Carrier AQUAFORCE 30XW150-400 Product data

Product
Data
AQUAFORCE®
30XW150-400
Water-Cooled Liquid Screw
Chillers
150 to 400 Nominal Tons
(528 to 1407 kW)
®
A30-4905
30XW150-300
Carrier's AquaForce 30XW chillers
provide a great combination of performance and compact footprint for
cooling and heat recovery applications. These chillers provide excellent
reliability and efficiency at true operating conditions without compromising
the environment.
• Chlorine-free R-134a HFC
refrigerant
• Positive displacement, twin screw
compressors
• AHRI (Air Conditioning, Heating,
and Refrigeration Institute) certified
efficiencies to 0.468 kW per ton
IPLV (integrated part load value)
• Dual independent refrigerant
circuits (sizes 325-400)
• Compact footprint, less than 48 in.
(1219 mm) wide
• Easy to use controls
Features/Benefits
Quality design and
construction make the
AquaForce 30XW chillers an
excellent choice for modern,
efficient chilled water plants.
Small footprint
30XW325-400
The 30XW chillers feature a compact
footprint and are delivered as a single
complete package less than 48 in.
(1219 mm) wide for easy installation
and minimal indoor space. The 30XW
chiller footprints may be up to 30%
smaller when compared to other chillers and may require less mechanical
room floor space and smaller concrete
pads.
a30-4659.eps
Copyright 2010 Carrier Corporation
Form 30XW-3PD
Features/Benefits (cont)
Easy installation
The AquaForce® 30XW screw chillers
are shipped with starter and unit
mounted flow switch installed and can
be shipped with a full R-134a refrigerant charge to minimize installation
time. The unit provides single point
power connection (using optional control power transformer) and quick, easy
piping connections (using Victaulictype clamp on couplings). The 30XW
200-v, 230-v, 460-v, and 575-v units
are designed in accordance with UL
(Underwriters Laboratory) and UL
Canada standards to minimize electrical inspection time.
per ton at AHRI conditions while offering the ability to operate in a broad
range of applications and climates.
This exceptional performance has a
significant impact on energy savings
and cost of ownership.
Heat recovery
Dual independent refrigerant circuits
provide reliable, dependable cooling,
excellent part load operation, and
redundancy. Each circuit includes its
own compressor, electronic expansion
valve, filter drier, and sight glass to
assure operation.
The Aquaforce 30XW150-200 and
325-400 ton screw chillers provide up
to 140 F (60 C) leaving condenser
water (requires heat machine option)
when applied in heat recovery applications. Further, the 30XW unit heat
control mode can be utilized to maintain a constant leaving condenser
water temperature. Low source controls provide evaporator suction protection to prevent nuisance trips when
operating in heat recovery applications. This flexible capability allows a
chiller to meet both cooling and heating requirements providing a high level
of interchangeability within a chilled
water plant.
High efficiency
Environmental leadership
The Aquaforce 30XW screw chiller
efficiency levels meet or exceed energy
efficiency requirements of ASHRAE
(American Society of Heating, Ventilation and Air Conditioning Engineers)
90.1 2007 and CSA (Canadian Standards Association) for both full load and
part load operation. The chiller is certified to AHRI standards.
Per AHRI 550/590, chillers operate
at design conditions less than one percent of the time. As a result, superior
part load efficiency is required for
today's chilled water applications. The
30XW chillers deliver integrated partload values (IPLV) as low as 0.468 kW
Carrier has long been committed to the
environment and its sustainability. The
Aquaforce 30XW screw chiller provides customers with a high-efficiency,
chlorine free, long-term solution unaffected by refrigerant phase outs.
Carrier's decision to utilize non-ozone
depleting R-134a refrigerant provides
customers with a safe and environmentally sound choice without compromising efficiency. In addition, R-134a
refrigerant was given an A1 safety rating by ASHRAE, meaning that it is
among the safest refrigerants available.
Dual circuits (sizes 325-400)
Table of contents
Page
Features/Benefits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-4
Model Number Nomenclature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Capacity Ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Physical Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-10
Options and Accessories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11,12
Dimensions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13-22
Selection Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Performance Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24-33
Controls . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34,35
Typical Control Wiring Schematics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
Application Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37-39
Typical Piping and Wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40,41
Electrical Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42-45
Guide Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46-49
2
Positive displacement screw
compression
Positive displacement compression
ensures stable operation under all load
conditions without the possibility of
compressor surge. High-efficiency
rotary twin screw compressors with
infinitely variable slide valves allow the
chillers to exactly match actual load
conditions, delivering excellent part
load performance.
Factory testing
A quick start-up is assured once installation is complete, since each 30XW
unit is manufactured at an ISO (International Organization for Standardization) 9001:2000 listed manufacturing
facility to ensure quality. In addition, all
30XW units that are shipped with a full
charge of R-134a refrigerant are tested
under load at the factory to provide
reliable start-up.
Low starting current (inrush)
Dual circuit units (sizes 325-400) stage
the start-up of the compressors,
thereby reducing the over all current
draw by up to 40%.
Constant or variable evaporator flow
Aquaforce 30XW screw chillers are
suitable for constant or variable evaporator flow.
Semi-hermetic motor
The Aquaforce 30XW chiller utilizes
motors that are semi-hermetically
sealed from the machine room. Refrigerant is used to cool the motor
windings.
Carrier's semi-hermetic design
eliminates:
• Compressor shaft seals that require
maintenance and increase the likelihood of refrigerant leaks.
• Machine room cooling requirements
associated with air-cooled motors,
which dissipate heat to the mechanical room.
• High noise levels common with aircooled motors, which radiate noise
to the machine room and adjacent
areas.
• Shaft alignment problems that occur
with open-drive designs during startup and operation, when equipment
temperature variations cause thermal expansion.
Positive pressure design
Positive pressure designs eliminate the
need for costly low pressure
containment devices, reducing the
initial cost of the system. The
AquaForce® 30XW chiller's positive
pressure design ensures that air, moisture and other performance degrading
contaminants are not sucked inside the
chiller. Purge units and their associated
maintenance are no longer necessary.
Optional refrigerant isolation
valves
The optional refrigerant isolation
valves enable service personnel to store
the refrigerant charge in the evaporator or condenser during servicing. During servicing, the in-chiller storage
reduces refrigerant loss and eliminates
time-consuming transfer procedures.
As a self-contained unit, the AquaForce
30XW chiller does not require additional remote storage systems.
Optional suction service
valve(s)
The optional suction service valve(s)
allow for further isolation of the compressor from the evaporator vessel.
Marine container shipment
The compact design allows for container shipment to export destinations,
ensuring quality while reducing shipping cost.
Heat exchangers
The Aquaforce 30XW chillers utilize
mechanically cleanable shell and tube
evaporators and condensers available
with a complete line of waterbox
options to meet project specific
requirements. One, two, and three
pass arrangements are available to
meet a wide variety of flow conditions.
Nozzle in head and marine waterboxes
are available to meet 150 psig
(1034 kPa) and 300 psig (2068 kPa)
piping requirements.
Heat exchanger features include:
ASME certified construction — An
independent agency certifies the
design, manufacture, and testing of all
heat exchangers to American Society
of Mechanical Engineers (ASME) standards, ensuring heat exchanger safety,
reliability and long life. The ASME
U-stamp is applied to the refrigerant
side of the evaporator and condenser
and is applied to the water side of these
heat exchangers when 300 psig
(2068 kPa) marine waterboxes are
provided.
Electronic thermal-dispersion flow
switch — An electronic thermaldispersion flow switch switch is
included with the evaporator. The
switch is factory installed and tested
and contains no moving parts for high
reliability.
High performance tubing —
Carrier's AquaForce chillers utilize
advances in heat transfer technology
providing compact, high-efficiency
heat exchangers. Tubing with
advanced internally and externally
enhanced geometry improves chiller
performance by reducing overall resistance to heat transfer while reducing
fouling.
Evaporator tube expansion —
Evaporator tube expansion at center
support sheets prevents unwanted tube
movement and vibration, thereby
reducing the possibility of premature
tube failure. Tube wall thickness is
greater at the expansion location, support sheets, and end tube sheets, to
provide maximum strength and long
tube life.
Closely spaced intermediate support sheets — Support sheets prevent tube sagging and vibration,
thereby increasing heat exchanger life.
Refrigerant filter isolation
valves — These valves allow filter
replacement without pumping down
the chiller, reducing service time and
expense.
Microprocessor controls
The AquaForce 30XW screw chiller
controls communicate in easy to understand English, making it as easy as possible to monitor and control each
chiller while maintaining fluid temperatures. Controls are available with
French, Portuguese and Spanish as
standard configuration options. These
controls result in higher chiller reliability, simplified training and correspondingly lower operational and
maintenance costs.
Two user interface options are available, the Touch Pilot™ display and the
Navigator™ module.
The Touch Pilot display is an easy to
use touch screen display that provides
simple navigation for configuration and
control of the 30XW units.
Carrier's exclusive handheld Navigator display provides convenience and
powerful information in the palm of
your hand. The Navigator display helps
technicians to quickly diagnose problems and even prevent them from
occurring.
All 30XW units are ready to be used
with Carrier Comfort Network® (CCN)
devices.
Controls features include:
Automatic capacity override —
This function unloads the compressor
whenever key safety limits are
approached, increasing unit life.
Chilled liquid reset — Reset can be
accomplished manually or automatically from the building management
system. For a given capacity, reset
allows operation at reduced lift, saving
energy when warmer chilled liquid can
be used.
Demand limiting — This feature limits the power draw of the chiller during
peak loading conditions. When incorporated into the CCN building automation system, a red line command holds
chillers at their present capacity and
prevents any other chillers from starting. If a load shed signal is received, the
compressors are unloaded to avoid
demand charges whenever possible.
Ramp loading — Ramp loading
ensures smooth pulldown of liquid loop
temperature and prevents a rapid
increase in compressor power consumption during the pulldown period.
Automated controls test — The test
can be executed prior to start-up to
verify that the entire control system is
functioning properly.
365-day real time clock — This
feature allows the operator to program
a yearly schedule for each week, weekends, and holidays.
Occupancy schedules — Schedules
can be programmed into the controller
to ensure that the chiller operates
when cooling is required and remains
off when not needed by the tenants or
process.
3
Features/Benefits (cont)
Extensive service menu — Unauthorized access to the service menu can
be password-protected. Built-in diagnostic capabilities assist in troubleshooting and recommend proper
corrective action for pre-set alarms,
resulting in greater up time.
Alarm file — This file maintains the
last 50 time and date-stamped alarm
and alert messages in memory. This
function reduces troubleshooting time
and cost.
Configuration data backup —
Non-volatile memory provides protection during power failures and eliminates time consuming control
reconfiguration.
a30-4456
30-562
TOUCH PILOT™ DISPLAY
SMOOTH ROTARY COMPRESSOR
TWIN-SCREW DESIGN
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Run
Status
Serv
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Tem
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Pres
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Setp
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Inpu
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Outp
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Conf
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Time
Cloc
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ESC
Oper
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Mod
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Alarm
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Alarm
seismiclogo
Status
SEISMICOMPLIANT*
* Meets IBC 2006, ASCE-7-05, CBC 2007, and OSHPD seismic requirements.
ER
ACCESSORY SEISMIC PACKAGE
a30-3924
OPTIONAL NAVIGATOR™ DISPLAY
4
Model number nomenclature
30XW
–
325
6
–
30XW – AquaForce® Water-Cooled
Screw Chiller
Design Series
Unit Size (Nominal Tons) (kW)
150 – 150 (528)
250 – 250 (878)
175 – 175 (615)
275 – 275 (965)
200 – 200 (703)
300 – 300 (1055)
325 – 325 (1143)
350 – 350 (1231)
400 – 400 (1407)
Voltage
1 – 575-3-60
2 – 380-3-60
4 – 230-3-60
6 – 460-3-60
7 – 200-3-60
Condenser Options
- – 2 Pass, NIH, 150 psig (1034 kPa), Victaulic, Discharge Connections (Std)
0 – 2 Pass, NIH, 150 psig (1034 kPa), Victaulic, Suction Connections
1 – 2 Pass, NIH, 150 psig (1034 kPa), Flange, Discharge Connections
2 – 2 Pass, NIH, 150 psig (1034 kPa), Flange, Suction Connections
3 – 2 Pass, NIH, 300 psig (2068 kPa), Victaulic, Discharge Connections
4 – 2 Pass, NIH, 300 psig (2068 kPa), Victaulic, Suction Connections
5 – 2 Pass, NIH, 300 psig (2068 kPa), Flange, Discharge Connections
6 – 2 Pass, NIH, 300 psig (2068 kPa), Flange, Suction Connections
7 – 2 Pass, MWB, 150 psig (1034 kPa), Victaulic, Discharge Connections
8 – 2 Pass, MWB, 150 psig (1034 kPa), Victaulic, Suction Connections
9 – 2 Pass, MWB, 300 psig (2068 kPa), Victaulic, Discharge Connections
B – 2 Pass, MWB, 300 psig (2068 kPa), Victaulic, Suction Connections
C – 2 Pass, MWB, 150 psig (1034 kPa), Flange, Discharge Connections
D – 2 Pass, MWB, 150 psig (1034 kPa), Flange, Suction Connections
F – 2 Pass, MWB, 300 psig (2068 kPa), Flange, Discharge Connections
G – 2 Pass, MWB, 300 psig (2068 kPa), Flange, Suction Connections
H – 1 Pass, NIH, 150 psig (1034 kPa), Flange, Suction Leaving
J – 1 Pass, NIH, 300 psig (2068 kPa), Flange, Suction Leaving
K – 1 Pass, MWB, 150 psig (1034 kPa), Flange, Suction Leaving
L – 1 Pass, MWB, 300 psig (2068 kPa), Flange, Suction Leaving
Heat Machine
- – Std Condenser/Comfort Cooling (Std)
M – Heat Machine Condenser/Comfort Cooling
Evaporator Options
- – 2 Pass, NIH, 150 psig (1034 kPa), Victaulic, Discharge Connections (Std)
0 – 2 Pass, NIH, 150 psig (1034 kPa), Victaulic, Suction Connections
1 – 2 Pass, NIH, 150 psig (1034 kPa), Flange, Discharge Connections
2 – 2 Pass, NIH, 150 psig (1034 kPa), Flange, Suction Connections
3 – 2 Pass, NIH, 300 psig (2068 kPa), Victaulic, Discharge Connections
4 – 2 Pass, NIH, 300 psig (2068 kPa), Victaulic, Suction Connections
5 – 2 Pass, NIH, 300 psig (2068 kPa), Flange, Discharge Connections
6 – 2 Pass, NIH, 300 psig (2068 kPa), Flange, Suction Connections
7 – 2 Pass, MWB, 150 psig (1034 kPa), Victaulic, Discharge Connections
8 – 2 Pass, MWB, 150 psig (1034 kPa), Victaulic, Suction Connections
9 – 2 Pass, MWB, 300 psig (2068 kPa), Victaulic, Discharge Connections
B – 2 Pass, MWB, 300 psig (2068 kPa), Victaulic, Suction Connections
C – 2 Pass, MWB, 150 psig (1034 kPa), Flange, Discharge Connections
D – 2 Pass, MWB, 150 psig (1034 kPa), Flange, Suction Connections
F – 2 Pass, MWB, 300 psig (2068 kPa), Flange, Discharge Connections
G – 2 Pass, MWB, 300 psig (2068 kPa), Flange, Suction Connections
H – 1 Pass, NIH, 150 psig (1034 kPa), Flange, Suction Leaving
J – 1 Pass, NIH, 300 psig (2068 kPa), Flange, Suction Leaving
K – 1 Pass, MWB, 150 psig (1034 kPa), Flange, Suction Leaving
L – 1 Pass, MWB, 300 psig (2068 kPa), Flange, Suction Leaving
M – 3 Pass, NIH, 150 psig (1034 kPa), Flange, Suction Leaving
P – 3 Pass, NIH, 300 psig (2068 kPa), Flange, Suction Leaving
R – 3 Pass, MWB, 150 psig (1034 kPa), Flange, Suction Leaving
T – 3 Pass, MWB, 300 psig (2068 kPa), Flange, Suction Leaving
a30-5095
CPT
EMM
GFCI
LON
—
—
—
—
LEGEND
Control Power Transformer
MWB — Marine Waterbox
Energy Management Module
NIH — Nozzle-In-Head
Ground Fault Circuit Interrupter
XL
— Across-the-Line Start
Local Operating Network
*Evaporator insulation is standard.
†Available on unit sizes 325-400 only.
**Sponsored by ASHRAE (American Society of Heating, Refrigerating and
Air Conditioning Engineers).
