16
Groundtherm - Ground Source Heat Pump -
Installation
5.4 oPtIonal weatHeR ComPenSatIon
Function
Switch position on the left
Symbol
Symbol Switch position on the right
Suggested
Setting
Base point of heating
curve
Base point at 20 °C flow
temperature
35°C
Base point at 35 °C flow tem-
Set to left
Set to right
Set to left
Set to right
perature
Frost protection, yes / no Yes, frost protection
No, no frost protection
Changeover of compen-
sating variable, yes / no
No changeover; always
weather-compensated con-
trol and room temperature
authority according to set-
ting of potentiometer E
Changeover to room tem-
perature-compensated control
at a reduced level
Pump overrun, yes / no
Six-minute pump overrun
0 Min.
0 minutes, no pump overrun
Potentiometer Function
Item
Setting range
Guide value
Suggested Setting
Switching differential
1
4
5
of heat pump
temperature control
1…20 K
6 K
Authority of room
temperature on heat
pump temperature
control
0…100 % authority
OFF = quick
setback is inactive
50 % (quick setback
is active)
Heating limit for ECO
automatic
energy saver
–10…+8 °C
(referred to the room
temperature setpoint)
–3 K (gives a heating
limit of 16 °C at a
room temperature
setpoint of 20 °C)
Function disabled:
Set to OFF
Set to 5 K
OFF
setting Potentiometers (items 1 , 4 , 5 )
Coding switches (item 3 )
The use of a weather compensator with Ideal Groundtherm heat pumps achieves greater efficiency benefits.
An example of using the siemens model RVP102 follows.
WEATHER COMPENSATOR UNIT
1. Setting potentiometer for switching differential.
2. Setting knob for heating curve slope.
3. Coding switches
4. Setting potentiometer for authority of room
temperature for quick setback active/inactive.
5. Setting potentiometer for ECO heating limit.
6. Heating curve chart.
LEGEND
1
2
3
4
5
6