Installation manual
30
EKHBH/X008BA
Indoor unit for air to water heat pump system
4PW54185-1B
[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-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
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
(1)
.
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
(2)
.
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.
[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
■
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.
[D-00]
Compressor
Back up heater
Booster heater
0
(default)
Forced off
Forced off
Forced off
1
Forced off
Forced off
Permitted
2
Forced off
Permitted
Forced off
3
Forced off
Permitted
Permitted
[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,
(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
(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
YC Y1 Y2 Y3 Y4
X1
X2
X3
X4
OFF ON
X2M
SS1
X1M
T
t
Target water temperature
T
A
Outdoor temperature
range
Range
local shift
value
Local shift value
[1-00], [1-01],
[1-02], [1-03]
Applicable field setting of the weather dependent set
point [1]
[D-03]
Outdoor temperature range
(T
A
)
Local shift value
0
—
—
1
–2°C~2°C
2
2
4
3
–4°C~4°C
2
4
4
NOTE
[E-03] and [E-04] readouts are not permanently
refreshed. Temperature readouts are updated
after looping through the field setting first codes
again only.
T
A
T
t
[1-03]
[1-00]
0
°
C
[1-01]
[1-02]
local shift value
range
