Daikin ERQ, Service Manual

Page: 73 / 260

EKE EKEQDCBV3
Option kit for combination of Daikin condensing units
with field supplied air handling units
4PW52446-1
Installation and operation manual
63
Connecting the wiring: EKEQFCBV3
■
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)
K2R.....................Magnetic relay (error status)
K3R.....................Magnetic relay (operation / compressor ON/OFF)
K4R.....................Magnetic relay (fan)
K5R.....................Magnetic relay (defrost signal)
K1R,KAR,KPR....Magnetic relay
Q1DI ...................Earth leakage breaker
R2T.....................Thermistor (liquid)
R3T.....................Thermistor (gas)
R5 .......................Resistance (120
Ω )
R6 .......................Capacity adaptor
T1R.....................Transformer (220 V/21.8 V)
X1M,X2M,X3M ...Terminal block
Y1E.....................Electronic expansion valve
X1M-C7/C8.........Output: fan ON/OFF
X1M-C9/C10.......Output: defrost signal
X1M-R1/R2.........Thermistor liquid
X1M-R3/R4.........Thermistor gas
X1M-Y1~6 ..........Expansion valve
X2M-C1/C2.........Output: error status
X2M-C3/C4........ Output: operation / compressor ON/OFF
X2M-C5/C6........ Input: 0-10 V DC capacity control
X2M-F1/F2......... Communication outdoor unit
X2M-P1/P2 ........ Communication remote controller
X2M-T1/T2......... Input: ON/OFF
........... 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 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
C7,C8 Fan signal
Air handling unit fan
field supply
H05VV-F3G2.5 2.5 —
Digital output: voltage free.
Maximum 230 V, maximum 2 A
C9,C10 Defrost signal Controller field supply LIYCY4 x 2 x 0.75 0.75
(†)
Digital output: voltage free.
Maximum 230 V, maximum 0,5 A
(*) 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.
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