tc_rcue40-400ag1.pdf
TRANSCRIPT
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AIR COOLEDWATER CHILLERS-SCREW TYPE-
Installation, Operation and Maintenance Instructions.Design Information
Technical Catalog
RCUE40AG1-400AG1 (R407C)Cooling Capacity 108 kW - 1068 kW
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0TABLE OF CONTENTS
1 IMPORTANT NOTICE.................................................................................................................. 1
2 FEATURE AND BENEFITS ......................................................................................................... 12.1 NEW CHILLER PICTURE.............................................................................................................................12.2 COMPRESSOR ........................................................................................................................................22.3 CONTROL ...............................................................................................................................................32.4 HEAT EXCHANGER ...................................................................................................................................4
3 OPERATION INSTRUCTIONS .................................................................................................... 53.1 HITACHI AIR-COOLER WATER CHILLER MODELS............................................................................................5
4 COMPONENTS OF CHILLER ..................................................................................................... 64.1 STRUCTURE DRAWING..............................................................................................................................6
5 PREPARATION INITIAL CHECK ................................................................................................ 75.1 INITIAL CHECK.........................................................................................................................................75.2 PLACING THE UNIT ...................................................................................................................................75.3 CENTRE OF GRAVITY................................................................................................................................85.4 SERVICE SPACE AND FOUNDATION.............................................................................................................95.5 TRANSPORTATION ...................................................................................................................................10
6 INSTALLATION ........................................................................................................................... 116.1 ELECTRICAL WIRING.................................................................................................................................116.2 WATER PIPING.........................................................................................................................................136.3 TYPICAL COMMON WATER PIPING ...............................................................................................................146.4 MINIMUM INTERNAL SYSTEM WATER VOLUME ..............................................................................................156.5 WATER CONTROL ....................................................................................................................................156.6 BMS CONNECTION ...................................................................................................................................166.7 INSTALLATION FINAL CHECK......................................................................................................................19
7 TEST RUNNING........................................................................................................................... 207.1 PREPARATION.........................................................................................................................................207.2 TEST RUNING ..........................................................................................................................................207.3 INSTRUCTIONS AFTER TEST RUNNING.........................................................................................................20
8 CONTROLLER ADJUSTMENT ................................................................................................... 218.1 CONTROLLER SYSTEM..............................................................................................................................228.2 CONTROLLER ADJUSTMENT ......................................................................................................................22
9 SELF-INSPECTION FUNCTIONS .............................................................................................. 259.1 ALARM INDICATION ..................................................................................................................................259.2 NORMAL INDICATION ................................................................................................................................269.3 FUNCTION FOR INDICATION OF OPERATION CONDITION.................................................................................26
10 CONTROL SYSTEM .................................................................................................................. 29
11 MAINTENANCE ......................................................................................................................... 4011.1 COMPONENTS.......................................................................................................................................4011.2 LUBRICATION ........................................................................................................................................4011.3 DEPOSIT...............................................................................................................................................4011.4 CLEANING METHOD................................................................................................................................4111.5 WINTER SHUTDOWN...............................................................................................................................4411.6 SPRING START-UP .................................................................................................................................4411.7 PART REPLACEMENT..............................................................................................................................4411.8 REFRIGERANT CYCLE.............................................................................................................................4411.9 REFRIGERANT CYCLE DIAGRAM OF HITACHI AIR-COOLED WATER CHILLER .....................................................4511.10 REFRIGERANT CYCLE DIAGRAM OF HITACHI AIR-COOLED WATER CHILLER (WITH ECONOMIZER) .......................4611.11 COMPRESOR REMOVAL ..........................................................................................................................4711.12 SAFETY AND CONTROL DEVICE SETTING ...................................................................................................4811.13 NORMAL OPERATING PRESSURE..............................................................................................................5011.14 TEST RUNNING AND MAINTENANCE RECORD..............................................................................................5111.15 DAILY OPERATING RECORDS ...................................................................................................................5211.16 SEVICING FOR R407C REFRIGERANT SYSTEM..........................................................................................53
12 TROUBLESHOOTING ............................................................................................................... 53
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0TABLE OF CONTENTS (cont.)
13 GENERAL SPECIFICATIONS ...................................................................................................5313.1 GENERAL DATA .....................................................................................................................................55
14 DRAWINGS ................................................................................................................................5914.1 DIMENSIONAL DRAWING .........................................................................................................................5914.2 WIRING DIAGRAM...................................................................................................................................62
15 MODEL SELECTION .................................................................................................................8015.1 SELECTION EXAMPLE .............................................................................................................................8015.2 PERFORMANCE TABLE (R407C) .............................................................................................................8115.3 ELECTRICAL DATA (R407C) ...................................................................................................................8615.4 SOUND DATA (R407C) ..........................................................................................................................87
16 APPLICATION DATA.................................................................................................................8816.1 WORKING RANGE ..................................................................................................................................8816.2 PART LOAD PERFORMANCE ....................................................................................................................8916.3 ETHYLINE GLYCOL APPLICATION..............................................................................................................91
17 COMPONENTS DATA ...............................................................................................................9317.1 COMPRESSOR.......................................................................................................................................9317.2 CONDENSER AND CONDENSER FAN .........................................................................................................9317.3 WATER COOLER ....................................................................................................................................94
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IMPORTANT NOTICE 1/1
1. IMPORTANT NOTICE! HITACHI pursues a policy of continuing improvement
in design and performance of Products. The right istherefore reserved to vary specifications without notice.
! HITACHI cannot anticipate every possiblecircumstance that might involve a potential hazard.
! No part of this manual may be reproduced withoutwritten permission.
! Signal words (DANGER, WARNING and CAUTION)are used to identify levels of hazard seriousness.Definitions for identifying hazard levels are providedbelow with their respective signal words.
! DANGER:Immediate hazards which WILL result in severepersonal injury or death.
" WARNING:Hazards or unsafe practices which COULD result insevere personal injury or death.
# CAUTION:Hazards or unsafe practices which COULD result inminor personal injury or product or property damage.
NOTE:Useful information for operation and/or maintenance.
! If you have any questions, contact your contractor ordealer of HITACHI.
! This instruction gives a common description andinformation for this air-cooled water Chiller which youoperate as well as for other models.
! This air-cooled water Chiller has been designed for thefollowing temperatures. Operate the air-cooled waterChiller within this range.
Working Range CMaximum Minimum
Condenser AirInlet Temperature 43 5 (option: -15)
Chilled WaterOutlet Temperature 15 5
! This instructions should be considered as a permanentpart of the air-cooled water Chiller equipment andshould remain with the air-cooled water Chillerequipment.
2. FEATURES AND BENEFITS
2.1. NEW CHILLER PICTURE
HITACHI is a world leader in technology and with continualresearch and product development, now offer a screw typeAir Cooled Chillers. A wide range of capacity areavailable from 108 KW to 1002KW.
Twin screw compressor is compatible with R407C andR22, utilising the same oil and continuous capacity controlis giving the best efficiency to this system.
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2/2 FEATURES AND BENEFITS
2.2. COMPRESSOR" The Samurai Range incorporates
the latest development ofHITACHIs Screw CompressorTechnology for the newmillennium.
$ Highly Reliable HITACHI Two-PoleMotor
% Solenoid Valve for Capacity Control
& Built-in Oil Separator
' Oil Sight Glass( Oil Heater
) High precision Twin Screw Rotors
* Suction Filter
" Twin Screw Compressor! Dual refrigerant compressor for R407C or R22 utilising
the same oil.! By having so few moving parts, it has become highly
reliable with very low noise level and low vibration.
-LOW VIBRATION-
" Principle of Compression
" Continuous Capacity ControlHITACHIs Continuous Capacity Control system usesadvanced electronic controls to position the infinitely variableslide valve within each compressor.This modulation allows exact load control and accuratechilled water temperature without the need for expensiveinverters.
$
%&
'
()
*
Reciprocating ScrewAM
PLIT
UD
E (
m)
Time (second)
Discharge Port
Suction Port
Cooling load = continuos capacity control
CO
OLI
NG
LO
AD %
Stepcontrol
TIME (Hour)
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FEATURES AND BENEFITS 2/3
" Energy Saving
Thanks to Continuous Capacity Control, 15~20% energysaving is possible compared with current step controlsystems due to the following:
! The cooling load can be more closely matched! Continuous Capacity Control takes advantage of high
efficiency part load performance.! Frequent compressor starts and stops are eliminated.
-PART LOAD PERFORMANCE-
2.3. CONTROL" Many FunctionsNewly developed Control Board has many functions shownbelow as standard.
! REMOTE/LOCAL changeover switch! Individual Alarm! Pump operation circuit! Pump Freeze Protection Control! Reverse Phase Protection! Time Guard! Star Delta starting Circuit! Easy Interfaceetc...
" Precise Temperature ControlCombination of "Continuous Capacity ControlCompressor" and "HITACHIs uniqueelectronic controls" enable the Chiller tocontrol outlet water temperature precisely,independent of cooling load.This control benefits not only air-conditioningbut also industrial process use.
-CONTINUOUS CAPACITY CONTROL-
-CONVENTIONAL STEP CONTROL-
MO
TOR
INPU
T (%
)
COOLING CAPACITY (%)
ContinuousCapacityControl
StartOutlet Water Temperature
Load Up 2
Load Up 1(Quick cooling)
Neutral =2C Standard(Minimum 0.5C)
Load Down
TIME
WAT
ER T
EMPE
RAT
UR
EW
ATER
TEM
PER
ATU
RE
Restart
1st step
Final step
OutletTemperature
TemperatureBand 7C(normally)
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2/4 FEATURES AND BENEFITS
2.4. HEAT EXCHANGER
" Plate Type EvaporatorThe new Samurai Chillers are equipped with plate type HeatExchangers, which have many advantages when comparedwith conventional Shell & Tube evaporators as describedbelow:
! Less Refrigerant (Small Internal Volume)! Clean (Stainless Steel)! High efficiency (closer approach temperature)! Plate type heat exchanger can provide improved cooling
capacity for R407C
" AirCooled CondenserHITACHIs patented high performance SLIT FIN and inner-grooved tube are applied to provide high performance andcompact heat exchangerFins are Acrylic Resin pre-coated against corrosion asstandard.
