Advantage OACS Series User manual

I.O.M. #167 updated 12/11/2019
INSTRUCTION MANUAL • INSTALLATION • OPERATION • MAINTENANCE
ADVANTAGE ENGINEERING, INC.
525 East Stop 18 Road Greenwood, IN 46142
317-887-0729 fax: [phone]
Service Department fax: [phone]
www.AdvantageEngineering.com
E-mail [email protected]
Covering Models
From 20 - 210 Tons
Air-Cooled with MG
Control Instrument
Model:
Serial Number :

INSTRUCTION MANUAL
AIR-COOLED MODELS
with MG Control Instrument
COVERING
INSTALLATION
OPERATION
MAINTENANCE
ADVANTAGE ENGINEERING, INC. 525 East Stop 18 Road Greenwood, IN 46142
317-887-0729 fax: [phone] Service Department fax: [phone]
Website: www.AdvantageEngineering.com E-mail: [email protected]

OACS Central Chillers : with MG Series Control Instrument
Page: 4
ADVANTAGE ENGINEERING, INC.
525 East Stop 18 Road Greenwood, Indiana 46142
317-887-0729 Fax: [phone]
Service Department Fax: [phone]
Email: [email protected]
TABLE OF CONTENTS
1.0 GENERAL 7
1.1 Introduction 8
1.2 Safety 8
1.3 Receiving instructions 10
  1.4 Efciency 10
1.5 Clean air act 10
1.6 Water Treatment 11
1.7 Model Designation 11
1.8 Components 12
2.0 INSTALLATION 13
2.1 General 14
2.2 Unit Location 14
2.3 Chilled Water Piping Installation 15
2.4 Air-Cooled Condenser 15
2.5 Make-Up Water Supply Connection 17
2.6 Electrical Connection 17
2.7 Piping Installation (Typical) 20
3.0 OPERATIONS 21
3.1 General 22
3.2 Start Up / Operation Procedure 23
3.3 MG Instrument Operations 27
3.4 Instrument : Main Menu 30
3.5 Instrument : Setpoints Menu 30
3.6 Instrument : Utilities Menu 32
3.7 Instrument : Network Menu 33
3.8 Instrument : Flow Menu (optional) 34
3.9 Instrument : Options Menu 35
3.10 Instrument : Machine Menu 36
3.11 Controls 39
3.12 Pressure Gauges & Alarm Beacon 40
3.13 Digital Pressurestat Set Up 41
3.14 Shut Down Procedure 43
4.0 TROUBLESHOOTING 45
4.1 Unit Will Not Start 46
4.2 Compressor Hums But Will Not Start 46
4.3 Shuts Off On High Pressure 46
4.4 Shuts Off On Low Pressure 47
4.5 Compressor Shuts Off On Internal Overload 48
4.6 Low or No Process Pressure or Water Flow 48
4.7 Cooling Capacity Inadequate 48
4.8 Sensor 48
4.9 Coolant Pumps 49
4.10 Oil Pressure 49
4.11 Crankcase Heater 49
4.12 Chiller Controller 49

OACS Central Chillers : with MG Series Control Instrument
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ADVANTAGE ENGINEERING, INC.
525 East Stop 18 Road Greenwood, Indiana 46142
317-887-0729 Fax: [phone]
Service Department Fax: [phone]
Email: [email protected]
5.0 MAINTENANCE 51
5.1 Warranty Service Procedure 52
5.2 Periodic Preventative Maintenance 52
5.3 Special Maintenance 53
5.4 Solenoid Valve Service 54
5.5 Pump Seal Service 56
5.6 Checking Refrigerant Charge 59
5.7 Proper Cleaning Procedure for Brazed Plate Evaporators 59
6.0 COMPONENTS 61
6.1 Refrigeration Components 62
6.2 Coolant System 64
7.0 RELATED DRAWINGS 65
7.1 Typical Circuit Schematic 66
7.2 Typical Physical Drawing 67
7.3 Typical Press Drip 68
7.4 Typical Vacuum Breaker / Anti-Siphon System 69
7.5 Typical Label Placement Drawing 70
7.6 Typical Panel / Control Station Drawing 71
8.0 APPENDIX 73
8.1 Operations Below 48°F Fluid or 38°F Ambient 74
8.2 Refrigerant Pressure-Temperature Chart 76
8.3 Inhibited Propylene Glycol 77
8.4 Chiller Capacity & Derate Chart 77
8.5 Standard MG Instrument Settings 78
8.6 Probe Calibration : MG Instrument 79
8.7 Status Indicators : MG Instrument 81
8.8 Water Quality 82
8.9 Modbus Registers 84

