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Siemens

Room Unit for Boiler Control

CE1U2283en

Building Technologies

Index

2015-09-16

Index

dimensions of cutout ........................................... 32
dwelling time legionella function .......................... 28

engineering ........................................................... 6

handling ................................................................ 6

legionella function ............................................... 28

dwelling time ................................................... 28

maximum d.h.w. setpoint (TBWmax) ................... 28
maximum limitation of setpoint rise...................... 30

product liability ..................................................... 6
protection against legionella viruses ....................28

setpoint of legionella function ...............................28
summer operation ...............................................22

technical data ......................................................33

weather compensation ........................................30
weather compensation with room influence..........30
winter operation ...................................................22

Summary of Contents for QAA73.210

Page 1: ...s Room Unit for Boiler Control With OpenTherm Interface User manual QAA73 210 Edition 1 1 Device series A CE1U2283en 2015 09 16 Building Technologies ...

Page 2: ...Building Technologies 2015 09 16 Siemens Switzerland Ltd Building Technologies Division International Headquarters Gubelstrasse 22 6301 Zug Switzerland Tel 41 41 724 24 24 www siemens com buildingtechnologies Siemens Switzerland Ltd 2010 Subject to change ...

Page 3: ...15 4 2 1 User levels 15 4 2 2 Overview of settings 16 4 3 Programming Siemens BMU parameters 18 5 Description of room unit settings 19 5 1 Time and day TIME 19 5 2 Time switch program TSPHC TSPCC TSPHW 19 5 2 1 Day selection 19 5 2 2 Switching times 20 5 3 Heating circuit HEAT 20 5 4 Cooling circuit COOL 27 5 5 Domestic hot water DHW 27 5 6 Configuration CONF 29 6 Functions 30 6 1 Types of compens...

Page 4: ...4 36 Siemens Room Unit for Boiler Control CE1U2283en Building Technologies Table of contents 2015 09 16 ...

Page 5: ...mode Every setting or change is displayed and thus acknowledged Heating circuit program with up to 4 heating periods per day can be selected on an individual basis Cooling circuit program with up to 4 heating periods per day can be selected on an individual basis D h w program with up to 4 heating periods per week can be selected on an individual basis Holiday function Special mode for setting the...

Page 6: ... 96 EC WEEE and should not be disposed of as unsorted muni cipal waste The relevant national legal rules must be adhered to Regarding disposal use the systems setup for collecting electronic waste Observe all local and applicable laws 2 Mounting and Installation 2 1 Engineering In the main living room or reference room The place of installation should be chosen so that the sensor can capture the r...

Page 7: ...ot be exposed to dripping water Permissible ambient temperature 0 50 C Wall mounting Step 1 Open the unit at the bottom and remove the base from the housing front Step 2 Connect the bus cable to the screw teminals Step 3 Fit the base to the wall with the help of screws Step 4 Engage the housing front at the top of the base and close the unit to the bottom Mounting conditions ...

Page 8: ...ting and Installation 2015 09 16 2 3 Electrical installation The local regulations for electrical installations must be complied with 1 2 COA COB OpenTherm terminal A interchangeable OpenTherm terminal B interchangeable 23 mA max Regulations for installation Connection diagram 1 2 ...

Page 9: ...n order Check the wiring Boiler controller Does boiler control really have to operate Press boiler control s lock out reset button Check wiring and fuse of boiler control Check the communication link to boiler control The room temperature does not agree with the required temperature level Does the room temperature setpoint agree with the required temperature level Is the required operating mode in...

Page 10: ...tpoint buttons Heating Adjustment of room temperature setpoint Setpoint buttons D H W Adjustment of D H W temperature setpoint Info button Change of info display Occupancy button Changeover of operating level LCD Display of data and operating mode DHW mode ON Space heating mode ON Boiler operation for DHW heat demand Boiler operation for heating circuit heat demand Maintenance message Automatic op...

Page 11: ...temperature at the selected operating level Characteristics of continuous operation Heating mode with no time program Protective functions active Automatic summer winter changeover and 24 hour heating limit ECO functions inactive in the case of continuous operation with Comfort setpoint When using Protection mode the heating system is off but it remains protected against frost frost protection tem...

Page 12: ... h w must be ensured by boiler control Adjusting the room temperature setpoint tAMB Push the buttons to increase or decrease the Comfort setpoint The Reduced setpoint can be adjusted in programming level Adjusting the DHW temperature setpoint HW SP Push the buttons to increase or decrease the Nominal setpoint The Reduced setpoint can be adjusted in programming level Presence button If you do not u...

