Daikin Altherma 3 R ECH2O Manual De Instalación Y Funcionamiento página 37

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  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
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