Controller pack
Service Manual
84
Heating control functions
SMGB0066 rev.0 - 12/2009
4.3.2.2. room Temperature Compensation
function
•
If room compensation is enabled, the calculated OTC supply setpoint is adjusted based on the difference between room
temperature and room setpoint in order to reduce the room error. The amount of room influence can be adjusted by the
room temperature compensation factor setting.
Parameter Setting
•
P7 Room Compensation Factor (default value 2)
To increase or decrease the amount of room compensation, adjust the room compensation factor. A higher value will give
more priority to the room temperature error, and a lower value will mean the controller follows more closely the selected
heating curve.
Example
•
P7 = 2,
SR1 (room setpoint) = 20,
TR1 (room temperature) = 23
=> S1 (supply setpoint) reduced by 2 * (23 – 20) = 6K
Enable/disable
•
To disable room compensation completely, set P7=0. It is also recommended to change the setting 8:Su=1 on the room
unit. This will prevent the room temperature being transmitted to the System Controller and the room temperature will
not be displayed to the end-user on the Room Unit. Please refer to the System MMI Pack Installation and Operation
Manual for further details.
note
Room compensation should not be used when the room unit is located in a position unrepresentative of the
-
desired temperature in the living spaces, for example in a warm cupboard
The room setpoint and room temperature values are sent from the Room Unit to the System Controller by a
-
wireless signal. There can be a short delay in response between a room setpoint or temperature change and
the system controller changing the supply setpoint.
4.3.3. Heating Circuit Minimum/Maximum Temperature limits
function
•
The calculated supply water temperature setpoint is limited between the minimum supply temperature and the maximum
supply temperature settings. The maximum temperature limit can be used for example to prevent high temperatures
going to floor heating systems. The minimum temperature limit can be used when it is desired to keep a minimum level of
heating in the heating circuit.
Parameter Setting
•
P5 Minimum Supply Temperature (default 15°C)
P6 Maximum Supply Temperature (default 55°C)
Configuration Specific
•
CONF 1: P6 can be set up to a maximum value of 55°C
CONF 2: P6 can be set up to a maximum value of 65°C
CONF 3,4,5: P6 can be set up to a maximum value of 90°C