Page 13: ...urn temperature RETUR C Calculated flow temperature setpoint CH SP C During boiler operation it is possible to see the actual boiler modulation level on 4 different levels The room unit indicates faults that may have occurred in the unit itself or in the system If a fault is indicated ERROR and the error code followed by the letter E are visualized in the display These faults cannot be reset They ...

Page 14: ...the letter E are visualized in the display For resetting the BMU press the OK button If the reset was successful RESET followed by OK are visualized in the display Is activated deactivated on the BMU Boiler temperature is visualized on the QAA Is activated deactivated on the BMU Modulation level can be set by up down buttons Boiler lockout Chimney sweep Controller stop 2 seconds 2 seconds ...

Page 15: ...you come back to operating page selection 6 By pressing the ESC button you leave the programming level If no button is pressed for about 1 minutes the room unit will automatically leave programming level 4 2 1 User levels The user levels only allow authorized user groups to make settings To reach the required user level proceed as follows Buttons Explanation 1 Press the Info button for at least 3 ...

Page 16: ... MO 1 7 ON 1 E 1st phase on 10 00 00 00 23 59 hh mm OF 1 E 1st phase off 18 00 00 00 23 59 hh mm ON 2 E 2st phase on 24 00 00 00 23 59 hh mm OF 2 E 2st phase off 24 00 00 00 23 59 hh mm ON 3 E 3st phase on 24 00 00 00 23 59 hh mm OF 3 E 3st phase off 24 00 00 00 23 59 hh mm ON 4 E 4st phase on 24 00 00 00 23 59 hh mm OF 4 E 4st phase off 24 00 00 00 23 59 hh mm TSPHW ON 1 E 1st phase on 06 00 00 0...

Page 17: ...low temperature setpoint heating circuit 2 80 20 80 C COOL 1 COMFR E Comfort setpoint 22 5 30 C ECONM E Reduced setpoint 24 5 30 C DHW COMFR F Nominal setpoint 55 35 70 C ECONM F Reduced setpoint 35 35 70 C SHOWR O Shower function setpoint 40 35 70 C HW MX F DHW setpoint max 65 35 70 C HW MN F DHW setpoint min 35 35 70 C L FCT F Legionella function 0 OFF 1 ON 0 0 2 L TIME F Legionella function dwe...

Page 18: ...ting page selection 6 By pressing the ESC button you leave the programming level If no button is pressed for about 1 minutes the room unit will automatically leave programming level The user levels only allow authorized user groups to make settings To reach the required user level proceed as follows Buttons Explanation 1 Press the line selection buttons for at least 3 seconds This will take you di...

Page 19: ...tching times of the time switch program apply This setting must be made before the switching times are entered For every day on which other switching times shall apply the preselection of the individual day with subsequent entry of the switching times must be repeated Entry of the switching times on lines ON 1 through OFF 4 is identical for every day from Monday through Sunday Example of a time sw...

Page 20: ...uttons for the comfort temperature which are located on the controller front for direct access by the user When a button is pressed the current room temperature setpoint is displayed and when pressed further readjusted 0 2 4 6 8 10 12 14 16 18 20 22 24 35 C 2283Z07 6 5 Room temperature setpoint setting ranges 5 Reduced room temperature setpoint ECONM 6 Frost protection setpoint of the room tempera...

Page 21: ...90 100 C 2283Z21 TVw 71 72 TVw Current flow temperature setpoint 71 minimum limitation of flow temperature CH MN 72 maximum limitation of flow temperature CH MX These settings provide maximum or minimum limitation of the flow temperature Maximum limitation is NOT to be regarded as a safety function as required with underfloor heating systems for example The room unit generates the flow temperature...

Page 22: ...side temperature drops for short periods of time Additional savings function By changing the setting the respective periods of time will be shortened or extended The change will only affect the heating circuit Increase Winter operation will start earlier Summer operation will start later Decrease Winter operation will start later Summer operation will start earlier To determine changeover the sett...

Page 23: ...TRw THG heating off 19 C Switching differential fixed 1 C Changeover temperature heating on 18 C By changing the value entered the respective heating periods will be shortened or extended Increase Heating mode will start earlier changeover to ECO later Decrease Heating mode will start later changeover to ECO earlier The function is not active in operating mode Continuously Comfort temperature To g...

