Goodman AWS174CDH Installation Manual
Installation, Operation,
IOM 1202-2
and Maintenance Manual
Pathnder®
Air-cooled Screw Chillers
Model AWS
170 to 550 Tons (600 to 1935 kW) 60Hz
164 to 604 Tons (575 to 2125 kW) 50Hz
HFC-134a Refrigerant
Group: Chiller
Part Number: IOM1202-2
Date: May 2015
Table of ConTenTs
Introduction..................................3
Installation and Startup ........................4
Lifting and Mounting Information ...............16
Isolator Information ..........................50
Electrical Information.........................59
Pressure Drop Data ..........................82
Controller Operation .........................94
Sequence of Operation ......................108
Unit Functions .............................114
Hazard Identication
DANGER
Dangers indicate a hazardous situation which will result in
serious injury or death if not avoided.
WARNING
Warnings indicate potentially hazardous situations which
can result in property damage, servere personal injury or
death if not avoided.
Circuit Functions ...........................126
Alarms and Events ..........................137
Using the Controller.........................145
Optional Remote User Interface ...............148
Optional Compressor VFD....................150
Startup and Shutdown .......................154
System Maintenance ........................156
Appendix ..................................160
CAUTION
Cautions indicate potentially hazardous situations which
can result in personal injury or equipment damage if not
avoided.
Manufactured in an ISO 9001 & ISO 14001 certied facility
©2015 Daikin Applied. Illustrations and data cover the Daikin Applied product at the time of publication and we reserve the right to
make changes in design and construction at any time without notice.
IOM 1202-2 • PATHFINDER® MODEL AWS CHILLERS 2 www.DaikinApplied.com
Job Name
Installation Location
Customer Order Number
Model Number(s)
G.O. Number(s)
Chilled Water
Yes
No
N/A
Initials
Piping Complete
Water strainer installed on evaporator entering chilled water piping per IM
Water System filled, flushed and vented
Pumps installed and operational (rotation checked, strainers cleaned)
Controls operational (3-way valves, face/bypass dampers, bypass valves, etc.)
Water system operated and tested; flow meets unit design requirements
Flow switch installed and wired
Vent installed on evaporator
Glycol at design %
Electrical
Yes
No
N/A
Initials
Building controls operational
Power leads have been checked for proper phasing and voltage
All interlock wiring complete and compliant with Daikin specifications
Power applied at least 24 hours before startup
Oil heaters energized at least 24 hours before startup
Chiller components (EXV Sensors Transducers) installed and wired properly.
*Wiring complies with National Electrical Code and local codes (See Notes)
Remote EXV wired with shielded cable
Miscellaneous
Yes
No
N/A
Initials
Unit control switches all off
Remote Evaporator Piping factory reviewed and approved
All refrigerant components/piping leak tested, evacuated and charged
Thermometers, wells, gauges, control, etc., installed
Minimum system load of 80% capacity available for testing/adjusting controls
Document Attached: Technical Breakdown from Selection Software
Document Attached: Final Order Acknowledgement
Document Attached: Remote evaporator piping approval
Notes: The most common problems delaying start-up and affecting unit reliability are:
3. Items on this list incorrectly acknowledged may result in delayed start and extra expenses incurred for return trips.
Contractor Representative
Daikin Applied Sales Representative
Signed:
Signed:
Name:
Name:
Company:
Company:
Date:
Date:
Phone/Email:
Phone/Email:
Pre-Start Checklist – Screw Chillers
Must be completed, signed and provided to Daikin Applied at least 2 weeks prior to requested start date.
*Power leads connected to power block or optional disconnect
1. Field installed compressor motor power supply leads too small. Questions: Contact the local Daikin sales representative*. State size, number and
type of conductors and conduits installed:
a. From Power supply to chiller
* Refer to NEC Article 430-22 (a)
Cut Here
2. Remote Evaporator piping incomplete or incorrect. Provide approved piping diagrams.
©2014 Daikin Applied Form SF01017 P/N 331977001 10OCT2014
InTroduCTIon
InTroduCTIon
General Information
Daikin Pathnder® air-cooled chillers are complete, self-
contained chillers that include the latest in engineered
components arranged to provide a compact and efcient unit.
Each unit is completely assembled, factory wired, evacuated,
charged, tested and comes complete and ready for installation.
Each compressor has an independent refrigeration circuit.
Liquid line components included are a manual liquid line shutoff
valve, charging port, lter-drier, sight-glass/moisture indicator,
and electronic expansion valve. A discharge check valve and
discharge shutoff valve are included and a compressor suction
shutoff valve is optional. Other features include compressor
heaters, evaporator heaters for freeze protection, automatic,
one-time pumpdown of each refrigerant circuit upon circuit
shutdown, and an advanced fully integrated controller.
Pathnder® units are available in one of three unit efciency
levels - standard, high, and premium.
Information on the operation of the unit MicroTech®III controller
can be found starting on page 94.
Nomenclature
AWS XXX C D S E
Remote Evaporator Models
For enhanced application exibility, Pathnder® chillers are
also available with a remote evaporator option. Information on
remote evaporator units can be found in the current installation
manual for remote evaporator congurations, available at
www.DaikinApplied.com.
Inspections
When the equipment is received, carefully check all items
against the bill of lading to verify for a complete shipment.
Check all units for damage upon arrival. All shipping damage
must be reported to the carrier and a claim must be led
with the carrier. Check the unit name plate before unloading
the unit to be sure that it agrees with the power supply
available. Physical damage to a unit after shipment is not the
responsibility of Daikin.
NOTE: Unit shipping and operating weights are shown in the
Lifting and Mounting section beginning on page 16
Model
AWS = Air-Cooled World Product Screw Compressor
Nominal unit size
(cataloged size—nominal unit capacity)
Design vintage
Table 1: Operating Limits
Maximum standby ambient temperature
Maximum operating standard ambient temperature 105°F (40.6°C)
with optional high ambient package
Note: some standard efciency units may not operate fully loaded up to the 125°F maximum ambient temp limit. Some
units offer a reduced RFS option limiting max ambient to 118°F. Contact the Daikin Applied sales ofce for information.
Minimum operating ambient temperature (standard control) 35°F (2°C)
Minimum operating ambient temperature (with optional low-ambient control) 0°F (-18°C)
Leaving chilled water temperature [NOTE: 60°F (15.6°C) max with VFD and reduced RFS option]
Leaving chilled uid temperatures (with anti-freeze) - Unloading is not permitted with uid leaving temperatures below
30°F (-1°C). [NOTE: 60°F (15.6°C) max with VFD and reduced RFS option]
Operating chilled water delta-T range
Maximum evaporator operating inlet uid temperature 88°F (31.1°C)
Maximum evaporator non-operating inlet uid temperature
Unit conguration
E = Standard packaged
M = Remote Evaporator
Unit efciency
S = Standard
H = High
P = Premium
Unit compressors
D = Dual compressors
T = Triple compressors
130°F (54.4°C)
125°F (52°C)
40°F to 70°F
(4.4°C to 21.1°C)
20°F to 70°F
(-6.7°C to 21.1°C)
6°F to 18°F
(3.3°C to 10°C)
100°F (38°C)
www.DaikinApplied.com 3 IOM 1202-2 • PATHFINDER® MODEL AWS CHILLERS
Installation and maintenance are to be performed only by
qualied personnel who are familiar with local codes and
regulations, and experienced with this type of equipment.
WARNING
Sharp edges and coil surfaces are a potential injury hazard.
Avoid contact with them.
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For pad-mounted units, it is recommended that the unit be
raised a few inches with suitable supports such as neoprene
wafe vibration pads, located at least under the mounting
locations. This will allow water to drain from under the unit and
facilitate cleaning under it.
Figure 1: Required Lifting Method
Startup by a Daikin Applied service representative is included
on all Pathnder® units sold for installation within the U.S.
and Canada and must be performed by them to initiate the
standard Limited Product Warranty. Startup by any party other
than a Daikin Applied service representative will void the
Limited Product Warranty. Two-week prior notication of startup
is required. The contractor should obtain a copy of the Startup
Scheduled Request Form from the sales representative or from
the nearest Daikin Applied service ofce.
WARNING
Escaping refrigerant can displace air and cause suffocation.
Immediately evacuate and ventilate the equipment area. If
the unit is damaged, follow Environmental Protection Agency
(EPA) requirements. Do not expose sparks, arcing equipment,
open ame or other ignition source to the refrigerant.
Handling
DANGER
Improper lifting or moving of a unit can result in property
damage, severe personal injury or death. Follow rigging and
moving instructions carefully.
Avoid rough handling shock due to impact or dropping the unit.
Do not push or pull the unit. Never allow any part of the unit
to fall during unloading or moving as this can result in serious
damage.
To lift the unit, lifting tabs with 3” (76 mm) diameter holes
are provided on the base of the unit. All lifting holes must be
used when lifting the unit. Spreader bars and cables should
be arranged to prevent damage to the condenser coils or unit
cabinet (see Figure 1).
