Daikin Trailblazer AGZ030-101E User manual

Installation, Operation,
and Maintenance Manual
Trailblazer®
Air-Cooled Scroll Compressor Chillers
󰀩

30 to 241 Tons (100 to 840 kW)

50/60 Hz
IOM 1206-13
Group: Chiller
Part Number: IOM1206-13
Date: September 2020

IOM 1206-13 • TRAILBLAZER®MODEL AGZ CHILLERS 2 www.DaikinApplied.com


©2020 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.

 ..........5
 .......................18
Dimensions and Weights - Packaged Units ......24
 ...32
...........................38
 ..........................
Pressure Drop Data ..........................43
Electrical Data...............................47
Unit Controller Operation .....................52
 .......................63
 ..............................70
............................80
Alarms .....................................
Using the Controller..........................
...........................
Startup and Shutdown Procedures ............103
Unit Maintenance ...........................108
Troubleshooting Chart ......................114
............116
 ....................121

* Heat Recovery option is
outside the scope of AHRI
ACCL Certication Program.

Cut Here 
©2019 Daikin Applied Form SF-18002 19 Feb 2019
Pre-Start Checklist – Scroll Compressor Chillers
Must be completed, signed, and provided to Daikin Applied at least 2 weeks prior to requested start date.
Job Name
Installation Location
Customer Order Number
Model Number(s)
G.O. Number(s)
Chilled Water and Condenser Water for Water-cooled Chiller
Yes
No
N/A
Initials
Piping Complete
Water strainer(s) installed in piping per manual requirements
Water System – flushed, filled, and vented; Water treatment in place
Cooling tower flushed, filled, vented; Water treatment in place (if applicable)
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(es) - installed, wired, and calibrated
Vent installed on evaporator
Glycol at design % (if applicable)
Electrical
Yes
No
N/A
Initials
Building controls operational
*Power leads connected to power block or optional disconnect
Power leads have been checked for proper phasing and voltage
All interlock wiring complete and compliant with Daikin specifications
Power applied at least 12 hours before startup
Oil heaters energized at least 12 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 / Condenser Piping factory reviewed
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 piping approval
Notes: The most common problems delaying start-up and affecting unit reliability are:
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 NFPA 70-2017, Article 440.35
2. Remote Evaporator piping incomplete or incorrect. Provide approved piping diagrams.
3. Items on this list incorrectly acknowledged resulting in delayed start and possible extra expenses incurred by return trips.
Contractor Representative
Daikin Applied Sales Representative
Signed:
Signed:
Name:
Name:
Company:
Company:
Date:
Date:
Phone/Email:
Phone/Email:


www.DaikinApplied.com 5 IOM 1206-13 • TRAILBLAZER®MODEL AGZ CHILLERS

This manual provides installation, operation, and maintenance information for Daikin Trailblazer model AGZ-E air-cooled scroll
chillers with the MicroTech® III controller and using R-410A. Packaged unit congurations and optional heat recovery installations
are covered in this manual. Information for units with either the pump package or remote evaporator options can be found at www.
DaikinApplied.com.
NOTE: Installation and maintenance are to be performed only by qualied personnel who are familiar with local codes and
regulations, and experienced with this type of equipment.

LOCKOUT/TAGOUT all power sources prior to starting, pressurizing, de-pressuring, or powering down the Chiller. Failure to follow
this warning exactly can result in serious injury or death. Be sure to read and understand the installation, operation, and service
instructions within this manual.

Electric shock hazard. Improper handling of this equipment can cause personal injury or equipment damage. This equipment must
be properly grounded. Connections to and service of the MicroTech®III control panel must be performed only by personnel that are
knowledgeable in the operation of the equipment being controlled.
CAUTION
Static sensitive components. A static discharge while handling electronic circuit boards can cause damage to the components. Use
a static strap before performing any service work. Never unplug any cables, circuit board terminal blocks, or power plugs while
power is applied to the panel.
CAUTION
When moving refrigerant to/from the chiller using an auxiliary tank, a grounding strap must be used. An electrical charge builds
when halo-carbon refrigerant travels in a rubber hose. A grounding strap must be used between the auxiliary refrigerant tank and
the chiller’s end sheet (earth ground), which will safely take the charge to the ground. Damage to sensitive electronic components
could occur if this procedure is not followed.

Escaping refrigerant can displace air and cause su󰀨ocation. 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.

