4
x
Set-up and installation
Short
designation
J9
Plug connection FLS (t
J10
Plug connection internal cabling to X19A (A1P)
J11
Plug connection internal cabling to X18A (A1P)
J12
Plug connection 3UV DHW
J13
Plug connection System-Bus (e.g. room station)
J14
Plug connection circulation pump P
J15
Plug connection internal cabling (strapping plug)
Plug connection room thermostat (EKRTR /
J16
EKRTW)
EHS157068 Mixer module
EHS157034 Room station
Cooling out-
Output status for "Cooling" operating mode
put
RT
Room thermostat (EKRTW)
RT-E
Receiver for radio room thermostat (EKRTR)
RTX-EHS
Switch board (Backup-Heater)
K1
Relay 1 for Backup-Heater
K2
Relay 2 for Backup-Heater
K3
Relay 3 for Backup-Heater
Terminal block for mains connection to Backup-
X1
Heater
Plug connection internal cabling to J17
X3
(RoCon BM1)
Tab. 4-4 Key names for connections and circuit diagrams - Part 2
Installation and operating instructions
38
Key names
Explanation
/ V1)
R1
Z
Short
designation
Switching contact for Smart Grid (intelligent mains
SG
connection)
TRA1
Transformer
t
External temperature sensor (RoCon OT1)
AU
t
Storage tank temperature sensor 1 (RoCon BM1)
DHW1
t
2 (A1P) storage tank temperature sensor
DHW2
Return flow temperature sensor 1 (FLS - RoCon
t
R1
BM1)
t
Return flow temperature sensor 2 (A1P)
R2
t
Flow temperature sensor 1 (A1P)
V1
t
Flow temperature sensor Backup-Heater (A1P)
V, BH
V1
Flow sensor (FLS - RoCon BM1)
XAG1
Plug connection exterior heat pump unit
XBUH1
Plug connection Backup-Heater (EKBUxx)
X2M6
Connecting cable clamp HPc-VK-1
X2M7
Connecting cable clamp HPc-VK-1
X11M
Terminal block in FWXV(15/20)AVEB
Explanation
Daikin Altherma EHS(X/H)
Daikin Altherma integrated solar unit
008.1441399_02 – 01/2021 – EN