Daikin FWEC1 Mode D'emploi page 21

ECONOMY
The Economy function corrects the setpoint by 2.5°C and
forces the fan to run at the minimum available speed to reduce
unit operation.
■ Cooling: setpoint + 2.5°C
■ Heating: setpoint – 2.5°C
ACTIVATION
This function can be activated by pressing the key
DISPLAY
The Economy function is shown
on the display by the symbol
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.
ACTIVATION
If this control is selected, the unit will switch on when the room
temperature falls below 9°C.
When temperature exceeds 10°C the thermostat will resume
the Off status.
NB: Any Off command from digital input will disable this logic
DISPLAY
The display shows the following information
■ Minimum temperature control selected: symbol
■ Minimum temperature control enabled: DEFR indication
FWEC1
Standard electronic controller
FC66002763
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
■ Code 01 = error of external air temperature sensor (in case
of on-board thermostat)
■ Code 02 = error of internal air temperature sensor (in case
of wall mounted thermostat and disconnected external air
temperature sensor)
NON-SERIOUS ALARMS
Thermostat OFF
■ Code 03 = water sensor error
NB: the alarm code is displayed only when the thermostat is
switched off.
SELF-DIAGNOSIS PROCEDURE
This procedure allows you to check whether the individual
outputs of the controller function correctly.
To run the procedure, follow the directions below.
■ Switch the thermostat off
Air temp.
■ Push the
■ Use the
until arriving at the password for self-diagnosis (030) and
press . The following screen will be displayed:
■ Press the
outputs in sequence.
Thermostat ON
keys at the same time
level indication:
1= password entry
keys to change the value on the display
button to switch on the various thermostat
Installation and operation manual
7