SHELL & TUBE PLATEC
APAC
ITY
(%)
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OPERATION INSTRUCTIONS 3/5
3. OPERATION INSTRUCTIONS
3.1. HITACHI AIR-COOLED WATER CHILLERS
To Start the Unit.1. Open the water inlet and outlet valves.2. After assuring that all control switches have been cut
OFF, and the "LOCAL/REMOTE" switch on the printedcircuit board is in the "REMOTE" position, turn ON thepower switch.
3. Confirm that phases R, S and T are correctly connected.The correct phase connection can be checked by aphase sequence indicator. If not correctly connected, thecompressor does not start due to activation of a reversalphase protection device. Cut the main switch andinterchange two of three terminals, R, S and T at themain power source terminals.
4. Fully open the liquid line stop valves.5. Operate the chilled water pump.6. Depress the "*ON" push button switch.
( * Field-Supplied )7. Set the thermostat at the desired temperature
To Stop the Unit1. Depress the "*OFF" push button switch.
( * Field Supplied)2. Switch OFF the main power source when the unit is shut
down for a long period of time.
Pilot LampThe red lamp indicates the normal operation.When the red lamp is flickered or the orange lamp isactivated, any one of the safety devices may befunctioning.Please contact your service shop, if this condition isdetected.
Daily Checking1. Check the power supply to ensure that it is proper.2. Check for abnormal sounds and vibration.3. Check the unit amperage.4. Check the operating pressure.
Troubleshooting" Unit Does Not Start1. Is the main switch ON?2. Is the main fuse OK?3. Is the chilled water running?4. Are the thermostats calling for the cooling operation?
" Poor Cooling Operation1. Is sufficient Air supplied to the condenser?2. Are the setting temperature correct?3. Are the operating pressures normal?4. Is sufficient water running through the water cooler?
" Maintenance1. Remove any obstacles to condenser Airflow, and clean
the condenser.2. Clean the unit with a cleaner.3. Clean the water cooler. (It is recommended that a
specialist will be contacted for this type of work.)
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4/6 COMPONENTS OF CHILLER
4. COMPONENTS OF CHILLER
4.1. STRUCTURE DRAWING" HITACHI Air-Cooled Water Chiller (Example of 2 Compressor Chiller)
N Name N Name1 Compressor 9 Operation Switch2 Water Cooler 10 Expansion Valve3 Condenser 11 Liquid Line Stop Valve4 Electrical Box 12 Dryer Strainer5 Power Wiring Supply 13 Liquid Sight Glass6 Fan 14 Solenoid Valve7 Check Valve 15 Regulation Valve8 Oil Sight Glass 16 Economizer
Air Inlet
Air Outlet Air Outlet
Air Inlet Air Inlet
Water Inlet
Water Outlet
N1 CYCLE N2 CYCLE
Air Outlet
Detail of LPIPE structure.
Remote/ Local ChangeoverSwitch is Rear Side.
POWEROPERATIONALARM
ON OFFCHECK
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PREPARATION INITIAL CHECK 5/7
5. PREPARATION INITIAL CHECK
5.1. INITIAL CHECK" Required MaterialsMeasure and Architectural Information RegardingInstallation Location" Installation LocationConfirm that the final installation location is provided withconvenient piping and wiring work. Strong water runoffshould be avoided." Installation SpaceCheck for obstacles which restrict condenser Air flow orhamper maintenance work in the space specified in Fig. 1." FoundationCheck to ensure that the foundation is flat, level andsufficiently strong, taking into account the maximumfoundation gradient (Fig. 2) and the unit weight balance.Confirm elevation provision for the unit on a solid base withan iron frame or concrete curbs shown inchapter 4.4.
In order to obtain proper clearance beneath the unit foreither rooftop or on-the-ground installation, wherefoundation bolts should be sunk into concrete. Additionally,for on-the ground installation, provide a gravel or concretespace around the condenser Air intake; in order to avoidAirflow obstruction due to grass or other vegetation." UnitCheck to ensure that the unit has been transported withoutdamage. File a damage claim with the transportationcompanies if mishandling due to transportation companynegligence is suspected." TransportationSecure the route to the final installation location byconfirming the dimensions, (Refer to the "Unit GeneralData" in Catalogue).
5.2. PLACING THE UNIT
! DANGER:If leakage is detected, stop the unit and contact theinstaller or service shop. Do not use a naked fire nearthe refrigerant gas. If a naked fire is utilised near therefrigerant gas, refrigerant is turned into a harmfulphosgene compound.
" WARNING:This unit is operated with refrigerant R407C, (R22option), which is non-flammable and non-poisonous.However, refrigerant itself is heavier than theatmosphere so that a floor is covered with refrigerantgas if refrigerant is leaked. Therefore, keep goodventilation to avoid choke during servicing.
# CAUTION:Check to ensure that valves are correctly opened. Ifnot opened, serious damage will occur to thecompressor due to an abnormally high pressure.
" Tools And InstrumentsPincers, Wrenches, Facilities to Transport and Place TheUnit." TransportationTransportation the unit as close to the final installationlocation as practical before unpacking is accomplished.Provide adequate facilities to place the unit on thefoundation, with sufficient consideration given to thoseindividuals performing the installation." UnpackingFollow the instructions marked on the packing.
Fig.1. Operation Space
NOTE:The height of wall shall be smaller than that of the unitcabinet.When the unit is installed at the location where the unitis encircled with walls and obstruction of free Aircirculation is suspected, construction with HITACHIregarding the operation space is recommended.
" Maximum Foundation GradientThe unit should be installed in an upright position within thegradient shown in Fig.2.
Fig.2. Maximum Foundation Gradient
15 mm
30 mm
3000 mmOverhead AirClearance
h1 h2
h1h2
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5/8 PREPARATION INITIAL CHECK
5.3. CENTRE OF GRAVITY
Centre of Gravity
Fig.3. Centre of Gravity
RCUE 40, 50, 60, 70AG1 RCUE 150, 180, 200AG1
RCUE 80, 100, 120,140AG1 RCUE 240, 270AG1
RCUE 300, 330AG1 RCUE 360, 400AG1
RCUEAG1Model
40 50 60 70 80 100 120 140 150 180 200 240 270 300 330 360 400
Location Weight Distribution (kg)1 321 333 368 372 385 401 448 453 447 489 495 513 520 530 536 540 5472 321 333 368 372 385 401 448 453 447 489 495 513 520 530 536 540 5473 459 477 527 533 385 401 448 453 447 489 495 513 520 530 536 540 5474 459 477 527 533 552 575 642 650 447 489 495 513 520 530 536 540 5475 552 575 642 650 641 701 710 513 520 530 536 540 5476 552 575 642 650 641 701 710 735 744 530 536 540 5477 641 701 710 735 744 759 769 540 5478 641 701 710 735 744 759 769 774 7849 735 744 759 769 774 78410 735 744 759 769 774 78411 759 769 774 78412 759 769 774 78413 774 78414 774 784
Operating Weight(Kg) 1,560 1,620 1,790 1,810 2,810 2,930 3,270 3,310 4,350 4,760 4,820 6,240 6,320 7,730 7,830 9,200 9,320
Location of Centre of Gravity (mm)Dimension
A 1,000 1,000 1,000 1,000 1,900 1,900 1,900 1,900 2,800 2,800 2,800 3,700 3,700 4,600 4,600 5,500 5,500
DimensionB 750 750 750 750 750 750 750 750 750 750 750 750 750 750 750 750 750
Centre of Gravity
Control Panel
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PREPARATION INITIAL CHECK 5/9
5.4. SERVICE SPACE AND FOUNDATION
RCUE 40, 50, 60, 70AG1 RCUE 150, 180, 200AG1
RCUE 80, 100, 120, 140AG1 RCUE 240, 270AG1
RCUE 300, 330AG1 Detail Of Foundation
RCUE 360, 400AG1
6-26(Mounting Holes)
Bottom Frame
Vibration-proofRubber mat(10 positions)
4-26(Mounting Holes)
Bottom Frame
Vibration-proofRubber mat(6 positions)
8-26(Mounting Holes)
Bottom Frame
Vibration-proofRubber mat(14 positions)
Bottom Frame
Vibration-proof Rubber mat(2 mats per position)
(OPTION)
Concrete
Steel Plate (1mm)
Rubber bush(OPTION)
Foundation bolt(M20)
Nut
Washer
Bottom Frame
Vibration-proofRubber mat(18 positions)
10-26(Mounting Holes)
Vibration-proofRubber mat(22 positions)
Bottom Frame
12-26(Mounting Holes)
Vibration-proofRubber mat(26 positions)
Bottom Frame
14-26(Mounting Holes)
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5/10 PREPARATION INITIAL CHECK
5.5. TRANSPORTATION5.5.1. Transportation by RiggingHook wire cables and apply field-supplied spreader bars onthe top of the unit (see figure in the next page) to preventthe unit panels from damage due to cable scratches. Theunit should remain in an upright position even duringrigging. The wire cable to rig the unit shall be three timesstronger than the unit weight. Check to ensure that therigging bolts are tightly fixed to the unit. The rigging angleshall be greater than 60 as shown. The weight of the unitis indicated on the unit label.
! DANGER:Do not stand below the unit when rigging.
# CAUTION:Put clothes between wires and the unit to avoiddamages.
Rigging shall be performed by the instruction drawingattached to the unit.(Here the example of RCUE120AG1 is shown).
+ Electrical Box
,Wire length Min.3000mm.(Field supplied)
-Spreader Bar(Field Supplied)
. Removable
/Rigging Holes(4-50)
5.5.2. Transportation by RollerWhen rolling the unit, put at least 7 equal-sized rollersunder the base frames. Each roller must carry both theouter frames, and must be suited to balance the unit (seethe centre of gravity in page).
Fig.5.Transportation by Roller.
5.5.3. DECLINING THE UNIT DURINGTRANSPORTATION.
" WARNING:Do not decline the unit more than an angle of 15 asshown in the figure during transportation. If declinedmore than an angle of 15, the unit may fall down.
Fig.6. Declining the unit.
