Air Cooled Inverter Water Chillers - Daikin
EWAD TZ-SS 170 710 kWEWAD TZ-SR 170 710 kWEWAD TZ-XS 180 682 kWEWAD TZ-XR 180 682 kWEWAD TZ-PS 185 639 kWEWAD TZ-PR 185 639 kW- SILVER- SILVER- GOLD- GOLD- PLATINUM- PLATINUMAir cooled inverter water chillerOPERATIONMANUALOPERATION MANUALAir cooled inverter water chillersD-EOMAC00909-14ENEWAD TZ-SS - Screw - R134a - 170 710 kW - SILVEREWAD TZ-SR - Screw - R134a - 170 710 kW - SILVEREWAD TZ-XS - Screw - R134a - 180 682 kW - GOLDEWAD TZ-XR - Screw - R134a - 180 682 kW - GOLDEWAD TZ-PS - Screw - R134a - 185 639 kW - PLATINUMEWAD TZ-PR - Screw - R134a - 185 639 kW - PLATINUMEWAD TZ 170-710Air cooled inverter water chillerD-EOMAC00909-14ENOperation Manual1
EWAD TZ-SS 170 710 kWEWAD TZ-SR 170 710 kWEWAD TZ-XS 180 682 kWEWAD TZ-XR 180 682 kWEWAD TZ-PS 185 639 kWEWAD TZ-PR 185 639 kW- SILVER- SILVER- GOLD- GOLD- PLATINUM- PLATINUMAir cooled inverter water chillerOPERATIONMANUALTable of Contents1SAFETY CONSIDERATIONS . 61.1General . 61.2Avoid electrocution. 61.3Safety Devices . 71.3.1General safety devices . 71.3.2Circuit safety devices . 71.3.3Component safety devices . 71.4Available sensors. 91.4.1Pressure transducers . 91.4.2Temperature sensors . 91.4.3Thermistors . 91.4.4Leak detectors . 91.5Available Controls . 91.5.1Evaporator pumps . 91.5.2Compressors . 91.5.3Expansion Valve . 101.6Customer Terminal Block Connections . 101.6.123GENERAL DESCRIPTION. 132.1General . 132.2Abbreviations used . 132.3Controller Operating Limits . 142.4Controller Architecture . 142.5Communication Modules . 15Using the Controller . 163.1General Recommendation . 163.2Navigating. 173.3Passwords . 173.4Editing. 183.5Basic Control System Diagnostic . 193.6Controller maintenance . 213.7Optional Remote User Interface. 21Operation Manual2General description . 10EWAD TZ170-710Air cooled inverter water chillerD-EOMAC00909-14EN
EWAD TZ-SS 170 710 kWEWAD TZ-SR 170 710 kWEWAD TZ-XS 180 682 kWEWAD TZ-XR 180 682 kWEWAD TZ-PS 185 639 kWEWAD TZ-PR 185 639 kW3.84- SILVER- SILVER- GOLD- GOLD- PLATINUM- PLATINUMAir cooled inverter water chillerOPERATIONMANUALEmbedded Web Interface. 22Menu Structure . 244.1Main Menu. 244.2Quick Menu. 244.3Quick Setup . 254.4View/Set Unit . 254.4.1Status/Settings . 254.4.2Set-Up . 264.4.3Temperatures. 264.4.4Vfd Settings . 274.4.5Date/Time/Schedules. 274.4.6Power Conservation . 274.4.7Configuration . 284.4.8Pump VFD . 284.4.9Setup for communication modules . 284.4.10Electrical Data. 284.4.11Controller IP setup . 28Check with IT Department on how to set these properties in order to connect the Microtech IIIto the local network . 294.4.12Design Conditions. 294.4.13Alarm Limits . 294.4.14Calibrate Sensors . 294.4.15Menu Password . 304.5View/Set Circuit . 304.5.1Data. 304.5.2Status/Settings . 304.5.3Comp1 . 314.5.4Condenser . 324.5.5EXV . 324.5.6Configuration . 324.5.7Calibrate Sensors . 324.6Time until restart . 334.7Alarms . 334.8Scheduled Maintenance. 334.9Review Operation . 33EWAD TZ 170-710Air cooled inverter water chillerD-EOMAC00909-14ENOperation Manual3
EWAD TZ-SS 170 710 kWEWAD TZ-SR 170 710 kWEWAD TZ-XS 180 682 kWEWAD TZ-XR 180 682 kWEWAD TZ-PS 185 639 kWEWAD TZ-PR 185 639 kW4.105OPERATIONMANUALManual Control. 33Unit . 344.10.2Circuit #1 (Circuit #2 if present) . 344.11Commission Unit . 354.12About this Chiller . 35Working with this unit . 36Unit Setup . 365.1.1Language Setting . 365.1.2Control Source. 365.1.3Available Mode Setting . 365.1.4Temperature Settings . 375.1.5Alarm Settings . 385.1.6Evap Pump Settings (optional). 395.1.7Power Conservation . 395.1.8Date/Time Schedules. 415.2Unit/Circuit Start-up . 425.2.1Prepare the unit to start . 425.2.2Preparing circuits to start . 445.3Compressor Capacity Control . 465.4Condensation Control . 485.4.1Fan Settings. 495.4.2Fan VFD Settings. 495.5EXV Control . 505.6Economizer Control . 515.7Liquid Injection Control . 525.8Variable Volume Ratio Control . 52Alarms . 536.1.1Unit Events . 536.1.2Unit Warning Alarms . 536.1.3Unit Problems . 546.1.4Unit Pumpdown Stop Alarms . 556.1.5Unit Rapid Stop Alarms. 566.1.6Circuit Warning Alarms . 596.1.7Circuit Pumpdown Stop Alarms . 596.1.8Circuit Rapid Stop Alarms . 61EWAD TZ170-710Operation Manual4Air cooled inverter water chiller4.10.15.16- SILVER- SILVER- GOLD- GOLD- PLATINUM- PLATINUMAir cooled inverter water chillerD-EOMAC00909-14EN
