Heating Element - Daikin FWEC3 Manual De Instalación Y De Uso

Extra low speed

Low speed

Medium speed

High speed

N.B.: in the case of modulating fans, the four symbols
mentioned above indicate the interval (extra-low, low,
medium and high) in which the operating speed falls.
N.B.: if the active speed is different from the one selected by
the user (in the case of a forced override), pressing the
button Fan once will cause the latter to be displayed;
pressing again will change this setting.
VALVE
The controller can manage 2- or 3-way valves of the ON/OFF
type (i.e. completely open or completely closed) or modulating
valves (the degree of valve opening may range between 0%
and 100%). As in the case of fans, parameter P14 (configura-
tion of analog outputs) must be carefully set based on the type
of valves actually present in the unit, so that the controller will
implement the correct control logic.
1. AIR CONTROL
A. ON/OFF VALVE
The valve opening is controlled according to the operating
setpoint and air temperature setpoint.
COOLING
HEATING
B. MODULATING VALVE
The valve opening is controlled according to the operating
setpoint and air temperature setpoint. The regulation logic for
opening conforms to the diagrams below.
COOLING
OPENING (%)
Installation and user manual
10
HEATING WITH 3-SPEED CONFIGURATIONS
HEATING WITH 4-SPEED CONFIGURATIONS
2. 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:
 H eating 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.
 P ost-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
AIR TEMP. post-ventilation the water temperature enabling signal will
coincide with the one seen for fan operation.
DISPLAY
The active valve indication on the display will be shown by
the symbol
AIR TEMP.

HEATING ELEMENT

The electrical heating element is a device used to provide
support where necessary in the heating mode.
SELECTION
If provided for in the configuration, the heating element can be
selected in the heating mode by pressing the Sel
ACTIVATION
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.
ROOM TEMP.
N.B.: switching it on will force the fan on as well
OPENING (%)
ROOM
TEMP.
OPENING (%)
ROOM
TEMP.
WATER
TEMP.
key.
AIR TEMP.
FWEC3
Advanced plus electronic controller
FC66002765