Daikin EWAD TZ-B User Manual Download

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Air and Water cooled inverter chillers and heat pump

EWAD TZ - EWAD TZ B - EWWD VZ
Air and Water cooled inverter chillers
and heat pump

D-EOMZC00105-17EN
Operation Manual
1/84

Air cooled:



EWAD TZ



EWAD TZ-B

Water cooled:



EWWD VZ

Air and Water cooled inverter chillers and heat pump

D-EOMZC00105-17EN

OPERATION MANUAL

Summary of Contents for EWAD TZ-B

Page 1: ...AD TZ EWAD TZ B EWWD VZ Air and Water cooled inverter chillers and heat pump D EOMZC00105 17EN Operation Manual 1 84 Air cooled EWAD TZ EWAD TZ B Water cooled EWWD VZ Air and Water cooled inverter chi...

Page 2: ...witchbox Pressurization fan for HFO units W C only 10 1 6 Customer Terminal Block Connections 10 1 6 1 Evaporator Flow Switch 11 1 6 2 Condenser Flow Switch W C units only 11 1 6 3 Double setpoint 11...

Page 3: ...4 2 7 3 Thermostat Ctrl 25 4 2 7 4 Timers 25 4 2 7 5 Standby Chiller 25 4 2 8 Rapid Restart 25 4 2 9 Date Time 25 4 2 10 Scheduler 26 4 2 11 Power Conservation 26 4 2 12 Controller IP setup 27 4 2 13...

Page 4: ...42 5 1 6 Date Time 43 5 1 6 1 Date Time and UTC Settings 43 5 1 6 2 Quiet Mode Scheduling A C units only 43 5 1 7 Scheduler 43 5 2 Unit Circuit Start up 43 5 2 1 Unit Status 43 5 2 2 Prepare the unit...

Page 5: ...units only 60 6 2 6 Outside Air Temperature sensor fault alarm A C units only 60 6 3 Unit Rapid Stop Alarms 61 6 3 1 Condenser Water Freeze alarm W C units only 61 6 3 2 Condenser Water Flow Loss ala...

Page 6: ...XV Driver Error A C units only 74 6 6 10 EXV Motor Not Connected TZ B units only 74 6 6 11 Fail Start Low Pressure 74 6 6 12 Fan VFD Over Current A C units only 75 6 6 13 High Discharge Temperature Al...

Page 7: ...in circuit breaker or isolator IMPORTANT This equipment uses and emits electromagnetic signals Tests have shown that the equipment conforms to all applicable codes with respect to electromagnetic comp...

Page 8: ...llow it Phase reversal under over voltage ground fault protections When one of those alarms occurs the unit is immediately stopped or even inhibited to start The alarms clear automatically once the pr...

Page 9: ...gerant circuit the relief valve will open to limit the maximum pressure If this happens switch off immediately the machine and contact your local service organization Inverter fault Each compressor ca...

Page 10: ...ambient will generate a stop of the unit to re establish a safe condition for the users 1 6 Customer Terminal Block Connections The contacts below are available at the user s terminal block referred...

Page 11: ...y different chiller starts 1 6 4 Current limit optional This optional feature enables a capacity control of the unit in order to limit the input current The current limit feature is included in the En...

Page 12: ...nnot be directly linked to a corresponding limitation of the unit current 50 demand limit can differ from 50 of the unit FLA The demand limit signal can be changed continuously between 4 and 20 mA The...

Page 13: ...m operates autonomously Local or Remote mode it retains all of its own control capabilities but does not offer any of the features of the Network mode In this case monitoring of the unit operational d...

Page 14: ...red for 2 circuits EEXV Module 2 POL94U 00 MCQ 5 Used when configured for 2 circuits Extension Module POL965 00 MCQ 5 Used on all configurations Rapid Restart Module POL945 00 MCQ POL945 00 MCQ 22 Use...

Page 15: ...s 3 1 General Recommendation Before switching on the unit read the following recommendations When all the operations and all the settings have been carried out close all the switchbox panels The switc...

Page 16: ...sclosed E n t e r P a s s w o r d 2 2 E n t e r P W 5 The password will time out after 10 minutes and is cancelled if a new password is entered or the control powers down Entering an invalid password...

Page 17: ...larm Active and Alarm Log Alarms are cleared from the Active Alarm link Press the wheel to jump to the next screen When the Active Alarm list is entered scroll to the item AlmClr which is set to off b...

Page 18: ...llow Communication not possible to the Neuron The Neuron must be configured and set online over the LON Tool 3 6 Controller maintenance The controller requires to maintain the installed battery Every...