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OACS Central Chillers : with MG Series Control Instrument
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ADVANTAGE ENGINEERING, INC.
525 East Stop 18 Road Greenwood, Indiana 46142
317-887-0729 Fax: [phone]
Service Department Fax: [phone]
Email: [email protected]
1.0 GENERAL
1.1 Introduction
1.2 Safety
1.3 Receiving Instructions
1.4 Efciency
1.5 Clean Air Act
1.6 Water Treatment
1.7 Model Designation
1.8 Components

OACS Central Chillers : with MG Series Control Instrument
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ADVANTAGE ENGINEERING, INC.
525 East Stop 18 Road Greenwood, Indiana 46142
317-887-0729 Fax: [phone]
Service Department Fax: [phone]
Email: [email protected]
1.1 INTRODUCTION
A. This manual covers OACS central chillers from 5 to 210 tons (17.2 to 717.4 kW) of
cooling capacity using the Advantage MG microprocessor control instrument and
xeddisplacementscrollcompressorsanddigitalscrollcompressors.Thestandard
uidoperatingtemperaturerangeforthischilleris20°Fto80°FforunitsusingR410A
refrigerant. Units using other refrigerants have different standard operating ranges. Units
operatingbelow48°Fuidrequiretheuseofawater/propyleneglycoltopreventfreezing.
Customized units may have different operating ranges. Consult the factory if you have
questions about the operating range of your chiller.
B. The intent of this manual is to serve as a guide in the installation, operation and
maintenance of your chiller. Improper installation can lead to equipment damage
and poor performance. Failure to follow the installation, operation and maintenance
instructions may result in damage to the unit that is not covered under the limited
warranty. This manual is for standard products. The information contained in this manual
is intended to be general in nature. The information is typical only and may not represent
the actual unit purchased.
C. Chemical refrigerants are used in this unit. The refrigerant is sealed and tested in a
pressurized system however a system failure will release it. Refrigerant gas can cause
toxicfumesifexposedtore.Installthisunitinawell-ventilatedareaawayfromopen
ames.Failuretofollowtheseinstructionsmayresultinahazardouscondition.Recover
refrigerant to relieve pressure before opening the system. See nameplate for refrigerant
type. Do not use non-approved refrigerants or refrigerant substitutes.
D. Customers should implement a refrigerant management program to document the type
and quantity of refrigerant in each chiller. All refrigeration service technicians performing
workonthischillermustbelicensedandcertied.
E. WhencallingforassistancefromtheManufacturer’sServiceDepartment,itisimportant
to know the model and serial number of the particular unit. The model number includes
criticalunitinformationwhichishelpfulwhentroubleshootingoperatingdifculties.The
serial number allows the service team to locate manufacturing and testing records which
can have additional information relating to a particular unit.
F. If the chiller is installed in an environment where ambient temperatures could be under
35°F and/or if the unit operating set point will be 48°F or lower, a glycol and water
solution must be used instead of water. See section 8.1 for glycol ratio recommendations
and proper unit setting.
1.2 SAFETY
A. It is important to become thoroughly familiar with this manual and the operating
characteristics of the unit.
B. Itistheowner’sresponsibilitytoassureproperoperatortraining,installation,operation,
and maintenance of the unit.
C. Observe all warning and safety placards applied to the chiller. Failure to observe all
warnings can result in serious injury or death to the operator and severe mechanical
damage to the unit.

