Daikin FWP-AT - Инструкция по эксплуатации - Страница 42

FC66003946
Rev 00

USER MANUAL

It is strictly forbidden to reproduce this manual, even par tially

EN

10

FWECSA

Controller for units

ADJUSTMENT LOGIC

COOLING/HEATING SWITCHING

FAN SPEED

WINTER

SUMMER

AIR TEMPERATURE

WATER TEMPERATURE

OPENING VALVE

YES

NO

There are 4 different and alternative logics to select the 
thermostat operating modes, according to the controller 
configuration setting:

• 

Local

: chosen by the user pressing the MODE key

• 

Distance

: based on the status of digital input DI1

• 

depending on the 

water

 temperature

In case of a water probe alarm, the mode 

control returns temporarily to Local mode.

• 

depending on the 

air

 temperature

Where:

• 

Set is the temperature set with the arrows

• 

NZ is the neutral zone

The operating mode of the thermostat is indicated on the 
display by the symbols COOLING and HEATING.

VENTILATION

GENERAL ASPECTS

The control can manage two types of ventilation:

• 

step ventilation with a set number of selectable speeds 
(3 or 4);

• 

modulating ventilation with variable speed between 0% 
and 100%

The use of one or the other type of control depends on the 
type of ventilator (step or modulating) installed on-board 
the machine. Step adjustment itself can follow two different 
logics based on the type of valve/s (ON/OFF or modulating).
In brief, the automatic adjustment logics managed by the 
controller (and described in detail here below) are as follows:

• 

step ventilation with 0N/OFF valve (or not installed) and 3 
speeds, in cooling and heating mode;

• 

step ventilation with 0N/OFF valve (or not installed) and 4 
speeds, in summer and winter mode;

• 

step ventilation with modulating valve and 3 speeds, in 
summer and winter mode;

• 

step ventilation with modulating valve and 4 speeds, in 
summer and winter mode;

• 

modulating ventilation adjustment with ON/OFF valve, in 
summer and winter mode;

• 

modulating ventilation adjustment with modulating valve.

NATURAL CONVECTION

For units with valve, by enabling the parameter from the  
configuration menu, ventilation for heating is delayed by 
0.5°C to allow for an initial natural convection phase.

STEP VENTILATION

Use the UP/DOWN keys to choose from the following 
speeds:

• 

Automatic  SPD.:

depending on set temperature and 

room air temperature;

• 

Extra-low spd:

 can only be selected if the unit is 4 

speeds

• 

Low SPEED

• 

Medium SPD.

• 

High SPD.