Daikin Altherma 3 R ECH2O Installation Und Betriebsanleitung Seite 37

6‒6 Key names for connection and wiring diagrams
Item Name
Heat pump outdoor unit
Heat pump indoor unit
3UVB1 3‑way changeover valve (internal heat generator
circuit)
3UV DHW 3‑way changeover valve (hot water/heating)
a Switch box
A1P Printed PCB (heat pump basic control)
AUX Switching contact outputs (A-A1-A2) + (B-B1)
b Switch box cover
cooling output Status output for "Cooling" operating mode
(floor heating control connection cooling output)
DS Pressure sensor
EBA Switching contact for external requirement request
EHS157034 Room station
EHS157068 Mixer module
EKBUxx Backup heater
EXT Switching contact for external operating mode
changeover
F1 Fuse 250 V T 2 A (RoCon BM2C)
FLS FlowSensor
HT/NT Switching contact for low rate mains connection
P Heating circulation pump (connected inside the device) K2
P Circulation pump
Z
PWM Pump connection (PWM signal)
RJ45 CAN Internal wiring plug connection (RoCon BM2C) (to
RoCon+ B1)
RoCon BM2C Printed PCB (basic controller module)
RoCon+ B1 Controller control panel
RT Room thermostat (EKRTW)
RT-E Receiver for wireless room thermostat (EKRTR)
RTX-EHS Printed PCB (backup heater)
SG Switching contact for Smart Grid (intelligent mains
connection)
T Outdoor temperature sensor
A
TRA1 Transformer
t Storage tank temperature sensor 1 (RoCon BM2C)
DHW1
t Storage tank temperature sensor 2 (A1P)
DHW2
t Return temperature sensor (A1P)
R
t Flow temperature sensor (A1P)
V
t Backup heater flow temperature sensor
V, BH
Daikin Altherma EHS(X/H)(B)-D
Daikin Altherma 3 R ECH₂O
008.1451099_00 – 07/2020
Item Name
J2 Plug connection 3UVB1
J3 Plug connection AUX switching contacts and cooling
output status output
J5 Pressure sensor plug connection
J6 Plug connection mains voltage
J8 Plug connection for EXT
Plug connection for EBA
Plug connection for Smart Grid EVU switching contacts
Backup heater infeed temperature sensor plug
connection t
V, BH
Plug connection for storage tank temperature sensor
t
DHW1
Plug connection for HT/NT EVU switching contact
J10 Plug connection for internal wiring to X1A
J11 Plug connection for internal wiring to X18A (A1P)
J12 Plug connection 3UV DHW
J13 System bus plug connection (e.g. room station)
J14 Circulation pump P
J15 Mains switch plug connection
J16 Room thermostat (EKRTR/EKRTW) plug connection
K1 Relay 1 for backup heater
Relay 2 for backup heater
K3 Relay 3 for backup heater
X1 Terminal strip for backup heater mains connection
X3 Internal wiring plug connection to J17 (RoCon BM2C)
X1A Plug connection to J10 from RoCon BM2C
X3A Plug connection for internal wiring (bridging plug)
X4A Plug connection for FLS flow sensor and t
X5A Plug connection for t
X7A Plug connection for temperature sensor (refrigerant
fluid) t
DC
X8A Plug connection for return temperature sensor t
X16A Plug connection for heating circulation pump
X18A Plug connection to J11 from RoCon BM2C
X19A Plug connection to XAG1
X21A Plug connection for internal wiring (bridging plug)
X22A Plug connection for XTA1
X26A Plug connection to TRA1 (230 V)
X31A Plug connection to TRA1 (12 V)
X2M6 HPc-VK-1 connection cable clamp
X2M7 HPc-VK-1 connection cable clamp
X11M Terminal strip in FWXV-ATV3
XAG1 Heat pump outdoor unit plug connection
XBUH1 Backup heater plug connection (EKBUxx)
XAG1 Heat pump outdoor unit plug connection
XTA1 Outdoor temperature sensor terminal strip T
6 Technical data
plug connection
Z
DHW2
flow temperature sensor
V
R
A
Installation and operating manual
37