Wiring Diagrams; Instructions For Wall Mounting; Technical Data - Daikin FWEC2 Installation And Operation Manual

WIRING DIAGRAMS

Key to symbols used in wiring diagrams:
Extra low speed
Vo
Min. speed
V1
Med. speed
V2
Max. speed
V3
Phase
L
Ground
PE
Neutral
N
Electrical heater
RE
Water sensor
SW
Air sensor
SA
SU Humidity sensor
Black (Max. speed)
BK
Blue (Med. speed)
BU
RD Red (Extra low speed)
White (common)
WH
Grey
GY
Brown (Min. speed)
BN
Green
GN
Yellow
YE
Flap microswitch
MS
Digital 1 input
DI1
Digital 2 input
DI2
Digital input common
CI2
RS 485
A/B/GND
Fuse (not supplied)
F
Circuit breaker (not supplied)
IL
Terminal board
CN
RHC Heating/Cooling remote selecting switch
Remote ON/OFF contact
EXT
Circuit board to control 4 indoor units
EPIMB6
EPIB6 Circuit board for FWD units
Fan motor
M
Solenoid valve –Cool/Heat.
VHC
Solenoid valve - Cooling
VC
Solenoid valve - Heating
VH
Automatic safety thermostat
TSA
Safety fuse
TSM
Wiring box
SC
Electrical connections to be made by
.....
installer
ECONOMY COMFORT / ECONOMY remote selecting
switch
Installation and operation manual
12
INSTALLATION OF WALL-MOUNTED CONTROLLER
NB: for wall mounting of the controller it is advisable to use
an electric box behind the controller to accommodate
the cables.
NB: Prior to installation, carefully remove the protective fi lm
from the display; removal of the fi lm may cause some
dark streaks to appear on the display but these will
disappear after a few seconds and are not signs of a
controller defect.

INSTRUCTIONS FOR WALL MOUNTING

1. Remove the fastening screw of the controller (FIGURE 8).
2. If a 503 electrical enclosure is used, pass the cables through
the slot at the bottom of the controller and use the holes
provided for fastening.
3. Otherwise, in the wall where you wish to mount the control-
ler, drill holes to match up with the fastening slots (5x8mm)
on the base of the controller; pass the cables through the
slot on the base and screw it to the wall (previously drilled)
(FIGURE 9).
4. Make the electrical connections to the indoor unit terminal
block as per the wiring diagram.
5. Close the controller box and fi x with the screw removed as
described at point 1.

TECHNICAL DATA

90-250Vac 50/60Hz
Power supply Electrical input 8W
Protection fuse 500mA delayed
Operating temp. Range 0-50°C
Storage temp. Range -10-60°C
NO 5A @ 240V (Resistive)
insulation: coil-contact distance 8 mm
Relay
4000V coil-relay dielectric
Max ambient temperature 105°C
Connectors 250V 10A
Clean contact
Digital inputs Closing current 2mA
Max. closing resistance 50 Ohm
Analog inputs Temperature and relative humidity probes
Power outputs Relay (see above)
NTC sensors 10K Ohm @25°C
Temperature sensors
Range -25-100°C
Resistive-type probe
Humidity probe
Range 20-90%RH
FWEC2
Advanced electronic controller
FC66002764