Location
Locate the unit outdoors and provide proper airow to the
condenser. (See page 5 for required clearances.)Using
less clearance than shown in Figure 2 can cause discharge
air recirculation to the condenser and could have a signicant
detrimental effect on unit performance.
Due to the shape of the condenser coils on Pathnder® chillers,
it is recommended that the unit be oriented so that prevailing
winds blow parallel to the unit length, thus minimizing the wind
effect on condensing pressure and performance. If low ambient
temperature operation is expected, optional louvers should be
installed if the unit has no protection against prevailing winds.
NOTE: 1.Unit with 8 lifting points illustrated above; the
number of condenser sections, fans, and lifting points
can vary from this diagram.see lifting/mounting
drawings beginning on page 16 to identfy the
number of lifting points for a specic unit.
2.All rigging points must be used. See weights
at lifting points beginning on page 16 for each
specic size unit.
3.Crosswise and lengthwise spreader bars must be
used to avoid damage to unit.
Mounting Hole Access
The inside of the base rail is open to allow access for securing
mounting bolts, etc.
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Service Access
Compressors, lter-driers, and manual liquid line shutoff valves
are accessible on each side or end of the unit. The evaporator
heater is located on the barrel.
The control panels are located on the end of the chiller.
The left-hand control box contains the unit and circuit
microprocessors as well as transformers, fuses and terminal.
The right-hand panel contains a circuit breaker. A minimum
of four feet of clearance is required in front of the panels. The
side clearance required for airow provides sufcient service
clearance.
On all Pathnder® units, the condenser fans and motors can
be removed from the top of the unit. The complete fan/motor
assembly can be removed for service. The fan blade must be
removed for access to wiring terminals at the top of the motor.
DANGER
Disconnect, lockout and tag all power to the unit before
servicing condenser fan motors or compressors. Failure to do
so can cause bodily injury or death.
Do not block access to the sides or ends of the unit with piping
or conduit. These areas must be open for service access.
Do not block access to the control panels with eld-mounted
disconnect switches.
Clearance Requirements
The clearance requirements shown are a general guideline and
cannot account for all scenarios. Such factors as prevailing
winds, additional equipment within the space, design outdoor
air temperature, and numerous other factors may require more
clearance than what is shown.
Figure 2: Guidelines
NOTE: 1 Minimum side clearance between two units is 12
feet (3.7 m). See Case 2 for spacing closer than 12 ft.
2 Minimum clearance on each side is 8 feet (2.4 m)
when installed in a pit no deeper than the unit height.
Unit must not be installed in a pit or enclosure that
is deeper or taller than the height of the unit unless
extra clearance is provided per note 4. See Case 5
for performance adjustment factors when installations
vary from minimum values.
3 Minimum side clearance to a side wall or building
taller than the unit height is 6 feet (1.8 meters),
provided no solid wall above 6 feet (1.8 meters) is
closer than 12 feet (3.7 meters) to the opposite side
of the unit. See Case 1 for performance adjustment
factors when installations vary from minimum values.
4 There must be no obstruction of the fan discharge.
Restricted Air Flow
The clearances required for design operation of Pathnder®
air-cooled chillers are described in the previous section.
Occasionally, these clearances cannot be maintained due to
site restrictions such as units being too close together or a
fence or wall restricting airow, or both. Pathnder® chillers
have several features that may help mitigate the penalties
attributable to restricted airow.
The condenser section is “W” shaped, as shown below. This
allows inlet air for these coils to come in from both sides
and the bottom. All the coils in one “V” section serve one
compressor except for 3 circuit units which use both sides of
the “W” shaped condenser coil..
The MicroTech® III control is proactive in response to “offdesign conditions”. In the case of single or compounded
inuences restricting airow to the unit, the microprocessor will
act to keep the unit running (at reduced capacity), rather than
allowing a shut-off on high discharge pressure.
Figure 3: Air Flow
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Case 1: Building or Wall on One Side of Unit
The existence of a screening wall or the wall of a building
in close proximity to an air-cooled chiller is common in both
rooftop and ground level applications. Hot air recirculation
on the coils adjoining the wall will increase compressor
discharge pressure, decreasing capacity and increasing power
consumption.
When close to a wall, it is desirable to place chillers on the
north or east side of them. It is also desirable to have prevailing
winds blowing parallel to the unit’s long axis. The worst case is
to have wind blowing hot discharge air into the wall.
Figure 4: Case 1 - Unit Adjacent to Wall
Figure 5: Case 1 - Adjustment Factors
Case 2: Two Units Side By Side
Two or more units sited side by side are common. If spaced
closer than 12 feet (3.7 meters) it is necessary to adjust the
performance of each unit; circuits adjoining each other are
affected. If one of the two units also has a wall adjoining it, see
Case 1. Add the two adjustment factors together and apply to
the unit located between the wall and the other unit.
Mounting units end to end will not necessitate adjusting
performance. Do not use pit or solid wall surrounds where the
ambient air temperature exceeds 100°F (38°C).
Figure 6: Case 2 - Two Units Side by Side
Figure 7: Case 2 - Adjustment Factors
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Case 3: Three or More Units Side By Side
When three or more units are side by side, the outside chillers
(1 and 3 in this case) are inuenced by the middle unit only on
their inside circuits. Their adjustment factors will be the same
as Case 2. All inside units (only number 2 in this case) are
inuenced on both sides and must be adjusted by the factors
shown below.
Figure 8: Case 3 - Three or More Units
Figure 9: Case 3 - Adjustment Factors
Case 4: Open Screening Walls
Decorative screening walls are often used to help conceal a
unit either on grade or on a rooftop. Design these walls such
that the combination of their open area and distance from the
unit do not require performance adjustment. It is assumed that
the wall height is equal to or less than the unit height when
mounted on its base support. This is usually satisfactory for
concealment. If the wall height is greater than the unit height,
see Case 5, Pit Installation.
The distance from the sides of the unit to the side walls must
be sufcient for service, such as opening control panel doors.
If each side wall is a different distance from the unit, the
distances can be averaged providing either wall is not less than
8 feet (2.4 meters) from the unit. For example, do not average
4 feet and 20 feet to equal 12 feet (1 meter and 5 meters to
equal 3 meters).
Figure 10: Case 4 - Open Screening Walls
Figure 11: Case 4 - Adjustment Factor
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Case 5: Pit/Solid Wall Installation
Pit installations can cause operating problems resulting
from recirculation and restriction can both occur. A solid wall
surrounding a unit is substantially the same as a pit and the
data presented here should be used.
Steel grating is sometimes used to cover a pit to prevent
accidental falls or trips into the pit. The grating material and
installation design must be strong enough to prevent such
accidents, yet provide abundant open area to avoid serious
recirculation problems. Have any pit installation reviewed by a
Daikin Applied sales representative prior to installation to make
sure it has sufcient air-ow characteristics, and approved by
the installation design engineer to avoid risk of accident.
Figure 12: Case 5 - Pit Installation
Figure 13: Case 5 - Adjustment Factors
Full Load Capacity Adjustment Factor
6.00
5.00
4.00
3.00
2.00
Capacity Reduction (%)
1.00
0.00
8
(2.4)
H - Height of Wall or Building in ft. (m)
10
(3.1)
D=6 ft
(1.8m)
12
(3.7)
D=8 ft
(2.4m)
D=10 ft
(3.1m)
14
(4.3)
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Chilled Water Piping
Figure 14: Typical Piping, Shell and Tube Evaporator
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VENT
3/8” PIPE PLUG
OUTLET
INLET
VIBRATION
ELIMINATOR
DRAIN
PROTECT ALL FIELD PIPING
AGAINST FREEZING
WATER
STRAINER
CAUTION
To prevent damage to the evaporator and potential chiller
failure, a supply strainer is required in the inlet water piping
which connects to this evaporator. This strainer must be
installed prior to operation of the chilled liquid pumps.
Field installed water piping to the chiller must include:
• A cleanable strainer installed at the water inlet to the
evaporator to remove debris and impurities before they
reach the evaporator. Install cleanable strainer within
5 feet (1500 mm) of pipe length from the evaporator
inlet connection and downstream of any welded
connections (no welded connections between strainer
and evaporator).
• AWS-C models require a strainer with perforations no
larger than 0.125” (3.2 mm) diameter. See the Inlet
Strainer Guidelines on page 10 for more information.
• A water ow switch must be installed in the horizontal
piping of the supply (evaporator outlet) water line to avoid
evaporator freeze-up under low or no ow conditions. The
ow switch may be ordered as a factory-installed option,
a eld-installed kit, or may be supplied and installed in the
eld. See page 11 for more information.
• Purge air from the water system before unit start-up to
provide adequate ow through the evaporator.
• Adequate piping support, independent from the unit,
to eliminate weight and strain on the ttings and
connections.
It is recommended that the eld installed water piping to the
chiller include:
• Thermometers at the inlet and outlet connections of the
evaporator.
