Flow Setpoint, Weather Compensation & Room Infl Uence - andrews COMBIflo 100/300 Manual

Menu: Heating circuits
Flow temp setpoint min/ max
Using this limitation, a temperature
range for the flow temperature setpoint
can be defined. If the flow temperature
setpoint demanded by the heating cir-
cuit reaches the relevant limit and the
heat request increases or decreases,
the flow temperature setpoint will be
maintained at the maximum or mini-
mum limit.
Room influence
Type of compensation
When a room temperature sensor is
used, there is a choice of 3 different
types of compensation.
Pure weather compensation
The flow temperature is calculated via
the heating curve, depending on the
composite outside temperature. This
type of compensation calls for a correct
adjustment of the heating curve since in
this case the control gives no conside-
ration to the room temperature.
Weather compensation with room
influence
Deviations of the actual room tempera-
ture from the setpoint are acquired and
taken into account when controlling the
temperature. Heat gains can thus be
considered, facilitating more accurate
room temperature control. The authority
of deviation is set as a percentage
figure. The better the reference room
(correct room temperature, correct
mounting location, etc.) the higher the
value can be set.
Example:
Approx. 60 % Good reference room
conditions
Approx. 20 % Unfavorable reference
room
Andrews COMBIfl o
Line no. Operating line
HC1 HC2
740 1040 Flow temp setpoint min
741 - Flow temp setpoint max HC1
- 1041 Flow temp setpoint max HC2
742 - Flow temp setpoint room stat HC1
- 1042 Flow temp setpoint room stat HC2
Legend
TVw
TVmax
TVmin
Line no. Operating line
HC1 HC2
750 1050 Room influence
Setting
- - - %
1...99 %
100 %
* Outside sensor required.
To activate the function, following must
be considered:
• A room sensor must be connected
• Room influence must be set to a value
between 1 and 99 %
• There should be no thermostatic ra-
diator valves in the reference room
(mounting location of the room sensor)
(if such valves are present, they must
be set to their fully open position).
11
Current flow temperature setpoint
Flow temperature setpoint maximum
Flow temperature setpoint minimum
Type of compensation
Pure weather compensation *
Weather compensation with room influence *
Pure room compensation
Pure room compensation
The flow temperature is controlled
depending on the room temperature
setpoint, the current room temperatu-
re and the progression of the room
temperature. For example, a slight
increase of the room temperature
causes an immediate drop of the fol-
lowing temperature.
To activate the function, following must
be considered:
• A room sensor must be connected
• Room influence must be set to 100 %
• There should be no thermostatic radi-
ator valves in the refernce room
(mounting location of the room sensor)
(if such valves are present, they must
be set to their fully open position)
Factory setting
8°C
80°C
80°C
65°C
65°C
Factory setting
20%
Controls programming guide