This equipment is a relatively complicated apparatus.
During rigging, installation, operation, maintenance,
or service, individuals may be exposed to certain components 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, installation, 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
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 individual 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.
Identies a hazard which could lead to
damage to the machine, damage to other
equipment and/or environmental pollution if proper care is not taken or instructions and are not followed.
Indicates a potentially hazardous situation which will result in possible injuries
or damage to equipment if proper care is
not taken.
External wiring, unless specied 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 specications and must be performed only by a qualied
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.
2
Highlights additional information useful
to the technician in completing the work
being performed properly.
JOHNSON CONTROLS
Page 3
FORM 201.28-NM1.1
ISSUE DATE: 1/31/2018
CHANGEABILITY OF THIS DOCUMENT
In complying with Johnson Controls’ policy for continuous product improvement, the information contained 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 Johnson Controls QuickLIT website at
http://cgproducts.johnsoncontrols.com.
The Control/VSD Cabinet contains lethal
high AC and DC voltages. Before performing service inside the cabinet, remove
the AC supply feeding the chiller and
verify using a non-contact voltage sensor.
The DC voltage on the VSD DC Bus will
take 5 minutes to bleed off, after AC
power is removed. Always check the DC
Bus Voltage with a Voltmeter to assure
the capacitor charge has bled off before
working on the system.
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,
rigging, 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.
CHANGE BARS
Revisions made to this document are indicated with a
line along the left or right hand column in the area the
revision was made. These revisions are to technical information and any other changes in spelling, grammar
or formatting are not included.
NEVER allow the Control Panel VSD
Cabinet doors to remain open if there is
a potential for rain to enter the panel.
Keep doors closed and assure all latches
are engaged on each door unless the unit
is being serviced.
NEVER short out the DC Bus to dis-
charge the lter capacitors.
NEVER place loose tools, debris, or any
objects inside the Control Panel/VSD
Cabinet.
ALWAYS lockout the disconnect supplying AC to the chiller.
The 1L Line Inductor will reach operating
temperatures of over 150°C (300°F.) DO
NOT open panel doors during operation.
Assure the inductor is cool whenever
working near the inductor with power
OFF.
ASSOCIATED LITERATURE
MANUAL DESCRIPTIONFORM NUMBER
Equipment Pre-Startup and Startup Checklist201.28-CL2
YVAA Style A Frame Size 015 - 027, 2 Compressor 60 Hz (150-350 Tons)
YVAA Style A Frame Size 054 - 098, 2 Compressor 50 Hz (525-950 KW) Manufactured before April 2012
201.28-RP1
YVAA Style A Frame Size 015 - 052, 2 Compressor 50 & 60 Hz (150-500 Tons)
(Manufactured after April 2012 to before September 2014)
YVAA Style B Frame Size 015 - 052, 2 Compressor 50 & 60 Hz (150-500 Tons)
(Manufactured after September 2014)
JOHNSON CONTROLS
201.28-RP2
201.28-RP3
3
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4
JOHNSON CONTROLS
Page 5
FORM 201.28-NM1.1
ISSUE DATE: 1/31/2018
TABLE OF CONTENTS
SECTION 1 - GENERAL CHILLER INFORMATION AND SAFETY ......................................................................13
Quality Assurance and Safety ........................................................................................................................14
Responsibility for Safety ................................................................................................................................. 14
About This Manual..........................................................................................................................................14
Misuse of Equipment ...................................................................................................................................... 14
Suitability for Application ....................................................................................................................... 14
Structural Support .................................................................................................................................15
Rotating Parts ........................................................................................................................................15
General System Description ........................................................................................................................... 17
Semi-Hermetic YORK Twin-Screw Compressors ...........................................................................................19
Building Automation System Capabilities ....................................................................................................... 20
Microcomputer Control Center .......................................................................................................................20
Display Data .......................................................................................................................................... 20
Accessories and Options ................................................................................................................................ 21
Fan Options .................................................................................................................................................... 21
Delivery and Storage ...................................................................................................................................... 25
Moving the Chiller ........................................................................................................................................... 26
Unit Removal From Shipping Container ......................................................................................................... 26
Lifting Using Lugs ........................................................................................................................................... 26
Lifting Using Shackles .................................................................................................................................... 26
General Requirements ..........................................................................................................................39
Evaporator Pressure Drop .............................................................................................................................. 40
Water Treatment ............................................................................................................................................. 41
Minimum Water Volume ................................................................................................................................. 42
Leaving Water Temperature Out of Range ..................................................................................................... 42
Power Wiring .................................................................................................................................................. 46
Power Supply Wiring ...................................................................................................................................... 46
115VAC Control Supply Transformer ..............................................................................................................46
Control Wiring ................................................................................................................................................. 46
Run Contact ..........................................................................................................................................47
System Inputs ................................................................................................................................................. 47
Power Supply Wiring ...................................................................................................................................... 48
Single Point Wiring ................................................................................................................................ 48
Voltage Utilization Range ......................................................................................................................48
Dual Point Wiring ...................................................................................................................................49
Customer Control Wiring ................................................................................................................................ 50
SECTION 5 - TECHNICAL DATA ...........................................................................................................................63
Control Panel .........................................................................................................................................98
Power Connections ...............................................................................................................................98
Water System ........................................................................................................................................98
Date and Time ....................................................................................................................................... 98
Setpoint and Remote Offset .................................................................................................................. 99
First Time Start Up .........................................................................................................................................99
Unit Switch ............................................................................................................................................99
Condenser and Fan Rotation ................................................................................................................99
System Charge ......................................................................................................................................99
General Operation ....................................................................................................................................... 100
Operation in Sub-freezing Conditions .................................................................................................100
Unit Maintenance and Shutdown in Sub-freezing Conditions ............................................................100
Unit Switch ..........................................................................................................................................101
Start Sequence and Loading ............................................................................................................... 103
Unit Warning .................................................................................................................................................103
Unit Warning Operation .......................................................................................................................103
Program Update ........................................................................................................................................... 118
Data Logging ................................................................................................................................................ 118
Invalid Number of Compressors Warning............................................................................................ 119
Invalid Serial Number Warning ............................................................................................................ 119
Unit Safeties ................................................................................................................................................. 120
Unit Safety Operation .......................................................................................................................... 120
High Ambient Temp Fault .................................................................................................................... 120
System Safeties (Faults) ..............................................................................................................................121
System Safety (Fault) Operation ......................................................................................................... 121
High Discharge Pressure Cutout (Software) Fault ..............................................................................121
High Discharge Pressure Cutout (HPCO) (Hardware) Fault .............................................................. 121
General Requirements .................................................................................................................................161
Unit Status ........................................................................................................................................... 161
FIGURE 2 - Chiller Control System ......................................................................................................................... 18
FIGURE 3 - View of York Control Center User Interface ......................................................................................... 20
FIGURE 14 - Single Point Power Wiring .................................................................................................................48
FIGURE 15 - Dual Point Power Wiring .................................................................................................................... 49
FIGURE 16 - Customer Control Connections .........................................................................................................50
TABLE 28 - R-513A Refrigerant Pressure to Saturated Temperature ...................................................................168
TABLE 29 - R-513A Refrigerant Temperature to Pressure ...................................................................................169
TABLE 30 - Temperature Input Voltage Sensor (Measured Signal To Shield At The Sensor) ..............................170
TABLE 31 - Outside Air Temperature Sensor Input Voltage (Measured Signal To Shield At The Sensor) ............171
TABLE 32 - Pressure Transducer Output Voltage (Measured Signal To Return At The Transducer) ...................172
TABLE 33 - Motor Temperature Sensor Resistance (Check At The Motor) .......................................................... 173
TABLE 34 - SI Metric Conversion .........................................................................................................................176
JOHNSON CONTROLS
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FORM 201.28-NM1.1
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JOHNSON CONTROLS
Page 13
FORM 201.28-NM1.1
ISSUE DATE: 1/31/2018
SECTION 1 - GENERAL CHILLER INFORMATION AND SAFETY
INTRODUCTION
YORK YVAA chillers are manufactured to the highest design and construction standards to ensure high
performance, reliability and adaptability to all types of
air conditioning installations.
The unit is intended for cooling water or glycol solutions and is not suitable for purposes other than those
specified in this manual.
Rigging and lifting should only be done by a professional rigger in accordance with a written rigging and
lifting plan. The most appropriate rigging and lifting
method will depend on job specific factors, such as the
rigging equipment available and site needs. Therefore,
a professional rigger must determine the rigging and
lifting method to be used, and it is beyond the scope of
this manual to specify rigging and lifting details.
The rigger should locate the center of
gravity through trial lifts to account
for possible variations in unit congurations. Contact your nearest Johnson
Controls sales ofce for weight data. See
SECTION 3 - RIGGING, HANDLING
AND STORAGE for more details.
1
WARRANTY
Johnson Controls warrants YVAA chillers in accordance with the "Limited Warranty Engineered Systems
Equipment" procedure. Refer to Form 50.05-NM2.
Johnson Controls warrants all equipment and
materials against defects in workmanship and materials for a period of eighteen months from date of
shipment or 12 months from date of startup, whichever comes first, unless labor or extended warranty has
been purchased as part of the contract. The warranty is
limited to parts only replacement and shipping of any
faulty part, or sub-assembly, which has failed due to
poor quality or manufacturing errors. All claims must
be supported by evidence that the failure has occurred
within the warranty period, and that the unit has been
operated within the designed parameters specified.
All warranty claims must specify the unit model,
serial number, order number and run hours/starts. Model and serial number information is printed on the unit
identification plate.
The unit warranty will be void if any modification to
the unit is carried out without prior written approval
from Johnson Controls. For warranty purposes, the following conditions must be satisfied:
This manual contains all the information required for
correct installation and commissioning of the unit, together with operating and maintenance instructions.
The manual should be read thoroughly before attempting to operate or service the unit.
All procedures detailed in the manual, including installation, commissioning and maintenance tasks must
only be performed by suitably trained and qualified
personnel.
The manufacturer will not be liable for any injury or
damage caused by incorrect installation, commissioning, operation or maintenance resulting from a failure
to follow the procedures and instructions detailed in
the manual.
• The initial start of the unit must be carried out by trained personnel from an authorized Johnson Controls Service Center. See
"SECTION 6 - COMMISSIONING" on page 97
for more information.
• Only genuine YORK approved spare parts, oils,
coolants, and refrigerants must be used.
• All the scheduled maintenance operations detailed
in this manual must be performed at the specied
times by suitably trained and qualied personnel.
See "SECTION 9 - MAINTENANCE" for more in-
formation.
• Failure to satisfy any of these conditions will
automatically void the warranty. Refer to
Form 50.05-NM2 for complete details.
JOHNSON CONTROLS
13
Page 14
SECTION 1 - GENERAL CHILLER INFORMATION AND SAFETY
FORM 201.28-NM1.1
ISSUE DATE: 1/31/2018
QUALITY ASSURANCE AND SAFETY
YVAA chillers are designed within EN ISO 9001 and
built within an EN ISO 9002 accredited manufacturing
organization.
Units conform with the following European Directives:
• Machinery Directive (2006/42/EC)
• EMC Directive (2004/108/EC)
• Pressure Equipment Directive (97/23/EC)
• Low Voltage Directive (2006/95/EC)
• Safety Code for Mechanical Refrigeration
(EN378-2(2008))
CE/PED marked units conform to the following
standards:
• Machinery Directive (2006/42/EC).
• EMC Directive (2004/108/EC).
• Pressure Equipment Directive (97/23/EC).
• Low Voltage Directive (2006/95/EC).
• Safety Code for Mechanical Refrigeration
(EN378-2(2008)).
FLUORINATED GREENHOUSE GASES
• This equipment contains uorinated greenhouse
gases covered by the Kyoto Protocol.
• The global warming potential of the refrigerant
used in this unit is 1300 for R-134a, and 630 for
R-513A.
• The refrigerant quantity is as stated in
Table 5 on Page 64 of this document.
• The uorinated greenhouse gases in this equipment may not be vented to the atmosphere.
• This equipment should only be serviced by
qualied technicians.
RESPONSIBILITY FOR SAFETY
Every care has been taken in the design and manufacture of the unit to ensure compliance with the safety
requirements listed above. However, the individual
rigging, lifting, maintaining, operating or working on
any machinery is primarily responsible for:
• Personal safety, safety of other personnel, and the
machinery.
• Correct utilization of the machinery in accordance
with the procedures detailed in the manual.
ETL/ASME marked units conform to the following
standards:
• ANSI/ASHRAE 15 – Safety Code for
Mechanical Refrigeration.
• ANSI/ASHRAE 34 – Number Designation and
Safety Classication of Refrigerants.
• ANSI/NFPA 70 – National Electrical Code
(N.E.C.).
GB marked units conform to the following standards:
• GB5226.1 Safety of machinery- Electrical equipment of machines – Part 1: General requirements.
• GB25131 Safety requirements for water chiller
(heat pump) using the vapor compression cycle.
ABOUT THIS MANUAL
The contents of this manual include suggested best
working practices and procedures. These are issued for
guidance only, and they do not take precedence over
the above stated individual responsibility and/or local
safety regulations.
This manual and any other document supplied with
the unit are the property of Johnson Controls which reserves all rights. They may not be reproduced, in whole
or in part, without prior written authorization from an
authorized Johnson Controls representative.
MISUSE OF EQUIPMENT
Suitability for Application
The unit is intended for cooling water or glycol solutions and is not suitable for purposes other than those
specified in these instructions. Any use of the equipment other than its intended use, or operation of the
equipment contrary to the relevant procedures may result in injury to the operator, or damage to the equipment.
14
The unit must not be operated outside the design parameters specified in this manual.
JOHNSON CONTROLS
Page 15
FORM 201.28-NM1.1
ISSUE DATE: 1/31/2018
SECTION 1 - GENERAL CHILLER INFORMATION AND SAFETY
Structural Support
Structural support of the unit must be provided as indicated in these instructions. Failure to provide proper
support may result in injury to the operator, or damage
to the equipment and/or building.
Mechanical Strength
The unit is not designed to withstand loads or stresses
from adjacent equipment, pipework or structures. Additional components must not be mounted on the unit.
Any such extraneous loads may cause structural failure
and may result in injury to the operator, or damage to
the equipment.
General Access
There are a number of areas and features, which may
be a hazard and potentially cause injury when working
on the unit unless suitable safety precautions are taken.
It is important to ensure access to the unit is restricted
to suitably qualified persons who are familiar with the
potential hazards and precautions necessary for safe
operation and maintenance of equipment containing
high temperatures, pressures and voltages.
This equipment equipped with VSD, may generate
conducted and radiated disturbances, which may interfere with or damage susceptible connected apparatus.
Generally accepted engineering standards and practices should be followed to ensure trouble-free and EMC
compliant electrical installation. Installations must
be supervised or completed by a competent person in
accordance with EN 13313.
Special considerations depending on the application:
• Industry standard grounding or “earthing”
practices for the equipment and installation.
• Use of shielded or special cables (power and/or
control).
• Use of metallic conduit and/or cable trays for
power and control cables connected to equipment.
• Cable segregation (in order to avoid the risk of
crosstalk or cross interference to signal cables,
the power cables shall be segregated from signal
cables).
• Dedicated isolation transformer.
1
Pressure Systems
The unit contains refrigerant vapor and liquid under pressure, release of which can be a danger and cause injury.
The user should ensure that care is taken during installation, operation and maintenance to avoid damage to the
pressure system. No attempt should be made to gain access to the component parts of the pressure system other
than by suitably trained and qualified personnel.
Electrical
The unit must be grounded. No installation or maintenance work should be attempted on the electrical
equipment without first switching power OFF, isolating and locking-off the power supply. Servicing and
maintenance on live equipment must not be attempted.
No attempt should be made to gain access to the control panel or electrical enclosures during normal operation of the unit.
Caution:
This equipment (Class A, Group 1) is designed and
manufactured for use in an industrial environment, in
accordance with EN 61000-6-2:2005 and EN 61000-6
4:2007 (with EN 55011:2007 limits). It is not intended
to be used on a low-voltage public network which supplies domestic premises. Radio frequency interference
may occur if it is used on a low voltage public network.
• Use of additional EMC lters.
It is the responsibility of a designated System Integrator to take proper steps assuring the Electromagnetic
Compatibility of both equipment and installation as a
system.
Rotating Parts
Fan guards must be fitted at all times and not removed
unless the power supply has been isolated. If ductwork
is to be fitted, requiring the wire fan guards to be removed, alternative safety measures must be taken to
protect against the risk of injury from rotating fans.
Sharp Edges
The fins on the air-cooled condenser coils have sharp
metal edges. Reasonable care should be taken when
working in contact with the coils to avoid the risk of
minor abrasions and lacerations. The use of gloves is
recommended.
Frame rails, brakes, and other components may also
have sharp edges. Reasonable care should be taken
when working in contact with any components to avoid
risk of minor abrasions and lacerations.
JOHNSON CONTROLS
15
Page 16
SECTION 1 - GENERAL CHILLER INFORMATION AND SAFETY
FORM 201.28-NM1.1
ISSUE DATE: 1/31/2018
Refrigerants and Oils
Refrigerants and oils used in the unit are generally nontoxic, non-flammable and non-corrosive, and pose no
special safety hazards. Use of gloves and safety glasses is, however, recommended when working on the
unit. The buildup of refrigerant vapor, from a leak for
example, does pose a risk of asphyxiation in confined
or enclosed spaces and attention should be given to
good ventilation.