Quality Assurance
Certified to ISO 9001:2000
–
–
2
–
3
R
Packaging/Charging Options
B – R-134a Refrigerant with Bag and Isolation Valves
C – R-134a Refrigerant with Crate Over Bag and Isolation Valves
D – Nitrogen Refrigerant with Bag and Isolation Valves
F – Nitrogen Refrigerant with Crate Over Bag and Isolation Valves
R – R-134a Refrigerant with Bag (Std)
S – R-134a Refrigerant with Crate Over Bag
T – Nitrogen Refrigerant with Bag
V – Nitrogen Refrigerant with Crate Over Bag
Controls/Communications Options
- – Navigator™ Display
0 – Navigator Display, EMM
1 – Navigator Display, GFCI Service Option
2 – Navigator Display, EMM, GFCI Service Option
3 – Touch Pilot™ Display (Std)
4 – Touch Pilot, EMM
5 – Touch Pilot, GFCI Service Option
6 – Touch Pilot, EMM, GFCI Service Option
7 – Navigator Display, BACnet** Translator
8 – Navigator Display, EMM, BACnet Translator
9 – Navigator Display, GFCI Service Option,
BACnet Translator
B – Navigator Display, EMM, GFCI Service Option,
BACnet Translator
C – Touch Pilot Display (Std), BACnet Translator
D – Touch Pilot Display, EMM, BACnet Translator
F – Touch Pilot Display, GFCI Service Option,
BACnet Translator
G – Touch Pilot Display, EMM, GFCI Service Option,
BACnet Translator
H – Navigator Display, LON Translator
J – Navigator Display, EMM, LON Translator
K – Navigator Display, GFCI Service Option,
LON Translator
L – Navigator Display, EMM, GFCI Service Option,
LON Translator
M – Touch Pilot Display, LON Translator
N – Touch Pilot Display, EMM, LON Translator
P – Touch Pilot Display, GFCI Service Option,
LON Translator
Q – Touch Pilot Display, EMM, GFCI Service
Option, LON Translator
Electrical Options
- – Single Point, XL Starter, Terminal Block
(Std 380, 460, 575-v)
0 – Single Point, Wye-Delta Starter, Terminal
Block (Std 200,230-v)
3 – Dual Point, XL Starter, Terminal Block†
4 – Dual Point, Wye-Delta Starter, Terminal Block†
7 – Single Point, XL Starter, Non-Fused Disconnect
8 – Single Point, Wye-Delta, Non-Fused Disconnect
C – Dual Point, XL Starter, Non-Fused Disconnect†
D – Dual Point, Wye-Delta Starter, Non-Fused
Disconnect†
H – Single Point, XL Starter, Terminal Block, CPT
J – Single Point, Wye-Delta Starter, Terminal
Block, CPT
M – Dual Point, XL Starter, Terminal Block, CPT†
N – Dual Point, Wye-Delta Starter, Terminal
Block, CPT†
R – Single Point, XL Starter, Non-Fused
Disconnect, CPT
S – Single Point, Wye-Delta, Non-Fused
Disconnect, CPT
W – Dual Point, XL Starter, Non-Fused
Disconnect, CPT†
X – Dual Point, Wye-Delta Starter, Non-Fused
Disconnect, CPT†
Refrigeration Circuit Options*
2 – Standard Unit
4 – Insulation Package
5 – Suction Service Valves
6 – Insulation Package and Suction Service Valves
B – Minimum Load Control
D – Minimum Load Control and Insulation Package
F – Suction Service Valves and Minimum Load Control
G – Suction Service Valves and Minimum Load Control
and Insulation Package
L – Condenser Insulation for Heat Machine
N – Condenser Insulation for Heat Machine and Insulation Package
P – Suction Service Valves and Condenser
Insulation for Heat Machine
Q – Suction Service Valves, Condenser Insulation
for Heat Machine and Insulation Package
V – Minimum Load Control and Condenser
Insulation for Heat Machine
X – Minimum Load Control, Condenser Insulation
for Heat Machine and Insulation Package
Y – Suction Service Valves, Minimum Load
Control and Condenser Insulation for Heat Machine
Z – Suction Service Valves, Minimum Load Control, Condenser
Insulation for Heat Machine and Insulation Package
5
Capacity ratings
30XW
UNIT SIZE
150
175
200
250
275
300
325
350
400
CAPACITY
Tons
160.0
170.1
191.1
241.1
262.8
285.5
322.2
343.0
385.0
Output
(kW)
562.7
598.2
672.1
847.9
924.3
1004.1
1133.0
1206.3
1354.0
INPUT
POWER
(kW)
105.0
110.5
123.9
151.9
168.2
184.3
204.7
216.8
242.8
EVAPORATOR
FLOW
gpm
L/s
384
408
459
579
631
685
773
823
924
24.2
25.8
28.9
36.5
39.8
43.2
48.8
51.9
58.3
EVAPORATOR
PRESSURE DROP
Ft of
kPa
Water
11.1
33.2
12.4
37.1
15.4
46.0
13.9
41.5
16.3
48.7
18.9
56.5
15.6
46.6
17.4
52.0
21.5
64.3
LEGEND
AHRI — Air Conditioning, Heating and Refrigeration Institute
IPLV — Integrated Part Load Value
NOTES:
1. Certified (60 Hz unit) in accordance with AHRI Standard 550/590
at standard rating conditions.
2. Standard rating conditions are as follows:
Evaporator Conditions:
Leaving Water Temperature: 44 F (6.7 C)
Flow:
2.4 gpm per ton (0.043 L/s per kW)
Condenser Conditions:
Entering Water Temperature:85 F (29.4 C)
Flow:
3.0 gpm per ton (0.054 L/s per kW)
6
CONDENSER
FLOW
gpm
L/s
480
510
573
723
788
857
966
1029
1155
30.3
32.2
36.2
45.6
49.7
54.0
61.0
64.9
72.9
CONDENSER
PRESSURE DROP FULL LOAD
IPLV
EFFICIENCY
Ft of
(kW/Ton) (kW/Ton)
kPa
Water
14.1
42.1
0.656
0.551
15.8
47.2
0.650
0.550
19.5
58.3
0.648
0.556
14.9
44.5
0.630
0.526
17.4
52.0
0.640
0.534
20.3
60.7
0.646
0.539
10.9
32.6
0.636
0.468
12.3
36.8
0.632
0.470
15.2
45.4
0.631
0.475
Fouling Factor (Evaporator):
0.00010 hr x sq ft x F per Btuh (0.000018 m2 x K per W)
Fouling Factor (Condenser):
0.00025 hr x sq ft x F per Btuh (0.000044 m2 x K per W)
3. IPLV is a single number part load efficiency value calculated from
the system full load efficiency values and corrected for a typical
building air-conditioning application.
4. All data in this table is rated (60 Hz only) in accordance with AHRI
Standard 550/590 as represented in the Packaged Chiller Builder
Selection Program (E-Cat) version 3.29.
5. Contact Carrier for custom ratings.
Physical data
30XW150-400 UNIT PHYSICAL DATA — ENGLISH
30XW UNIT SIZE
NOMINAL CAPACITY (tons)
UNIT WEIGHT (lb) (Operating/Shipping)
COMPRESSORS
Compressor Speed (rpm)
Compressor Model Number (qty)
Unloading Type
Minimum Step Capacity % (standard)
Optional %
Economizer
Temperature Relief Valve Connection
(in. SAE Flare) (2 per circuit)
REFRIGERANT
Charge (lb) Circuit A
Charge (lb) Circuit B
OIL
Charge (gal.) Circuit A
Charge (gal.) Circuit B
EVAPORATOR
Net Fluid Volume (gal.)
Maximum Refrigerant Pressure (psig)
Maximum Fluid Side Pressure (psig)
Standard
Optional
Fluid Connections
Inlet and Outlet (in.)
1-Pass NIH or MWB Flange (optional)
2-Pass NIH or MWB Flange (optional)
2-Pass NIH Victaulic (standard)
2-Pass MWB Victaulic (optional)
3-Pass NIH or MWB Flange (optional)
Drain (in. NPT)
Relief Valve Connection (in. NPTF)
Quantity Per Circuit
Relief Valve Setting (psig)
Flow Rate (lb air/min)
CONDENSER
Net Fluid Volume (gal.)
Maximum Refrigerant Pressure (psig)
Standard Condenser
Heat Machine
Maximum Fluid Side Pressure (psig)
Standard
Optional
Heat Machine
Fluid Connections
Inlet and Outlet (in.)
1-Pass NIH or MWB Flange (optional)
2-Pass NIH or MWB Flange (optional)
2-Pass NIH Victaulic (standard)
2-Pass MWB Victaulic (optional)
Drain (in. NPT)
Relief Valve Connection (in. NPTF)
(Standard/Heat Machine)
Quantity Per Circuit
Relief Valve Setting (psig)
Flow Rate (lb air/min)
Temperature Relief Valve Connection
(in. SAE Flare)
Discharge Line (Qty per Circuit)
Liquid Line (Qty per Circuit)
CHASSIS DIMENSIONS (ft-in.)
Length
Width
Height
HFC —
MWB —
NIH —
NPTF —
POE —
SAE —
150
150
7281/6826
175
175
7421/6966
06TU483 (1)
06TU483 (1)
No
10%
Yes
Yes
—
3/
3/
290
—
8
300
—
200
250
200
250
7551/7096
10,010/9,291
Semi-hermetic, twin screw
3500
06TU554 (1)
06TV680 (1)
Slide Valve
15%
8
275
275
10,029/9,311
300
300
10,043/9,324
06TV753 (1)
06TV819 (1)
Yes
8%
Yes
Yes
3/
3/
3/
8
HFC, R-134a
300
430
—
—
POE, 220
6
—
8
430
—
8
430
—
8
—
33.2
46.3
220
150
300
6
6
6
6
6
6
6
8
6
6
3/
8
3 /4
1
220
31.7
33.5
82.6
220
300
150
300
300
N/A
6
6
6
6
6
6
8
6
3 /8
3 /4 / 3 /4
2/2
220/300
31.7/46.6
1/
4
1
1
10 - 7/8
3 - 7 3 /8
5 - 107/8
10 - 1011/16
4-0
6 - 613/16
LEGEND
Hydrofluorocarbon
Marine Waterbox
Nozzle-In-Head
National Pipe Thread Female
Polyolester
Society of Automotive Engineers
NOTE: Weights are shown for standard chiller (2-pass, nozzle-in-head,
Victaulic water boxes).
7
Physical data (cont)
30XW150-400 UNIT PHYSICAL DATA — ENGLISH (cont)
30XW UNIT SIZE
NOMINAL CAPACITY (tons)
UNIT WEIGHT (lb) (Operating/Shipping)
COMPRESSORS
Compressor Speed (rpm)
Compressor Model Number (qty)
Unloading Type
Minimum Step Capacity % (standard)
Optional %
Economizer
Temperature Relief Valve Connection
(in. SAE Flare) (2 per circuit)
REFRIGERANT
Charge (lb) Circuit A
Charge (lb) Circuit B
OIL
Charge (gal.) Circuit A
Charge (gal.) Circuit B
EVAPORATOR
Net Fluid Volume (gal.)
Maximum Refrigerant Pressure (psig)
Maximum Fluid Side Pressure (psig)
Standard
Optional
Fluid Connections
Inlet and Outlet (in.)
1-Pass NIH or MWB Flange (optional)
2-Pass NIH or MWB Flange (optional)
2-Pass NIH Victaulic (standard)
2-Pass MWB Victaulic (optional)
3-Pass NIH or MWB Flange (optional)
Drain (in. NPT)
Relief Valve Connection (in. NPTF)
Quantity Per Circuit
Relief Valve Setting (psig)
Flow Rate (lb air/min)
CONDENSER
Net Fluid Volume (gal.)
Maximum Refrigerant Pressure (psig)
Standard Condenser
Heat Machine
Maximum Fluid Side Pressure (psig)
Standard
Optional
Heat Machine
Fluid Connections
Inlet and Outlet (in.)
1-Pass NIH or MWB Flange (optional)
2-Pass NIH or MWB Flange (optional)
2-Pass NIH Victaulic (standard)
2-Pass MWB Victaulic (optional)
Drain (in. NPT)
Relief Valve Connection (in. NPTF) (Standard/Heat Machine)
Quantity Per Circuit
Relief Valve Setting (psig)
Flow Rate (lb air/min)
Temperature Relief Valve Connection
(in. SAE Flare)
Discharge Line (Qty per Circuit)
Liquid Line (Qty per Circuit)
CHASSIS DIMENSIONS (ft-in.)
Length
Width
Height
HFC —
MWB —
NIH —
NPTF —
POE —
SAE —
LEGEND
Hydrofluorocarbon
Marine Waterbox
Nozzle-In-Head
National Pipe Thread Female
Polyolester
Society of Automotive Engineers
NOTE: Weights are shown for standard chiller (2-pass, nozzle-in-head,
Victaulic water boxes).
8
325
325
14,319/13,173
400
400
14,759/13,614
No
350
350
14,515/13,369
Semi-hermetic, twin screw
3500
06TU483 (2)
Slide Valve
15%
8%
Yes
—
3/
3/
06TU483 (2)
260
260
8
HFC, R-134a
270
270
POE, 220
5
5
76.0
220
150
300
6
6
6
6
6
3/
8
3 /4
1
220
31.7
82.6
220
300
150
300
300
6
6
8
6
3 /8
3/ / 3/
4
4
2/2
220/300
31.7/46.6
1/
4
1
1
13 - 33/4
3 - 1113/16
6 - 611/16
06TU554 (2)
Yes
8
270
270
30XW150-400 UNIT PHYSICAL DATA — SI
30XW UNIT SIZE
NOMINAL CAPACITY (kW)
UNIT WEIGHT (kg) (Operating/Shipping)
COMPRESSORS
Compressor Speed (r/s)
Compressor Model Number (qty)
Unloading Type
Minimum Step Capacity % (standard)
Optional %
Economizer
Temperature Relief Valve Connection
(in. SAE Flare) (2 per circuit)
REFRIGERANT
Charge (kg) Circuit A
Charge (kg) Circuit B
OIL
Charge (L) Circuit A
Charge (L) Circuit B
EVAPORATOR
Net Fluid Volume (L)
Maximum Refrigerant Pressure (kPa)
Maximum Fluid Side Pressure (kPa)
Standard
Optional
Fluid Connections
Inlet and Outlet (in.)
1-Pass NIH or MWB Flange (optional)
2-Pass NIH or MWB Flange (optional)
2-Pass NIH Victaulic (standard)
2-Pass MWB Victaulic (optional)
3-Pass NIH or MWB Flange (optional)
Drain (in. NPT)
Relief Valve Connection (in. NPTF)
Quantity Per Circuit
Relief Valve Setting (kPa)
Flow Rate (kg air/min)
CONDENSER
Net Fluid Volume (L)
Maximum Refrigerant Pressure (kPa)
Standard Condenser
Heat Machine
Maximum Fluid Side Pressure (kPa)
Standard
Optional
Heat Machine
Fluid Connections
Inlet and Outlet (in.)
1-Pass NIH or MWB Flange (optional)
2-Pass NIH or MWB Flange (optional)
2-Pass NIH Victaulic (standard)
2-Pass MWB Victaulic (optional)
Drain (in. NPT)
Relief Valve Connection (in. NPTF)
(Standard/Heat Machine)
Quantity Per Circuit
Relief Valve Setting (kPa)
Flow Rate (kg air/min)
Temperature Relief Valve Connection
(in. SAE Flare)
Discharge Line (Qty per Circuit)
Liquid Line (Qty per Circuit)
CHASSIS DIMENSIONS (mm)
Length
Width
Height
HFC —
MWB —
NIH —
NPTF —
POE —
SAE —
150
528
3303/3096
175
615
3366/3160
06TU483 (1)
06TU483 (1)
No
Yes
—
3/
131.5
—
8
136.1
—
200
250
703
878
3425/3219
4540/4214
Semi-hermetic, twin screw
58.3
06TU554 (1)
06TV680 (1)
Slide Valve
15%
10%
Yes
Yes
3/
—
8
HFC, R-134a
136.1
195.0
—
—
POE, 220
22.7
—
275
965
4549/4223
300
1053
4555/4229
06TV753 (1)
06TV819 (1)
Yes
Yes
3/
3/
8
195.0
—
8
195.0
—
30.3
—
125.7
175.3
1517
1034
2068
6
6
6
6
6
6
6
8
6
6
3/
8
3 /4
1
1517
14.38
126.8
196.8
1517
2068
1034
2068
2068
N/A
6
6
6
6
6
6
8
6
3 /8
3 /4 / 3 /4
2/2
1517/2068
14.38/21.1
1/
4
1
1
3070.2
1102.0
1800.0
3319.5
1219.2
2001.8
LEGEND
Hydrofluorocarbon
Marine Waterbox
Nozzle-In-Head
National Pipe Thread Female
Polyolester
Society of Automotive Engineers
NOTE: Weights are shown for standard chiller (2-pass, nozzle-in-head,
Victaulic water boxes).
9
Physical data (cont)
30XW150-400 UNIT PHYSICAL DATA — SI
30XW UNIT SIZE
NOMINAL CAPACITY (kW)
UNIT WEIGHT (kg) (Operating/Shipping)
COMPRESSORS
Compressor Speed (r/s)
Compressor Model Number (qty)
Unloading Type
Minimum Step Capacity % (standard)
Optional %
Economizer
Temperature Relief Valve Connection
(in. SAE Flare) (2 per circuit)
REFRIGERANT
Charge (kg) Circuit A
Charge (kg) Circuit B
OIL
Charge (L) Circuit A
Charge (L) Circuit B
EVAPORATOR
Net Fluid Volume (L)
Maximum Refrigerant Pressure (kPa)
Maximum Fluid Side Pressure (kPa)
Standard
Optional
Fluid Connections
Inlet and Outlet (in.)
1-Pass NIH or MWB Flange (optional)
2-Pass NIH or MWB Flange (optional)
2-Pass NIH Victaulic (standard)
2-Pass MWB Victaulic (optional)
3-Pass NIH or MWB Flange (optional)
Drain (in. NPT)
Relief Valve Connection (in. NPTF)
Quantity Per Circuit
Relief Valve Setting (kPa)
Flow Rate (kg air/min)
CONDENSER
Net Fluid Volume (L)
Maximum Refrigerant Pressure (kPa)
Standard Condenser
Heat Machine
Maximum Fluid Side Pressure (kPa)
Standard
Optional
Heat Machine
Fluid Connections
Inlet and Outlet (in.)