EWAD TZ-SS 170 710 kWEWAD TZ-SR 170 710 kWEWAD TZ-XS 180 682 kWEWAD TZ-XR 180 682 kWEWAD TZ-PS 185 639 kWEWAD TZ-PR 185 639 kW7- SILVER- SILVER- GOLD- GOLD- PLATINUM- PLATINUMAir cooled inverter water chillerOPERATIONMANUALOptions . 707.1Total Heat Recovery (Optional) . 707.2Energy Meter including Current Limit (Optional). 707.3Rapid Restart (Optional) . 717.4Inverter Pump Kit (Optional). 727.5Pump Speed Control (Optional) . 737.5.1Dual Setpoint Fixed Pump Speed Control . 73EWAD TZ 170-710Air cooled inverter water chillerD-EOMAC00909-14ENOperation Manual5
EWAD TZ-SS 170 710 kWEWAD TZ-SR 170 710 kWEWAD TZ-XS 180 682 kWEWAD TZ-XR 180 682 kWEWAD TZ-PS 185 639 kWEWAD TZ-PR 185 639 kW- SILVER- SILVER- GOLD- GOLD- PLATINUM- PLATINUMAir cooled inverter water chillerOPERATIONMANUAL1 SAFETY CONSIDERATIONS1.1 GeneralInstallation, start-up and servicing of equipment can be hazardous if certain factors particular to theinstallation are not considered: operating pressures, presence of electrical components andvoltages and the installation site (elevated plinths and built-up up structures). Only properlyqualified installation engineers and highly qualified installers and technicians, fully trained for theproduct, are authorised to install and start-up the equipment safely.During all servicing operations, all instructions and recommendations, which appear in theinstallation and service instructions for the product, as well as on tags and labels fixed to theequipment and components and accompanying parts supplied separately, must be read,understood and followed.Apply all standard safety codes and practices.Wear safety glasses and gloves.Use the proper tools to move heavy objects. Move units carefully and set them down gently.1.2 Avoid electrocutionOnly personnel qualified in accordance with IEC (International Electrotechnical Commission)recommendations may be permitted access to electrical components. It is particularlyrecommended that all sources of electricity to the unit be shut off before any work is begun. Shutoff main power supply at the main circuit breaker or isolator.IMPORTANT: This equipment uses and emits electromagnetic signals. Tests have shownthat the equipment conforms to all applicable codes with respect to electromagneticcompatibility.RISK OF ELECTROCUTION: Even when the main circuit breaker or isolator is switchedoff, certain circuits may still be energised, since they may be connected to a separatepower source.RISK OF BURNS: Electrical currents cause components to get hot either temporarily orpermanently. Handle power cable, electrical cables and conduits, terminal box coversand motor frames with great care.ATTENTION: In accordance with the operating conditions the fans can be cleanedperiodically. A fan can start at any time, even if the unit has been shut down.Operation Manual6EWAD TZ170-710Air cooled inverter water chillerD-EOMAC00909-14EN
EWAD TZ-SS 170 710 kWEWAD TZ-SR 170 710 kWEWAD TZ-XS 180 682 kWEWAD TZ-XR 180 682 kWEWAD TZ-PS 185 639 kWEWAD TZ-PR 185 639 kW- SILVER- SILVER- GOLD- GOLD- PLATINUM- PLATINUMAir cooled inverter water chillerOPERATIONMANUAL1.3 Safety DevicesEach unit is equipped with safety devices of three different kinds:1.3.1 General safety devicesSafeties of this level of severity will shut down all the circuits and stop the entire unit. When ageneral safety device will occur a manual intervention on the unit will be required in order to reestablish the normal operability of the machine. There are exceptions to this general rule in case ofalarms linked to temporary abnormal conditions. Emergency StopA push button is placed on a door of the unit electrical panel. The button is highlighted by a redcolor in yellow background. A manual pressure of the emergency stop button stops all loads fromrotating, thus preventing any accident which may occur. An alarm is also generated by the UnitController. Releasing the emergency stop button enables the unit, which may be restarted onlyafter the alarm has been cleared on the controller.The emergency stop causes all motors to stop, but does not switch off power to the unit. Do notservice or operate on the unit without having switched off the main switch.1.3.2 Circuit safety devicesSafety of this level of severity will shut down the circuit they protect. The remaining circuits willkeep running.1.3.3 Component safety devicesSafety of this level of severity will shut down a component against abnormal running condition thatcould create permanent damages to it. An overview of the protecting devices is listed below: Overcurrent/Overload ProtectionsOvercurrent/overload devices protect electrical motors used on compressors, fans and pumpsin case of overload or short circuit. In case of inverter-driven motors, overload and overcurrentprotection is integrated in the electronic drives. A further protection from short circuit isaccomplished by fuses or circuit breakers installed upstream each load or group of loads. Overtemperature ProtectionsCompressor and fan electrical motors are also protected from overheating by thermistorsimmersed into motor windings. Should the winding temperature exceed a fixed threshold, thethermistors will trip and cause the motor to stop. High Temperature Alarm is recorded in the UnitController only in case of compressors. Alarm must be reset from the controller.Do not operate on a faulty fan before the main switch has been shut off. Overtemperature protectionis auto-reset, therefore a fan may restart automatically if temperature conditions allow it. Phase reversal, under/over voltage, ground fault protectionsWhen one of those alarms occurs the unit is immediately stopped or even inhibited to start. Thealarms clear automatically once the problem is fixed. This auto clear logic allows the unit toautomatically recover in case of temporary conditions where the supply voltage reaches theupper or lower limit set on the protection device. In the other two cases a manual interventionOperation ManualEWAD TZ 170-710Air cooled inverter water chillerD-EOMAC00909-14EN7
EWAD TZ-SS 170 710 kWEWAD TZ-SR 170 710 kWEWAD TZ-XS 180 682 kWEWAD TZ-XR 180 682 kWEWAD TZ-PS 185 639 kWEWAD TZ-PR 185 639 kW- SILVER- SILVER- GOLD- GOLD- PLATINUM- PLATINUMAir cooled inverter water chillerOPERATIONMANUALon the unit will be required in order to solve the problem. In case of a phase reversal alarm twophases requires to be inverted.In the event of a power supply outage, the unit will restart automatically without the need for anexternal command. However, any faults active when the supply is interrupted are saved andmay in certain cases prevent a circuit or unit from restarting.Direct intervention on the power supply can cause electrocution, burns or even death. This actionmust be performed only by trained persons. FlowswitchThe unit must be protected by a flowswitch. The flowswitch will stop the unit when the waterflow becomes lower than the minimum allowed flow. When the water flow is restored the flowprotection resets automatically. Exception is when the flowswitch opens with at least onecompressor running, in this case the alarm shall be cleared manually. Freezing protectionAntifreeze protection prevents the water to freeze in the evaporator. It is automatically activatedwhen the water temperature (entering or leaving) at the evaporator drops below the antifreezelimit. In freeze condition if the unit is in standby the evaporator pump will be activated to preventfreezing of the evaporator. If the freeze condition will activate when the unit is running all theunit will shut down in alarm while the pump will keep running. Alarm will automatically clearwhen the freeze condition will clear. Low pressure protectionIf the circuit operates with a suction pressure lower than an adjustable limit for a certain time thecircuit safety logic will shut down the circuit and generate an alarm. The alarm requires amanual action on the Unit Controller to be reset. Reset will take effect only if the suctionpressure is no longer lower that the safety limit. High Pressure ProtectionIf the discharge pressure becomes too high and exceeds a limit which is linked with theoperational envelop of the compressor the circuit safety logic will try to prevent the alarm or, ifthe corrective actions have no effect, it will shut down the circuit before the Mechanical HighPressure switch will open. This alarm required a manual action on the Unit Controller to bereset. Mechanical High Pressure SwitchEach circuit is equipped with at least one high pressure switch which tries to prevent the reliefsafety valve to open. When the discharge pressure becomes too high the Mechanical HighPressure switch will open and immediately stop the compressor cutting the power supply to theauxiliary relay. The alarm can be cleared as soon as the discharge pressure becomes normalagain. The alarm must be reset on the switch itself and on the Unit Controller. The triggeringpressure value cannot be changed. Relief Safety ValveOperation Manual8EWAD TZ170-710Air cooled inverter water chillerD-EOMAC00909-14EN