Use only the refrigerant specifically designated for the
unit. Any other type of refrigerant may cause damage
to the equipment and will void the warranty.
High Temperature and Pressure Cleaning
High temperature and pressure cleaning methods
(e.g. steam cleaning) should not be used on any part
of the pressure system as this may cause operation of
the pressure relief device(s). Detergents and solvents,
which may cause corrosion, should also be avoided.
Emergency Shutdown
In case of emergency , the control panel is fitted with
an incoming supply circuit breaker with a red and yellow handle which can be used as the emergency stop
device. When operated it removes the electrical supply
to the inverter, fans, and control circuit thus shutting
down the unit.
Safety Labels
White symbol on blue background.
For safe operation, read the Instructions
first.
Black symbol on yellow background.
Warning: This machine may start automatically without prior warning.
Black symbol on yellow background.
Warning: Hot surface.
Black symbol on yellow background.
Warning: Safety relief valve may discharge gas or liquid without prior warning.
Black symbol on yellow background.
Warning: Isolate all electrical sources of
supply before opening or removing the
cover, as lethal voltages may exist.
Black symbol on yellow background.
General attention symbol.
Black symbol on yellow background.
Warning: On isolating the supply it may
take up to 300 seconds for the capacitor
voltage to fall below 50 volts.
16
JOHNSON CONTROLS
Page 17
FORM 201.28-NM1.1
ISSUE DATE: 1/31/2018
SECTION 2 - PRODUCT DESCRIPTION
YORK YVAA chillers are designed for water or glycol
cooling. All units are designed to be located outside on
the roof of a building or at ground level.
The units are completely assembled with all interconnecting refrigerant piping and internal wiring, ready
for field installation.
Prior to delivery, the unit is pressure tested, evacuated,
and fully charged with refrigerant and oil in each of the
two independent refrigerant circuits. After assembly,
an operational test is performed with water flowing
through the evaporator to ensure that each refrigerant
circuit operates correctly.
The unit structure is manufactured from heavy gauge,
galvanized steel. Many external structural parts are
coated with baked-on enamel powder “Champagne”
paint color ((RAL 7006), (Munsel No. 9.8YR4.36/1.2)).
All exposed power wiring is routed through liwquidtight, non-metallic conduit.
GENERAL SYSTEM DESCRIPTION
The YVAA Chiller combines the best of modern screw
compressor design with the latest technology in variable speed drives. The result is superior control and
efficiency in real world conditions. The VSD enables
slowing the speed of the compressor to match the load
on the system resulting in precise chilled liquid control, minimized sound, maximum energy efficiency,
and reduced cost of ownership. The VSD also provides
soft starts with no electrical inrush. The lack of heat
build-up on start also enables required off time between starts to be reduced to a period of two minutes.
The YVAA Air-Cooled Screw Chiller utilizes many
components, which are the same or nearly the same as
a standard screw chiller of a similar size. This includes
modular frame rails, condenser, fans, compressors and
evaporator.
The chiller consists of two screw compressors in a
corresponding number of separate refrigerant circuits,
a hybrid falling film evaporator, an air-cooled condenser, receiver/flash tanks, feed valves, oil separators, and
compressor mufflers.
INPUTS
Pressure Transducers
Temperature Sensors
Switches
Liquid Flow
High Pressure
Start/Stop
Level
Customer Supplied
Contacts
COMMUNICATIONS
Building Automation
Printer Modem
3 Phase Power Line
CONTROL
PANEL
Chiller Control
Board)
Microprocessor
User Interface
Display and
Keypad
DISPLAY
KEYPAD
OUTPUTS
Relay Output Board)
Solenoids
Contactors
Alarm
Pump
Compressor Heater
Run Status
Evaporator Heater
VSD
VSD Logic Board
SCR Trigger Board
Power Components
PWM (Speed Control)
MOTOR
LD15028
AC/DC Rectier
Rectier Controller
SCR Trigger Board
Rectier
VSD Logic Board
Signal From Main Control Panel
FIGURE 2 - CHILLER CONTROL SYSTEM
Oil separators utilize no moving parts.Oil cooling is
accomplished by refrigerant leaving the eductor flashing in the suction line which cools the oil, motor and
compressor.
An integral liquid cooled, transistorized, PWM,
Variable Speed Drive (VSD) is controlled by the
chiller microprocessor control panel to start/stop, select
compressors to run, and select compressor speed.
Displacement Power Factor is 0. 95 at part or full load.
Compressor 1
Power Driver
(IGBT)
Compressor 2
IGBT Gate Driver
Inverter
PWM Signal
LD15158
The chiller microprocessor communicates with the
VSD Logic Board via a 3-wire RS-485 opto coupled
data link. The VSD Logic Board runs the number of
compressors required to meet the load and the compressors to the speed requested by the chiller microprocessor.
The basic system control and VSD system
architecture is shown in Figure 2 on Page 18.
18
JOHNSON CONTROLS
Page 19
FORM 201.28-NM1.1
ISSUE DATE: 1/31/2018
SECTION 2 - PRODUCT DESCRIPTION
SEMI-HERMETIC YORK TWIN-SCREW
COMPRESSORS
Compressors are direct drive, semi-hermetic amd
rotary twin-screw type, including: muffler, temperature
actuated ‘off-cycle’ heater, IP55 terminal board and
precision machined cast iron housing.
Reliable suction gas cooled, high efficiency, accessible hermetic compressor motor, full suction gas flow
through mesh screen filter, with inherent internal thermal overload protection and external current overload
on all three phases.
Continuous function, microprocessor controlled,
Variable Speed Drive (VSD) shall provide valve-less,
smooth capacity control from 100% down to 10% of
chiller capacity.
In addition, elimination of the slide valve and associated unloading components has resulted in a 50% reduction in compressor moving parts.
EVAPORATOR
The evaporator is a shell and tube, hybrid falling film
type heat exchanger. It contains a balance of flooded
and falling film technology to optimize efficiency, minimize refrigerant charge, and maintain reliable control.
A specifically designed distribution system provides
uniform refrigerant flow for optimum performance.
Fan motors are Totally Enclosed Air-Over (TEAO),
squirrel-cage type and current protected. The direct
drive motors feature double-sealed and permanently
lubricated ball bearings, cutting down on maintenance
cost over the life of the unit.
REFRIGERANT CIRCUIT
An independent refrigerant circuit is provided per
compressor. Each circuit uses copper refrigerant pipe
formed on computer controlled bending machines to
reduce the number of brazed joints resulting in a reliable and leak resistant system.
• Discharge lines are provided with a manual compressor shutoff service valve See "Accessories and Options" on page 21 for suction line service valve).
• The external oil separators, with no moving parts
and designed for minimum oil carry-over, are
mounted in the discharge line of the compressor.
• Liquid line components include: high absorp-
tion removable core lter-drier, sight glasses with
moisture indicators, manual shut-off valve with
charging port, orice and electronic expansion
valve.
• An economizer (ash) tank is located in each re-
frigerant circuit to increase the system efciency.
2
CONDENSER
The YVAA introduces micro-channel coil to the York
screw compressor chiller line. The micro-channel maximizes condenser heat transfer, resulting in a smaller
footprint, and reduces refrigerant charge by as much
as 50%.
Each condenser coil is a single piece all aluminum
construction including headers, tubes and fins to avoid
galvanic corrosion due to dissimilar metals. Coils and
headers are brazed as one piece. Integral sub-cooling
is included. The design working pressure is 375 PSIG
(25.9 barg).
Multiple, standard low sound, high efficiency, TEAO
motor driven fans move air through the coils. They are
dynamically and statically balanced, direct drive with
corrosion-resistant glass fiber reinforced composite
blades molded into low-noise, full airfoil cross sections, providing vertical air discharge from extended
orifices for efficiency and low sound.
ELECTRICAL
Johnson Controls has over 25 years of experience designing variable -speed drives specifically for chiller
applications. The result is an extremely reliable aircooled chiller system that offers industry leading efficiency at real world operating conditions, valve-less
compressor loading/unloading, excellent capacity control, high power factor and soft start..
Incoming single point power is standard utilizing a
lockable circuit breaker, 115VAC control transformer,
VSD, fan contactors, ON/OFF unit switch, microcomputer keypad and display, Chiller Control and VSD
Logic boards, and relay boards.
Standard design includes IP55 rating, powder painted
steel cabinet with hinged, latched, and gasket sealed
outer doors equipped with wind struts for safer servicing. The panel includes a control display access door so
that display and control features can be accessed without opening main cabinet doors. All exposed power
wiring is routed through liquid-tight, UV-stabilized,
non-metallic conduit.
JOHNSON CONTROLS
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Page 20
SECTION 2 - PRODUCT DESCRIPTION
FORM 201.28-NM1.1
ISSUE DATE: 1/31/2018
BUILDING AUTOMATION SYSTEM
CAPABILITIES
The E-Link Gateway provides an economical and versatile connection between York equipment and open/
standard protocols. It efficiently manages the communication protocols currently used by York equipment,
exposing the data in a consistent, organized, and defined fashion. The E-Link Gateway is available as a
field-installed option on YVAA. A simple switch selection allows configuration of the required equipment
profile and output protocol, which reduces equipment
connectivity startup time.
MICROCOMPUTER CONTROL CENTER
The microcomputer control center (see Figure 3 on
Page 20) provides automatic control of chiller
operation including compressor start/ stop and load/
unload anti-recycle timers, condenser fans, evaporator pump, evaporator heater, unit alarm contacts and
run signal contacts. The microcomputer control center
comes online as soon as the main power switch on the
unit is switched on; immediately, the microcomputer
control center will begin to check all variables with a
frequency ranging from 30 seconds to almost continuous monitoring.
The microprocessor controls the unit’s capacity by
matching the actual leaving chilled water temperature (LCWT) to the user-defined setpoint. Factors that
may cause the system’s actual LCWT to fluctuate are
changes in ambient temperature, loop flow rate, load,
and loop volume. The control system reacts to such
changes by adjusting the number of compressors that
are on and the loading of each compressor in order to
keep the LCWT at the setpoint.
• Compressor Number of Starts
• Oil Pressure and Temperature (per Compressor)
• Evaporator Pump Status
• Evaporator Heater Status
• History Data for Last Twenty Normal Shutdowns
• History Data for Last Ten Shutdown Faults
Programmable Setpoints
• Chiller On/Off
• Chilled Liquid (Water or Glycol)
• Local or Remote Control
• Units of Measure (Imperial or SI)
• System Lead / Lag
• Remote Temperature Reset
• Remote Current Limit
• Leaving Chilled Liquid Temperature Setpoint and
Range
Johnson Controls’ systems or another vendor’s systems
can incorporate these setpoints and data outputs to give
the customer a complete understanding of how the system is running through a Building Automation System.
The control system logic monitors the rate at which the
LCWT is approaching the setpoint to ramp up or down
compressor capacity as required.Variable frequency
drive allows the compressor capacity to match the load.
Display Data
• Leaving Chilled Liquid Temperature
• Returning Liquid Temperature
• Ambient Temperature
• Lead System
• Compressor Capacity (% of Full Load Amps)
• VSD Output Frequency / Compressor Speed
• Compressor Run Hours
20
FIGURE 3 - VIEW OF YORK CONTROL CENTER
USER INTERFACE
JOHNSON CONTROLS
Page 21
FORM 201.28-NM1.1
ISSUE DATE: 1/31/2018
SECTION 2 - PRODUCT DESCRIPTION
Extreme Conditions – During extreme or unusual
conditions (that is, blocked condenser coils, ambient
above scheduled maximum, and so on) the chiller control system will avoid shutdown by varying capacity.
By monitoring motor current and suction and discharge
pressures, the chiller can maintain maximum available
cooling output without shutting down.
Unit Safeties are provided for the chiller to perform
auto-reset shut down for the following conditions:
• Ambient temperature above or below allowable
range
• Out of range leaving chilled liquid temperature
• Under voltage
• Flow switch operation
ACCESSORIES AND OPTIONS
All options factory mounted unless otherwise noted.
Sound Attenuation
Low Noise Kits – The standard chiller configuration is
equipped with low sound fans and acoustic treatments
on the refrig erant lines and compressors. There are
several sound attenuation options available to further
reduce sound at its source thereby meeting local sound
level regulations.
SilentNight™ – Due to time of day based sound regulations in some locations it may be desirable to force
the chiller to a lower sound level on demand. The
SilentNight control option provides a control input
to limit sound output of the chiller based on time of
day. This feature is programmable at the chiller panel
or can be controlled remotely via a signal (4-20mA or
0-10VDC) from a BAS system.
FAN OPTIONS
High Airflow Fans – The chiller is equipped with condenser fans with airfoil type blades and high power motors providing extra airflow across coils. In some chiller
configurations, this option can provide an increase in
chiller capacity at high ambient. The high airflow fans are
also available with variable speed control. Please contact
your local JCI representative for more information.
CONDENSER COILS
Fin and tub condenser coils of seamless, internally-enhanced, high-condensing-coefficient, corrosion resistant copper tubes are arranged in staggered rows. The
tubes are mechanically expanded into aluminum fins.
Integral subcooling is included. The design working
pressure of the coils is 350 PSIG (24 barg).
Condenser Coil Protection
The aluminum alloys used in the YVAA micro-channel condenser have been carefully selected and tested
for high corrosion resistance. However, all metals can
corrode in harsh conditions. Consider protecting coils
from corrosive environments such as coastal, marine,
urban and industrial.
Post-Coated Epoxy Dipped Condenser – Microchannel condenser coils applied with electro-deposited
and baked flexible epoxy coating that is finished with a
polyurethane UV resistant top-coat suitable for highly
corrosive applications.
Protective Chiller Panels
Wire Panels – UV stabilized black polyvinyl chloride
coated, heavy gauge, welded wire mesh guards mounted
on the exterior of the full unit. Protects condenser coil
faces and prevents unauthorized access to refrigerant
components (compressors, pipes, evaporator, and so on),
yet provides free air flow. This can cut installation cost
by eliminating the need for separate, expensive fencing.
2
Ultra Quiet Fans – The chiller is equipped with specially designed fans and motors to provide lower sound
levels yet retain appropriate airflow. The result is reduced fan generated sound with minimal effect on the
chiller capacity or efficiency.
High Static Fans – The chiller is equipped with condenser fans with higher power motors suitable for
high external static pressure, up to 100 Pa (0.4 water),
across condenser coils. This option should be selected
if additional airflow resistance may be present due to
flow restrictions such as field installed ducts, filters,
sound enclosures and so on. Please contact your local
JCI representative for more information.
JOHNSON CONTROLS
Louvered Panels – Louvered panels, painted the same
color as the unit, enclose the unit to visually screen
and protect the coils as well as preventing unauthorized access to internal components. Also available as a
condenser-only option.
Louvered/Wire Panels Combination – Louvered panels, painted the same color as the unit, are mounted on
external condenser coil faces. Heavy gauge, welded
wire-mesh panels, coated to resist corrosion, are mounted
around base of machine to restrict unauthorized access.
21
Page 22
SECTION 2 - PRODUCT DESCRIPTION
FORM 201.28-NM1.1
ISSUE DATE: 1/31/2018
End Hail Guard – Louvered panels, painted with the
same color as the unit, are installed on the rear of the
unit (opposite end of the control panel) to protect the
exposed condenser from flying debris or hail.
V-Guard Panels – Solid panels, painted the same color as the unit, are installed along the sides of the units
to cover exposed piping within the condenser section
without impacting airflow. These guard panels can be
combined with End Hail Guard option for additional
protection from debris.
Evaporator Options
38 mm insulation – Double thickness insulation
provided.
Flange Kit – Provides contractor with the couplings
best suited to tie into the chilled water piping. All
flanges are PN10.
Connection Location – The standard unit configuration is available with fluid inlet connections at rear
(opposite control panel end) of unit. Option available
for front fluid inlet on select configurations.
Water Box Heater – The standard unit comes with
evaporator shell heaters and water pump control software. Optional water box heaters are required for storage below 0°F (-17°C). See the Refrigerant Valve - Off option on page 100 for more information on freeze
protection.
Controls Options
High Ambient Operation – This provides special
control logic coupled with high airflow fans to permit
high ambient up to 52°C (125°F) operation. Fans are
airfoil type blades with high power motors. This option
may also allow for increased machine capacity, allowing the selection of a smaller chassis to meet specific
capacity requirements.
Building Automation System Interface (Temperature) – Factory installed option to accept a 4 to 20mA
or a 0 to 10VDC input to allow remote reset of the
Leaving Chilled Liquid Temperature Setpoint. The
setpoint can be positively offset upwards up to 22.2°C
(40°F). This option is useful for ice storage or process
applications or for periods where higher chilled liquid
temperatures are adequate for low loads. Available
alone or in combination with BAS Load Limit.
Building Automation System Interface (Load
Limit) – Factory installed option to accept a 4 to 20mA
or a 0 to 10VDC input to allow remote reset of the Load
Limit Setpoint. The setpoint can limit system demand
from 30-100%. Available alone or in combination with
BAS Temperature Reset.
E-Link – The optional E-Link gateway provides communication between the equipment and Building Automation Systems, including BACnet (MS/TP), Modbus,
LON and N2.
Thermal Storage – Provides special control logic and
modifications to produce leaving chilled brine temperatures below 4.4°C (40°F) primarily at times of low
ambient temperatures (night time). Option can be used
to produce ice to supplement cooling and significantly
decrease energy costs. The capability of the chiller is
enhanced by using both ice and chilled water simultaneously during times of peak cooling needs.
