Daikin Altherma 3 WS EWSAH06UD 9W Series Installer's Reference Manual page 199

Benefit kWh power supply
EWSAH/X06UD
Daikin Altherma 3 WS
4P675765-1 – 2022.04
# Code
[9.7] [4-04]
INFORMATION
The preferential kWh rate power supply contact is connected to the same terminals
(X5M/9+10) as the safety thermostat. Thus, the system can have EITHER preferential
kWh rate power supply OR a safety thermostat.
# Code
[9.8.1] [D-01]
Description
Water pipe freeze prevention:
▪ 2: Off (read only)
Description
Connection to a Benefit kWh power supply
or a Safety thermostat:
▪ 0 No: The outdoor unit is connected to a
normal power supply.
▪ 1 Open: The outdoor unit is connected to a
preferential kWh rate power supply. When the
preferential kWh rate signal is sent by the
electricity company, the contact will open and
the unit will go in forced off mode. When the
signal is released again, the voltage-free
contact will close and the unit will restart
operation. Therefore, always enable the auto
restart function.
▪ 2 Closed: The outdoor unit is connected to a
preferential kWh rate power supply. When the
preferential kWh rate signal is sent by the
electricity company, the contact will close and
the unit will go in forced off mode. When the
signal is released again, the voltage-free
contact will open and the unit will restart
operation. Therefore, always enable the auto
restart function.
▪ 3 Safety thermostat: A safety thermostat
is connected to the system (normal closed
contact)
11 Configuration
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Installer reference guide
199