STIEBEL ELTRON WPL 15 IKS-2, Эксплуатация и установка

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INSTaLLaTION
Commissioning
www.stiebel-eltron.com WPL 15 IKS | WPL 25 IK | 49
17 FROST PROTECT
To protect the heating system from frost, the heating circuit pumps
are started at the selected frost protection temperature; the re-
verse hysteresis is 1 K.
18 PRESET REM CON
Remote control FE 7 can be selected for both heating circuits
This parameters lets you pre-select which heating circuit the re-
mote control will affect. The current room temperature can be
called up.
19 FE CORRECTION
This parameter enables the calibration of the actual room tem-
perature.
20 ROOM INFLUENCE
Room influence for the FE 7 remote control
Standard setting 5 adjustable from ---- via 0 to 20 dashes (----)
on the display
With the FE 7 remote control connected, the room temperature
sensor only serves to record and display the actual room tempe-
rature. It has no control influence. Only in automatic mode can
the room temperature for heating circuit 1 or 2 be adjusted by ±
5 °C. This set value adjustment applies to the then current heating
time, not to the setback time.
At the same time, setting “0 to 20” serves to control the room
temperature-dependent night setback. This means that the hea-
ting circuit pump is switched off at the point of changeover from
the heating into the setback phase. It remains off until the actual
room temperature first drops below the set room temperature.
After this, the system continues to regulate in weather-compen-
sated mode.
If you want the room temperature to be taken into account, set
the room temperature sensor influence to > 0. The room sensor
influence has the same effect as the outside temperature sensor
has on the return temperature, except that the effect is 1 to 20
times greater, depending on the factor set.
Room temperature-dependent return/flow temperature with
weather compensation
With this type of control, a control cascade is formed from a re-
turn/flow temperature control that is subject to both weather and
room temperature. This means that the weather-compensated
return/flow temperature control sets a default return/flow tem-
perature that is corrected by the overriding room temperature
control in accordance with the following formula:
∆ϕ
R
= (ϕ
Rset
− ϕ
Ractual
) * S * K
Because a substantial proportion of the control is already handled
by the weather-compensated control, the room temperature sen-
sor compensation factor K can be set lower than with pure room
temperature control (K = 20). The figure below indicates how the
control operates with the set factor K = 10 (room influence) and a
heating curve S = 1.2.
Room temperature control with weather-compensation
This type of control offers two significant benefits:
Incorrectly set heating curves are corrected by the room sensor in-
fluence K; whilst the smaller factor K provides more stable control.
However, observe the following for all control units with room
temperature sensor influence:
- The room temperature sensor must capture the room tempe-
rature accurately.
- Open doors and windows greatly affect the control result.
- All radiator valves in the lead room must be fully open at all
times.
- The temperature inside the lead room affects the entire hea-
ting circuit.
If you want the room temperature to be taken into account, set
the room temperature sensor influence to > 0.
20
30
40
20
50
60
70
80
90
19 17 18 21 22 23 24 25
0
10
0 20 -20 15 10
5
-5 -10 -15
Y
X 1
Y
X 2
1
1
1
2
3
4
5
26
�0
3�
01
�1
91
7
Y Flow temperature [°C]
X 1 Room temperature [°C]
X 2 Outside temperature [°C]
1 Room temperature sensor influence at K = 10 and S = 1.2
and control dev/- 2 K
2 Heating curve S = 1.2
3 Weather-compensated set flow temperature at ϕA = -10 °C
4 Weather-compensated set flow temperature at ϕA = 0 °C
5 Weather-compensated set flow temperature at ϕA = +10
°C
21 DUAL-MODE HTG
Dual mode temperature of the heat pump for heating operation
Below this outside temperature, the electric emergency/booster
heater (DHC) is switched on for heating operation, subject to load.
22 DELAY DHC HTG
Start delay of the DHC heating stage required by the heat pump
manager
When the dual mode point is not achieved, the required DHC
heating stage is delayed by the time (in minutes) selected. This
reduces the comfort a little but the system operates with greater
energy efficiency.
23 MAX DHC HTG
Maximum number of DHC heating stages enabled by the heat
pump manager for the heating circuit
Subject to the required heating output, 1 to 3 DHC heating stages
may be enabled.