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INSTALLATION 6/11
6. INSTALLATION
6.1. ELECTRICAL WIRING" Tools and InstrumentsOne Set of Wiring tools and Electrical Tester (Clamp Meter)
" Schedule Check
" WARNING:- Confirm that the field-selected electrical
components (main power switch, fuses, wires,conduit connections, wire terminals and others) areproperly selected according to the Electrical Datain Technical Catalogue 1, and ensure that theycomply with national and local codes.
- It is recommended that the main power switch belocked in the OFF position, to prevent againstaccidental supply of power during equipmentservicing.
- Check to ensure that an earthling wire is correctlyconnected to the unit. This wire protects from anelectric shock. Utilisation of an earth leakagebreaker is necessary.
" Main Power Wiring ProceduresConfirm that electrical power is not being supplied to theinstallation location prior to any electrical installation work.1. Install the field-supplied main switch box(es) at a
properly selected location.2. Install conduit connectors in the hole for the power
wiring.3. Lead main power wires and the earthling wire through
the connector to the screw terminals for main power andearthling in the magnetic switch box. The neutral wiresfor 380/50 Hz and 415 V/50 Hz power supply shouldalso be led through the connector.
4. Firmly connect the wires with wire terminals to unitscrew terminals R, S, T and N according to Fig. 7.
5. Connect the wires between the power source and thefield-supplied magnetic switches.
6. Consider that the main power source will not be leftturned OFF, easily, because it is necessary to energisethe oil heater even during unit stoppage.
Fg.7. Main Power Wiring.
N Name1 Main Power/Terminal Board (R,S,T,N)2 Electrical Box3 Main Power Switch4 Main Power Wiring5 Earth Wiring
" Control WiringConnect the interlock wiring and control wiring between theunit terminals and the magnetic switches for the waterpumps, according to Fig. 8 or the wiring label. The mainconnection to terminal N is required.
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6/12 INSTALLATION
Fig.8. Control Circuit Wiring.
N Name
1 In case of remote control operation this wireshall be removed.2 R Phase3 Neutral4 Low Voltage / Remote Control5 Run/Stop Signal6 Alarm Signal7 Alarm Lamp8 Pump Operation9 Pump Interlock
NOTE:1. All the setting shall be performed before Power ON.2. Remote/Local Change over Switch on Operation
Switch shall be set, to "Remote".3. Terminals 1!~/ 21! are for AC220-240V, Terminals
A!~D! are for DC24V.
+
,
-
.
/ 0
1
2
3
2,3,4,5,6 Cycles
3,4,5,6 Cycles
4,5,6 Cycles
Remote control Switch (RSW-A ) (Option)
Customer WiringIn case of Individual without Remote control Switch (6 Cycles)
ON/OFF
SETTING OF LOW VOLTAGE CONTROLMODE(No use low voltage control)
Dip Switch Setting(DSW1 of Main PCB)
NORMALMODE(No Low Voltage Control)
MODE1(Hi / Lo)
OFFON
MODE 2(Pulse)
DC24V,
5,6 Cycles
6 Cycles
LoHi
min.100msmin.100ms
Flow Switch, Differential WaterPressure Switch Option
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INSTALLATION 6/13
6.2. WATER PIPING" When Piping Connections Are Performed:1. Connect all pipes as close as possible to the unit, so
that disconnection can be easily performed whenrequired.
2. It is recommended for the piping of the chilled water inletand outlet that flexible joints be utilised, so that vibrationwill not transmit.
3. Whenever permissible, sluice valves should be utilisedfor water piping, in order to minimise flow resistance andto maintain sufficient water flow.
4. Proper inspection should be performed to check forleaking parts inside and outside the system, bycompletely opening the chilled water inlet and outletvalves to the water cooler.Additionally, equip valves to the inlet and outlet piping.Equip an air purge cock on the inlet piping and a draincock on the outlet piping. The cock handle should beremoved so that the cock can not be opened undernormal circumstances. If this cock is opened duringoperation, trouble will occur due to water blow-off.
5. Sufficiently perform insulation to keep the chilled waterpiping cool and to prevent sweating of the piping.
6. Under the condition where the ambient temperature islow in winter, there is a case where equipment andpiping will become damaged during the shutdownperiods at night, because the water in the pump orpiping will be frozen. To prevent freezing of the water, itis effective to operate the pumps.HITACHI Chiller has the pump ON/OFF operationcontrol. (see Wiring Diagram) water from piping.Additionally, in a case where measures such as waterdraining are difficult, utilise antifreeze mixture ofethylene glycol type or propylene glycol type.
7. The common water pipes (Inlet/Outlet) are fieldsupplied, only for RCUE 150 400AG1. Typical pipeworking examples are indicated on page 10.It is no necessary to install any sensor in these commonpipes for standard models.
Number connections for models:
Models Water Inlet Water OutletRCUE 40, 50, 60, 70AG1 1 1RCUE 80, 100, 120, 140AG1 1 1RCUE 150, 180, 200AG1 2 2RCUE 240, 270AG1 2 2RCUE 300, 330AG1 3 3RCUE 360, 400AG1 3 3
# CAUTION:This product is equipped with plate type heatexchanger. In the plate heat exchanger, water flowsthrough a narrow space between the plates.Therefore, there is a possibility that freezing mayoccur if foreign particles or dust are clogged. In orderto avoid this clogging. 20 mesh water strainer shallbe attached at the inlet of chilled water pipingnear the product. In case of punching metal typestrainer, mesh hole size shall be 2mm or less.
Never use the salt type antifreeze mixture, because itpossesses strong corrosion characteristics, and waterequipment will be damaged.
+ Pressure Gauge
, Strainer- Flexible Joint
. ValveWater Inlet
Water Outlet
Chiller
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6/14 INSTALLATION
6.3. TYPICAL COMMON WATER PIPING
RCUE 150, 180, 200, 240, 270AG1
RCUE 300, 330, 360, 400AG1
Field piping(Field supplied) HITACHI standard
NOTES:1. Provide a 20 mesh water strainer at the
Chiller water inlet.2. Securely connect the chilled water pipe of
each cooler in the same water system.3. Support the water pipes with stay not to
give the weight of water pipes directly tothe unit.
Dimensions according to MODELS
1 4B Victaulic connection. (Attached with unit) 6 Chilled water Inlet (6B Flange)2 Small Pipe (Attached with unit) 7 Chilled water Outlet (6B Flange)3 Electrical Box 8 Drain plug4 Thermal insulation 9 To be welded to the common water pipe5 Air purge plug 10 Water strainer (20 mesh: field supplied)
With bending connection
With bending connection
Dimensions according to MODELS
1 4B Victaulic connection. (Attached with unit) 6 Chilled water Inlet (8B Flange)2 Small Pipe (Attached with unit) 7 Chilled water Outlet (8B Flange)3 Electrical Box 8 Drain plug4 Thermal insulation 9 To be welded to the common water pipe5 Air purge plug 10 Water strainer (20 mesh: field supplied)
NOTES:3. Provide a 20 mesh water strainer at the
Chiller water inlet.4. Securely connect the chilled water pipe of
each cooler in the same water system.3. Support the water pipes with stay not to
give the weight of water pipes directly tothe unit.
Field piping(Field supplied) HITACHI standard
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INSTALLATION 6/15
6.4. MINIMUM INTERNAL SYSTEM WATER VOLUMETo ensure the cooling operation at least 5 minutes withoutinterruption, the internal chilled water volume in the pipingsystem should be greater than the minimum volume asshown below.
NOTE:Minimum internal system water volume written above isfor standard ON/OFF differential, minimum internalsystem water volume shall be increased by the setting ofdifferential.
MODEL RCUE AG1 40 50 60 70 80 100 120 140 150 180 200 240 270 300 330 360 400Minimum
Internal Water Volumem 0.64 0.58 0.70 0.78 1.28 1.16 1.40 1.56 1.74 2.10 2.34 2.80 3.12 3.50 3.90 4.20 4.68
InternalVolume in Water Cooler litre 10.8 13.3 16.1 16.1 23.9 30.7 38.2 38.2 44.0 54.3 54.3 76.4 76.4 82.2 82.2 114.6 114.6
6.5. WATER CONTROL
# CAUTION:When industrial water is applied for chilled water andcondenser water, industrial water rarely causesdeposits of scales or other foreign substances onequipment. However, well water or river water may inmost cases contain suspended solid matter, organicmatter, and scales in great quantities. Therefore,such water should be subjected to filtration orsoftening treatment with chemicals before applicationas chilled water.
It is also necessary to analyse the quality of water bychecking pH, electrical conductivity, ammonia ioncontent, sulphur content, and others, and to utiliseindustrial water only if problem is encounteredthrough these check.
The following is the recommended standard water quality.
Chilled Water System Tendency (1)
Item Circulating Water(20 C Less than) Supply Water Corrosion
Deposits ofScales
Standard QualitypH (25 C) 6.8 ~ 8.0 6.8 ~ 8.0 # #
Electrical Conductivity (mS/m) (25C){S/cm} (25 C) (2)
Less than 40Less than 400
Less than 30Less than 300 # #
Chlorine Ion (mg CI/I) Less than 50 Less than 50 #Sulphur Acid Ion (mg SO42/I) Less than 50 Less than 50 #The Amount of Acid Consumption (pH 4.8)(mg CaCO3/I) Less than 50 Less than 50
#
Total Hardness (mg CaCO3 /I) Less than 70 Less than 70 #Calcium Hardness (mg CaCO3 /I) Less than 50 Less than 50 #Silica L (mg SIO2 /I) Less than 30 Less than 30 #Reference QualityTotal Iron (mg Fe/I) Less than 1.0 Less than 0.3 # #
Total Cupper (mg Cu/I) Less than 1.0 Less than 0.1 #Sulphur Ion (mg S2/I) It shall not be detected. #Ammonium Ion (mg NH4+/I) Less than 1.0 Less than 0.1 #Remaining Chlorine (mg CI/I) Less than 0.3 Less than 0.3 #Floating Carbonic Acid (mg CO2/I) Less than 4.0 Less than 4.0 #Index of Stability 6.8 ~ 8.0 - # #
NOTE:1. The mark "#" in the table means the factor
concerned with the tendency of corrosion or depositsof scales.