General Options
Flow Switch Accessory – Vapor proof SPDT, NEMA
3R switch, 10.3 barg (150 psig) DWP, -29°C to 121°C
(-20°F to 250°F) with 1" NPT (IPS) connection for
upright mounting in horizontal pipe. This flow switch
or equivalent must be furnished with each unit. Field
mounted.
Differential Pressure Switch – This 0.2-3 barg (3-45
psig) range switch, with 1/4" NPTE pressure connections, is an alternative to the paddle-type flow switch.
Field mounted.
Service Isolation Valve – Service suction isolation
valve added to unit for each refrigerant circuit.
Dual Pressure Relief Valve – Two safety relief valves
are mounted in parallel; one is always operational to
assist in valve replacement during maintenance.
Terminal Block [not available for CE marked units]
Terminal Block connections shall be provided at the
point of incoming single point connection for field
connection and interconnecting wiring to the compressors. Separate external protection must be supplied,
by others, in the incoming power wiring, which must
comply with local codes.
22
JOHNSON CONTROLS
Page 23
FORM 201.28-NM1.1
ISSUE DATE: 1/31/2018
SECTION 2 - PRODUCT DESCRIPTION
Circuit Breaker – A unit-mounted circuit breaker with
external lockable handle will be supplied to isolate the
single point power voltage for servicing. The circuit
breaker is sized to provide motor branch circuit protection, short circuit protection and ground fault protection for the motor branch-circuit conductors, the motor
control apparatus and the motors.
Non-Fused Disconnect Switch – Unit-mounted disconnect switch with external lockable handle can be
supplied to isolate the unit power voltage for servicing.
Separate external fusing must be supplied by the power
wiring, which must comply with local codes.
Vibration Isolation
Elastomeric Isolation – This option is recommended
for normal installations. It provides very good performance in most applications for the least cost. Field
mounted.
25 mm (1") Spring Isolators – Spring and cage type
isolators for mounting under the unit base rails are
available to support unit. They are level adjustable.
25 mm (1") nominal deflection may vary slightly by
application. Field mounted.
50 mm (2") Restrained Spring Isolators – Restrained
Spring-Flex Mounting isolators incorporate a rugged
welded steel housing with vertical and horizontal limit
stops. Housings designed to withstand a minimum 1.0g
accelerated force in all directions up to 51 mm (2").
The deflection may vary slightly by application. They
are level adjustable. Field mounted.
2
JOHNSON CONTROLS
23
Page 24
FORM 201.28-NM1.1
ISSUE DATE: 10/12/2017
THIS PAGE INTENTIONALLY LEFT BLANK
24
JOHNSON CONTROLS
Page 25
FORM 201.28-NM1.1
ISSUE DATE: 1/31/2018
SECTION 3 - RIGGING, HANDLING AND STORAGE
3
Rigging and lifting should only be done by a professional rigger in accordance with a written
rigging and lifting plan. The most appropriate rigging and lifting method will depend on job specic
factors, such as the rigging equipment available and site needs. Therefore, a professional rigger
must determine the rigging and lifting method to be used, and it is beyond the scope of this manual
to specify rigging and lifting details.
LIFTING WEIGHTS
Refer to the unit nameplate for unit shipping weight.
Note that weight may vary depending on unit configuration at the time of lifting. See Table 5 on page 64
or Table 6 on page 68 for further information regard-
ing shipping and operating weights.
DELIVERY AND STORAGE
To ensure consistent quality and maximum reliability,
all units are tested and inspected before leaving the
factory. Units are shipped completely assembled
and containing refrigerant under pressure. Units are
shipped without export crating unless crating has been
specified on the Sales Order.
If the unit is to be put into storage, prior to installation,
the following precautions should be observed:
LD19197
• The chiller must be “blocked” so that the base is
not permitted to sag or bow.
• Ensure that all openings, such as water connections, are securely capped.
• Do not store where exposed to high ambient air
temperatures that may exceed relief valve settings. Refer to Long-Term Storage Requirement
- Field Preparation (Form 50.20-NM7).
• The condensers should be covered to protect the
coils and ns from potential damage and corrosion,
particularly where building work is in progress.
• The unit should be stored in a location where there
is minimal activity in order to limit the risk of accidental physical damage.
• To prevent inadvertent operation of the pressure
relief devices the unit must not be steam cleaned.
JOHNSON CONTROLS
• It is recommended that the unit is periodically
inspected during storage.
25
Page 26
SECTION 3 - RIGGING, HANDLING AND STORAGE
LOCKING PIN
LUG
FLANGE
LIFTING HOLE
IN BASE FRAME
CORRECT
LOCKING PIN
LUG
LIFTING HOLE
IN BASE FRAME
FLANGE
INCORRECT
LOCKING
PIN
FLANGE
LUG
INSPECTION
Remove any transit packing and inspect the unit to
ensure that all components have been delivered and
that no damage has occurred during transit. If any
damage is evident, it should be noted on the carrier’s
freight bill and a claim entered in accordance with the
instructions given on the advice note.
\Major damage must be reported immediately to your
local Johnson Controls representative.
FORM 201.28-NM1.1
ISSUE DATE: 1/31/2018
LD19197a
MOVING THE CHILLER
Prior to moving the unit, ensure that the installation
site is suitable for installing the unit and is easily
capable of supporting the weight of the unit and all
associated services.
The unit must only be lifted by the base
frame at the points provided. Never move
the unit on rollers, or lift the unit using a
forklift truck.
Care should be taken to avoid damaging the condenser
cooling fins when moving the unit.
UNIT REMOVAL FROM SHIPPING
CONTAINER
1. Place a clevis pin into the holes provided at the
end of each base rail on the unit. Attach chains or
nylon straps through the clevis pins and hook onto
a suitable lift truck for pulling the unit out of the
container.
LIFTING USING LUGS
Units are provided with lifting holes in the base frame
which accept the accessory lifting lug set as shown
in the figure below. The lugs (RH and LH) should be
inserted into the respective holes in the base frame and
turned so that the spring loaded pin engages into the
hole and the flanges on the lug lock behind the hole.
The lugs should be attached to the cables/chains using
shackles or safety hooks.
2. Slowly place tension on the chains or straps until
the unit begins to move and then slowly pull the
unit from the container. Be sure to pull straight so
the sides do not scrape the container.
3. Place a lifting xture on the forks of the lift truck
and reattach the chain or strap. Slightly lift the
front of the unit to remove some weight from the
oor of the container. Continue pulling the unit
with an operator on each side to guide the lift
truck operator.
4. Pull the unit until the lifting locations are outside
of the container. Place 4 X 4 blocks of wood under
the base rails of the unit. Gently rest the unit on
the blocks and remove the chains and lift truck.
5. Attach lifting rigging from the crane and slowly
complete the removal from the container then lift
up and away.
26
LD19197b
LIFTING USING SHACKLES
The shackles should be inserted into the respective
holes in the base frame and secured from the inside.
• Use spreader bars to avoid lifting chains hitting the
chiller. Various methods of spreader bar arrangements may be used, keeping in mind the intent is
to keep the unit stable and to keep the chains from
hitting the chiller and causing damage.
• Never lift the chiller using a forklift or by hooking to the top rails. Use only the lifting holes provided.
• Lifting Instructions are placed on a label on the
chiller and on the shipping bag.
JOHNSON CONTROLS
Page 27
FORM 201.28-NM1.1
ISSUE DATE: 10/12/2017
SECTION 3 - RIGGING, HANDLING AND STORAGE
THIS PAGE INTENTIONALLY LEFT BLANK
JOHNSON CONTROLS
27
Page 28
SECTION 3 - RIGGING, HANDLING AND STORAGE
TABLE 1 - UNIT RIGGING
FORM 201.28-NM1.1
ISSUE DATE: 1/31/2018
LD18582
YVAA MODEL
DESCRIPTION UNITS
RIGGING HOLES
FRAMECONDEVAPABCDEFGH
0153B
0165B
0178C
0183A
0195A
0198B
0200C
0213A
0215C
0218C
Rigging Hole
Location
Rigging Hole
Location
Rigging Hole
Location
Rigging Hole
Location
Rigging Hole
Location
Rigging Hole
Location
Rigging Hole
Location
Rigging Hole
Location
Rigging Hole
Location
Rigging Hole
Location
inches1860116192
mm464151229374866
inches1860 137214
mm464153334825435
inches1273144197260
mm3141845365450126593
inches1860143220
mm464153336365598
inches1860143227272
mm4641533363657616920
inches1860137215302
mm4641533348454557670
inches1860131214
mm.464151833325430
inches1860143227272
mm4641533363757616920
inches1273144197260
mm3141845365450126593
inches1273163254324
mm3141845414464438218
NOTE: Rigging and lifting the unit must be done safely by a professional rigger as discussed in this section. The rigger should locate the center of
gravity through trial lifts to account for possible variations in unit conguration. Contact your nearest Johnson Controls Sales Ofce for weight data.
28
JOHNSON CONTROLS
Page 29
FORM 201.28-NM1.1
ISSUE DATE: 1/31/2018
TABLE 1 - UNIT RIGGING (CONT'D)
SECTION 3 - RIGGING, HANDLING AND STORAGE
3
LD18582
YVAA MODEL
DESCRIPTION UNITS
RIGGING HOLES
FRAMECONDEVAPIJKLMNOP
0153B
0165B
0178C
0183A
0195A
0198B
0200C
0213A
0215C
0218C
Rigging Hole
Location
Rigging Hole
Location
Rigging Hole
Location
Rigging Hole
Location
Rigging Hole
Location
Rigging Hole
Location
Rigging Hole
Location
Rigging Hole
Location
Rigging Hole
Location
Rigging Hole
Location
inches1860116192
mm464151129374866
inches1860137214
mm464153334855435
inches1273144197260
mm3141845365450126593
inches1860143220
mm464153336365598
inches1860143227272
mm4641533363657616920
inches1860137215302
mm4641533348454557670
inches60131214
mm151833325430
inches1860143227272
mm4641533363757616920
inches1273144197260
mm3141845365450126593
inches1273163254324
mm3141845414464438218
NOTE: Rigging and lifting the unit must be done safely by a professional rigger as discussed in this section. The rigger should locate the center of
gravity through trial lifts to account for possible variations in unit conguration. Contact your nearest Johnson Controls Sales Ofce for weight data.
JOHNSON CONTROLS
29
Page 30
SECTION 3 - RIGGING, HANDLING AND STORAGE
TABLE 1 - UNIT RIGGING (CONT'D)
FORM 201.28-NM1.1
ISSUE DATE: 1/31/2018
LD18582
YVAA MODEL
DESCRIPTION UNITS
RIGGING HOLES
FRAMECONDEVAPABCDEFGH
0233B
0245C
0248C
0263B
0273D
0275E
0278E
0295E
0303C
Rigging Hole
Location
Rigging Hole
Location
Rigging Hole
Location
Rigging Hole
Location
Rigging Hole
Location
Rigging Hole
Location
Rigging Hole
Location
Rigging Hole
Location
Rigging Hole
Location
inches1860137215272
mm4641533348554566919
inches1860149240324
mm4641533378960888218
inches1273 163254347
mm3141845414464438825
inches18 60 137 215 302
mm4641533348454557670
inches12 73121181264324
mm31418453073460167178217
inches1273121181264 324
mm31418453073460167178218
inches12 73121 181243347
mm31418453073460161698825
inches12 73 179 290 347
mm3141845455173588825
inches12 73 161254347
mm3141845409264438825
NOTE: Rigging and lifting the unit must be done safely by a professional rigger as discussed in this section. The rigger should locate the center of
gravity through trial lifts to account for possible variations in unit conguration. Contact your nearest Johnson Controls Sales Ofce for weight data.
30
JOHNSON CONTROLS
Page 31
FORM 201.28-NM1.1
ISSUE DATE: 1/31/2018
TABLE 1 - UNIT RIGGING (CONT'D)
SECTION 3 - RIGGING, HANDLING AND STORAGE
3
LD18582
YVAA MODEL
DESCRIPTION UNITS
RIGGING HOLES
FRAMECONDEVAPIJKLMNOP
0233B
0245C
0248C
0263B
0273D
0275E
0278E
0295E
0303C
Rigging Hole
Location
Rigging Hole
Location
Rigging Hole
Location
Rigging Hole
Location
Rigging Hole
Location
Rigging Hole
Location
Rigging Hole
Location
Rigging Hole
Location
Rigging Hole
Location
inches1860137215272
mm4641533348554566919
inches1860149240324
mm4641533378960888218
inches1273163254347
mm3141845414464438825
inches1860137215302
mm4641533348454557670
inches12 73 121 181264324
mm31418453073460167178218
inches1273121181264324
mm31418453073460167178218
inches1273121181243347
mm31418453073460161698825
inches12 73 179290347
mm3141845455173588825
inches12 73 161 254347
mm3141845409264438825
NOTE: Rigging and lifting the unit must be done safely by a professional rigger as discussed in this section. The rigger should locate the center of
gravity through trial lifts to account for possible variations in unit conguration. Contact your nearest Johnson Controls Sales Ofce for weight data.
JOHNSON CONTROLS
31
Page 32
SECTION 3 - RIGGING, HANDLING AND STORAGE
TABLE 1 - UNIT RIGGING (CONT'D)
FORM 201.28-NM1.1
ISSUE DATE: 1/31/2018
LD18582
YVAA MODEL
DESCRIPTION UNITS
RIGGING HOLES
FRAMECONDEVAPABCDEFGH
0305C
0308E
0318E
0323E
0333C
0343E
0345E
0368J
0373F
0375J
Rigging Hole
Location
Rigging Hole
Location
Rigging Hole
Location
Rigging Hole
Location
Rigging Hole
Location
Rigging Hole
Location
Rigging Hole
Location
Rigging Hole
Location
Rigging Hole
Location
Rigging Hole
Location
inches1273161254306391
mm31418454092644377639941
inches12 73 121179243 296 391
mm314184530724549616975089942
inches1273 121179 243 353 435
mm3141845307245496169896211059
inches1273121181243347
mm31418453073460161698825
inches1273163254306391
mm31418454144644377659942
inches1273121181243296391
mm314184530734602617075119942
inches1273121181243 353435
mm3141845307346026170896111059
inches1273181238302392434501
mm3141845460260397662995711024 12725
inches1273181238302435
mm314184546026039766211059
inches1273181238302435
mm314184546026039766211059
NOTE: Rigging and lifting the unit must be done safely by a professional rigger as discussed in this section. The rigger should locate the center of
gravity through trial lifts to account for possible variations in unit conguration. Contact your nearest Johnson Controls Sales Ofce for weight data.
32
JOHNSON CONTROLS
Page 33
FORM 201.28-NM1.1
ISSUE DATE: 1/31/2018
TABLE 1 - UNIT RIGGING (CONT'D)
SECTION 3 - RIGGING, HANDLING AND STORAGE
3
LD18582
YVAA MODEL
DESCRIPTION UNITS
RIGGING HOLES
FRAMECONDEVAPIJKLMNOP
0305C
0308E
0318E
0323E
0333C
0343E
0345E
0368J
0373F
0375J
Rigging Hole
Location
Rigging Hole
Location
Rigging Hole
Location
Rigging Hole
Location
Rigging Hole
Location
Rigging Hole
Location
Rigging Hole
Location
Rigging Hole
Location
Rigging Hole
Location
Rigging Hole
Location
inches1273161254306391
mm31418454092644377639941
inches1273121179243296391
mm314184530724549616975089942
inches1273121179243353435
mm3141845307245496169896211059
inches1273121181243347
mm3141845307346016169347
inches1273163254306391
mm31418454144644377659942
inches12 73121181243296391
mm314184530734602617075119942
inches1273121181243353435
mm3141845307346026170896111059
inches1273181238302392434501
mm3141845460260397662995711024 12725
inches1273181238302435
mm314184546026039766211059
inches1273181238302435
mm314184546026039766211059
NOTE: Rigging and lifting the unit must be done safely by a professional rigger as discussed in this section. The rigger should locate the center of
gravity through trial lifts to account for possible variations in unit conguration. Contact your nearest Johnson Controls Sales Ofce for weight data.
JOHNSON CONTROLS
33
Page 34
SECTION 3 - RIGGING, HANDLING AND STORAGE
TABLE 1 - UNIT RIGGING (CONT'D)
FORM 201.28-NM1.1
ISSUE DATE: 1/31/2018
LD18582
YVAA MODEL
DESCRIPTION UNITS
RIGGING HOLES
FRAMECONDEVAPABCDEFGH
0398J
0413H
0425H
0428J
0443G
0475J
0483G
0490K
0500J
0523J
Rigging Hole
Location
Rigging Hole
Location
Rigging Hole
Location
Rigging Hole
Location
Rigging Hole
Location
Rigging Hole
Location
Rigging Hole
Location
Rigging Hole
Location
Rigging Hole
Location
Rigging Hole
Location
inches1273181238302435478545
mm314184546026039735811059 12135 13835
inches1273 181238302435
mm314184546016039766211059
inches12 73 181238302435 478 545
mm314184546026039735811059 12135 13835
inches12 73 181238 302435494572
mm314184546026039735811059 12546 14541
inches1273181238290435478 545
mm314184546026039766211059 12135 13835
inches1273181238290435494572
mm314184546026039735811059 12546 14541
inches1273181238290435 494572
mm314184546026039735811059 12546 14529
inches1273181238290435
mm305185445976045736611049
inches1273181238290435572
mm30518544597604573661104914529
inches1273181238290435494572
mm305185445976045736611049 12548 14529
NOTE: Rigging and lifting the unit must be done safely by a professional rigger as discussed in this section. The rigger should locate the center of
gravity through trial lifts to account for possible variations in unit conguration. Contact your nearest Johnson Controls Sales Ofce for weight data.
