Fan Mode - STIEBEL ELTRON WWS 20 Bedienung Und Installation

OPERATION
Menu structure
4.3.2 DHW value setting
You are in the standard display.
f Press the Menu button. f
The DHW heating submenu appears.
f Press the Up button. f
The set DHW value submenu appears.
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1 Set DHW value display (set value 1)
2 Current set DHW value
f Press the OK button to confirm your selection. f
The set DHW value flashes.
f Set the required DHW value using the Up/Down buttons. f
f Confirm your entry with the OK button. f
f Keep pressing the Back button to return to the standard f
display.
4.3.3 Pasteurisation function
The pasteurisation function is used to meet hygiene require-
ments. It is implemented using the heat pump and other active
heat sources. The DHW cylinder is heated periodically to the set
pasteurisation value (set value 2).
Symbol Parameter Description
2 60 Set pasteurisation value: Set temperature in the
DHW cylinder for the pasteurisation function (fac-
tory setting = 60 °C)
hour Pasteurisation function start time
(factory setting = 00:00)
dAY Pasteurisation function time interval: The time
interval during which the pasteurisation function
is periodically implemented
(factory setting = 0)
PSEt b02 Maximum pasteurisation function heat-up time: If
└ SEt
the set pasteurisation value is not achieved within
the time set here, the heat-up process is termi-
nated (see chapter "Parameter level / Parameter
setting").
(factory setting = 4.0 h)
Note
The pasteurisation function may be influenced by the
DHW heating time program.
f Set the pasteurisation function start time in the peri- f
od where DHW heating is enabled.
Note
If the power supply has been interrupted, e.g. following a
power failure, the selected heat-up time can be extended
up to 6 hours.
44 | WWS 20
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4.4

Fan mode

The fan can be switched on irrespective of the heat pump mode.
For this fan mode, you can set the fan speed and a time program.
Alternatively, the fan can be switched on and off via an external
switching input.
Fan mode setting
Symbol Parameter Description
Auto Fan mode selection
oFF = Fan switched off (factory setting)
on = Fan operating at rated speed, compressor
active
Auto = Automatic mode (fan operating via separate
time program)
SEt Fan speed (automatic mode)
Stage* 0
%
(factory setting = 9)
on Fan start time (automatic mode)
(factory setting = 00:00)
oFF Fan stop time (automatic mode)
(factory setting = 23:59)
PSEt A04 Function of switching input E3
└ SEt
0 = No function (factory setting)
3 = External fan control:
K3 open = Fan switched off, no DHW demand
K3 closed = Fan operates at set speed
* The fan stage data is based on a freely blowing appliance
with no external air routing lines.
Example switching diagram:
1
1 Compressor active (light grey)
2 Fan operating at rated speed
3 Compressor switched off (dark grey)
4 Fan in automatic mode, independently of compressor
5 Fan stage curve
4.4.1 External fan control
Alternatively, the fan can be switched on and off from an external
control unit via switching input E3 (see chapter "Junction box").
To do this, fan mode selection must be set to "Auto". The time
program for fan mode takes priority over the external fan control,
so switching input E3 is active only while fan mode is enabled.
1 2 3 4 5 6 7
0 45 60 71 81 89 94 98 99
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100