• Water pressure gauge connection taps and gauges at
LEAVING FLUID
TEMP. SENSOR
VIBRATION
ELIMINATOR
FLOW
SWITCH
VALVED
PRESSURE
GAUGE
GATE
VALV E
BALANCING
VALV E
FLOW
GATE
VALV E
FLOW
the inlet and outlet connections of the evaporator for
measuring water pressure drop.
• Shutoff valves are necessary to isolate the unit from the
piping during unit servicing.
• Minimum bends and changes in elevation to minimize
pressure drop.
• An expansion tank or regulating valve to maintain
adequate water pressure
• Vibration eliminators in both the supply and return water
lines to reduce transmissions to the building.
• Flush the system water piping thoroughly before making
connections to the unit evaporator.
• Piping insulation, including a vapor barrier, helps prevent
condensation and reduces heat loss.
• Regular water analysis and chemical water treatment
for the evaporator loop is recommended immediately at
equipment start-up.
Chilled Water Pump
It is important that the chilled water pumps be wired to, and
controlled by, the chiller controller. The chiller controller has
the capability to selectively start pump A or B or automatically
alternate pump selection and also has standby operation
capability. The controller will energize the pump whenever at
least one circuit on the chiller is enabled to run, whether there
is a call for cooling or not. This helps ensure proper unit startup
sequence. The pump will also be turned on when the water
temperature goes below the Freeze Setpoint for longer than
a specied time to help prevent evaporator freeze-up. Wiring
connection points are shown in Figure 56 on page 60.
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CAUTION
Adding glycol or draining the system is the recommended
method of freeze protection. If the chiller does not have the
ability to control the pumps and the water system is not drained
in temperatures below freezing, catastrophic evaporator
failure may occur. Adding glycol or draining the system is the
recommended method of freeze protection. If the chiller does
not have the ability to control the pumps and the water system
is not drained in temperatures below freezing, catastrophic
evaporator failure may occur.
Failure to allow pump control by the chiller controller may
cause the following problems:
1. If any device other than the chiller attempts to start the
chiller without rst starting the pump, the chiller will lock
out on the No Flow alarm and require manual reset.
2. If the chiller evaporator water temperature drops below
the “Freeze setpoint” the chiller will attempt to start the
water pumps to avoid evaporator freeze. If the chiller
does not have the ability to start the pumps, the chiller
will alarm due to lack of water ow.
3. If the chiller does not have the ability to control the
pumps and the water system is not to be drained in
temperatures below freezing, the chiller may be subject
to catastrophic evaporator failure due to freezing. The
freeze rating of the evaporator is based on the immersion
heater and pump operation. The immersion heater itself
may not be able to properly protect the evaporator from
freezing without circulation of water.
Inlet Strainer Guidelines
An inlet water strainer kit must be installed in the chilled water
piping before the evaporator inlet. Two paths are available to
meet this requirement:
1. A eld-installed kit shipped-loose with the unit is available
for all unit sizes and consists of:
• Y-type area strainer with 304 stainless steel perforated
basket, Victaulic pipe connections and strainer cap [a
strainer with perforations no larger than 0.125” (3.2
mm) diameter for AWS-C models].
• Extension pipe with two Schrader ttings that can be
used for a pressure gauge and thermal dispersion ow
switch. The pipe provides sufcient clearance from the
evaporator for strainer basket removal.
• ½-inch blowdown valve
• Two grooved clamps
The strainer is sized per Table 2 and has the pressure drop
shown in the Strainer Pressure Drop graph. Connection sizes
are given in the Pressure Drop Data section on page 82.
2. A eld-supplied strainer that meets specication and
installation requirements of this manual.
Table 2: Strainer Sizing Data
Strainer
Size (in.)
6 30.5 72
8 36.0 125
10 43.0 205
Figure 15: Strainer Pressure Drop
Strainer Plus
Pipe Length
(in.)
Strainer
Weight
(lbs)
Installing Inlet Strainer (Field-installed Kit)
The extension pipe is located adjacent to the evaporator with
the strainer then mounted to it. The strainer must be mounted
per manufacturer’s instruction with the arrows in the direction
of ow; inlet and outlet are noted along with the arrows.
Use one Victaulic clamp to mount the extension pipe to the
evaporator and the second to mount the strainer to the pipe.
The clamps to mount the eld piping to the strainer are eld
supplied. The piping and strainer must be supported to prevent
any stress on the evaporator nozzle.
The extension pipe has two Schrader ttings that can be
used as desired. The ball valve can be installed in the strainer
basket cover as a blow-down valve.
System Water Volume
All chilled water systems need adequate time to recognize a
load change, respond to that load change and stabilize, without
undesirable short cycling of the compressors or loss of control.
In air conditioning systems, the potential for short cycling
usually exists when the building load falls below the minimum
chiller plant capacity or on close-coupled systems with very
small water volumes.
Some of the things the designer should consider when looking
at water volume are the minimum cooling load, the minimum
chiller plant capacity during the low load period and the desired
cycle time for the compressors.
Assuming that there are no sudden load changes and that
the chiller plant has reasonable turndown, a rule of thumb of
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“gallons of water volume equal to two to three times the chilled
water gpm ow rate” is often used. Refer to AG 31-003 for
method of calculating “Minimum Chilled Water Volume”.
A properly designed storage tank may be added if the system
components do not provide sufcient water volume.
Variable Speed Pumping
Variable water ow involves reducing the water ow through
the evaporator as the load decreases. Daikin chillers are
designed for this duty, provided that the rate of change in water
ow is slow, and the minimum and maximum ow rates for the
evaporator are not exceeded.
The recommended maximum change in water ow is 10
percent of the change per minute. For example, if the
maximum (design) ow is 200 gpm and the ow is reduced
to a minimum of 140 gpm, the change in ow is 60 gpm, so
the maximum change per minute would be 10% of 60, or 6
gpm per minute. It would take ten minutes to change the ow
through the entire range.
The water ow through the evaporator must remain between
the minimum and maximum values listed, beginning on page
82. Note that units with variable chilled water ow can
tolerate lower minimum ows than constant ow systems. If
ow drops below the minimum allowable, large reductions in
heat transfer can occur. Unit set point “Variable Evap Flow”
must be set to “Yes”, if the chill water ow is variable. If the ow
exceeds the maximum rate, excessive pressure drop and tube
erosion can occur.
Evaporator Freeze Protection
Pathnder® chillers are equipped with thermostatically
controlled evaporator heaters that help protect against freezeup down to -20°F (-28°C). The immersion heater itself may not
be able to properly protect the evaporator from freezing without
circulation of water, and it is important that the chilled water
pumps are wired to, and controlled by, the chiller’s controller.
Additionally, use at least one of the following procedures during
periods of sub-freezing temperatures:
1. Add a concentration of a glycol anti-freeze with a freeze
point 10°F below the lowest expected temperature. This
will result in decreased capacity and increased pressure
drop. Do not use automotive grade antifreezes as they
contain inhibitors harmful to chilled water systems. Use
only glycols specically designated for use in building
cooling systems.
2. Drain the water from outdoor equipment and piping
and blow the chiller tubes dry from the chiller. Do not
energize the chiller heater when water is drained from
the vessel.
NOTE: The heaters come from the factory connected to
the control power circuit. The control power can be
rewired in the eld to a separate 115V supply (do
not wire directly to the heater). See the eld wiring
diagram on page 60. If this is done, it should power
the entire control circuit. Mark the disconnect switch
clearly to avoid accidental deactivation of the heater
during freezing temperatures. Exposed chilled water
piping also requires protection. If the evaporator is
drained for winter freeze protection, the heaters must
be de-energized to prevent heater burnout.
Table 3: Freeze Protection
% Volume Glycol Concentration Required
Temp.
°F (°C)
20 (6.7) 16 18 11 12
10 (-12.2) 25 29 17 20
0 (-17.8) 33 36 22 24
-10 (-23.3) 39 42 26 28
-20 (-28.9) 44 46 30 30
-30 (-34.4) 48 50 30 33
-40 (-40.0) 52 54 30 35
-50 (-45.6) 56 57 30 35
-60 (-51.1) 60 60 30 35
Notes: “Freeze protection” maintains the solution in a
For Freeze Protection For Burst Protection
Ethylene
Glycol
pumpable, usable liquid state. “Burst protection”
prevents pipes from rupturing, but solution may be in
a gel state and not pumpable. In most applications,
“burst” protection is sufcient; concentrations over
30% Ethylene Glycol or 35% Propylene Glycol will
result in efciency and capacity losses with negligible
protection increases and are not recommended.
These values are examples only and cannot be
appropriate to every situation. Generally, for an
extended margin of protection, select a temperature
at least 15°F lower than the expected lowest ambient
temperature. Inhibitor levels should be adjusted for
solutions less than 25% glycol.
Glycol of less than 25% concentration is not
recommended, unless inhibitors are adjusted,
because of the potential for bacterial growth and loss
of efciency.