34
JOHNSON CONTROLS
Page 35
FORM 201.28-NM1.1
ISSUE DATE: 1/31/2018
TABLE 1 - UNIT RIGGING (CONT'D)
SECTION 3 - RIGGING, HANDLING AND STORAGE
3
LD18582
YVAA MODEL
DESCRIPTION UNITS
RIGGING HOLES
FRAMECONDEVAPIJKLMNOP
0398J
0413H
0425H
0428J
0443G
0475J
0483G
0490K
0500J
0523J
Rigging Hole
Location
Rigging Hole
Location
Rigging Hole
Location
Rigging Hole
Location
Rigging Hole
Location
Rigging Hole
Location
Rigging Hole
Location
Rigging Hole
Location
Rigging Hole
Location
Rigging Hole
Location
inches1273181 238302435478545
mm314184546026039735811059 12135 13835
inches1273181238302435
mm314184546016039766211059
inches1273181238302435478545
mm314184546026039735811059 12135 13835
inches1273181238302435494572
mm314184546026039735811059 12546 14541
inches1273181238290 435478545
mm314184546026039735811059 12135 13835
inches1273181238290435494572
mm314184546026039735811059 12546 14541
inches1273181238290435
mm305185445976045736611049
inches1273181238290435
mm305185445976045736611049
inches1273181238290435
mm305185445976045736611049
inches1273181238 290 435 494572
mm305185445976045736611049 12548 14529
NOTE: Rigging and lifting the unit must be done safely by a professional rigger as discussed in this section. The rigger should locate the center of
gravity through trial lifts to account for possible variations in unit conguration. Contact your nearest Johnson Controls Sales Ofce for weight data.
JOHNSON CONTROLS
35
Page 36
SECTION 3 - RIGGING, HANDLING AND STORAGE
FORM 201.28-NM1.1
ISSUE DATE: 10/12/2017
THIS PAGE INTENTIONALLY LEFT BLANK
36
JOHNSON CONTROLS
Page 37
FORM 201.28-NM1.1
ISSUE DATE: 1/31/2018
SECTION 4 - INSTALLATION
LOCATION REQUIREMENTS
For optimum performance and trouble-free service, it
is essential that the installation site meet the location
and space requirements for the model being installed.
It is important to ensure that the minimum service
access space is maintained for cleaning and maintenance purposes.
OUTDOOR INSTALLATIONS
The units are designed for outdoor installation and
can be installed at ground level on a suitable flat level
foundation easily capable of supporting the weight of
the unit, or on a suitable rooftop location. In both cases
an adequate supply of air is required. Avoid locations
where the sound output and air discharge from the unit
may be objectionable.
The location should be selected for minimum sun
exposure and away from boiler flues and other sources
of airborne chemicals that could attack the condenser
coils and steel parts of the unit.
If located in an area accessible to unauthorized persons, steps must be taken to prevent access to the
unit by means of a protective fence. This will help to
prevent the possibility of vandalism, accidental damage, or possible harm caused by unauthorized removal
of protective guards or opening panels to expose rotating or high voltage components.
For ground level locations, the unit must be installed
on a suitable flat and level concrete base that extends
to fully support the two side channels of the unit
base frame. A one-piece concrete slab, with footings
extending below the frost line is recommended.
To avoid noise and vibration transmission, the unit
should not be secured to the building foundation.
On rooftop locations, choose a place with adequate
structural strength to safely support the entire operating
weight of the unit and service personnel. The unit can
be mounted on a concrete slab, similar to ground floor
locations, or on steel channels of suitable strength. The
channels should be spaced with the same centers as the
unit side and front base rails. This will allow vibration
isolators to be fitted if required. Isolators are recommended for rooftop locations.
Mounting holes (5/8”) are provided in the base rails for
bolting the unit to its foundation. See Table 10 on Page 84 for location of the mounting holes.
Any ductwork or attenuators fitted to the unit must not
have a total static pressure resistance, at full unit airflow, exceeding the capability of the fans installed in
the unit.
The condenser fans are propeller-type and are not
recommended for use with ductwork, filters or other
impediments to airflow in the condenser air stream.
When it is desirable to surround the unit(s) in
addition to the optional louver package selected, it is
recommended that the screening passes the required
chiller CFM without exceeding 0.1 w.g. (24.9084 pa)
external static pressure.
Protection against corrosive environments is available by ordering the units with cured epoxy-coating on
the microchannel condenser coil. Epoxy-coated coils
should be used with any units being installed at the seashore where salt spray/mist may hit the units, or where
acid rain is prevalent.
On installations where winter operation is intended and
snow accumulations are expected, additional elevation
must be provided to insure normal condenser air flow.
Avoid locations near windows or structures where
normal operating sounds may be objectionable.
LOCATION CLEARANCES
Adequate clearances around the unit(s) are required for
the unrestricted airflow for the air-cooled condenser
coils and to prevent re-circulation of warm discharge
air back onto the coils. If clearances given are not
maintained, airflow restriction or re-circulation will
cause a loss of unit performance, an increase in power
consumption, and may cause the unit to malfunction.
Consideration should also be given to the possibility of
down drafts, caused by adjacent buildings, which may
cause re-circulation or uneven unit airflow.
For locations where significant cross winds are expected, such as exposed roof tops, an enclosure of solid
or louver type is recommended to prevent wind turbulence interfering with the unit airflow.
When units are installed in an enclosure, the enclosure
height should not exceed the height of the unit on more
than one side. If the enclosure is of louvered construction, the same requirement of static pressure loss applies as for ducts and attenuators stated above.
4
JOHNSON CONTROLS
37
Page 38
SECTION 4 - INSTALLATION
FORM 201.28-NM1.1
ISSUE DATE: 1/31/2018
Recommended Minimum Clearances
Recommended clearances for the YVAA units are:
• Side to wall – 6' (1.8 m)
• Rear to wall – 6' (1.8 m)
• Control panel end to wall – 4' (1.2 m)
• Top – no obstructions whatsoever
• Distance between adjacent units – 10' (3 m)
A
1.8 m (6')
Minimum
1.2 m (4')
Minimum
Tube Removal
Clearance Area
B
C
A
3 m (10')
Minimum
Control Panel
Tube Removal
Clearance Area
FIGURE 4 - ACCEPTABLE MINIMUM CLEARANCES
AROUND/BETWEEN UNIT(S)
Clearance dimensions provided in
Figure 4 on page 38 and Table 2 on
Page 38 are necessary to maintain good
airow and ensure correct unit operation. It is also necessary to consider access requirements for safe operation and
maintenance of the unit and power and
control panels. Local health and safety
regulations, or practical considerations
for service replacement of large components, may require larger clearances than
those recommended.
Optional sets of vibration isolators can be supplied
loose with each unit.
Using the Isolator tables shipped with the unit in the
information pack. Identify each mount and its correct
location on the unit.
Installation
Place each mount in its correct position and lower the
unit carefully onto the mounts ensuring the mount
engages in the mounting holes in the unit base frame.
On adjustable mounts, transfer the unit weight evenly to the springs by turning the mount adjusting nuts
(located just below the top plate of the mount) counterclockwise to raise and clockwise to lower. This should
be done two turns at a time until the top plates of all
mounts are between 1/4" (6 mm) and 1/2" (12 mm)
clear of top of their housing and the unit base is level.
SHIPPING BRACES
The chiller’s modular design does not require shipping
braces.
CHILLED LIQUID PIPING
General Requirements
The following piping recommendations are intended to
ensure satisfactory operation of the unit(s). Failure to
follow these recommendations could cause damage to
the unit, or loss of performance, and may invalidate the
warranty.
The maximum ow rate and pressure drop
for the evaporator must not be exceeded
at any time. See "SECTION 5 - TECHNICAL DATA" on page 63 for details.
The Maximum acceptable Chilled Liquid
pressure in the inlet of Evaporator is same
as the statement in "Maximum Tube Side
Pressure" of Pressure Vessel Name Plate
for YVAA and YVFA with Falling Film
Evaporator.
The liquid must enter the evaporator at
the inlet connection. The standard inlet
connection for the evaporator is opposite
the control panel end of the evaporator.
A ow switch must be installed in the
customer piping at the outlet of the
evaporator and wired back to the control
panel using shielded cable.
JOHNSON CONTROLS
There should be a straight run of piping of at least
5 pipe diameters on either side. The flow switch should
be wired to Terminals 2 and 13 on the 1TB terminal
block. A flow switch is required to prevent damage to
the evaporator caused by the unit operating without
adequate liquid flow.
The flow switch used must have gold plated contacts for
low voltage/current operation. Paddle type flow switches suitable for 10 bar (150 PSIG) working pressure and
having a 1" N.P.T. connection can be obtained from
Johnson Controls as an accessory for the unit. Alternatively, a differential pressure switch fitted across an orifice plate may be used, preferably of the high/low limit
type.
The chilled liquid pump(s) installed in the piping
system(s) should discharge directly into the unit evaporator section of the system. The pump(s) may be controlled by the chiller controls or external to the unit.
Pipework and fittings must be separately supported to
prevent any loading on the evaporator. Flexible connections are recommended which will also minimize
transmission of vibrations to the building. Flexible
connections must be used if the unit is mounted on
anti-vibration mounts, as some movement of the unit
can be expected in normal operation.
Piping and fittings immediately next to the evaporator should be readily de-mountable to enable cleaning
before operation, and to facilitate visual inspection of
the exchanger nozzles.
The evaporator must be protected by a
strainer, preferably of 16 mesh, tted as
close as possible to the liquid inlet connection, and provided with a means of local
isolation.
The evaporator must not be exposed to flushing velocities or debris released during flushing. It is recommended that a suitably sized bypass and valve arrangement
is installed to allow flushing of the piping system. The
bypass can be used during maintenance to isolate the
heat exchanger without disrupting flow to other units.
Thermometer and pressure gauge connections should
be provided on the inlet and outlet connections of each
evaporator. Gauges and thermometers are not provided
with the unit and are to be furnished by others.
Drain and air vent connections should be provided at
all low and high points in the piping to permit drainage
of the system and to vent any air in the pipes. Liquid
system lines at risk of freezing, due to low ambient temperatures should be protected using insulation and heater
tape and/or a suitable glycol solution.
39
4
Page 40
SECTION 4 - INSTALLATION
200400
6008001000
1200
0.0
10.0
20.0
30.0
40.0
50.0
Water Te mperature = 50°F
Water Pressure Drop (ft. H O)
B
Water Pressure Drop (ft. H O)
Flow Rate (GPM)
LD20287
Evaporator Type
A
D
C
E
H, K
F, G
I, J
FORM 201.28-NM1.1
ISSUE DATE: 1/31/2018
The liquid pump(s) may also be used to ensure liquid
is circulated when the ambient temperature approaches
freezing point.
Insulation should also be installed around the evaporator nozzles. Heater tape of 21 Watts per meter under
the insulation is recommended, supplied independently
and controlled by an ambient temperature thermostat
set to switch ON at approximately 2.2°C (4°F), above
the freezing temperature of the chilled liquid.
Evaporator heater mats are installed under the insulation, and are powered from the chiller's control panel. In sub-freezing conditions, unless the evaporator
has been drained or an appropriate water-to-glycol
concentration is maintained, high voltage power to the
chiller must be kept on to ensure the heater mats assist
in evaporator freeze protection. If there is a potential
for power loss, Johnson Controls recommends that the
evaporator is drained or that water in the chilled water
circuit be replaced with an appropriate water-to-glycol
concentration.
Any debris left in the water piping
between the strainer and evaporator could
cause serious damage to the tubes in the
evaporator and must be avoided. Be sure
the piping is clean before connecting it to
the evaporator. Keep evaporator nozzles
and chilled liquid piping capped prior to
installation to assure construction debris
is not allowed to enter.
The installer/user must also ensure that
the quality of the water in circulation is
adequate, without any dissolved gases,
which can cause oxidation of steel or
copper parts within the evaporator.
EVAPORATOR PRESSURE DROP
The evaporator is designed in accordance with
ARI-590-92 which allows for an increase in pressure
drop of up to 15% above the design value shown in the
Pressure Drop tables shown in Figure 5 on Page 40
and Figure 6 on Page 41. Debris in the water may
also cause additional pressure drop.
Excessive ow above the maximum GPM
will damage the evaporator.
To determine evaporator/frame size See
Table 12 on page 109 to find the applicable evaporator line.
FIGURE 5 - THREE PASS WATER PRESSURE DROP, ENGLISH UNITS
40
JOHNSON CONTROLS
Page 41
FORM 201.28-NM1.1
100
ISSUE DATE: 1/31/2018
140
120
100
80
60
Evaporator A
SECTION 4 - INSTALLATION
Evaporator C
Evaporator B
Evaporator E
Pressure Drop (KPa)
40
20
0
020406080
Water Flow Rate (l/s)
FIGURE 6 - TWO PASS WATER PRESSURE DROP, SI UNITS
WATER TREATMENT
The unit performance provided in the Design Guide
is based on a fouling factor of 0.018m2/hr °C/kW
PIPEWORK ARRANGEMENT
The following is a suggested piping arrangement for
single unit installations.
(0.0001 ft2hr°F/Btu). Dirt, scale, grease and certain
types of water treatment will adversely affect the heat
exchanger surfaces and therefore the unit performance.
Foreign matter in the water system(s) can increase the
heat exchanger pressure drop, reducing the flow rate and
causing potential damage to the heat exchanger tubes.
Aerated, brackish or salt water is not recommended for
use in the water system(s). Johnson Controls recommends that a water treatment specialist should be consulted to determine whether the proposed water composition will adversely affect the evaporator materials
of carbon steel and copper. The pH value of the water
flowing through the evaporator must be kept in a range
between 7 and 8.5.
LD15147
-Isolating Valve - Normally Open
-Isolating Valve - Normally Closed
-Flow Regulating Valve
-Flow Measurement Device
-Strainer
-Pressure Tapping
-Flow Switch
-Flanged Connection
-Pipework
4
LD15151
JOHNSON CONTROLS
FIGURE 7 - PIPEWORK ARRANGEMENT
41
Page 42
SECTION 4 - INSTALLATION
FORM 201.28-NM1.1
ISSUE DATE: 1/31/2018
MINIMUM WATER VOLUME
It is good practice to include as much water volume
as possible in a chilled water loop. This increases the
thermal mass and “Flywheel” effect within the system
(that is, the more; the better) which in turn promotes
stable water temperature control and increases reliability by reducing compressor cycling.
For air conditioning applications, a minimum of 3
gallons/ton is required. with a preferred gallon/ton
ratio to be within the 5 to 8 range. For process applications, a minimum of 6 gallons/ton ratio is required with
preference towards a range of 7 to 11. Install a tank or
increase pipe sizes to provide sufficient water volume.
LEAVING WATER TEMPERATURE OUT OF
RANGE
The YVAA chiller line has a maximum leaving water
temperature of 15.6°C (60°F). Where process applications require a chilled water temperature higher than
what the chiller provides, a simple piping change can
remove the problem. By using a mixture of chillercooled water and returning process water, the chilled
water entering the process can be held at the desired
temperature. A tank can also be used to meet high
leaving water temperature requirements.
Each YVAA evaporator has a minimum and maximum
flow rate. Some process applications require a flow
rate that is out of range for the evaporator. In those applications, a piping change can remove the problem.
In applications where the required flow rate is less than
the evaporator’s minimum allowable, the chilled water
can be recirculated to the chiller.
BYPASS
SUPPLY TO LOAD
RETURN FROM LOAD
LOAD
LD15049
FIGURE 9 - SUGGESTED LAYOUT FOR
APPLICATIONS WITH A FLOW RATE
LESS THAN THE EVAPORATOR
MINIMUM ALLOWABLE FLOW RATE
In applications where the required flow rate is greater
than the evaporator’s maximum allowable, the chilled
water can be recirculated to the load.
RECIRCULATION
SUPPLY TO LOAD
RETURN FROM LOAD
LOAD
LD15049
FIGURE 8 - LEAVING WATER TEMPERATURE OUT
OF RANGE SUGGESTED LAYOUT
42
BYPASS
SUPPLY TO LOAD
LOAD
LD15051
FIGURE 10 - SUGGESTED LAYOUT FOR
APPLICATIONS WITH A FLOW RATE
GREATER THAN THE EVAPORATOR
MAXIMUM ALLOWABLE FLOW RATE
JOHNSON CONTROLS
Page 43
FORM 201.28-NM1.1
ISSUE DATE: 1/31/2018
SECTION 4 - INSTALLATION
THERMAL STORAGE
Thermal storage is the practice of storing cooling
energy during a period of little or no load and/or low
energy costs for use during periods of high load and/
or energy costs. Conventional cooling systems produce cooling when it is needed which is commonly
during times of peak demand. Thermal storage allows
generation of cooling capacity to occur during offpeak periods and store that capacity to meet future
cooling requirements. Using thermal storage can result
in smaller equipment sizes, thereby reducing capital
cost, and also can result in significant energy cost savings.
