Daikin Altherma EAVH16S18DA6V Installation Manual

Also see for Altherma EAVH16S18DA6V: User reference guide Operation manual Operation manual Operation manual Installer's reference guide

Daikin Altherma EAVH16S18DA6V Installation Manual Manual pdf 16 page image

5 ConfigurationInstallation manual16EAVH/X16S18+23DA6V+9WDaikin Altherma – Low temperature split4P556067-1 – 2018.105.2.4 Configuration wizard: Backup heaterThe backup heater is adapted to be connected to most commonEuropean electricity grids. If the backup heater is available, thevoltage, configuration and capacity must be set on the userinterface.The capacities for the different steps of the backup heater must beset for the energy metering and/or power consumption controlfeature to work properly. When measuring the resistance value ofeach heater, you can set the exact heater capacity and this will leadto more accurate energy data.Voltage▪ For a 6V model, this can be set to:▪ 230V, 1ph▪ 230V, 3ph▪ For a 9W model, this is fixed to 400V, 3ph.# Code Description[9.3.2] [5‑0D] ▪ 0: 230V, 1ph▪ 1: 230V, 3ph▪ 2: 400V, 3phConfigurationThe backup heater can be configured in different ways. It can bechosen to have a 1-step only backup heater or a backup heater with2 steps. If 2 steps, the capacity of the second step depends on thissetting. It can also be chosen to have a higher capacity of thesecond step in emergency.# Code Description[9.3.3] [4‑0A] ▪ 1: Relay 1 / Relay 1+2▪ 2: Relay 1 / Relay 2▪ 3: Relay 1 / Relay 2 Emergency Relay1+2INFORMATIONSettings [9.3.3] and [9.3.5] are linked. Changing onesetting influences the other. If you change one, check if theother is still as expected.INFORMATIONDuring normal operation, the capacity of the second step ofthe backup heater at nominal voltage is equal to[6‑03]+[6‑04].INFORMATIONIf [4‑0A]=3 and emergency mode is active, the powerusage of the backup heater is maximal and equal to2×[6‑03]+[6‑04].INFORMATIONOnly for systems with integrated domestic hot water tank: Ifthe storage temperature set point is higher than 50°C,Daikin recommends NOT to disable the backup heatersecond step because it will have a big impact on therequired time for the unit to heat up the domestic hot watertank.Capacity step 1# Code Description[9.3.4] [6‑03] ▪ The capacity of the first step of thebackup heater at nominal voltage.Additional capacity step 2# Code Description[9.3.5] [6‑04] ▪ The capacity difference between thesecond and first step of the backupheater at nominal voltage. Nominalvalue depends on backup heaterconfiguration.5.2.5 Configuration wizard: Main zoneThe most important settings for the main leaving water zone can beset here.Emitter typeDepending on the system water volume and the heater emitter typeof the main zone, the heat up or cool down of the main zone cantake longer. This setting can compensate for a slow or a quickheating/cooling system during the heat up/cool down cycle. Thetarget delta T for the main zone will depend on this setting.In room thermostat control, this setting will influence the maximummodulation of the desired leaving water temperature, and thepossibility for usage of the automatic cooling/heating changeoverbased on the indoor ambient temperature.Therefore it is important to set this correctly and in accordance withyour system layout.# Code Description[2.7] [2‑0C] ▪ 0: Underfloor heating▪ 1: Fancoil unit▪ 2: RadiatorThe setting of the emitter type has an influence on the space heatingsetpoint range and the target delta T in heating as follows:Description Space heatingsetpoint rangeTarget delta T inheating0: Underfloor heating Maximum 55°C Variable1: Fancoil unit Maximum 55°C Variable2: Radiator Maximum 65°C Fixed 8°CNOTICEFor radiators, the average emitter temperature will belower compared to underfloor heating, due to the fixeddelta T of 8°C. To compensate, you can:▪ Increase the weather dependent curve desiredtemperatures [2.5].▪ Enable leaving water temperature modulation andincrease the maximum modulation [2.C].ControlFor the control of the unit there are 3 possibilities:Control In this control...Leaving water Unit operation is decided based on the leavingwater temperature regardless the actual roomtemperature and/or heating or cooling demandof the room.External roomthermostatUnit operation is decided by the externalthermostat or equivalent (e.g. heat pumpconvector).Room thermostat Unit operation is decided based on the ambienttemperature of the user interface used as aroom thermostat.