Propylene
Glycol
Ethylene
Glycol
Propylene
Glycol
Flow Switch
A ow switch must be included in the chilled water system to
prove that there is adequate water ow before the unit can
start. It also serves to shut down the unit in the event that
water ow is interrupted in order to guard against evaporator
freeze-up.
A factory-mounted, solid state, thermal dispersion ow switch
is available as an option.
A eld-installed and wired version for remote evaporators is
also available as a kit (Accessory part number 332688401).
A paddle-type ow switch for eld mounting and wiring is also
available as a kit (Accessory part number 017503300). It is
adaptable to pipe sizes from 1” (25mm) to 8” (203mm).
Installation should be per manufacturer’s instructions included
with the switch. There is also a set of normally closed contacts
on the switch that can be used for an indicator light or an alarm
www.DaikinApplied.com 11 IOM 1202-2 • PATHFINDER® MODEL AWS CHILLERS
InsTallaTIon and sTarTup
to indicate when a “no ow” condition exists. Flow switches
should be calibrated to shut off the unit when operatred below
the minimum listed ow rate for the unit listed in the Pressure
Drop section beginning on page 82. The minimum required
pipe diameter before and after the switch is 1 1/4” (32 mm).
Figure 16: Flow Switch Diagram
Refrigerant Charge
All packaged units are designed for use with R-134a and are
shipped with a full operating charge. The operating charge for
each unit is shown in the Physical Data Tables in the current
catalog, available at www.DaikinApplied.com.
CAUTION
Do not use automotive grade antifreeze. Industrial grade
glycols must be used. Automotive antifreeze contains
inhibitors that will cause plating on the copper tubes within the
chiller evaporator. The type and handling of glycol used must
be consistent with local codes.
Performance Adjustment Factors
AWS chillers are designed to operate with leaving anti-freeze
solution temperatures per software range limits. Consult the
local Daikin Applied sales ofce for performance outside
these temperatures. Leaving chilled uid temperatures below
40°F (4.4°C) result in evaporating temperatures at or below
the freezing point of water and a glycol solution is required.
MicroTech® III control inhibits compressor unloading at leaving
uid temperatures below 30°F (-1°C).
Low uid temperatures or high equipment room humidity
may require optional double evaporator insulation. The
system designer should determine its necessity. The use of
glycol will reduce the performance of the unit depending on
its concentration. Take this into consideration during initial
system design. On glycol applications, the supplier typically
recommends that a minimum of 25% solution by weight be
used for protection against corrosion, or additional inhibitors
will be required.
Glycol Solutions
When using glycol anti-freeze solutions, the chiller’s capacity,
glycol solution ow rate, and pressure drop through the
evaporator can be calculated using the following:
Note: The procedure below does not specify the type of
glycol. Use the derate factors found in Table 4 or Table 5 for
corrections when using glycol.
1. Capacity - Cooling capacity is reduced from that with
plain water. To nd the reduced value, multiply the
chiller’s water system tonnage by the capacity correction
factor to nd the chiller’s capacity when using glycol.
2. Flow - To determine ow (or Delta-T) knowing Delta-T (or
ow) and capacity:
GPM = (24) (tons) (ow factor)
Delta T
3. Pressure drop - To determine pressure drop through the
evaporator when using glycol, enter the water pressure
drop curve at the water ow rate. Multiply the water
pressure drop found there by the “PD” factor to obtain
corrected glycol pressure drop.
4. Power - To determine glycol system kW, multiply the
water system kW by the factor designated “Power”.
Test coolant with a clean, accurate glycol solution hydrometer
(similar to that found in service stations) or refractometer
to determine the freezing point. Obtain percent glycol from
the freezing point table below. On glycol applications, the
supplier normally recommends that a minimum of 25% solution
by weight be used for protection against corrosion or that
additional inhibitors should be employed.
Table 4: Ethylene Glycol Correction Factors
Freeze Point
%
E.G
oF oC
10 26 -3.3 0.996 0.998 1.036 1.097
20 18 -7.8 0.988 0.994 1.061 1.219
30 7 -13.9 0.979 0.991 1.092 1.352
40 -7 -21.7 0.969 0.986 1.132 1.532
50 -28 -33.3 0.958 0.981 1.182 1.748
Capacity Power Flow PD
Table 5: Propylene Glycol Correction Factors
Freeze Point
%
P. G
oF oC
10 26 -3.3 0.991 0.996 1.016 1.092
20 19 -7.2 0.981 0.991 1.032 1.195
30 9 -12.8 0.966 0.985 1.056 1.345
40 -5 -20.6 0.947 0.977 1.092 1.544
50 -27 -32.8 0.932 0.969 1.14 1.906
Capacity Power Flow PD
IOM 1202-2 • PATHFINDER® MODEL AWS CHILLERS 12 www.DaikinApplied.com
Electrical Connections
All wiring must be done in accordance with applicable local
and national codes. Pathnder® units can be ordered with
either standard multi-point power or optional single point power
connections and with various disconnect and circuit breaker
options. Wiring within the unit is sized in accordance with the
U.S.A. National Electrical Code. Field-supplied disconnect
switches are required if not factory-supplied with the unit.
Table 6: Electric Power Connection Option
Multi-Point
Power Connection
Standard:
Disconnect switch per circuit,
no compressor isolation
circuit breakers
Optional:
High short circuit current
rated panel with disconnect
switch and no isolation circuit
breakers
NOTE: Disconnect switches are molded case construction
with lockable through-the-door handles. They can
be used to remove the unit/circuit from the power
system.
The individual compressor isolation circuit breakers
for each circuit isolate the compressor and do not
have through-the-door handles. They are operable
only after the panel doors are opened.
The high short circuit rated panel means that a short
circuit current up to the ratings shown below will be
contained in the panel. There is a short period of
time when the circuit breaker will short circuit before
opening a circuit that can damage downstream
components. In other words, the enclosure is stronger
than a standard enclosure. It has a high interrupt
rated disconnect switch.
The factory-mounted control power transformer is
protected by fuses. Condenser fans are protected
and isolated by circuit breakers.
one power block, compressor
Single-Point
Power Connection
Optional:
isolation circuit breakers
Optional:
one disconnect switch
replacing the power block,
compressor isolation circuit
breakers
Optional:
High short circuit current
rated panel with disconnect
switch and compressor
isolation circuit breakers
InsTallaTIon and sTarTup
Disconnecting means are addressed by Article 440 of the
U.S.A. National Electrical Code (NEC), which requires
“disconnecting means capable of disconnecting air conditioning
and refrigerating equipment including motor-compressors,
and controllers from the circuit feeder.” Select and locate
the disconnect switch per the NEC guidelines. Maximum
recommended fuse sizes are given in the electrical data tables
of this catalog for help in sizing the disconnect.
Terminals are provided in a unit control panel for optional
eld hookup of the control circuit to a separate fused 115-volt
power supply in lieu of the standard factory installed control
transformer.
RapidRestore® Options
This option does not require eld installation. Exception: Field
supplied inputs are required in the case of a backup unit being
started after the power interruption rather than restarting the
primary unit. A eld supplied control (normally a BAS) must
turn off the Backup Chiller connection on the primary chiller
and turn on the connection on the backup chiller at the time of
switching. See the unit Field Wiring Diagram on page 60 for
the Backup Unit connection point (terminals #61 and #62).
Economizer Components
The chiller may or may not have economizers depending on
design capacity requirements. An economizer is a well-proven
device to increase a refrigerant circuit’s capacity and efciency.
Warm liquid from the condenser is fed into the economizer
where it is cooled by ashing off liquid also from the condenser.
The ash gas is piped to a compressor interstage point.
Lowering the liquid refrigerant temperature to the evaporator
decreases its enthalpy (heat content) and results in a greater
amount of heat absorption from the chilled water.
Figure 17: Economizer Components
Table 7: Interrupt Ratings (kAmps)
Voltage
208-230V / 60Hz 10kA 100kA
380V / 60Hz 10kA 65kA
460V / 60Hz 10kA 65kA
575V / 60Hz 5kA 25kA
400V / 50Hz 10kA 65kA
www.DaikinApplied.com 13 IOM 1202-2 • PATHFINDER® MODEL AWS CHILLERS
Standard Short Circuit
Rated Panel
High Short Circuit
Rated Panel
Figure 18: Piping Schematic with Economizer Circuit, One Circuit Shown
SCHRADER
VALV E
(OPTIONAL)
BUTTERFLY
SUCTION
TRANSDUCER
TUBING
SUCTION
InsTallaTIon and sTarTup
SUCTION
TEMP. SENSOR
OIL PRESS.