1-Pass NIH or MWB Flange (optional)
2-Pass NIH or MWB Flange (optional)
2-Pass NIH Victaulic (standard)
2-Pass MWB Victaulic (optional)
Drain (in. NPT)
Relief Valve Connection (in. NPTF)
(Standard/Heat Machine)
Quantity Per Circuit
Relief Valve Setting (kPa)
Flow Rate (kg air/min)
Temperature Relief Valve Connection
(in. SAE Flare)
Discharge Line (Qty per Circuit)
Liquid Line (Qty per Circuit)
CHASSIS DIMENSIONS (mm)
Length
Width
Height
HFC —
MWB —
NIH —
NPTF —
POE —
SAE —
LEGEND
Hydrofluorocarbon
Marine Waterbox
Nozzle-In-Head
National Pipe Thread Female
Polyolester
Society of Automotive Engineers
NOTE: Weights are shown for standard chiller (2-pass, nozzle-in-head,
Victaulic water boxes).
10
325
1143
6495/5975
No
350
1231
6584/6064
Semi-hermetic, twin screw
58.3
06TU483 (2)
Slide Valve
15%
8%
Yes
—
3/
06TU483 (2)
117.9
117.9
8
HFC, R-134a
122.5
122.5
POE, 220
18.9
18.9
287.7
1517
1034
2068
6
6
8
6
6
3/
8
3 /4
1
1517
14.38
312.7
1517
2068
1034
2068
2068
6
6
8
6
3 /8
3/4 / 3/4
2/2
1517/2068
14.38/21.1
1/
4
1
1
4057.7
1215.0
1999.0
400
1407
6695/6175
06TU554 (2)
Yes
3/
8
122.5
122.5
Options and accessories
ITEM
FACTORYINSTALLED
OPTION
FIELDINSTALLED
ACCESSORY
X
X
X
X
X
X
Controls Options
Navigator Hand-Held Display
Remote Enhanced Display
BACnet Translator Control
LON Translator Control
Energy Management Module
Evaporator Options
One-Pass Evaporator Head
Three-Pass Evaporator Head
Marine Waterboxes
Flanged Connections
Isolation Valves
Suction Service Valve(s)
Insulation Package
300 psig (2068 kPa) Operating Pressure
Condenser Options
Heat Machine Condenser
One-Pass Condenser Head
Marine Waterboxes
Flanged Connections
300 psig (2068 kPa) Operating Pressure
Starter Options
Wye-Delta Starter
Dual Point Power (sizes 325-400)
Non-Fused Disconnect
Control Transformer
115-v GFCI Convenience Outlet
Unit Options
Minimum Load Control
Temperature Reset Sensor
Nitrogen Charge
Crate for Shipment
Vibration Pads
Vibration Isolation Springs
Seismic Package
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
a30-4684.eps
X
X
X
Factory-installed options
Navigator™ module provides a portable, hand-held display for convenient access to unit status, operation, configuration and troubleshooting diagnostics capability. The
four-line, 20-character LCD (liquid crystal display) display
provides clear language information in English, French,
Spanish, or Portuguese. The Navigator module features an
industrial grade extension cord and magnets located on the
back of the weatherproof enclosure to allow attachment to
sheet metal components for hands free operation.
BACnet translator control provides an interface
between the chiller and BACnet Local Area Network
(LAN, i.e., MS/TP EIA 485). The BACnet translator control is also available as a field-installed option.
LON translator control provides an interface between
the chiller and Local Operating Network (LON, i.e., LONWorks* FT-10A ANSI/EIA-709.1). The LON translator
control is also available as a field-installed option.
Energy management module provides energy management capabilities to minimize chiller energy consumption.
Several features are provided with this module including
leaving fluid temperature reset, cooling set point reset or
demand limit control from a 4 to 20 mA signal, 2-point
demand limit control (from 0 to 100%) activated by a
*Registered trademark of Echelon Corporation.
remote contact closure, and discrete input for "Ice Done"
indication for ice stage system interface.
The 300 psig (2068 kPa) evaporator operating
pressure option allows operation for water-side pressure
up to 300 psig (2068 kPa).
The 300 psig (2068 kPa) condenser operating
pressure option allows operation for water-side pressure
up to 300 psig (2068 kPa).
Minimum load control allows additional capacity reduction for unit operation below the minimum step of unloading via hot gas bypass.
Marine waterboxes provide water piping connections
extending from the side of the waterbox (as opposed to
extending from the end of the waterbox). This option also
includes a removable bolt on waterbox cover allowing
access to the heat exchanger tubes without breaking the
existing field piping. This option is available for both the
evaporator and condenser.
Flanged connection option provides an ANSI (American National Standards Institute) flange on the end of the
chiller water piping for connection to a customer-supplied
mating flange in the field piping. This option is available
for both the evaporator and condenser.
a30-4685
One-pass evaporator provides a lower pressure drop
through the evaporator for applications with low delta T
(temperature) or high flow or where the evaporators are
piped in a series or side stream arrangement. One-pass
evaporator is only available with flanged connections and
with suction end leaving water connection.
Three-pass evaporator provides a greater efficiency for
brine applications and in applications with a high delta T
and low flow. Three-pass evaporator is only available with
flanged connections and suction end leaving water
connection.
Heat machine condenser allows operation with up to
140 F (60 C) leaving condenser water temperature on
30XW150-200 and 30XW325-400 units (see E-CAT for
11
Options and accessories (cont)
selections). In addition, this option provides factoryinstalled thermal insulation on the condenser, condenser
flow switch and leaving condenser water temperature sensor to facilitate operating in HEAT mode. Heat machine
units require field-installed thermal insulation on the compressor, discharge piping, oil lines, and water boxes
because of high temperature. The heat machine units
require the 300 psig (2068 kPa) condenser option.
One-pass condenser provides a lower pressure drop
through the condenser for applications with low delta T
(temperature) or high flow or where the condensers are
piped in a series. The one-pass condenser option is only
available with flanged connections and with a suction end
leaving water connection.
Wye-delta start is an alternate starting method which
reduces the inrush current when starting the compressor.
Wye delta start is standard on 208-v, and 230-v units,
optional for 380-v, 460-v, and 575-v.
Dual point power provides a means for connecting two
sources of power to dual compressor 30XW chillers (sizes
325-400 only). One source of power is wired to operate
the compressor on the A circuit and one source of power is
wired to operate the compressor on the B circuit of the
chiller.
Non-fused disconnect provides a no load, lockable,
through the door handle disconnect for unit power on the
chiller. On dual point power, one disconnect is provided for
each of the two main power supplies. This disconnect does
not remove the control circuit from power supply.
Control transformer is sized to supply the needs of the
control circuit from the main power supply.
115-v GFCI convenience outlet includes 4 amp GFI
(ground fault interrupt) receptacle. Convenience outlet is
115-v female receptacle. Not available with 380-v units.
Nitrogen charge provides a 15 psig (103.4 kPa) charge
of nitrogen instead of a full factory charge of R-134a
refrigerant to keep the chiller refrigerant circuit dry during
shipment. This option is recommended for applications
where the unit will be disassembled prior to installation.
Units shipped with a nitrogen charge will receive an electrical continuity test at the factory prior to shipment.
Crate for shipment provides a wooden crate around the
chiller. The chiller is bagged prior to being placed in the
crate. This option is recommended for export orders.
Optional refrigerant isolation valves enable service
personnel to store the refrigerant charge in the evaporator
or condenser during servicing. During servicing, the inchiller storage reduces refrigerant loss and eliminates timeconsuming transfer procedures. As a self-contained unit,
the AquaForce 30XW chiller does not require additional
remote storage systems.
Suction service valve(s) allow for further isolation of the
compressor from the evaporator vessel.
Insulation package provides 3/4-in. thermal insulation
on compressor suction housing, and suction line.
12
Field-installed accessories
Remote enhanced display is a remotely mounted
indoor 40-character per line, 16-line display panel for unit
monitoring and diagnostics.
BACnet translator control provides an interface
between the chiller and BACnet Local Area Network
(LAN, i.e., MS/TP EIA 485). The BACnet translator control is also available as a factory-installed option.
LON translator control provides an interface between
the chiller and Local Operating Network (LON, i.e., LONWorks FT-10A ANSI/EIA-709.1). The LON translator
control is also available as a factory-installed option.
Energy management module provides energy management capabilities to minimize chiller energy consumption.
Several features are provided with this module including
leaving fluid temperature reset, cooling set point reset or
demand limit control from a 4 to 20 mA signal, 2-point
demand limit control (from 0 to 100%) activated by a
remote contact closure, and discrete input for "Ice Done"
indication for ice stage system interface.
Temperature reset sensor provides temperature reset
capability from either the occupied space or outdoor temperature sensor.
NOTE: Temperature reset capability using return temperature is standard.
Vibration isolation pads are neoprene pads for installation under the chiller feet at the jobsite.
Vibration springs provide a set of non-siesmic spring
isolators for installation at the jobsite.
Seismic isolation package meets International Building
Code and ASCE 7 seismic qualification requirements in
concurrence with ICC ES AC156 Acceptance Criteria for
Seismic Qualification by Shake-Table Testing of Nonstructural Components and Systems.
Navigator™ module provides a portable, hand-held display for convenient access to unit status, operation, configuration and troubleshooting diagnostics capability. The
four-line, 20-character LCD (liquid crystal display) display
provides clear language information in English, French,
Spanish, or Portuguese. The Navigator module features an
industrial grade extension chord and magnets located on
the back of the weatherproof enclosure to allow attachment to sheet metal components for hands free operation.
Field-supplied and field-installed insulation
Evaporator waterbox insulation must be field supplied
and field installed. When insulating waterbox and tube
sheets, allow for service access and removal of covers. To
estimate waterbox and tube sheet cover areas, refer to the
following figure.
Insulation for discharge piping between the compressor and condenser must be field installed on heat machine
units. Refer to the following figure.
Condenser waterbox insulation must be field supplied
and field installed on heat machine units. When insulating
waterbox and tube sheets, allow for service access and
removal of covers. To estimate waterbox and tube sheet
cover areas, refer to the following figure.
Dimensions
FIELD-SUPPLIED AND FIELD-INSTALLED INSULATION
30XW150-300 UNIT
a30-5096
EVAPORATOR WATERBOX/
TUBESHEET INSULATION
NEEDED
COMPRESSOR
SUCTION HOUSING
(OPTIONAL INSULATION
PACKAGE ONLY)
CONDENSER WATERBOX/
TUBESHEET INSULATION
NEEDED (HEAT MACHINE
UNITS ONLY)
DISCHARGE PIPING
INSULATION NEEDED
(HEAT MACHINE UNITS ONLY)
EVAPORATOR WATERBOX/
TUBESHEET INSULATION
NEEDED
OIL LINE, FILTER, AND SWITCH
ASSEMBLY INSULATION NEEDED
(HEAT MACHINE UNITS ONLY)
CONDENSER WATERBOX/
TUBESHEET INSULATION NEEDED
(HEAT MACHINE UNITS ONLY)
30XW325-400 UNITS
EVAPORATOR WATERBOX/
TUBESHEET INSULATION
NEEDED
CONDENSER WATERBOX/
TUBESHEET INSULATION
NEEDED (HEAT MACHINE
UNITS ONLY)
COMPRESSOR
SUCTION HOUSING
(OPTIONAL INSULATION
PACKAGE ONLY)
DISCHARGE PIPING
INSULATION NEEDED
(HEAT MACHINE UNITS ONLY)
OIL LINE, FILTER, AND SWITCH
ASSEMBLY INSULATION NEEDED
(HEAT MACHINE UNITS ONLY)
NOTES:
1. Field-installed insulation for standard units shown in medium gray.
2. Field-installed insulation for heat machine units shown in dark gray.
3. Factory-installed insulation for optional insulation kit shown in light gray.
4. Back of the unit shown.
COMPRESSOR
SUCTION HOUSING
(OPTIONAL INSULATION
PACKAGE ONLY)
EVAPORATOR WATERBOX/
TUBESHEET INSULATION
NEEDED
CONDENSER WATERBOX/
TUBESHEET INSULATION
NEEDED (HEAT MACHINE
UNITS ONLY)
a30-5097
13
Dimensions (cont)
30XW150-200 UNIT DIMENSIONS
A30-4887
STANDARD 30XW150-200 UNIT DIMENSIONS
30XW UNIT OPERATING
SIZE
WEIGHT, lb [kg]
150
175
200
7281 [3303]
7421 [3366]
7551 [3425]
DIMENSION A,
in. [mm]
4
A
3/ [9.53]
2411 [1094]
8
3/8 [9.53]
2457 [1115]
3/ [9.53]
2500 [1134]
8
MOUNTING LOCATION WEIGHT, lb [kg]
1
1312 [595]
1338 [607]
1361 [617]
2
1772 [804]
1806 [819]
1838 [834]
3
1785 [810]
1820 [825]
1852 [840]
LEGEND
MWB — Marine Waterbox
NIH
— Nozzle-In-Head
NOTE: Weights shown for standard chiller (2 pass with NIH, victaulic waterboxes).
30XW150-200 UNIT AND WATERBOX SPECIFICATIONS
Evaporator Heat Exchanger Length
9'-1" 1/16
Condenser Heat Exchanger Length
9'-1" 1/16
A
B
C
D
Overall Length = Larger of A or B + 9’-1 1/16 ” + larger of C or D, where:
A = evaporator discharge end water box length
B = condenser discharge end water box length
C = evaporator suction end water box length
D = condenser suction end water box length
WATER BOX ADDITIONAL
LENGTH ADDERS
WATER BOX
WEIGHT ADDERS (lb)
FIELD INSULATION
REQUIREMENTS†
sq
ft
TYPE
EVAP
COND
EVAP
COND
EVAP
COND*
Compressor
25
Return Cover
0'-4" 1/16
0'-4" 3/8
Std
Std
6
7
Suction Line
7
NIH 2 Pass Vic
0'-7" 1/8
0'-7" 7/16
Std
Std
7
8
Heat Machine Field Insulation
NIH 2 Pass FL
0'-4" 5/8
1'-1" 7/8
137
146
7
8
Discharge Line (3 1/8" ID tubular)
15
NIH 1 Pass FL
1'-0" 5/8
1'-1" 7/8
188
244
7
8
Discharge Line (other)
14
NIH 3 Pass FL
1'-0" 5/8
N/A
198
N/A
7
8
Oil Lines (5/8" ID tubular)
12
MWB 2 Pass Vic
1'-4" 5/16
1'-4" 5/16
232
274
12
13
Oil lines (3/8" ID tubular)
6
MWB 2 Pass FL
1'-4" 5/16
1'-4" 5/16
265
357
12
13
MLV lines (5/8" ID tubular)
3
MWB 1 Pass FL
1'-4" 5/16
1'-4" 5/16
508
598
12
13
Oil Filter
1.2
MWB 3 Pass FL
1'-4" 5/16
N/A
539
N/A
12
13
NOTES:
1. Add the additional weight to the standard unit operating weight to find the total weight of the unit.
2.
Denotes center of gravity.
3. Dimensions shown in ft-in. [mm] unless noted.
4. The recommended service clearance around the machine is 3 ft [914 mm]. Consult local electrical codes for minimum clearance requirements on control panel side.
5. Victaulic nozzles are standard on all units. A flow switch is factory-installed in evaporator inlet victaulic nozzle.
6. Maximum fluid side pressure of condenser or evaporator is 150 psig [1034 kPa] (standard) or 300
psig [2068 kPa] (optional).
7. Operating weight includes weight of water, refrigerent, and oil.
14
FIELD INSULATION
REQUIREMENTS (sq ft)
*Condenser insulation required for heat machine.
†Not required if thermal insulation package option selected.
30XW150-200 UNIT DIMENSIONS (cont)
MLV
SAE
SSV
LEGEND
— Minimum Load Valve
— Society of Automotive Engineers
— Suction Service Valve
ISOLATION
VALVE
(OPTIONAL)
ISOLATION
VALVE
(OPTIONAL)
a30-5098
SEE PAGE 14
15
Dimensions (cont)
30XW150-200 UNIT DIMENSIONS (cont)
NIH EVAPORATOR
WATERBOX FLANGE DETAIL
a30-4725
DISCHARGE
DISCHARGE
DISCHARGE
DISCHARGE
SUCTION
SUCTION
SUCTION
SUCTION
30XW UNIT
SIZE
NUMBER OF
PASSES
150-200
3
VICTUALIC
FLANGE
A
in. (mm)
B
in. (mm)
2
59/16 (142)
59/16 (142)
1
—
—
—
—
A
in. (mm)
CONNECTION SIZE, in. (mm)
B
in. (mm)
Victaulic
413/16 (122) 413/16 (122)
0 (0)
0 (0)
411/16 (119) 411/16 (119)
a30-5099
Flange
6 (152)
6 (152)
—
6 (152)
—
6 (152)
MARINE EVAPORATOR
30XW UNIT
SIZE
NUMBER OF
PASSES
A
in. (mm)
B
in. (mm)
CONNECTION
SIZE, in. (mm)
2
6 (152)
6 (152)
6 (152)
1
6 (152)
6 (152)
6 (152)
3
6 (152)
6 (152)
6 (152)
150-200
DISCHARGE
DISCHARGE
DISCHARGE
DISCHARGE
A30-5100
SUCTION
SUCTION
SUCTION
SUCTION
NIH CONDENSER
30XW UNIT NUMBER OF
SIZE
PASSES
DISCHARGE
DISCHARGE
DISCHARGE
150-200
A
in. (mm)
2
6 (152)
1
0 (0)*
B
in. (mm)
55/8
(142)
0 (0)*
CONNECTION
SIZE, in. (mm)
6 (152)
6 (152)*
* Flange only. Not available on Victualic.
