, and improve chiller efficiency.
Chilled water pump energy will also be reduced.
Reduced Evaporator Fluid Flow
Several popular chiller plant control practices including
Variable Primary Flow systems advocate reducing the
evaporator fluid flow rate as the chiller capacity is reduced.
This practice can significantly reduce the evaporator pumping
power while having little effect on chiller energy consumption.
The Magnitude chiller can operate effectively in variable
evaporator flow systems as long as the minimum and
maximum tube velocities are taken into consideration when
selecting the chiller. See section Variable Fluid Flow Rates and
Tube Velocities‚ page 32.
If it is decided to vary the evaporator water flow rate the rate
of change should not exceed 50% per minute and should not
exceed the minimum or maximum velocity limits.
Condenser Entering Water Temperature
As a general rule, a 1°F (0.5°C) 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
30
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 9.5°F (5.3°C)
delta-T seems to work well for most applications.
Reduced Condenser Fluid Flow
Several popular chiller plant control practices also advocate
reducing the condenser fluid flow rate as the chiller load is
reduced. This practice can significantly reduce the condenser
pumping power, but it may also have the unintended
consequence of significantly increasing compressor power
since the leaving condenser water temperature is directly
related to compressor lift and power. The higher compressor
power will typically be larger than the condenser pumping
power reduction and will result in a net increase in chiller plant
energy consumption. Therefore, before this strategy is applied
for energy saving purposes it should be extensively modeled or
used in an adaptive chiller plant control system which will take
into account all of the interdependent variables affecting
chiller plant energy. If it is decided to use variable condenser
fluid flow, the Magnitude chiller can operate effectively as
long as the minimum and maximum tube velocities are taken
into consideration when selecting the chiller.
Chilled Water Temperature
The maximum temperature of water entering the chiller on
standby must not exceed 105°F (46.1°C). Maximum
temperature entering on start-up must not exceed 90°F (32°C).
Minimum chilled water leaving temperature without antifreeze
is approximately 38°F (3.3°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 for job conditions. Install a cleanable
20-mesh water strainer upstream of the evaporator and
condenser. Install enough shutoff valves to permit draining
water from the evaporator or condenser without draining the
complete system.
Note: This product is equipped with a shell and tube
evaporator with carbon steel shell and copper tubes. The water
or other fluid used in these evaporators must be clean and noncorrosive to the materials used in the evaporator. Noncompatible fluids can void the equipment warranty. If the
compatibility of the fluid with the evaporator is in question, a
professional water quality consultant should administer the
proper testing and evaluate compatibility.
Cat 604-3
Application Considerations
Condenser Water Temperature
When the ambient wet bulb temperature is lower than design,
the entering condenser water temperature of Magnitude WME
chillers can be lowered to improve chiller performance.
Chillers can start with entering condenser water temperatures
as low as 40°F (4.4°C). For short periods of time during
startup, the entering condenser water temperature can even be
lower than the leaving chilled water temperature.
Magnitude WME chillers are equipped with electronic
expansion valves (EXV) and will run with entering condenser
water temperatures as low as shown in Figure 24 or as
calculated from the following equation on which the curves are
based:
Even with tower fan control, some form of water flow control,
such as tower bypass, is recommended.
Figure 25 and Figure 26 illustrate two temperature-actuated
tower bypass arrangements. The “Cold Weather” scheme,
Figure 26, 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.
Figure 25: Tower Bypass: Mild Weather Operation
Min. ECWT = 5.25+(LWT)-0.75*DTFL*(PLD/100)+14 *(PLD/100)2
Where:
ECWT = Entering condenser water temperature
LWT = Leaving chilled water temperature
DTFL = Chilled Water Delta-T at full load
PLD = The percent chiller load point to be checked
Figure 24: WME Minimum Entering Condenser Water
Temperature (EXV) (10°F Range at Full Load)
65
Figure 26: Tower Bypass: Cold Weather Operation (Bypass
Indoors)
46°F LChWT
E C W T ( °F)
44°F LChWT
60
42°F LChWT
55
50
45
40
35
30
0
10
20
30
40
50
60
70
80
90
100
P er cent Loa d
For example; at 44°F LWT, 10°F Delta-T at full load, and 50%
full load operation, the entering condenser water temperature
could be as low as 49°F. This provides excellent operation
with water-side economizer systems.
Depending on local climatic conditions, using the lowest
possible entering condenser water temperature may be more
costly in total system power consumed than the expected
savings in chiller power would suggest, due to the excessive
fan power required.