TRANSDUCER
VALV E
CHECK
331994701 REV. 0D
WITH ECONOMIZER
VALV E
AWS PACKAGE CHILLER
(HEADER)
SCHRADER
AIR
FLOW
VALV E
WITH SCHRADER
VALV E
SHUT-OFF
DISCHARGE
TRANSDUCER
TUBING
DISCHARGE
VALV E
RELIEF
(WAA)
OUTSIDE AIR
TEMPERATURE
F3/F4
COMPRESSOR
DISCHARGE
TEMP. SENSOR
VALV E
CHECK
VALV E
SOLENOID
STRAINER
LIQUID
TUBING
INJECTION
VALV E
SCHRADER
BALL
VALV E
ECONOMIZER FLASH GAS TO COMPRESSOR INTERSTAGE
at evaporator inlet
Note: Provide 20-mesh strainer
VALV E
SOLENOID
WATER IN
(WIE)
(WOE)
WATER OUT
TGE
VALV E
EXPANSION
TEMP. SENSOR
TEMP. SENSOR
VALV E
RELIEF
DX EVAPORATOR
VALV E
CHARGING
VALV E
EXPANSION
VALV E
SCHRADER
VALV E
SOLENOID
(OPTIONAL)
ECONOMIZER
ASSEMBLY
CONDENSER
VALV E
SCHRADER
VALV E
CHARGING
BALL
VALV E
AIR
LIQUID
FLOW
TUBING
VALV E
SCHRADER
VALV E
SIGHT
GLASS
VALV E
SCHRADER
VALV E
CHARGING
FILTER
DRYER
IOM 1202-2 • PATHFINDER® MODEL AWS CHILLERS 14 www.DaikinApplied.com
Figure 19: Piping Schematic without Economizer Circuit, One Circuit Shown
TUBING
SCHRADER
TUBING
SUCTION
VALV E
(OPTIONAL)
BUTTERFLY
SUCTION
TRANSDUCER
VALV E
OIL PRESS.
TRANSDUCER
WITH SCHRADER
VALV E
SHUT-OFF
F3/F4
COMPRESSOR
VALV E
SOLENOID
at evaporator inlet
Note: Provide 20-mesh strainer
WATER IN
InsTallaTIon and sTarTup
SUCTION
TEMP. SENSOR
VALV E
RELIEF
DISCHARGE
TRANSDUCER
TUBING
DISCHARGE
VALV E
(HEADER)
SCHRADER
331994701 REV. 0D
AWS PACKAGE CHILLER
AIR
FLOW
ASSEMBLY
CONDENSER
VALV E
RELIEF
SCHRADER
VALV E
CHARGING
DISCHARGE
TEMP. SENSOR
OUTSIDE AIR
VALV E
(WAA)
TEMPERATURE
LIQUID
TUBING
INJECTION
AIR
FLOW
STRAINER
VALV E
SCHRADER
BALL
VALV E
(WIE)
(WOE)
WATER OUT
TEMP. SENSOR
TEMP. SENSOR
DX EVAPORATOR
VALV E
CHARGING
VALV E
EXPANSION
VALV E
SOLENOID
(OPTIONAL)
VALV E
SCHRADER
SIGHT
GLASS
BALL
VALV E
VALV E
LIQUID
VALV E
CHARGING
FILTER
DRYER
www.DaikinApplied.com 15 IOM 1202-2 • PATHFINDER® MODEL AWS CHILLERS
Figure 20: 10 Fan Non-VFD Models
5820
229.1
2225
87.6
4910
193.3
4791
188.6
lIfTIng and MounTIng InforMaTIon
lIfTIng and MounTIng InforMaTIon
2100
82.7
M3L3
600
23.6
L1M1M5
431
17.0
100
3.9
190
7.5
AWS DIMENSIONAL DAT A - WEIGHTS IN LBS. L IFTING WEIGHT FOR EACH POINT LB M OUNTING LOADS FOR EACH POINT L B
UNIT SIZE VOLT AGE HZ. STARTER
AWS164CDS
AWS190CDS
UNIT SIZE VOLT AGE HZ. ST ARTER
AWS164CDS
AWS190CDS
400V - 50HZ WYE DELTA 12535 12778 3843 3825 2439 2428 2670 2658 2255 2245 1478 1472
380-575V - 60HZ SOLID STATE 12829 13072 4015 3997 2414 2403 2805 2792 2324 2313 1422 1415
208-575V - 60HZ W YE DELTA 12535 12778 3843 3825 2439 2428 2670 2658 2255 2245 1478 1472
AWS DIMENSIONAL DAT A - WEIGHTS IN KG. LIFTING WEIGHT FOR EACH POINT KG MO UNTING LOADS F OR EACH POINT KG
400V - 50HZ W YE DELTA 5686 5796 1743 1735 1106 1101 1211 1206 1023 1018 670 668
380-575V - 60HZ SOLID STATE 5819 5929 1821 1813 1095 1090 1272 1266 1054 1049 645 642
208-575V - 60HZ W YE DELTA 5686 5796 1743 1735 1106 1101 1211 1206 1023 1018 670 668
SHIPPING
WEI GHT
SHIPPING
WEI GHT
OPE RATI NG
WEI GHT
OPE RATI NG
WEI GHT
COPPER
FIN ADD
1786 10
COPPER
FIN ADD
810 10
# OF
FANS
# OF
FANS
CONTROL BOX
M4L4 L 2M 2M6
L1 L 2 L3 L4 M1 M2 M3 M4 M5 M6
L1 L 2 L3 L4 M1 M2 M3 M4 M5 M6
AWS 10 FAN DIM. DWG
330973501
0A
IOM 1202-2 • PATHFINDER® MODEL AWS CHILLERS 16 www.DaikinApplied.com
Figure 21: 12 Fan Non-VFD Models
380-575V - 60HZ WYE DELTA 6255 6365 1943 1934 1192 1186 1353 1347 1129 1123 708 705
lIfTIng and MounTIng InforMaTIon
190
7.5
2225
87.6
5820
229.1
100
3.9
AWS DIME NSIONAL DAT A - WEIGHTS IN LBS. LIFT ING WEIGHT FO R EACH POINT LB M OUNTING L OADS FO R EACH POINT LB
UNIT SIZE VOL TAGE HZ. S TARTER
AWS174CDH
AWS184CDS
AWS204CDS
AWS210CDH
AWS210CDS
AWS225CDS
UNIT SIZE VOL TAGE HZ. S TARTER
AWS174CDH
AWS184CDS
AWS204CDS
AWS210CDH
AWS210CDS
AWS225CDS
400V - 50HZ WYE DELTA 13174 13357 3823 3805 2779 2767 2598 2586 2314 2303 1782 1773
400V - 50HZ WYE DELTA 13290 13503 4154 3968 2643 2525 2876 2747 2431 2323 1599 1527
400V - 50HZ WYE DELTA 13789 14032 4283 4264 2627 2615 2982 2969 2488 2477 1562 1555
380-575V - 60HZ SOLID STATE 13470 13653 3999 3981 2751 2739 2737 2724 2383 2373 1722 1714
208-575V - 60HZ WYE DELTA 13174 13357 3823 3805 2779 2767 2598 2586 2314 2303 1782 1773
380-575V - 60HZ SOLID STATE
208-230V - 60HZ WYE DELTA
380-575V - 60HZ WYE DELTA 13290 13503 4154 3968 2643 2525 2876 2747 2431 2323 1599 1527
380-575V - 60HZ SOLID STATE
208-230V - 60HZ WYE DELTA
380-575V - 60HZ WYE DELTA 13789 14032 4283 4264 2627 2615 2982 2969 2488 2477 1562 1555
AWS DIME NSIONAL DAT A - WEIGHT S IN KG. LIFTING WEIG HT FOR EAC H POINT K G MO UNTING LO ADS FOR EAC H POINT K G
400V - 50HZ WYE DELTA 5976 6059 1734 1726 1261 1255 1179 1173 1050 1045 808 804
400V - 50HZ WYE DELTA 6028 6125 1884 1800 1199 1145 1304 1246 1103 1054 725 693
400V - 50HZ WYE DELTA 6255 6365 1943 1934 1192 1186 1353 1347 1129 1123 708 705
380-575V - 60HZ SOLID STATE 6110 6193 1814 1806 1248 1242 1241 1236 1081 1076 781 778
208-575V - 60HZ WYE DELTA 5976 6059 1734 1726 1261 1255 1179 1173 1050 1045 808 804
380-575V - 60HZ SOLID STATE
208-230V - 60HZ WYE DELTA
380-575V - 60HZ WYE DELTA 6028 6125 1884 1800 1199 1145 1304 1246 1103 1054 725 693
380-575V - 60HZ SOLID STATE
208-230V - 60HZ WYE DELTA
AWS 12 FAN DIM. DWG
330973502
4910
193.3
4791
188.6
M3L3
M4L4 L 2M 2M6
SHIPP ING
OPE RATING
WEIG HT
SHIPP ING
WEIG HT
WEIG HT
13575 13788 4320
14092 14335 4459 4439 2603 2591
OPE RATING
WEIG HT
6158 6254 1960
6392 6502 2023 2014 1181 1175
COPPER
FIN AD D
1786 12
COPPER
FIN AD D
810 12
# OF
L1 L2 L3 L4 M1 M2 M3 M4 M5 M6
FANS
4126 2623 2506 3005 2871 2498
# OF
L1 L2 L3 L4 M1 M2 M3 M4 M5 M6
FANS
1872 1190 1137 1363 1302 1133
0A
2100
82.7
3121 3106 2558 2547 1505 1498
1416 1409 1160 1155 683 680
600
23.6
431
17.0
L1M1M5
CONTROL BOX
2387 1548 1479
1083 702 671
www.DaikinApplied.com 17 IOM 1202-2 • PATHFINDER® MODEL AWS CHILLERS
Figure 22: 14 Fan Non-VFD Models
431
lIfTIng and MounTIng InforMaTIon
17.0
CONTROL BOX
4910
193.3
4791
188.6
82.7
2100
600
23.6
L1M1M3M7
0A
AWS 14 FAN DIM. DWG
330973503
6720
264.6
6310
248.4
66
L 3M 5
L 4M 6 L 2M 2M4M8
3.9
100
2.6
87.6
2225
190
7.5
IOM 1202-2 • PATHFINDER® MODEL AWS CHILLERS 18 www.DaikinApplied.com
Figure 23: 14 Fan Non-VFD Models (continued)
UNIT SIZE VOL TAG E HZ. S TART ER
AWS2 04CDH
400V 50HZ WYE DELTA 14740 14863 3983 3770 3589 3398 2976 2818 2420 2291 1379 1305 860 814
AWS224-234CDS
400V 50HZ WYE DELTA 14714 14887
AWS2 24CDH
400V 50HZ WYE DELTA 15420 15523
380-575V 60HZ SOLID STATE
208-230V 60HZ WYE DELTA
380-575V 60HZ WYE DELTA 14740 14863
380-575V 60HZ SOLID STATE
208-230V 60HZ WYE DELTA
380-575V 60HZ WYE DELTA 14714 14887
380-575V 60HZ SOLID STATE
208-230V 60HZ WYE DELTA
380-575V 60HZ WYE DELTA 15420 15523
UNIT SIZE VOL TAG E HZ. S TART ER
AWS2 04CDH
400V 50HZ WYE DELTA 6686 6742
AWS224-234CDS
400V 50HZ WYE DELTA 6674 6753
AWS2 24CDH
400V 50HZ WYE DELTA 6995 7041
380-575V 60HZ SOLID STATE
208-230V 60HZ WYE DELTA
380-575V 60HZ WYE DELTA 6686 6742
380-575V 60HZ SOLID STATE
208-230V 60HZ WYE DELTA
380-575V 60HZ WYE DELTA 6674 6753
380-575V 60HZ SOLID STATE
208-230V 60HZ WYE DELTA
380-575V 60HZ WYE DELTA 6995 7041
AWS DIMENSIO NAL DATA - WEIGHTS IN LBS .
