Rotex RKHBH008BA Installation Manual page 75

[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 "Connection to a benefit kWh
rate power supply" on page 19.
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
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 "[1] Weather
dependent set point (heating operation only)" on page 24) is
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]
local shift value
range
[1-03]
[1-00] 0°C [1-01]
T Target water temperature
t
T Outdoor temperature
A
range Range
local shift Local shift value
value
[1-00], [1-01], Applicable field setting of the weather dependent set
[1-02], [1-03] point [1]
(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 24.
(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 24.
RKHBH/X008BA
Indoor unit for air to water heat pump system
4PW54224-1A
Back up heater Booster heater
Forced off Forced off
Forced off Permitted
Permitted Forced off
Permitted Permitted
(1)
.
(2)
.
T
A
Outdoor temperature range
(T )
[D-03]
A
0 —
1
–2°C~2°C
2
3
–4°C~4°C
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
[E-03] and [E-04] readouts are not permanently
NOTE
refreshed. Temperature readouts are updated
after looping through the field setting first codes
again only.
[F] Option setup
Pump operation
The pump operation field setting apply to the pump operation logic
only when DIP switch SS2-3 is OFF.
When the pump operation function is disabled the pump will stop if
the outdoor temperature is higher than the value set by [4-02] or if the
outdoor temperature drops below the value set by [F-01]. When the
pump operation is enabled, the pump operation is possible at all
outdoor temperatures. Refer to "Pump operation configuration" on
page 22.
■ [F-00] Pump operation: specifies wether the pump operation
function is enabled (1) or disabled (0).
Space cooling permission
■ [F-01] Space cooling permission temperature: defines the
outdoor temperature below which space cooling is turned off.
This function is only valid for RKHBX when space
cooling is selected.
Bottom plate heater control
Applies only to installation with an outdoor unit RRLQ or in case the
option bottom plate heater kit is installed.
■ [F-02] Bottom plate heater ON temperature: defines the
outdoor temperature below which the bottom plate heater will
be activated by indoor unit in order to prevent ice build-up in
the bottom plate of the outdoor unit at lower outdoor
temperatures.
■ [F-03] Bottom
plate
temperature difference between bottom plate heater ON
temperature and the bottom plate heater OFF temperature.
Bottom plate heater
ON
[F-03]
OFF
[F-02]
T Outdoor temperature
A
CAUTION
The bottom plate heater is controlled via X14A. Make sure
[F-04] is correctly set.
Local shift value
—
2
4
2
4
heater hysteresis: defines
T
A
Installation manual
the
30