EWAD TZ-SS 170 710 kWEWAD TZ-SR 170 710 kWEWAD TZ-XS 180 682 kWEWAD TZ-XR 180 682 kWEWAD TZ-PS 185 639 kWEWAD TZ-PR 185 639 kW- SILVER- SILVER- GOLD- GOLD- PLATINUM- PLATINUMAir cooled inverter water chillerOPERATIONMANUALIf the pressure becomes too high in the refrigerant circuit, the relief valve will open to limit themaximum pressure. If this happens switch off immediately the machine and contact your localservice organization. Inverter faultEach compressor can be equipped with its own inverter (integrated or external). The invertercan automatically monitor its status and inform the Unit Controller in case of faults or pre-alarmconditions. If this happen the Unit Controller will limit the compressor operation or eventuallyswitch off the circuit in alarm. A manual action on the controller will be needed in order to clearthe alarm.1.4 Available sensors1.4.1 Pressure transducersTwo types of electronic sensors are used to measure suction, discharge and oil pressure on eachcircuit. The range of each sensor is clearly indicated on the sensor casing. Discharge and oilpressures are monitored using a sensor of the same range.1.4.2 Temperature sensorsThe evaporator water sensors are installed in the entering and leaving side. An outdoortemperature sensor is mounted inside the chiller. Additionally each circuit installs a suction anddischarge temperature sensors to monitor and control the superheated refrigerant temperatures.On refrigerant-cooled inverters additional sensors immersed into the cooling plate measure thetempera
Air cooled inverter water chiller MANUAL EWAD TZ 170-710 Air cooled inverter water chiller D-EOMAC00909-14EN Operation Manual 1 Air cooled inverter water chillers D-EOMAC00909-14EN OPERATION MANUAL EWAD TZ -SS - Screw - R134a - 170 710 kW - SILVER EWAD TZ -SR - Screw - R134a - 170 710 kW - SILVER EWAD TZ -XS - Screw - R134a - 180 682 kW - GOLD
cause water-cooled chillers can take advantage of lower condensing temperatures than air-cooled chillers. Air-cooled chillers have a full load kW/ton of approxi-mately 1.25 while water-cooled chillers have a full load kW/ton of between 0.55 and 0.8 kW/ton. The kW draw of the cooling tower fans and con-denser water pump should be
Air Cooled Chiller Air Air 2 Air Air 6 AIR COOLED CHILLERS Air-cooled chillers are refrigeration machines that remove heat from cooling loads using chilled water and reject this heat into the atmosphere using refrigerant. THEY ALL HAVE fans, condenser coils, and compressors. Air-cooled chillers are used to provide cooling for human comfort and electronic equipment as well as industrial process .
Maximum Series portable chillers can be used on a variety of process applications that require 20 F to 80 F chilled water. MAXIMUM SERIES † Air & Water-Cooled † 1/4 to 40 Tons † 20 F to 80 F † Using Non-Ozone Depleting Refrigerants 10 ton air-cooled model 10 ton water-cooled model 2 ton water-cooled model 1 ton air-cooled model
8 to 12 F for water-cooled chillers and 10 to 15 F for air-cooled chillers. ENSURE PROPER SUPERHEAT For air-cooled chillers, make sure fans work properly and coils are clean on the condenser side of the system. For water-cooled chillers, ensure that all flow rates and pressure drops on th
AIR-COOLED Air-Cooled chillers utilize plant ambient air to extract heat from the refrigeration circuit. Fan or blowers move the plant air across generously sized finned condenser coils to permit full rated capacity at design conditions. WATER-COOLED Water-Cooled chillers utilize a secondary plant water source such as cooling tower or city .
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YORK AMICHI SERIES AIR-COOLED DC INVERTER SCROLL CHILLERS AND HEAT PUMPS 44-254kW Exceeding Efficiency Standards The YORK Amichi Series Air-cooled DC Inverter Scroll Chiller and Heat Pump have been designed to meet tomorrow's efficiency standards today. Delivering performance beyond typical chiller and heat pump efficiency levels, the YORK Amichi Series
The Battle of the Bulge By David Motley Photos by David Motley and Wes Lambe Old Gibson flat top guitars have their excesses and flourishes. Top belly bulges sometimes develop just below the bridge. Like a long term sweets addiction, string tension and time can play havoc with an old lady’s mid drift profile. When introduced in 1927, the Nick Lucas Special was Gibson’s top of the line .