AWS2 30CDH
AWS250-260CDS
AWS2 50CDH
AWS DIMENSIO NAL DATA - WEIGHTS IN KG.
AWS2 30CDH
AWS250-260CDS
AWS2 50CDH
lIfTIng and MounTIng InforMaTIon
L1 L 2 L3 L4 M1 M 2 M3 M4 M5 M6 M7 M8
LIFT ING WEIGHT F OR EACH POINT LB MOUNT ING LOADS F OR EACH POINT LB
# OF
0A
COPPER
OP ERAT ING
330973503
SHIPPING
AWS 14 FAN DIM. DWG
FANS
FIN ADD
WEI GH T
WEI GHT
4092 4092 3619 3619 3048 3048 2471 2471 1390 1390 852 852
3983 3770 3589 3398 2976 2818 2420 2291 1379 1305 860 814
4141 4122 3233 3218 3073 3059 2444 2433 1266 1260 679 676
4141 4122 3233 3218 3073 3059 2444 2433 1266 1260 679 676
2084 14
15042 15165 4168 3928 3576 3370 3103 2924 2503 2359 1380 1301 821 774
15015 15188 4313 4294 3212 3197 3190 3175 2519 2508 1264 1258 638 635
4092 4092 3619 3619 3048 3048 2471 2471 1390 1390 852 852
15722 15825 4277 4258 3601 3585 3175 3160 2554 2542 1391 1385 811 808
L1 L 2 L3 L4 M1 M 2 M3 M4 M5 M6 M7 M8
LIFT ING WEIGHT F OR EACH POINT KG M OUNTING LOADS FOR EACH POINT LB
# OF
COPPER
OP ERAT ING
SHIPPING
FANS
FIN ADD
WEI GH T
WEI GHT
1856 1856 1641 1641 1383 1383 1121 1121 631 631 386 386
1807 1710 1628 1541 1350 1278 1098 1039 625 592 390 369
1878 1870 1467 1460 1394 1387 1108 1103 574 571 308 306
1878 1870 1467 1460 1394 1387 1108 1103 574 571 308 306
1807 1710 1628 1541 1350 1278 1098 1039 625 592 390 369
945 14
6823 6879 1891 1782 1622 1529 1407 1326 1135 1070 626 590 372 351
6811 6889 1956 1948 1457 1450 1447 1440 1143 1138 573 571 290 288
1856 1856 1641 1641 1383 1383 1121 1121 631 631 386 386
7131 7178 1940 1931 1634 1626 368 3661440 1433 1158 1153 631 628
www.DaikinApplied.com 19 IOM 1202-2 • PATHFINDER® MODEL AWS CHILLERS
Figure 24: 16 Fan Non-VFD Models
431
lIfTIng and MounTIng InforMaTIon
17.0
CONTROL BOX
0A
330973504
4910
193.3
4791
L1M1M3L3L5L7
23.6
2381
600
82.7
2100
93.7
M4M8 L 2M 2M6 L4L6L8
188.6
M5M7
6791
7210
267.4
7.5
283.9
3.9
100
66
2.6
87.6
2225
190
AWS 16 FAN DIM. DWG
7620
300.0
IOM 1202-2 • PATHFINDER® MODEL AWS CHILLERS 20 www.DaikinApplied.com
Figure 25: 16 Fan Non-VFD Models (continued)
UNIT SIZE VOLT AGE HZ. START ER
L1 L2 L3 L4 L5 L6 L7 L8 M1 M2 M3 M4 M5 M6 M7 M8
AWS194CDP
400V - 50HZ W YE DELTA
2648 2636 2256 2246 1772 1764 1370 1364 2813 2800 2477 2466 1849 1841 1335 1329
380-575V - 60HZ SOLID STATE 16358 17210 2766 2754 2325 2314 1779 1771 1327 1321 2926 2912 2554 2542 1857 1849 1287 1282
208-575V - 60HZ WYE DELTA
2648 2636 2256 2246 1772 1764 1370 1364 2813 2800 2477 2466 1849 1841 1335 1329
AWS244-264CDH
400V - 50HZ W YE DELTA
3048 3034 2467 2455 1749 1741 1153 1147 3103 3089 2642 2630 1780 1772 1074 1069
AWS264CDS
400V - 50HZ W YE DELTA
3294 3176 2578 2486 1693 1632 958 924 3344 3224 2785 2685 1739 1677 883 851
380-575V - 60HZ SOLID STATE
208-575V - 60HZ W YE DELTA
380-575V - 60HZ WYE DELTA
3048 3034 2467 2455 1749 1741 1153 1147 3103 3089 2642 2630 1780 1772 1074 1069
AWS284CDS
400V - 50HZ W YE DELTA
3426 3426 2658 2658 1709 1709 922 922 3465 3465 2870 2870 1756 1756 843 843
380-575V - 60HZ SOLID STATE 17044 17491 3414 3292 2648 2553 1701 1640 915 882 3457 3333 2862 2760 1749 1686 837 807
380-575V - 60HZ W YE DELTA
3294 3176 2578 2486 1693 1632 958 924 3344 3224 2785 2685 1739 1677 883 851
380-575V - 60HZ SOLID STATE 17724 18161 3547 3531 2730 2718 1721 1713 883 879 3580 3563 2950 2936 1769 1761 803 799
3426 3426 2658 2658 1709 1709 922 922 3465 3465 2870 2870 1756 1756 843 843
UNIT SIZE VOLT AGE HZ. START ER
L1L2L3L4L5L6L7L8M1M2M3M4M5M6M7M8
AWS194CDP
400V - 50HZ W YE DELTA
1201 1196 1023 1019 804 800 621 619 1276 1270 1124 1119 839 835 605 603
380-575V - 60HZ SOLID STATE 7420 7806 1255 1249 1055 1050 807 803 602 599 1327 1321 1158 1153 843 839 584 581
208-575V - 60HZ WYE DELTA
1201 1196 1023 1019 804 800 621 619 1276 1270 1124 1119 839 835 605 603
AWS244-264CDH
400V - 50HZ W YE DELTA
1382 1376 1119 1114 793 790 523 520 1407 1401 1199 1193 807 804 487 485
AWS264CDS
400V - 50HZ W YE DELTA
1494 1441 1169 1127 768 740 435 419 1517 1462 1263 1218 789 761 401 386
380-575V - 60HZ SOLID STATE
208-575V - 60HZ W YE DELTA
380-575V - 60HZ WYE DELTA
1382 1376 1119 1114 793 790 523 520 1407 1401 1199 1193 807 804 487 485
AWS284CDS
400V - 50HZ W YE DELTA
1554 1554 1206 1206 775 775 418 418 1572 1572 1302 1302 796 796 383 383
380-575V - 60HZ SOLID STATE 7731 7934 1549 1493 1201 1158 771 744 415 400 1568 1512 1298 1252 793 765 380 366
380-575V - 60HZ W YE DELTA
1494 1441 1169 1127 768 740 435 419 1517 1462 1263 1218 789 761 401 386
380-575V - 60HZ SOLID STATE 8039 8238 1609 1602 1239 1233 781 777 401 399 1624 1616 1338 1332 802 799 364 362
1554 1554 1206 1206 775 775 418 418 1572 1572 1302 1302 796 796 383 383
AWS290CDS
AWS310CDS
AWS DIMENSIO NAL DATA - WEIGHTS IN KG.
