Daikin Altherma 3 R F Installer's Reference Manual page 199

Water pipe freeze prevention
Preferential kWh rate power supply
ERGA04~08EAV3(A) + EHVH04+08SU18+23EA6V
Daikin Altherma 3 R F
4P629090-1 – 2020.08
# Code
[9.6.7] [8-04]
Only relevant for installations with water piping outdoors. This function tries to
protect outdoor water piping from freezing.
# Code
[9.7] [4-04]
NOTICE
Water pipe freeze prevention. Even if you turn OFF space heating/cooling operation
([C.2]: Operation > Space heating/cooling), water pipe freeze prevention –if
enabled– will remain active.
# Code
[9.8.1] [D-01]
Description
Additional timer: Additional running time
for the maximum running time depending on the
outdoor temperature [4-02] or [F-01].
Range: 0~95 minutes
Description
Water pipe freeze prevention:
▪ 0: Intermittent
▪ 1: Continuous
▪ 2: Off
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)
10 Configuration
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Installer reference guide
199