In this scenario, cooling tower fans would continue to operate
at 100% capacity at low wet bulb temperatures. The trade-off
between better chiller efficiency and fan power should be
analyzed for best overall system efficiency. The Energy
Analyzer program (available from your Daikin McQuay Sales
Representative) can optimize the chiller/tower operation for
specific buildings in specific locales.
Cat 604-3
Condenser water temperature control
The standard MicroTech controller is capable of three stages of
tower fan control plus an analog control of either a three-way
tower-bypass valve or variable speed tower-fan motor. Stages
are controlled from condenser-water temperature. The threeway 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.
Pumps
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.
31
Application Considerations
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.
Variable Fluid Flow Rates and Tube Velocities
Many chiller system control and energy optimization strategies
require significant changes in evaporator and condenser water
flow rates. The Magnitude chiller line is particularly well
suited to take full advantage of these energy saving
opportunities provided that the maximum and minimum fluid
flow rates are taken into consideration for a specific
application. The sales engineer has the flexibility to use
different combinations of shell size, number of tubes, and pass
arrangements to select the optimum chiller for each specific
application.
Both excessively high and excessively low fluid flow rates
should be avoided. Excessively high fluid flow rates and
correspondingly high tube velocities will result in high fluid
pressure drops, high pumping power, and potentially tube
corrosion and/or tube corrosion damage. Excessively low fluid
flow rates and correspondingly low velocities should also be
avoided as they will result in poor heat transfer, high
compressor power, sedimentation and tube fouling.
Excessively high and low tube velocities can be particularly
problematic and damaging in open loop systems.
Rates of Fluid Flow Change
If it is decided to vary the evaporator water flow rate the rate
of change should not exceed 50% per minute and should not
exceed the minimum or maximum velocity limits as
determined by the McQuay chiller software program.
Vibration Mounting
Daikin McQuay 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.
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 during the low load period and the
desired cycle time for the compressors.
32
Assuming that there are no sudden load changes and that 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.
System Analysis
Although we recommend 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 McQuay Energy Analyzer program is an excellent
tool to investigate the entire system efficiency, quickly and
accurately. It is especially good at comparing different system
types and operating parameters. Contact your local Daikin
McQuay sales office for assistance on your particular
application.
Retrofit Knockdown
It is estimated that fifty percent of retrofit applications require
partial or complete disassembly of the chiller. Magnitude
chillers are relatively easy to disassemble due to the small
compressor size, simplified refrigerant piping and the absence
of a lubrication system with its attendant components and
piping. Three knockdown arrangements are available as
options. For detailed knockdown dimensions and installation,
see IM Knockdown, available at www.daikinmcquay.com.
Contact your local McQuay Factory Service for price
quotation and installation scheduling.
TYPE I provides a moderate amount of disassembly. The
compressor, suction and discharge piping, and compressor
VFD power panel are removed and put on a skid. The
touchscreen and mounting arm will ship in a separate
container. All associated wiring and piping will remain
attached if possible. The remaining loose parts will be
packaged in a separate crate.
TYPE II provides a total knockdown of the unit. The
compressor and VFD power panel are removed and put on a
skid. The touchscreen and mounting arm will ship in a separate
container. The condenser, evaporator, and tube sheet supports
will remain connected only by the attachment bolts for easy
disassembly at the job site. All wiring and piping that
interconnects the components will be removed. The remaining
loose parts will be packaged in a separate crate.
Type III units are shipped fully assembled, factory charged,
run-tested, insulated and painted; ready for disassembly at the
job site. Included are the vessel bolt-on connection brackets,
discharge line bolt-on flanges at the condenser. Touch-up paint
and stick-on wire ties will be included. Site disassembly and
reassembly must be supervised by McQuay startup personnel.
Cat 604-3
Options and Accessories
Unit Options
Single insulation - evaporator shell / heads / suction piping
Export packaging
0.75-inch insulation on cold surfaces. Insulation, either
optional factory-installed or field-installed is required on all
installations.
Options and Accessories
Can be either open or closed crate and with optional shipping
bag. A wooden skid and a shrink-wrapped bag covering the
entire unit and protecting it from possible dirt and grime
accumulation during transit are standard.
Pumpout Unit, with or without storage vessel
Available in a variety of sizes, single-phase or three-phase,
with and without tanks. Contact your Daikin McQuay sales
office for details.
Extended warranties
Extended 1, 2, 3, or 4 year warranties for parts only or for parts
and labor are available for the compressor/motor only, the
entire unit, or the entire unit including refrigerant.
Spring vibration Isolators
Spring isolators for use in special situations requiring
extremely low vibration and sound levels.
