Daikin EKHBX030BA Installation Manual page 23

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 27.
(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 27.
EKHBH/X030BA
Indoor unit for air to water heat pump system
4PW62568-1 – 07.2010
[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)
.
When connecting the equipment to a benefit kWh rate
power supply, change field setting [D-01]. In case the
benefit kWh rate power supply is of the type that power
supply is not interrupted (like illustrated above as type 1)
change both field settings [D-01] and [D-00]. Refer to
"[D] Benefit kWh rate power supply/Local shift value
weather dependent" on page 33 of chapter "Field settings".
If the benefit kWh rate power supply is of the type that
power supply is not interrupted, the unit will be forced to
off. Controlling the solar pump is still possible.
4
When the benefit kWh rate signal is sent, the centralised
control indicator e will flash to indicate that the benefit
kWh rate is active.
Relocation of the digital controller
The digital controller is from factory located on the indoor unit. (See
4
"Main components" on page 10 for actual position). If required, the
digital controller can be repositioned.
Be aware that only 1 digital controller can be connected to the indoor
unit.
Wiring specifications
4 Wire specification
Type
Section
Maximum length
NOTE The wiring for connection is not included.
Mounting
NOTE The digital controller has to be mounted indoors.
1 Remove the front part of the digital controller.
Insert a slotted screwdriver into the slots (1)
in the rear part of the digital controller, and
remove the front part of the digital
controller.
2 Fasten the digital controller on a flat
surface.
Be careful not to distort the shape of the lower part of
NOTE
the digital controller by over tightening the mounting
screws.
Value
2 wire
AWG18 - AWG16
2
(0.75~1.25 mm )
1640 ft
(500 m)
1
Installation manual
21