Related Manuals for Baxi QAA73.110
Summary of Contents for Baxi QAA73.110
- Page 1 QAA73.110 Room Unit for Boiler Control with OpenTherm Interface Basic Documentation...
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Page 2: Table Of Contents
3.16 Language....................... 33 3.17 Indication of faults..................33 3.18 Boiler status code ..................34 Description of the heating engineer settings ........... 35 Service values ....................35 3/70 Siemens Building Technologies Basic Documentation QAA73.110 Room unit CE1P2284en HVAC Products Contents 19.06.2002... - Page 3 Effect of legionella function on the circulating pump........57 Service functions OEM ..................58 5.11 Info display.....................58 5.12 Frost warning ....................58 5.13 Operation .......................59 5.14 Action occupancy button................59 5.15 Software version ....................59 4/70 Siemens Building Technologies Basic Documentation QAA73.110 Room unit CE1P2284de HVAC Products Contents 19.06.2002...
- Page 4 Frost protection....................64 6.5.1 Frost protection for the building ..............64 6.5.2 Frost protection for the boiler and the d.h.w..........64 Dimensions ....................65 Technical data....................66 5/70 Siemens Building Technologies Basic Documentation QAA73.110 Room unit CE1P2284en HVAC Products Contents 19.06.2002...
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Page 5: Summary
Summary Brief description The QAA73.110 is a digital multi-functional room unit for one or 2 heating circuits and d.h.w. control. Boiler control delivers the outside temperature and other information to the QAA73.110 room unit via the OpenTherm communication interface. Based on the outside... -
Page 13: Communication With Boiler Control
In OpenTherm Plus mode, the QAA73.110 can read or write various standardized objects via the bus − In OpenTherm Lite mode, the QAA73.110 delivers only one signal to the boiler control for controlling the heat output. In the event of fault, boiler control signals Boiler Lock-Out Fault to the QAA73.110 •... -
Page 15: Parameter Settings For The Heating Engineer
Info button. display Note If no button is pressed for about 8 minutes, the room unit will automatically return to the Info level. 16/70 Siemens Building Technologies Basic Documentation QAA73.110 Room unit CE1P2284en HVAC Products Error! Style not defined. 19.06.2002... -
Page 18: Parameter Settings For The Oem
Info button. Note If no button is pressed for about 8 minutes, the room unit will automatically return to the Info level. 19/70 Siemens Building Technologies Basic Documentation QAA73.110 Room unit CE1P2284en HVAC Products Error! Style not defined. 19.06.2002... -
Page 20: Operational Faults
• Set the right time of day, the right date and the year on the room unit if the QAA73.110 is the clock master • Set the correct time of day and the date on the clock master (if present) -
Page 23: Time Of Day
• If, on line 96, the clock master was programmed for external, manual time settings via lines 1 to 3 are no longer possible 24/70 Siemens Building Technologies Basic Documentation QAA73.110 Room unit CE1P2284en HVAC Products Error! Style not defined. -
Page 29: Holidays
When using the ”Reduced” setting, the reduced room temperature setpoint (TRRw) is maintained during the holidays; when using the ”Frost” setting, the frost protection setpoint of the room temperature (TRF) is maintained. 30/70 Siemens Building Technologies Basic Documentation QAA73.110 Room unit CE1P2284en HVAC Products Error! Style not defined. 19.06.2002... -
Page 30: General
15 or 25 – – : – – Switch-off time period 3 16 or 26 – – : – – – – : Inactive 31/70 Siemens Building Technologies Basic Documentation QAA73.110 Room unit CE1P2284en HVAC Products Error! Style not defined. 19.06.2002... -
Page 31: Summer / Winter Changeover Temperature
