Installation and operation manual
5
EKEX EKEXDCBAV3
Option kit for combination of Daikin condensing units
with field supplied evaporators
4PW30903-1
Precautions
■
Thermistor cable and remote controller wire should be located at
least 50 mm away from power supply wires and from wires to
the controller. Not following this guideline may result in
malfunction due to electrical noise.
■
Use only specified wires, and tightly connect wires to the
terminals. Keep wiring in neat order so that it does not obstruct
other equipment. Incomplete connections could result in
overheating, and in worse case electric shock or fire.
Connecting the wiring: EKEXFCBAV3
■
Connect the wires to the terminal board according to the wiring
diagram in
figure 3
. See
figure 4
for wiring intake in the control
box. The wiring intake hole indication H1 refers to the H1 cable
of the corresponding wiring diagram.
■
Connect cables according to specifications of the next table.
Table connection and application
Wiring diagram
A1P ....................Printed circuit board
A2P ....................Printed circuit board (for voltage conversion)
A3P ....................Printed circuit board (power supply)
F1U ....................Fuse (250 V, F5A)(A1P)
F2U ....................Fuse (250 V, T1A)(A3P)
F3U ....................Field fuse
HAP....................Light emitting diode (service monitor-green)
K1R ....................Magnetic relay (operation / compressor ON/OFF)
K2R ....................Magnetic relay (error status)
KAR, KPR ..........Magnetic relay
Q1DI...................Earth leakage breaker
R2T ....................Thermistor (liquid)
R3T ....................Thermistor (gas)
T1R ....................Transformer (220 V/21.8 V)
X1M,X2M,X3M ...Terminal block
Y1E ....................Electronic expansion valve
X1M-R1/R2 ........Thermistor liquid
X1M-R3/R4 ........Thermistor gas
X1M-Y1~6 ..........Expansion valve
X2M-P1/P2.........Communication remote controller
X2M-C1/C2 ........Output: error status
X2M-C3/C4 ........Output: operation / compressor ON/OFF
X2M-T1/T2 .........Input: ON/OFF
X2M-F1/F2 .........Communication outdoor unit
X2M-C5/C6 ........Input: 0–10 V DC capacity control
........... Field wiring
L......................... Live
N ........................ Neutral
, ......... Connector
......................... Wire clamp
..................... Protective earth (screw)
............... Separate component
............... Optional accessory
BLK.................... Black
BLU.................... Blue
BRN ................... Brown
GRN................... Green
GRY ................... Gray
ORG .................. Orange
PNK ................... Pink
RED ................... Red
WHT .................. White
YLW ................... Yellow
Take special precaution for connection to the controller
(field supply). Do not miswire the output signals (operation
or error) nor the input signal (ON/OFF). This mistake could
damage the entire system.
Description
Connect to
Type of cable
Cross section
(mm
2
)
(*)
Maximum length
(m)
Specifications
L, N,
earth
Power supply
Power supply
H05VV-F3G2.5
2.5
—
Power supply 230 V 1~50 Hz
Y1~Y6
Expansion valve
connection
Expansion valve kit
LIYCY3 x 2 x 0.75
0.75
20
Digital output 12 V DC
R1,R2
Thermistor R2T
(liquid pipe)
—
H05VV-F2 x 0.75
Standard 2.5
Maximum 20
Analog input 16 V DC
R3,R4
Thermistor R3T
(gas pipe)
P1,P2
Remote controller
(optional)
100
Communication line 16 V DC
F1,F2
Communication to
outdoor unit
Outdoor unit
T1,T2
ON/OFF
Controller field supply
LIYCY4 x 2 x 0.75
(†)
Digital input 16 V DC
C1,C2
Error signal
Digital output: voltage free.
Maximum 230 V, maximum 0,5 A
C3,C4
Operation signal
(‡)
C5,C6
Capacity step
(**)
Analog input: 0–10 V
(*)
Recommended size (all wiring must comply with local codes).
(†) The maximum length depends on the external device that is connected (controller/relay,....)
(‡) Operation signal: indicates compressor operation.
(**) Only necessary for capacity controlled system.
