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System-wide functions
8.9
Forced operation of the pumps
When the pumps (Pu1, Pu2 and Pu3) have not been activated for 24 hours, forced operation of
the pumps is started between 12.00h and 12.01h. The forced operation of the storage tank
pump SLP is operated between 12.01h and 12.02h.
8.10 Flow temperature limitation
The boiler temperature is regulated to the limit set in Maximum flow temperature and an alarm
is displayed when the flow temperature at the boiler outlet of a modulating burner reaches the
limit Maximum flow temperature + Temperature rise .
The limitation is stopped again when the flow temperature falls below the limit set in Maximum
flow temperature .
During the active limitation, the boiler temperature blinks in InF1 and InF2 levels. Press
read the limit.
Function
Boiler sensor KF1, 2
Parameters
Maximum flow temperature KF1, 2
Temperature rise
Note! The controller cannot replace a safety temperature limiter.
The flow temperature is monitored by a thermostat when the function is deactivated. The input of
the flow sensor is defined as a binary input. The thermostat is connected to terminals 24 (RK1)
or 25 (RK2).
Function
Boiler sensor KF 1, 2
Note! The sensor inputs VF1 and VF2 cannot be used as thermostat inputs in system Anl 7.
56
EB 5474 EN
WE
Configuration
ON
Co1, Co2* -> Fb03 = ON
* Only in systems Anl 4 to 7
WE
Parameter level / Range of values
90 °C
PA1, PA2* / 20 to 160 °C
10 °C
PA5 / 0 to 30 °C
* Only in systems Anl 4 to 7
WE
Configuration
ON
Co1, Co2* -> Fb03 = OFF
StEiG
Thermostat closes
FALL
Thermostat opens
*Only in systems Anl 4 to 6
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