Page 19: ...tails 3 8 Embedded Web Interface The MicroTech III controller has an embedded web interface that can be used to monitor the unit when connected to a local network It is possible to configure the IP ad...

Page 20: ...d to click on the value of the quantity to monitor and the following additional screen will become visible Depending on the web browser and its version the trend log feature may not be visible It s re...

Page 21: ...olled temperature link to Master Slave Data page Evaporator LWT 273 1 C Evaporator leaving water temperature link to Temperatures page Condenser LWT 273 1 C Condenser leaving water temperature link to...

Page 22: ...etwrk Cap Lim 100 100 Capacity limitation from BMS Netwrk HR SP 45 0 C N A Heat recovery setpoint from BMS Network Heat SP N A 45 0 C Heating setpoint from BMS W C Units only Netwrk Ice SP 4 0 C 4 0 C...

Page 23: ...C Setpoint for activation of Tower 2 Tower Setpt 3 29 0 C 28 0 55 0 C Setpoint for activation of Tower 3 Tower Setpt 4 31 0 C 30 0 55 0 C Setpoint for activation of Tower 4 Tower Diff 1 1 5 C 0 1 5 0...

Page 24: ...actual load of the Slave 2 Sl3 Load 0 100 Display the actual load of the Slave 3 Mst LWT Display the Master leaving water temperature Sl1 LWT Display the Slave1 leaving water temperature Sl2 LWT Displ...

Page 25: ...rvice password can be used to reset the Stage Up Dn Timer 4 2 7 5 Standby Chiller This menu allows to configure the standby chiller Setpoint Sub Menu Default Range Description Standby Chiller No No Au...

Page 26: ...ow reports the menu used to program daily time slots Six time slots can be programmed by the user Setpoint Sub Menu Default Range Description Time 1 0 00 23 59 Define the starting time of 1st time slo...

Page 27: ...lt Range Description Apply Changes No No Yes When Yes it save changes made on settings and reboot the controller DHCP Off Off On When On Enable DHCP to automatically obtain an IP address Act IP Active...

Page 28: ...m shows a value and a link to another page In that page the same data will be represented for both circuits as a reference as shown in the below example Setpoint Sub Menu Default Description Comp 1 Ru...

Page 29: ...apct Life 100 N A Inverter capacitors remaining life Start VFD Spd 1800rpm N A Compressor start speed Max VFD Spd 5400rpm N A Compressor maximum speed 4 3 3 Condenser A C only This page resumes all th...

Page 30: ...24 C Economizer Saturated Temperature Econ Temp 30 C Economizer Temperature Econ En Cap 1200rpm Minimum compressor speed to enable Economizer 4 3 6 Settings A C units only This page resumes the settin...

Page 31: ...C Master Slave Common supply water temperature HR LWT 273 1 C N A Heat Recovery Leaving Water Temperature HR EWT 273 1 C N A Heat Recovery Entering Water Temperature 4 6 Condenser LWT W C Units only...

Page 32: ...of the alarms and how to handle will be discussed in the section 6 Setpoint Sub Menu Default Description Alarm Active List of the active alarms Alarm Log History of all the alarms and acknowledges Ev...

Page 33: ...ibrate Sensors Setpoint Sub Menu Default Range Description Unit Submenu for Unit calibrate sensor Circuit 1 Submenu for Circuit 1 calibrate sensor Circuit 2 Submenu for Circuit 2 calibrate sensor 4 12...

Page 34: ...2 Acutators and sensors for Circuit 2 4 12 3 1 Unit This page contains all the test point status of the digital inputs status of the digital output and raw value of the analog inputs associated to th...

Page 35: ...izr Off Off On Test of the Economizer SV Test Fan 1 Off Off On Test of the Fan Output 1 Test Fan 2 Off Off On Test of the Fan Output 2 Test Fan 3 Off Off On Test of the Fan Output 3 Test Fan 4 Off Off...

Page 36: ...Setpoint Sub Menu Default Range Description Next Maint Jan 2015 Schedule date for next maintenance Support Reference 999 999 999 Reference number or email of Service Org 4 13 About this Chiller This...

Page 37: ...ng modes can be selected through the Available modes menu 4 8 Mode Description Unit Range Cool Set if chilled water temperature up to 4 C is required No glycol is generally needed in the water circuit...

Page 38: ...Test see section 5 2 2 A C and W C 5 1 3 Temperature Settings Purpose of the unit is to keep the evaporator leaving water temperature as close as possible to a pre set value called Active Setpoint The...

Page 39: ...nged If the leaving water temperature decreases below Cool Mode or rises above Heat Mode the active setpoint AS unit capacity is adjusted to keep it stable A further decreasing Cool Mode or increasing...