2. The value showed in "{}" are for reference onlyaccording to the former unit.
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6/16 INSTALLATION
6.6. BMS CONNECTION
6.6.1. SYSTEMBMS connection is available by using HARC70-CE1,optional BMS interface unit.
One interface HARC70-CE1 can connect up to 4Chillers from a remote place using H-Link connection(Hitachi communications protocol).Protocol used by HARC70-CE1 is LonWorks. Physicalchannel connection with interface is FTT-10A.
6.6.2. SIGNALON/OFF ChillerControl
Operation Outlet Water SettingON/OFFChilled Water OutletSettingChilled Water OutletTemp.Chilled Inlet Water Temp.Alarm Codes
StateMonitoring
Operation status
6.6.3. CAUTION ON USE HARC70-CE1Please use it correctly according to the following"CAUTION ON USE.As for the following:! HARC indicate HARC70-CE1! Monitoring Device indicate upper connecting
device for supervise , and! Control Panel indicate Control panel of Chiller unit.! SNVT Indicate Standard Network Variables Types
1.Install HARC in a grounded metal box.2.Install a short circuit breaker in the power supply of
HARC.3.The transmission line between HARC and Chiller unit
should be 0.75mm2 twisted-Pair cable. If it is notused, then it cannot communicate between HARCand Chiller unit, and it does not work properly.
.3. After an abnormal transmitting occurs between
HARC and Chiller unit, and Chiller unit stops, in thecase of operation starting by the hand operation,then once turn off Chiller units power supply, andturn on the power supply. If it isnt carried out, thenChiller unit keeps the condition of transmissionalarm.
4. After an abnormal transmitting occurs betweenHARC and Chiller unit, and Chiller unit stops, in thecase of operation starting by Monitoring Device,then transmit an operation order after you transmit astop order once. If it isnt carried out, it can't start.
6. After Chiller unit, under control by HARC, is stoppedby the control panel, and operation is done from theMonitoring Device, then transmit an operation orderafter you transmit a stop order once. If it isnt carriedout, it cant start.
7. Don't set the setting temperature to Chiller unit,under control by HARC, by the control panel. If it isdone the, setting temperature is changed. And, asfor the setting temperature, which changed in thiscase, transmit to Monitoring device.
8. After the setting temperature is changed byMonitoring Device, in the case of turned off Chillerunits power supply, set the setting temperature byMonitoring device again. If it isnt carried out, thenthe setting temperature becomes to the temperatureby setting control panel.
9. If power failure occurs in Chiller unit, under controlby HARC, it may not revert to the condition beforethe power failure. Try to detect that the operationcondition of Chiller unit changed, by the MonitoringDevice. If Chiller unit stopped due to the powerfailure, then transmit an operation order from theMonitoring Device after the power supplyrestoration. And, transmit the setting temperature,mode from the Monitoring device. If it isnt carriedout, and then Chiller unit is stopping, and the settingtemperature, mode is the initialisation value byChiller unit.
10.When SNVT which is transmitted from HARC, is usedby other control device, premise that there is twominutes delay between the transmitting SNVT andthe movement Chiller unit . If it isnt premised, thena problem may occurs in the control system.
11.Don't interrupt the power supply of HARC when youuse SCPT in HARC. Even if it exceedsMaxSendTime, when SNVT is not transmitted fromHARC, and SNVT is transmitted below with thesetting value of MinSendTime, then transmit SCPTagain . If it isnt carried out, SCPT value continuesmaintaining 0.
12.If the setting of control panel change Remote toLocally, and set Remote again, then set the settingtemperature and mode from the Monitoring Deviceagain. If it does not set, then the setting temperatureand mode continue maintaining the initialisationvalue by Chiller unit.
13.When the abnormal transmitting occurs between theMonitoring Device and HARC, then the condition ofthe Monitoring Device may not correspond with thecondition of HARC. Set MaxSendTime and, try thatthe condition of the Monitoring Device correspondswith the condition of HARC in the interval ofMaxSendTime .
14.It can't be used with the except for stop signal ofinput terminal of Chiller unit .
Chiller 1 Chiller 2 Chiller 3 Chiller 4
HARC70-CE1
Upper Monitoring Devide
H-Link
LonWorks
-
INSTALLATION 6/17
6.6.4. DIMENSIONAL DRAWING ANDEXPECIFICATIONS OF HITACHIGATEWAY (MODEL HARC70-CE1)
" Structural Drawing
" Mounting Dimensions
" System Wiring
n Description Wire Size
+
Power SupplyPower Wire AC220/240V(Field Supplied)
2mm2 Shielded
,
Connection WiringBetween Chiller SignalWiring DC 5V(Field Supplied)
0.75mm2 Twisted-Pair CobleMax. Length1000m
-Ground Earth Wire(Field Supplied) -
.
Connection WireBetween LonWorksSignal Wire DC 5V(Field Supplied)
-
" Marking of Terminals
Mark IndicationPOW Red: Power Supply (AC220/240V)
IRP Green: Lighted DuringTransmission Between LONWORKS
PAC Yellow: Lighted DuringTransmission Between Chiller
POW CONTROLSYSTEM
G/W HITACHI
MCLR LON-SERV.
AC / AC / E LON / H-LINK
S201 S202 LON H-LINK
PAC
IRP
" Wiring ProceduresSection Wiring Method Remark
1220-240VPower SourceHARC70-CE1
Pow
er L
ine
Earthing Wire
Upper SystemHARC70-CE1 Non-polar
Con
trol C
ircui
t
HARC70-CE1Water Chillers Non-polar
" Network Variables and Setting
NOTE:Set and use the variables in accordance with thefollowing tables. (The variables based on "Chiller Partof LonMarkFunction Profile", however, some functionand setting range have limitation).
Terminal Cover
After OpenAfter Open
Down
ID number of NEURON CHIPOn Rear Side of Cover
Mounting by Screw
Mounting on DIN Rail
Center Line of DIN Rail
Chiller Unitn1
Chiller Unitn2
Chiller Unitn3
Chiller Unitn4
GatewayVersion 1.0
Configuration Propertiesnc60 MinSendTimenc61 MaxSendTime
_N: CHILLER UNIT N_
AC / AC / E
AC / AC / E
LON / H-LINK
LON / H-LINK
-
6/18 INSTALLATION
" Space Requirements
NOTE:1. Before operating this gateway, initial settings by a
system integrator for the local LonWorks systemare necessary
2. This gateway is designed to be connected withLonWorks network, and will not function by itselfwhen it is not connected.
3. The power lines and the signal lines shall beseparated with a minimum distance of 15cm.
4. It is necessary to set and adjust the Chillers andgateway, before operating the system.
5. "LonWork" "LonMark" are trademarks of EchelonCorporation registered in the USA and othercountries.
" SpecificationsItem Specifications
ConnectionCapacity
Maximum 4H-Link PCBs of HitachiChiller
Power Supply AC 1-PH, 220~240V10% 50/60HzPowerConsumption Maximum 10W
Ambient ConditionTemperatureRelative Humidity
0-45C10-80% (with condition of nocondensation)
Net weight 0.6kgColour Grey (Munsell 5Y7/1 our similar)Material of Box ABS resin molding material
Mounting Method Wall Mount (By 2 x M4 Screws), or onDIN Rail (35mm)
Mounting Location In Weather and Dust-Proofed ControlPanelAccessories Core x 1, Capacitor x 1Transceiver Using FTT-10A
Warranty
No warranty shall be applied for thecontrol and operation of the upper"LonWorks" side.Hitachi's liability shall cover only HitachiChillers, this gateway, and accessibilityby "LonWorks"
" Transmitting Setting (On Control PCB)Operation DSW
Before shipment, No. 1 pin of DSW10 is set at ON sideON
OFF
In case that Chiller Unit quantity in the same H-Link is 2 or more, set No. 1 pin of DSW10 at the OFFside from 2nd Unit. If only one Chiller Unit is used, no setting is required.
ONOFF
In case of applying high voltage to the terminal TB1 (E,F), the fuse on the PCB is cut.In such a case, first connect the wiring to TB1 (E,F) and then turn ON DSW-2
ONOFF
Field SCPT (*2)Watercooled
AirCooled
AirWaterHeat
Pump
Code ItemValue State nc52 nc49
WhenTransmitted
UpdateRate
DefaultService Type
4 4 4 nvi0 Control: ON/OFF (Start/Stop) Not used 0:OFF 1:ON - - - - -4 4 4 nvi1 Setting: Chiller Water Temperature (*1) - -20~25C - - - - -4 4 4 nvi2 Monitor: ON/OFF - 0:OFF, 1:ON 4 - Change occurs - Acknowledged4 4 4 nvi3 Monitor: Water Temperature Setting (*1) - 30~60C 4 4 Change occurs - Acknowledged
4 4 4 nvo4 Setting: Operation Mode -HVAC_COOL, HVAC-FREE-COOL,HVAC_HEAT.
- - - - -
- - 4 nvo5 Setting: Hot Water Temperature (*1) - 30~60C - - - - -- - - nvo6 Monitor: Capacity Control - 0~100% 4 4 Change occurs - Acknowledged4 4 4 nvo7 Monitor: Outlet Water Temperature - -20~60C 4 4 Change occurs - Acknowledged4 4 4 nvo8 Monitor: Inlet Water Temperature - -20~60C 4 4 Change occurs - Acknowledged4 4 4 nvo9 Monitor: Alarm - Alarm Code 4 - Change occurs - Acknowledged
4 4 4 nvo10 Monitor Operation Status -
Chiller Run Mode0 : Chlr_Off (OFF Mode) 2 : Chlr_Run(Run Mode )Chiller Operating Mode1 : HVAC_HEAT(Heating) 3 :HVAC_COOL(Cooling)A : HVAC_FREE_COOL (CoolingThermostat OFF)Chlr StateIn_alarm(0=Normal,1=Alarm)Run_enabled (0=operation is not available,1=operation is available )Local (0=not in local,1=in local)
4 4 Change occurs - Acknowledged
4 4 4 nc60 Minimum interval of Re-sending - 0~6553 Seconds - - - - -4 4 4 nc61 Maximum interval off sending - 0~6553 Seconds - - - - -
(*1) Inlet Step Capacity Control Unit, Outlet Water; Continuous Capacity Control Unit.