OACS Central Chillers : with MG Series Control Instrument
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ADVANTAGE ENGINEERING, INC.
525 East Stop 18 Road Greenwood, Indiana 46142
317-887-0729 Fax: [phone]
Service Department Fax: [phone]
Email: [email protected]
D. Observe all safety precautions during installation, startup and service of this
equipment due to the presence of high voltage and refrigerant charge. Only
qualiedpersonnelshouldinstall,startupandservicethisequipment.
E. When working on this equipment, observe precautions in literature and on
tags, stickers and labels located on the equipment. Wear work gloves and
safety glasses.
WARNING: This equipment contains hazardous voltages that can cause severe injury or death.
Disconnect and lock out incoming power before installing or servicing the equipment.
WARNING: This equipment contains refrigerant under pressure. Accidential release of
refrigerant under pressure can cause personal injury and or property damage. Exercise care
while working on or around this equipment.
WARNING: Vent all refrigerant relief valves in accordance to ANSI/ASHRAE Standard 15,
Safety Code for Mechanical Refrigeration. This equipment should be located within a well-
ventilated area. Inhalation of refrigerant can be hazardous to your health and the accumulation
of refrigerant within an enclosed space can displace oxygen and cause suffocation
WARNING
J5318-BF
WARNING
Samples of Warning Labels applied to typical chillers.
Alerts users to the danger of high voltage.
Alerts user to the danger of the rotating
condenser fans on air condensed units.
Alerts user to the danger of belt drive
systems on unit with blowers.
This symbol is seen on all chillers
to alert user to the danger of the
refrigeration system under pressure.
System should only be serviced by a
licensed technician.

OACS Central Chillers : with MG Series Control Instrument
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ADVANTAGE ENGINEERING, INC.
525 East Stop 18 Road Greenwood, Indiana 46142
317-887-0729 Fax: [phone]
Service Department Fax: [phone]
Email: [email protected]
1.3 RECEIVING INSTRUCTIONS
A. Check the overall condition of the equipment prior to accepting delivery.
B. Check for visible damage and document any evident damage on the delivery receipt.
Check the refrigerant gauges to be sure the system charge is intact. See the chart
in section 8.4 for proper pressure readings based on the ambient temperature and
refrigerant type used in the chiller. Shipping damage is the responsibility of the carrier.
C. In order to expedite payment for damages, should they occur, follow proper procedures
and keep detailed records. Take photographs of any suspected damage.
1.4 EFFICIENCY
A. Longtermefciencyofoperationislargelydeterminedbypropermaintenanceofthe
mechanical parts of the unit and the water quality. The Manufacturer recommends
lteringtheprocesswatertopreventsolidsfrompluggingcriticalparts.TheManufacturer
highlyrecommendsthattheservicesofaqualiedwatertreatmentspecialistbeobtained
and their recommendations be followed. The Manufacturer accepts no responsibility for
inefcientoperation,ordamagecausedbyforeignmaterialsorfailuretouseadequate
water treatment.
1.5 CLEAN AIR ACT
A. Units manufactured after January 1, 2010 may contain refrigerant HFC-410A, HFC-407C,
HFC-404A or HFC-134A. Most units manufactured prior to January 1, 2010 contain
refrigerant HCFC-22.
B. It is unlawful for any person in the course of maintaining, servicing, repairing, or disposing
of refrigeration equipment to knowingly vent or otherwise dispose of any substance used
as a refrigerant in the manner which permits such substance to enter the atmosphere.
C. Very small releases associated with good faith attempts to recapture, reclaim or
recycle such substance shall not be subject to the prohibition set forth in the preceding
paragraph.
D. Customers should implement a refrigerant management program to document the type
and quantity of refrigerant in each chiller. All refrigeration service technicians performing
workonthischillermustbelicensedandcertied.
WARNING: Vent all refrigerant relief valves in accordance to ANSI/ASHRAE Standard 15,
Safety Code for Mechanical Refrigeration. This equipment should be located within a well-
ventilated area. Inhalation of refrigerant can be hazardous to your health and the accumulation
of refrigerant within an enclosed space can displace oxygen and cause suffocation.

