Daikin D2CND028A1AA, Servicing Manual

Page: 8 / 44

D2CND0 D2CND0 D2CND0
D2CND0 D2TND0 D2TND035A4AA
Wall-mounted condensing boiler
ESIE17 - 09 / 2017.11
Servicing manual
8
2.5 Wiring diagram
: Wiring depending on model
YOU MUST TURN POWER SUPPLY OFF WHEN YOU CHECK THE UNIT
TURN THE CIRCUIT BREAKER OFF AND WAIT FOR 10 MINUTES BEFORE SERVICE
: Several wiring possibilities
DANGER ELECTRICAL SHOCK
WARNING
6
5
K2
4
3
2
NTC1
8
7
6
5
4
3
2
NTC2
NTC3
NTC4
1
1
X1M
X1M
1
1
X1M
X2M
1~
M
PE
N
L
X1M
X8_BCC
X8
X9.5_C24V
X9.4_CGND
X9.3_C5v
X9.2_CRx
X9.1_CTx
X10.5_PC24V
X10.4_PCGND
X10.3_PC5V
X10.2_PCRx
X10.1_PCTx
X11.14_TMAXs
X11.13_V2-
X11.12_V2+
X11.11_V1-
X11.10_V1+
X11.9_TMAX
X11.8_FGDN
X11.7_Fn
X11.6_FPWM
X11.5_PNGD
X11.4_PFB
X11.3_PPWM
X11.2_OTH+
X11.1_OTH-
X12.4_Reserve2
X12.3_Reserve2
X12.2
X12.1_SolNTC-
X13.6_NO.1_A1
X13.5_NO.3_A3
X13.4_NO.4_B3
X13.3_NO.6_B1
X13.2_NO.5_B2_24V
X13.1_NO.2_A2_24V
X10
X11
X12
X13
X8.1_GND
X8.2_SCL
X8.3_SDA
X8.4_5V
2 1
PCB1
LED B
LED A
8
8
2xRJ11
RJ45
V2 V1
2
1
P1
F1
IT1
NTC5
IE1
WPS1
PCB2
HE1
Ext1
PCB3
Ext2
GV1
Ext3
3WV1
X5.2_IonPE
X5.1_IonSig
X4.1_TU_S
X4.2_TU_G
X4.3_TU_5
X4.4_WPS_S
X4.5_WPS_G
X4.6_WPS_5
X4.7_DHW-
X4.8_DHW+
X4.9_FLUE-
X4.
X4.11_RET-
X4.
X4.13_FLOW-
X4.
X4.15_OWC-
X4.
X3.1_PwmWh
X3.2_PwmB1
X3.3_ReWhSw
X3.4_Gnd
X3.5_5v
X2.8_LP1
X2.1_SOLs
X2.2_SOL
X2.3_RTs
X2.4_RT
X2.5_NPSRT
X2.6_LPSRT
X2.7_NP1
X5
X4
X3
X2
X1
X1.1_NP
X1.2_LP
X1.3_NI
X1.4_LI
X1.5_NF
X1.6_LF
X1.7_N
X1.8_L
1
: PCB : Switch box : Option : Field supply : Wire number 15 : Earth wiring : Main terminal
15
X4M
PE
X2M
Ext4
N
L
8
1
8
1
K1
DHW FS1
N
L
Ext5
X9
NTC6
PART NO.
CONNECTOR NO.
DESCRIPTION
PCB 1
-
MAIN PCB
PCB 2
X3
DAIKIN EYE PCB
PCB 3
X9
LAN (variCAN) ADAPTER
P1
X2-X11
BOILER PUMP
F1
X1-X11
FAN
GV1
X11
GAS VALVE
IT1
X1
IGNITION TRANSFORMER
3WV1
X13
CH
/D
HW
D
IV
ER
TE
R
VA
LV
E
ST
EP
PE
R
MO
TO
R
WPS1
X4
WATER PRESSURE SENSOR
DHW FSI
X4
DHW FLOW SENSOR
IE1
X5
IONISATION INPUT
K1
X2M
SOLAR STOP CONTACT
K2
X2M
ON/OFF ROOM THERMOSTAT
HE1
X11
OVERHEAT THERMOSTAT
NTC1
X1M
OUTSIDE TEMPERATURE SENSOR
NTC2
X4
FLOW TEMPERATURE SENSOR
NTC3
X4
RETURN TEMPERATURE SENSOR
NTC4
X4
FLUE TEMPERATURE SENSOR
NTC5
X4
DHW TEMPERATURE SENSOR
NTC6
X1M
SOLAR DHW TEMPERATURE SENSOR
Ext1
X8
BCC (BOILER CHIP CARD)
Ext2
X10
PC PRODUCTION INTERFACE
Ext3
X1M
OPENTHERM ROOM THERMOSTAT
Ext4
X2M
EXTERNAL POWER OUTPUT (230 VAC)
Ext5
X2M
RESERVED, NOT IN USE
X1M
X4-X11-X12
LOW VOLTAGE TERMINAL STRIP
X2M
X1-X2
HIGH VOLTAGE TERMINAL STRIP
figure-28a, Electrical wiring diagram (D2CND028A1AA,D2CND028A4AA, D2CND035A1AA, D2CND035A4AA)
figure-28b, Electrical wiring diagram (D2TND028A4AA,D2TND035A4AA)
2 Appliance information