Daikin ERQ Service Manual page 74

Connecting the wiring: EKEQDCBV3
■
Connect the wires to the terminal board according to the wiring
diagram in figure 5. See figure 6 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
Description
L, N,
Power supply
earth
Expansion valve
Y1~Y6
connection
Thermistor R2T
R1,R2
(liquid pipe)
Thermistor R3T
R3,R4
(gas pipe)
R5,R6 Thermistor R1T (air)
P1,P2 Remote controller
Communication to
F1,F2
outdoor unit
T1,T2 ON/OFF
— Capacity step
— Error signal
— Operation signal
C1,C2 Fan signal
(*) Recommended size (all wiring must comply with local codes).
Wiring diagram
A1P .................... Printed circuit board
A2P .................... Printed circuit board (option KRP4)
F1U .................... Fuse (250 V, F5A)(A1P)
F3U .................... Field fuse
HAP.................... Light emitting diode (service monitor-green)
K1R .................... Magnetic relay
K4R .................... Magnetic relay (fan)
Q1DI................... Earth leakage breaker
R1T..................... Thermistor (air)
R2T .................... Thermistor (liquid)
R3T .................... Thermistor (gas)
R7....................... Capacity adaptor
T1R .................... Transformer (220 V/21.8 V)
X1M,X3M ...........Terminal block
Y1E .................... Electronic expansion valve
X1M-C1/C2 ........Output: fan ON/OFF
X1M-F1/F2 .........Communication outdoor unit
X1M-P1/P2.........Communication remote controller
X1M-R1/R2 ........Thermistor liquid
X1M-R3/R4 ........Thermistor gas
X1M-R5/R6 ........Thermistor air
X1M-T1/T2 .........Input: ON/OFF
X1M-Y1~6 ..........Expansion valve
Installation and operation manual
64
Connect to Type of cable
Power supply H05VV-F3G2.5
Expansion valve kit LIYCY3 x 2 x 0.75
—
H05VV-F2 x 0.75
Outdoor unit
Controller field supply
LIYCY4 x 2 x 0.75
Air handling unit fan
H05VV-F3G2.5
field supply
Cross section Maximum length
2 (*)
(mm ) (m)
2.5 —
20
Standard: 2.5
Max.: 20
0.75
100
—
Optional connection: when the function of the switch box needs to be
extended: see KRP4A51 for details of settings and instructions.
2.5 —
............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
Option kit for combination of Daikin condensing units
: http://splitoff.ru/tehn-doc.html
Specifications
Power supply 230 V 1~ 50 Hz
Digital output 12 V DC
Analog input 16 V DC
Communication line 16 V DC
Digital input 16 V DC
Digital output: voltage free.
Maximum 230 V, maximum 2 A
EKEQFCBV3 + EKEQDCBV3
with field supplied air handling units
4PW52446-1