AWS240CDP
AWS280-300CDH
AWS290CDS
AWS310CDS
AWS DIMENSIO NAL DATA - WEIGHTS IN LBS .
AWS240CDP
AWS280-300CDH
lIfTIng and MounTIng InforMaTIon
0A
330973504
LIFT ING WEIGHT F OR EACH POINT LB MOUNT ING LOADS FO R EACH POINT LB
1786 1028 1028
1108 3206 3206 2711 2711 17863158 2529 2529 1752 1752 1108
810 466 466
502 1454 1454 1230 1230 8101432 1147 1147 795 795 502
LIFT ING WEIGHT F OR EACH POINT KG MO UNTI NG LO ADS F OR EACH P OINT KG
# OF
FANS
# OF
FANS
AWS 16 FAN DIM. DWG
FIN ADD
COPPER
WEIG HT
OP ERAT ING
16057 16909
16057 16909
WEIG HT
SHIP PING
2372 16
16793 17160
16741 17188
17094 17461 3158
16793 17160
17432 17869
16741 17188
WYE DELTA 17432 17869
380-575V - 60HZ
FIN ADD
COPPER
WEIG HT
OP ERAT ING
7283 7670
7283 7670
WEIG HT
SHIP PING
1076 16
7617 7784
7594 7796
7754 7920 1432
7617 7784
7907 8105
7594 7796
WYE DELTA 7907 8105
380-575V - 60HZ
www.DaikinApplied.com 21 IOM 1202-2 • PATHFINDER® MODEL AWS CHILLERS
Figure 26: 18 Fan Non-VFD Models
2381
lIfTIng and MounTIng InforMaTIon
600
23.6
431
17.0
L1M1M5 L3L5L7
82.7
2100
93.7
M3M7
CONTROL BOX
L 2M 2M 4L 4L6
0A
330973505
AWS 18 FAN DIM. DWG
8110
8520
335.5
4791
188.6
4910
193.3
M6
7484
294.6
7.5
190
319.3
L8
3.9
100
M8
87.6
66
2.6
2225
IOM 1202-2 • PATHFINDER® MODEL AWS CHILLERS 22 www.DaikinApplied.com
Figure 27: 18 Fan Non-VFD Models (continued)
UNIT SIZE V OLT AGE HZ. ST ARTE R
AWS214CDP
400V - 50HZ WYE DELTA
AWS244CDP
400V - 50HZ WYE DELTA
380-575V - 60HZ SOLID STATE
208-230V - 60HZ WYE DELTA
380-575V - 60HZ WYE DELTA
380-575V - 60HZ SOLID STATE
208-230V - 60HZ WYE DELTA
380-575V - 60HZ WYE DELTA
UNIT SIZE V OLT AGE HZ.
AWS214CDP
400V - 50HZ WYE DELTA
AWS244CDP
400V - 50HZ WYE DELTA
380-575V - 60HZ SOLID STATE
208-230V - 60HZ WYE DELTA
380-575V - 60HZ WYE DELTA
380-575V - 60HZ SOLID STATE
208-230V - 60HZ WYE DELTA
380-575V - 60HZ WYE DELTA
AWS290CDP
AWS265CDP
AWS DIMENSIO NAL DATA - WEIGHTS IN LBS .
AWS265CDP
AWS290CDP
AWS DIMENSIO NAL DATA - WEIGHTS IN KG.
1430 13792151 2074
3014 2363 2363 1622 1622
3121 3009 2784 2684
2237 1694
lIfTIng and MounTIng InforMaTIon
941 649 625
1367 1367 1072 1072 736 7361015 1015 769 769 1525 1525
664 1416 1365 1263 1217 9761288 1157 1115 936 902 689
LIFT ING WEIGHT F OR EACH POINT LB MOUNT ING LOADS FOR EACH PO INT LB
0A
330973505
AWS 18 FAN DIM. DWG
L1 L2 L3 L4 L5 L6 L7 L8 M1 M2 M3 M4 M5 M6 M7 M8
# OF
FANS
FIN ADD
COPPER
WEI GH T
OP ERAT ING
WEI GH T
SHIPPING
2723 2237
LIFT ING WEIGHT F OR EACH POINT KG MOUNT ING LOADS F OR EACH POINT KG
L1 L2 L3 L4 L5 L6 L7 L8 M1 M2 M3 M4 M5 M6 M7 M8
# OF
FANS
2679 18
19539 20722 3115 3115 2723 1694 3361 3361 3014
17829 18631 2944 2839 2550 2459 2063 1989 1519 1465
17527 18329 2826 2737 2476 2398 2043 1979 1559 1510 3009 2914 2702 2617 2127 2060 1473 1427
17527 18329 2826 2737 2476 2398 2043 1979 1559 1510 3009 2914 2702 2617 2127 2060 1473 1427
19237 20420 3006 3006 2655 2655 2221 2221 1736 1736 3257 3257 2940 2940 2345 2345 1668 1668
19237 20420 3006 3006 2655 2655 2221 2221 1736 1736 3257 3257 2940 2940 2345 2345 1668 1668
FIN ADD
COPPER
WEI GH T
OP ERAT ING
WEI GH T
SHIPPING
WEI GH T
SHIPPING
7950 8314 1282 1241 1123 1088 927 898 707 685 1365 1322 1226 1187 965 935 668 647
1215 18
8726 9262 1363 1363 1204 1204 1008 1008 788 788 1477 1477 1333 1333 1064 1064 757 757
7950 8314 1282 1241 1123 1088 927 898 707 685 1365 1322 1226 1187 965 935 668 647
8726 9262 1363 1363 1204 1204 1008 1008 788 788 1477 1477 1333 1333 1064 1064 757 757
8863 9399 1413 1413 1235 1235
8087 8451 1336
www.DaikinApplied.com 23 IOM 1202-2 • PATHFINDER® MODEL AWS CHILLERS
Figure 28: 20 Fan Non-VFD Models
2225
lIfTIng and MounTIng InforMaTIon
0A
4910
193.3
2381
431
17.0
600
82.7
2100
93.7
L1M1M3L3L7
23.6
CONTROL BOX
330973506
AWS 20 FAN DIM. DWG
9010
9421
370.9
5961
234.7
L5 M5M7
L6 M6M8 L 2M 2M 4L 4L8
66
8384
330.1
354.7
2.6
190
100
7.5
3.9
87.6
IOM 1202-2 • PATHFINDER® MODEL AWS CHILLERS 24 www.DaikinApplied.com
Figure 29: 20 Fan Non-VFD Models (continued)
UNIT SIZE VOLT AGE HZ. ST ARTE R
AWS264-284CDP
400V - 50HZ W YE DELTA
AWS294CDH
400V - 50HZ W YE DELTA
380-575V - 60HZ SOLID STATE
208-230V - 60HZ W YE DELTA
380-575V - 60HZ W YE DELTA
AWS314CDH
400V - 50HZ W YE DELTA
AWS314-334CDS
400V - 50HZ W YE DELTA
460-575V - 60HZ SOLID STATE 19442 19764
380-575V - 60HZ W YE DELTA
460-575V - 60HZ SOLID STATE 19466 19803
380-575V - 60HZ W YE DELTA
460-575V - 60HZ SOLID STATE 20147 20444
380-575V - 60HZ W YE DELTA
UNIT SIZE VOLT AGE HZ. ST ARTE R
AWS264-284CDP
400V - 50HZ W YE DELTA
AWS294CDH
400V - 50HZ W YE DELTA
380-575V - 60HZ SOLID STATE
208-230V - 60HZ W YE DELTA
380-575V - 60HZ W YE DELTA
AWS314CDH
400V - 50HZ W YE DELTA
AWS314-334CDS
400V - 50HZ W YE DELTA
460-575V - 60HZ SOLID STATE 8819 8965
380-575V - 60HZ W YE DELTA
460-575V - 60HZ SOLID STATE 8830 8983
380-575V - 60HZ W YE DELTA
460-575V - 60HZ SOLID STATE 9139 9273
380-575V - 60HZ W YE DELTA
AWS330CDH
AWS350-375CDS
AWS350CDH
AWS DIMENSIO NAL DATA - WEIGHTS IN KG.
