Daikin Altherma 3 R F Installer's Reference Manual page 133

ERLA03DAV3 + EHFZ03S18DJ3V
Daikin Altherma 3 R F
4P596821-1 – 2019.10
Preferential kWh rate power supply
INFORMATION
The preferential kWh rate power supply contact is connected to the same terminals
(X5M/9+10) as the safety thermostat for the additional zone. It is only possible for
the system to have EITHER preferential kWh rate power supply OR a safety
thermostat for the additional zone.
# Code
N/A [D‑01]
N/A [D‑00]
N/A [D-05]
Description
Connection to a preferential kWh rate power
supply or a safety thermostat:
▪ 0: The outdoor unit is connected to a normal
power supply.
▪ 1: 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: 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: A safety thermostat is connected to the
system (normal closed contact)
Which heaters are allowed to operate during
preferential kWh rate power supply?
▪ 0: None
▪ 1: N/A
▪ 2: BUH only
▪ 3: N/A
See table below.
Setting 2 is only meaningful if the preferential
kWh rate power supply is of type 1 or indoor unit
is connected to a normal kWh rate power supply
(via X2M/5-6) and the backup heater is NOT
connected to the preferential kWh rate power
supply.
Forced pump OFF :
▪ 0: Forced off
▪ 1: As normal
9 Configuration
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Installer reference guide
133