The YVAA has special control logic to be able to produce chilled leaving brine temperatures below 4.4°C
(40°F) so as to supply a storage tank with chilled liquid
during times of low demand. YVAA chillers selected
for thermal storage operation can also be selected to efficiently provide chilled fluid at nominal cooling loads.
VARIABLE PRIMARY FLOW
CONNECTION TYPES AND SIZES
For connection sizes relevant to individual models see
SECTION 5 - TECHNICAL DATA.
EVAPORATOR CONNECTIONS
Standard chilled liquid connections on evaporators
are of the Victaulic Groove type for ASME and PED
marked units and Flange type for GB marked units (see
Figure 12 on page 45 for flange dimensions on GB
marked vessels).
LD10494
FIGURE 11 - VICTAULIC GROOVE
4
Johnson Controls recommends a maximum 10% per minute flow rate of change, based on design flow, for variable primary flow applications. Provide 8 to 10 gallons
per chiller ton (8.6 to 10.8 liter per cooling KW) system
water volume. Insufficient system volume and rapid flow
changes can cause control problems or can even cause
chiller shutdowns. There are many other design issues
to evaluate with variable primary flow systems. Consult
your Johnson Controls Sales Office for more information
about successfully applying YVAA chillers.
* Reference Figure 12 on Page 45 for ange dimensions.
QTY
44
JOHNSON CONTROLS
Page 45
FORM 201.28-NM1.1
L
ISSUE DATE: 1/31/2018
SECTION 4 - INSTALLATION
B
n-
K
d
D
C
4" / 6" / 8" FLANGE10" FLANGE
FIGURE 12 - FLANGE FOR GB VESSELS
Option Flanges
One of two types of flanges may be fitted depending
on the customer or local pressure vessel code requirements. These are Victaulic-Adapter flanges, normally
supplied loose, or weld flanges, which may be supplied loose or ready-fitted. Victaulic-Adapter and weld
flange dimensions are to ISO 7005 - NP10.
n-L
B
K
d
D
The size of any piping attached to a relief valve must
be of sufficient diameter so as not to cause resistance to
the operation of the valve. Unless otherwise specified
by local regulations. Internal diameter depends on the
length of pipe required and is given by the following
formula:
D5 = 1.447 x L
C
LD16185a
4
WELD FLANGE
FIGURE 13 - FLANGE ATTACHMENT
REFRIGERANT RELIEF VALVE PIPING
The evaporator is protected against internal refrigerant
overpressure by refrigerant relief valves. A pressure relief valve is mounted on each of the main refrigerant
lines connecting the evaporator to the compressors.
A piece of pipe is fitted to each valve and directed so
that when the valve is activated the release of high
pressure gas and liquid cannot be a danger or cause
injury. For indoor installations (not recommended),
pressure relief valves should be piped to the exterior
of the building.
VICTAULIC ADAPTER
LD10495
Where:
• D = minimum pipe internal diameter in cm
• L = length of pipe in meters
If relief piping is common to more than one valve, its
cross-sectional area must be at least the total required
by each valve. Valve types should not be mixed on a
common pipe. Precautions should be taken to ensure
the outlets of relief valves or relief valve vent pipes
remain clear of obstructions at all times.
ELECTRICAL CONNECTION
The following connection recommendations are intended to ensure safe and satisfactory operation of the
unit. Failure to follow these recommendations could
cause harm to persons or damage the unit, and may
invalidate the warranty.
No additional controls (relays, and so on)
should be mounted in the control panel.
Power and control wiring not connected
to the control panel should not be run
through the control panel. If these precautions are not followed it could lead to
a risk of electrocution. In addition, electrical noise could cause malfunctions or
damage the unit and its controls.
JOHNSON CONTROLS
45
Page 46
SECTION 4 - INSTALLATION
FORM 201.28-NM1.1
ISSUE DATE: 1/31/2018
After power wiring connection, do not
switch on mains power to the unit. Some
internal components are live when the
mains are switched on and this must
only be done by “Authorized” persons
familiar with starting, operating, and
troubleshooting this type of equipment.
POWER WIRING
All electrical wiring should be carried out in accordance with local regulations. Route properly sized
cables to cable entries on the unit.
In accordance with local codes, NEC codes, U.L. and
C.E. standards, it is the responsibility of the user to
install over current protection devices between the
supply conductors and the power supply terminals on
the unit.
To ensure that no eddy currents are set up in the power
panel, the cables forming the 3-phase power supply
must enter via the same cable entry.
All sources of supply to the unit must be
taken via a common point of isolation (not
supplied by Johnson Controls).
Copper power wiring only should be used for supplying power to the chiller. This is recommended to avoid
safety and reliability issues resulting from connection
failure at the power connections to the chiller. Aluminum wiring is not recommended due to thermal characteristics that may cause loose terminations resulting from the contraction and expansion of the wiring.
Aluminum oxide may also build up at the termination
causing hot spots and eventual failure. If aluminum
wiring is used to supply power to the chiller, AL-CU
compression fittings should be used to transition from
aluminum to copper. This transition should be done in
an external box separate to the power panel. Copper
conductors can then be run from the box to the chiller.
Caulk power and control wiring conduit
entering the power panel to assure moist
air from the building cannot enter the
panel.
POWER SUPPLY WIRING
• Units require only one 3-phase supply, plus earth.
• Connect the 3-phase supplies to the circuit breaker
located in the panel See Table 4 on page 52.
• Connect a suitably sized earth wire to the PE terminal in the panel.
115VAC CONTROL SUPPLY TRANSFORMER
A 3-wire high voltage to 115VAC supply transformer
is standard in the chiller. This transformer is mounted
in the cabinet and steps down the high voltage supply
to 115VAC to be used by the controls, VSD, Feed and
Drain Valve Controller, valves, solenoids, heaters, and
so on.
The high voltage for the transformer primary is taken
from the chiller input. Fusing is provided for the transformer.
Removing high voltage power to the chiller will remove the 115VAC supply voltage
to the control panel circuitry and the
evaporator heater mat. In sub-freezing
weather, this could cause serious damage
to the chiller due to evaporator freeze-up.
Do not remove power unless alternate
means are taken to ensure operation of
the control panel, evaporator heater mat,
and waterbox heaters.
CONTROL WIRING
All control wiring utilizing contact closures to the
control panel terminal block is nominal 115VAC and
must be run in shielded cable, with the shield grounded
at the panel end only, and run in water tight conduit.
Run shielded cable separately from mains cable to
avoid electrical noise pick-up. Use the control panel
cable entry to avoid the power cables.
Voltage free contacts connected to the panel must be
suitable for 115VAC 10 ma (gold contacts recommended). If the voltage free contacts form part of a relay or
contactor, the coil of the device must be suppressed using
a standard R/C suppressor. The above precautions must
be taken to avoid electrical noise, which could cause a
malfunction or damage to the unit and its controls.
46
JOHNSON CONTROLS
Page 47
FORM 201.28-NM1.1
ISSUE DATE: 1/31/2018
SECTION 4 - INSTALLATION
VOLTS FREE CONTACTS
Chilled Liquid Pump Starter
Terminals 23 and 24 on 1TB close to start the chilled
liquid pump. This contact can be used as a master start/
stop for the pump in conjunction with the daily start/
stop schedule. Cycle the pumps from the unit panel if
the unit will be operational or shut-down during subfreezing conditions. See "Evaporator Pump Control" on page 102 for more information on testing the
pumps.
Run Contact
Terminals 21 and 22 on 1TB close to indicate that a
system is running.
Alarm Contacts
Each system has a single voltage-free contact, which
will operate to signal an alarm condition whenever any
system locks out, or there is a power failure. To obtain
system alarm signal, connect the alarm circuit to volt
free Terminals 25 & 26 (Sys 1), Terminals 27 and 28
(Sys 2) of 1TB.
SYSTEM INPUTS
Flow Switch
A chilled liquid flow switch of suitable type MUST be
connected between Terminals 2 and 13 of 1TB to provide protection against loss of liquid flow, which will
cause evaporator freeze-up if the chiller is permitted
to run. The flow switch circuitry is a 115VAC circuit.
Contacts must be rated for low current (5mA). Gold
contacts should be used.
Remote Run / Stop
A Remote Run/Stop input is available for each systems.
These inputs require a dry contact to start and stop the
system. System 1 remote dry contacts are connected
between Terminals 2 and 15 of 1TB and System 2 dry
contacts are connected between Terminals 2 and 16 of
1TB. If remote start/stop is not utilized, a jumper must
be paced across the terminals to allow the system to
run. The remote run/stop circuitry is a 115VAC circuit.
Contacts must be rated for low current (5mA). Gold
contacts should be used.
Remote Print
Closure of suitable contacts connected to Terminals 2
and 14 of 1TB will cause a hard copy printout of Operating Data/Fault History to be made if an optional printer
is connected to the RS-232 port. The remote print circuitry is a 115VAC circuit. Contacts must be rated for
low current (5mA). Gold contacts should be used.
Optional Remote Setpoint Offset –
Temperature
A voltage signal connected to Terminals 17 and 18 of
1TB will provide a remote offset function of the chilled
liquid setpoint, if required.
Optional Remote Setpoint Offset – Current
A voltage signal connected to Terminals 19 and 20
of 1TB will provide a remote setting of current limit
setpoint, if required.
Optional Remote Setpoint Offset – Sound
Limiting
A voltage signal connected to Terminals 40 and 41 of
1TB will provide remote setting of sound limit setpoint,
if required.
4
JOHNSON CONTROLS
47
Page 48
SECTION 4 - INSTALLATION
POWER SUPPLY WIRING
FORM 201.28-NM1.1
ISSUE DATE: 1/31/2018
Single Point Wiring
Minimum Circuit Ampacity (MCA),
Minimum/Maximum Fuse Size and
Minimum/Maximum Circuit Breaker size
varies on chillers based upon model and
options ordered. Consult YorkWorks or
the chiller data plate for electrical data
The data shown in this table is applicable to selected typical configurations. Other configurations are
available through our configuration/selection software.
Please contact your nearest Johnson Controls Sales
Office for the chiller configuration that best matches
your specific needs.
TABLE 5 - PHYSICAL DATA - MICROCHANNEL COIL
UNIT FRAME15161718191920212121UNIT FRAME23242426272727272930
CONDENSER CODE3583580358CONDENSER CODE3583035853
EVAPORATOR CODEBBCAABCACCEVAPORATOR CODEBCCBDDEEEC
GENERAL UNIT DATAGENERAL UNIT DATA
Water Volume, gal (liters)58 (220)48 (182)71 (269)48 (182)58 (220)58 (220)82 (310)82 (310)71 (269)
Leaving Water Temperature
(Min/Max), °F (°C)
Maximum Water Side
Pressure, psig (barg)
Maximum Refrigerant Side
Pressure, psig (barg)
Evap Drain Connection,
inches (mm)
Minimum Chilled Water Flow
Rate, gpm (l/sec)
Maximum Chilled Water Flow
Rate, gpm (l/sec)
Inlet and Outlet Water
Connections, in
2
211/211
(96/96)
2.1/2.0
(8.0/7.7)
203.3
(5163)
88.3
(2242)
94.6
(2403)
250
(15.8)
950
(59.9)
666666666
229/191
(104/87)
2.4/2.0
(9.2/7.7)
247
(6274)
88.3
(2242)
94.6
(2403)
200
(12.6)
750
(47.3)
241/241
(109/109)
2.6/2.6
(9.9/9.9)
226
(5740)
88.3
(2242)
94.6
(2403)
300
(18.9)
1150
(72.6)
229/229
(104/104)
2.5/2.5
(9.5/9.5)
291.2
(7397)
88.3
(2242)
94.6
(2403)
200
(12.6)
750
(47.3)
2
273/235
(124/107)
2.7/2.6
(10.3/9.9)
291.2
(7397)
88.3
(2242)
94.6
(2403)
0/125
(-17.8/51.7)
40/60
(4.4/15.6)
150
(10.3)
235
(16.2)
3/4
250
(15.8)
950
(59.9)
273/273
(124/124)
2.7/2.7
(10.3/10.3)
335.2
(8514)
88.3
(2242)
94.6
(2403)
250
(15.8)
950
(59.9)
304/304
(138/138)
3.0/3.0
(11.4/11.4)
291.2
(7397)
88.3
(2242)
94.6
(2403)
300
(18.9)
1150
(72.6)
328/328
(149/149)
3.0/3.0
(11.4/11.4)
335.2
(8514)
88.3
(2242)
94.6
(2403)
300
(18.9)
1150
(72.6)
371/308
(168/140)
3.7/3.0
(14.0/11.4)
379.2
(9631)
88.3
(2242)
94.6
(2403)
300
(18.9)
1150
(72.6)
NOTES:
Shipping and operating weights shown are for base unit; selected options may add weight to unit. Contact your nearest Johnson Controls Sales
ofce for weight data.
1. R-513A is not an option.
2. For leaving liquid temperature below 40°F(4.4°C) or above 60°F (15.6°C), contact your nearest Johnson Controls Sales Ofce for application
requirements.
68
JOHNSON CONTROLS
Page 69
FORM 201.28-NM1.1
ISSUE DATE: 1/31/2018
SECTION 5 - TECHNICAL DATA
TABLE 6 - PHYSICAL DATA - ROUND TUBE COIL (CONT'D)
UNIT FRAME32333437414448495052
CONDENSER CODE3333333003
EVAPORATOR CODEECEFHGGKJJ
GENERAL UNIT DATA
Shipping and operating weights shown are for base unit; selected options may add weight to unit. Contact your nearest Johnson Controls Sales
ofce for weight data.
1. R-513A is not an option.
2. For leaving liquid temperature below 40°F(4.4°C) or above 60°F (15.6°C), contact your nearest Johnson Controls Sales Ofce for application
requirements.
JOHNSON CONTROLS
69
Page 70
SECTION 5 - TECHNICAL DATA
TABLE 7 - OPTIONAL ONE-PASS EVAPORATOR
ALL DIMENSIONS - INCHES (MM)
FORM 201.28-NM1.1
ISSUE DATE: 1/31/2018
YVAA
FRAME
153
165
178
183
195
198
200
213
215
218
A,BCD
COND.
20.8
(528)
20.8
(528)
20.8
(528)
19.8
(503)
19.8
(503)
21
(533)
20.8
(528)
19.8
(503)
20.8
(528)
21
(533)
6.8
(173)
29.2
(742)
34.9
(886)
17.7
(450)
61.5
(1562)
117.3
(2979)
1.7
(43)
61.7
(1567)
34.9
(886)
78.9
(2004)
34.5
(876)
56.1
(1425)
70
(1778)
56.8
(1443)
56.7
(1440)
56.1
(1425)
38.1
(968)
56.8
(1443)
70
(1778)
70
(1778)
E-NOZZLE
SIZE
8
8
8
6
6
8
8
6
8
8
WATER
VOLUME.
GALLONS
(LITERS)
58
(220)
58
(220)
71
(269)
48
(182)
48
(182)
58
(220)
71
(269)
48
(182)
71
(269)
71
(269)
MINIMUM
CHILLED
WATER FLOW
RATE
GPM (L/S)
500
(32)
500
(32)
590
(37)
400
(25)
400
(25)
500
(32)
590
(37)
400
(25)
590
(37)
590
(37)
MAXIMUM
CHILLED
WATER FLOW
RATE
GPM (L/S)
1970
(124)
1970
(124)
2190
(138)
1230
(77)
1230
(77)
1970
(124)
2190
(138)
1230
(77)
2190
(138)
2190
(138)
NOTE: Minimum Chilled Water Flow Rate is for full load selections; Variable Primary Flow ratings as low as 50% of the minimum are
permittted. Glycol limits are higher. Please contact your Johnson Controls Sales Ofce for ratings and further information.
70
JOHNSON CONTROLS
Page 71
FORM 201.28-NM1.1
ISSUE DATE: 1/31/2018
TABLE 7 - OPTIONAL ONE-PASS EVAPORATOR (CONT'D)
ALL DIMENSIONS - INCHES (MM)
SECTION 5 - TECHNICAL DATA
5
YVAA
FRAME
233
245
248
263
270
273
275
278
295
303
A,BCD
COND.
20.8
(528)
21
(533)
21
(533)
21
(533)
21
(533)
21
(533)
22.5
(572)
22.5
(572)
22.5
(572)
21
(533)
73.2
(1859)
92.9
(2360)
122.9
(3122)
117.1
(2974)
16.8
(427)
42.9
(1090)
44.7
(1135)
88.3
(2243)
88.6
(2250)
122.9
(3122)
56.1
(1425)
56.1
(1425)
70
(1778)
56.1
(1425)
51.9
(1318)
70
(1778)
71.8
(1824)
71.8
(1824)
71.8
(1824)
70
(1778)
E-NOZZLE
SIZE
8
8
8
8
8
8
10
10
10
8
WATER
VOLUME.
GALLONS
(LITERS)
58
(220)
71
(269)
71
(269)
58
(220)
82
(310)
82
(310)
113
(428)
113
(428)
113
(428)
71
(269)
MINIMUM
CHILLED
WATER FLOW
RATE
GPM (L/S)
500
(32)
590
(37)
590
(37)
500
(32)
590
(37)
590
(37)
810
(51)
810
(51)
810
(51)
590
(37)
MAXIMUM
CHILLED
WATER FLOW
RATE
GPM (L/S)
1970
(124)
2190
(138)
2190
(138)
1970
(124)
2190
(138)
2190
(138)
3200
(202)
3200
(202)
3200
(202)
2190
(138)
NOTE: Minimum Chilled Water Flow Rate is for full load selections; Variable Primary Flow ratings as low as 50% of the minimum are
permittted. Glycol limits are higher. Please contact your Johnson Controls Sales Ofce for ratings and further information.
