Hoval BIC 960 - Page 7

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DESCRIPTION OF THE PARAMETERS
Parameter 5 (2AF/32773): Proportional part
The Proportional part in heating operation is a boiler specic value (not plant specic) and must not be changed.
Parameter 6 (2AG/32774): Integral part
The Integral part in heating operation is a boiler specic value (not plant specic) and must not be changed.
Parameter 7 (2AH/32775): Differential part
The Differential part in heating operation is a boiler specic value (not plant specic) and must not be changed.
Parameter 8 (2AI/32776): Reference value when bus-interruption
If there is no bus connection between the automatic ring device and the heating controller, the automatic ring de-
vice adopts the reference value entered here.
Parameter 9 (2AJ/32777): Max. temperature rise at low ow temperature
The temperature gradient dened here can be exceeded, up to the “low” ow temperature set in Parameter 11 (see
functional drawing 2). If this is exceeded, is resulted in a reduction in the number of rotations to the minimum rotation
number.
Parameter 10 (2AK/32778): Max. temperature rise at high ow temperature
The temperature gradient dened here is deemed to be exceeded if it rises above the “high” ow temperature set in
Parameter 12 (see functional drawing 2). If this is exceeded, is resulted in a reduction in the number of rotations to
the minimum rotation number.
Parameter 11 (2AL/32779): “Low” ow temperature
The parameter, necessary for controlling the temperature increase at low ow temperatures, can be assigned a
value here. See functional drawing 2.
Parameter 12 (2AM/32780): “High” ow temperature
The parameter, necessary for controlling the temperature increase at high ow temperatures, can be assigned a
value here. See functional drawing 2.
Linearised area
0
2
4
6
8
10
12
14
16
50 60 70 80 90
Allowable gradient
(°C/sec)
Flow temperature (°C)
Functional drawing 2
Parameter 13 (2BC/32781): Lock-out ue gas temperature
If the ue gas temperature, entered here, is exceeded, the automatic ring device is locked-out (“E:25”).
Parameter 14 (2BD/32782): Blocking ue gas temperature
If the ue gas temperature, entered here, is exceeded, the automatic ring device is blocked (“B:07”).