(*2) "4" indicate is applied.
-
INSTALLATION 6/19
6.7. INSTALLATION FINAL CHECKInspect the installation work according to all documentsand drawings. Table 2 shows the minimum check points.
6.7.1. Installation Work Check List
1. Is the unit solidly mounted and levelled?
2. Is the installation location adequate?
Space for Condenser Air Flow
Space for Maintenance Work
Noise and Vibration
Sunshine and Rainfall
Appearance
3. Is the water piping system adequate?
Tube Size Water Drain
Length Water Control
Flexible Joint Air Purge
Insulation Pressure Control
Strainer
Common Pipes (for 3 or 4 cycles)
4. Is the electrical wiring system adequate?
Wire Size Tightened Connections
Switch Size Operation Control Devices
Fuse Size Safety Devices
Voltage and Hz Interlock
5. Have the R, S and T phases of the water Chillercorrectly been connected to the R, S and T phases ofthe main power source?
6. Are the stop valves for the condenser liquid line open?
7. Have the packing glands and the cap nuts for the stopvalves been tightened?
8. Is BMS connected correctly and operate as decided?
-
7/20 TEST RUNNING
7. TEST RUNNING
7.1. PREPARATION" Tools and instruments
High Pressure Compound Gauge. Low PressureCompound Gauge. Electrical Tester and General Tools.
# CAUTION:Switch On the main power switch, and energise theoil heater for 12 hours before start-up, to sufficientlywarm the oil.Check to ensure that valves are correctly opened. Ifnot opened, serious damage will occur to thecompressor due to an abnormally high pressure.
7.2. TEST RUNNINGTest running should be performed as follows, when the unitis wired according to the HITACHI standard wiring label.1. Switch ON the field-supplied pump and it will be started
immediately and check the condition and operation stateof that.
2. Fully open the liquid outlet stop valve.3. Set the operation switch to "ON", and the compressor
will be started in a few minutes after this operation.
Test running should be accomplished as follows.
# CAUTION:When the unit is wired according to the HITACHIstandard wiring shown on the wiring label. Switch ONthe main power switch, and energise the oil heater for12 hours before start-up to sufficiently warm the oil.
Each rotation direction of two rotors in the compressor isfixed so that a reversal phase protection device isequipped.However, the rotation direction should be checked with afollowing method.Confirm that phases R, S and T for the compressor iscorrectly connected. The correct phase connection can bechecked by a phase sequence indicator. If not, thecompressor does not start due to activation of the reversalphase protection device.Cut the main switch and interchange two of three terminals,R, S and T on the main terminals at the field connectionside in the unit.
! Operate the pump for chilled water and other auxiliaryequipment such as fan coil units and Air handling units.
! Check to ensure that the chilled water flows sufficientlyand that other auxiliary equipment operate properly.
! Set the switch at the desired temperature.! Depress the ON push button, the condenser fans will
start to operate and the compressor will be started.! Check the rotation direction of the condenser fans.! After system operation becomes stabilised, check the
discharge and suction pressures by 7-segment oncontrol panel.
! Check to ensure that the thermostat functions properly.! Check to ensure that the control and protective devices
function properly.! Starting timer and unload-starting timer are set at five
(5), thirty (30) seconds and three (3) minutes,respectively, in accordance with operationcharacteristics. Therefore, local adjustment should beavoided.
NOTE:A loud sound occurs when this compressor is stoppedafter the normal operation. However, this soundindicates no abnormalities and stops within a fewseconds by the activation of the check valve. This soundis due to the reverse rotation of the screw rotors,resulting from the pressure difference between thedischarge and the suction pressure.
7.3. INSTRUCTIONS AFTER TEST RUNNINGWhen the test running is completed, please instructcustomers about operation and periodic maintenancemethods before leaving the unit, by using Installation,Operation and Maintenance Manual. A special attention isrequired to the following caution:
# CAUTION:Do not cut off the power source switch during theoperating season. When the power source switch iscut off, the oil heater for screw compressor is notenergised, and the compressor might be damageddue to oil foaming at starting.When the operation season starts after longdisconnection of the power source switch, please turnon the power source switch 12 hours before startingoperation.
-
CONTROLLER ADJUSTMENT 8/21
8. CONTROLLER ADJUSTMENT
$ High Cut Check (Fan Stop for Checking)
% Chilled Water Temperature Setting(STANDARD: "+07")
& Defrosting Set by Ambient Temperature (Heat Pump)(NOT AVAILABLE)
' Continuous Capacity Control Setting(STANDARD)
( Compressor starting Delay Time(STANDARD: 3 min)
) Mode Set Switch A(DEPEND ON MODEL)
* Manual Defrost (Heat Pump)(NOT AVAILABLE)
5 Optional Function B(STANDARD: ALL OFF)
6 Optional Function C(STANDARD: ALL OFF)
7 Mode Set Switch B
8 Local/Remote Changeover Switch(STANDARD: "Remote")
9 Cool/Heat Changeover Switch(STANDARD: "Cool")
: Unit Type Setting(STANDARD: RSW6 and RSW5 is "9") (RSW7: NOTAVAILABLE)
; Neutral Zone Setting(STANDARD: "3")
< Hot Water Temperature Setting for Heat Pump(NOT AVAILABLE)
= Optional Function A (Outernals signals, Self-Checking mode)(STANDARD: ALL OFF)
> Pump Operation(STANDARD: OFF)
SWITCH POSITIONON
OFF ONON
OFF OFF
LED PUSHBUTTONSWITCH
7 SEGMENTS
CoolHeat
LocalRemote
-
8/22 CONTROLLER ADJUSTMENT
8.1. CONTROL SYSTEM
Electrical Operation Control advanced HITACHI WaterChillers are as follows.
" Capacity ControlAll models are equipped with an unloading system for eachcompressor, in order to adjust the cooling capacity and toprovide precise temperature control for the chilled water,coupled with electronic thermostats.
" Control PanelON switch, OFF switch, Power Supply Lamp, OperationLamp, Alarm Lamp, Operation/Alarm Indicator for eachrefrigerant cycle and check switch are mounted in theControl Panel. The Control Panel is located at a positionwhere easy access is available. Operation/Alarm indicatorcan display individual alarm codes such as High-Cut, Low-Cut etc. this function is very useful for detecting what alarmhas occurred. Check switches are for checking chilledwater temperature and alarm occurrence data. Chilledwater temperature setting switches, ON/OFF DifferentialSetting Switches, Remote-Local Switch and so on arelocated at the rear side of Control Panel, in order not toaccess during operation.
" Operation Hour-MeterThis hour-meter indicates the sum of the compressoroperation
" Printed Circuit BoardA micro-processor, relays and electronic components aremounted on the Printed Circuit Board. Increased reliabilityis assured due to the elimination of mechanical parts andwires. This board contains various function by applyingmicro-processor as follows:
Screw Compressor Cycling Protection Circuit.The electronic timer of the screw compressor cyclingprotection (ccp) connected in the compressor control circuitdelays the screw compressor restarting period forapproximately three (3) minutes for No.1 compressor, four(4) minutes for No.2 compressor, five (5) minutes for No.3compressor, six (6) minutes for No.4 compressor.
Electronic Thermostat Circuit.The electronic thermostat senses chilled water outlettemperature, and operate capacity control solenoid valvesof HITACHI screw compressor.
Screw Compressor Reversing Protection Circuit.This circuit is composed of a reverse-phase protectiondevices, preventing reverse operation of the screwcompressor, because the screw compressor definitelycannot be operated in the wrong direction, due to themisconnection of the main power phases
Restart after Short Period Power-Failure.In the case that a power failure shorter than 2 secondsoccurred, compressors can be restarted automaticallywithin 3 minutes after power supply.
8.2. CONTROLLER ADJUSTMENTLayout of control panel of printed circuit board is shown inthe Figure of the last page.Setting functions are followings:
" Chilled Water Outlet Temperature SettingSwitch = RSW1 and RSW2
= 7C for chilled water outlet temperature is recommended.The RSW1 and RSW2 dials are already set at 7 and 0.Setting at the figures from 3 to 9 of the RSW2 dial shouldnot be permitted." Chiller Type Set Switch = RSW5, 6, 7Concerning of this series, RSW5 and RSW6 are used foridentification of the series.= The RSW5 and RSW6 are already set at 9 and 9.Setting at the figures from 0 to 8 of these dials and all ofthe figures of RSW7 should not be permitted." Neutral Zone Setting Switch = RSW8= 2 degrees is standard. The RSW8 dial is already set at 3= 2 degrees.The figures at the RSW8 dial means as follows:
Figure 0 1 2 3 4 5 6 7 8 9Band (degree) 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0
" Continuous Capacity Control Setting Switch =DSW5
Definition of Special Terms.
Load Up 1 Mode
WaterTemperature
Load Up 2 Mode
Set byDSW5,5 pin
Set byRSW8
Set byDSW5,1&2 pin
Neutral Zone
Water OutletTemperature
Water InletTemperature
Inlet Water Temp.when system isstopped withThermos Off mode
Setting Temperature
Load Down Mode
Thermo OffStandardSetting
6C
7C
9C
10C
Set byDSW5,3&4 pin
-
CONTROLLER ADJUSTMENT 8/23
" Continuos Capacity Control SettingSwitch=DSW5
Temperature Band for Stop Setting Switch= 1 degree is standard. The figure 1 and 2 of the DSW5switch are already set at figure 1 = ON side, 2 = OFF side.The locations at the figure 1 and 2 of the DSW5 mean asfollows.
Figure 1 2 1 2 1 2 1 2Location ON ON ON OFF OFF ON OFF OFFBand(degree) 0.5 1.0 1.5 2.0
Temperature Band for Restart Setting Switch= 2 degree is standard. The figure 3 and 4 of the DSW5switch are already set at figure 3 = ON side, 4 = OFF side.The locations at the figure 3 and 4 of the DSW5 mean asfollows.