SuWi -1 °C Changeover between summer and winter operation: TAged Attenuated outside temperature SuWi Summer / winter changeover temperature Temperature Time in days Heating 32/70 Siemens Building Technologies Basic Documentation QAA73.110 Room unit CE1P2284en HVAC Products Error! Style not defined. 19.06.2002... -
Page 32: Language
Alarm boiler temperature (too high) Burn lockout Fault burner OpenTherm Missing partner unit on LPB General BMU fault Interlock Boiler control interlocked AirPressSwi Fault air pressure switch 33/70 Siemens Building Technologies Basic Documentation QAA73.110 Room unit CE1P2284en HVAC Products Error! Style not defined. 19.06.2002... -
Page 33: Boiler Status Code
Unit is in parameter setting mode Floor Unit performes floor curing function Modem Standby by external BMU contact Service non-Siemens boiler control required 34/70 Siemens Building Technologies Basic Documentation QAA73.110 Room unit CE1P2284en HVAC Products Error! Style not defined. 19.06.2002... -
Page 34: Description Of The Heating Engineer Settings
The attenuated outside temperature affects directly only summer / winter changeover. The attenuated outside temperature acts indirectly on flow temperature control via the composite outside temperature. 35/70 Siemens Building Technologies Basic Documentation QAA73.110 Room unit CE1P2284en HVAC Products Error! Style not defined. 19.06.2002... -
Page 36: Actual Value 2 Of D.h.w. Temperature
The current solar collector temperature is displayed. Line 59 Press the line selection buttons to select line 59. Display Unit –40 ... +250 °C 37/70 Siemens Building Technologies Basic Documentation QAA73.110 Room unit CE1P2284en HVAC Products Error! Style not defined. 19.06.2002... -
Page 37: Actual Value Of Solar Storage Tank Temperature
• In OpenTherm Plus mode, the QAA73.110 can read or write various standardized objects via the bus • In OpenTherm Lite mode, the QAA73.110 delivers only one signal to the boiler control for controlling the heat output. In the event of fault, boiler control signals Boiler Lock-Out Fault to the QAA73.110... -
Page 41: Type Of Building Construction
The setting will activate the room influence on the required heating circuits. Entry: None Room influence inactive: The measured room temperature will not affect temperature control 42/70 Siemens Building Technologies Basic Documentation QAA73.110 Room unit CE1P2284en HVAC Products Error! Style not defined. 19.06.2002... -
Page 42: Switching Differential Of The Room Temperature
Switching differential will become greater • The pumps are switched on and off less often • The room temperature varies within a wider band 43/70 Siemens Building Technologies Basic Documentation QAA73.110 Room unit CE1P2284en HVAC Products Error! Style not defined. 19.06.2002... -
Page 45: Maximum Forward Shift For Optimum Start Control
The maximum forward shift for optimum stop control can be set between 0 and 360 minutes. Setting 0 means that optimum stop control is deactivated. 46/70 Siemens Building Technologies Basic Documentation QAA73.110 Room unit CE1P2284en HVAC Products Error! Style not defined. -
Page 47: Release Of D.h.w. Heating
• This function is possible only when d.h.w. heating is released by the d.h.w. heating program. 48/70 Siemens Building Technologies Basic Documentation QAA73.110 Room unit CE1P2284en HVAC Products Error! Style not defined. 19.06.2002... -
Page 48: Operating Mode Selector
If the parameter values shall not be changed, entry can be locked. Line 95 Press the line selection buttons to select line 95. Press the + / – buttons to activate or deactivate programming. 49/70 Siemens Building Technologies Basic Documentation QAA73.110 Room unit CE1P2284en HVAC Products Error! Style not defined. 19.06.2002... -
Page 50: Clock Time Master
4.27 Clock time master The clock time of the QAA73.110 and the clock time of the connected boiler control can Description be synchronized. In that case, one of the units will be defined as the clock time master, and the other unit adopts the time of day from the master. -
Page 51: Summer- / Wintertime Changeover
