Technical data
Procon
Display or 
QAA
Function / Description Range
Default Values
   
H
Output-related start on controller release in 
instantaneous DHW heating mode (LmodTL ≤ 
LmodRgStartDLH ≤ LmodVL)
…      
H
Set limit for the number of operating hours (interval) 
since last service visit
…  
hrs
H
Set limit for the number of startups (interval) since last 
service visit
…     
H
Set limit for the number of months (interval) since last 
service visit
…  
months
   
H Set limit of fan speed for service visit
…  
/min
H
Enduser can acknowledge a pending maintenance alarm 
via this parameter
…     
H Setting  ags of maintenance alarms … 
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H
Time for pump overrun in instantaneous DHW heater 
Comfort function with burner o  ( = pump o with 
burner o ;  = pump always on)
…  
min
   
H
Selected period of time for repetition of maintenance 
alarm after acknowledgement
…  
days
   
H Operating hours (interval) since last service visit
…  
hrs
H Startups (interval) since last service visit …     
H Months (interval) since last service visit
…  
months
H
Duration of pump shutdown when diverting valve 
changes from space heating to DHW heating
…  s    
H
Delay of pump shutdown when diverting valve changes 
from space heating to DHW heating
…  s    
H Limitation of temperature boost by dT control …      
H Setting value QAA: prepurge time …  s    
H Setting value QAA: postpurge time …  s    
H
Modulation air during full charging of strati cation 
storage tank (charging control)
…      
H
Set speed during full charging of strati cation storage 
tank (charging control)
…  
rpm
   
H
Charging temperature setpoint boost for recharging the 
strati cation storage tank when controlling to charging 
temperature
…  °C    
H Maximum fan speed on standstill
…  
rpm
   
H Modulation air when burner control is not operating …      
H
Ionization current maintenance alarm ( = did not occur, 
 = did occur)
…     
H
Duration of «Controller delay» after startup when cycling 
in instantaneous DHW outlet operation: output delivered 
now is that prior to shutdown
…  s    
H st Historical Fault – Number of Occurrences.
H st Historical Fault – Operating Phase.
H st Historical Fault – Operating Error Code
H nd Historical Fault – Number of Occurrences.
H nd Historical Fault – Operating Phase.
H nd Historical Fault – Operating Error Code
H rd Historical Fault – Number of Occurrences.
H rd Historical Fault – Operating Phase.
H rd Historical Fault – Operating Error Code
H th Historical Fault – Number of Occurrences.
H th Historical Fault – Operating Phase.