Page 24: ...f building construction When the outside temperature varies the room temperature changes at different rates depending on the building s thermal storage capacity The above setting ensures that the generation of the composite outside temperature will be matched to the type of building construction Also refer to Composite outside temperature 5 10 Heavy building structures The room temperature will re...

Page 25: ...of time depending on the outside temperature and the building time constant Duration of quick setback when Comfort setpoint minus Reduced setpoint 2 C e g Comfort setpoint 20 C and Reduced setpoint 18 C Outside temperature composite Building time constant 0 2 5 10 15 20 50 15 C 0 3 1 7 7 15 3 23 30 6 76 6 10 C 0 1 3 3 3 6 7 10 13 4 33 5 5 C 0 0 9 2 1 4 3 6 4 8 6 21 5 0 C 0 0 6 1 6 3 2 4 7 6 3 15 8...

Page 26: ... Switch on point OFF Switch off point t Time P Pump Pump ON TRx TRw Pump OFF TRx TRw SDR C ON Legend TRx Actual value of the room temperature TRw Room temperature setpoint SDR Switching differential of room temperature P Pump ON OFF w Setpoint Switch on point Switch off point The heating circuit pumps are controlled not directly by the QAA73 110 but by boiler control For this reason this functiona...

Page 27: ... during normal d h w operation will be changed 0 10 20 30 40 50 60 70 80 90 100 120 130 140 C 2284Z17 90 7 130 7 Nominal d h w temperature setpoint COMFR 90 Reduced setpoint of the d h w temperature ECONM 130 Maximum nominal setpoint of d h w temperature HW MX Reduction of the d h w temperatures outside main occupancy times The time switch integrated in the room unit automatically switches between...

Page 28: ...mum of 2 5 hours The d h w is heated up to the adjusted legionella setpoint If on the starting day of the legionella function d h w is not heated or if the function is aborted it will be repeated the next day when d h w is heated for the first time This function is possible only when d h w heating is released by the d h w heating program The setpoint of the legionella function operating line 92 is...

Page 29: ...9 16 5 6 Configuration CONF The setting activates or deactivates time switch program 0 DHW OFF 1 DHW always ON 2 DHW time switch program active The setting activates or deactivates the cooling function All parameters can be reset to their default values TSP DHW enable HW PR Cooling enable COOL Default paramters RESET ...

Page 30: ...on it must be ensured that the heating curve is correctly set because the room unit gets no feedback from the space whether the amount of heat supplied meets the demand of the users The room influence AMBON must be set to OFF and in addition an outside sensor must be connected 6 1 2 Weather compensation with room influence Compared to pure weather compensation this type of compensation offers enha...

Page 31: ...actual value The room influence AMBON must be activated for the required heating circuits and in addition no outside sensor may be connected The flow temperature and thus the room temperature are controlled as a function of the actual room temperature and its current development For example if the room temperature rises slightly the flow temperature will immediately be reduced even if there is dev...

Page 32: ...s in mm 85 125 5 24 86 31 2283M01 81 5 130 For special applications it is possible to integrate the device in the boiler panel The controller s mounting dimensions are 81 5 x 125 5 mm The mechanical mounting facility allows the controller to be fitted in front panels having a thickness of 1 to 2 mm Room unit Panel cutout ...

Page 33: ...for proper installation Degree of contamination as per EN 60730 Normal contamination Environmental conditions as per EN 60721 3 1 Storage class 1K3 20 70 C as per EN 60721 3 2 Transportation class 2K3 25 70 C as per EN 60721 3 3 Operation class 3K5 0 50 C without condensation Standards and directives Product standard Automatic electronic controls for household and similar use EN 60730 1 Electromag...

Page 34: ...ineering 6 H handling 6 L legionella function 28 dwelling time 28 M maximum d h w setpoint TBWmax 28 maximum limitation of setpoint rise 30 P product liability 6 protection against legionella viruses 28 S setpoint of legionella function 28 summer operation 22 T technical data 33 W weather compensation 30 weather compensation with room influence 30 winter operation 22 ...

Page 35: ...35 36 Siemens Room Unit for Boiler Control CE1U2283en Building Technologies 2015 09 16 ...

Page 36: ...Building Technologies 2015 09 16 Siemens Switzerland Ltd Building Technologies Division International Headquarters Gubelstrasse 22 6301 Zug Switzerland Tel 41 41 724 24 24 www siemens com buildingtechnologies Siemens Switzerland Ltd 2010 Subject to change ...

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