Daikin Altherma HT Service Manual

PCB Layout for EKHBRD 011/014/016 AA/AB/AC/AD V1/Y1 ESIE09-08B
44 Refrigerant Circuit
2.9 Demand PCB (Option PCB A8P)
Demand PCB (option PCB A8P)
Demand PCB (option PCB A8P)
used in
combination
with 5 for
thermostat
safety
feed-
back
BUH
mixing
station 1
used in
combina-
tion with 5
mixing
station 2
used in
combina-
tion with 5
used together
with 1, 2, 3
and/or 4
X80A
Connector Color Connected to - function
X80A White X85A of main PCB A1P
1 - 5 - 2 core cable for EKRTW on X1M [H - COM] of PCB A10P
1 - 5 - 2 core cable for EKRTR on X1M [H - COM] of PCB A11P + X2M [6 -
7
] to X2M [L - N
] of A11P + X1M [1 - 3] of A10P to R2T
2 - 5 - 2 core cable for BUH
3 - 5 - 2 core cable for mixing station 1
4 - 5 - 2 core cable for mixing station 2

Daikin Altherma HT Specifications

General

Type	Air-to-water heat pump
Refrigerant	R-410A
Water Outlet Temperature	Up to 80°C
Operating Temperature Range	-20°C to 35°C
Power Supply	3-phase, 400V
Energy Efficiency Class (Heating)	A++