Air and Water cooled inverter chillers and heat pumpD-EOMZC00105-17ENOperation Manual18/84EWAD TZ - EWAD TZ B -EWWD VZAir and Water cooled inverter chillers andheat pumpBUS LEDBUS LED LON Bacnet MSTP Bacnet IP ModbusSolid GreenReady forCommunication. (AllParameter loaded,Neuron configured).Doesn't indicate acommunication with otherdevices.Ready forCommunication. TheBACnet Server is started.It doesn't indicate anactive communicationReady forCommunication. TheBACnet Server is started.It doesn't indicate anactive communicationAll CommunicationrunningSolidYellow Startup StartupStartup. The LED staysyellow until the modulereceives a IP Address,therefore a link must beestablished.Startup, or one configuredchannel notcommunicating to theMasterSolid RedNo Communication toNeuron (internal error,could be solved bydownloading a new LONapplication)BACnet Server down.Automatically a restartafter 3 seconds areinitiated.BACnet Server down.Automatic restart after 3seconds is initiated.All configuredCommunications down.Means no communicationto the Master. The timeoutcan be configured. In casethat the timeout is zero thetimeout is disabled.FlashingYellowCommunication notpossible to the Neuron.The Neuron must beconfigured and set onlineover the LON Tool.3.6 Controller maintenanceThe controller requires to maintain the installed battery. Every two years it’s required to replace the battery.Battery model is: BR2032 and it is produced by many different vendors.To replace the battery remove the plastic cover of the controller display using a screw driver as shown in thefollowing pictures:Be careful to avoid damages to the plastic cover. The new battery shall be placed in the proper battery holderwhich is highlighted in the following picture, respecting the polarities indicated into the holder itself.3.7 Optional Remote User InterfaceAs an option an external Remote HMI can be connected on the UC. The Remote HMI offers the same featuresas the inbuilt display plus the alarm indication done with a light emitting diode located below the bell button.The Remote can be ordered with the unit and shipped loose as a field installed option. It can also be orderedany time after chiller shipment and mounted and wired on the job as explained on the following page. Theremote panel is powered from the unit and no additional power supply is required.All viewing and setpoint adjustments available on the unit controller are available on the remote panel.Navigation is identical to the unit controller as described in this manual.