OACS Central Chillers : with MG Series Control Instrument
Page: 11
ADVANTAGE ENGINEERING, INC.
525 East Stop 18 Road Greenwood, Indiana 46142
317-887-0729 Fax: [phone]
Service Department Fax: [phone]
Email: [email protected]
E. Vent all refrigerant relief valves in accordance to ANSI/ASHRAE Standard 15.
1.6 WATER TREATMENT
A. The use of untreated or improperly treated water in a portable chiller may result in
scaling, erosion, corrosion, algae or slime.
B. Itisrecommendedthattheservicesofaqualiedwatertreatmentspecialistbeengaged
to determine what water treatment is required.
C. Advantage assumes no responsibility for equipment failures which result from untreated
or improperly treated water.
D. Do not use deionized water in this unit. Some customized units may be compatible with
deionized water. Consult the factory before using deionized water.
E. If the chiller is installed in an environment where ambient temperatures could be under
35°F and/or if the unit operating set point will be 48°F or lower, a glycol and water
solution must be used instead of water. See section 8.1 for glycol ratio recommendations
and proper unit setting.
1.7 MODEL DESIGNATION
A. TheSerialNumberidentiestheexactcongurationofyourunitandshouldbeavailable
when contacting the Factory for service or information.
B. There maybe additional numbers and letters at the end of the model number to indicate
additionalcongurationoptionsonthemachine.
WARNING: Improper water treatment will void unit warranty.
Typical placement of the Data tag.
Note: Data tag may be placed
elsewhere on certain models.
OACS Series
Chiller Model
Nominal Capacity
OACS - 10S - MG - 1P
Zones
S: Single Zone
D: Dual Zone
Instrument
MG : MG Control Instrument
M1: M1 Series Controller
MZC: Multizone Controller
PLC: Programmable Logic Controller
# of Pumps
1P: Single Process Pump
2P: Process & Evaporator Pumps
3P: Process, Evaporator & Standby Pumps
OASC Series
Central Chillers

OACS Central Chillers : with MG Series Control Instrument
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ADVANTAGE ENGINEERING, INC.
525 East Stop 18 Road Greenwood, Indiana 46142
317-887-0729 Fax: [phone]
Service Department Fax: [phone]
Email: [email protected]
1.8 COMPONENTS
To Process
Connection
Process Pump
From Process Connection Evaporator Pump

OACS Central Chillers : with MG Series Control Instrument
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ADVANTAGE ENGINEERING, INC.
525 East Stop 18 Road Greenwood, Indiana 46142
317-887-0729 Fax: [phone]
Service Department Fax: [phone]
Email: [email protected]
2.0 INSTALLATION
2.1 General
2.2 Unit Location
2.3 Chilled Water Piping Installation
2.4 Air-Cooled Condenser
2.5 Make-Up Water Supply Connection
2.6 Electrical Connection
2.7 Piping installation

