Operation Manual
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Siemens Schweiz AG User Manual CE1U2354en
HVAC Products QAA75.. / QAA78… / AVS37.. 23. August 2007
Operating line
User level
Function
Default value
Min
Max
Unit
2080 F With solar integration
No ¦ Yes
Yes
Primary controller / system pump
2150 I Primary controller / system pump
Before buffer st tank ¦ After buffer st tank
After buffer st tank
-
Boiler
2203 F Release below outside temp − − − − − − / -50 50 °C
2205 F Economy mode
Off ¦ On DHW ¦ On
Off
2210 F Setpoint min 40 BZ 2211 OEM Setpoint manual
operation
°C
2212 F Setpoint max 80 Setpoint manual
operation
BZ 2213 OEM °C
2270 F Return setpoint min 8 8 95 °C
2330 F Output nominal 50 0 1000 kW
2331 F Output of basic stage 30 0 1000 kW
2340
6)
F Auto source seq 2x1 casc 500 − − − / 10 990 h
Cascade
3532 F Restart lock 300 0 1800 s
3533 F Switch-on delay 5 0 120 min
3540 F Auto source seq ch’over 500 − − − / 10 990 h
3541 F Auto source seq exclusion
None ¦ First ¦ Last ¦ First and last
None.
3544 F Leading source
Source 1 ¦ Source 2 ¦ … ¦ Source 16
Source 1
3560 F Return setpoint min 8 8 95 °C
Solar
3810 F Temperature differential ON 8 0 40 °C
3811 F Temp diff off 4 0 40 °C
3812 F Charg temp min DHW st tank − − − − − − / 8 95 °C
3815 F Charging temp min buffer − − − − − − / 8 95 °C
3818 F Charging temp min swi pool − − − − − − / 8 95 °C
3822 F Charging prio storage tank
None ¦ DHW storage tank ¦ Buffer
DHW storage tank
3825 F Charging time relative prio − − − − − − / 2 60 min
3826 F Waiting time relative prio 5 1 40 min
3827 F Waiting time parallel op − − − − − − / 0 40 min
3828 F Delay secondary pump 60 0 600 s
3831 F Min run time collector pump 20 5 120 s
3834 F Collector start funct gradient − − − − − − / 1 20 min/°C
3840 F Collector frost protection − − − − − − / -20 5 °C
3850 F Collector overtemp prot − − − − − − / 30 350 °C
3860 F Evaporation heat carrier − − − − − − / 60 350 °C
3870
6)
F Pump speed min 40 0 100 %
3871
6)
F Pump speed max 100 0 100 %
3880 F Antifreeze
None ¦ Ethylen glycol ¦ ¦ Propylene glycol ¦ Etyl and
propyl glycol
None
3881 F Antifreeze concentration 30 1 100 %
3884 F Pump capacity 200 10 1500 l/h










