Stiebel Eltron SHP-F 220 Premium Utilisation Et Installation page 10

OPERATION
Settings
Operation with external signal transmitter
Material losses
!
See "Permissible voltage range for external signal trans-
mitters" in the "Specification/data table" chapter.
As standard, the appliances feature the ability to assign a spe-
cific, individual set DHW temperature ("set temperature 2") to a
connected external signal transmitter, such as a PV system or a
low tariff transmitter.
This set temperature 2 is activated if the terminal connected to
the external signal transmitter receives a signal (see "Electrical
connection/external signal transmitter connection option" chap-
ter). While activated, set temperature 2 replaces the standard set
DHW temperature (set temperature 1).
If set temperature 2 is activated by the external signal transmitter,
this set temperature will then be active for at least 20 minutes.
If the external signal remains active after these 20 minutes have
passed, the compressor will run until the external signal drops
out. If not, the selected set temperature 1 is re-enabled.
When the relevant DHW set temperature has been reached, the
compressor switches off and remains off for a minimum idle time
of 20 minutes.
The following diagram illustrates the connections by means of a
sample signal sequence from an external signal transmitter.
Example:
- Water temperature = 55 °C
- Set temperature 1 = 50 °C
- Set temperature 2 = 65 °C
A
1
0
0 5 10 15 20 25 30 35
B
1
0
0 5 10 15 20 25 30 35
A External signal
B Compressor
1 20 min. minimum runtime, set temperature 2
2 20 min. minimum compressor idle time
Note
An external signal must be present for at least 60 sec-
onds before the control unit responds to it. This will for
example prevent a brief burst of sunshine from triggering
a heat-up process, which due to a lack of further insola-
tion can then not be supplied with PV power generated
on site.
…  Fan speed
The current set fan output appears, iden-
tified by a preceding F.
10 | SHP-F 220-300 Premium
40 45 50 55 60 65 70 75 t [min]
40 45 50 55 60 65 70 75 t [min]
Note
Do not change the fan output. Your qualified contractor
has set this value during commissioning.
Air intake temperature display
… 
…  Enabilng the "runtime-dependent rapid heat-up" function
Note
Only use runtime-dependent rapid heat-up when re-
quired, and only at low intake temperatures, e.g. with
outdoor air operation in winter and in spring/autumn if
appropriate. Avoid using runtime-dependent rapid heat-
up at intake temperatures for which heating without the
electric emergency/booster heater normally covers the
prevailing demand. In such cases, selecting too short a
runtime leads to unnecessary electricity bills. The facto-
ry-preset runtime is 8 hours and should not be less than
this with the function activated continuously.
To prevent excessive power consumption, disable the
function in summer and in spring/autumn if at all pos-
sible.
1 For improved comfort, the appliance offers runtime-dependent
2
rapid heat-up. If the selected set temperature is not reached by the
heat pump after a user-defined period, the appliance switches on
the electric emergency/booster heater in parallel to back up the
heat pump (subject to this function being enabled). Once the set
value has been reached, the electric emergency/booster heater
remains inactive until the set time has elapsed again following a
heat demand. As a factory default, this function is disabled.
In the case of installation with outdoor air intake, we recommend
enabling "runtime-dependent rapid heat-up" during the winter
months and as required in spring/autumn when outside temper-
atures are low. This prevents any loss of comfort if, say, the heat
pump output falls as a result of the outside temperature dropping
when taking in outdoor air, and the heat-up time is thus extended.
The period after which the electric emergency/booster heater
provides automatic back-up needs to be selected individually by
the user based on local conditions. DHW consumption and the
expected intake temperatures need to be considered.
This function is set in two stages. First enable the function and set
the runtime in the second parameter.
An "A" appears as the intake temperature
symbol.
The current air intake temperature is
displayed.
The air intake temperature is only dis-
played while the appliance fan is run-
ning. If it is not possible to establish an
air intake temperature, two dashes are
shown.
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