Daikin FWECSA - I;O Table for the Board; Electrical Diagram

FC66003946
Rev 00
USER MANUAL
It is strictly forbidden to reproduce this manual, even partially
EN
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FWECSA
Controller for units
I/O TABLE FOR THE BOARD (figure 19)
POWER SUPPLY
L Phase
N Neutral
INPUTS
I1 Room air NTC probe
I2 Water NTC probe
I3 Hot water NTC probe (with 4-pipe units)
I4 Not used
I5 Not used
IC Common for NTC probes
+5 Not used
I6 Input for remote ON/OFF
I7 Input for remote SUM/WIN
I8 Input for remote ECONOMY
I9 Not used
I10 Not used
IC Common for I6-I7-I8
SU - SU Humidity probe
OUTPUTS
A1 Brushless fan modulation
A2
Water valve modulation
(cold with 4-pipe units)
A3 Hot water valve modulation (only with 4-pipe units)
CA Common for 0-10V outputs
O1 Extra-low speed
O2 Low Speed
O3 Medium Speed
O4 High Speed
O5 Water valve (cold with 4-pipe units)
O6 Hot water valve (only with 4-pipe units) or heater
C1 Common for O1-O6 relay outputs
O7 Configurable signal output
C7 Common for O7 relay output
PORTS (FRONT OF BOARD)
A/B/GND RS485 serial MODBUS protocol
+ / - Display connection or second board
+ / - Display connection or second board
ELECTRICAL DIAGRAM (figure 19)
KEY
SA Room temperature probe
SW Water temperature probe (cold with 4-pipe units)
SWH
Hot water temperature probe (only with 4-pipe
units)
SU Ambient humidity probe
ON/OFF Dry contact for remote ON/OFF
SUM/WIN Dry contact for remote SUMMER/WINTER
ECONOMY Dry contact for remote ECONOMY
FAN 0/10V Modulating fan 0/10V
VH 0/10V
Modulating 0/10V water valve (cold with 4-pipe
units)
VH 0/10V Modulating hot water valve (only with 4-pipe units)
MV Fan
INV Fan inverter
MV INV Inverter fan motor
V1 Extra-low speed
V2 Low speed
V3 Medium speed
V4 Maximum speed
COM Common for ON/OFF outputs
VC Water valve (cold with 4-pipe units)
VH/RE
Cold water valve (only with 4-pipe units) or electric
heater
CN Unit terminal board
IL Line switch (not included)
F Fuse (not included)
L Phase
N Neutral