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Siemens Building Technologies

Basic Documentation RVD110, RVD130

CE1P2381E

HVAC Products

15 Function block Extra legionella functions

27.05.2004

In the case of direct d.h.w. heating without circulating pump, the set value has no im-
pact (no dwelling time).

15.1.5 Operation of circulating pump

The circulating pump can be forced to run during the period of time the legionella func-
tion is active. This ensures that hot water also circulates through the plant’s hot water
distribution system. Entry (0 or 1) is made on operating line 128.
If the storage tank temperature exceeds the legionella setpoit minus 1 K, the circulating
pump will be forced to run.
If the storage tank temperature falls below the legionella setpoint by more than
SD + 2 K (switching differential plus 2 K), the circulating pump will no longer be acti-
vated.

15.1.6 Maximum limitation of the return temperature

For details, refer to section 19.3.3 “Maximum limitation with d.h.w. heating“.

15.2 Mode of operation

Conditions for activation of the legionella function:

•

The storage tank temperature is acquired with 1 or 2 sensors (legionella function
cannot be provided when using thermostats)

•

The legionella function has been parameterized (operating line 104)

•

D.h.w. heating is switched on (button

is lit)

•

The holiday function is not active

If the criteria “Set day” and “Time” are met, the legionella function will be released.
Release of the legionella function causes the d.h.w. temperature setpoint to be raised
to the level of the legionella setpoint and to forced charging. If d.h.w. heating is swit-
ched off or the holiday function is active, the legionella function will be released. On
completion of the overriding function, d.h.w. charging to the legionella setpoint will be
triggered since the legionella function continues to be released.
The behavior of the legionella function as a function of the d.h.w. temperature is as
follows:

T

BWw

T

BWw

- SD

BW

T

BWw

- SD

BW

- 2 K

ON

OFF

ON

OFF

T

BWx

t

23

81

D

0

7

1

2

8

5

6

3

ON

OFF

4

7

①

Circulating pump

⑦

Start dwelling time

②

Forced charging

⑧

Dwelling time has elapsed

③

Release of the legionella function

T

BWx

D.h.w.

temperature

④

Start conditions for the legionella function met

T

BWw

D.h.w. temperature setpoint

⑤

Start dwelling time

SD

BW

Switching differential of d.h.w charging

⑥

Reset dwelling time

t Time

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Содержание RVD110

Страница 1: ...Edition 4 0 Controller series D CE1P2381E 27 05 2004 Siemens Building Technologies HVAC Products RVD110 RVD130 District Heating and Domestic Hot Water Controllers Basic Documentation ...

Страница 2: ...ntation RVD110 RVD130 CE1P2381E HVAC Products 27 05 2004 Siemens Building Technologies AG HVAC Products Gubelstrasse 22 CH 6301 Zug Tel 41 41 724 24 24 Fax 41 41 724 35 22 www landisstaefa com 1999 Siemens Building Technologies AG Subject to change ...

Страница 3: ...ystems 13 2 4 Heating circuit functions 13 2 5 D h w functions 13 2 6 Auxiliary functions 14 3 Fundamentals 15 3 1 Key technical features 15 3 2 Plant types 15 3 2 1 Plant type no 1 16 3 2 2 Plant type no 2 16 3 2 3 Plant type no 3 16 3 2 4 Plant type no 4 17 3 2 5 Plant type no 5 17 3 2 6 Plant type no 6 17 3 2 7 Plant type no 6b 18 3 2 8 Plant type no 7 18 3 2 9 Plant type no 8 18 3 3 Operating ...

Страница 4: ...nd measurement 22 4 7 2 Handling faults 22 5 Function block End user space heating 24 5 1 Operating lines 24 5 2 Settings and displays 24 5 3 Heating program 25 6 Function block Clock settings 26 6 1 Operating lines 26 6 2 Entries 26 7 Function block End user d h w heating 27 7 1 Operating lines 27 7 2 D h w program 27 7 3 Setpoint adjustments 27 8 Function block Display actual value sensors 28 8 ...