Witness performance test
The specified full and/or part load tests, as ordered, are
performed in the presence of the customer under the
supervision of a factory engineer and include compilation of
the test data onto an easy-to-read spreadsheet. Tests are run to
AHRI tolerances of capacity and power. Travel and local
expenses are not included.
Certified performance test
The specified full and/or part load run tests, as ordered, are
performed under the supervision of a factorry engineer; data is
compiled, certified and transmitted to the customer. Tests are
run to AHRI tolerances of capacity and power
Refrigerant charge
Holding charge of Nitrogen or R-134a. Shipping with a full
charge of R-134a is standard.
Knockdown shipment
Several options for a knockdown shipment to facilitate unit
placement. See page 32 for details.
Vessel Options
Marine water boxes
Double insulation - evaporator shell / heads / suction piping
1.5-inch insulation on cold surfaces (0.75-inch on suction
piping) for low fluid temperatures and/or high humidity .
Tube size, wall thickness and material
A wide range of tube options are available to accommodate
most flow rates and fluids. Standard wall thickness is 0.025 in.,
optional 0.028 in. or 0.035 in.
Controls Options
BAS interface module
Factory-installed on the unit controller for the applicable
protocol being used (Can also be retrofit):
• BACnet MS/TP
• BACnet IP
• BACnet Ethernet
• LonWorks
• Modbus RTU
Electrical Options
High short circuit current rating
35kA, 65 kA and 100kA (at 460V) panel rating available with
a matching circuit breaker.
Low Harmonic VFD Option
The Low THD option (M3) model VFD has been tested to meet
SEMI F47-0706 standard for voltage sag immunity. This is a
standard from the semi-conductor industry that specifies
various scenarios regarding voltage sag intensity (percent of
voltage remaining during sag) and duration (in cycles or
seconds). The chiller will remain on-line during a voltage sag
that meets the criteria in this testing protocol.
EMI filter
Factory-installed option. Radio interference filter.
Ground fault protection
Provides tube access for inspection, cleaning, and removal
without dismantling water piping.
Protects equipment from arcing ground fault damage from
line-to-ground fault currents less than those required for
conductor protection.
Flanges (Victaulic connections are standard)
Input power meter
ANSI raised face flanges on either the evaporator 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.
Epoxy coating
Evaporator and condenser tube sheets,heads and marine boxes
can be epoxy coated for corrossion protection.
Cat 604-3
Allows display of phase amps and volts on the operator
interface screen.
Special Order Options
The following special order options are available; requiring
factory pricing, additional engineering and possible dimension
changes or extended delivery:
Special Order Options:
1 Non-standard location of nozzle connections on heads
(compact water boxes) or marine water boxes
33
Options and Accessories
2 Special corrosion inhibiting coatings on any "wetted
surface" including tubesheets, heads (compact water
boxes), marine water boxes, or nozzles
3 Clad tube sheets
4 Sacrificial anodes in heads (compact water boxes) or
marine water boxes
5 Eddy current testing and report used to verify baseline
tube condition
6 Special NEMA enclosures
7 Davits or hinges for marine water box covers or heads
(compact water boxes)
9 Spacer rings on heads to accommodate automatic tube
10 Brush cleaning systems (installed by others)
11 Field Mounted Harmonic Filter, WME 500, Free-
standing, passive harmonic filter Model AUHF for 460
volt service and Model ATL, which includes an
autotransformer for 600 volts.
12 Factory-Mounted Harmonic Filter, WME 500, mounted
and wired, passive harmonic filter for 460V duty.
13 Refrigerant monitor, for remote mounting including
accessories such as 4-20ma signal, strobe light, audible
horn, air pick-up filter.
8 Accelerometer and vibration monitoring pickup
mounting )
34
Cat 604-3
Engineering Guide Specifications
Engineering Guide 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.
C The chiller shall be tested to job conditions on an AHRI
qualified test stand at the manufacturer's plant.
1.5 DELIVERY AND HANDLING
A Chillers shall be delivered to the job site completely
assembled and charged with refrigerant R-134a and be
shipped on skids with a weather resistant cover.
-- OR -A (Type I Knockdown, WME only) The compressor, suction
and discharge piping, VFD power panel and touchscreen
shall be removed and shipped separately. All wiring and
piping shall remain attached where possible. The remaining
loose parts shall be packaged in a separate crate. The unit is
Cat 604-3
to be run-tested at the factory and shipped with a helium
holding charge, evaporator insulated and a kit for
compressor insulation. Contractor shall leak test, evacuate
and charge with refrigerant after reassembly.
