The grey
side of the
ECL Card
Extended service
Service parameter(s) 52(II)-55
32n
52  Compensation of heat loss in circulation circuit
Circuit Setting range Factory setting
II ON / OFF ON
In primarily connected storage charging systems (system types 2, 
2a, 6 and 6a, section 10), you can choose to compensate for the 
heat loss of the circulation circuit.
ON:   No compensation (system types 2 and 6):
The circulation circuit (P3) is kept warm by 
the storage tank. 
The motorized control valve (M2) is closed.
OFF:    Compensation (system types 2a and 6a):  
The circulation circuit (P3) is kept warm by 
the heat exchanger. 
The motorized control valve (M2) is active 
to keep the charging temperature at S4 
constant.
55   Activation / deactivation of DHW circulation pump 
during DHW charging
Circuit Setting range Factory setting
II ON / OFF OFF
At DHW charging, the pump can be deactivated independently of 
the schedule.
ON:   The pump always operates according to 
schedule.
OFF:    The pump is deactivated at DHW charging, 
independently of the schedule.