Figure 3 4 3 4 3 4 3 4Location ON ON ON OFF OFF ON OFF OFFBand(degree) 1.0 2.0 3.0 4.0
Differential Temperature of Load-up 2 Mode Setting Switch= 1 degree is standard. The figure 5 of the DSW5 switch isalready set at ON side.The locations at the figure 5 of the DSW5 mean as follows.
Figure 5 5Location ON OFFBand(degree) 1.0 3.0
Output Signal Time for Load-up 1 Mode Setting Switch= 12 seconds is standard. The figure 6 of the DSW5 switchis already set at ON side.The locations at the figure 6 of the DSW5 mean as follows.
Figure 6 6Location ON OFFTime(second) 12 24
Output Signal Time for Load-up 2 and Load-down ModeSetting Switch= 2 seconds is standard. The figure 7 and 8 of the DSW5switch are already set at figure 7 = ON side,8 = ON side.The locations at the figure 7 and 8 of the DSW5 means asfollows.
Figure 7 8 7 8 7 8 7 8Location ON ON ON OFF OFF ON OFF OFFTime(second) 2 4 6 8
Interval of Output Signal Time for Load-up 2 and Load-down Mode Setting Switch.= 60 seconds is standard. The figure 9 and 10 of the DSW5switch are already set at figure 9=ON side, 10=ON side.The locations at the figure 9 and 10 o f the DSW5 mean asfollows.Figure 9 10 9 10 9 10 9 10Location ON ON ON OFF OFF ON OFF OFFTime(second) 60 90 120 30
" Setting of Compressor Cycling Protection Start= DSW2
* Time Delay Starting for Compressor Setting Switch *The compressor will be started after this setting time.= 3 minutes is standard. The figure 1 and 2 of the DSW2switch are already set at figure 1 = OFF side, 2 = OFF side.The locations at the figure 1 and 2 of the DSW2 mean asfollows.
Figure 1 2 1 2 1 2 1 2Location ON ON ON OFF OFF ON OFF OFFTime(minute) 0.5 6 10 3
" Manual Set Switch A = DSW3* Compressor Forcedly Stop Mode Setting Switch *Switches "DSW3-1" is for No.1 compressor, "DSW3-2" forNo.2, "DSW3-3" for No.3, "DSW3-4" for No.4, "DSW3-5" forNo.5 and "DSW3-6" for No.6.If necessary to stop any compressors, turn these switches(DSW3-1, DSW3-2, DSW3-3, DSW3-4, DSW3-5 andDSW3-6) to the OFF side, the compressors correspondingto these switches are turned to the OFF side will bestopped.The figures of the DSW3 switch are initially set as followsdepend on the compressor quantity.This switch is for servicing, therefore, all the compressorsshall be ON for normal operation.
Figure 1 2 3 4 5 6Location ON OFF OFF OFF OFF OFFModel 1 Comp. SystemFigure 1 2 3 4 5 6Location ON ON OFF OFF OFF OFFModel 2 Comp. System
Figure 1 2 3 4 5 6Location ON ON ON OFF OFF OFFModel 3 Comp. SystemFigure 1 2 3 4 5 6Location ON ON ON ON OFF OFFModel 4 Comp. System
Figure 1 2 3 4 5 6Location ON ON ON ON ON OFFModel 5 Comp. SystemFigure 1 2 3 4 5 6Location ON ON ON ON ON ONModel 6 Comp. System
Setting at the figures from 5 to 10 of the DSW3 switchshould not be permitted (always at OFF side).
NOTE:The figures 2, 3 and 4 of DSW3 which are Notcorresponding to the equipped compressor number arealways turned to the OFF side.
-
8/24 CONTROLLER ADJUSTMENT
" Manual Set Switch B = DSW4The figure 2 of the DSW4 switch must be turned to the ONside.The figures 3 and 7 of the DSW4 switch are initially set asfollows depend on the unit model.Setting at the figures 1, 4, 5, 6 and 8 of the DSW4 switchshould not be permitted (always at OFF side).
Figure 3 7 3 7Location ON ON ON OFFType ofChiller/Refrigerant R407C LW R22 LW
Figure 3 7 3 7Location OFF ON OFF OFFType ofChiller/Refrigerant R407C ST R22 ST
ST: Standard modelLW: Low Ambient (option)R22 (Option)
The figures 9 and 10 of DSW4 switch are for compressorsize setting as follows.
Figure 9 10 9 10 9 10Location OFF ON ON OFF ON ONCompressor 40 HP 50 HP 60 HP
" Selection Switch for Cooling/ HeatingOperation = SW8
= All model in this series are for cooling only. So thatHeating function is Not available.The SW8 Selection Switch must be turned to the upperside." Selection Switch for Local/ Remote Operation =
SW6= Remote operation is standard. So that the SW6 selectionswitch is turned to the lower side.If local operation is required, the SW6 selection switch isturned to the upper side." Selection Switch for Local/ Remote Pump
Operation = SW7= The SW7 selection switch is turned to the lower ("OFF")side as remote setting.If local operation is required, the SW7 selection switch isturned to the upper side." Anti-freeze Control by Pump Operation =
DSW6-2pinIf the ambient temperature get lower than 2 C, water pumpis operated forcedly and it protect water line againstfreezing. OFF side setting of DSW6-2pin makes this controlavailable.This control is available only when the pump is controlledby Chiller (See wiring diagram)." Other Switches = SW5, DSW6, RSW9 and
DSW1This control panel is equipped with other switches:The SW5 selection switch for chilled water/brine water, sothat this switch must be turned to the upper side(water). DSW6 and RSW9 for operation mode andsetting change of these switches are not available.It is recommended that the setting is not changed at site.Also, the DSW1 switch is equipped with. This switch isused for only checking, resulting in easy troubleshooting.
" Anti-freeze Control by Pump Operation =DSW6-2pin
If the ambient temperature get lower than 2 'C, water pumpis operated forcedly and it protect water line againstfreezing. OFF side setting of DSW6-2pin makes this controlavailable.This control is available only when the pump is controlledby Chiller(See wiring diagram).If water outlet temperature gets higher than 15C, waterpump is intermittently run with 5 minutes running and 55minutes stopping.The segment indicates 'PU' for 5 minutes in running and'88' for 55 minutes in stopping.If ambient temperature gets higher than 4C, this controlwould be cancelled.
Case 1. In case the ambient temp. decreasing
Case 2. In case the ambient temp.increasing
Continuous RunIntermittent RunSymbolsShowStopped
For example, in case that this protection works underambient temp. is 2C and chilling water is 10 ~15C, thenthe water pump is run continuously.When DSW6-2 is positioned at ON, makes this control beinvalid. In case Chiller receives the running operationduring this control, this protective control would becancelled and go back to the normal water pump control.This freeze protective control is not available underalarming due to water outlet or ambient thermistorabnormality (open or short circuit: alarm code... '12' or '22')." Other Switches = SW5, DSW6, RSW9 and
DSW1This control panel is equipped with other switches:The SW5 selection switch for chilled water/ brine water, sothat this switch must be turned to the upper side("water"). DSW6 and RSW9 for operation mode andsetting change of these switches are not available.It is recommended that the setting is not changed at site.Also, the DSW1 switch is equipped with. This switch isused for only checking, resulting in easy troubleshooting.
ChilledWaterTemp.(C)
Ambient Temp. (C)
ChilledWaterTemp.(C)
Ambient Temp. (C)
-
1/25
" Brine Option Setting = DSW4When the brine option is requested, the figure 4 of theDSW4 must be turned to the ON (UPPER) side.It is possible to set the temperature of brine outlet from-10C to 15C.
NOTE:The other information of brine option are on page 29 and32.
9. SELF-INSPECTION FUNCTIONS
9.1. ALARM INDICATIONIf the unit is operated under abnormal conditions, an alarmcode(refer to the table below) is indicated and the "Alarm"LED lamp is lighted.Function of 7-Segment Light Emitted Diode on ControlPanel is as shown in the table below.
CodeNo.1cycle
No.2cycle
No.3cycle
No.4cycle
No.5cycle
No.6cycle
Content
C1-H1 C2-H2 C3-H3 C4-H4 C5-H5 C6-H6 Activation of High Pressure Switch
C1-L1 C2-L2 C3-L3 C4-L4 C5-L5 C6-L6 Excessively Low Pressure
C1-t1 C2-t2 C3-t3 C4-t4 C5-t5 C6-t6 Low Pressure Protection with Suction Gas Thermistor
C1-41 C2-42 C3-43 C4-44 C5-45 C6-46 Activation of Fan Motor Internal Thermostat
C1-51 C2-52 C3-53 C4-54 C5-55 C6-56 Activation of Thermal Relay for Compressor
C1-71 C2-72 C3-73 C4-74 C5-75 C6-76 Activation of Compressor Internal Thermostat
C1-61 C2-62 C3-63 C4-64 C5-65 C6-66 Activation of Discharge Gas Thermostat
C1-o1 C2-o2 C3-o3 C4-o4 C5-o5 C6-o6 Activation of Differential Pressure Control
C1-28 C2-28 C3-28 C4-28 C5-28 C6-28 Failure of Suction Gas Pressure Sensor (Open / Short)
C1-27 C2-27 C3-27 C4-27 C5-27 C6-27 Failure of Discharge Gas Pressure Sensor (Open / Short)
C1-26 C2-26 C3-26 C4-26 C5-26 C6-26 Failure of Suction Gas Thermistor (Open / Short)
C1-21 C2-21 C3-21 C4-21 C5-21 C6-21 Failure of Cooler Inlet Refrigerant Thermistor (Open/Short)
C1-23 C2-23 C3-23 C4-23 C5-23 C6-23 Failure of Discharge Gas Thermistor (Open / Short)
C1-24 C2-24 C3-24 C4-24 C5-24 C6-24 Failure of Thermistor set before Expansion Valve (Open / Short)
C1-P6 C2-P6 C3-P6 C4-P6 C5-P6 C6-P6 Freezing Protection Control by Cooler Inlet Refrigerant Temperature
6E-6E Alarm of Water Failure (Differential Water Pressure Switch Option)
AP-AP Activation of Additional Protection Device
13-13 Freezing Protection
C1-05 C2-05 C3-05 C4-05 C5-05 C6-05 Phase Abnormally
C1-5P C2-5P C3-5P C4-5P C5-5P C6-5P No Signal Feedback from Water Pump"C1"-"Pu"
"C2"-"Pu"
"C3"-"Pu"
"C4"-"Pu"
"C5"-"Pu"
"C6"-"Pu" Alarm of Excessively High Water Temperature
40-40 Malfunction
11-11 Failure of Water Inlet Temperature Thermistor (Open / Short)
12-12 Failure of Water Outlet1 Temperature Thermistor (Open / Short)
15-15 Failure of Water Outlet2 Temperature Thermistor (Open / Short)
16-16 Failure of Water Outlet3 Temperature Thermistor (Open / Short)
22-22 Failure of Ambient Temperature Thermistor (Open / Short)" " - " " : Flickering. XX - XX : SEG1-SEG2
7 Segments onControl Panel?? ??
SEG.1 SEG.2
-
9/26 SELF-INSPECTION FUNCTIONS
9.2. NORMAL INDICATIONIf the unit is operated under a normal operation condition,the operation code (refer to the table below) is indicated on7-Segment LED's of the control panel.