Polyolester Oil, commonly known as POE oil is a synthetic oil used in many refrigeration systems, and may be present in this Daikin
product. POE oil, if ever in contact with PVC/CPVC, will coat the inside wall of PVC/CPVC pipe causing environmental stress
fractures. Although there is no PVC/CPVC piping in this product, please keep this in mind when selecting piping materials for your
application, as system failure and property damage could result. Refer to the pipe manufacturer’s recommendations to determine
suitable applications of the pipe.


Dangers indicate a hazardous situation, which will result in death or serious injury if not avoided.

Warnings indicate potentially hazardous situations, which can result in property damage, severe personal injury, or death if not
avoided.
CAUTION
Cautions indicate potentially hazardous situations, which can result in personal injury or equipment damage if not avoided.
NOTE: Indicates important details or clarifying statements for information presented.

IOM 1206-13 • TRAILBLAZER®MODEL AGZ CHILLERS 6 www.DaikinApplied.com

General Description
Daikin Trailblazer®air-cooled water chillers are complete, self-
contained, automatic chillers designed for outdoor installation.
Packaged units are completely assembled, factory wired,
charged, and tested.
The electrical control center includes all equipment protection
and operating controls necessary for dependable automatic
operation. Components housed in a centrally located, weather
resistant control panel with hinged and tool-locked doors.
NOMENCLATURE
A G Z XXX E D SE

Table 1: Operating Limits for AGZ-E Chillers
Maximum standby ambient temperature 130°F (54°C)
Maximum operating ambient temperature 105°F (41°C)
-with optional high ambient package (see information under High Ambient Operation) 125°F (52°C)
Minimum operating ambient temperature (standard control) 32°F (0°C)
Minimum operating ambient temperature (with optional low-ambient control) -10°F (-23°C)
Leaving chilled water temperature 40°F to 65°F (4°C to 18°C)
Leaving chilled uid temperatures (with anti-freeze) - Note that in cases of high ambient
temperature, the lowest leaving water temperature settings may be outside of the chiller
operating envelope; consult Daikin Tools to ensure chiller is capable of the required lift.
15°F to 65°F (-9°C to 18°C)
Operating chilled water delta-T range 6°F to 16°F (3.3°C to 8.9°C)
Maximum evaporator operating inlet uid temperature 81°F (27°C)
Maximum evaporator non-operating inlet uid temperature 100°F (38°C)
Nameplates
Identication nameplates on the chiller:
• The unit nameplate is located on the exterior of the Unit
Power Panel. Both the Model No. and Serial No. are
located on the unit nameplate; the Serial No. is unique to
the unit. These numbers should be used to identify the
unit for service, parts, or warranty questions. This plate
also has the unit refrigerant charge and electrical ratings.
• Evaporator data plate is under insulation and contains
the serial number.
• Compressor nameplate is located on each compressor
and gives pertinent electrical information.

Installation is to be performed by qualied personnel who are
familiar with local codes and regulations.
CAUTION
Sharp edges and coil surfaces are a potential injury hazard.
Avoid contact with them.
Inspection
Check all items carefully against the bill of lading. Inspect
all units for damage upon arrival. Report shipping damage
and le a claim with the carrier. Check the unit nameplate
before unloading, making certain it agrees with the power
supply available. Daikin Applied is not responsible for physical
damage after the unit leaves the factory.
Handling
Be careful to avoid rough handling of the unit. Do not push or
pull the unit from anything other than the base while sitting on
appropriately-sized roller dollies.
To lift the unit, 2-1/2” (64mm) diameter lifting eyes are provided
on the base of the unit. Arrange spreader bars and cables to
prevent damage to condenser coils or cabinet (see Figure 1).
CAUTION
All lifting locations must be used to prevent damage to unit.
Air-Cooled
Global Design
Scroll Compressor
Application, E󰀩ciency, Unit Type
Design Vintage
Nominal Tons # of Compressors
D = Tandem per Circuit
T = Trio per Circuit


