General Characteristics; Control Panel - Daikin FWEC3 Manual De Instalación Y De Uso

FWEC3

GENERAL CHARACTERISTICS

LCD ADVANCED PLUS controller has been designed to govern
the operation of all indoor units with single-phase multispeed
asynchronous motor. As for the ADVANCED version, an
advanced humidity control is present with the possibility of
connection to a MASTER/SLAVE network with ADVANCED
controls only.
MASTER-SLAVE SOLUTION (SEE FIGURE 1)
This solution sets up a Master-Slave system (up to 247 slave
terminals), in which one of the LCD controllers plays the role
of Master and controls all of the other slave elements.
The connection is made via an RS485 bus, consisting of a
simple shielded 2-conductor cable.
The MASTER controller (identified by the address 255), sends
the following information to the SLAVE controllers:
1. Operating mode (Cooling or Heating).
2. Limits for adjusting the room temperature SETPOINT (in
both SUMMER and WINTER modes): from each SLAVE
controller the SETPOINT programmed on the MASTER
controller can be adjusted by ± 2°C
3. ON/OFF status of the controller: all SLAVE controllers
will conform to the ON/OFF status of the MASTER
controller.
4. Enabling the controller minimum room temperature. With
ON thermostat: display of current water temperature.
MAIN FUNCTIONS AND FEATURES:
 A ir temperature adjustment through automatic step
regulation of fan speed or by modulating the fan speed
 R egulation of air temperature via fan on-off control (fan
runs at a fixed speed)
 C ontrol of On-Off or modulating valves for two or four-pipe
systems
 C ontrol of heating element for auxiliary heating
 C ooling/heating switching in the following modes:
- local manual switching
- remote, manual (centralised)
- a utomatic, depending on water temperature
- a utomatic, depending on air temperature
 D ehumidify Function
 S erial Communication
 H ourly programming operation
IT IS EQUIPPED WITH:
 N o-voltage contact for external activation (e.g. window
contact, remote ON/OFF, occupancy sensor, etc.) which
may enable or disable unit operation (contact logic: see
circuit board configuration parameters)
 N o-voltage contact for centralised remote Cooling/Heating
changeover (contact logic: see circuit board configuration
parameters)
 N o-voltage contact for remote enabling of the economy
mode (contact logic: see circuit board configuration
parameters)
 R emote water temperature sensor (FWTSKA accessory)
 I nternal temperature sensor
 I nternal humidity probe
FWEC3
Advanced plus electronic controller
FC66002765
Advanced plus electronic controller
 R emote air sensor (FWTSKA accessory) (this sensor,
if present, is used in place of the internal one for the
measurement of room temperature)
 R emote humidity probe (FWHSKA accessory - to be used
in combination with the remote temperature probe)
 T wo configurable digital outputs (no-voltage contacts) (see
"Configuration parameters of board")

CONTROL PANEL

The control panel is composed of:
 L CD display - back lit
 k eyboard with 7 keys
LCD DISPLAY - BACK LIT (SEE FIG. 2)
(1)
(2)
(3)
ON
OFF
AUTO
The backlight switches on every time a button is pressed and
automatically switches off about 2 minutes after the last button
was pressed.
room temperature
room humidity
set temperature
fan status. When flashing it indicates that fans are off
standing for a call from the thermostat. If the symbol
is steadily lit it means that the fans are running
fan status. Fans are off as speed is set to Off or
the control is off.
automatic ventilation logic
fan speed
operation mode: Cooling. When flashing it indicates
that water circuit is not enabled to fan ventilation.
operation mode: Heating. When flashing it indicates
that water circuit is not enabled to fan ventilation.
Dehumidification. When flashing it indicates that
the circuit is not enabled to dehumidification. If the
symbol is steadily lit it means that the function is
active
Economy option enabled
alarm triggered
Minimum Temperature Control
valve open
heating element. If the symbol flashes it means that
the heating element is on; if steadily lit it means only
that the heating element has been selected
serial communication active. The flashing symbol
indicates that the controller is the Master of a
network
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