Page 40: ...e condenser water circuit When glycol is used in the plant always disconnect antifreeze electric heater 5 1 4 1 Pumps The UC can manages one or two water pumps for both evaporator and for W C units co...

Page 41: ...y Outside Air Temperature OAT Setpoint Reset by an external signal 4 20mA Setpoint Reset by Evaporator T Return The following setpoints are available through this menu Parameter Description Setpoint R...

Page 42: ...offset to the LWT setpoint is increasingly applied up to the MR value when the return temperature reaches the chilled water temperature The Return Reset may affect negatively the chiller operation wh...

Page 43: ...the function Time Scheduler enabled when the parameter Unit Enable is set to Scheduler 0 For each day of the week user can define six time slots and choose for each time slot one of following mode Par...

Page 44: ...ng with the Quiet Mode activated Active setpoint may differ from what has been set as cooling setpoint Max Pulldn Unit thermostat control is limiting the unit capacity because the water temperature is...

Page 45: ...S connected to the UC using a communication protocol In order to control the unit over the network the Control Source setpoint must be turned in Network default is Local and Network En Sp must be Enab...

Page 46: ...Refer to section 6 before proceeding EXV Preopen EXV prepositioning before compressor starts Run Pumpdown Circuit is shutting down because of thermostat control or pumpdown alarm or because the enabl...

Page 47: ...ormal running conditions If the evaporating pressure drops below the Low Pressure Hold limit compressor is inhibited to increase its running capacity This condition is indicated on the controller disp...

Page 48: ...to troubleshoot this problem 5 2 9 High Vfd Current When the compressor is running and its output current rises above the safety limits the circuit control logic reacts at two different levels in orde...

Page 49: ...imum energy consumption of compressor and fans 5 3 1 Fan Settings A C units only The unit may be equipped with on off fans inverter fans or brushless fans Based on the fan type different settings are...

Page 50: ...2202 Acceleration Time 10 s 10 s 2203 Deceleration Time 10 s 10 s 2603 IR compensation Volt 10 5 10 5 2604 IR comp frequency 50 50 2606 Switching Frequency 8kHz 8kHz 2609 Noise Smoothing Enable Enabl...

Page 51: ...bove the MOP When the EXV transitions to the Superheat control the superheat target is calculated to maximize the evaporator surface used to exchange heat with the other medium This target is constant...

Page 52: ...rheating Liquid injection will be turned off when the discharge temperature decreases below the activation 5 8 Variable Volume Ratio Control VVR Variable Volume Ratio slides in the compressor adapt di...

Page 53: ...em or sub system to prevent potential damages The UC displays the active alarms in a dedicated page and keep an history of the last 50 entries divided between alarms and acknowledges occurred Time and...

Page 54: ...lay Demand Limit function cannot be used String in the alarm list BadDemandLimitInput String in the alarm log BadDemandLimitInput String in the alarm snapshot BadDemandLimitInput Demand limit input ou...

Page 55: ...en flowswitch the activation of circuit breakers fuses or to a pump breakdown Symptom Cause Solution Unit could be ON Bell icon is moving on controller s display Backup pump is used or stop of all cir...

Page 56: ...arted but the flow switch is not able to close within the recirculate time This can be a temporary condition or may be due to a broken flowswitch the activation of circuit breakers fuses or to a pump...

Page 57: ...n acceptable range Symptom Cause Solution Unit status is Off All circuits are stopped with a normal shutdown procedure Bell icon is moving on controller s display String in the alarm list UnitAlHREwtS...

Page 58: ...e alarm list RpdRcvryCommFail String in the alarm log RpdRcvryCommFail String in the alarm snapshot RpdRcvryCommFail Module has no power supply Check the power supply from the connector on the side of...

Page 59: ...with a normal shutdown procedure Bell icon is moving on controller s display String in the alarm list UnitOffCndLvgWTempSen String in the alarm log UnitOffCndLvgWTempSen String in the alarm snapshot...

Page 60: ...t All circuits are stopped with a normal shutdown procedure Bell icon is moving on controller s display String in the alarm list StartInhbtAmbTempLo String in the alarm log StartInhbtAmbTempLo String...

Page 61: ...lycol percentage Reset Notes Local HMI Network Auto It s required to check if the condenser has any damage due to this alarm 6 3 2 Condenser Water Flow Loss alarm W C units only This alarm is generate...

Page 62: ...a normal shutdown procedure Bell icon is moving on controller s display String in the alarm list UnitOffLvgEntWTempSen String in the alarm log UnitOffLvgEntWTempSen String in the alarm snapshot UnitO...

