Wireless room temperature controller with 24-hour time switch and lcd (13 pages)
Summary of Contents for Siemens QAA73
Page 1
SING IEMENS TEMPERATURE QAA73 REGULATOR PROGRAM BOILERS PARAMETERS Condensing gas boilers NOVADENS … Pag. 1/5 17.10.2008 Service instructions Lmu34 sw 2.09...
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Proceed as follows to access this parameters: 1) Simultaneously press keys 1-4 on QAA73 temperature regulator for about 3 seconds. The “Initialising BMU parameters” appears on the display (line 725). 2) Simultaneously press keys 1-2 on QAA73 temperature regulator for about 3 seconds. The “Initialising BMU SERVICE”...
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NOVADENS DEFAULT PARAMETERS LIST 1.240 QAA73 Description of parameters 20/24 kW 24/28 kW parameters Maximum flow setpoint temperature (°C) Summer / winter changeover temperature Heating curve slope heating circuit HC1 Room temperature adjustment (°C) Maximum speed (rpm) at maximum output in heating mode...
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Open Therm input setting (QAA73) 0= only with QAA73 1= with Low Voltage room thermostat RT or QAA73 2= factory default – only for LUNA IN models Setting value post purge time (s) Preset output BMU (controller stop function)
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NOVADENS DEFAULT PARAMETERS LIST 1.240 QAA73 Description of parameters 20/24 kW 24/28 kW parameters previous fault code counter ----- ----- internal previous fault code ----- Actual fault code counter The counter shows the number of times of same error happened...