OACS Central Chillers : with MG Series Control Instrument
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ADVANTAGE ENGINEERING, INC.
525 East Stop 18 Road Greenwood, Indiana 46142
317-887-0729 Fax: [phone]
Service Department Fax: [phone]
Email: [email protected]
2.1 GENERAL
A. Check the overall condition of the equipment prior to accepting delivery. Check for visible
damage and document any evident damage on the delivery receipt. Shipping damage is
the responsibility of the carrier.
B. Allprocesspipingmaterials(suchashose,rigidpiping,valvesorlters)usedinprocess
water piping circuitry must be rated for 100°F minimum temperature and 100 PSI
minimum pressure.
C. All such materials must have the equivalent or larger diameter of the particular process
connection that length of process water piping is connected to.
D. If the chiller is installed in an environment where ambient temperatures could be under
35°F and/or if the unit operating set point will be 48°F or lower, a glycol and water
solution must be used instead of water. See section 8.1 for glycol ratio recommendations
and proper unit setting.
2.2 UNIT LOCATION
A. Before placing the unit into position a review of the most suitable location must be made.
This unit is designed for outdoor installation.
B. Factors to consider when selecting a suitable installation location:
1. Provision for adequate ambient air supply to the condenser.
2. Loading capacity of roof or pad.
3. Distance to suitable electrical supply.
4. Accessibility for maintenance.
5. Applicable building codes.
6. Adjacent buildings relative to noise levels.
C. Foundation or roof location. The chiller must be installed on a rigid and level mounting
surface with adequate strength to support the operating weight of the chiller including the
weight of water and attached piping.
D. Provision for adequate air supply for condenser:
1. The unit should be located in an area free of foreign material which could clog
the condenser air intake. It should be located on a hard level surface, a concrete
pad is recommended.
2. All sides of the unit must be a minimum of 4 feet away from any wall or
obstruction. Overhead obstructions are not permitted. If enclosed by walls, the
unit must be installed as indicated for a unit in a pit.

OACS Central Chillers : with MG Series Control Instrument
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ADVANTAGE ENGINEERING, INC.
525 East Stop 18 Road Greenwood, Indiana 46142
317-887-0729 Fax: [phone]
Service Department Fax: [phone]
Email: [email protected]
3. For installation of multiple units, a minimum of 8 feet is required between units
placed side by side. If placed end to end a minimum of 4 feet is required between
units.
4. Units in pits must have the top of the condenser level with or above the top of the
pit and a minimum of 8 feet is required between the unit and the pit walls.
5. Louvers/fences must have a minimum of 80% free area 4 feet minimum
clearance between the unit and the lovers/fence. Height of the louver/fence must
not exceed the top of the unit.
6. If the chiller is installed in an environment where ambient temperatures could be
under 35°F and/or if the unit operating set point will be 48°F or lower, a glycol
and water solution must be used instead of water. See section 8.1 for glycol ratio
recommendations and proper unit settings.
2.3 CHILLED WATER PIPING INSTALLATION
A. There are two piping connections on the unit. One is labeled TO
PROCESS, and the other is labeled FROM PROCESS. Refer to
typical drawings for recommended piping practices or optional plant
layout drawing if supplied.
B. FROM PROCESS : Connect the from process port to the from
process supply header.
C. TO PROCESS : Connect the to process port to the process supply header.
D. Install a high volume basket strainer in the From Process line with
isolationvalves.Abasketstrainerorbaglterwitha20mesh(400
micron)ornerscreenwillprotecttheunit.Installingalterthat
istoonemaybeunnecessaryandmayresultinfrequentlter
maintenance. A “wye” type strainer is not recommended because
it does not have adequate debris holding capacity.
E. Process water piping should be designed to avoid excessive elbows and/or lengths of
pipe or hose. Insulation of these lines is recommended to prevent condensation and
capacity losses due to heat absorption.
F. Valvesandltersmaybeinstalledintheprocesswaterpipingtofacilitateserviceand
maintenance provided that such devices maintain the full inside diameter of the process
connection. If installed, all such devices must be open and clean during unit operation.
2.4 AIR-COOLED CONDENSER
A. The unit should be located in an area free of foreign material which could clog the
condenser air intake. It should be located on a hard level surface, a concrete pad is
recommended.
B. All sides of the unit must be a minimum of 4 feet away from any wall or obstruction.
Overhead obstructions are not permitted. If enclosed by walls, the unit must be installed
as indicated for a unit in a pit.
From ProcessTo Process
This label marks the To
Process connection
From Process
This label marks the From
Process connection
Typical wye strainer -
Not recommended.