JOHNSON CONTROLS
71
Page 72
SECTION 5 - TECHNICAL DATA
TABLE 7 - OPTIONAL ONE-PASS EVAPORATOR (CONT'D)
ALL DIMENSIONS - INCHES (MM)
FORM 201.28-NM1.1
ISSUE DATE: 1/31/2018
YVAA
FRAME
305
308
318
323
333
343
345
368
373
375
A,BCD
COND.
21
(533)
22.5
(572)
22.5
(572)
22.5
(572)
21
(533)
22.5
(572)
22.5
(572)
23.3
(592)
22.3
(566)
23.3
(592)
166.9
(4239)
132.2
(3358)
176.6
(4486)
88.6
(2250)
166.9
(4239)
132.6
(3368)
176.21
(4476)
208.6
(5298)
180.9
(4595)
164.3
(4173)
70
(1778)
71.8
(1824)
71.8
(1824)
71.8
(1824)
70
(1778)
71.8
(1824)
71.8
(1824)
83.5
(2121)
112.2
(2850)
83.4
(2118)
E-NOZZLE
SIZE
8
10
10
10
8
10
10
10
10
10
WATER
VOLUME.
GALLONS
(LITERS)
71
(269)
113
(428)
113
(428)
113
(428)
71
(269)
113
(428)
113
(428)
147
(556)
96
(363)
147
(556)
MINIMUM
CHILLED
WATER FLOW
RATE
GPM (L/S)
590
(37)
810
(51)
810
(51)
810
(51)
590
(37)
810
(51)
810
(51)
1090
(69)
840
(53)
1090
(69)
MAXIMUM
CHILLED
WATER FLOW
RATE
GPM (L/S)
2190
(138)
3200
(202)
3200
(202)
3200
(202)
2190
(138)
3200
(202)
3200
(202)
3420
(215)
3320
(209)
3420
(215)
NOTE: Minimum Chilled Water Flow Rate is for full load selections; Variable Primary Flow ratings as low as 50% of the minimum are
permitted. Glycol limits are higher. Please contact your Johnson Controls Sales Ofce for ratings and further information.
72
JOHNSON CONTROLS
Page 73
FORM 201.28-NM1.1
ISSUE DATE: 1/31/2018
TABLE 7 - OPTIONAL ONE-PASS EVAPORATOR (CONT'D)
ALL DIMENSIONS - INCHES (MM)
SECTION 5 - TECHNICAL DATA
5
YVAA
FRAME
398
413
425
428
443
475
483
490
500
523
A,BCD
COND.
23.3
(592)
22.5
(572)
22.5
(572)
23.3
(592)
22.3
(566)
23.3
(592)
22.3
(566)
22.5
(571)
23.3
(592)
23.3
(592)
252.5
(6414)
164.6
(4181)
252.6
(6416)
296.5
(7531)
287.1
(7292)
308.4
(7833)
331.2
(8412)
176.5
(4482)
176.2
(4475)
308.4
(7833)
83.5
(2121)
83.8
(2129)
83.8
(2129)
83.5
(2121)
94.2
(2393)
71.5
(1816)
94.2
(2393)
71.7
(1820)
71.5
(1816)
71.5
(1816)
E-NOZZLE
SIZE
10
10
10
10
10
10
10
10
10
10
WATER
VOLUME.
GALLONS
(LITERS)
147
(556)
130
(492)
130
(492)
147
(556)
96
(363)
147
(556)
96
(363)
130
(492)
147
(556)
147
(556)
MINIMUM
CHILLED
WATER FLOW
RATE
GPM (L/S)
1090
(69)
940
(59)
940
(59)
1090
(69)
840
(53)
1090
(69)
840
(53)
940
(59)
1090
(69)
1090
(69)
MAXIMUM
CHILLED
WATER FLOW
RATE
GPM (L/S)
3420
(215)
3420
(215)
3420
(215)
3420
(215)
3320
(209)
3420
(215)
3320
(209)
3420
(215)
3420
(215)
3420
(215)
NOTE: Minimum Chilled Water Flow Rate is for full load selections; Variable Primary Flow ratings as low as 50% of the minimum are
permitted. Glycol limits are higher. Please contact your Johnson Controls Sales Ofce for ratings and further information.
JOHNSON CONTROLS
73
Page 74
SECTION 5 - TECHNICAL DATA
TABLE 8 - STANDARD TWO-PASS, REAR INLET/OUTLET EVAPORATOR
ALL DIMENSIONS - INCHES (MM)
FORM 201.28-NM1.1
ISSUE DATE: 1/31/2018
YVAA
FRAME
153
165
178
183
195
198
200
213
215
218
ABCD
COND.
15.1
(384)
15.1
(384)
15.1
(384)
14.1
(358)
14.1
(358)
15.3
(389)
15.1
(384)
14.1
(358)
15.1
(384)
15.3
(389)
11.4
(290)
11.4
(290)
11.4
(290)
11.4
(290)
11.4
(290)
11.4
(290)
11.4
(290)
11.4
(290)
11.4
(290)
11.4
(290)
6.8
(173)
29.4
(747)
34.9
(886)
17.7
(450)
61.5
(1562)
117.3
(2979)
1.7
(43)
61.7
(1567)
29.9
(759)
78.9
(2004)
E-NOZZLE
SIZE
–6
–6
–6
–6
–6
–6
–6
–6
–6
–6
FG
34.5
(876)
56.1
(1425)
70
(1778)
56.8
(1443)
56.7
(1440)
56.1
(1425)
38.1
(968)
58.8
(1494)
70
(1778)
70.3
(1786)
–
–
–
–
–
–
–
–
–
–
WATER
VOLUME
GALLONS
(LITERS)
58
(220)
58
(220)
71
(269)
48
(182)
48
(182)
58
(220)
71
(269)
48
(182)
71
(269)
71
(269)
MINIMUM
CHILLED
WATER
FLOW RATE
GPM (L/S)
250
(16)
250
(16)
300
(19)
200
(13)
200
(13)
250
(16)
300
(19)
200
(13)
300
(19)
300
(19)
MAXIMUM
CHILLED
WATER
FLOW RATE
GPM (L/S)
980
(62)
980
(62)
1170
(74)
790
(50)
790
(50)
980
(62)
1170
(74)
790
(50)
1170
(74)
1170
(74)
NOTE: Minimum Chilled Water Flow Rate is for full load selections; Variable Primary Flow ratings as low as 50% of the minimum are
permitted. Glycol limits are higher. Please contact your Johnson Controls Sales Ofce for ratings and further information.
74
JOHNSON CONTROLS
Page 75
FORM 201.28-NM1.1
ISSUE DATE: 1/31/2018
TABLE 8 - STANDARD TWO-PASS, REAR INLET/OUTLET EVAPORATOR (CONT'D)
ALL DIMENSIONS - INCHES (MM)
SECTION 5 - TECHNICAL DATA
5
YVAA
FRAME
233
245
248
263
270
273
275
278
295
303
ABCD
COND.
15.1
(384)
15.3
(389)
15.3
(389)
15.3
(389)
15.3
(388)
15.3
(389)
15.5
(394)
15
(381)
15.5
(394)
15.3
(389)
11.4
(290)
11.4
(290)
11.4
(290)
11.4
(290)
11.4
(290)
11.4
(290)
14
(356)
14
(356)
14
(356)
11.4
(290)
73.3
(1862)
29.9
(759)
122.9
(3122)
117.3
(2979)
16.8
(427)
42.9
(1090)
44.3
(1125)
88.3
(2243)
88.3
(2243)
122.9
(3122)
E-NOZZLE
SIZE
–6
–6
–6
–6
–6
–6
–8
–8
–8
–6
FG
56.1
(1425)
56.1
(1425)
70
(1778)
56.1
(1425)
51.9
(1318)
70
(1778)
71.8
(1824)
71.8
(1824)
71.8
(1824)
70
(1778)
WATER
VOLUME
GALLONS
(LITERS)
–
–
–
–
–
–
–
–
–
–
58
(220)
71
(269)
71
(269)
58
(220)
82
(310)
82
(310)
113
(428)
113
(428)
113
(428)
71
(269)
MINIMUM
CHILLED
WATER
FLOW RATE
GPM (L/S)
250 (16)980 (62)
300 (19)1170 (74)
300 (19)1170 (74)
250 (16)980 (62)
300 (19)1170 (74)
300 (19)1170 (74)
410 (26)1600 (101)
410 (26)1600 (101)
410 (26)1600 (101)
300 (19)1170 (74)
MAXIMUM
CHILLED
WATER
FLOW RATE
GPM (L/S)
NOTE: Minimum Chilled Water Flow Rate is for full load selections; Variable Primary Flow ratings as low as 50% of the minimum are
permitted. Glycol limits are higher. Please contact your Johnson Controls Sales Ofce for ratings and further information.
JOHNSON CONTROLS
75
Page 76
SECTION 5 - TECHNICAL DATA
TABLE 8 - STANDARD TWO-PASS, REAR INLET/OUTLET EVAPORATOR (CONT'D)
ALL DIMENSIONS - INCHES (MM)
FORM 201.28-NM1.1
ISSUE DATE: 1/31/2018
YVAA
FRAME
305
308
318
323
333
343
345
368
373
375
ABCD
COND.
15.3
(389)
15.5
(394)
15.5
(394)
15.5
(394)
15.3
(389)
15.5
(394)
15.5
(394)
16.3
(414)
15.8
(401)
16.3
(414)
11.4
(290)
14
(356)
14
(356)
14
(356)
11.4
(290)
14
(356)
14
(356)
14
(356)
13
(330)
14
(356)
166.8
(4237)
132.2
(3358)
176.21
(4476)
88.6
(2250)
166.9
(4239)
132.2
(3358)
176.2
(4475)
208.5
(5296)
180.9
(4595)
164.4
(4176)
–6
–8
–8
–8
–6
–8
–8
–8
176.4
(4480)
–8
E- NOZZLE
SIZE
8
FG
70
(1778)
83.4
(2118)
83.4
(2118)
83.4
(2118)
83.4
(2118)
83.4
(2118)
83.4
(2118)
83.4
(2118)
112.2
(2850)
83.4
(2118)
–
–
–
–
–
–
–
–
107.7
(2735)
–
WATER
VOLUME
GALLONS
(LITERS)
71
(269)
113
(428)
113
(428)
113
(428)
71
(269)
113
(428)
113
(428)
147
(556)
96
(363)
147
(556)
MINIMUM
CHILLED
WATER
FLOW RATE
GPM (L/S)
MAXIMUM
CHILLED
WATER
FLOW
RATE GPM
(L/S)
300 (19)1170 (74)
410 (26)1600 (101)
410 (26)1600 (101)
410 (26)1600 (101)
300 (19)1170 (74)
410 (26)1600 (101)
410 (26)1600 (101)
550 (35)2160 (136)
420 (26)1660 (105)
550 (35)2160 (136)
NOTE: Minimum Chilled Water Flow Rate is for full load selections; Variable Primary Flow ratings as low as 50% of the minimum are
permitted. Glycol limits are higher. Please contact your Johnson Controls Sales Ofce for ratings and further information.
76
JOHNSON CONTROLS
Page 77
FORM 201.28-NM1.1
ISSUE DATE: 1/31/2018
TABLE 8 - STANDARD TWO-PASS, REAR INLET/OUTLET EVAPORATOR (CONT'D)
ALL DIMENSIONS - INCHES (MM)
SECTION 5 - TECHNICAL DATA
5
YVAA
FRAME
398
413
425
428
443
475
483
490
500
523
ABCD
COND.
16.3
(414)
15.5
(394)
15.5
(394)
16.3
(414)
15.8
(401)
16.3
(414)
15.8
(401)
15.5
(394)
16.3
(414)
16.3
(414)
14
(356)
14
(356)
14
(356)
14
(356)
13
(330)
14
(356)
13
(330)
14
(355)
14
(356)
14
(356)
252.5
(6414)
164.6
(4181)
252.6
(6416)
296.5
(7531)
287.1
(7292)
308.4
(7833)
331.2
(8412)
176.5
(4482)
176.2
(4475)
308.4
(7833)
–8
–8
–8
–8
282.5
(7177)
–8
326.6
(8296)
–8
–8
–8
E- NOZZLE
SIZE
8
8
FG
83.5
(2121)
83.8
(2129)
83.8
(2129)
83.5
(2121)
94.2
(2393)
71.5
(1816)
94.2
(2393)
71.7
(1820)
71.5
(1816)
71.5
(1816)
–
–
–
–
89.7
(2278)
–
89.7
(2278)
–
–
–
WATER
VOLUME
GALLONS
(LITERS)
147
(556)
130
(492)
130
(492)
147
(556)
96
(363)
147
(556)
96
(363)
130
(492)
147
(556)
147
(556)
MINIMUM
CHILLED
WATER
FLOW RATE
GPM (L/S)
550 (35)2160 (136)
470 (30)1870 (118)
470 (30)1870 (118)
550 (35)2160 (136)
420 (26)1660 (105)
550 (35)2160 (136)
420 (26)1660 (105)
470 (30)1870 (118)
550 (35)2160 (136)
550 (35)2160 (136)
MAXIMUM
CHILLED
WATER
FLOW
RATE GPM
(L/S)
NOTE: Minimum Chilled Water Flow Rate is for full load selections; Variable Primary Flow ratings as low as 50% of the minimum are
permitted. Glycol limits are higher. Please contact your Johnson Controls Sales Ofce for ratings and further information.
NOTE: Minimum Chilled Water Flow Rate is for full load selections; Variable Primary Flow ratings as low as 50% of the minimum are
permitted. Glycol limits are higher. Please contact your Johnson Controls Sales Ofce for ratings and further information.
JOHNSON CONTROLS
81
Page 82
SECTION 5 - TECHNICAL DATA
FORM 201.28-NM1.1
ISSUE DATE: 1/31/2018
The data below is applicable to select configurations.
Other configurations are available through our configuration/selection software.
94.6"
(2403 mm)
C
B
A" PIPE WATER OUTLET
CONTROL ENTRY
3.0" (76 mm) WIDE X
11.5" (292 mm) HIGH
120"
(305 mm)
VIEW A-A
A" PIPE WATER INLET
3.0"
(75 mm)
Please contact your nearest Johnson Controls Sales
Office for the chiller configuration that best matches
your specific needs.
BB
LD16178
88.3" (2242 mm)
4.0"
(102 mm)
1.5"
(38 mm)
VIEW B-B
POWER ENTRY
10" (254 mm) WIDE X
13" (330 mm) HIGH
VSD / CONTROL PANEL
FIGURE 17 - YVAA DIMENSIONS
60.0"
(1524 mm)
14.1"
(359 mm)
47.4"
(1204 mm)
82
JOHNSON CONTROLS
Page 83
FORM 201.28-NM1.1
ISSUE DATE: 10/12/2017
SECTION 5 - TECHNICAL DATA
THIS PAGE INTENTIONALLY LEFT BLANK
JOHNSON CONTROLS
83
Page 84
SECTION 5 - TECHNICAL DATA
TABLE 10 - ISOLATOR SELECTION AND MOUNTING LOCATIONS
YVAA CONFIGURATION
FRAME CONDEVAP
0153B
0165B
0178C
0183A
0195A
0198B
0200C
0213A
0215C
0218C
0233B
0245C
0248C
DESCRIPTION12345678
Isolator X-Dimension
10
(263)
73
(1852)
(3662)
Isolator Y-Dimension1 (34)
Isolator X-Dimension
10
(263)
77
(1943)
(3000)
Isolator Y-Dimension1 (34)
Isolator X-Dimension
10
(263)
81
(2057)
(3779)
Isolator Y-Dimension1 (34)
Isolator X-Dimension
10
(263)
76
(1943)
(3152)
Isolator Y-Dimension1 (34)
Isolator X-Dimension
10
(259)
76
(1939)
(2997)
Isolator Y-Dimension1 (34)
Isolator X-Dimension
10
(263)
76
(1943)
(3000)
Isolator Y-Dimension1 (34)
Isolator X-Dimension
10
(263)
76
(1943)
(3000)
Isolator Y-Dimension1 (34)
Isolator X-Dimension
10
(263)
81
(2057)
(3779)
Isolator Y-Dimension1 (34)
Isolator X-Dimension
10
(263)
81
(2057)
(3779)
Isolator Y-Dimension1 (34)
Isolator X-Dimension
10
(263)
81
(2057)
(3779)
Isolator Y-Dimension1 (34)
Isolator X-Dimension
10
(263)
76
(1943)
(2999)
Isolator Y-Dimension1 (34)
Isolator X-Dimension
10
(263)
76
(1943)
(3260)
Isolator Y-Dimension1 (34)
Isolator X-Dimension
10
(263)
81
(2057)
(3638)
Isolator Y-Dimension1 (34)
144
118
149
124
118
118
118
149
149
149
118
128
143
193
(4900)
157
(3985)
187
(4756)
163
(4137)
157
(3982)
157
(3985)
157
(3985)
187
(4756)
187
(4756)
187
(4756)
157
(3984)
173
(4391)
187
(4748)
220
(5589)
251
(6368)
210
(5323)
208
(5295)
209
(5299)
209
(5299)
251
(6368)
251
(6368)
235
(5968)
209
(5298)
220
(5579)
245
(6232)
FORM 201.28-NM1.1
ISSUE DATE: 1/31/2018
LD18587
281
(7132)
308
(7823)
281
(7136)
301
(7653)
281
(7135)
301
(7654)
339
(8609)
NOTES:
