User manual DAIKIN FWEC1

[. . . ] Children being supervised not to play with appliance Keyboard (see figure 2) During the procedure of parameter modification, it permits to return to normal operating conditions Up and Down keys: changing of thermostat setting temperature (Heating :[5. During the procedure of parameter modification, they are used to select the parameters or to change their value SEL key: in the heating mode, the electric heating element can be selected as auxiliary function Mode key: selection of Heating/Cooling operating mode Fan key: selection of operating speed EC key: selection of Economy mode (1) (2) (3) AUTO room temperature Set temperature Automatic ventilation logic Fan speed Operation mode: Cooling. [. . . ] Can be selected only with 4-speed configuration. Low speed Medium speed High speed NB In the case of fixed speed, the fan on/off logic will be equivalent to the automatic logic. The display shows fan speed (with indication of "automatic" logic if proper) enabled or selected (in case of stand-by fan) Extra low speed Low speed Medium speed High speed The electrical heating element is a device used to provide support where necessary in the heating mode. NB: if the active speed is different from the one selected by the user (in the case of a forced override), pressing the button once will cause the latter to be displayed; pressing again will change this setting. The controller can govern 2 or 3-way On/OFF type valves with actuator featuring 230 V. OPENING The valve opening is controlled according to the operating setpoint and air temperature setpoint If use of the heating element is selected by the user, it will be activated on a call from the thermostat based on the room temperature NB: switching it on will force the fan on as well WATER CONTROL The related enabling logic is described below The enabling signal will not be given if the water sensor is either not present or disconnected DISPLAY The display will show the following information heating element selected by the user: steadily lit symbol active heating element: flashing symbol WATER CONTROL The checking of water temperature to enable valve opening is a function that concerns only configurations with 3-way valves and heating element. In such configurations the water temperature will be checked in the following cases: Heating with heat element: operation of the heating element will force the fan to switch on; it is therefore necessary to prevent excessively cold water from passing through the unit. Post-ventilation due to switching off of the heating element: this function will be maintained until the set time has elapsed, even if the operating mode is changed. During post-ventilation the water temperature enabling signal will coincide with the one seen for fan operation. 5°C and forces the fan to run at the minimum available speed to reduce unit operation. 5°C ACTIVATION This function can be activated by pressing the key DISPLAY The Economy function is shown on the display by the symbol ALARMS This control governs two types of alarms: Serious Alarms cause the forced switching off of the thermostat Non-serious Alarms do not cause the forced switching off of the thermostat, but disable possible critical functions SERIOUS ALARMS MINIMUM TEMPERATURE CONTROL This logic makes it possible to keep the room temperature from falling too far when the thermostat is off by forcing the unit into the heating mode if necessary and for the time required. If the heating element is present, it will be used only if it was previously selected as a resource in the heating mode. SELECTION When the thermostat is off, you can select the minimum temperature control by pressing at the same time the keys . The same key combination disables this function. [. . . ] Speed) Brown Digital input common Terminal board Remote Heat/Cool Digital Input Remote On/Off Digital Input External auxiliary contact Fuse (not supplied) Green Grey Circuit breaker (not supplied) Circuit board for UTN units Circuit board to control 4 indoor units Phase Fan motor Flap microswitch Neutral Ground Heating/Cooling remote selecting switch Heating element Red (Min. Speed) Air sensor Wiring box Water sensor Automatic safety thermostat Safety fuse Min. [. . . ]