CodeNo.1cycle
No.2cycle
No.3cycle
No.4cycle
No.5cycle
No.6cycle
Content
C1-88 C2-88 C3-88 C4-88 C5-88 C6-88 Power Supply, After Stoppage
C1-Co C2-Co C3-Co C4-Co C5-Co C6-Co Cooling Operation
C1-oF C2-oF C3-oF C4-oF C5-oF C6-oF Stoppage by Thermo-Off
C1-Pu C2-Pu C3-Pu C4-Pu C5-Pu C6-Pu Pump Operation Only, Warning of Pump Feedback
9.3. FUNCTION FOR INDICATION OF OPERATION CONDITION" Function for Indication of Operation ConditionThe setting temperature, chilled water temperature sensedat the thermistor, the setting differential temperature andthe last alarm code are digitally indicated on the controlpanel.
NOTE:Each indication mode shall be changed from the normal mode.
+ Press the check "" and "" switchessimultaneously for more than 3 sec.It is changed to the normal mode bypressing the "" and "" switchessimultaneously for more than 3 sec.again.
, Press the check "" switch for morethan 3 sec.It is changed to the normal mode bypressing the "" switch for more than3 sec. again.
- Press the check "" switch for morethan 3 seconds.It is available only while the ""switch is pressed. It changes tonormal mode after 3 secondsautomatically.
" Indication Mode of Alarm Occurrence Data ++++The content of abnormal stoppage including activation ofsafety devices is memorised and indicated on the conpanelAlarm Occurrence Data (Max.10 data)
@ A B C
D B E B
@ A F
D G E G
NOTE:
If an abnormal operation is occurred under thisindication mode, this indication mode is changed to thealarm indication mode.
" Capacity Control Indication ----
Example
D B H I
D G @ H
D J K C
D B L L
The Alarm CodeOccurrence Data
Normal OperationCondition
"88" "Co" "oF"
Capacity ControlIndication
CheckingIndication,+
-
In case of No. 1 cycle highpressure alarm occurrence
In case of No. 2 cycle highpressure alarm occurrence
No.1 Comp Load Up
No.2 Comp Hold
No.3 Comp Load Down
No.1 Comp Thermo-offStarting Control
-
SELF-INSPECTION FUNCTIONS 9/27
" Checking Indication ,,,,
Alarm Code Occurred Last (no alarm) C C C C
Discharge Pressure (MPa) D B M K B F G
(N 1 Cycle IK = 1.92 MPa)Discharge Pressure (MPa) D G M K B F G
Discharge Pressure (MPa) D J M K B F G
Discharge Pressure (MPa) D N M K B F G
Discharge Pressure (MPa) D O M K B F G
Discharge Pressure (MPa) D P M K B F G
Suction Pressure (MPa) D B M Q C N G
(N 1 Cycle IQ = 0.42 MPa)Suction Pressure (MPa) D G M Q C N G
Suction Pressure (MPa) D J M Q C N G
Suction Pressure (MPa) D N M Q C N G
Suction Pressure (MPa) D O M Q C N G
Suction Pressure (MPa) D P M Q C N G
Discharge Gas Temperature (Option) (C) D B R K ? G
(N 1 Cycle RK = 82C)Discharge Gas Temperature (Option) (C) D G R K ? G
Discharge Gas Temperature (Option) (C) D J R K ? G
Discharge Gas Temperature (Option) (C) D N R K ? G
Discharge Gas Temperature (Option) (C) D O R K ? G
Discharge Gas Temperature (Option) (C) D P R K ? G
Suction Gas Temperature (C) D B R Q L G
(N 1 Cycle RQ = -2C)
Back to "CPU ROM number"
-
9/28 SELF-INSPECTION FUNCTIONS
Suction Gas Temperature (C) D G R Q L G
Suction Gas Temperature (C) D J R Q L G
Suction Gas Temperature (C) D N R Q L G
Suction Gas Temperature (C) D O R Q L G
Suction Gas Temperature (C) D P R Q L G
Liquid Temperature (Option) (C) D B R S J O N
Liquid Temperature (Option) (C) D G R S J O N
Liquid Temperature (Option) (C) D J R S J O N
Liquid Temperature (Option) (C) D N R S J O N
Liquid Temperature (Option) (C) D O R S J O N
Liquid Temperature (Option) (C) D P R S J O N
Water Inlet Temperature (C) D T U B G
Average Water Outlet Temperature (C) D A U V
Water Outlet 1 Temperature (C) D A U B V
Water Outlet 2 Temperature (C) D A U G P
Water Outlet 3 Temperature (C) D A U J V
Setting Water Outlet Temperature (C) R Q D V
Setting Neutral Zone Temperature Difference (C) K W G
Ambient Temperature (C) R X J O
CPU ROM Number S @ C G Y J
(ROM N = C-203)Return to "Alarm Code Ocurred List"
(N 1 Cycle RS1 = 36)(N 1 Cycle RS2 = 4)
-
CO
NTR
OL
SY
STE
M10
/29
10. C
ON
TRO
L S
YS
TEM
Con
trol
Sta
ge
Con
trol
Dev
ices
Sta
rtin
g C
ontr
olC
apac
ity C
ontr
olS
afet
y D
evic
esS
hut D
own
Mai
n Po
wer
Swi
tch
MI
OFF
ON
--
--
--
--
--
--
--
-O
NO
NO
NO
FFO
pera
tion
Switc
hPB
S-
-O
N-
--
--
--
--
--
--
OFF
ON
OFF
--
Load
Up
--
--
-!
!-
--
--
!-
--
--
--
-Ne
utra
l-
--
--
--
!-
--
--
!!
!-
!-
--
Cont
rolle
rLo
ad D
own
--
--
--
--
!!
--
--
--
--
--
-Sa
fety
Dev
ices
No.1
CLS
CLS
CLS
CLS
CLS
CLS
CLS
CLS
CLS
CLS
CLS
CLS
CLS
CLS
CLS
OPN
CLS
CLS
CLS
CLS
CLS
Chille
d W
ater
Pum
pCP
UEO
FFO
FFO
NO
NO
NO
NO
NO
NO
NO
NO
NO
NO
NO
NO
NO
NO
NO
NO
NO
FFO
FFPo
wer
Sup
ply
Indi
cato
rO
FFO
NO
NO
NO
NO
NO
NO
NO
NO
NO
NO
NO
NO
NO
NO
NO
NO
NO
NO
NO
FFO
pera
tion
Indi
cato
rO
FFO
FFO
NO
NO
NO
NO
NO
NO
NO
NO
NO
NO
NO
NO
NO
FFO
FFO
NO
FFO
FFO
FFAl
arm
Indi
cato
rO
FFO
FFO
FFO
FFO
FFO
FFO
FFO
FFO
FFO
FFO
FFO
FFO
FFO
FFO
FFO
NO
FFO
FFO
FFO
FFO
FFO
il He
ater
CH1
OFF
ON
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
ON
OFF
OFF
OFF
OFF
ON
ON
OFF
ON
ON
OFF
MC1
STA
DLT
DLT
DLT
DLT
DLT
DLT
DTA
DLT
DLT
DLT
DLT
OFF
OFF
OFF
(ULD
)(U
LD)
(ULD
)(F
LD)
(FLD
)(U
LD)
(ULD
)O
FF(U
LD)
(ULD
)(U
LD)
(ULD
)O
FFO
FF(U
LD)
OFF
OFF
OFF
Com
pres
sor M
otor
33%
33%
33~9
9%10
0%10
0%33
~99%
33%
33%
33~9
9%33
~99%
33~9
9%33
~99%
Fan
Mot
orM
F11~
14O
FFO
FFO
N (Q
'ty D
epen
ds o
n "F
an C
yclin
g Co
ntro
l")O
FFO
FFO
NO
FFO
FFO
FFSV
11O
FFO
FFO
NO
NO
NO
FFO
FFO
FFO
FFO
FFO
NO
NO
FFO
FFO
FFO
FFO
FFO
FFO
FFO
FFO
FFSV
12O
FFO
FFO
FFO
FFO
FFO
FFO
FFO
FFO
NO
NO
FFO
FFO
FFO
FFO
FFO
FFO
FFO
FFO
FFO
FFO
FFSo
leno
id V
alve
SV13
OFF
OFF
OFF
OFF
OFF
ON
ON
OFF
OFF
OFF
OFF
OFF
ON
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
Tim
e Sc
hedu
le
Standard Operation Sequence RCUE 40AG1, 50AG1
The
Com
pres
sor w
hich
sta
rted
final
ly w
ill be
rest
arte
d fir
st.
5sec
.3m
in.
30se
c.
Min
imun
3m
in.
10se
c.
CLS
Clo
seO
PN: O
pen
STA:
Sta
rD
LT D
elta
ULD
: Unl
oad
FLD
: Ful
l Loa
d!
: Cha
ngin
g C
ompr
esso
r Loa
d!