A30-5101
SUCTION
SUCTION
SUCTION
MARINE CONDENSER
30XW UNIT
SIZE
DISCHARGE
DISCHARGE
DISCHARGE
150-200
A30-5102
SUCTION
16
SUCTION
SUCTION
NUMBER OF
PASSES
A
in. (mm)
B
in. (mm)
CONNECTION
SIZE, in. (mm)
2
57/8 (149)
57/8 (149)
6 (152)
1
57/8 (149)
57/8 (149)
6 (152)
30XW250-300 UNIT DIMENSIONS
A30-5019
STANDARD 30XW250-300 UNIT DIMENSIONS
30XW UNIT OPERATING
SIZE
WEIGHT, lb [kg]
250
275
300
10,010 [4540]
10,029 [4548]
10,043 [4555]
DIMENSION A,
in. [mm]
2
3
4
A
3/ [9.53]
2408 [1092] 2520 [1143] 3168 [1437]
8
3/ [9.53]
2412 [1094] 2524 [1145] 3174 [1440]
8
3/ [9.53]
2416 [1096] 2528 [1147] 3178 [1442]
8
MOUNTING LOCATION WEIGHT, lb [kg]
1
1915 [869]
1919 [870]
1921 [872]
LEGEND
MWB — Marine Waterbox
NIH
— Nozzle-In-Head
NOTE: Weights shown for standard chiller (2 pass with NIH, victaulic waterboxes).
30XW250-300 UNIT AND WATERBOX SPECIFICATIONS
Evaporator Heat Exchanger Length
9' - 8" 15/16
Condenser Heat Exchanger Length
9' - 8" 15/16
A
B
C
D
Overall Length = Larger of A or B + 9’- 8 15/16” + larger of C or D, where:
A = evaporator discharge end water box length
B = condenser discharge end water box length
C = evaporator suction end water box length
D = condenser suction end water box length
WATER BOX ADDITIONAL
LENGTH ADDERS
WATER BOX
WEIGHT ADDERS (lb)
FIELD INSULATION
REQUIREMENTS (sq ft)
FIELD INSULATION
REQUIREMENTS†
SQ
FT
TYPE
EVAP
COND
EVAP
COND
EVAP
COND*
Compressor
25
Return Cover
0'-4" 3/8
0'-5" 1/4
Std.
Std
7
9
Suction Line
7
NIH 2 Pass Vic
0'-7"-7/16
0'-8" 1/2
Std.
Std
8
10
NIH 2 Pass FL
1'-1" 7/8
1'-1" 7/8
151
170
8
10
Discharge Line (3 1/8" ID tubular)
15
NIH 1 Pass FL
1'-1" 7/8
1'-1" 7/8
224
268
8
10
Discharge Line (other)
14
Heat Machine Field Insulation
NIH 3 Pass FL
1'-1" 7/8
N/A
237
N/A
8
10
Oil Lines (5/8" ID tubular)
12
MWB 2 Pass Vic
1'-4" 5/16
1'-4" 5/16
278
285
13
16
Oil lines (3/8" ID tubular)
6
MWB 2 Pass FL
1'-4" 5/16
1'-4" 5/16
311
335
13
16
MLV lines (5/8" ID tubular)
3
MWB 1 Pass FL
1'-4" 5/16
1'-4" 5/16
600
607
13
16
Oil Filter
1.2
MWB 3 Pass FL
1'-4" 5/16
N/A
635
N/A
13
16
NOTES:
1. Add the additional weight to the standard unit operating weight to find the total weight of the
unit.
2.
Denotes center of gravity.
3. Dimensions shown in ft-in. [mm] unless noted.
4. The recommended service clearance around the machine is 3 ft [914 mm]. Consult local electrical codes for minimum clearance requirements on control panel side.
5. Victaulic nozzles are standard on all units. A flow switch is factory-installed in evaporator inlet
victaulic nozzle.
6. Maximum fluid side pressure of condenser or evaporator is 150 psig [1034 kPa] (standard) or
300 psig [2068 kPa] (optional).
7. Operating weight includes weight of water, refrigerent, and oil.
*Condenser insulation required for heat machine.
†Not required if thermal insulation package option selected.
17
Dimensions (cont)
30XW250-300 UNIT DIMENSIONS (cont)
MLV
SAE
SSV
LEGEND
— Minimum Load Valve
— Society of Automotive Engineers
— Suction Service Valve
ISOLATION
VALVE
(OPTIONAL)
ISOLATION
VALVE
(OPTIONAL)
a30-5103
SEE PAGE 17
18
30XW250-300 UNIT DIMENSIONS (cont)
WATERBOX FLANGE DETAIL
a30-4725
NIH EVAPORATOR
DISCHARGE
DISCHARGE
SUCTION
30XW UNIT
SIZE
DISCHARGE
SUCTION
SUCTION
SUCTION
NUMBER OF
PASSES
VICTUALIC
A
in. (mm)
FLANGE
B
in. (mm)
511/16 (145) 511/16 (145)
CONNECTION SIZE, in. (mm)
A
in. (mm)
B
in. (mm)
Victaulic
a30-5104
Flange
55/8 (142)
55/8 (142)
6 (152)
6 (152)
1
—
—
0 (0)
0 (0)
—
6 (152)
3
—
—
51/2 (140)
51/2 (140)
—
6 (152)
2
250-300
DISCHARGE
MARINE EVAPORATOR
30XW UNIT
SIZE
DISCHARGE
DISCHARGE
DISCHARGE
DISCHARGE
NUMBER OF
PASSES
250-300
A
in. (mm)
B
in. (mm)
2
(160)
6 (152)
1
65/16 (160)
65/16 (160)
6 (152)
3
65/16 (160)
65/16 (160)
6 (152)
(160)
65/16
CONNECTION
SIZE, in. (mm)
65/16
A30-5105
SUCTION
SUCTION
SUCTION
SUCTION
NIH CONDENSER
30XW UNIT NUMBER OF
SIZE
PASSES
DISCHARGE
DISCHARGE
DISCHARGE
2
250-300
1
A
in. (mm)
611/16
(170)
0 (0)
B
in. (mm)
611/16
(170)
0 (0)
CONNECTION
SIZE, in. (mm)
6 (152)
6 (152)
A30-5106
SUCTION
SUCTION
SUCTION
MARINE CONDENSER
30XW UNIT
SIZE
DISCHARGE
DISCHARGE
DISCHARGE
250-300
NUMBER OF
PASSES
A
in. (mm)
B
in. (mm)
CONNECTION
SIZE, in. (mm)
2
73/8 (188
73/8 (188
6 (152)
1
73/8 (188
73/8 (188
6 (152)
A30-5107
SUCTION
SUCTION
SUCTION
19
Dimensions (cont)
30XW325-400 UNIT DIMENSIONS
a30-4894
STANDARD 30XW325-400 UNIT DIMENSIONS
30XW UNIT OPERATING
SIZE
WEIGHT, lb [kg]
325
350
400
14,319 [6495]
14,515 [6584]
14,759 [6695]
LEGEND
MWB — Marine Waterbox
NIH
— Nozzle-In-Head
MOUNTING LOCATION WEIGHT, lb [kg]
DIMENSIONS (ft-in. [mm])
1
2
3
4
A
B
C
3770 [1710] 3891 [1765] 3277 [1486] 3381 [1534] 6-3/8 [1837] 6-3/8 [1837] 3/8 [9.53]
3822 [1734] 3944 [1789] 3322 [1507] 3428 [1555] 6-3/8 [1837] 6-3/8 [1837] 3/8 [9.53]
3886 [1763] 4010 [1819] 3378 [1532] 3485 [1581] 6-3/8 [1837] 6-3/8 [1837] 3/8 [9.53]
NOTE: Weights shown for standard chiller (2 pass with NIH, victaulic waterboxes).
30XW325-400 UNIT AND WATERBOX SPECIFICATIONS
Evaporator Heat Exchanger Length
12' - 2"
Condenser Heat Exchanger Length
12' - 2"
A
B
C
D
Overall Length = Larger of A or B + 12’- 2” + larger of C or D, where:
A = evaporator discharge end water box length
B = condenser discharge end water box length
C = evaporator suction end water box length
D = condenser suction end water box length
WATER BOX ADDITIONAL
LENGTH ADDERS
TYPE
WATER BOX
WEIGHT ADDERS (lb)
FIELD INSULATION
REQUIREMENTS (sq ft)
EVAP
COND
EVAP
COND
EVAP
SQ
FT
Compressor
25
Suction Line
7
Return Cover
0'-4" 7/8
0'-5" 1/4
Std
Std
8
9
NIH 2 Pass Vic
0'-7" 13/16
0'-8" 1/2
Std
Std
9
10
NIH 2 Pass FL
1'-0" 5/8
1'-1" 7/8
158
174
9
10
NIH 1 Pass FL
1'-0" 5/8
1'-1" 7/8
241
268
9
10
Discharge Line (other)
14
NIH 3 Pass FL
1'-0" 5/8
N/A
253
N/A
9
10
Oil Lines (5/8" ID tubular)
12
MWB 2 Pass Vic
1'-4" 5/16
1'-4" 5/16
276
278
14
16
Oil lines (3/8" ID tubular)
6
MWB 2 Pass FL
1'-4" 5/16
1'-4" 5/16
355
362
14
16
MLV lines (5/8" ID tubular)
3
MWB 1 Pass FL
1'-4" 5/16
1'-4" 5/16
611
651
14
16
Oil Filter
1.2
MWB 3 Pass FL
1'-4" 5/16
N/A
657
N/A
14
16
NOTES:
1. Add the additional weight to the standard unit operating weight to find the total weight of
the unit.
2.
Denotes center of gravity.
3. Dimensions shown in ft-in. [mm] unless noted.
4. The recommended service clearance around the machine is 3 ft [914 mm]. Consult local
electrical codes for minimum clearance requirements on control panel side.
5. Victaulic nozzles are standard on all units. A flow switch is factory-installed in evaporator
inlet victaulic nozzle.
6. Maximum fluid side pressure of condenser or evaporator is 150 psig [1034 kPa] (standard) or 300 psig [2068 kPa] (optional).
7. Operating weight includes weight of water, refrigerent, and oil.
20
COND*
FIELD INSULATION
REQUIREMENTS†
Heat Machine Field Insulation
Discharge Line (3 1/8" ID tubular)
*Condenser insulation required for heat machine.
†Not required if thermal insulation package option selected.
15
30XW325-400 UNIT DIMENSIONS (cont)
a30-5108
MLV
SAE
SSV
LEGEND
— Minimum Load Valve
— Society of Automotive Engineers
— Suction Service Valve
ISOLATION VALVES
(OPTIONAL)
ISOLATION VALVE
(OPTIONAL)
ISOLATION VALVE
(OPTIONAL)
SEE PAGE 20
21
Dimensions (cont)
30XW325-400 UNIT DIMENSIONS (cont)
NIH EVAPORATOR
WATERBOX FLANGE DETAIL
a30-4725
DISCHARGE
DISCHARGE
DISCHARGE
DISCHARGE
SUCTION
SUCTION
SUCTION
SUCTION
30XW UNIT
SIZE
NUMBER OF
PASSES
325-400
VICTAULIC
CONNECTION SIZE,
in. (mm)
FLANGE
A
in. (mm)
B
in. (mm)
A
in. (mm)
B
in. (mm)
2
611/16 (170)
611/16 (170)
513/16 (148)
1
—
—
0 (0)
3
—
—
513/16 (148)
Flange
Victaulic
513/16 (148)
6 (152)
8 (203)
0 (0)
6 (152)
—
513/16 (148)
6 (152)
—
a30-5109
MARINE EVAPORATOR
30XW UNIT
SIZE
DISCHARGE
DISCHARGE
DISCHARGE
SUCTION
SUCTION
SUCTION
A
in. (mm)
B
in. (mm)
Flange
Victaulic
2
71/8 (180)
71/8 (180)
6 (152)
6 (152)
1
71/8 (180)
71/8 (180)
6 (152)
6 (152)
3
71/8 (180)
71/8 (180)
6 (152)
6 (152)
A
in. (mm)
B
in. (mm)
DISCHARGE
325-400
CONNECTION SIZE,
in. (mm)
NUMBER OF
PASSES
A30-5110
SUCTION
NIH CONDENSER
30XW UNIT
SIZE
DISCHARGE
DISCHARGE
NUMBER OF
PASSES
DISCHARGE
325-400
2
1
611/16 (170) 611/16 (170)
0 (0)*
0 (0)*
CONNECTION SIZE,
in. (mm)
Flange
Victaulic
6 (152)
8 (203)
6 (152)
—
* Flange only. Not available on Victualic units.
A30-5111
SUCTION
SUCTION
SUCTION
MARINE CONDENSER
DISCHARGE
DISCHARGE
DISCHARGE
30XW UNIT
SIZE
325-400
A
in. (mm)
B
in. (mm)
Flange
Victaulic
2
73/8 (188)
73/8 (188)
6 (152)
6 (152)
1
73/8 (188)
73/8 (188)
6 (152)
6 (152)
A30-5112
SUCTION
22
SUCTION
SUCTION
CONNECTION SIZE,
in. (mm)
NUMBER OF
PASSES
Selection procedure
Carrier’s packaged selection program provides quick,
easy selection of Carrier’s water-cooled chillers. The program considers specific temperature, fluid and flow
requirements among other factors such as fouling and altitude corrections.
Before selecting a chiller, consider the following points:
Leaving water (fluid) temperature (LWT)
• The LWT must be at least 40 F (4.4 C) or greater.
• If the LWT requirement is greater than 60 F (15.5 C), a
mixing loop is required.
Entering water (fluid) temperature (EWT)
• If the EWT requirement is greater than 70 F (21.1 C), a
mixing loop is required. The EWT should not exceed
70 F (21.1 C) for extended operation. Pulldown can be
accomplished from 95 F (35 C).
Evaporator flow rate or evaporator delta-T:
• The evaporator delta-T (EWT – LWT) must fall between
5 and 20° F (2.8 and 11.1° C) while still meeting the
maximum entering requirements.
• For larger or smaller delta-T applications, a mixing loop
is required. If the evaporator flow is variable, the rate of
change of flow should not exceed 10% per minute.
The loop volume in circulation must equal or exceed
3 gallons per nominal ton (3.2 L per kW) of cooling for
temperature stability and accuracy in normal air conditioning applications. In process cooling applications,
there should be 6 to 10 gallons per ton (6.5 to 10.8 L
per kW). To achieve this loop volume, it is often necessary to install a tank in the loop. The tank should be baffled to ensure there is no stratification, and that water
(or brine) entering the tank is adequately mixed with liquid in the tank. See Water Loop Volume in the Application Data section.
Evaporator pressure drop:
• A high evaporator pressure drop can be expected when
the evaporator delta-T is low. A mixing loop can help to
alleviate this situation.
• The three-pass evaporator option is recommended to
increase performance when the evaporator delta T is
high. This is particularly helpful with brine applications.
Condenser pressure drop:
• A high condenser pressure drop can be expected when
the condenser delta-T is low. A one-pass condenser can
help lower pressure drop.
Series chillers:
• One-pass heat exchangers can help lower pressure
drop when heat exchangers are placed in series.
Water quality, fouling factor:
• Poor water quality can increase the required evaporator
fouling factor.
• Higher than standard fouling factors lead to lower
capacity and higher input kW from a given chiller size
compared to running the same application with better
water quality (and lower fouling factors).
Temperature reset:
• Return water (standard)
• Outside air temperature (accessory sensor required)
• Space temperature (accessory sensor required)
• 4 to 20 mA (requires an energy management module)
Demand limit:
• 2-step (requires an energy management module)
• 4 to 20 mA (requires an energy management module)
• CCN Loadshed
23
Performance data
EVAPORATOR AND CONDENSER FLOW RATES
30XW UNIT
150
175
200
250
275
300
325
350
400
Two pass
One pass
Three pass
Two pass
One pass
Three pass
Two pass
One pass
Three pass
Two pass
One pass
Three pass
Two pass
One pass
Three pass
Two pass
One pass
Three pass
Two pass
One pass
Three pass
Two pass
One pass
Three pass
Two pass
One pass
Three pass
EVAPORATOR
Leaving Fluid/Entering Fluid
Minimum
Maximum
40 F (4.4 C)/
60 F (15.6 C)/
45 F (7.2 C)
70 F (21.1 C)
Minimum
Maximum
Flow Rate
Flow Rate
GPM
L/s
GPM
L/s
200
12.6
720
45.4
384
24.2
1520
95.9
120
7.6
480
30.3
213
13.4
765
48.3
408
25.7
1615
101.9
128
8.0
510
32.2
241
15.2
869
54.8
463
29.2
1834
115.7
145
9.1
579
36.5
301
19.0
1085
68.4
579
36.5
2290
144.5
181
11.4
723
45.6
329
20.7
1183
74.6
631
39.8
2497
157.5
197
12.4
788
49.7
357
22.5
1285
81.1
685
43.2
2712
171.1
214
13.5
857
54.0
403
25.4
1149
91.4
773
48.8
3059
193.0
242
15.2
966
60.9
429
27.0
1544
97.4
823
51.9
3259
205.6
257
16.2
1029
64.9
481
30.4
1733
109.3
924
58.3
3658
230.8
289
18.2
1155
72.9
CONDENSER
Leaving Fluid/Entering Fluid
Minimum
Maximum*
70 F (21.1 C)/
118 F (47.8 C)/
65 F (18.3 C)
110 F (43.3 C)
Minimum
Maximum
Flow Rate
Flow Rate
GPM
L/s
GPM
L/s
240
15.1
960
60.6
480
30.3
1600
100.9
—
—
—
—
255
16.1
1020
64.4
510
32.2
1700
107.3
—
—
—
—
290
18.3
1158
731.0
579
36.5
1930
121.8
—
—
—
—
362
22.8
1447
91.3
723
45.6
2411
152.1
—
—
—
—
394
24.9
1577
99.5
788
49.7
2628
165.8
—
—
—
—
428
27.0
1713
108.1
857
54.0
2855
180.1
—
—
—
—
483
30.5
1932
121.9
966
60.9
3220
203.2
—
—
—
—
515
32.5
2058
129.8
1029
64.9
3430
216.4
—
—
—
—
578
36.4
2310
145.7
1155
72.9
3850
242.9
—
—
—
—
*Maximum condenser fluid temperature shown for standard condensing
option. High condensing or heat machine option may have leaving fluid
temperatures up to 140 F (60 C) and entering up to 128 F (53.3 C).
