Johnson Controls Quantech Millennium QCC3080CZE Owner's manual

QCC3080C – QCC3160C
Air-Cooled Scroll Condensing Units
Style A and B (60 Hz)
80 ton to 160 ton
281 kW to 522 kW
R-410A and R-454B
035-26917-000
Air-Cooled Scroll Condensing Units
Installation, Operation, Maintenance Supersedes QCC3-NM1 (1123) Form QCC3-NM1 (1223)
Issue Date:
December 19, 2023

Quantech
2
FORM QCC3-NM1
ISSUE DATE: 12/19/2023
This equipment is a relatively complicated apparatus.
During rigging, installation, operation, maintenance,
or service, individuals may be exposed to certain com-
ponents or conditions including, but not limited to:
heavy objects, refrigerants, materials under pressure,
rotating components, and both high and low voltage.
Each of these items has the potential, if misused or
handled improperly, to cause bodily injury or death. It
is the obligation and responsibility of rigging, instal-
lation, and operating/service personnel to identify and
recognize these inherent hazards, protect themselves,
and proceed safely in completing their tasks. Failure
to comply with any of these requirements could result
in serious damage to the equipment and the property in
Important!
Read before proceeding!
General safety guidelines
which it is situated, as well as severe personal injury or
death to themselves and people at the site.
This document is intended for use by owner-authorized
rigging, installation, and operating/service personnel. It
is expected that these individuals possess independent
training that will enable them to perform their assigned
tasks properly and safely. It is essential that, prior to
performing any task on this equipment, this individual
shall have read and understood the on-product labels,
this document and any referenced materials. This in-
dividual shall also be familiar with and comply with
all applicable industry and governmental standards and
regulations pertaining to the task in question.
Safety symbols
The following symbols are used in this document to alert the reader to specific situations:
Indicates a possible hazardous situation
which will result in death or serious injury
if proper care is not taken.
Indicates a potentially hazardous situa-
tion which will result in possible injuries
or damage to equipment if proper care is
not taken.
Identies a hazard which could lead to
damage to the machine, damage to other
equipment and/or environmental pollu-
tion if proper care is not taken or instruc-
tions and are not followed.
Highlights additional information useful
to the technician in completing the work
being performed properly.
External wiring, unless specied as an optional connection in the manufacturer’s product line, is not
to be connected inside the control cabinet. Devices such as relays, switches, transducers and controls
and any external wiring must not be installed inside the micro panel. All wiring must be in accor-
dance with Johnson Controls’ published specications and must be performed only by a qualied
electrician. Johnson Controls will NOT be responsible for damage/problems resulting from improper
connections to the controls or application of improper control signals. Failure to follow this warn-
ing will void the manufacturer’s warranty and cause serious damage to property or personal injury.

Quantech 3
FORM QCC3-NM1
ISSUE DATE: 12/19/2023
Changeability of this document
In complying with Johnson Controls’ policy for con-
tinuous product improvement, the information con-
tained in this document is subject to change without
notice. Johnson Controls makes no commitment to
update or provide current information automatically
to the manual or product owner. Updated manuals, if
applicable, can be obtained by contacting the nearest
Johnson Controls Service office or accessing the John-
son Controls Knowledge Exchange website at https://
docs.johnsoncontrols.com/chillers/.
It is the responsibility of rigging, lifting, and operating/
service personnel to verify the applicability of these
documents to the equipment. If there is any question
regarding the applicability of these documents, rig-
ging, lifting, and operating/service personnel should
verify whether the equipment has been modified and
if current literature is available from the owner of the
equipment prior to performing any work on the chiller.
AFFECTED PAGES DESCRIPTION
3 Refrigerant warning added to General safety guidelines
Revision notes
Revisions made to this document are indicated in the following table. These revisions are to technical information,
and any other changes in spelling, grammar, or formatting are not included.
Associated literature
MANUAL DESCRIPTION FORM NUMBER
Installation and Start-up Checklist QCC3-CL2
Limited Warranty Engineered Systems Equipment 50.05-NM2
Shipping Damage Claims 50.15-NM
Chiller A2L Refrigerant Application Data 160.00-AD10
Working with chiller vessels which are designed to contain contents under pressure must only be
conducted by fully qualied technicians who have been certied in accordance with EPA Section 608
of the Clean Air Act requirements for the US or equivalently the Federal Halocarbon Regulations
and the Refrigerant Code of Practice for Canada. This equipment is only intended for installation
in locations that are not accessible to the general public. Further, this equipment is not intended for
use by persons (including children) with reduced physical, sensory or mental capabilities, or lack
of experience and knowledge. Refrigerant R-454B is classied as an A2L refrigerant and must be
handled in accordance with all governing regulations. Failure to meet this requirement can result
in damage to equipment, release of refrigerant into the environment, contamination of the operating
space for the equipment and pose a risk of personal injury or death. It is the responsibility of any
service technician or operator to adhere to these requirements. See 160.00-AD10 for greater details
regarding the application and use of A2L refrigerants.