On the Sunday following the set date, the time of day of the room unit will switch to wintertime. For that purpose, the time of day is shifted backward by one hour. 52/70 Siemens Building Technologies Basic Documentation QAA73.110 Room unit CE1P2284en HVAC Products Error! Style not defined. 19.06.2002... -
Page 52: Description Of The Oem Settings
TRwk = 20 °C + 4 (20 °C – 22 °C) = 12 °C KORR Constant for room influence Actual value of the room temperature Room temperature setpoint TRwk Room temperature setpoint (readjusted) 53/70 Siemens Building Technologies Basic Documentation QAA73.110 Room unit CE1P2284en HVAC Products Error! Style not defined. 19.06.2002... -
Page 55: Limitation Of Rate Of Increase Of Flow Temperature Setpoint
Press the + / – buttons to adjust the maximum setpoint of the d.h.w. temperature. Setting range Unit Factory setting TBWw...80 °C TBWw Nominal d.h.w. temperature setpoint 56/70 Siemens Building Technologies Basic Documentation QAA73.110 Room unit CE1P2284en HVAC Products Error! Style not defined. 19.06.2002... -
Page 56: Setpoint Of The Legionella Function
If this function is deactivated, there is a risk that legionella viruses will return from the Important circulation piping to the d.h.w. storage tank right after the storage tank has been thermally desinfected. 57/70 Siemens Building Technologies Basic Documentation QAA73.110 Room unit CE1P2284en HVAC Products Error! Style not defined. 19.06.2002... -
Page 57: Service Functions Oem
If the outside temperature falls to the selected temperature level or drops below it, the Info display shows the actual outside temperature as a flashing value. 58/70 Siemens Building Technologies Basic Documentation QAA73.110 Room unit CE1P2284en HVAC Products Error! Style not defined. -
Page 58: Operation
The software version will automatically be displayed on this line. Example: 01.0 The first 2 digits give the software version The third digit gives the software revision (01.0) 59/70 Siemens Building Technologies Basic Documentation QAA73.110 Room unit CE1P2284en HVAC Products Error! Style not defined. 19.06.2002... -
Page 59: Functions
Weather compensation with room influence − Room compensation If no outside sensor is connected and the room sensor of the QAA73.110 fails, a fault Note status signal will be delivered. In that case, the room unit will change to emergency operation ”with no sensor”... -
Page 65: Technical Data
0..00.45 °C Room sensor Other features Backup of time switch min. 12 h Software class A to EN 60 730 Weight approx. 0.17 kg 66/70 Siemens Building Technologies Basic Documentation QAA73.110 Room unit CE1P2284en HVAC Products Error! Style not defined. 19.06.2002... - Page 66 ..............58 software version ............59 standard times............31 language ..............33 summer / winter changeover temperature ....32 legionella function ............. 48 summer- / wintertime..........52 dwelling time............57 67/70 Siemens Building Technologies Basic Documentation QAA73.110 Room unit CE1P2284en HVAC Products Index 06.06.2002...
- Page 67 ..... 60 technical data ............66 winter- / summertime ..........51 time of day, date and year.........24 winter operation ............32 time switch program for space heating......28 68/70 Siemens Building Technologies Basic Documentation QAA73.110 Room unit CE1P2284en HVAC Products Index 06.06.2002...
- Page 68 Chapter "Operating lock for programming " changed Chapter "Dwlling time of legionella funkcion" and "Effect of legionella funkcion on circulating pump" added Section "Operating lock" added Panel thickness changed 69/70 Siemens Building Technologies Basic Documentation QAA73.110 Room unit CE1P2284en HVAC Products 06.06.2002...
- Page 69 © Siemens Building Technologies AG HVAC Products Subject to alteration Gubelstrasse 22 CH -6301 Zug Tel. +41 41-724 24 24 Fax +41 41-724 35 22 www.landisstaefa.com 70/70 Siemens Building Technologies Basic Documentation QAA73.110 Room unit CE1P2284en Landis & Staefa Division 06.06.2002...