: Kee
ping
Com
pres
sor L
oad
10. CONTROL SYSTEM
10/29CONTROL SYSTEM
-
10/3
0C
ON
TRO
L S
YS
TEM
Con
trol
Sta
ge
Con
trol
Dev
ices
Sta
rtin
g C
ontr
olC
apac
ity C
ontr
olS
afet
y D
evic
esS
hut D
own
Mai
n Po
wer
Swi
tch
MI
OFF
ON
--
--
--
--
--
--
--
-O
NO
NO
NO
FFO
pera
tion
Switc
hPB
S-
-O
N-
--
--
--
--
--
--
OFF
ON
OFF
--
Load
Up
--
--
-!
!-
--
--
!-
--
--
--
-Ne
utra
l-
--
--
--
!-
--
--
!!
!-
!-
--
Cont
rolle
rLo
ad D
own
--
--
--
--
!!
--
--
--
--
--
-Sa
fety
Dev
ices
No.1
CLS
CLS
CLS
CLS
CLS
CLS
CLS
CLS
CLS
CLS
CLS
CLS
CLS
CLS
CLS
OPN
CLS
CLS
CLS
CLS
CLS
Chille
d W
ater
Pum
pCP
UEO
FFO
FFO
NO
NO
NO
NO
NO
NO
NO
NO
NO
NO
NO
NO
NO
NO
NO
NO
NO
FFO
FFPo
wer
Sup
ply
Indi
cato
rO
FFO
NO
NO
NO
NO
NO
NO
NO
NO
NO
NO
NO
NO
NO
NO
NO
NO
NO
NO
NO
FFO
pera
tion
Indi
cato
rO
FFO
FFO
NO
NO
NO
NO
NO
NO
NO
NO
NO
NO
NO
NO
NO
FFO
FFO
NO
FFO
FFO
FFAl
arm
Indi
cato
rO
FFO
FFO
FFO
FFO
FFO
FFO
FFO
FFO
FFO
FFO
FFO
FFO
FFO
FFO
FFO
NO
FFO
FFO
FFO
FFO
FFO
il He
ater
CH1
OFF
ON
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
ON
OFF
OFF
OFF
OFF
ON
ON
OFF
ON
ON
OFF
MC1
STA
DLT
DLT
DLT
DLT
DLT
DLT
DTA
DLT
DLT
DLT
DLT
OFF
OFF
OFF
(ULD
)(U
LD)
(ULD
)(F
LD)
(FLD
)(U
LD)
(ULD
)O
FF(U
LD)
(ULD
)(U
LD)
(ULD
)O
FFO
FF(U
LD)
OFF
OFF
OFF
Com
pres
sor M
otor
25%
25%
25~9
9%10
0%10
0%25
~99%
25%
25%
25~9
9%25
~99%
25~9
9%25
~99%
Fan
Mot
orM
F11~
14O
FFO
FFO
N (Q
'ty D
epen
ds o
n "F
an C
yclin
g Co
ntro
l")O
FFO
FFO
NO
FFO
FFO
FFSV
11O
FFO
FFO
NO
NO
NO
FFO
FFO
FFO
FFO
FFO
NO
NO
FFO
FFO
FFO
FFO
FFO
FFO
FFO
FFO
FFSV
12O
FFO
FFO
FFO
FFO
FFO
FFO
FFO
FFO
NO
NO
FFO
FFO
FFO
FFO
FFO
FFO
FFO
FFO
FFO
FFO
FFSo
leno
id V
alve
SV13
OFF
OFF
OFF
OFF
OFF
ON
ON
OFF
OFF
OFF
OFF
OFF
ON
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
Tim
e Sc
hedu
le
10/30
Standard Operation Sequence RCUE 60AG1, 70AG1
The
Com
pres
sor w
hich
sta
rted
final
ly w
ill be
rest
arte
d fir
st.
5sec
.3m
in.
30se
c.
Min
imun
3m
in.
10se
c.
CLS
Clo
seO
PN: O
pen
STA:
Sta
rD
LT D
elta
ULD
: Unl
oad
FLD
: Ful
l Loa
d!
: Cha
ngin
g C
ompr
esso
r Loa
d!
: Kee
ping
Com
pres
sor L
oad
CONTROL SYSTEM
-
CO
NTR
OL
SY
STE
M10
/31
Con
trol
Sta
ge
Con
trol
Dev
ices
Sta
rtin
g C
ontr
olC
apac
ity C
ontr
olS
afet
y D
evic
esS
hut D
own
Mai
n Po
wer
Swi
tch
MI
OFF
ON
--
--
--
--
--
--
--
--
--
ON
ON
ON
OFF
Ope
ratio
n Sw
itch
PBS
--
ON
--
--
--
--
--
--
--
--
OFF
ON
OFF
--
Load
Up
--
--
--
-!
!-
--
--
!-
--
!-
--
--
Neut
ral
--
--
--
--
-!
--
--
-!
!!
--
!-
--
Cont
rolle
rLo
ad D
own
--
--
--
--
--
!!
--
--
--
--
--
--
No.1
CLS
CLS
CLS
CLS
CLS
CLS
CLS
CLS
CLS
CLS
CLS
CLS
CLS
CLS
CLS
CLS
CLS
OPN
OPN
CLS
CLS
CLS
CLS
CLS
Safe
ty D
evic
esNo
.2CL
SCL
SCL
SCL
SCL
SCL
SCL
SCL
SCL
SCL
SCL
SCL
SCL
SCL
SCL
SCL
SCL
SCL
SO
PNCL
SCL
SCL
SCL
SCL
SCh
illed
Wat
er P
ump
CPUE
OFF
OFF
ON
ON
ON
ON
ON
ON
ON
ON
ON
ON
ON
ON
ON
ON
ON
ON
ON
ON
ON
ON
OFF
OFF
Pow
er S
uppl
y In
dica
tor
OFF
ON
ON
ON
ON
ON
ON
ON
ON
ON
ON
ON
ON
ON
ON
ON
ON
ON
ON
ON
ON
ON
ON
OFF
Ope
ratio
n In
dica
tor
OFF
OFF
ON
ON
ON
ON
ON
ON
ON
ON
ON
ON
ON
ON
ON
ON
ON
ON
OFF
OFF
ON
OFF
OFF
OFF
Alar
m In
dica
tor
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
ON
ON
OFF
OFF
OFF
OFF
OFF
CH1
OFF
ON
ON
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
ON
OFF
OFF
OFF
OFF
ON
ON
ON
OFF
ON
ON
OFF
Oil
Heat
erCH
2O
FFO
NO
NO
NO
NO
FFO
FFO
FFO
FFO
FFO
FFO
FFO
NO
FFO
FFO
FFO
FFO
FFO
NO
NO
FFO
NO
NO
FFST
ADL
TDL
TDL
TDL
TDL
TDL
TDL
TDL
TDT
ADL
TDL
TDL
TDL
T(U
LD)
(ULD
)(U
LD)
(ULD
)(U
LD)
(FLD
)(F
LD)
(ULD
)(U
LD)
(ULD
)(U
LD)
(ULD
)(U
LD)
(ULD
)M
C1O
FFO
FFO
FF33
%33
%33
%33
%33
~99%
100%
100%
33~9
9%33
%O
FF33
%33
~99%
33~9
9%33
~99%
OFF
OFF
OFF
33~9
9%O
FFO
FFO
FF
STA
DLT
DLT
DLT
DLT
DLT
DLT
DTA
DLT
DLT
DLT
DLT
DLT
(ULD
)(U
LD)
(ULD
)(F
LD)
(FLD
)(U
LD)
(ULD
)(U
LD)
(ULD
)(U
LD)
(ULD
)(U
LD)
(ULD
)
Com
pres
sor M
otor
MC2
OFF
OFF
OFF
OFF
OFF
33%
33%
33~9
9%10
0%10
0%33
~99%
33%
OFF
33%
33~9
9%33
~99%
33~9
9%33
~99%
OFF
OFF
33~9
9%O
FFO
FFO
FF
MF1
1~14
OFF
OFF
ON
(Q'ty
Dep
ends
on
"Fan
Cyc
ling
Cont
rol")
OFF
OFF
ON
OFF
OFF
OFF
Fan
Mot
orM
F21~
24O
FFO
FFO
N (Q
'ty D
epen
ds o
n "F
an C
yclin
g Co
ntro
l")O
FFO
FFO
NO
FFO
FFO
FFSV
11O
FFO
FFO
NO
NO
NO
NO
NO
FFO
FFO
FFO
FFO
FFO
NO
NO
FFO
FFO
FFO
FFO
FFO
FFO
FFO
FFO
FFO
FFSV
12O
FFO
FFO
FFO
FFO
FFO
FFO
FFO
FFO
FFO
FFO
NO
NO
FFO
FFO
FFO
FFO
FFO
FFO
FFO
FFO
FFO
FFO
FFO
FFSV
13O
FFO
FFO
FFO
FFO
FFO
FFO
FFO
NO
NO
FFO
FFO
FFO
FFO
FFO
NO
FFO
FFO
FFO
FFO
FFO
FFO
FFO
FFO
FFSV
21O
FFO
FFO
NO
NO
NO
NO
NO
FFO
FFO
FFO
FFO
FFO
NO
NO
FFO
FFO
FFO
FFO
FFO
FFO
FFO
FFO
FFO
FFSV
22O
FFO
FFO
FFO
FFO
FFO
FFO
FFO
FFO
FFO
FFO
NO
NO
FFO
FFO
FFO
FFO
FFO
FFO
FFO
FFO
FFO
FFO
FFO
FF
Sole
noid
Val
ve
SV23
OFF
OFF
OFF
OFF
OFF
OFF
OFF
ON
ON
OFF
OFF
OFF
OFF
OFF
ON
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
Tim
e Sc
hedu
le
Standard Operation Sequence RCUE 80AG1, 100AG1
3min
.5s
ec.
5sec
.30
sec.
Min
imun
3m
in.
10se
c.60
sec
The
Com
pres
sor w
hich
sta
rted
final
ly w
ill be
rest
arte
d fir
st.
CLS
Clo
seO
PN: O
pen
STA:
Sta
rD
LT D
elta
ULD
: Unl
oad
FLD
: Ful
l Loa
d!
: Cha
ngin
g C
ompr
esso
r Loa
d!
: Kee
ping
Com
pres
sor L
oad
10/31CONTROL SYSTEM
-
10/3
2C
ON