24
NOMINAL
Evaporator
Condenser
Nominal
Flow Rate
GPM
L/s
384
24.2
384
24.2
384
24.2
408
25.7
408
25.7
408
25.7
463
29.2
463
29.2
463
29.2
579
36.5
579
36.5
463
29.2
631
39.8
631
39.8
463
29.2
685
43.2
685
43.2
463
29.2
773
48.8
773
48.8
773
48.8
823
51.9
823
51.9
823
51.9
924
58.3
924
58.3
924
58.3
Nominal
Flow Rate
GPM
L/s
480
30.3
480
30.3
—
—
510
32.2
510
32.2
—
—
579
36.5
579
36.5
—
—
723
45.6
723
45.6
—
—
788
49.7
788
49.7
—
—
857
54.0
857
54.0
—
—
966
60.9
966
60.9
—
—
1029
64.9
1029
64.9
—
—
1155
72.9
1155
72.9
—
—
30XW150-200 EVAPORATOR MARINE WATERBOX
(kPa)
ft wg
(119.4) 40.00
(104.4) 35.00
3 pass
1 pass
Pressure Drop
(89.5) 30.00
2 pass
(74.6) 25.00
(59.7) 20.00
(44.8) 15.00
(29.8) 10.00
(14.9)
5.00
(0)
0.00
0
(0)
500
(31.5)
1000
(63.1)
1500
(94.6)
2000 gpm
(126.2) (L/s)
Evaporator Flow Rate
NOTE: The table above represents pressure drops only. The table does not imply that the chiller can be properly applied over
the entire range of evaporator water flow rates represented.
a30-4833
30XW250-300 EVAPORATOR MARINE WATERBOX
(kPa) ft wg
(119.4) 40.00
(104.4) 35.00
Pressure Drop
2 pass
(89.5) 30.00
3 pass
1 pass
(74.6) 25.00
(59.7) 20.00
(44.8) 15.00
(29.8) 10.00
(14.9) 5.00
(0) 0.00
0
(0)
500
(31.5)
1000
1500
(63.1)
(94.6)
Evaporator Flow Rate
2000
(126.2)
2500 gpm
(157.7) (L/s)
NOTE: The table above represents pressure drops only. The table does not imply that the chiller can be properly applied over
the entire range of evaporator water flow rates represented.
a30-5013
25
Performance data (cont)
30XW325-400 EVAPORATOR MARINE WATERBOX
(kPa) ft wg
(119.4) 40.00
3 pass
(104.4) 35.00
1 pass
Pressure Drop
2 pass
(89.5) 30.00
(74.6) 25.00
(59.7) 20.00
(44.8) 15.00
(29.8) 10.00
(14.9) 5.00
(0) 0.00
0
(0)
500
(31.5)
1000
1500
2000
(63.1)
(94.6)
(126.2)
Evaporator Flow Rate
2500
(157.7)
3000 gpm
(189.3) (L/s)
NOTE: The table above represents pressure drops only. The table does not imply that the chiller can be properly applied over
the entire range of evaporator water flow rates represented.
A30-4691
30XW150-200 EVAPORATOR NIH
(kPa)
ft wg
(119.4) 40.00
3 pass
2 pass
(104.4) 35.00
Pressure Drop
1 pass
(89.5) 30.00
(74.6) 25.00
(59.7) 20.00
(44.8) 15.00
(29.8) 10.00
(14.9)
5.00
(0)
0.00
0
(0)
500
(31.5)
1000
(63.1)
1500
(94.6)
2000 gpm
(126.2) (L/s)
Evaporator Flow Rate
LEGEND
NIH — Nozzle-In-Head
NOTE: The table above represents pressure drops only. The table does not imply that the chiller can be properly applied over the
entire range of evaporator water flow rates represented.
a30-4834
26
30XW250-300 EVAPORATOR NIH VICTUALIC
(kPa) ft wg
(119.4) 40.00
2 pass
3 pass
(104.4) 35.00
(89.5) 30.00
Pressure Drop
1 pass
(74.6) 25.00
(59.7) 20.00
(44.8) 15.00
(29.8) 10.00
(14.9)
5.00
(0)
0.00
0
500
1000
1500
2000
(0)
(31.5)
(63.1)
(94.6)
(126.2)
2500
gpm
(157.7) (L/s)
Evaporator Flow Rate
LEGEND
NIH — Nozzle-In-Head
NOTE: The table above represents pressure drops only. The table does not imply that the chiller can be properly applied over the
entire range of evaporator water flow rates represented.
a30-5114
30XW250-300 EVAPORATOR NIH FLANGE
(kPa) ft wg
(119.4) 40.00
3 pass
2 pass
1 pass
(104.4) 35.00
Pressure Drop
(89.5) 30.00
(74.6) 25.00
(59.7) 20.00
(44.8) 15.00
(29.8) 10.00
(14.9) 5.00
(0) 0.00
0
(0)
500
(31.5)
1000
1500
(63.1)
(94.6)
Evaporator Flow Rate
2000
(126.2)
2500 gpm
(157.7) (L/s)
LEGEND
NIH — Nozzle-In-Head
NOTE: The table above represents pressure drops only. The table does not imply that the chiller can be properly applied over the
entire range of evaporator water flow rates represented.
a30-5115
27
Performance data (cont)
30XW325-400 EVAPORATOR NIH FLANGE
(kPa) ft wg
(119.4) 40.00
Pressure Drop
1 pass
3 pass
(104.4) 35.00
2 pass
(89.5) 30.00
(74.6) 25.00
(59.7) 20.00
(44.8) 15.00
(29.8) 10.00
(14.9) 5.00
(0) 0.00
0
(0)
500
(31.5)
LEGEND
NIH — Nozzle-In-Head
1000
1500
(63.1)
(94.6)
Evaporator Flow Rate
2000 gpm
(126.2) (L/s)
NOTE: The table above represents pressure drops only. The table does not imply that the chiller can be properly applied over the
entire range of evaporator water flow rates represented.
A30-4692
30XW325-400 EVAPORATOR NIH VICTAULIC
(kPa)
ft wg
(119.4) 40.00
(104.4) 35.00
Pressure Drop
2 pass
(89.5) 30.00
(74.6) 25.00
(59.7) 20.00
(44.8) 15.00
(29.8) 10.00
(14.9)
5.00
(0)
0.00
0
(0)
LEGEND
NIH — Nozzle-In-Head
500
(31.5)
1000
1500
2000
(63.1)
(94.6)
(126.2)
Evaporator Flow Rate
2500
(157.7)
3000 gpm
(189.3) (L/s)
A30-4693
NOTE: The table above represents pressure drops only. The table does not imply that the chiller can be properly applied over the
entire range of evaporator water flow rates represented.
28
30XW150-200 CONDENSER MARINE WATERBOX
(kPa)
ft wg
(119.4) 40.00
(104.4) 35.00
2 pass
Pressure Drop
(89.5) 30.00
(74.6) 25.00
1 pass
(59.7) 20.00
(44.8) 15.00
(29.8) 10.00
(14.9)
5.00
(0)
0.00
0
(0)
500
(31.5)
1000
1500
(63.1)
(94.6)
Condenser Flow Rate
2000
(126.2)
gpm
(L/s)
NOTE: The table above represents pressure drops only. The table does not imply that the chiller can be properly applied over the
entire range of condenser water flow rates represented.
A30-4835
30XW250-300 CONDENSER MARINE WATERBOX
(kPa) ft wg
(119.4) 40.00
(104.4) 35.00
2 pass
Pressure Drop
(89.5) 30.00
(74.6) 25.00
1 pass
(59.7) 20.00
(44.8) 15.00
(29.8) 10.00
(14.9)
5.00
(0)
0.00
0
(0)
500
(31.5)
1000
1500
(63.1)
(94.6)
Condenser Flow Rate
2000
(126.2)
2500 gpm
(157.7) (L/s)
NOTE: The table above represents pressure drops only. The table does not imply that the chiller can be properly applied over the
entire range of condenser water flow rates represented.
A30-5116
29
Performance data (cont)
30XW325-400 CONDENSER MARINE WATERBOX
(kPa) ft wg
(119.4) 40.00
(104.4) 35.00
1 pass
Pressure Drop
2 pass
(89.5) 30.00
(74.6) 25.00
(59.7) 20.00
(44.8) 15.00
(29.8) 10.00
(14.9) 5.00
(0) 0.00
0
(0)
500
(31.5)
1000
(63.1)
1500
(94.6)
2000
(126.2)
2500
(157.7)
3000
(189.3)
3500 gpm
(220.8) (L/s)
Condenser Flow Rate
NOTE: The table above represents pressure drops only. The table does not imply that the chiller can be properly applied over the
entire range of condenser water flow rates represented.
A30-4694
30XW150-200 CONDENSER NIH FLANGE
(kPa)
ft wg
(119.4) 40.00
(104.4) 35.00
2 pass
Pressure Drop
(89.5) 30.00
1 pass
(74.6) 25.00
(59.7) 20.00
(44.8) 15.00
(29.8) 10.00
(14.9)
5.00
(0)
0.00
0
(0)
LEGEND
NIH — Nozzle-In-Head
500
(31.5)
1000
(63.1)
1500
(94.6)
2000
(126.2)
gpm
(L/s)
Condenser Flow Rate
A30-4836
NOTE: The table above represents pressure drops only. The table does not imply that the chiller can be properly applied over the entire
range of evaporator water flow rates represented.
30
30XW250-300 CONDENSER NIH FLANGE
(kPa) ft wg
(119.4) 40.00
(104.4) 35.00
1 pass
Pressure Drop
2 pass
(89.5) 30.00
(74.6) 25.00
(59.7) 20.00
(44.8) 15.00
(29.8) 10.00
(14.9)
5.00
(0)
0.00
0
(0)
500
(31.5)
1000
(63.1)
1500
(94.6)
2000
(126.2)
2500 gpm
(157.7) (L/s)
Condenser Flow Rate
LEGEND
NIH — Nozzle-In-Head
A30-5117
NOTE: The table above represents pressure drops only. The table does not imply that the chiller can be properly applied over the entire
range of evaporator water flow rates represented.
(kPa) ft wg
30XW325-400 CONDENSER NIH FLANGE
(119.4) 40.00
Pressure Drop
(104.4) 35.00
2 pass
1 pass
(89.5) 30.00
(74.6) 25.00
(59.7) 20.00
(44.8) 15.00
(29.8) 10.00
(14.9) 5.00
(0) 0.00
0
(0)
LEGEND
NIH — Nozzle-In-Head
500
(31.5)
1000
(63.1)
1500
(94.6)
2000
(126.2)
2500 gpm
(157.7) (L/s)
Condenser Flow Rate
A30-4695
NOTE: The table above represents pressure drops only. The table does not imply that the chiller can be properly applied over the entire
range of evaporator water flow rates represented.
31
Performance data (cont)
30XW150-200 CONDENSER NIH VICTAULIC
(kPa)
ft wg
(119.4) 40.00
(104.4) 35.00
2 pass
Pressure Drop
(89.5) 30.00
(74.6) 25.00
(59.7) 20.00
(44.8) 15.00
(29.8) 10.00
(14.9)
5.00
(0)
0.00
0
(0)
500
(31.5)
1000
(63.1)
1500
(94.6)
2000
(126.2)
gpm
(L/s)
Condenser Flow Rate
LEGEND
NIH — Nozzle-In-Head
A30-4837
NOTE: The table above represents pressure drops only. The table does not imply that the chiller can be properly applied over the
entire range of evaporator water flow rates represented.
30XW250-300 CONDENSER NIH VICTAULIC
(kPa) ft wg
(119.4) 40.00
(104.4) 35.00
Pressure Drop
2 pass
(89.5) 30.00
(74.6) 25.00
1 pass
(59.7) 20.00
(44.8) 15.00
(29.8) 10.00
(14.9)
5.00
(0)
0.00
0
(0)
500
(31.5)
1000
(63.1)
1500
(94.6)
2000
(126.2)
2500
(157.7)
gpm
(L/s)
Condenser Flow Rate
LEGEND
NIH — Nozzle-In-Head
A30-5118
NOTE: The table above represents pressure drops only. The table does not imply that the chiller can be properly applied over the
entire range of evaporator water flow rates represented.
32
30XW325-400 CONDENSER NIH VICTAULIC
(kPa) ft wg
(119.4) 40.00
(104.4) 35.00
Pressure Drop
2 pass
(89.5) 30.00
(74.6) 25.00
(59.7) 20.00
(44.8) 15.00
(29.8) 10.00
(14.9) 5.00
(0) 0.00
0
(0)
500
(31.5)
1000
(63.1)
1500
(94.6)
2000
(126.2)
2500
(157.7)
3000
(189.3)
3500 gpm
(220.8) (L/s)
Condenser Flow Rate
LEGEND
NIH — Nozzle-In-Head
A30-4696
NOTE: The table above represents pressure drops only. The table does not imply that the chiller can be properly applied over the
entire range of evaporator water flow rates represented.
33
Controls
Microprocessor
The chiller microprocessor controls overall unit operation
and controls a number of processes simultaneously. These
processes include internal timers, reading inputs, analog to
digital conversions, display control, diagnostic control, output relay control, demand limit, capacity control, head
pressure control, and temperature reset. Some processes
are updated almost continuously, others every 2 to 3 seconds, and some every 30 seconds. The microprocessor
routine is started by switching the emergency ON-OFF
switch to the ON position.
Control sequence
Pre-start — After control switches on, the prestart takes
place. The microprocessor checks itself, and if configured,
energizes the evaporator and condenser pumps to the
internal (or CCN) time schedule (or input occupied signal
from an external system) and waits for temperature to
stabilize.
Start-up — The chiller will receive a call for cooling when
chilled fluid temperature increases above the set point plus
a dead band, or if an override start command is received.
If flow has been proven, the first compressor starts 1 to 3
minutes after the call for cooling. The controlled pulldown
feature limits compressor loading on start up to reduce
demand on start up and unnecessary compressor usage.
Capacity control — On the first call for cooling, the
microprocessor starts the compressor on the lead circuit.
The microprocessor maintains leaving fluid temperature
set point through intelligent positioning of the slide valve.
As the load increases above the compressor's capacity, the
compressor on the lag circuit is started and both compressors are staged together.
Maintaining set point — The control monitors entering
and leaving chilled water temperature to anticipate
changes in cooling load. The speed at which capacity is
added or reduced is controlled by temperature deviation
from set point and rate of temperature change of the
chilled fluid. The basic logic for determining when to add
or remove capacity is a time band integration of deviation
from set point plus rate of change of leaving fluid temperature. When leaving-fluid temperature is close to the set
point and slowly moving closer, logic prevents additional
capacity. Accuracy depends on loop volume, loop flow
rate, load and condenser water temperatures.
Return fluid temperature compensation — No adjustment for cooling range or evaporator flow rate is required
because the control automatically compensates for cooling
range by measuring both return fluid temperature and leaving fluid temperature.
Low temperature override — This feature prevents
LWT (leaving water temperature) from overshooting the
set point to prevent nuisance low suction temperature
trips.
High temperature override — This feature allows the
chiller to add capacity quickly during rapid load variations.
Temperature reset (chilled water reset) — When
latent loads in the conditioned space are reduced, it may be
possible to reset the leaving chilled water temperature set
point to a warmer temperature thereby reducing
34
compressor power usage and saving energy. Three reset
options are offered. With any chilled water reset application, humidity control should be considered since higher
coil temperatures will reduce latent capacity. For details on
applying a reset option, refer to the Controls, Start-Up,
Operation, Service and Troubleshooting guide.
Return fluid temperature reset — This feature
increases LWT set point as return (entering) fluid temperature decreases (indicating load decrease). This option may
be used where return fluid temperature provides accurate
load indication. No additional hardware is required.
Outdoor-air temperature reset — This feature
increases LWT set point as outdoor ambient temperatures
decreases (indicating load decrease). This reset should only
be applied where outdoor ambient temperature is an indication of load. A field-installed thermistor is required.
Space temperature reset — This feature increases the
LWT as space temperature decreases (indicating load
decrease). This reset should only be applied where space
temperature is an indication of load. A field-supplied
thermistor is required.
Minimum load control — The main base board (MBB)
responds to the supply chilled water temperature to match
cooling load requirements and controls the minimum load
control valve. The minimum load control valve allows hot
gas to pass directly into the evaporator circuit permitting
the unit to operate at lower loads with less compressor
cycling. Minimum load control should be given consideration when operation is anticipated below the minimum
unloading step.
Pull down control — If pulldown control has been
selected (adjustable setting), no additional capacity is added
as long as the difference between fluid temperature and the
set point is greater than 4  F (2.2  C) and rate of change
in leaving water temperature is greater than the 90 seconds since the last capacity change, compressors will continue to run unless a safety device trips. This prevents rapid
cycling and also helps return oil during short operating
periods.
Maximum operating pressure control — If the entering fluid temperature is 95 F (35 C) and the saturated suction temperature is 50 F (10 C) or higher, the maximum
operating pressure (MOP) feature limits the suction to keep
the chiller online. The control automatically starts the
chiller in the unloaded state to eliminate the potential of
compressor overload due to high head pressure or low suction pressure.
Equalized run time — The controller will equalize run
time on each circuit through the lead/lag feature (sizes
325-400 only). If a circuit becomes disabled, the control
will automatically set the active circuit to lead, keeping the
chiller online at a reduced capacity.
Sensors — Thermistors are used to control temperature
sensing inputs to the microprocessor. No additional sensors are required for leaving chilled water temperature or
return water reset.
