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Technical data
Installer reference guide
241
EPRA14~W1 + ETVH/9W(G)
Daikin Altherma 3 H HT F
4P587502-1 – 2019.07
S1S
# Preferential kWh rate power supply contact
S2S
# Electricity meter pulse input 1
S3S
# Electricity meter pulse input 2
S6S~S9S
* Digital power limitation inputs
SS1 (A4P)
* Selector switch
TR1
Power supply transformer
X6M
# Backup heater power supply terminal strip
X*, X*A, X*Y, Y*
Connector
X*M
Terminal strip
* Optional
# Field supply
Translation of text on wiring diagram
English
Translation
(1) Main power connection
(1) Main power connection
For preferential kWh rate power supply For preferential kWh rate power supply
Indoor unit supplied from outdoor
Indoor unit supplied from outdoor
Normal kWh rate power supply
Normal kWh rate power supply
Only for normal power supply
(standard)
Only for normal power supply
(standard)
Only for preferential kWh rate power
supply (outdoor)
Only for preferential kWh rate power
supply (outdoor)
Outdoor unit
Outdoor unit
Preferential kWh rate power supply
contact: 16 V DC detection (voltage
supplied by PCB)
Preferential kWh rate power supply
contact: 16 V DC detection (voltage
supplied by PCB)
SWB1
Switch box
Use normal kWh rate power supply for
indoor unit
Use normal kWh rate power supply for
indoor unit
(2) Backup heater power supply
(2) Backup heater power supply
Only for ***
Only for ***
(3) User interface
(3) User interface
Only for LAN adapter
Only for the LAN adapter
Only for remote user interface HCI
Only for the dedicated Human Comfort
Interface (BRC1HHDA used as room
thermostat)
SWB1
Switch box
(5) Ext. thermistor
(5) External thermistor
SWB1
Switch box
(6) Field supplied options
(6) Field supplied options
12 V DC pulse detection (voltage
supplied by PCB)
12 V DC pulse detection (voltage
supplied by PCB)