Страница 5: ...pensated control with room temperature influence 38 11 6 Automatic ECO energy saver 38 11 6 1 Fundamentals 38 11 6 2 Compensating and auxiliary variables 39 11 6 3 Heating limit 39 11 6 4 Mode of operation of ECO function no 1 39 11 6 5 Mode of operation of ECO function no 2 40 11 7 Quick setback 40 11 8 Frost protection for the plant 40 11 8 1 Mode of operation with outside sensor 41 11 8 2 Mode ...

Страница 6: ...mp 47 14 3 4 Priority of d h w heating 47 14 3 5 Charging pump overrun 48 14 3 6 Frost protection for the d h w 48 14 3 7 Switching the d h w heating off 49 14 4 D h w heating with a storage tank 49 14 4 1 General 49 14 4 2 Regulating unit 49 14 4 3 Manual d h w heating 49 14 4 4 Legionella function 49 14 4 5 Protection against discharging of the d h w storage tank 50 14 4 6 Maximum duration of d ...

Страница 7: ...ar 58 17 4 7 Adjustable load limit 58 17 4 8 Child proofing 59 17 4 9 Plants with no mixing circuit 59 17 4 10 Plants with a mixing circuit 59 17 5 Instantaneous d h w heating with storage tanks 59 17 5 1 General 59 17 5 2 Measuring the d h w temperature 60 17 5 3 Feeding the circulating water into the heat exchanger 60 17 5 4 D h w heating 60 18 Function block Test and display 61 18 1 Operating l...

Страница 8: ...8 20 2 Combination with room unit QAW50 68 20 2 1 General 68 20 2 2 Overriding the operating mode 68 20 2 3 Readjustment of the room temperature 69 20 3 Combination with room unit QAW70 69 20 3 1 General 69 20 3 2 Overriding the operating mode 69 20 3 3 Readjustment of the room temperature 70 20 3 4 Actions of the individual QAW70 operating lines on the RVD110 RVD130 70 20 3 5 Entry of holiday per...

Страница 9: ...04 22 3 1 Mounting location 77 22 3 2 Mounting methods 77 22 3 3 Installation 77 23 Engineering 78 23 1 Connection terminals 78 23 2 Relays 78 23 3 Connection diagrams 79 23 3 1 Low voltage side 79 23 3 2 Mains voltage side 79 24 Mechanical design 80 24 1 Basic design 80 24 2 Dimensions 80 25 Technical data 81 ...

Страница 10: ... to the consumers e g space heating d h w heat ing etc Term Explanation Charging pump Q3 except plant type no 6 Pump that supplies tap water via the heat ex changer into the storage tank where it is made available as d h w Charging pump Q7 plant type no 7 Charging pump Q3 plant type no 6 Pump that pumps water as a heat carrier The water transfers its heat via a coil or storage tank to the d h w an...

Страница 11: ...systems that employ instantaneous d h w heating In terms of regulating units the RVD110 RVD130 is designed for the control of 2 and 3 port valves as well as diverting valves and pumps For the direct setting of the nominal room temperature setpoint a knob is provided All the other parameters are set digitally using the operating line principle Key design features Operating voltage AC 230 V CE confo...

Страница 12: ...table room units Room unit QAW50 Room unit QAW70 1 3 3 Suitable valve actuators All Siemens actuators with the following features can be used Electric or electrohydraulic actuators with a running time of 10 900 seconds 3 position control Operating voltage AC 24 V 230 V 1 3 4 Communication The RVD110 RVD130 are designed exclusively for standalone operation There is no bus connection facility 1 3 5 ...

Страница 13: ...he following heating circuit func tions is are required Weather or room temperature compensated flow temperature control Flow temperature control through a modulating seat or slipper valve Quick setback according to the selected 7 day program ECO function Demand dependent switching of the heating system based on the type of building construction and the outside temperature 7 day program for the he...

Страница 14: ... Frost protection for the d h w Selectable priority Absolute shifting or parallel Manual charging outside the time program Maximum limitation of the d h w return temperature Maximum limitation of the return temperature differential DRT limitation The RVD110 cannot perform all functions listed above 2 6 Auxiliary functions The RVD110 RVD130 are used if one or several of the following auxiliary func...