The following sensors can be used on 30XW units:
• Evaporator leaving fluid temperature (T1)
• Evaporator entering fluid temperature (T2)
• Suction gas temperature (T4 - Circuit A, T7 - Circuit B)
• Economizer gas temperature (T5 - Circuit A, T11 Circuit B) (sizes 325-400 only)
• Space temperature (T8)
• Discharge gas temperature (T9 - Circuit A, T10 Circuit B)
• Condenser entering fluid temperature (T12)
• Condenser leaving fluid temperature (T13)
• Compressor motor temperature
Pressure — There are 3 (sizes 150, 325) or 4 (sizes 175,
200, 250, 275, 300, 350, 400) refrigerant pressure transducers used in each circuit for sensing suction, discharge,
oil, and economizer (sizes 175, 200, 250, 275, 300, 350,
400) pressure. The microprocessor uses these inputs to
control capacity. Evaporator suction and saturated condensing temperature are calculated from evaporator and
condenser pressure.
Electronic expansion valve (EXV) — The EXV controls refrigerant flow to the evaporator for different operating conditions by varying an orifice size to increase or
decrease the flow area through the valve based on microprocessor input. The orifice is positioned by a stepper
motor through approximately 3,600 discrete steps and is
monitored every 3 seconds.
Safeties
Abnormal conditions — All control safeties in the chiller
operate through compressor protection board, control
relays or the chiller microprocessor. Loss of feedback signal to the MBB (main base board) will cause the compressor(s) to shut down. For other safeties, the microprocessor
makes appropriate decision to shut down a compressor
due to a safety trip or bad sensor reading and displays the
appropriate failure code on the display. Chiller holds in
safety mode until reset; it then reverts to normal control
when the unit is reset.
Low-pressure safety — This safety will shut down the
chiller and display the appropriate alarm code if the system
pressure drops below configured minimums.
High-pressure safety — This safety will shut down the
chiller and display the appropriate alarm code if the compressor discharge pressure increases above configured
maximums.
Compressor anti-cycling — This feature monitors compressor starts to limit compressor cycling during periods of
low load.
Loss of flow protection — This feature will shut off the
chiller if the detected flow is below the configured minimum flow rate. Thermal dispersion flow switches are
installed in 30XW chillers to confirm evaporator flow.
Sensor failures — The microprocessor monitors temperature and pressure sensors to ensure readings are
within the expected range. Loss of communication to a
sensor or readings outside of the expected range will
prompt corrective action.
Other safeties — Other safety features include electric
overload, thermal overload protection, oil pressure, loss of
refrigerant charge, loss of phase protection, reverse
rotation protection (prevents compressor start), current
imbalance, and ground current.
Demand limit function — This function can be used to
limit the total power draw of the chiller to a user-defined
set point. The optional energy management module is
required and can provide either 2-step or 4 to 20 mA
demand limit. This optional electronic board interfaces
with the microprocessor to control the number of compressors operating and their operating capacity to limit
power consumption to the user specified value.
The microprocessor can control the number of compressors operating and their operating capacity to limit
power consumption to the user specified value.
Diagnostics — The microprocessor includes a service
test feature that displays the condition of each sensor and
switch in the chiller and allows the observer to check for
proper operation of the compressors. Refer to the Controls, Start Up, Operation, Service and Troubleshooting
guide for further information.
Default settings — To facilitate quick start-ups, 30XW
chillers are pre-configured with a default setting that
assumes stand-alone operation with a 44 F (6.6 C) chilled
water set point. Configuration settings will be based on any
options or accessories included with the unit at the time of
manufacturing. Date and time are set to U.S.A. Eastern
Time zone and will need reconfiguring based on location
and local time zone. If operation based on occupancy
schedule is desired, the schedule must be set during
installation.
Additional information — Detailed information on controls and operation is available in the Controls, Start-Up,
Operation, Service and Troubleshooting guide included
with each unit. Packaged Service Training programs are
also available. Contact your local Carrier representative for
more information.
35
Typical control wiring schematic
30XW UNIT CONTROL WIRING SCHEMATIC
a30-4912
AWG
CB
COM
EMM
EQUIP GND
FIOP
MLV
—
—
—
—
—
—
—
LEGEND
American Wire Gage
Circuit Breaker
Communication Port
Energy Management Module
Equipment Ground
Factory-Installed Option
Minimum Load Valve
NEC
PMP
PMPI
TB
—
—
—
—
National Electrical Code
Chilled Water Pump
Chilled Water Pump Interlock
Terminal Block
Field Power Wiring
Field Control Wiring
Factory-Installed Wiring
NOTES:
1. Factory wiring is in accordance with UL 1995 standards. Field modifications or additions must be in compliance with all applicable codes.
2. Wiring for main field supply must be rated 75C minimum. Use copper for all
units. Incoming wire size range for the terminal block is #4 AWG to 500
kcmil for single point power (two conductors per phase). Incoming wire
size range for the terminal blocks for dual point power option is
#4
AWG to 500 kcmil (one conductor per phase). Incoming wire size range for
200/300-v models is 3/0 to 500 kcmil for single point power (one conductor
per phase).
3. Terminals 9 and 10 of TB5 are for field external connections for remote onoff. The contacts must be rated for dry circuit application capable of handling a 24-vac load up to 50 mA.
4. Terminals 1 and 2 of TB5 are for external connections of chilled water
pump interlock. The contacts must be rated for dry circuit application capable of handling a 24-vac load up to 50 mA.
5. Terminals 11 and 13 of TB5 are for control of chilled water pump 1 (PMP
1) starter. Terminals 15 and 13 of TB5 are for control of chilled water pump
2 (PMP 2) starter. Remove factory-installed jumper when using pump
interlock. The maximum load allowed for the chilled water pump relay is
5-va sealed, 10-va inrush at 24-v. Field power supply is not required.
36
6. For control of chilled water pumps, a set of normally open contacts rated
for dry circuit application must be supplied from field-supplied pump starter
relay. Connect contacts directly to connector at main base board channel
18.
7. Terminals 12 and 13 of TB5 are for an alarm relay. The maximum load
allowed for the alarm relay is 10-va sealed, 25-va inrush at 24-v. Field
power supply is not required.
8. Make appropriate connections to TB6 as shown for energy management
board options. The contacts for occupancy override, demand limit, and ice
done options must be rated for dry circuit application capable for handling
a 24-vac load up to 50 mA.
9. Terminal blocks TB5 and TB6 are located in the display panel box for all
units. Refer to certified dimensional drawing for each unit to get the exact
locations.
10. Refer to certified dimensional drawings for exact locations of the main
power and control power entrance locations.
11. For control of condenser pump, connect field-supplied relay (max 5-va
sealed, 10-va inrush at 24-v) directly to terminals 3 and 4 (channel 22) of
J2C on the main base board.
12. Terminals 1 and 2 of TB7 provide 0 to 10-vdc signal for head pressure control. Refer to controls manual for application with field-supplied water regulating valve.
Application data
Unit storage
Evaporator flow range
Store chiller and starter indoors, protected from construction dirt and moisture. Inspect under shipping tarps, bags,
or crates to be sure water has not collected during transit.
Keep protective shipping covers in place until machine is
ready for installation. Assure that the inside of the protective cover meets the following criteria:
• Temperature is between 40 F (4.4 C) and 120 F
(48.9 C)
• Relative humidity is between 10% and 80% (noncondensing)
For minimum and maximum evaporator flow rates please
see the Evaporator and Condenser Flow Rates table on
page 24. A high flow rate is generally limited by the maximum pressure drop that can be tolerated by the unit. The
30XW chillers are designed for a full load temperature rise
of 5 to 20 F (2.8 to 11.1 C). See the Carrier selection program for pressure drop values and performance.
Chiller location
Unit should be located indoors on a level surface in an area
with temperatures between 50 F (10 C) and 104 F (40 C).
Clearance should be provided around the unit for service
and local code requirements. See dimensional drawings for
specific unit clearance requirements. Consideration should
be given to using rubber-in-shear pads. For applications
other than ground to slab, it is recommended spring isolators are used to minimize structure borne transmission.
Acoustic consideration should be given near sound sensitive areas.
Relief valve vent lines:
1. Vent per local code requirements.
2. Each chiller has one relief valve per circuit on the
evaporator, 2 per circuit on the condenser, and one
relief valve on each compressor discharge line.
Minimum evaporator flow
When system design conditions require a lower flow (or
higher temperature rise) than the minimum allowable evaporator flow rate, please follow the recommendations
below.
• Multiple smaller chillers may be applied in series, each
providing a portion of the design temperature rise.
• Try increasing the number of passes in the evaporator
at design conditions (1, 2, or 3 passes available).
• Evaporator fluid may be recirculated to raise the flow
rate to the chiller. The mixed temperature entering the
evaporator must be maintained to a minimum of at least
5  F (2.8  C) above the leaving chilled fluid temperature and a maximum of no more than 20  F (11.1 C)
above the leaving chilled fluid temperature.
NOTE: Recirculation flow is shown below.
Maximum evaporator flow
RECIRCULATION FLOW
CHILLER EVAPORATOR
Strainers
A screen strainer with minimum screen size of 20 mesh
must be installed within 10 ft (3 m) of the inlet pipe connection to both the evaporator and condenser to prevent
debris from damaging internal tubes of the evaporator. The
pump strainer shall not be used to meet this requirement.
a30-4698
Oversizing chillers
Oversizing chillers by more than 15% at design conditions
should be avoided as the system operating efficiency is
adversely affected (resulting in greater or excessive electrical demand). When future expansion of equipment is anticipated, install a single chiller to meet present load
requirements and add a second chiller to meet the additional load demand. It is also recommended that 2 smaller
chillers be installed where operation at minimum load is
critical. The operation of a smaller chiller loaded to a
greater percentage over minimum is preferred to operating
a larger chiller at or near its minimum recommended value.
Operation at its minimum load should only be done intermittently, not for long periods of time. Minimum load control should not be used as a means to allow oversizing
chillers.
The maximum evaporator flow (approximately 5  F
(2.8  C) rise results in a practical maximum pressure drop
through the evaporator. Optional marine waterboxes may
help reduce pressure drop by a small amount. If this is
insufficient, a return fluid may bypass the evaporator to
keep the pressure drop through the evaporator within
acceptable limits. This permits a higher delta T with lower
fluid flow through the evaporator and mixing after the
evaporator.
NOTE: Bypass flow is shown below.
BYPASS FLOW
CHILLER EVAPORATOR
Evaporator water temperature
Maximum leaving fluid temperature for the unit is 60 F
(15.5 C). The unit can start and pull down with up to 95 F
(35 C) entering fluid temperature. For sustained operation,
it is recommended the fluid temperature not exceed 70 F
(21.1 C). Water flowing through the evaporator should
never exceed 100 F (37.8 C). Minimum leaving water temperature is 40 F (4.4 C).
a30-4699
37
Application data (cont)
Variable evaporator flow rates
Evaporator and condenser freeze protection
Variable flow rates may be applied to a standard chiller.
The unit will, however, attempt to maintain a constant
leaving fluid temperature. In such cases minimum flow at
design conditions must be in excess of minimum flow given
in the Evaporator and Condenser Flow Rates table, and
minimum loop volume must be as defined below. Combined flow rate and change in load must not change by
more than 10% per minute. Additional loop volume may
be necessary to ensure fluid is not quickly recirculated back
to the chiller before the chiller has adjusted to the previous
change in flow rate and load condition. At part loads, evaporator flow rates as low as 67% of the minimum flow listed
in the Evaporator and Condenser Flow Rates table are
acceptable.
The solution concentration must be sufficient to protect the
chilled water loop to a freeze protection (first crystals)
concentration of at least 15 F (8.3 C) below the leaving
fluid temperature set point. If chiller fluid lines are in an
area where ambient conditions fall below 34 F (1.1 C), it is
recommended that an antifreeze solution be added to protect the unit and fluid piping to a temperature 15  F
(8.3  C) below the lowest anticipated temperature. For
corrections to performance, refer to the chiller selection
program.
NOTE: Use only antifreeze solutions approved for heat
exchanger duty. Use of automotive antifreeze is not recommended because of the fouling that can occur once their
relatively short-lived inhibitors break down.
Water loop volume
Multiple chillers
The loop volume in circulation must equal or exceed 3 gal.
per nominal ton (3.2 L per kW) of cooling for temperature
stability and accuracy in normal air-conditioning applications. In process cooling applications, there should be 6 to
10 gallons per ton (6.5 to 10.8 L per kW). To achieve this
loop volume, it is often necessary to install a tank in the
loop. The tank should be baffled to ensure there is no stratification, and that water (or brine) entering the tank is adequately mixed with liquid in the tank. See Tank Installation
drawing.
Where multiple chillers are required, or where standby
capability is desired, chillers may be installed in parallel.
Units may be of the same or different sizes. However,
evaporator flow rates must be balanced according to the
recommendations of each chiller to ensure proper flow.
Unit software is capable of controlling two units as a single plant. Refer to the Controls, Start-Up, Operation, Service and Troubleshooting guide for further details.
TANK INSTALLATION
The chiller on board controller allows 2 chillers (piped in
parallel or series) to operate as a single chilled water plant
with standard control functions coordinated through the
master chiller controller. This feature requires a communication link between the 2 chillers. There are several advantages to this type of control:
• Redundancy (multiple circuits)
• Better low load control (lower tonnage capability)
• Lower rigging lift weights (2 machines rather than one
large machine)
• Chiller lead-lag operation (evens the wear between the
two machines)
GOOD
BAD
Dual chiller control
Parallel chiller operation
BAD
a30-3185
GOOD
Evaporator fouling factor
The fouling factor used to calculate tabulated ratings is
0.0001 sq ft  hr F/Btu (0.000018 sq m   C/W). As
fouling factor is increased, both unit capacity and EER
(Energy Efficiency Ratio) decrease. The impact of the fouling factor on performance varies significantly with chiller
size and application conditions. Ratings must be determined by the Carrier selection program.
Condenser minimum flow rate
The minimum condenser flow rate is shown in the Evaporator and Condenser Flow Rates table on page 24. If the
condenser flow rate is below the minimum rate shown, try
increasing the number of condenser passes (1 or 2 pass
available).
38
Parallel chiller operation is the recommended option for
dual chiller control. In this case, each chiller must control
its own dedicated pumps or isolation valves. Balancing
valves are recommended to ensure the proper flow to each
chiller. Two field-supplied and installed dual chiller leaving
water temperature sensors are required (one for each module) for this function to operate properly.
Consider adding additional isolation valves to isolate
each chiller to allow for service on the machine, and still
allow for partial capacity from the other chiller.
Series chiller operation
Series chiller operation is an alternate control method supported by the chiller control system. Certain applications
might require that two chillers be connected in series. For
nominal 10 F (5.6 C) evaporator ranges, use the one-pass
heat exchanger options to reduce fluid side pressure drop.
Use the standard pass arrangement for low flow, high temperature rise applications. Two field-supplied and installed
dual chiller leaving water temperature sensors are required
(one for each module) for this function to operate properly.
Consider adding additional piping and isolation valves to
isolate each chiller to allow for service on the machine, and
still allow for partial capacity from the other chiller.
Even if evaporators are piped in series, parallel condenser piping should be considered on constant speed
chillers to maximize capacity and efficiency while minimizing condenser pressure drop and saturated condensing
temperatures. If the condensers are piped in series, ensure
that the leaving fluid temperature does not exceed 118 F
(47.8 C) for standard units, or 140 F (60 C) for high condensing or heat machine condensers.
Electric utility interests
Energy management — Use of energy management
practices can significantly reduce operating costs, especially during off-peak modes of operation. Demand limiting
and temperature reset are two techniques for accomplishing efficient energy management. See Demand Limiting
(also called load shedding) section below for further details.
Demand limiting (load shedding) — When a utility's
demand for electricity exceeds a certain level, loads are
shed to keep electricity demand below a prescribed maximum level. The energy management module (EMM) option
can be added to accomplish this reduction. Demand may
be limited on the unit by resetting water temperature, or by
unloading the chiller to a given predetermined percentage
of the load. Demand limit may also be driven by an external 4 to 20 mA signal. These features require a signal from
an intelligent central control.
Duty cycling — Duty cycling will cycle an electrical load
at regular intervals regardless of need. This reduces the
electrical demand by "fooling" demand measuring devices.
Duty cycling of the entire compressor is NOT recommended since motor windings and bearing life will suffer
from constant cycling.
Remote on-off control — Remote on-off control may be
applied by hard-wired connection (see the Controls,
Start-Up, Operation, Service and Troubleshooting guide)
or by connection to the Carrier Comfort Network® (CCN)
system.
39
40
CONDENSER
WATER
OUTLET
CONDENSER
WATER
INLET
FROM
COOLING
LOAD
TO
COOLING
LOAD
SHUT-OFF
VALVE
SHUT-OFF
VALVE
BALANCING
VALVE
EVAPORATOR
SHUT-OFF
VALVE
VIBRATION
ISOLATION
PRESSURE
GAGE
BALANCING
VALVE
STRAINER
INLET
VIBRATION
ISOLATION
VIBRATION
ISOLATION
VENT
OUTLET
INSULATE EVAPORATOR
HEADS, BOTH ENDS
DRAIN
CONDENSER
30XW
CONTROL POWER
SUPPLY *
*Control power supply is not required for chillers ordered with the control power transformer option.
NOTES:
1. Wiring and piping shown are for general point-of-connection only and are not intended to show details for
a specific installation. Certified field wiring and dimensional diagrams are available upon request. The
30XW units should be installed using certified drawings.
2. All wiring must comply with applicable codes.
3. Refer to Carrier System Design Manual for details regarding piping techniques.
4. Piping, wiring, switches, valves, vent gages, strainers, drain piping, drain, and vibration isolation are all
field supplied.
