Daikin EKHBX008BA Series Installation Manual page 32

The combination of setting [4-03]=0/2 with
bivalent operation at low outdoor temperature
can result in domestic hot water shortage.
The bivalent operation function has no impact on
the domestic water heating mode. The domestic
hot water is still and only heated by the indoor
unit.
The permission signal for the auxiliary boiler is
located on the EKRP1HB (digital I/O PCB).
When it is activated, the contact X1, X2 is closed
and open when it is disactivated. See figure for
the schematic location of this contact.
X2M
[D] Benefit kWh rate power supply/Local shift value weather
dependent
Benefit kWh rate power supply
[D-00] Switching off heaters: Defines which heaters are
switched off when the benefit kWh rate signal of the
electricity company is received.
If [D-01]=1 or 2 and the benefit kWh rate signal of the
electricity company is received, following devices will be
switched off:
[D-00] Compressor
0 Forced off
(default)
1 Forced off
2 Forced off
3 Forced off
[D-00] settings 1, 2 and 3 are only meaningful if the
benefit kWh rate power supply is of the type that
power supply is not interrupted,
[D-01] Unit connection to benefit kWh rate power supply:
Defines whether or not the outdoor unit is connected to a
benefit kWh rate power supply.
If [D-01]=0, the unit is connected to a normal power supply
(default value).
If [D-01]=1 or 2, the unit is connected to a benefit kWh rate
power supply. In this case the wiring requires specific
installation like explained in
rate power supply" on page
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
(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
(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
Installation manual
30
OFF ON
SS1
X1M
YC Y1 Y2 Y3 Y4
Back up heater Booster heater
Forced off Forced off
Forced off Permitted
Permitted Forced off
Permitted Permitted
"Connection to a benefit kWh
19.
24.
24.
Local shift value weather dependent
The local shift value weather dependent field setting is only relevant
in case weather dependent set point (see field setting
dependent set point (heating operation only)" on page
selected.
[D-03] Local shift value weather dependent: determines the
shift value of the weather dependent set point around
outdoor temperature of 0°C.
T
t
[1-02]
[1-03]
[1-00]
T
t
T
A
range
local shift
value
[1-00], [1-01],
[1-02], [1-03]
[D-03]
0
1
2
3
4
[E] Unit information readout
[E-00] Readout of the software version (example: 23)
[E-01] Readout of the EEPROM version (example: 23)
[E-02] Readout of the unit model identification (example: 11)
[E-03] Readout of the liquid refrigerant temperature
[E-04] Readout of the inlet water temperature
NOTE
(1)
.
(2)
.
local shift value
range
0°C [1-01]
T
A
Target water temperature
Outdoor temperature
Range
Local shift value
Applicable field setting of the weather dependent set
point [1]
Outdoor temperature range
(T )
A
—
–2°C~2°C
–4°C~4°C
[E-03] and [E-04] readouts are not permanently
refreshed. Temperature readouts are updated
after looping through the field setting first codes
again only.
Indoor unit for air to water heat pump system
"[1] Weather
24) is
Local shift value
—
2
4
2
4
EKHBH/X008BA
4PW54185-1B