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 guide548 ConfigurationTemperature ranges (room temperature)Only applicable in room thermostat control. In order to save energyby preventing overheating or undercooling the room, you can limit therange of the room temperature, both for heating and/or cooling.Room temperature stepOnly applicable in room thermostat control and when the temperatureis displayed in °C.Room temperature hysteresisOnly applicable in case of room thermostat control. The hysteresisband around the desired room temperature is settable. Daikinadvises NOT to change the room temperature hysteresis as it is setfor an optimal use of the system.Room temperature offsetOnly applicable in case of room thermostat control. You can calibratethe (external) room temperature sensor. It is possible to give an offsetto the room thermistor value measured by the user interface or by theexternal room sensor. The settings can be used to compensate forsituations where the user interface or external room sensor cannot beinstalled on the ideal installation location (see installation manualand/or installer reference guide).Room frost protectionOnly applicable in case of room thermostat control. When the actualroom temperature would drop below the room frost temperature, theunit will supply leaving water (in heating operation mode) to the heatemitters to heat up the room again.Shut-off valveOnly applicable in case of 2 leaving water temperature zones.The shut-off valve, which is in the main leaving water temperaturezone, output is configurable.Thermo On/OFF: the valve closes, depending on [F-0B] when thereis no heating and/or demand of the room in the main zone. Enablethis setting to:Q avoid leaving water supply to the heat emitters in the main LWTzone (through the mixing valve station) when there is requestfrom the additional LWT zone.Q activate the On/OFF pump of the mixing valve station only whenthere is demand (see application guidelines). See "5 Applicationguidelines" on page 9.Cooling: Only applicable for EHBX and EHVX. The shut off valvecloses, depending on [F-0C] when the unit is running in coolingoperation mode. Enable this setting to avoid cold leaving waterthrough the heat emitter and the forming of condensation (e.g. underfloor heating loops or radiators).NOTICEWhen adjusting the room temperature ranges, all desiredroom temperatures are also adjusted to guarantee they arebetween the limits.# Code DescriptionRoom temp. range[A.3.2.1.2] [3-06] Maximum temp (heating)18~30°C (default: 30°C)[A.3.2.1.1] [3-07] Minimum temp (heating)12~18°C (default: 12°C)[A.3.2.1.4] [3-08] Maximum temp (cooling)25~35°C (default: 35°C)[A.3.2.1.3] [3-09] Minimum temp (cooling)15~25°C (default: 15°C)# Code Description[A.3.2.4] [3-06] Room temp. stepQ 1°C (default). The desired roomtemperature on the user interface issettable per 1°C.Q 0.5°C The desired roomtemperature on the user interface issettable per 0.5°C. The actual roomtemperature is displayed with anaccuracy of 0.1°C.# Code DescriptionN/A [9-0C] 1~6°C (default: 1°C)# Code DescriptionRoom temp. offset: Offset on the actual room temperaturemeasured on the user interface sensor.[A.3.2.2] [2-0A] –5~5°C, step 0.1°C (default: 0°C)Ext. room sensor offset: Only applicable if the external room sensoroption is installed and configured (see [C-08])[A.3.2.3] [2-09] –5~5°C, step 0.1°C (default: 0°C)NOTICEEven if the room thermostat control is OFF on the userinterface, room frost protection remains active.# Code DescriptionN/A [2-06] Room frost protection0: disabled1: enabled (default)N/A [2-05] Room antifrost temperature4~16°C (default: 12°C)INFORMATIONDuring defrost operation, the shut-off valve is alwaysopened.# Code Description[A.3.1.1.6.1] [F-0B] The shut-off valve:0 (No): is NOT influenced by heating orcooling demand.1 (Yes)(default): closes when there isheating or cooling demand.# Code Description[A.3.1.1.6.2] [F-0C] The shut-off valve:0 (No)(default): is NOT influenced bychanging the space operation mode tocooling.1 (Yes): closes when the spaceoperation mode is cooling.