5. Water connections are shown on left side (discharge end) of control box in this figure. Actual connections
can be on either side according to chiller configuration ordered.
MAIN POWER
SUPPLY
TO CONDENSER
WATER PUMP
TO CHILLED
WATER PUMP
TYPICAL PIPING AND WIRING FOR 30XW150-300 EVAPORATOR AND CONDENSER
LEGEND
Field Wiring
Field Piping
Typical piping and wiring
a30-4901
SHUT-OFF
VALVE
BALANCING
VALVE
CONDENSER
WATER
OUTLET
CONDENSER
WATER
INLET
FROM
COOLING
LOAD
TO
COOLING
LOAD
SHUT-OFF
VALVE
BALANCING
VALVE
STRAINER
SHUT-OFF
VALVE
VIBRATION
ISOLATION
PRESSURE
GAGE
VIBRATION
ISOLATION
VIBRATION
ISOLATION
VENT
INLET
OUTLET
INSULATE EVAPORATOR
HEADS, BOTH ENDS
EVAPORATOR
DRAIN
CONTROL POWER
SUPPLY *
MAIN POWER
SUPPLY
CONDENSER
30XW
*Control power supply is not required for chillers ordered with the control power transformer option.
NOTES:
1. Wiring and piping shown are for general point-of-connection only and are not intended to show details for a
specific installation. Certified field wiring and dimensional diagrams are available upon request. The 30XW
units should be installed using certified drawings.
2. All wiring must comply with applicable codes.
3. Refer to Carrier System Design Manual for details regarding piping techniques.
4. Piping, wiring, switches, valves, vent gages, strainers, drain piping, drain, and vibration isolation are all
field supplied.
5. Water connections are shown on left side (discharge end) of control box in this figure. Actual connections
can be on either side according to chiller configuration ordered.
TO CONDENSER
WATER PUMP
TO CHILLED
WATER PUMP
TYPICAL PIPING AND WIRING FOR 30XW325-400 EVAPORATOR AND CONDENSER
LEGEND
Field Wiring
Field Piping
a30-4700
41
Electrical data
STANDARD SINGLE INPUT POWER CONFIGURATION
30XW UNIT
SIZE
150
150 HM
175
175 HM
200
200 HM
250
275
300
ICF
HM
LRA
MCA
MOCP
RLA
WD
XL
—
—
—
—
—
—
—
—
UNIT VOLTAGE
Supplied
V-Ph-Hz
Min
Max
200-3-60
187
220
230-3-60
207
253
380-3-60
342
418
460-3-60
414
506
575-3-60
518
633
200-3-60
187
220
230-3-60
207
253
380-3-60
342
418
460-3-60
414
506
575-3-60
518
633
200-3-60
187
220
230-3-60
207
253
380-3-60
342
418
460-3-60
414
506
575-3-60
518
633
200-3-60
187
220
230-3-60
207
253
380-3-60
342
418
460-3-60
414
506
575-3-60
518
633
200-3-60
187
220
230-3-60
207
253
380-3-60
342
418
460-3-60
414
506
575-3-60
518
633
200-3-60
187
220
230-3-60
207
253
380-3-60
342
418
460-3-60
414
506
575-3-60
518
633
200-3-60
187
220
230-3-60
207
253
380-3-60
342
418
460-3-60
414
506
575-3-60
518
633
200-3-60
187
220
230-3-60
207
253
380-3-60
342
418
460-3-60
414
506
575-3-60
518
633
200-3-60
187
220
230-3-60
207
253
380-3-60
342
418
460-3-60
414
506
575-3-60
518
633
NO. POWER
SUPPLY
CONDUCTORS
MCA
6
6
3
3
3
6
6
3
3
3
6
6
3
3
3
6
6
3
3
3
6
6
3
3
3
6
6
6
3
3
6
6
3
3
3
9
6
6
3
3
9
6
6
3
3
511.3
443.9
270.9
222.8
176.3
649.0
565.8
341.4
283.8
226.0
511.3
443.9
270.9
222.8
176.3
649.0
565.8
341.4
283.8
226.0
578.5
501.6
302.9
251.6
203.5
738.8
642.6
389.4
322.1
258.0
687.5
597.8
360.6
299.6
238.8
761.3
661.9
399.0
331.8
264.4
812.5
706.8
427.9
354.1
280.5
LEGEND
Maximum Instantaneous Current Flow
Heat Machine Units
Locked Rotor Amps
Minimum Circuit Ampacity (for wire sizing)
Maximum Overcurrent Protection
Rated Load Amps
Wye-Delta Start
Across-the-Line Start
NOTES:
1. Each main power source must be supplied from a field-supplied fused electrical
service with a (factory-installed or field-installed) disconnect located in sight from
the unit.
42
800
700
450
400
300
1000
1000
600
500
400
800
700
450
400
300
1000
1000
600
500
400
1000
800
500
450
350
1200
1000
700
500
450
1200
1000
600
500
400
1200
1000
700
500
450
1200
1200
700
600
500
CONTROL CIRCUIT
ICF
MOCP
WD
938.0
816.0
494.0
408.0
326.0
1329.0
1156.0
700.0
578.0
462.0
938.0
816.0
494.0
408.0
326.0
1329.0
1156.0
700.0
578.0
462.0
938.0
816.0
494.0
408.0
326.0
1329.0
1156.0
700.0
578.0
462.0
1329.0
1156.0
700.0
578.0
462.0
1329.0
1156.0
700.0
578.0
462.0
1329.0
1156.0
700.0
578.0
462.0
REC FUSE
SIZE
XL
—
—
1537.0
1270.0
1016.0
—
—
2179.0
1800.0
1440.0
—
—
1537.0
1270.0
1016.0
—
—
2179.0
1800.0
1440.0
—
—
1537.0
1270.0
1016.0
—
—
2179.0
1800.0
1440.0
—
—
2179.0
1800.0
1440.0
—
—
2179.0
1800.0
1440.0
—
—
2179.0
1800.0
1440.0
700
600
350
300
225
800
700
450
350
300
700
600
350
300
225
800
700
450
350
300
700
700
400
350
250
1000
800
500
400
350
1000
800
450
400
300
1000
800
500
400
350
1000
1000
600
450
350
VOLTAGE
1 PH, 60Hz
MCA and
MOCP
115
115
115
115
115
115
115
115
115
115
115
115
115
115
115
115
115
115
115
115
115
115
115
115
115
115
115
115
115
115
115
115
115
115
115
115
115
115
115
115
115
115
115
115
115
20
20
20
20
20
20
20
20
20
20
20
20
20
20
20
20
20
20
20
20
20
20
20
20
20
20
20
20
20
20
20
20
20
20
20
20
20
20
20
20
20
20
20
20
20
2. Control circuit power must be supplied from a separate source through a fieldsupplied disconnect. An optional control transformer may be used to provide control circuit power from the main unit power supply.
3. Maximum instantaneous current flow (ICF) during start-up is the point in the starting sequence where the sum of the LRA for the start-up compressor, plus the total
RLA for all running compressors is at a maximum.
4. Maximum incoming wire size for each terminal block is 500 kcmil.
5. Maximum allowable phase imbalance is: voltage, 2%; amps, 5%.
6. Use copper conductors only.
7. The MOCP is calculated as follows:
MOCP = (2.25) (largest RLA) + the sum of the other RLAs. Size the fuse one size
down from the result. The RLAs are listed on the nameplate.
The recommended fuse size in amps (RFA) is calculated as follows:
RFA = (1.50) (largest RLA) + the sum of the other RLAs. Size the fuse one size up
from the result. The RLAs are listed on the nameplate.
STANDARD SINGLE INPUT POWER CONFIGURATION (CONT)
30XW UNIT
SIZE
325
325 HM
350
350 HM
400
400 HM
ICF
HM
LRA
MCA
MOCP
RLA
WD
XL
—
—
—
—
—
—
—
—
UNIT VOLTAGE
Supplied
V-Ph-Hz
Min
Max
200-3-60
187
220
230-3-60
207
253
380-3-60
342
418
460-3-60
414
506
575-3-60
518
633
200-3-60
187
220
230-3-60
207
253
380-3-60
342
418
460-3-60
414
506
575-3-60
518
633
200-3-60
187
220
230-3-60
207
253
380-3-60
342
418
460-3-60
414
506
575-3-60
518
633
200-3-60
187
220
230-3-60
207
253
380-3-60
342
418
460-3-60
414
506
575-3-60
518
633
200-3-60
187
220
230-3-60
207
253
380-3-60
342
418
460-3-60
414
506
575-3-60
518
633
200-3-60
187
220
230-3-60
207
253
380-3-60
342
418
460-3-60
414
506
575-3-60
518
633
NO. POWER
SUPPLY
CONDUCTORS
9
9
6
6
3
12
9
6
6
6
9
9
6
6
3
12
9
6
6
6
9
9
6
6
3
12
12
6
6
6
MCA
920.3
799.0
487.6
401.0
317.3
1168.2
1018.4
614.5
510.8
406.8
920.3
799.0
487.6
401.0
317.3
1168.2
1018.4
614.5
510.8
406.8
1041.3
902.9
545.2
452.9
366.3
1329.8
1156.7
700.9
579.8
464.4
LEGEND
Maximum Instantaneous Current Flow
Heat Machine Units
Locked Rotor Amps
Minimum Circuit Ampacity (for wire sizing)
Maximum Overcurrent Protection
Rated Load Amps
Wye-Delta Start
Across-the-Line Start
NOTES:
1. Each main power source must be supplied from a field-supplied fused electrical
service with a (factory-installed or field-installed) disconnect located in sight from
the unit.
1200
1000
700
500
450
1600
1200
800
700
500
1200
1000
700
500
450
1600
1200
800
700
500
1200
1200
700
600
500
1600
1600
1000
800
600
CONTROL CIRCUIT
ICF
MOCP
WD
1347.0
1171.1
710.7
586.2
467.0
1848.2
1608.6
973.1
805.0
642.8
1347.0
1171.1
710.7
586.2
467.0
1848.2
1608.6
973.1
805.0
642.8
1400.8
1217.3
736.3
609.3
488.8
1920.0
1670.1
1011.5
835.7
668.4
REC FUSE
SIZE
XL
—
—
1753.7
1448.2
1157.0
—
—
2452.1
2027.0
1620.8
—
—
1753.7
1448.2
1157.0
—
—
2452.1
2027.0
1620.8
—
—
1779.3
1471.3
1178.8
—
—
2490.5
2057.7
1646.4
1200
1000
600
450
400
1600
1200
700
600
500
1200
1000
600
450
400
1600
1200
700
600
500
1200
1200
700
600
450
1600
1600
800
700
600
VOLTAGE
1 PH, 60Hz
MCA and
MOCP
115
115
115
115
115
115
115
115
115
115
115
115
115
115
115
115
115
115
115
115
115
115
115
115
115
115
115
115
115
115
20
20
20
20
20
20
20
20
20
20
20
20
20
20
20
20
20
20
20
20
20
20
20
20
20
20
20
20
20
20
2. Control circuit power must be supplied from a separate source through a fieldsupplied disconnect. An optional control transformer may be used to provide control circuit power from the main unit power supply.
3. Maximum instantaneous current flow (ICF) during start-up is the point in the starting sequence where the sum of the LRA for the start-up compressor, plus the total
RLA for all running compressors is at a maximum.
4. Maximum incoming wire size for each terminal block is 500 kcmil.
5. Maximum allowable phase imbalance is: voltage, 2%; amps, 5%.
6. Use copper conductors only.
7. The MOCP is calculated as follows:
MOCP = (2.25) (largest RLA) + the sum of the other RLAs. Size the fuse one size
down from the result. The RLAs are listed on the nameplate.
The recommended fuse size in amps (RFA) is calculated as follows:
RFA = (1.50) (largest RLA) + the sum of the other RLAs. Size the fuse one size up
from the result. The RLAs are listed on the nameplate.
43
Electrical data (cont)
OPTIONAL DUAL INPUT POWER CONFIGURATION
30XW
UNIT
SIZE
325
325
HM
350
350
HM
400
400
HM
UNIT VOLTAGE
Supplied
V-Ph-Hz
Min Max
200-3-60
187
220
230-3-60
207
253
380-3-60
342
418
460-3-60
414
506
575-3-60
518
633
200-3-60
187
220
230-3-60
207
253
380-3-60
342
418
460-3-60
414
506
575-3-60
518
633
200-3-60
187
220
230-3-60
207
253
380-3-60
342
418
460-3-60
414
506
575-3-60
518
633
200-3-60
187
220
230-3-60
207
253
380-3-60
342
418
460-3-60
414
506
575-3-60
518
633
200-3-60
187
220
230-3-60
207
253
380-3-60
342
418
460-3-60
414
506
575-3-60
518
633
200-3-60
187
220
230-3-60
207
253
380-3-60
342
418
460-3-60
414
506
575-3-60
518
633
NO. POWER
SUPPLY
CONDUCTORS
MCA
6/6
6/6
3/3
3/3
3/3
6/6
6/6
3/3
3/3
3/3
6/6
6/6
3/3
3/3
3/3
6/6
6/6
3/3
3/3
3/3
6/6
6/6
3/3
3/3
3/3
6/6
6/6
6/6
3/3
3/3
511.3/511.3
443.9/443.9
270.9/270.9
222.8/222.8
176.3/176.3
649.0/649.0
565.8/565.8
341.4/341.4
283.8/283.8
226.0/226.0
511.3/511.3
443.9/443.9
270.9/270.9
222.8/222.8
176.3/176.3
649.0/649.0
565.8/565.8
341.4/341.4
283.8/283.8
226.0/226.0
578.5/578.5
501.6/501.6
302.9/302.9
251.6/251.6
203.5/203.5
738.8/738.8
642.6/642.6
389.4/389.4
322.1/322.1
258.0/258.0
ICF
LEGEND
— Maximum Instantaneous Current Flow
HM
— Heat Machine Units
LRA
MCA
MOCP
RLA
WD
XL
—
—
—
—
—
—
Locked Rotor Amps
Minimum Circuit Ampacity (for wire sizing)
Maximum Overcurrent Protection
Rated Load Amps
Wye-Delta Start
Across-the-Line Start
NOTES:
1. Each main power source must be supplied from a field-supplied fused
electrical service with a (factory-installed or field-installed) disconnect
located in sight from the unit.
2. Control circuit power must be supplied from a separate source through a
field-supplied disconnect. An optional control transformer may be used
to provide control circuit power from the main unit power supply.
3. Maximum instantaneous current flow (ICF) during start-up is the point in
the starting sequence where the sum of the LRA for the start-up compressor, plus the total RLA for all running compressors is at a maximum.
4. Maximum incoming wire size for each terminal block is 500 kcmil.
44
MOCP
800/800
700/700
450/450
400/400
300/300
1000/1000
1000/1000
600/600
500/500
400/400
800/800
700/700
450/450
400/400
300/300
1000/1000
1000/1000
600/600
500/500
400/400
1000/1000
800/800
500/500
450/450
350/350
1200/1200
1000/1000
600/600
500/500
450/450
ICF
WD
938/938
816/816
494/494
408/408
326/326
1329/1329
1156/1156
700/700
578/578
462/462
938/938
816/816
494/494
408/408
326/326
1329/1329
1156/1156
700/700
578/578
462/462
938/938
816/816
494/494
408/408
326/326
1329/1329
1156/1156
700/700
578/578
462/462
XL
—
—
1537/1537
1270/1270
1016/1016
—
—
2179/2179
1800/1800
1440/1440
—
—
1537/1537
1270/1270
1016/1016
—
—
2179/2179
1800/1800
1440/1440
—
—
1537/1537
1270/1270
1016/1016
—
—
2179/2179
1800/1800
1440/1440
REC FUSE
SIZE
CONTROL CIRCUIT
V-Ph-Hz
700 700 115-1-60
600 600 115-1-60
350 350 115-1-60
300 300 115-1-60
225 225 115-1-60
800 800 115-1-60
700 700 115-1-60
450 450 115-1-60
350 350 115-1-60
300 300 115-1-60
700 700 115-1-60
600 600 115-1-60
350 350 115-1-60
300 300 115-1-60
225 225 115-1-60
800 800 115-1-60
700 700 115-1-60
450 450 115-1-60
350 350 115-1-60
300 300 115-1-60
700 700 115-1-60
700 700 115-1-60
400 400 115-1-60
350 350 115-1-60
250 250 115-1-60
1000 1000 115-1-60
800 800 115-1-60
500 500 115-1-60
400 400 115-1-60
350 350 115-1-60
MCA and
MOCP
20
20
20
20
20
20
20
20
20
20
20
20
20
20
20
20
20
20
20
20
20
20
20
20
20
20
20
20
20
20
5. Maximum allowable phase imbalance is: voltage, 2%; amps, 5%.
6. Use copper conductors only.
7. The MOCP is calculated as follows:
MOCP = (2.25) (largest RLA) + the sum of the other RLAs. Size the fuse
one size down from the result. The RLAs are listed on the nameplate.
The recommended fuse size in amps (RFA) is calculated as follows:
RFA = (1.50) (largest RLA) + the sum of the other RLAs. Size the fuse
one size up from the result. The RLAs are listed on the nameplate.