AWS310-330CDP
AWS330CDH
AWS350-375CDS
AWS350CDH
AWS DIMENSIO NAL DATA - WEIGHTS IN LB S.
AWS310-330CDP
lIfTIng and MounTIng InforMaTIon
0A
LIFT ING WEIGHT F OR EACH POINT LB M OUNTING L OADS FOR EACH POINT LB
L1 L2 L3 L 4 L5 L 6 L 7 L8 M1 M2 M3 M4 M5 M6 M7 M8
330973506
# OF
FANS
1839 1839
3321 3321 3057 3057 2562 25622965 2965 2193 2193 1671 1671
3573 3445 3018 2910 1998 1927 1308 1262 3355 3235 3001 2893 2337 2253 1369 1320
3666 3666 3043 3043 1899 1899 1124 1124 3434 3434 3030 3030 2272 2272 1166 1166
3699 3699 3102 3102 2007 2007 1266 1266 3462 3462 3080 3080 2363 2363 1317 1317
834 834
1506 1506 1387 1387 1162 11621345 1345 995 995 758 758
LIFT ING WEIGHT F OR EACH POINT KG M OUNTING LOADS FOR EACH POINT K G
L1 L 2 L 3 L4 L 5 L 6 L7 L 8 M1 M2 M3 M4 M5 M6 M7 M8
# OF
FANS
1621 1563 1369 1320 906 874 594 572 1522 1467 1361 1312 1060 1022 621 599
1663 1663 1380 1380 861 861 510 510 1558 1558 1374 1374 1030 1030 529 529
1678 1678 1407 1407 910 910 574 574 1571 1571 1397 1397 1072 1072 597 597
20124 21257 3278 3278 2893 2893 2185 2185 1706 1706 3223 3223 2984 2984 2537 2537 1884 1884
2968 20
19164 19501 3558 3558 2970 2970 1892 1892 1162 1162 3337 3337 2958 2958 2247 2247 1209 1209
19139 19461 3463 3338 2944 2838 1991 1920 1347 1298 3256 3139 2927 2822 2312 2229 1414 1363
19164 19501 3558 3558 2970 2970 1892 1892 1162 1162 3337 3337 2958 2958 2247 2247 1209 1209
19846 20143 3592 3592 3031 3031 1999 1999 1301 1301 3367 3367 3009 3009 2338 2338 1358 1358
19846 20143 3592 3592 3031 3031 1999 1999 1301 1301 3367 3367 3009 3009 2338 2338 1358 1358
FIN AD D
COPPER
WEIG HT
AWS 20 FAN DIM. DWG
OP ERAT ING
20124 21257 3278 3278 2893 2893 2185 2185 1706 1706 3223 3223 2984 2984 2537 2537 1884 1884
19139 19461 3463 3338 2944 2838 1991 1920 1347 1298 3256 3139 2927 2822 2312 2229 1414 1363
WEIG HT
SHIPPING
20426 21559 3385 3385
FIN AD D
COPPER
WEIG HT
OP ERAT ING
9128 9642 1487 1487 1312 1312 991 991 774 774 1462 1462 1354 1354 1151 1151 855 855
8682 8827 1571 1514 1335 1287 903 871 611 589 1477 1424 1328 1280 1049 1011 641 618
WEIG HT
SHIPPING
9265 9779 1535 1535
9128 9642 1487 1487 1312 1312 991 991 774 774 1462 1462 1354 1354 1151 1151 855 855
1346 20
9002 9137 1630 1630 1375 1375 907 907 590 590 1527 1527 1365 1365 1060 1060 616 616
8693 8846 1614 1614 1347 1347 858 858 527 527 1514 1514 1342 1342 1019 1019 549 549
8682 8827 1571 1514 1335 1287 903 871 611 589 1477 1424 1328 1280 1049 1011 641 618
8693 8846 1614 1614 1347 1347 858 858 527 527 1514 1514 1342 1342 1019 1019 549 549
9002 9137 1630 1630 1375 1375 907 907 590 590 1527 1527 1365 1365 1060 1060 616 616
www.DaikinApplied.com 25 IOM 1202-2 • PATHFINDER® MODEL AWS CHILLERS
Figure 30: 22 Fan Non-VFD Models
431
lIfTIng and MounTIng InforMaTIon
17.0
CONTROL BOX
0A
330973507
6000
236.2
5401
L 1M 1M3L3L5L7
23.6
2381
600
82.7
2100
93.7
L4
212.6
L6L8
M6M8 L 2M 2M4
M5M7
8384
330.1
AWS 22 FAN DIM. DWG
9110
358.7
7.5
422.0
10720
3.9
2225
100
87.6
66
2.6
190
IOM 1202-2 • PATHFINDER® MODEL AWS CHILLERS 26 www.DaikinApplied.com
Figure 31: 22 Fan Non-VFD Models (continued)
UNIT SIZE VO LTAG E HZ. ST ARTER
L1 L2 L3 L4 L5 L6 L7 L8 M1 M2 M3 M4 M5 M6 M7 M8
AWS314CDP
400V - 50HZ WYE DELTA
3162 3063 2987 2893 2715 2629 2446 2369 3577 3465 3339 3234 2721 2635 2228 2157
AWS344CDH
400V - 50HZ WYE DELTA
3266 3251 2953 2940 2469 2458 1991 1982 3498 3482 3188 3174 2382 2371 1738 1730
460-575V - 60HZ SOLID STATE 22566 23659 3271 3168 3058 2962 2730 2644 2405 2329 3682 3566 3418 3311 2733 2647 2186 2117
380-575V - 60HZ WYE DELTA
3162 3063 2987 2893 2715 2629 2446 2369 3577 3465 3339 3234 2721 2635 2228 2157
460-575V - 60HZ SOLID STATE 21613 21864 3371 3356 3023 3009 2485 2473 1952 1944 3598 3581 3263 3249 2394 2384 1701 1694
380-575V - 60HZ WYE DELTA
3266 3251 2953 2940 2469 2458 1991 1982 3498 3482 3188 3174 2382 2371 1738 1730
UNIT SIZE VO LTAG E HZ. ST ARTER
L1 L2 L3 L4 L5 L6 L7 L8 M1 M2 M3 M4 M5 M6 M7 M8
AWS314CDP
400V - 50HZ WYE DELTA
1434 1389 1355 1312 1231 1193 1109 1075 1623 1572 1515 1467 1234 1195 1010 979
AWS344CDH
400V - 50HZ WYE DELTA
1481 1475 1340 1334 1120 1115 903 899 1587 1580 1446 1439 1080 1075 789 785
460-575V - 60HZ SOLID STATE 10236 10732 1484 1437 1387 1344 1238 1199 1091 1056 1670 1618 1550 1502 1240 1201 992 960
380-575V - 60HZ WYE DELTA
1434 1389 1355 1312 1231 1193 1109 1075 1623 1572 1515 1467 1234 1195 1010 979
460-575V - 60HZ SOLID STATE 9804 9917 1529 1522 1371 1365 1127 1122 886 882 1632 1624 1480 1474 1086 1081 772 768
380-575V - 60HZ WYE DELTA
1481 1475 1340 1334 1120 1115 903 899 1587 1580 1446 1439 1080 1075 789 785
AWS365CDP
AWS390CDH
AWS DIMENSIO NAL DATA - WEIGHTS IN LBS .
AWS365CDP
AWS390CDH
AWS DIMENSIO NAL DATA - WEIGHTS IN KG.
MO UNTI NG LO ADS F OR EACH P OINT LB
lIfTIng and MounTIng InforMaTIon
LIFT ING WEIGHT FO R EACH POINT LB
LIFT ING WEIGHT FO R EACH POINT KG M OUNT ING L OADS FOR EAC H POINT KG
0A
# OF
FANS
330973507
FIN ADD
COPPER
WEIG HT
OP ERAT ING
WEI GHT
AWS 22 FA N DIM. DWG
SHIP PING
3256 22
22264 23357
21312 21563
22264 23357
# OF
FANS
FIN ADD
COPPER
WEIG HT
OP ERAT ING
21312 21563
SHIP PING
WEI GHT
1477 22
9667 9781
10099 10595
9667 9781
10099 10595
www.DaikinApplied.com 27 IOM 1202-2 • PATHFINDER® MODEL AWS CHILLERS
Figure 32: 24 Fan 2-Circuit Non-VFD Models
CONTROL BOX
431
600
23.6
82.7
2100
93.7
2381
5401
212.6
lIfTIng and MounTIng InforMaTIon
L 1M 1M3L3L5M5M9
17.0
L4
413.4
10499
9962
392.2
8147
320.8
5949
234.2
0A
L6
M7L7
M6
M8L8 L 2M 2M4
330973508
AWS 24 FAN DIM. DWG
M10
3.9
2225
100
7.5
190
87.6
457.5
11620
66
2.6
IOM 1202-2 • PATHFINDER® MODEL AWS CHILLERS 28 www.DaikinApplied.com
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