Daikin ERLQ004CA Installer's Reference Manual

Also see for EHBH04CA: Operation manual Installation manual

Contents

EHBH04+08 + ERLQ004~008Daikin Altherma - Low Temperature Split4P313774-1 – 2012.05Installer reference guide508 ConfigurationLeaving water temperature: Delta T emitterTemperature difference for entering and leaving water. The unit isdesigned to support under floor loops operation. The recommendedleaving water temperature (set by the user interface) for under floorloops is 35°C. In such case, the unit will be controlled to realize atemperature difference of 5°C which means that the entering water tothe unit is around 30°C. Depending on the installed application(radiators, heat pump convector, under floor loops) or situation, it canbe possible to change the difference between entering and leavingwater temperature. Note that the pump will regulate its flow to keepthe ∆t.[A.3.1.2.3] [0-03][0-02][0-01][0-00]Set weather-dependent heating:Q Tt : Target leaving watertemperature (main)Q Ta : Outdoor temperatureQ [0-03]: Low outdoor ambienttemperature. –20°C~5°C (default:–10°C)Q [0-02]: High outdoor ambienttemperature. 10°C~20°C (default:15°C)Q [0-01]: Desired leaving watertemperature when the outdoortemperature equals or drops belowthe low ambient temperature.Between minimum and maximumleaving water temperature (default:40°C).Note: This value should be higherthan [0-00] as for low outdoortemperatures warmer water isrequired.Q [0-00]: Desired leaving watertemperature when the outdoortemperature equals or rises abovethe high ambient temperature.Between minimum and maximumleaving water temperature (default:25°C).Note: This value should be lowerthan [0-01] as for high outdoortemperatures less warm water isrequired.# Code Description[0-00][0-01]TaTt[0-03] [0-02][A.3.1.2.4] [1-06][1-07][1-08][1-09]Set weather-dependent cooling:Q Tt : Target leaving watertemperature (main)Q Ta : Outdoor temperatureQ [1-06]: Low outdoor ambienttemperature. 10°C~25°C (default:20°C)Q [1-07]: High outdoor ambienttemperature. 25°C~43°C (default:35°C)Q [1-08]: Desired leaving watertemperature when the outdoortemperature equals or drops belowthe low ambient temperature.Between minimum and maximumleaving water temperature (default:22°C).Note: This value should be higherthan [1-09] as for low outdoortemperatures less cold watersuffices.Q [1-09]: Desired leaving watertemperature when the outdoortemperature equals or rises abovethe high ambient temperature.Between minimum and maximumleaving water temperature (default:18°C).Note: This value should be lowerthan [1-08] as for high outdoortemperatures colder water isrequired.# Code Description[A.3.1.3.1] [9-09] Heating: required temperaturedifference between entering andleaving water. Range: 3~10°C (in stepsof 1°C; default value: 5°C).[A.3.1.3.2] [9-0A] Cooling: required temperaturedifference between entering andleaving water. Range: 3~10°C (in stepsof 1°C; default value: 5°C).# Code Description[1-09][1-08]TaTt[1-06] [1-07]