COMPRESSOR ELECTRICAL DATA
30XW UNIT
SIZE
150, 325
150, 325 HM
175, 350
175, 350 HM
200, 400
200, 400 HM
250
275
300
HM
LRA
RLA
WD
XL
—
—
—
—
—
VOLTAGE
V-Ph-Hz
COMPRESSOR
200-3-60
230-3-60
380-3-60
460-3-60
575-3-60
200-3-60
230-3-60
380-3-60
460-3-60
575-3-60
200-3-60
230-3-60
380-3-60
460-3-60
575-3-60
200-3-60
230-3-60
380-3-60
460-3-60
575-3-60
200-3-60
230-3-60
380-3-60
460-3-60
575-3-60
200-3-60
230-3-60
380-3-60
460-3-60
575-3-60
200-3-60
230-3-60
380-3-60
460-3-60
575-3-60
200-3-60
230-3-60
380-3-60
460-3-60
575-3-60
200-3-60
230-3-60
380-3-60
460-3-60
575-3-60
06TU483
06TU483
06TU483
06TU483
06TU483
06TU483
06TU483
06TU483
06TU483
06TU483
06TU483
06TU483
06TU483
06TU483
06TU483
06TU483
06TU483
06TU483
06TU483
06TU483
06TU554
06TU554
06TU554
06TU554
06TU554
06TU554
06TU554
06TU554
06TU554
06TU554
06TV680
06TV680
06TV680
06TV680
06TV680
06TV753
06TV753
06TV753
06TV753
06TV753
06TV819
06TV819
06TV819
06TV819
06TV819
COMPRESSOR A
RLA
409.0
355.1
216.7
178.2
141.0
519.2
452.6
273.1
227.0
180.8
409.0
355.1
216.7
178.2
141.0
519.2
452.6
273.1
227.0
180.8
462.8
401.3
242.3
201.3
162.8
591.0
514.1
311.5
257.7
206.4
550.0
478.2
288.5
239.7
191.0
609.0
529.5
319.2
265.4
211.5
650.0
565.4
342.3
283.3
224.4
LRA (WD)
938
816
494
408
326
1329
1156
700
578
462
938
816
494
408
326
1329
1156
700
578
462
938
816
494
408
326
1329
1156
700
578
462
1329
1156
700
578
462
1329
1156
700
578
462
1329
1156
700
578
462
LRA (XL)
—
—
1537
1270
1016
—
—
2179
1800
1440
—
—
1537
1270
1016
—
—
2179
1800
1440
—
—
1537
1270
1016
—
—
2179
1800
1440
—
—
2179
1800
1440
—
—
2179
1800
1440
—
—
2179
1800
1440
RLA
409.0
355.1
216.7
178.2
141.0
519.2
452.6
273.1
227.0
180.8
409.0
355.1
216.7
178.2
141.0
519.2
452.6
273.1
227.0
180.8
462.8
401.3
242.3
201.3
162.8
588.5
512.8
309.0
256.4
203.8
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
COMPRESSOR B
(SIZES 325-400 ONLY)
LRA (WD)
LRA (XL)
938
—
816
—
494
1537
408
1270
326
1016
1329
—
1156
—
700
2179
578
1800
462
1440
938
—
816
—
494
1537
408
1270
326
1016
1329
—
1156
—
700
2179
578
1800
462
1440
938
—
816
—
494
1537
408
1270
326
1016
1329
—
1156
—
700
2179
578
1800
462
1440
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
LEGEND
Heat Machine Units
Locked Rotor Amps
Rated Load Amps
Wye-Delta Start
Across-the-Line Start
45
Guide specifications
Water-Cooled Chiller
HVAC Guide Specifications
Size Range: 150 to 400 Nominal Tons
(528 to 1407 kW)
Carrier Model Number: 30XW
Part 1 — General
1.01 SYSTEM DESCRIPTION
Microprocessor controlled water-cooled liquid chiller
utilizing screw compressor(s) and electronic expansion valves.
1.02 QUALITY ASSURANCE
A. Unit shall be rated in accordance with AHRI Standard 550/590 (U.S.A.), latest edition.
B. Unit construction shall comply with ASHRAE 15
Safety Code, NEC, and ASME applicable codes
(U.S.A. codes).
C. Unit shall be manufactured in a facility registered to
ISO 9001:2000 Manufacturing Quality Standard.
D. 200-v, 230-v, 460-v, 575-v, 60 Hz units shall be
constructed in accordance with UL or UL Canada
standards and shall be tested and listed by ETL or
ETL, Canada, as conforming to those standards.
Units shall carry the ETL and ETL, Canada, labels.
1.03 DELIVERY, STORAGE, AND HANDLING
A. Unit controls shall be capable of withstanding 150 F
(65.5 C) storage temperatures in the control
compartment.
B. Chiller and starter should be stored indoors, protected from construction dirt and moisture. An
inspection should be conducted under shipping
tarps, bags, or crates to be sure water has not collected during transit. Protective shipping covers
should be kept in place until machine is ready for
installation. The inside of the protective cover
should meet the following criteria:
1. Temperature is between 40 F (4.4 C) and
120 F (48.9 C).
2. Relative humidity is between 10% and 80%
(non-condensing).
Part 2 — Products
2.01 EQUIPMENT
A. General:
Factory assembled, single-piece, water-cooled liquid
chiller. Unit sizes 325-400 shall have dual (2) independent refrigerant circuits. Contained within the
unit cabinet shall be all factory wiring, piping, controls, refrigerant charge (HFC-134a) and special features required prior to field start-up.
B. Compressor(s):
1. Semi-hermetic twin-screw compressor(s) with
internal muffler and check valve.
2. Each compressor shall be equipped with a discharge shutoff valve.
46
C. Evaporator:
1. Shall be tested and stamped in accordance
with ASME Code (U.S.A.) for a refrigerant
working-side pressure of 220 psig (1408 kPa).
Water-side pressure rating shall be 150 psig
(1034 kPa). In Canada, maximum water-side
pressure shall be 250 psig (1725 kPa), per the
Canadian National Registry.
2. Shall be mechanically cleanable shell-and-tube
type with removable heads.
3. Tubes shall be internally enhanced, seamlesscopper type, and shall be rolled into tube
sheets.
4. Shall be equipped with victaulic fluid
connections (2 pass) or flanged fluid connections (1, 2 or 3 pass).
5. Shell shall be insulated with 3/4-in. (19-mm)
closed-cell, polyvinyl chloride foam with a maximum K factor of 0.28. Heads may require field
insulation.
6. Shall have an evaporator drain and vent.
7. Design shall incorporate 2 independent refrigerant circuits (sizes 325-400 only).
8. Shall be equipped with factory-installed thermal
dispersion chilled fluid flow switch.
D. Condenser:
1. Shall be tested and stamped in accordance
with ASME code (U.S.A.) for a refrigerant
working-side pressure of 220 psig (1408 kPa).
Water-side pressure rating shall be 150 psig
(1034 kPa). In Canada, maximum water-side
pressure shall be 250 psig (1725 kPa), per the
Canadian National Registry.
2. Shall be mechanically cleanable shell-and-tube
type with removable heads.
3. Tubes shall be internally enhanced, seamlesscopper type, and shall be rolled into tube
sheets.
4. Shall be equipped with victaulic water
connections.
5. Unit sizes 325-400 shall have dual (2) independent refrigerant circuits.
E. Heat Machines:
1. Condenser shall be tested and stamped in
accordance with ASME Code (U.S.A.) for a
refrigerant working-side pressure of 300 psig
(2068 kPa).
2. Unit sizes 325-400 shall have dual (2) independent refrigerant circuits.
3. Heat machine condensers shall include factoryinstalled thermal insulation on the condenser,
condenser flow switch and leaving water
temperature sensor. Heat machine units
require field-installed thermal insulation on the
compressor discharge piping and waterbox
heads because of high temperature.
F. Refrigeration Components:
Refrigerant circuit components shall include oil separator, high and low side pressure relief devices, discharge and liquid line shutoff valves, filter drier,
moisture indicating sight glass, expansion valve,
refrigerant economizer (unit sizes 175, 200, 250,
275, 300, 350, 400), and complete charge of compressor oil. The units shall have a complete operating charge of refrigerant HFC-134a.
G. Controls:
1. Unit controls shall include the following minimum components:
a. Microprocessor with non-volatile memory.
Battery backup system shall not be accepted.
b. Separate terminal block for power and
controls.
c. Separate 115-v power supply to serve all
controllers, relays, and control components.
d. ON/OFF control switch.
e. Replaceable solid-state controllers.
f. Pressure sensors installed to measure
suction, oil, economizer (unit sizes 175,
200, 250, 275, 300, 350, 400), and discharge pressure. Thermistors installed to
measure evaporator entering and leaving
fluid temperatures.
2. Unit controls shall include the following
functions:
a. Automatic circuit lead/lag.
b. Capacity control based on leaving chilled
fluid temperature and compensated by rate
of change of return-fluid temperature with
temperature set point accuracy to 0.1° F
(0.05° C).
c. Limiting the chilled fluid temperature
pulldown rate at start-up to an adjustable
range of 0.2° F to 2° F (0.1 to 1.1° C) per
minute to prevent excessive demand spikes
at start-up.
d. Seven-day time schedule.
e. Leaving chilled fluid temperature reset from
return fluid.
f. Chilled water and condenser water pump
start/stop control.
g. Chiller control for parallel chiller applications
without addition of hardware modules and
control panels (requires thermistors).
h. Single step demand limit control activated by
remote contact closure.
H. Safeties:
Unit shall be equipped with thermistors and all necessary components in conjunction with the control
system to provide the unit with the following
protections:
1. Loss of refrigerant charge.
2. Reverse rotation.
3. Low chilled fluid temperature.
4. Motor overtemperature.
5. High pressure.
6. Electrical overload.
7. Loss of phase.
8. Loss of chilled water flow.
I. Diagnostics:
1. The control panel shall include, as standard, a
display:
a. Touch screen display consisting of ¼ VGA
LCD (liquid crystal display) with adjustable
contrast and backlighting.
b. Display shall allow a user to navigate
through menus, select desired options and
modify data.
2. Features of the display shall include:
a. Display shall be customizable and allow up to
72 data points.
b. Display shall support both local equipment
or network made for remote mount.
c. Display shall allow access to configuration,
maintenance, service, set point, time schedules, alarm history and status data.
d. Display shall have one button for chiller on/
off.
e. Display shall include three levels of password
protection against unauthorized access to
configuration and maintenance information, and display set up parameters.
f. Display shall allow for easy connection of a
portable hand held technician tool to access
information and upload and/or download
chiller settings.
g. Display shall be compatible with the Carrier
Comfort Network® (CCN) system and provide network alarm acknowledgement or
indication and provide capability to fully
monitor and control chiller.
h. Display alarms and parameters shall be
capable of being displayed in full text.
i. Display shall be capable of displaying the last
50 alarms and will store a snapshot of a
minimum of 20 status data parameters for
each alarm.
j. Compressor run hours.
k. Compressor number of starts.
l. Compressor current.
47
Guide specifications (cont)
m. Time of day:
1) Display module, in conjunction with the
microprocessor, must also be capable of
displaying the output (results) of a service test. Service test shall verify operation of every switch, thermistor, and
compressor before chiller is started.
2) Diagnostics shall include the ability to
review a list of the 30 most recent
alarms with clear language descriptions
of the alarm event. Display of alarm
codes without the ability for clear language descriptions shall be prohibited.
3) An alarm history buffer shall allow the
user to store no less than 30 alarm
events with clear language descriptions,
time and date stamp event entry.
4) The chiller controller shall include multiple connection ports for communicating
with the local equipment network and
the Carrier Comfort Network (CCN)
system.
5) The control system shall allow software
upgrade without the need for new hardware modules.
J. Operating Characteristics:
Unit shall be capable of starting up with 95 F (35 C)
entering fluid temperature to the evaporator.
K. Electrical Requirements:
1. Unit primary electrical power supply shall enter
the unit at a single location.
2. Unit shall operate on 3-phase power at the voltage shown in the equipment schedule.
3. Control voltage shall be 115-v (60 Hz), singlephase, separate power supply.
L. Special Features:
Certain standard features are not applicable when
the features designated by * are specified. For assistance in amending the specifications, contact your
local Carrier Sales office.
* 1. Wye-Delta Starter:
Unit shall have a factory-installed, wye-delta
starter to minimize electrical inrush current.
2. Vibration Isolation:
Unit shall be supplied with rubber-in-shear
vibration isolators for field installation.
3. Control Power Transformer:
Unit shall be supplied with a factory-installed
controls transformer that will supply 115-v control circuit power from the main unit power
supply.
4. Temperature Reset Sensor:
Unit shall reset leaving chilled fluid temperature
based on outdoor ambient temperature or
space temperature when this sensor is installed.
48
* 5. Minimum Load Control:
Unit shall be equipped with factory-installed,
microprocessor-controlled, minimum load control that shall permit unit operation down to
10% of full capacity.
6. One-Pass Evaporator:
Factory-installed option shall reduce pressure
drop for high flow applications.
7. Three-Pass Evaporator:
Factory-installed option shall enhance performance for low flow applications.
8. Energy Management Module:
A factory or field installed module shall provide
the following energy management capabilities:
4 to 20 mA signals for leaving fluid temperature
reset, cooling set point reset or demand limit
control; 2-point demand limit control (from 0 to
100%) activated by a remote contact closure;
and discrete input for "Ice Done" indication for
ice storage system interface.
9. BACnet Translator Control:
Unit shall be supplied with factory or fieldinstalled interface between the chiller and a
BACnet Local Area Network (LAN, i.e., MS/
TP EIA-485).
10. LON Translator Control:
Unit shall be supplied with factory or fieldinstalled interface between the chiller and a
Local Operating Network (LON, i.e., LonWorks
FT-10A ANSI/EIA-709.1).
11. Navigator™ Hand Held Portable Display:
a. Portable hand held display module with a
minimum of 4 lines and 20 characters per
line, or clear English, Spanish, Portuguese
or French language.
b. Display menus shall provide clear language
descriptions of all menu items, operating
modes, configuration points and alarm diagnostics. Reference to factory codes shall not
be accepted.
c. RJ-14 connection plug shall allow display
module to be connected to factory-installed
receptacle.
d. Industrial grade coiled extension cord shall
allow the display module to be moved
around the chiller.
e. Magnets shall hold the display module to
any sheet metal panel to allow hands-free
operation.
f. Display module shall have NEMA 4x
housing.
g. Display shall have back light and contrast
adjustment for easy viewing in bright sunlight or night conditions.
h. Raised surface buttons with positive tactile
response.
12. Compressor Suction Service Valve:
Optional refrigerant discharge isolation and liquid valves enable service personnel to store the
refrigerant charge in the evaporator or condenser during servicing. This factory-installed
option allows for further isolation of the compressor from the evaporator vessel.
13. Refrigerant Isolation Valves:
Valves shall enable service personnel to store
the refrigerant charge in the evaporator or condenser during servicing. During servicing, the
in-chiller storage shall reduce refrigerant loss
and eliminate time-consuming transfer procedures. As a self-contained unit, the AquaForce
30XW chiller shall not require additional
remote storage systems.
14. GFI Convenience Outlet:
Shall be factory or field-installed and mounted
with easily accessible 115-v female receptacle.
Shall include 4 amp GFI receptacle.
15. 300 psig (2068 kPa) Evaporator Operating
Pressure:
This option shall provide for water-side pressure operation up to 300 psig (2068 kPa).
16. 300 psig (2068 kPa) Condenser Operating
Pressure:
This option shall provide for water-side pressure operation up to 300 psig (2068 kPa).
17. Marine Waterboxes:
Marine waterboxes shall provide water piping
connections extending from the side of the
waterbox (as opposed to extending from the
end of the waterbox). This option also includes
a removable bolt on waterbox cover allowing
access to the heat exchanger tubes without
breaking the existing field piping. This option
is available for both the evaporator and
condenser.
18. Flanged Connection:
The flanged connection option shall provide an
ANSI flange on the end of the chiller water
piping for connection to a customer supplied
mating flange in the field piping. This option
is available for both the evaporator and
condenser.
19. One-Pass Condenser:
This option shall provide a lower pressure drop
through the condenser for applications with low
delta T (temperature) or high flow or where the
condensers are piped in a series. The one-pass
condenser option is only available with flanged
20.
21.
22.
23.
24.
25.
26.
27.
connections and with a suction end leaving
water connection.
Insulation Package:
Package shall provide 3/4-in. thermal insulation
on compressor suction housing, and suction
line.
Dual Point Power:
The dual point power option shall provide a
means for connecting two sources of power to
dual compressor chillers (sizes 325-400 only).
One source of power is wired to operate the
compressor on the A circuit and one source of
power is wired to operate the compressor on
the B circuit of the chiller.
Non-Fused Disconnect:
This option shall provide a no load, lockable,
through the door handle disconnect for unit
power on the chiller. On dual point power, one
disconnect is provided for each of the two main
power supplies. This disconnect does not
remove the control circuit from power supply.
Nitrogen Charge:
A nitrogen charge option is available to provide
a 15 psig (103.4 kPa) charge of nitrogen
instead of a full factory charge of R-134a refrigerant to keep the chiller refrigerant circuit dry
during shipment. This option is recommended
for applications where the unit will be disassembled prior to installation. Units shipped with a
nitrogen charge will receive an electrical continuity test at the factory prior to shipment.
Crate for Shipment:
This option is recommended for export orders.
The chiller will be bagged prior to being placed
in a wooden crate.
Remote Enhanced Display:
This option is a remotely mounted indoor
40-character per line, 16-line display panel for
unit monitoring and diagnostics.
Vibration Springs:
A set of non-siesmic spring isolators can be
provided for installation at the jobsite.
Seismic Isolation Package:
Accessory package shall meet International
Building Code and ASCE 7 seismic qualification
requirements in concurrence with ICC ES
AC156 Acceptance Criteria for Seismic Qualification by Shake-Table Testing of Nonstructural
Components and Systems. Accessory shall be
installed at the jobsite.
49
Carrier Corporation • Syracuse, New York 13221
3-10
Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obligations.
Pg 52
Catalog No. 04-52300020-01
Printed in U.S.A.
Form 30XW-3PD
Section 9
Replaces: 30XW-2PD
Tab
9a