Daikin FWP-AT - Инструкция по эксплуатации - Страница 34

FC66003946
Rev 00

USER MANUAL

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

EN

2

FWECSA

Controller for units

GENERAL FEATURES

The FWECSA controller is designed to control all of 
the system units in the Daikin range with multi-speed, 
single-phase motor or coupled to an inverter for speed 
modulation

. 

The FWECSA controller system is 

composed of

:

• 

I/O board

 containing the power supply circuit, 

the 

microprocessor system

 and the connectors 

(unscrewable) to connect the input and output devices;

• 

User unit

 composed of

 graphic display

 and keyboard 

(six keys) equipped with clock and probe to read the 
room temperature.

The connection between the I/O board and the 
user unit is set up using the relative connectors 
and a data transmission cable fitted with a pair 
of twisted conductors and shielding.

The controller makes 

serial communication

 possible on two 

types of networks:

• 

External  Supervisor  System solution

: connection 

to an external supervision system with MODBUS RTU 
protocol on serial RS485;

• 

SMALL solution

: connection of multiple FWECSA 

controllers in two possible configurations:

 - MASTER/SLAVE on serial RS485
 - MASTER/SLAVE on CW (Conveyed Waves), 

which can also be set up with External  Supervisor  
System solutions.

• 

Mixed net solution

: connection of multiple FWECSA 

controllers on different levels :

 - MASTER/SLAVE on serial RS485 (external 

supervisor system or FWECSA),directions to the 
slaves RS485 (called zone MASTER)  

 - zone MASTER FWECSA , receiving directions from  

NET MASTER RS485,transmitting directions to 
SLAVES OC 

 - NET SLAVES OC, working exactly to the ZONE 

MASTER 

MAIN FUNCTIONS

• 

Automatic

or manual

 fan speed variation (selected 

from the keyboard);

• 

Management of ON/OFF or modulating valves 

for two 

or four-piped systems.

• 

SUPPORTING  electric heater control,

 used during 

heating;

• 

SUMMER/WINTER mode switch

 (= cooling/heating) 

in four possible ways:

 - manually, from the keyboard;
 - manually, remotely (from digital input);
 - automatically, depending on water temperature;
 - automatically, depending on air temperature.

• 

dehumidification function control;

• 

operation with TIME SLOTS.

It is also supplied with:

• 

External pre-consensus digital input

 (for example: 

window contact, remote ON/OFF, presence sensor, etc.) 
that can enable or disable unit operation (contact logic: 
see board configuration parameters);

• 

Digital switching input

Remote centralised Cooling/

Heating

 (contact logic: see board configuration 

parameters);

• 

Digital input

 to enable 

ECONOMY

 function from 

remote control (contact logic: see board configuration 
parameters);

• 

Water temperature probe

 (accessory), one or two 

(optional with 4-pipe systems);

• 

STANDARD room air temperature probe 

(installed 

inside the user unit)

;

• 

Remote room air probe

 (accessory) that can be used, 

if connected, in place of the standard one installed in 
the user interface;

• 

Remote relative room air humidity probe

 (accessory);

• 

A completely configurable digital output

 (dry contact).