WIRING DIAGRAMS
Unit table/Diagrams
.....
Electrical connections to be made by installer
Blue (Med. speed)
BU
Black (Max. speed)
BK
Brown
BN
Digital input common
CI12
Terminal board
CN
Remote Heat/Cool Digital Input
DI1
Remote On/Off Digital Input
DI2
External auxiliary contact
EXT
Fuse (not supplied)
F
Green
GN
Grey
GY
Circuit breaker (not supplied)
IL
Circuit board for UTN units
IPM
KP
Circuit board to control 4 indoor units
Phase
L
Fan motor
M
MS
Flap microswitch
Neutral
N
Ground
PE
Heating/Cooling remote selecting switch
RHC
Heating element
RE
Red (Min. speed)
RD
Air sensor
SA
Wiring box
SC
Water sensor
SW
Automatic safety thermostat
TSA
Safety fuse
TSM
-
Vo
Min. speed
V1
Med. speed
V2
V3
Max. speed
Solenoid valve - Cooling
VC
Solenoid valve - Heating
VH
VHC
Solenoid valve –Cool/Heat.
White (common)
WH
Yellow
YE
Heating element relay
KR
Installation and operation manual
10
INSTALLATION OF WALL-MOUNTED
CONTROLLER
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 installation:
■ Remove the fastening screw of the controller (see fi gure 4).
■ 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. (see fi gure 5).
■ 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).
(see fi gure 6).
■ Make the electrical connections to the indoor unit termi-
nal block as per the wiring diagram.
■ Close the controller with the screw provided.
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 sensors
Power outputs
Relay (see above)
NTC sensors 10K Ohm @25°C
Temperature sensors
Range -25-100°C
FWEC1
Standard electronic controller
FC66002763