www.DaikinApplied.com 7 IOM 1206-13 • TRAILBLAZER®MODEL AGZ CHILLERS

Improper rigging, lifting, or moving of a unit can result in
property damage, severe personal injury or death. Follow
rigging and moving instructions carefully. Do not stand
beneath the unit while it is lifted or being installed.
Figure 1: Required Lifting Arrangement
Unit Placement
Trailblazer®units are for outdoor applications and can be
mounted either on a roof or at ground level. For roof mounted
applications, install the unit on a steel channel or I-beam frame
to support the unit above the roof. Spring isolators for roof
applications are recommended. For ground level applications,
install the unit on a substantial base that will not settle. Use a
one-piece concrete slab with footings extended below the frost
line. Be sure the foundation is level within 0.5” (13 mm) over
its length and width. The foundation must be strong enough
to support the unit weight - see “Dimensions and Weights -
Packaged Units” on page 24.
The addition of neoprene wa󰀪e pads (supplied by customer)
under the unit may allow water to drain from inside the frame,
which can act as a dam. Installation of optional spring or
rubber-in-shear isolators can also assist with drainage, see
page 39 for information.
Mounting
The inside of the base rail is open to allow access for securing
mounting bolts, etc. Mounting location dimensions are given in
Dimensional Drawings beginning on page 24.
All compressor bolts, rubber grommets, and fasteners should
be left in place on the base plate as shown in Figure 2. None
of these fasteners are considered to be ‘temporary shipping
bolts.’
Figure 2: Compresssor Base Plate Mounting
Service Clearance
The control panels are located on the end of the chiller and
require a minimum of four feet of clearance in front of the
panels. Compressors, lter-driers, and liquid line shuto󰀨 valves
are accessible on each side or end of the unit. Do not block
access to the sides or ends of the unit with piping or conduit.
These areas must be open for service access. Minimum
service clearance is as follows:
Sides
•  Minimum of 4 ft (1.2 m)
•  It is highly recommended to provide
a minimum of 8 ft (2.4 m) on one side to allow for coil
replacement. Coils can be removed from the top, allowing
a minimum of 4 ft (1.2 m) of side clearance; however, the
unit performance may be derated.
Control Panel End
• All Models: Minimum of 4 feet (1.2 meters)
Opposite Control Panel End
• Minimum of 8 ft (2.4 m) for coil removal.
•  Minimum of 8 ft (2.4 m). Clearance
may be reduced to 4 ft (1.2 m) if side clearance is
su󰀩cient for evaporator service and removal.
Figure 3: Service Clearance
NOTE: Number
of fans and
rigging holes may
vary from this
diagram.
The lifting
method will
remain the same.
Minimum = 4 ft (1.2 m)
Minimum = 4 ft (1.2 m)
Minimum = 4 ft
(1.2 m)
Minimum = 8 ft (2.4 m)
for 4 Fan Models
Control Panel
Minimum = 4 ft (1.2 m)
for 6-14 Fan Models
if other clearance
requirements are met
6-14 Fan Models: 8ft (2.4 m) recommended
on one side for coil removal

IOM 1206-13 • TRAILBLAZER®MODEL AGZ CHILLERS 8 www.DaikinApplied.com


Su󰀩cient clearance must be maintained between the unit
and adjacent walls or other units to allow the required unit air
ow to reach the coils. Failure to do so will result in a capacity
reduction and an increase in power consumption. No solid
obstructions are allowed above the unit at any height, see page
10 for details.
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. Additional clearances may be
required under certain circumstances.
Graphs on the following pages give the minimum clearance for
di󰀨erent types of installations and also capacity reduction and
power increase if closer spacing is used. The graphs are based
on individual cases and should not be combined with other
scenarios.
CAUTION
Unit performance may be impacted if the operational
clearance is not su󰀩cient.
Case 1: Building or Wall on One Side of Unit
NOTE: Assumes a solid height wall taller than unit. Refer to
Case 4 for partial wall openings.
For models AGZ030-101E, maintain a 4 feet minimum from a
wall of any height.
For models AGZ110-130E, maintain a 6 feet minimum from a
wall of any height.
For models AGZ140-241E, maintain a 8 feet minimum from a
wall of any height.
Figure 4: Building or Wall on One Side of Unit
Case 2: Two Units, Side-by-Side
For models 030-180, there must be a minimum of 4 feet
between two units placed side-by-side; however, performance
may be a󰀨ected at this distance. For models 191-241,
the minimum is 6 feet as closing spacing may cause air
recirculation and elevated condenser pressure. Assuming
the requirement of one side having at least 8 feet of
service clearance is met, Case 2 gures show performance
adjustments as the distance between two units increases.
Figure 5: Two Units, Side-by-Side
Figure 6: Case 2 - Full Load Capacity Reduction
Figure 7: Case 2 - Power Increase
Height
of
Wall
Distance
Between
Wall
and
Unit
D
0.0
0.5
1.0
1.5
2.0
2.5
3.0
3.5
4568



AGZ030-070E AGZ075-101E
AGZ110-130E AGZ140-180E
AGZ191-211E AGZ226-241E
0.0
0.5
1.0
1.5
2.0
2.5
3.0
3.5
4.0
4.5
4568
% Power Increase

