Altherma EKHBHE008AA3V3, Operation Manual

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EKHBH/XE008AA3V3
Indoor unit for air to water heat pump system and options
4PW48442-1B
Operation manual
14
[8] Domestic water heating mode timer
Applies only to installations with a domestic hot water tank.
The 'domestic water heating mode timer' field settings defines the
minimum and maximum domestic water heating times, and minimum
time between two domestic water heating cycli.
■
[8-00] Minimum running time: specifies the minimum time
period during which domestic water heating should be
activated, even when the target domestic hot water
temperature has already been reached.
■
[8-01] Maximum running time: specifies the maximum time
period during which domestic water heating can be activated,
even when the target domestic hot water temperature has
not yet been reached.
Note that when the unit is configured to work with a room
thermostat (refer to the installation manual), the maximum
running timer will only be taken into account when there is a
request for space cooling or space heating. When there is no
request for room cooling or room heating, domestic water
heating by the heat pump will continue until the 'heat pump
OFF temperature' (see field settings
"[6] DT for domestic
water heating" ) is reached. When no room thermostat is
installed, the timer is always taken into account.
■
[8-02] Anti-recycling time: specifies the minimum required
interval between two domestic water heating cycli.
[9] Cooling and heating set points
The purpose of this field setting is to prevent the user from selecting
a wrong (i.e., too hot or too cold) leaving water temperature. Thereto
the heating temperature set point range and the cooling temperature
set point range available to the user can be configured.
■
[9-00] Heating set point upper limit: maximum leaving water
temperature for heating operation.
■
[9-01] Heating set point lower limit: minimum leaving water
temperature for heating operation.
■
[9-02] Cooling set point upper limit: maximum leaving water
temperature for cooling operation.
■
[9-03] Cooling set point lower limit: minimum leaving water
temperature for cooling operation.
■
[9-04] Overshoot setting: defines how much the water
temperature may rise above the setpoint before the
compressor stops. This function is only applicable in heating
mode.
[C] Solar priority mode
■
[C-00] For information concerning the EKSOLHW solar kit, refer
to the installation manual of that kit.
■
[C-01] Defines the logic of the alarm output on the EKRP1HB
remote alarm input/output PCB.
If [C-01]=0, the alarm output will be powered when an alarm
occurs (default).
If [C-01]=1, the alarm output will not be powered when an alarm
occurs. This field setting allows for distinction between detection
of an alarm and detection of a power failure to the unit.
[D] Restricted power supply condition mode
[D-02] is set to 1 by default: The restricted power supply condition
mode is enabled. Do not change this value.
[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
Before changing field settings for domestic water heating,
read attentively the warnings mentioned in the paragraph
"Introduction" on page 2 .
1 Domestic water heating (1 = active, 0 = not active)
2 Hot water request (1 = request, 0 = no request)
t Time
■
In case of a floor heating application, it is important to
limit the maximum leaving water temperature at
heating operation according to the specifications of
the floor heating installation.
■
In case of a floor cooling application, it is important to
limit the minimum leaving water temperature at
cooling operation to 16°C to prevent condensation on
the floor.
t
1
0
1
0
[8-01] [8-02]
[8-00]
[C-01] Alarm No alarm
No power supply
to unit
0
(default) Closed output Open output Open output
1 Open output Closed output Open output
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.