--OR-A (Type II Knockdown, WME only) The compressor, VFD
power panel, wiring and interconnecting piping shall be
removed and shipped separately. The unit shall be runtested at the factory. The compressor and vessels shall ship
with a helium holding charge, the evaporator insulated and
a kit for compressor insulation included. Contractor shall
leak test, evacuate and charge with refrigerant after
reassembly.
--OR-A (Type III Knockdown, WME only) The units shall be
shipped fully assembled, factory charged, run-tested,
insulated and painted; ready for disassembly at the job site.
The unit shall have vessel bolt-on connection brackets,
discharge line bolt-on flanges at the condenser, touch-up
paint and stick-on wire ties. Site disassembly and
reassembly must be factory supervised. Contractor shall
leak test, evacuate and charge with refrigerant after
reassembly.
--OR-A (Type IV Knockdown WMC only) The compressor and
VFD power panel 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 with a holding
charge of helium. Contractor shall leak test, evacuate and
charge with refrigerant after reassembly
-- OR -A (Type V Knockdown, WMC only) 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. Contractor shall leak test, evacuate and charge
with refrigerant after reassembly
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 for a period of one year from
equipment startup or 18 months from shipment, whichever
occurs first.
-- OR -A The chiller manufacturer's warranty shall cover parts and
labor costs for the repair or replacement of defects in
material or workmanship, and include refrigerant for the
35
Engineering Guide Specifications
entire unit, for a period of one year from equipment startup
or 18 months from shipment, whichever occurs first. OR,
B The chiller manufacturer's warranty shall cover parts and
labor costs for the repair or replacement of defects in
material or workmanship, and include refrigerant for the
entire unit, for a period of one year from equipment startup
or 18 months from shipment, whichever occurs first, 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).
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 McQuay Magnitude 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, charged, and run-tested water-cooled packaged
centrifugal chiller. Chillers shall have no more than two oilfree, 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 two-compressor 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.
Each chiller shall be factory run-tested on an AHRI qualified test stand with water at job conditions (excluding glycol applications). 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
36
power supply. Any deviation in performance or operation
shall be remedied prior to shipment and the init retested if
necessary to confirm repairs or adjustments.
2.3 DESIGN REQUIREMENTS
A 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 charged with refrigerant HFC134a. If manufacturer offers a chiller using any HCFC
refrigerant, manufacturer shall provide, in writing,
documentation signed by an officer of the company
assuring refrigerant availability and price schedule for a 20year period.
B 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 A 20-year purge maintenance agreement that provides
parts, labor, and all preventative maintenance required
by the manufacturer’s operating and maintenance
instructions.
2 A complete purge system capable of removing non-
condensables and moisture during operation and shutdown.
3 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.
4 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.
C Performance: Refer to chiller performance rating.
D 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
Cat 604-3
Engineering Guide Specifications
include overall dBA. Data shall be the highest levels
recorded at all load points.
Octave Band
63
125
250
500
1000
2000
4000
8000
Overall
dBA
and stamped according to the requirements of the ASME
Code, Section VIII. The tubes shall be individually
replaceable and secured to the intermediate supports
without rolling.
2 The evaporator shall be flooded type with [0.025 in.] OR
2.4 CHILLER COMPONENTS
A Compressors:
1 The unit shall utilize magnetic bearing, oil-free, semi-
hermetic centrifugal compressors. The compressor drive
train shall be capable of coming to a controlled, safe stop
in the event of a power failure.
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.
a If the compressor design requires a shaft seal to
contain the refrigerant, the manufacturer shall supply
a 20 year parts and labor warranty on the shaft seal
and a lifetime refrigerant replacement warranty if a
seal failure leads to refrigerant loss, or the chiller
manufacturer shall assume all costs to supply and
install 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 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, shall
provide unloading. The chiller controls shall coordinate
compressor speed and guide vane position to optimize
chiller efficiency.
4 Each compressor circuit shall be equipped with a line
reactor to help protect against incoming power surges
and help reduce harmonic distortion.
5 [OPTION} WME 500, each compressor shall be
equipped with a factory-mounted and wired 460Vpassive
harmonic filter. It shalll be guaranteed to meet the IEEE
Standard 519 for harmonic levels for this application.,
[OPTION} WME 500, each compressor shall be
supplied with a 460V/575V passive harmonic filter for
field-mounting and wiring . It shalll be guaranteed to
meet the IEEE Standard 519 for Isc/IL harmonic levels
for this application
6 Evaporator and Condenser:
1 The evaporator and condenser shall be separate vessels
of the shell-and-tube type, designed, constructed, tested
Cat 604-3
[0.028 in.] OR [0.035 in.] wall, copper tubes rolled into
carbon steel tubesheets. The water side shall be designed
for a minimum of [150 psi] OR [250 psi] OR [350 psi].