1. Contact your nearest Johnson Controls Sales Ofce for weight data.
2. All isolator mounting holes are 19mm.
3. Dimensions are in inches (mm).
84
JOHNSON CONTROLS
Page 85
FORM 201.28-NM1.1
ISSUE DATE: 1/31/2018
TABLE 10 - ISOLATOR SELECTION AND MOUNTING LOCATIONS (CONT'D)
YVAA CONFIGURATION
FRAME CONDEVAP
0153B
0165B
0178C
0183A
0195A
0198B
0200C
0213A
0215C
0218C
0233B
0245C
0248C
DESCRIPTION910111213141516
Isolator X-Dimension
10
(263)
73
(1852)
144
(3662)
193
(4900)
Isolator Y-Dimension87 (2206)
Isolator X-Dimension
10
(263)
77
(1943)
118
(3000)
157
(3985)
Isolator Y-Dimension87 (2206)
Isolator X-Dimension
10
(263)
81
(2057)
149
(3779)
187
(4756)
Isolator Y-Dimension87 (2206)
Isolator X-Dimension
10
(263)
76
(1943)
124
(3152)
163
(4137)
Isolator Y-Dimension87 (2206)
Isolator X-Dimension
10
(259)
76
(1939)
118
(2997)
157
(3982)
Isolator Y-Dimension87 (2206)
Isolator X-Dimension
10
(263)
76
(1943)
118
(3000)
157
(3985)
Isolator Y-Dimension87 (2206)
Isolator X-Dimension
10
(263)
76
(1943)
118
(3000)
157
(3985)
Isolator Y-Dimension87 (2206)
Isolator X-Dimension
10
(263)
81
(2057)
149
(3779)
187
(4756)
Isolator Y-Dimension87 (2206)
Isolator X-Dimension
10
(263)
81
(2057)
149
(3779)
187
(4756)
Isolator Y-Dimension87 (2206)
Isolator X-Dimension
10
(263)
81
(2057)
149
(3779)
187
(4756)
Isolator Y-Dimension87 (2206)
Isolator X-Dimension
10
(263)
76
(1943)
118
(2999)
157
(3984)
Isolator Y-Dimension87 (2206)
Isolator X-Dimension
10
(263)
76
(1943)
128
(3260)
173
(4391)
Isolator Y-Dimension87 (2206)
Isolator X-Dimension
10
(263)
81
(2057)
143
(3638)
187
(4748)
Isolator Y-Dimension87 (2206)
SECTION 5 - TECHNICAL DATA
LD18587
220
(5589)
251
(6368)
210
(5323)
208
(5295)
209
(5299)
209
(5299)
281
(7132)
308
(7823)
281
(7136)
251
(6368)
251
(6368)
235
(5968)
209
(5298)
220
(5579)
245
(6232)
301
(7653)
281
(7135)
301
(7654)
339
(8609)
5
NOTES:
1. Contact your nearest Johnson Controls Sales Ofce for weight data.
2. All isolator mounting holes are 19mm.
3. Dimensions are in inches (mm).
JOHNSON CONTROLS
85
Page 86
SECTION 5 - TECHNICAL DATA
TABLE 10 - ISOLATOR SELECTION AND MOUNTING LOCATIONS (CONT'D)
FORM 201.28-NM1.1
ISSUE DATE: 1/31/2018
YVAA CONFIGURATION
FRAME CONDEVAP
0263B
0270D
0273D
0275E
0278E
0295E
0303C
0305C
0308E
0318E
0323E
0333C
0343E
0345E
0368J
DESCRIPTION12345678
Isolator X-Dimension
10
(263)
77
(1943)
118
(2999)
157
(3984)
209
(5298)
308
(7823)
Isolator Y-Dimension1 (34)
Isolator X-Dimension
10
(263)
81
(2057)
149
(3779)
187
(4756)
264
(6709)
Isolator Y-Dimension1 (34)
Isolator X-Dimension
10
(263)
81
(2057)
161
(4084)
201
(5105)
301
(7654)
Isolator Y-Dimension1 (34)
Isolator X-Dimension
10
(263)
81
(2057)
161
(4084)
201
(5105)
301
(7654)
Isolator Y-Dimension1 (34)
Isolator X-Dimension
10
(263)
81
(2057)
161
(4095)
201
(5105)
298
(7582)
339
(8609)
Isolator Y-Dimension1 (34)
Isolator X-Dimension
10
(263)
81
(2057)
161
(4095)
201
(5105)
296
(7512)
339
(8609)
Isolator Y-Dimension1 (34)
Isolator X-Dimension
10
(263)
81
(2057)
143
(3638)
187
(4748)
245
(6232)
339
(8608)
Isolator Y-Dimension1 (34)
Isolator X-Dimension
10
(260)
81
(2057)
144
(3663)
187
(4755)
277
(7047)
383
(9726)
Isolator Y-Dimension1 (34)
Isolator X-Dimension
10
(260)
81
(2054)
161
(4081)
201
(5102)
298
(7579)
383
(9723)
Isolator Y-Dimension1 (34)
Isolator X-Dimension
10
(263)
81
(2057)
161
(4084)
201
(5105)
298
(7582)
427
(10843)
Isolator Y-Dimension1 (34)
Isolator X-Dimension
10
(263)
81
(2057)
161
(4084)
201
(5105)
298
(7582)
339
(8609)
Isolator Y-Dimension1 (34)
Isolator X-Dimension
10
(263)
81
(2057)
143
(3636)
188
(4781)
245
(6232)
383
(9726)
Isolator Y-Dimension1 (34)
Isolator X-Dimension
10
(263)
81
(2057)
161
(4084)
201
(5105)
298
(7582)
383
(9726)
Isolator Y-Dimension1 (34)
Isolator X-Dimension
10
(263)
81
(2057)
161
(4084)
201
(5105)
298
(7582)
427
(10843)
Isolator Y-Dimension1 (34)
Isolator X-Dimension
10
(263)
81
(2057)
145
(3680)
205
(5219)
284
(7218)
383
(9725)
439
(11157)
Isolator Y-Dimension1 (34)
495
(12577)
NOTES:
1. Contact your nearest Johnson Controls Sales Ofce for weight data.
2. All isolator mounting holes are 19mm.
3. Dimensions are in inches (mm).
86
JOHNSON CONTROLS
Page 87
FORM 201.28-NM1.1
ISSUE DATE: 1/31/2018
TABLE 10 - ISOLATOR SELECTION AND MOUNTING LOCATIONS (CONT'D)
SECTION 5 - TECHNICAL DATA
YVAA CONFIGURATION
FRAME CONDEVAP
0263B
0270D
0273D
0275E
0278E
0295E
0303C
0305C
0308E
0318E
0323E
0333C
0343E
0345E
0368J
DESCRIPTION910111213141516
Isolator X-Dimension
Isolator Y-Dimension87 (2206)
Isolator X-Dimension
Isolator Y-Dimension1 (34)
Isolator X-Dimension
Isolator Y-Dimension87 (2206)
Isolator X-Dimension
Isolator Y-Dimension87 (2206)
Isolator X-Dimension
Isolator Y-Dimension87 (2206)
Isolator X-Dimension
Isolator Y-Dimension87 (2206)
Isolator X-Dimension
Isolator Y-Dimension87 (2206)
Isolator X-Dimension
Isolator Y-Dimension87 (2206)
Isolator X-Dimension
Isolator Y-Dimension87 (2206)
Isolator X-Dimension
Isolator Y-Dimension87 (2206)
Isolator X-Dimension
Isolator Y-Dimension87 (2206)
Isolator X-Dimension
Isolator Y-Dimension87 (2206)
Isolator X-Dimension
Isolator Y-Dimension87 (2206)
Isolator X-Dimension
Isolator Y-Dimension87 (2206)
Isolator X-Dimension
Isolator Y-Dimension87 (2206)
10
(263)
10
(263)
10
(263)
10
(263)
10
(263)
10
(263)
10
(263)
10
(260)
10
(260)
10
(263)
10
(263)
10
(263)
10
(263)
10
(263)
10
(263)
77
(1943)
81
(2057)
81
(2057)
81
(2057)
81
(2057)
81
(2057)
81
(2057)
81
(2057)
81
(2054)
81
(2057)
81
(2057)
81
(2057)
81
(2057)
81
(2057)
81
(2057)
118
(2999)
149
(3779)
161
(4084)
161
(4084)
161
(4095)
161
(4095)
143
(3638)
144
(3663)
161
(4081)
161
(4084)
161
(4084)
143
(3636)
161
(4084)
161
(4084)
145
(3680)
157
(3984)
187
(4756)
201
(5105)
201
(5105)
201
(5105)
201
(5105)
187
(4748)
187
(4755)
201
(5102)
201
(5105)
201
(5105)
188
(4781)
201
(5105)
201
(5105)
205
(5219)
209
(5298)
264
(6709)
301
(7654)
301
(7654)
298
(7582)
296
(7512)
245
(6232)
277
(7047)
298
(7579)
298
(7582)
298
(7582)
245
(6232)
298
(7582)
298
(7582)
284
(7218)
308
(7823)
339
(8609)
339
(8609)
339
(8608)
383
(9726)
383
(9723)
427
(10843)
339
(8609)
383
(9726)
383
(9726)
427
(10843)
383
(9725)
439
(11157)
5
495
(12577)
NOTES:
1. Contact your nearest Johnson Controls Sales Ofce for weight data.
2. All isolator mounting holes are 19mm.
3. Dimensions are in inches (mm).
JOHNSON CONTROLS
87
Page 88
SECTION 5 - TECHNICAL DATA
TABLE 10 - ISOLATOR SELECTION AND MOUNTING LOCATIONS (CONT'D)
FORM 201.28-NM1.1
ISSUE DATE: 1/31/2018
YVAA CONFIGURATION
FRAME CONDEVAP
0373F
0375J
0398J
0413H
0425H
0428J
0443G
DESCRIPTION12345678
Isolator X-Dimension
Isolator Y-Dimension
Isolator X-Dimension
Isolator Y-Dimension
Isolator X-Dimension
Isolator Y-Dimension
Isolator X-Dimension
Isolator Y-Dimension
Isolator X-Dimension
Isolator Y-Dimension
Isolator X-Dimension
Isolator Y-Dimension
Isolator X-Dimension
Isolator Y-Dimension
10
(263)
10
(263)
10
(263)
10
(263)
10
(254)
10
(260)
10
(263)
81
(2057)
81
(2057)
81
(2057)
81
(2057)
81
(2057)
81
(2054)
81
(2057)
145
(3680)
145
(3680)
145
(3680)
145
(3680)
145
(3680)
145
(3677)
154
(3907)
206
(5219)
206
(5219)
206
(5219)
205
(5219)
206
(5219)
205
(5216)
206
(5219)
(7218)
1 (34)
(7218)
1 (34)
(7218)
1 (34)
(7218)
1 (34)
(7218)
1 (34)
(7215)
1 (34)
(7218)
1 (34)
284
284
284
284
284
284
284
427
(10842)
427
(10842)
427
(10842)
427
(10843)
427
(10842)
427
(10839)
427
(10842)
483
(12274)
483
(12274)
505
(12817)
483
(12274)
539
(13694)
539
(13694)
562
(14262)
539
(13694)
10
(263)
0475J
Isolator X-Dimension
Isolator Y-Dimension
10
(263)
0483G
Isolator X-Dimension
Isolator Y-Dimension
10
(263)
0490K
Isolator X-Dimension
Isolator Y-Dimension
10
(263)
0500J
Isolator X-Dimension
Isolator Y-Dimension1 (34)
10
(263)
0523J
Isolator X-Dimension
Isolator Y-Dimension1 (34)
NOTES:
1. Contact your nearest Johnson Controls Sales Ofce for weight data.
2. All isolator mounting holes are 19mm.
3. Dimensions are in inches (mm).
81
(2057)
81
(2057)
81
(2057)
81
(2057)
81
(2057)
154
(3907)
154
(3907)
154
(3907)
154
(2908)
154
(3907)
206
(5219)
206
(5219)
205
(5219)
205
(5219)
206
(5219)
(7218)
1 (34)
(7218)
1 (34)
(7218)
1 (34)
(7218)
(7218)
284
284
284
284
284
427
(10842)
427
(10842)
427
(10842)
427
(10843)
427
(10842)
505
(12820)
505
(12820)
505
(12820)
562
(14265)
562
(14265)
562
(14265)
88
JOHNSON CONTROLS
Page 89
FORM 201.28-NM1.1
ISSUE DATE: 1/31/2018
TABLE 10 - ISOLATOR SELECTION AND MOUNTING LOCATIONS (CONT'D)
SECTION 5 - TECHNICAL DATA
YVAA CONFIGURATION
FRAME CONDEVAP
0373F
0375J
0398J
0413H
0425H
0428J
0443G
0475J
0483G
0490K
0500J
0523J
DESCRIPTION910111213141516
Isolator X-Dimension
Isolator Y-Dimension87 (2206)
Isolator X-Dimension
Isolator Y-Dimension87 (2206)
Isolator X-Dimension
Isolator Y-Dimension87 (2206)
Isolator X-Dimension
Isolator Y-Dimension87 (2206)
Isolator X-Dimension
Isolator Y-Dimension87 (2206)
Isolator X-Dimension
Isolator Y-Dimension87 (2206)
Isolator X-Dimension
Isolator Y-Dimension87 (2206)
Isolator X-Dimension
Isolator Y-Dimension87 (2206)
Isolator X-Dimension
Isolator Y-Dimension87 (2206)
Isolator X-Dimension
Isolator Y-Dimension87 (2206)
Isolator X-Dimension
Isolator Y-Dimension87 (2206)
Isolator X-Dimension
Isolator Y-Dimension87 (2206)
10
(263)
10
(263)
10
(263)
10
(263)
10
(254)
10
(260)
10
(263)
10
(263)
10
(263)
10
(263)
10
(263)
10
(263)
81
(2057)
81
(2057)
81
(2057)
81
(2057)
81
(2057)
81
(2054)
81
(2057)
81
(2057)
81
(2057)
81
(2057)
81
(2057)
81
(2057)
145
(3680)
145
(3680)
145
(3680)
145
(3680)
145
(3680)
145
(3677)
154
(3907)
154
(3907)
154
(3907)
154
(3907)
154
(2908)
154
(3907)
206
(5219)
206
(5219)
206
(5219)
205
(5219)
206
(5219)
205
(5216)
206
(5219)
206
(5219)
206
(5219)
205
(5219)
205
(5219)
206
(5219)
284
(7218)
284
(7218)
284
(7218)
284
(7218)
284
(7218)
284
(7215)
284
(7218)
284
(7218)
284
(7218)
284
(7218)
284
(7218)
284
(7218)
427
(10842)
427
(10842)
427
(10842)
427
(10843)
427
(10842)
427
(10839)
427
(10842)
427
(10842)
427
(10842)
427
(10842)
427
(10843)
427
(10842)
483
(12274)
483
(12274)
505
(12817)
483
(12274)
505
(12820)
505
(12820)
505
(12820)
539
(13694)
5
539
(13694)
562
(14262)
539
(13694)
562
(14265)
562
(14265)
562
(14265)
NOTES:
1. Contact your nearest Johnson Controls Sales Ofce for weight data.
2. All isolator mounting holes are 19mm.
3. Dimensions are in inches (mm).
JOHNSON CONTROLS
89
Page 90
SECTION 5 - TECHNICAL DATA
SECTIOND-D
ELASTOMERIC ISOLATOR INSTALLATION
(B)
FORM 201.28-NM1.1
ISSUE DATE: 1/31/2018
TOP BOLT
TOP WASHER
D
C
L
D
Read the following instructions before beginning
installation.
1. Isolators are shipped fully assembled and are to be
positioned in accordance with the submittal drawings or as otherwise recommended.
2. Set isolators on oor, housekeeping pad or subbase, ensuring that all isolators lines match the
equipment mounting holes. The VMC group
recommends that the isolator base (A) be installed
on a level surface. Shim or grout as required,
leveling all isolator bases to the same elevation
(0.03125 of an inch maximum difference can be
tolerated).
(C)
(B)
C
L
SECTION D-D
(A)
LD13762C
3. Bolt or anchor all isolators to supporting structure
utilizing base thru holes (B).
4. Remove top bolt and top washer. Place equipment on top of isolators so that mounting holes in
equipment or base line up with threaded hole (C).
5. Reinstall top bolt and washer and tighten down.
MODEL NUMBERISOLATOR COLORWEIGHT RANGE (LBS)WEIGHT RANGE (KGS)
RD-3-CHARCOAL-WRCHARCOALUp thru 825UP TO 374
RD-4-BRICK RED-WRBRICK RED826 thru 1688375 - 766
RD-4-CHARCOAL-WRCHARCOAL1689 thru 4000767 - 1814
JOHNSON CONTROLS
91
Page 92
SECTION 5 - TECHNICAL DATA
FORM 201.28-NM1.1
ISSUE DATE: 1/31/2018
ONE INCH DEFLECTION ISOLATOR INSTALLATION
UPPER
HOUSING
(D)
LOWER
HOUSING
NON-SKID
ELASTOMERIC
PA D
POSITIONING
PIN (H)
0.25” min - 0.5” max
Read the following instructions before beginning
installation.