Страница 15: ... block End user space heating Clock setting End user d h w heating Display actual value sensors End user Standard values and fault indication Plant configuration Space heating Actuator heat exchanger Actuator heating circuit D h w heating D h w actuator 1 D h w actuator 2 Extra legionella functions Heating engineer Test and display Locking functions Locking functions For each function block the re...

Страница 16: ...ulating pump optional 3 2 3 Plant type no 3 Y1 B7 B71 Q1 B1 Y7 B9 N1 B3 Q7 2381S03 A6 M D h w heating via storage tank d h w charging via diverting valve Only with RVD130 Circulating pump optional A6 Room unit B1 Flow temperature sensor controlled variable B3 D h w temperature sensor B7 Primary return temperature sensor B71 Secondary return temperature sensor in the heating circuit B9 Outside sens...

Страница 17: ... A6 B9 2381S05 N1 Y7 B3 B71 M M M H5 Q8 Separate heat exchangers for heating circuit and d h w heating 2 stage d h w control first stage in the primary return second stage with a mixing valve in the secondary flow Circulating pump and flow switch optional Selectable idle heat function 3 2 6 Plant type no 6 B1 Y1 Y5 B7 Q1 A6 B9 B3 B71 F1 Q3 B71 Q7 2381S06 N1 M M Separate heat exchangers for heating...

Страница 18: ...S07 N1 B71 F1 M M Q8 2 heat exchangers connected in series 1 for the space heating circuit and 1 for d h w heating instantaneous d h w heating via storage tank connected to the second heat exchanger which uses a mixing circuit for d h w control Temperature sensor B71 can be used as follows As a d h w temperature sensor or For maximum limitation of the temperature differential in that case the d h ...

Страница 19: ...RVD130 offer the following operating modes Automatic mode Automatic heating operation changeover between nominal and reduced room temperature according to the time program Demand dependent switching of the heating system based on the pro gression of the outside temperature while giving consideration to the building s thermal inertia automatic ECO function Optional remote operation via room unit Fr...

Страница 20: ...ing circuit short circuit or open circuit the controller will respond as follows with all plant types The heating circuit pump will be activated The 2 port valve in the primary return will be shut If plant types no 4 6 use no space heating no fault status message will be generated In all other cases a fault status message will be delivered The controller s LCD displays Er When interrogating the fl...

Страница 21: ...ssage An open circuit in the measuring circuit does not lead to a fault status message since it is not possible to have a room unit connected 4 4 3 Room model The RVD110 RVD130 feature a room model which is integrated in the controller It simulates the room temperature based on the progression of the outside temperature and the type of building construction using a defined attenuation In plants wi...

Страница 22: ... use of all types of sensors is 0 140 C The Pt sensors can be used for fluid temperatures up to180 C 4 6 2 Handling faults If the primary return temperature sensor becomes faulty short circuit or open circuit a fault status message will be generated as soon as maximum limitation of the return temperature or DRT limitation has become active In that case the controller s LCD will display Er 4 7 Mult...

Страница 23: ...rated In that case the controller s LCD will display Er When used as a heating circuit flow temperature sensor plant type no 8 If there is a fault in the sensor s measuring circuit short circuit or open circuit a fault status message will always be generated The heating circuit s mixing valve will close and the circulating pump remains activated The controller s LCD will display Er ...

Страница 24: ...riods In continuous operation at all times On operating line 1 the LCD displays the current setpoint depending on the operat ing mode and the operating state Operating mode or operat ing state Setpoint displayed Heating to nominal setpoint Adjustment made with the setpoint knob incl read justment made on the room unit Heating to reduced setpoint Reduced setpoint setting operating line 2 Continuous...

Страница 25: ...ensor If there is no room temperature sensor the room model will be used 5 3 Heating program The heating program of the RVD110 RVD130 offers 3 heating periods per day Also every weekday can use different heating periods Each heating period is defined by a start and an end time When entering 1 7 on operating line 6 the heating program applies to all weekdays The entry can be simplified as follows I...

