Daikin EWAD TZ-B Operation Manual

Also see for EWAD TZ: Installation, operation and maintenance Installation, operation and maintenance manual

Contents

Daikin EWAD TZ-B Operation Manual Manual pdf 25 page image

Air and Water cooled inverter chillers and heat pumpEWAD TZ - EWAD TZ B - EWWD VZAir and Water cooled inverter chillersand heat pumpD-EOMZC00105-17ENOperation Manual25/84Setpoint/Sub-Menu Default Range DescriptionComplete  On/Off + Capacity controlControl Tmp= Leaving EnteringLeavingParameter to define the controlled temperatureEntering - Thermoregulations is based on the Average Entering Water Temperature(AEWT)Leaving - Thermoregulation is based on the Common Leaving Water Temperature(CLWT)4.2.7.3 Thermostat CtrlThis page resumes all thermostat control parameter of Master Slave.Setpoint/Sub-Menu Default Range DescriptionStage Up DT= 2.7°C 0.5…5.0°C Offset respect the active setpoint for the unit startup.Stage Dn DT = 1.5°C 0.5…5.0°C Offset respect the active setpoint for the unit shutdown.Dead Band = 0.2 0.1 - Min(Stage UP DT, Stage DnDT)Dead Band respect the active setpoint within which theload/unload command are no longer generatedThreshold= 60% 30...100% Threshold of load that have to reach all units running beforestart of a new chillerStage Up Time= 5min 0min…20min Minimum time between the start of two chillersStage Dn Time= 5min 0min…20min Minim time between the stop of two chillersMin Evap Tmp= 4.0 -18…30°C Minimum Evaporator leaving water temperature4.2.7.4 TimersSetpoint/Sub-Menu Default Range DescriptionStage Up Timer= - - Current delay for new chiller stage upStage Dn Timer= - - Current delay for new chiller stage downClear Timers= Off OffResetThis command, visible only with service password, can be used to reset the Stage Up/DnTimer.4.2.7.5 Standby ChillerThis menu allows to configure the standby chillerSetpoint/Sub-Menu Default Range DescriptionStandby Chiller= No No, Auto, Master, Slave 1, Slave 2,Slave 3Standby chiller selectionCycling Type= Time Run Hours, Sequence Cycling type of standby chiller if previous parameter StandbyChiller is set as AutoInterval Time= 7 Days 1…365 Define the interval time (expressed in day) for the cycling ofstandby chillerSwitch Time= 00:00:00 00:00:00…23:59:59 Define the time within the day when will be performed theswitch of the standby chillerTmp Cmp= No No,Yes Enabling of Temperature Compensation functionTmp Comp Time= 120 min 0…600 Time constant of Temperature Compensation functionStandby Reset= Off Off, Reset Parameter to reset standby chiller cycling timer4.2.8 Rapid RestartThis page shows if the function Rapid Restart is enabled by external contact and it allows to define themaximum black out time in order to recover quickly the unit load.Setpoint/Sub-Menu Default Range DescriptionRapid Restart= Disable Enable, Disable Feature enable if Rapid Restart is installedPwr Off Time= 60s - Maximum black out time to enable Rapid Restart4.2.9 Date/TimeThis page will allow to adjust the time and date in the UC. This time and date will be used in the alarm log andto enable and disable the Quiet Mode. Additionally it’s also possible to set the starting and ending date for theDayLight Saving time (DLS) if used. Quiet Mode is a feature that is used to reduce the chiller noise. This isdone by applying the maximum setpoint reset to the cooling setpoint and increasing the condenser temperaturetarget by an adjustable offset.