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7
Refrigerant leak
Check the inside of the unit on refrigerant leakage. If there is a
refrigerant leak, call your local dealer.
Do not touch any refrigerant which has leaked out of refrigerant
piping connections.
This may result in frostbite.
8
Water leak
Check the inside of the unit on water leakage. In case there is a
water leakage close the water inlet and water outlet shut-off
valves and call your local dealer.
9
Power supply voltage
Check the power supply voltage on the local supply panel. The
voltage must correspond to the voltage on the identification label
of the unit.
Once all checks are fulfilled, the unit must be closed, only then can
the unit be powered up. When the power supply to the indoor unit is
turned on, "88" is displayed on the remote controller during its
initialization, which might take up to 30 seconds. During this process
the remote controller can not be operated.
10.2. Field settings
The unit should be configured by the installer to match the user
demand. Thereto, a number of so called field settings are available.
These field settings are accessible and programmable through the
user interface on the unit.
Each field setting is assigned a 3-digit number or code, for example
[2-01], which is indicated on the user interface display. The first digit
[2] indicates the 'first code' or field setting group. The second and
third digit [013] together indicate the 'second code'.
A list of all field settings and default values is given in the
settings table" on page
22. In this list we provided for 2 columns to
register the date and value of altered field settings at variance with
the default value.
A detailed description of each field setting is given under
description" on page
19.
NOTICE
Field setting [2] depends on the relevant local and national
regulations.
Before changing these settings, the new values shall be
confirmed by the installer and/or shall be according to the
local and national regulations.
EKHVWQ002AAV3 + EKHHS200+260AA1V3
Domestic hot water heat pump
4PW65342-1A – 10.2010
Different domestic hot water tank operation modes
To understand the field setting possibilities explained in the following
chapters, understand that different domestic hot water tank operation
modes are possible.
■
Powerfull operation
■ If the P button is pressed, the heat pump module heats up
the domestic hot water tank as fast as possible to a
predefined setpoint. This means that the inverter compressor
frequency will be higher then in normal operation mode and
that sound level and power consumption can be higher.
This mode might be usefull when exceptional high hot water
consumption depletes all the available domestic hot water
and hot water is required.
■ Depending on settings, simultaneous heat pump operation
and booster heater operation can occur.
INFORMATION
The unit increases the domestic hot water temperature by
using the indoor stored heat.
The powerful mode might not function properly when the
room ambient temperature is too low.
■
Disinfection operation
■ This mode will disinfect the domestic hot water tank by
periodically heating the domestic water to a high tempera-
ture. This can be required for e.g. legionella prevention.
■ This mode is enabled by default.
Refer to the chapter
detailed description how to set one or more field settings.
-
[0-01] Set point: Disinfection water temperature to be
reached (see figure
"Field
-
[2-00] Operation interval: day of the week at which the
domestic water should be heated.
-
[2-01] Status: defines whether the disinfection function is
turned ON (1) or OFF (0).
"Detailed
-
[2-02] Start time: time at which the disinfection operation is
started.
-
[2-04] Duration: time period defining how long the disinfection
set point temperature should be maintained.
Even when the unit is in OFF mode, disinfection operation can
work (depending on field setting [2-03]).
■
Reheat operation
This mode will prevent the domestic hot water from cooling down
lower than a certain temperature. When enabled the unit will
heat up the domestic hot water tank when the reheat minimum
value is reached. This heating will continue until the reheat
maximum temperature is reached.
This means that the unit can heat up continuously and e.g. not
limited to night time operation. This reheat operation is only valid
when schedule timer operation is enabled and not active.
■
Automatic operation
■ This operation mode contains a learning function to predict
the daily hot water consumption. It will calculate and predict
the optimum tank temperature setpoint based on the user
tapping history.
Enabling this operation mode will keep the tank temperature
as low as possible but to a temperature which guarantees a
high comfort level.
■ The advantage of a low tank temperature setpoint are :
-
Reduced heatlosses
-
Better unit performance, the lower the tank temperature the
better the heat up coefficient of performance (COP).
-
Lower electric power consumption
■ Refer to the operation manual for a detailed description.
"Detailed description" on page 19
"[2] Disinfection operation" on page
Installation manual
for a
19).
17
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