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FORM QCC3-NM1
ISSUE DATE: 12/19/2023
Nomenclature
See Nomenclature on page 23 for addi-
tional information on PIN.
Conditioned-based maintenance
Traditional chiller maintenance is based upon assumed
and generalized conditions. In lieu of the traditional
maintenance program, a Johnson Controls Quantech
Conditioned Based Maintenance (CBM) program can
be substituted. This CBM service plan is built around
the specific needs for the chiller, operating conditions,
and annualized impact realized by the chiller. Your lo-
cal Johnson Controls Branch can propose a customized
Planned Service Agreement that leverages real time
and historical data, delivering performance reporting,
corrective actions required and data enabled guidance
for optimal operation and lifecycle assurance. The pro-
gram will include fault detection diagnostics, operation
code statistics, performance based algorithms and ad-
vance rules based rationale delivered by the Johnson
Controls Connected Equipment Portal.
QC C3145C
E = R-410A
J = R-454B

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FORM QCC3-NM1
ISSUE DATE: 12/19/2023
Table of contents
Section 1: General equipment information and safety ...................................................................................... 11
Introduction..................................................................................................................................................... 11
Compressors .................................................................................................................................................. 11
Condenser...................................................................................................................................................... 11
Refrigerant circuit ........................................................................................................................................... 11
Warranty ......................................................................................................................................................... 11
Safety and quality...........................................................................................................................................12
About this manual...........................................................................................................................................12
Misuse of equipment ......................................................................................................................................13
Section 2: Product description ............................................................................................................................15
Introduction.....................................................................................................................................................15
General system description............................................................................................................................15
Refrigerant circuit ...........................................................................................................................................16
Microcomputer control center.........................................................................................................................16
High ambient kit..............................................................................................................................................17
Communications.............................................................................................................................................17
Power panel ...................................................................................................................................................17
Accessories and options ................................................................................................................................17
Unit components ...........................................................................................................................................20
Nomenclature (Pin) ........................................................................................................................................23
Refrigerant flow diagram ................................................................................................................................27
Process and instrumentation diagram............................................................................................................28
Section 3: Handling and storage..........................................................................................................................29
Delivery and storage ......................................................................................................................................29
Inspection .......................................................................................................................................................29
Unit rigging .....................................................................................................................................................29
Section 4: Installation ...........................................................................................................................................31
Installation checklist .......................................................................................................................................31
Handling .........................................................................................................................................................31
Location and clearances ................................................................................................................................31
Spring isolators: optional ................................................................................................................................32
Compressor mounting ....................................................................................................................................32
Pipework arrangement ...................................................................................................................................32
Ductwork connection .....................................................................................................................................32
Wiring .............................................................................................................................................................32
Compressor heaters.......................................................................................................................................33
Relief valves ...................................................................................................................................................33
High pressure cutout ......................................................................................................................................33
Electrical wiring ..............................................................................................................................................33
Compressor heaters.......................................................................................................................................35
Refrigerant piping ...........................................................................................................................................35
Oil traps ..........................................................................................................................................................38
Refrigerant charge..........................................................................................................................................38
Filter driers, sight glasses, and TXV’S............................................................................................................38
Refrigerant piping notes .................................................................................................................................39
Control wiring .................................................................................................................................................41