Power Increase
AGZ030-070E AGZ075-101E
AGZ110-130E AGZ140-180E
AGZ191-211E AGZ226-241E


www.DaikinApplied.com 9 IOM 1206-13 • TRAILBLAZER®MODEL AGZ CHILLERS
Case 3: Three or More Units, Side-by-Side
For all models, there must be a minimum distance between
any units placed side-by-side; however, performance may be
a󰀨ected at this distance. Minimum distances are: models 030
to 070 - 4 feet, models 075 to 101 - 5 feet, models 110 to 241
- 6 feet. Figure 9 and Figure 10 depict Case 3 performance
adjustments as the distance between units increases.
NOTE: Data in Figure 9 and Figure 10 is for the middle unit
with a unit on each side. See Case 2 adjustment
factors for the two outside units.
Figure 8: Three or More Units, Side-by-Side
Figure 9: Case 3 - Full Load Capacity Reduction
Figure 10: Case 3 - Power Increase
Case 4: Open Screening Walls
Decorative screening walls are often used to help conceal a
unit either on grade or on a rooftop. When possible, design
these walls such that the combination of their open area
and distance from the unit (see Figure 11) do not require
performance adjustment. If the wall opening percentage is less
than recommended for the distance to the unit, it should be
considered as a solid wall. It is assumed that the wall height is
equal to or less than the unit height when mounted on its base
support. If the wall height is greater than the unit height, see
Case 5: Pit Installation for performance adjustment factors.
The distance from the sides of the unit to the side walls must
be su󰀩cient for service, such as opening control panel doors.
For uneven wall spacing, the distance from the unit to each
wall can be averaged providing no distance is less than 4 feet.
Values are based on walls on all four sides.
Figure 11: Case 4 - Allowable Wall Open Area
0.0
1.0
2.0
3.0
4.0
5.0
6.0
4568

Distance Between Units

AGZ030-035E AGZ040-070E AGZ075-101E
AGZ0110-130E AGZ140-180E AGZ191-211E
AGZ226-241E
0.0
1.0
2.0
3.0
4.0
5.0
6.0
7.0
8.0
4568
% Power Increase

Power Increase
AGZ030-035E AGZ040-070E AGZ075-101E
AGZ0110-130E AGZ140-180E AGZ191-211E
AGZ226-241E
3.0
4.0
5.0
6.0
7.0
8.0
9.0
010 20 30 40 50

% Open Wall Area

AGZ030-070E AGZ075-101E
AGZ110-130E AGZ140-180E
AGZ191-241E

IOM 1206-13 • TRAILBLAZER®MODEL AGZ CHILLERS 10 www.DaikinApplied.com

Case 5: Pit Installation
Pit installations can cause operating problems resulting from
air recirculation and restriction and require care that su󰀩cient
air clearance is provided, safety requirements are met and
service access is provided. A solid wall surrounding a unit is
substantially a pit and this data 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
recirculation problems. Have any pit installation reviewed by
the Daikin Applied sales representative prior to installation to
ensure it has su󰀩cient air-ow characteristics and approved by
the installation design engineer to avoid risk of accident.
Models AGZ030-070E:
The Case 5 gures for models AGZ030-070E show adjustment
factors for pit/wall heights of 4 feet, 5 feet, and 6 feet.
Figure 12: Case 5 - Full Load Capacity Reduction
(AGZ030E-070E)
Figure 13: Case 5 - Power Increase (AGZ030-070E)
Figure 14: Case 5 - Pit Installation
Models AGZ075-130E:
The Case 5 gures for models AGZ075-130E show adjustment
factors for pit/wall heights of 5 feet, 6 feet, and 8 feet.
Figure 15: Case 5 - Full Load Capacity Reduction
(AGZ075-130E)
Figure 16: Case 5 - Power Increase (AGZ075-130E)
0.0
1.0
2.0
3.0
4.0
5.0
6.0
0 8 10 12 13 14


-070E)
Dis tance = 4 f t Dis tance = 5 f t Dis tance = 6 f t
0.0
1.0
2.0
3.0
4.0
5.0
6.0
7.0
8.0
9.0
0 8 10 12 13 14
% Power Increase

Power Increase (AGZ030-070E)
Dis tance = 4 f t Dis tance = 5 f t Dis tance = 6 f t
0.0
1.0
2.0
3.0
4.0
5.0
6.0
0 8 10 12 13 14


-130E)
Dis tance = 5 f t Distance = 6 f t D ist ance = 8 f t
0.0
1.0
2.0
3.0
4.0
5.0
6.0
7.0
8.0
9.0
0 8 10 12 13 14
% Power Increase

Power Increase (AGZ075-130E)
Dis tance = 5 f t Dis tance = 6 f t Dis tance = 8 f t