OACS Central Chillers : with MG Series Control Instrument
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ADVANTAGE ENGINEERING, INC.
525 East Stop 18 Road Greenwood, Indiana 46142
317-887-0729 Fax: [phone]
Service Department Fax: [phone]
Email: [email protected]
C. For installation of multiple units, a minimum of 8 feet is required between units placed
side by side. If placed end to end a minimum of 4 feet is required between units.
D. Units in pits must have the top of the condenser level with or above the top of the pit and
a minimum of 8 feet is required between the unit and the pit walls.
E. Lovers/fences must have a minimum of 80% free area and 4 feet minimum clearance
between the unit and the lovers/fence. Height of the louver/fence must not exceed the top
of the unit.
F. If the chiller is installed in an environment where ambient temperatures could be under
35°F and/or if the unit operating set point will be 48°F or lower, a glycol and water
solution must be used instead of water. See section 8.1 for glycol ratio recommendations
and proper unit setting.
Typical Process Con-
nections shown on a
single zone unit.
Typical Process Con-
nections shown on a
dual zone unit.

OACS Central Chillers : with MG Series Control Instrument
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ADVANTAGE ENGINEERING, INC.
525 East Stop 18 Road Greenwood, Indiana 46142
317-887-0729 Fax: [phone]
Service Department Fax: [phone]
Email: [email protected]
2.5 Make-up WATER SUPPLY CONNECTION (Optional - in non-freeze
Climate applications only)
A. The automatic water make-up system continually monitors the
reservoirtankandllsitwhenneeded.Connectasfollows:
1. Usingappropriatelyratedhoseoruidpipingconnectthe
“watermake-up”connectiontotheplant’swatersource.
2. Minimum make-up water supply pressure is normally 20 psi.
3. Install an owner supplied shut off valve in the make-up water supply line. Install
this valve on the outside of the unit.
4. Useabackowpreventiondeviceasmayberequiredbylocalcodestoprevent
possible contamination of potable water.
B. Do not use automatic water make-up system when operating with glycol below 48°F or
when ambient temperature may be 35°F or lower.
2.6 ELECTRICAL CONNECTION
A. STANDARD MODELS
1. Units are constructed with a weather resistant electrical enclosure and branch
circuitfusing.Electricalpowersupplyrequirementsareidentiedonthe
equipmentdataplate.Determinetheplant’svoltagesupplyisthesameasthe
unit’svoltagerequirements.
2. All electrical wiring must comply with local codes and the National Electric Code.
3. Electricalpowersupplyrequirementsforstandardunitsareidentiedonthe
equipmentdatatag.Determinethattheplant’svoltagesupplyisthesameasthe
unit’svoltagerequirements,takingintoaccounttheSSCRRating.
WARNING: Check local codes to determine proper use of back ow prevention device in water
make-up supply line.
WARNING: Do not connect the unit to a voltage supply not equal to the unit’s voltage
requirements as specied on the unit’s data plate. Use of incorrect voltage will void the unit’s
warranty and cause a signicant hazard that may result in serious personal injury and unit
damage.
WARNING: Electric Shock Hazard. High Voltage is present in the electrical cabinet. Disconnect
power before servicing. Follow all facility lock-out tag-out procedures.
From ProcessTo Process
Condenser
Water In
Condenser
Water Out
Water Make-up
This label marks the Water
Make-up connection

