Daikin Altherma 3 H HT ECH2O Series - Page 37

6 Technical data
Installation manual
37
Daikin Altherma ETS(X/H)(B)-D
Heat pump (indoor unit) with integrated heat accumulator
008.1448499_00 – 06/2019 – EN
Item Designation Item Designation
Heat pump outdoor unit K1 Relay 1 for backup heater
Heat pump indoor unit K2 Relay 2 for backup heater
3UVB1 3-way switch valve (internal heat generator circuit) K3 Relay 3 for backup heater
3UV DHW 3-way switch valve (hot water/heating) X1 Terminal strip for backup heater mains connection
A1P Printed PCB (heat pump basic control) X3 Internal wiring plug connection to J17 (RoCon BM2C)
X3A Plug connection for internal wiring (bridging plug) FLS FlowSensor
X4A Plug connection for FlowSensor FLS FS Flow switch
X5A Plug connection for t
V
inflow temperature sensor HT/NT Switching contact for low rate mains connection
X6A Plug connection for t
V, BH
inflow temperature sensor P Heating circulation pump (connected inside the device)
X9A Plug connection for storage tank temperature sensor
t
DHW1
P
Z
Circulation pump
X16A Plug connection for heating circulation pump PWM Pump connection (PWM signal)
X18A Plug connection to J11 from RoCon BM2C RJ45 CAN Internal wiring plug connection (RoCon BM2C) (to Ro-
Con+ B1)
X19A Plug connection to XAG1 RoCon+ B1 Controller control panel
X21A Plug connection for internal wiring (bridging plug) RoCon BM2C Printed PCB (basic controller module)
X26A Plug connection to TRA1 (230V) J2 Plug connection for 3UVB1
X31A Plug connection to TRA1 (12V) J3 Plug connection AUX switching contacts and cooling
output status output
X45A FlowSensor plug connection J5 Pressure sensor plug connection
AUX Switching contact outputs (A-A1-A2) + (B-B1) J6 Plug connection mains voltage
EKBUxx Backup heater J8 Plug connection for EXT
DS Pressure sensor Plug connection for EBA
EBA Switching contact for external requirement request Plug connection for Smart Grid EVU switching contacts
EXT Switching contact for external operating mode
changeover
Plug connection for HT/NT EVU switching contact
F1 Fuse 250V T 2A (RoCon BM2C) J10 Plug connection for internal wiring to X1A
SG Switching contact for Smart Grid (intelligent mains con-
nection)
J11 Plug connection for internal wiring to X18A (A1P)
TRA1 Transformer J12 Plug connection 3UV DHW
t
A
Outside temperature sensor J13 System bus plug connection (e.g. room station)
t
DHW1
Storage tank temperature sensor 1 (A1P) J14 Circulation pump P
Z
plug connection
t
V
Inflow temperature sensor (A1P) J15 Mains switch plug connection
t
V,BH
Backup heater inflow temperature sensor J16 Room thermostat (EKRTR / EKRTW) plug connection
EHS157068 Mixer module XAG1 Heat pump outdoor unit plug connection
EHS157034 Room station XBUH1 Backup heater plug connection (EKBUxx)
cooling output Status output for "Cooling" operating mode
(floor heating control connection cooling output)
X2M6 HPc-VK-1 connection cable clamp
RT Room thermostat (EKRTW) X2M7 HPc-VK-1 connection cable clamp
RT-E Receiver for wireless room thermostat (EKRTR) X11M Terminal strip in FWXV-ATV3
RTX-EHS Printed PCB (backup heater)
Tab.6-2 Key names for connection and wiring diagrams