Daikin Altherma HT - Page 49

ESIE09-08B PCB Layout for EKHBRD 011/014/016 AA/AB/AC/AD V1/Y1
Refrigerant Circuit 37
Inverter PCB
X106A
X6A
X107A X111A
X9A
X5A
X21A
X13A
X11A
X12A
X17A
X32A
X25A
X41A
X28AHAP X77A
X51A
F6U P
LC
NC
LE
WVU
N
X18A
LD F4U
EC09008
Connector Color Connected to Function
X5A White - -
X6A White - -
X9A White X809A of PCB A5P QA PCB
X11A White - -
X12A Blue
R6T by connector X1Y [13, 14]
R7T by connector X1Y [15, 16]
Discharge & liquid [R-134a]
thermistor
X13A Wh
ite - -
X17A Red B1PH by connector X1Y [17, 18, 19] High pressure sensor
X18A Blue B1PL by connector X1Y [20 - 21 - 22] Low pressure sensor
X21A White K2E by connector X1Y [25 - 26 - 27 - 28 - 29 - 30] Electronic expansion valve
X25A Blue Y1R by connector X3Y [7 - 8] 4-way valve
X27A Pink M1F & M2F Switch box cooling fan
X28A Grey E1HC by connector X3Y [5 - 6] Crankcase heater
X32A White K1A Interface relay of S1PH & Q2L
X41A Blue - Service purpose
X51A Blue - -
X77A Yellow K1A & connector X3Y [9, 10] Interface relay of S1PH & Q2L
X106A Red - -
X107A White - -
X111A White R8T Fin thermistor
HAP LED - Indication power supply
Fuse 1 - - 5A, 250V for M1F, M2F
Fuse 2 - - 6,3A, 250V for Y1S, ECHC
LC Red LB of PCB A6P Filter PCB
LD Orange
R1L by connector X4Y [1, 2] Reactor
LE White
NC Blue NB of PCB A6P -
N Grey C1-
Capacitor C1
P Orange C1+
U Red U of M1C
CompressorV White V of M1C
W Blue W of M1C