1. Isolators are shipped fully assembled and are to be
positioned in accordance with the submittal drawings or as otherwise recommended.
EQUIPMENT
BASE
(C)
(C)
(B)
4. Place equipment on top of isolators making sure
that mounting holes of the equipment line up with
isolator positioning pin (“H”).
5. Equipment or machine is at its full operating
weight.
2. Set isolators on oor, housekeeping pad or subbase, ensuring that all isolators centerlines match
the equipment mounting holes. The VMC group
recommends that the isolator base (“B”) be installed on a level surface. Shim or grout as required, leveling all isolator bases to the same
elevation (0.25-inch maximum difference can be
tolerated).
3. Bolt or anchor all isolators to supporting structure
utilizing base slotted holes (“C”).
6. Adjust each isolator in sequence by turning spring
adjusting bolt (“D”) one full counterclockwise
turn at a time. Repeat this procedure on all isolators, one at a time.
7. Continue adjusting each isolator until a minimum
of 0.25” clearance is achieved between the lower
housing and upper housing. See illustration above.
8. Fine adjust isolators to level equipment.
92
JOHNSON CONTROLS
Page 93
FORM 201.28-NM1.1
ISSUE DATE: 1/31/2018
SECTION 5 - TECHNICAL DATA
ONE INCH DEFLECTION SPRING ISOLATOR SPECIFICATIONS
1. Use either all CP's or all CP2's at all locations on a unit.
2. Installation requires bolting or anchoring mount to support structure with a 2 x 0.625" diameter bolts or 2 x 0.5" diameter concrete anchors.
3. All springs are designed for 50% over-travel.
JOHNSON CONTROLS
93
Page 94
SECTION 5 - TECHNICAL DATA
TWO INCH DEFLECTION ISOLATOR INSTALLATION AND ADJUSTMENT
FORM 201.28-NM1.1
ISSUE DATE: 1/31/2018
("A")
("E")
("G")
C
L
("E")
Read the following instructions before beginning
installation.
1. Isolators are shipped fully assembled and are to be
positioned in accordance with the submittal drawings or as otherwise recommended.
2. Set isolators on oor, housekeeping pad, or sub-
base, ensuring that all isolator centerlines match
the equipment mounting holes. The VMC group
recommends that the isolator base plates (“B”)
be installed on a level surface. Shim or grout as
required, levelling all isolator base plates to the
same elevation (0.25 of an inch maximum difference can be tolerated).
3. Bolt or anchor all isolators to supporting structure
utilizing base plate through holes (“C”) or weld
base plate to supporting structure with 0.375" llet weld 2” long @ 4” on center around entire base
plate or as engineered for specic load and or eld
conditions.
4. Isolators are shipped to the job site with (2) removable spacer shims (“E”) between the top plate
and the housing. These shims must be in place
when the equipment is positioned over the isolators.
5. With all shims (“E”) in place, position equipment
on top of plate (“A”) of isolator.
GROMMET
1/4 - 3/8 GAP
WASHER
("F")
("C")
("B")
("A")
("F")
("C")
C
L
EQUIPMENT
("E")
6. Bolt equipment securely to top plate of isolator using a minimum of 2 x 0.625" UNC A325 GRADE
5 SAE bolts or weld equipment or bracket to the
top plate (“A”) of isolator with a minimum 0.375"
llet welds 2” long @ 3” O.C. for a minimum total weld of 10”. (All sides of equipment or bracket
resting on top plate (“A”) must be welded).
7. The adjustment process can only begin after the
equipment or machine is at its full operating
weight.
8. Back off each of the 4 limit stop lock nuts (“F”) on
the isolators 0.5”.
9. Adjust each isolator in sequence by turning spring
adjusting nuts (“G”) one full clockwise turn at a
time. Repeat this procedure on all isolators, one
at a time. Check the limit stop lock nuts (“F”)
periodically to ensure that clearance between the
washer and rubber grommet is maintained. Stop
adjustment of isolator only when the top plate
(“A”) has risen just above the shim (“E”).
10. Remove all spacer shims (“E”).
11. Fine adjust isolators to level equipment.
12. Adjust all limit stop lock nuts (“F”) per isolator,
maintaining 0.25-to 0.375-inch gap. The limit
stop nuts must be kept at this gap to ensure uniform bolt loading during uplift (as the case when
equipment is drained).
94
JOHNSON CONTROLS
Page 95
FORM 201.28-NM1.1
ISSUE DATE: 1/31/2018
TWO INCH DEFLECTION, RESTRAINED SPRING ISOLATOR SPECIFICATIONS
SECTION 5 - TECHNICAL DATA
Y2RSI-xx-xxx
12-1/4"
1-1/8"
2-3/4"
12"
5/8-11UNC
TYP. (4)
3-1/2"
1/2" LIMIT
STOP &
NUT
5"
8-3/8"
OPER.
HEIGHT
3/8"
3/4"
7/8"
3/8" GAP
Ø3/4"
TYP.(4)
5/8"
5"
2-3/4"
14"
MODEL NUMBERWEIGHT RANGE (LBS)WEIGHT RANGE (KGS)YORK P/N
1. All dimensions are in inches, interpret as per ANSI Y14.
2. Equipment must be bolted or welded to the top plate to meet allowable seismic ratings.
3. All springs are designed for 50% overload capacity with exception of the 029-25336-013 and 029-25336-014.
4. Consult JCI for concrete installation.
JOHNSON CONTROLS
95
Page 96
FORM 201.28-NM1.1
ISSUE DATE: 10/12/2017
THIS PAGE INTENTIONALLY LEFT BLANK
96
JOHNSON CONTROLS
Page 97
FORM 201.28-NM1.1
ISSUE DATE: 1/31/2018
SECTION 6 - COMMISSIONING
PREPARATION
Commissioning of this unit should only
be carried out by Johnson Controls
Authorized personnel.
Commissioning personnel should be thoroughly familiar with the information contained in this document
before starting the unit.
The following basic checks should be made with the
customer power to the unit switched OFF.
Proper electrical lock out and tag out
procedures must be followed.
Inspection
Correct System Refrigerant Charge
The charge on a system should always be checked
when operating for several minutes at full speed with
the system stable. Stable conditions are defined as
operation without fan cycling, economizer cycling,
VI solenoid cycling, or any other system transient
conditions. Ideal refrigerant charge will be reached
when the refrigerant level in the evaporator is near the
middle of the evaporator sight glass.
Refrigerant should not be added or
removed unless the level is at the bottom
or the top of the glass. It is not necessary to
weigh charge unless the entire charge has
been lost. The ease of charging is possible
since the microchannel coils hold only a
small amount of refrigerant charge. A
charging valve is located between the xed
orice and the evaporator for adjusting
charge. Charge should be added as liquid
with the pump ON and liquid owing
through the evaporator.
6
Inspect unit for installation damage. If found, take action and/or repair as appropriate.
Refrigerant Charge
Packaged units are normally shipped as standard
with a full refrigerant operating charge. Check that
refrigerant pressure is present in both systems and
that no leaks are apparent. If no pressure is present, a
leak test must be undertaken, the leak(s) located and
repaired.
Do not evacuate or liquid charge with static water
in the evaporator. Turn the pump on. Take care to
liquid charge slowly to avoid excessive thermal stress
at the charging point and to assure the refrigerant
temperature in the evaporator does not go below the
freezing point with liquid refrigerant in the evaporator. Once the vacuum is broken, charge into the
evaporator or flash tank with the Condenser Drain
Valve (Flash Tank Feed) open and the chilled liquid
pump ON to the full operating charge, as detailed in
SECTION 5 - TECHNICAL DATA.
Service and Oil Line Valves
Open each compressor oil, economizer, and discharge
ball or service valves. If valves are of the back-seat
type, open them fully (counterclockwise) then close
one turn of the stem to ensure operating pressure is fed
to pressure transducers.
Compressor Oil
To add oil to a circuit - connect a YORK hand oil pump
(Part No. 470-10654-000) to the 1/4" (6.35 mm) oil
charging valve on the oil separator piping with a length
of clean hose or copper line, but do not tighten the
flare nut. Using clean oil of the correct type (“L” oil),
pump oil until all air has been purged from the hose
then tighten the nut. Stroke the oil pump to add oil to
the oil system. While the compressor is running at full
speed, the oil level should be visible in the sight glass
of the oil separator. Approximately 2 to 3.1 gallons
(7.5 to 11.6 liters) are present in each refrigerant
system.
Avoid levels in either oil separator that are above the
middle of the top sight glass. This may cause excessive
oil carryover in the system.
JOHNSON CONTROLS
97
Page 98
SECTION 6 - COMMISSIONING
FORM 201.28-NM1.1
ISSUE DATE: 1/31/2018
High oil concentration in the system may cause
nuisance trips resulting from incorrect readings on the
level sensor and temperature sensors. Temperature
sensor errors may result in poor liquid control which
will result in liquid overfeed and subsequently
damage the compressor. High oil carryover may also cause
liquid to be returned to the compressor, which can
damage the compressor.
Fans
Check that all fans are free to rotate and are not damaged. Ensure blades are at the same height when
rotated. Ensure fan guards are securely fixed.
Isolation / Protection
Verify all sources of electrical supply to the unit are
taken from a single point of isolation. Check that
the maximum recommended fuse sizes given in
SECTION 5 - TECHNICAL DATA has not been
exceeded.
Control Panel
Check the panel to see that it is free of foreign materials
(wire, metal chips, and so on) and clean out if required.
Power Connections
Check that the customer power cables are connected correctly to the terminal blocks or optional circuit breaker.
Ensure that connections of power cables within the panels to the circuit breaker or terminal blocks are tight.
Grounding
Verify that the unit’s protective ground terminal(s)
are properly connected to a suitable grounding point.
Ensure that all unit internal ground connections are
tight.
Water System
See Unit Maintenance and Shutdown in
Sub-freezing Conditions on Page 100. Before placing
the unit back in service, valves should be opened and power
must be switched on (if power is removed for more than
8 hours) for at least 8 hours (24 hours if ambient
temperature is below 86°F [30°C]) before the unit is
restarted.
Flow Switch
Verify a chilled water flow switch is correctly fitted
in the customer’s piping on the evaporator outlet, and
wired into the control panel correctly using shielded
cable.
There should be a straight run of at least five pipe
diameters on either side of the flow switch. The flow
switch should be connected to Terminals 2 and 13 in the
panel.
Temperature Sensor(s)
Ensure that the leaving liquid temperature
sensor is coated with heat conductive compound
(Part No. 013-00890-000) and is inserted to the bottom
of the water outlet sensor well in the evaporator. This
sensor is part of the pump control freeze protection
operation. It provides some freeze protection and must
always be fully inserted in the water outlet sensor well.
Programmed Options
Verify that the options factory-programmed into the
Micro Panel are in accordance with the customer’s
order requirements by pressing the OPTIONS key on
the keypad and reading the settings from the display.
Programmed Settings
Ensure the system cutout and operational settings
are in accordance with the operating requirements by
pressing the PROGRAM key.
Verify the chilled liquid system has been installed correctly, and has been commissioned with the correct
direction of water flow through the evaporator. The inlet
should be at the bottom connection on a two pass evaporator. Purge air from the top of the evaporator using the
plugged air vent mounted on the top of the evaporator
body.
Flow rates and pressure drops must be within the limits
given in SECTION 5 - TECHNICAL DATA. Operation
outside of these limits is undesirable and could cause
damage. If main power must be switched OFF for
maintenance or shutdown, precautions must be taken.
98
Date and Time
Program the date and time by first ensuring that the CLK
jumper JP2 on the Chiller Control Board is in the ON
position. Then press the DATE/TIME key and set the
date and time (see "Date/Time and Schedule Keys" on page 153).
Start/Stop Schedule
Program the daily and holiday start/stop by pressing
the SCHEDULE key (see "Date/Time and Schedule Keys" on page 153).
JOHNSON CONTROLS
Page 99
FORM 201.28-NM1.1
ISSUE DATE: 1/31/2018
SECTION 6 - COMMISSIONING
Setpoint and Remote Offset
Set the required leaving chilled liquid temperature
setpoint and Control Range under the SETPOINTS key.
The chilled liquid temperature control settings need to
be set according to the required operating conditions.
If remote temperature reset (offset) is to be used, the
maximum reset required must be programmed by
pressing the SETPOINTS key (see "Setpoints Key" on page 145).
FIRST TIME START UP
During the commissioning period there
should be sufcient heat load to run the
unit under stable full load operation to
enable the unit controls, and system operation to be set up correctly, and a commissioning log taken.
Interlocks
Verify that liquid is flowing through the evaporator
and that heat load is present. Ensure that any remote
run interlocks are in the run position and that the Daily
Schedule requires the unit to run or is overridden.
Unit Switch
Place the UNIT switch on the keypad to the ON position.
Startup
Press the SYSTEM SWITCHES key and place the
system switch for System 1 to the ON position. There
may be a few seconds delay before the first compressor starts because of the anti-recycle timer). Be ready
when each compressor starts, to switch the UNIT
switch OFF immediately, if any unusual noises or
other adverse conditions develop.
When a compressor is running, the controller monitors
oil pressure, motor current, and various other system
parameters such as discharge pressure, chilled liquid
temperature, and so on. Should any problems occur;
the control system will immediately take appropriate
action and display the nature of the fault.
Oil Pressure
When a compressor starts, press the relevant “System
Pressures” key and verify that oil differential pressure
(oil pressure-suction pressure) develops immediately.
If oil pressure does not develop, the automatic controls will shut down the compressor. Under no circumstances should a restart attempt be made on a compressor, which does not develop oil pressure immediately.
Switch the UNIT switch to the OFF position.
Loading
Once the unit has been started, all operations are fully
automatic. After an initial period at minimum capacity,
the control system will adjust the unit load depending
on the chilled liquid temperature and rate of temperature change. If a high heat load is present, the controller will increase the speed of the compressor(s).
Condenser and Fan Rotation
Once a compressor is running, discharge pressure
rises as refrigerant is pumped into the air-cooled condenser coils. This pressure is controlled by stages of
fans to ensure maximum unit efficiency while maintaining sufficient pressure for correct operation of the
condensers and the lubrication system.
As discharge pressure rises, the condenser fans operate
in stages or ramp up in speed to control the pressure.
Verify that the fans operate in the correct direction of
rotation and operation is correct for the type of unit.
System Charge
Check system charge at steady full compressor load
only. It is important that all fans are running for the
system. The refrigerant level in the evaporator should
be about in the middle of the sight glass. Unless
levels are at the bottom or the top of the sight glass,
they should not cause concern or require adding or
removing charge.
6
JOHNSON CONTROLS
99
Page 100
SECTION 6 - COMMISSIONING
FORM 201.28-NM1.1
ISSUE DATE: 1/31/2018
GENERAL OPERATION
After completion of the above checks for System 1,
switch OFF the SYS 1 switch on the keypad and repeat
the process for each subsequent system. When all run
correctly, stop the unit, switch all applicable switches
to the ‘ON’ position and restart the unit.
Assure all checks are completed in the Equipment
Pre - Startup and Startup Checklist. The chiller is then
ready to be placed into operation.
Operation in Sub-freezing Conditions
The YVAA may be operated in sub-freezing conditions
if the following freeze protections are taken:
A. A suction service valve electric actuator is in-
stalled. Chiller software will operate the actuator
in order to protect against freezing due to evaporator refrigerant migration.
-or-
B. No suction service valve is installed but the water
circuit valves are kept open, there is continuous
power to the chiller and pump for chilled water
pump control, and the pump will operate and
circulate water through the evaporator whenever
commanded by the chiller.
Unit Maintenance and Shutdown in
Sub-freezing Conditions
If the YVAA is maintained or shut down and will be
subjected to sub-freezing conditions, it is critical to
protect against evaporator and waterbox freeze damage. Johnson Controls recommends the following
options (in order of freeze protection level) be
performed on each circuit.
A. Glycol: Replace water with an appropriate water
to glycol concentration of antifreeze.
-or-
B. Drain: Remove power to the waterbox heaters.
Close the water valves, drain the evaporator, and
leave the evaporator drain valves open.
-or-
C. Refrigerant Valve - Off: Close the water valves,
close ash tank drain valves, close the suction
service valves and leave power to the chiller
for evaporator heater mat and waterbox heater
operation. For units without a suction service
valve, close the discharge and compressor oil
valves.
-or-
The above operation is only advised if
uninterrupted power can be ensured. Unforeseen power interruptions can damage
the evaporator in a very short time frame
if the temperature falls below freezing.
If there is potential for power loss, Johnson Controls recommends the water in the chilled water circuit be replaced with an appropriate water-to-glycol
concentration.
D. Pump Control: Keep power to the chiller in or-
der to have control over chilled water pumps and
heater operation and leave the water circuit valves
open. This will enable water to circulate through
the evaporator to avoid freezing.
Options A and B are the recommended
processes for unit maintenance and
shutdown. Unforeseen power interruptions can damage the evaporator in a very
short time frame if the temperature falls
below freezing.
Failure to follow Johnson Controls freeze
protection recommendations can void the
warranty.
100
JOHNSON CONTROLS
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