Page 63: ...arm is required to clear the alarm either locally and if needed on the leak detector itself Symptom Cause Solution Unit status is Off All circuits are stopped immediately Bell icon is moving on contro...

Page 64: ...must be performed only by trained persons In case of doubts contact your maintenance company Symptom Cause Solution Unit status is Off All circuits are stopped immediately Bell icon is moving on cont...

Page 65: ...Circuit Alerts 6 4 1 Economizer Pressure Sensor fault A C units only This alarm is generated to indicate that the sensor is not reading properly Symptom Cause Solution Circuit status is On Economizer...

Page 66: ...ull closing position of EEXV Sight glass should not show refrigerant flow after the valve is closed Check LED on the top of the valve C LED should be solid green If both LED are blinking alternately t...

Page 67: ...CxCmp1 MainCode01 String in the alarm snapshot CxCmp1 MainCode01 The inverter cooling valve in the inverter may require a verification or a replacement Contact your service organization to get the pr...

Page 68: ...eration according information about kOhm k range related to temperature values Sensor is broken Check if sensor is shorted with a resistance measurement Sensor is not properly connected open Check for...

Page 69: ...Cmp1 OffLiquidTempSen String in the alarm log CxCmp1 OffLiquidTempSen String in the alarm snapshot CxCmp1 OffLiquidTempSen Sensor is shorted Check for sensor integrity Check correct sensors operation...

Page 70: ...ing in the alarm list CxCmp1 OffDishSHLo String in the alarm log CxCmp1 OffDishSHLo String in the alarm snapshot CxCmp1 OffDishSHLo EEXV is not working correctly It s not opening enough or it s moving...

Page 71: ...Circuit status is Off All circuits are stopped immediately Bell icon is moving on controller s display String in the alarm list Cx OffCmpCtrlrComFail String in the alarm log Cx OffCmpCtrlrComFail Stri...

Page 72: ...ffVfdOverTemp String in the alarm log CxCmp1 OffVfdOverTemp String in the alarm snapshot CxCmp1 OffVfdOverTemp Insufficient motor cooling Check refrigerant charge Check if operational envelope of the...

Page 73: ...the discharge temperature reach the high limit value Bell icon is moving on controller s display String in the alarm list Cx EcoEXVMotor String in the alarm log Cx EcoEXVMotor String in the alarm snap...

Page 74: ...o get the problem solved Reset Notes Local HMI Network Auto 6 6 10 EXV Motor Not Connected TZ B units only This alarm indicates an abnormal condition of the EXV Driver Symptom Cause Solution Circuit s...

Page 75: ...ndicates that the temperature at the discharge port of the compressor exceeded a maximum limit which may cause damages to the mechanical parts of the compressor When this alarm occurs compressor s cra...

Page 76: ...er s display String in the alarm list CxCmp1 OffMotorTempHi String in the alarm log CxCmp1 OffMotorTempHi String in the alarm snapshot CxCmp1 OffMotorTempHi Insufficient motor cooling Check refrigeran...

Page 77: ...lers Check IOM for proper installation Entering water temperature at condenser is too high W C units Check the cooling tower operation and settings Check the three way valve operation and settings One...

Page 78: ...Solution Circuit status is Off The circuit is stopped Bell icon is moving on controller s display String in the alarm list CxCmp1 OffPrRatioLo String in the alarm log CxCmp1 OffPrRatioLo String in th...

Page 79: ...there are no any short circuit of the hot air blown from the fans of the same unit or even from fans of next chillers Check IOM for proper installation One or more condenser fan turning in wrong direc...

Page 80: ...hat the compressor is not able to start or to create a certain minimum variation of the evaporating or condensing pressures after start Symptom Cause Solution Circuit status is Off The circuit is stop...

Page 81: ...e alarm list Cx OffUnderVoltage String in the alarm log Cx OffUnderVoltage String in the alarm snapshot Cx OffUnderVoltage Chiller main power supply had a down peak which caused the trip Check if main...

Page 82: ...f Heat Recovery set on HR EWT 273 1 C Heat Recovery Entering Water Temperature displayed only if Heat Recovery set on Additionally the Heat Recovery setpoint and differential will become visible and c...

Page 83: ...to a power failure A digital contact is used to inform the controller that the feature is enabled The feature is configured in the factory Rapid restart is activated under the following conditions The...

Page 84: ...or the completeness accuracy reliability or fitness for particular purpose of its content and the products and services presented therein Specification are subject to change without prior notice Refer...

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Daikin EWAD TZ-B, Operation Manual

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