OACS Central Chillers : with MG Series Control Instrument
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ADVANTAGE ENGINEERING, INC.
525 East Stop 18 Road Greenwood, Indiana 46142
317-887-0729 Fax: [phone]
Service Department Fax: [phone]
Email: [email protected]
4. A customer supplied, four conductor cable is
required for connection to a customer supplied fused
disconnecting means. The fused disconnecting means
shallbesizedandinstalledaccordingtotheunit’s
power supply requirements and local electrical codes.
(Some custom units may include a fused or non-fused
disconnect switch.)
5. Connect the four conductor power cable to the power
entryterminalblockontheunit’selectricalpanel.
Then connect the power cable to the fused disconnect
switch. There is no power entry hole into the electrical
cabinet. This allows the matching of the entry hole size
andlocationtothecustomersuppliedttings.
6. Aunitspecicelectricaldrawingisshippedwiththe
unit.
7. Voltage supplies must be within +/- 10% of the name plate voltage and must be
within 2% from leg to leg. Extreme voltage imbalance or using the wrong voltage
can damage your chiller and cause premature unit failure as well as a safety risk.
8. A proper ground is required for the unit.
B. CONTROL CIRCUIT WIRING
1. Theunit’ssuppliedcontrolcircuitis110volt,1phase,60cycle.
2. The control circuit is supplied by the factory installed transformer. A control circuit
fuse is provided.
C. GENERAL
1. Makecertainallgroundconnectionstotheunitareproperlyafxed.
2. Make certain power conductor, disconnecting means, and fusing are properly
sizedaccordingtotheunit’spowersupplyrequirements.
3. Follow all local and national codes.
4. Make certain that all owner and factory wire connections are tight before applying
power to the unit.
WARNING: Check that all electrical connections are tight before starting.
Disconnect power before servicing. Follow all facility lock-out tag-out procedures.
Typical data tag.

OACS Central Chillers : with MG Series Control Instrument
Page: 19
ADVANTAGE ENGINEERING, INC.
525 East Stop 18 Road Greenwood, Indiana 46142
317-887-0729 Fax: [phone]
Service Department Fax: [phone]
Email: [email protected]
Zone Board 3 Phase Monitor
Transformer Power Entry
Compressor StartersPump Starters
Fuse Block
Typical electrical panel show. Refer to the electrical
drawing provided for details to the particular unit.

OACS Central Chillers : with MG Series Control Instrument
Page: 20
ADVANTAGE ENGINEERING, INC.
525 East Stop 18 Road Greenwood, Indiana 46142
317-887-0729 Fax: [phone]
Service Department Fax: [phone]
Email: [email protected]
4
5
6
10
23 9
13
17
22
12
12
14
15
11
11
20
20
18
18
19
16
16
21 21
7
8
2
3
1
2.7 PIPING INSTALLATION (TYPICAL)
1. Chiller (2 pump outdoor system).
2. Reservoir Drain Connection.
3. Open Drain (can use separate drain or tie into system multi-use drain Item #15).
4. Pump discharge connection (supply To Process).
5. Reservoir Return Connection (From Process).
6. Chilled Water Pipe (To Process, this pipe runs from the outdoor chiller location into the building / process
area).
7. Filter(MLSSeriesIn-Linefullowdesign).
8. WaterInletConnection(lter).
9. WaterOutletConnection(lter).
10. BypassPipeWithValves(redirectionofprocesswaterowduringlterservice).
11. Drain-Back Dam (keeps header pipes full during pump shut down periods).
12. Main Header Valves (closed for header service or during use of alternate source of cooling water).
13. Alternate Source of Cooling Water On/Off Valve (for system emergency back-up).
14. Alternate Water Supply Source (for system emergency back-up).
15. SystemMulti-UseOpenDrain(reservoiroverow,reservoirdrain,systememergencyback-up).
16. Process Water Drops From Header To Use Point (valved for servie shut-off).
17. Pressure Gauge and Thermometer (for system performance monitoring and evaluation).
18. Header Ends Valved and Capped (for future expansion).
19. HeaderBy-PassValve(adjustableandpressureactivatedtomaintainowinheaderduringlowprocess
demand).
20. Branch Header Valves (for header service isolation).
21. Branch Header.
22. Valve to Open Drain (for system emergency back-up).
23. Chilled Water Pipe (from process, this pipe runs from the building / process area to the outdoor chiller
location).
This drawing is supplied to demonstrate a possible
pipingcongurationfortheequipmentandis
general in nature showing pipe sizes and basic
routing. It is not intended to be inclusive of every
detailrequiredforspeciclocationandinstallation.
Consult with a professional engineer to determine
specicneedsbeforeinstallation.