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[2] Disinfection function
Applies only to installations with a domestic hot water tank.
The disinfection function disinfects the domestic hot water tank by
periodically heating the domestic hot water to a specific temperature.
CAUTION
The disinfection function field settings must be configured
by the installer according to the applicable legislation.
■ [2-00] Operation interval: day(s) of the week at which the
domestic hot water should be heated.
■ [2-01] Status: defines whether the disinfection function is
turned on (1) or off (0).
■ [2-02] Start time: time of the day at which the domestic hot
water should be heated.
■ [2-03] Set point: high water temperature to be reached.
■ [2-04] Interval: time period defining how long the set point
temperature should be maintained.
T
DHW
[2-03]
T
H
T
U
00.00
01.00
T
Domestic hot water temperature
DHW
T
User set point temperature (as set on the user interface)
U
T
High set point temperature [2-03]
H
t Time
WARNING
Be aware that the domestic hot water temperature at the
hot water tap will be equal to the value selected in field
setting [2-03] after a disinfection operation.
When the high domestic hot water temperature can be a
potential risk for human injuries, a mixing valve (field
supply) shall be installed at the hot water outlet connection
of the domestic hot water tank. This mixing valve shall
secure that the hot water temperature at the hot water tap
never rises above a set maximum value. This maximum
allowable hot water temperature shall be selected
according to the applicable legislation.
CAUTION
Make sure that the disinfection function start time [2-02]
with defined duration [2-04] is not interrupted by possible
domestic hot water demand.
Operation manual
15
[2-04]
22.00
23.00
24.00
t
[2-02]
[3] Auto restart
When power returns after a power supply failure, the auto restart
function reapplies the user interface settings at the time of the power
supply failure.
NOTICE
It is therefore recommended to leave the auto restart
function enabled.
Note that with the function disabled the schedule timer will not be
activated when power returns to the unit after a power supply failure.
Press the pr button to enable the schedule timer again.
■ [3-00] Status: defines whether the auto restart function is
turned ON (0) or OFF (1).
NOTICE
If the benefit kWh rate power supply is of the type that
power supply is interrupted, then always allow the auto
restart function.
If you feel unsure about this topic, contact your installer for
advice and information.
[4] Space heating off temperature
Space heating off temperature
■ [4-02] Space heating off temperature: outdoor temperature
above which space heating is turned off to avoid overheating.
[6] Scheduled storage and reheat domestic water heating
INFORMATION
The scheduled storage and reheat domestic water heating
will only be carried out when [4-03]=4 and the domestic
water heating mode is enabled by the
Scheduled domestic hot water storage
The storage set point can be accessed directly using the
wj
buttons.
■
[6-03] Scheduled storage: defines whether the scheduled
domestic water heating storage during night is enabled (1) or
not (0).
■
[6-04] Scheduled storage start time: time of the night at which
the domestic water should be heated.
w
button.
wi
and
EKCBX/H008BBV3
Unit for air to water heat pump system
4PW67442-1A – 12.2010
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