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Siemens Building Technologies
HVAC Products
If there is demand for DHW, the maximum output is always predetermined by «LmodVL».
With regard to heat demand, the following thus applies to the modulating range:
Demand for space
heating
Minimum output
LmodTL
Maximum output
PhzMaxAkt
The maximum heat output can be adjusted on the HMI, QAA73... or PC tool using the
controller stop function.
The setting range is 0...100 %, whereby the following assignment applies:
0 % → LmodTL
100 % → LmodVL
When setting the maximum heat output, the following must be observed:
Maximum output in DHW mode:
Maximum output in heating mode:
Maximum output in heating mode
and RU connected:
Basic Documentation LMU54... / LMU64...
3 Functions
Demand for DHW heating
LmodTL
LmodVL
LmodTL ≤ LmodVL ≤ 100 %
LmodTL ≤ PhzMax ≤ LmodVL
LmodTL ≤ PhzMaxAkt ≤ PhzMax
CC1P7494en
07.11.2002
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