Daikin EKHBH054BA Manuel D'installation page 22

The indoor unit is designed to receive an input signal by which the
unit switches into forced off mode. At that moment, the outdoor unit
compressor will not operate.
CAUTION
For a benefit kWh rate power supply like illustrated
below as type 1
If the benefit kWh rate power supply is of the type that
power supply is not interrupted, then control of the
heaters is still possible.
For the different possibilities of controlling heaters at
moments that benefit kWh rate is active, refer to
"[D] Benefit kWh rate power supply/Local shift value
weather dependent" on page 33.
If heaters must be controlled at moments that the
benefit kWh rate power supply is off, then these
heaters shall be connected to a separate power
supply.
During the period that the benefit kWh rate is active
and power supply is continuous, then stand-by power
consumption is possible (PCB, controller, pump, ...).
For a benefit kWh rate power supply like illustrated
below as types 2 or 3
If during benefit kWh rate power supply the power supply is
shut off, then heaters can not be controlled.
This power supply interruption should not be longer
than 2 hours, otherwise the real time clock of the
controller will be reset.
During power supply interruption, the controller
display will be blank.
Installation manual
20
Possible types of benefit kWh rate power supply
Possible connections and requirements to connect the equipment to
such power supply are illustrated in the figure below:
[D-01]=1
1 L N
1
2 S2S
3
L N
2
1
2 S2S
3
3 L N
1
S2S
2
3
3
17 18
X40A
1 Benefit kWh rate power supply box
2 Receiver controlling the signal of the electricity company
3 Power supply to outdoor unit
(refer to the installation manual delivered with the outdoor unit)
4 Voltage free contact to indoor unit
When the outdoor unit is connected to a benefit kWh rate power
supply, the voltage free contact of the receiver controlling the benefit
kWh rate signal of the electricity company must be connected to
clamps 17 and 18 of X2M (as illustrated in the figure above).
When parameter [D-01]=1 at the moment that the benefit kWh rate
signal is sent by the electricity company, that contact will open and
the unit will go in forced off mode
When parameter [D-01]=2 at the moment that the benefit kWh rate
signal is sent by the electricity company, that contact will close and
the unit will go in forced off mode
Type 1
This type of benefit kWh rate power supply is not interrupted.
Type 2
This type of benefit kWh rate power supply is interrupted after elapse
of time.
Type 3
This type of benefit kWh rate power supply is interrupted
immediately.
(1) When the signal is released again, the voltage free contact will close and the unit
will restart operation. It is therefore important to leave the auto restart function
enabled. Refer to "[3] Auto restart" on page 26.
(2) When the signal is released again, the voltage free contact will open and the unit
will restart operation. It is therefore important to leave the auto restart function
enabled. Refer to "[3] Auto restart" on page 26.
Indoor unit for air to water heat pump system
[D-01]=2
1 L N
1
2 S2S
4 3
L N
2
1
2 S2S
4 3
3 L N
1
S2S
2
4 3
4
X2M
A1P
(1)
.
(2)
.
EKHBH/X054BA
4PW54216-1
4
4
4