The evaporator shall have [dished heads] OR [ marine
water boxes with removable covers] and shall be [carbon
steel] OR [epoxy-coated steel]]. Water connections shall
be [grooved suitable for Victaulic couplings] OR
[flanged connections]. The evaporator shall have [righthand] OR [left-hand] connections when looking at the
unit control panel.
3 The condenser shall have [0.025 in.] OR [0.028 in.] OR
[0.035 in.] wall copper 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 psi] OR [250 psi] OR
[350 psi]. The condenser shall have [dished heads with
valved drain and vent connections] OR [marine water
boxes with removable covers and vent and drain
connections]. The condenser shall have [right-hand] OR
[left-hand] connections when looking at the unit control
panel.
4 Provide sufficient isolation valves and condenser volume
to hold the full unit refrigerant charge in the condenser
during servicing or provide a separate pumpout system
and storage tank sufficient to hold the charge of the
largest unit being furnished.
5 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.
6 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. Rupture disks are not acceptable.
7 The evaporator, [return water head] OR [return and
connection 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.
The discharge line shall be factory insulated.
8 Provide factory-mounted and wired, thermal-dispersion
water flow switches on each vessel to prevent unit
operation with no or low water flow.
37
Engineering Guide Specifications
B Vibrations
1 Provide neoprene waffle-type vibration isolators for each
corner of the unit.
C Unit shall be bagged and mounted on skids for shipment.
D Power Connections
• Power connection shall be single point to a factorymounted disconnect switch OR shall be multipoint to
each compressor power panel on two-compressor units.
E 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:
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
seven other similar chillers through a local network and
also provide 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 drive.
8 Optionally, 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)
• Entering and leaving chilled water temperatures
• BACnet IP, (Annex J)
• Entering and leaving condenser water temperatures
• BACnet ISO 8802-3, (Ethernet)
• Evaporator saturated refrigerant pressure
• Condenser saturated refrigerant pressure
• LonTalk® FTT-10A. The unit controller shall be LONMARK ® certified.
• Percent of 100% speed (per compressor)
9 The information communicated between the BAS and
• % 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
• Evaporator water in and out temperatures, refrigerant
pressure and temperature
• Condenser water in and out temperatures, refrigerant
pressure and temperature
• 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. 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.
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.
2.5. OPTIONAL ITEMS
A The following optional items shall be furnished:
1 [Open crate] OR [Open crate with bag] OR [totally
enclosed export crate] OR [totally enclosed export crate
with bag]
2 Pumpout unit, with or without storage vessel
3 Refrigerant monitor
4 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 r neoprene pads.
5 OSHPD Certification: The chiller shall be OSHPD Pre-
Approved per OSP-0116-10 and be so labeled. The
38
Cat 604-3
Engineering Guide Specifications
chiller shall meet a minimum seismic design spectral
response acceleration of 1.60 SDS. The chiller must be
mounted to a rigid base and may use neoprene waffle
vibration pads.
6 Certified performance test in accordance with procedures
and to the tolerances contained in AHRI Standard 550/
590.
-- OR -6 Witness performance test in accordance with procedures
and to the tolerances contained in AHRI Standard 550/
590.
PART 3 - EXECUTION
3.1 INSTALLATION
A installing contractor to:
1 Install per manufacturer's requirements, shop drawings,
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.
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.
and contract documents.
Cat 604-3
39
Engineering Guide Specifications
40
Cat 604-3
McQuay Training and Development
Now that you have made an investment in modern, efficient Daikin McQuay equipment, its care should be a high
priority. For training information on all Daikin McQuay HVAC products, please visit www.daikinmcquay.com and
click on training, or call 540-248-9646 to speak with the Training Department.
Warranty
All Daikin McQuay equipment is sold pursuant to its standard terms and conditions of sale, including Limited
Product Warranty. Consult your local Daikin McQuay Representative for warranty details. Refer to Form 93343285Y. To find your local Daikin McQuay Representative, go to www.daikinmcquay.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.daikinmcquay.com.
© 2012 McQuay International • www.daikinmcquay.com • 800-432-1342
07/12
Was this manual useful for you? yes no
Thank you for your participation!

* Your assessment is very important for improving the work of artificial intelligence, which forms the content of this project

Download PDF

advertisement