Страница 26: ...ory setting Range 13 Time of day hh min Undefined 00 00 23 59 14 Weekday d 1 1 7 15 Date dd MM 01 01 01 01 31 12 16 Year yyyy 2004 1995 2094 6 2 Entries The RVD110 RVD130 have a yearly clock with the time of day weekday and date The changeover from summer to wintertime and vice versa takes place automatically Should the respective regulations change the changeover dates can be adjusted refer to op...

Страница 27: ... defined by a start and an end time When entering 1 7 on operating line 17 the d h w program applies to all weekdays The entry can be simplified as follows If the times for the weekend differ from those for the other weekdays first enter the times for the entire week and then change weekdays 6 and 7 as required The settings are sorted and overlapping release periods combined When setting for the s...

Страница 28: ... room unit is connected to the PPS interface A6 the temperature acquired will be displayed Outside temperature The outside temperature displayed is delivered by the outside sensor analog con nected to B9 D h w temperature Displayed will be the temperature acquired by the d h w temperature sensor Depend ing on the plant configuration this may be the sensor connected to B3 or B71 If the storage tank...

Страница 29: ...tings will be used again Proceed as follows 1 Select operating line 49 2 Keep buttons and depressed until the display changes A flashing 0 on the display is the normal status 3 If 1 appears the controller has retrieved the factory settings 9 3 Display of faults Faults in the measuring circuits detected by the controller appear on the display as Er error as well as on operating line 50 accompanied ...

Страница 30: ... sensor In that case the return temperature differential cannot be measured Entry on operating line 53 1 With plant types no 4 and 5 it must be entered on operating line 54 whether a flow switch or circulating pump or both are present For detailed information refer to subsection 17 4 4 Offsetting the heat losses With plant types no 6 and 7 it is possible to select on operating line 55 where the re...

Страница 31: ...CE1P2381E HVAC Products 10 Function block Plant configuration 27 05 2004 possible changeover date is March 25 In that case the date to be entered on oper ating line 144 is 25 03 If no summer wintertime changeover is required the 2 dates are to be set so that they coincide ...

Страница 32: ...the outside temperature The building time constant is a measure of the type of building construction and an indication of how quickly the room temperature in the building would change if the outside temperature suddenly changed It can be selected Heavy building structures Setting 0 on operating line 62 Light building structures Setting 1 on operating line 62 The composite outside temperature TAM T...

Страница 33: ... is the only compensating variable With weather compensated control with room temperature influence the room tem perature is an additional compensating variable It is possible to adjust a gain factor for the influence of the room temperature operating line 70 This gain factor indicates to what extent a room temperature deviation will affect the room temperature setpoint thereby acting indirectly v...

Страница 34: ...her compensated flow temperature control with or without room temperature influence the assignment of the flow temperature setpoint to the outside temperature is made via the heating curve The heating curve slope is to be set on operating line 5 20 10 0 10 20 30 90 80 70 60 50 40 30 40 35 30 27 5 25 22 5 20 17 5 15 12 5 10 7 5 5 2 5 100 2381D05 TV TAM 110 20 S S Slope TAM Composite outside tempera...

Страница 35: ...d only be used if there is a suitable reference room In spite of adaptation precise adjustment of the heating curve and room influence op erating lines 5 and 70 is a must to ensure correct functioning 11 3 3 Additional effects If in the reference room there are heat gains which continuously affect the room temperature this effect can be included in the self adaptation For this purpose the room tem...

Страница 36: ...point In addition the heating curve with a fixed outside temperature of 0 C is taken into consideration 2381B02 E H TVw TRw 10 K 10 K I 50 K 50 K L TRx 1 2 1 s s 0 C s Generation of setpoint with room temperature compensated control Multiplier Operating line 5 setting of heating curve slope E Room authority Operating line 69 setting of heat gains H Heating curve Operating line 70 setting of room t...

Страница 37: ...r compensated control is the composite outside temperature The assignment of the flow temperature setpoint to the compensating variable is made via the set heating curve In that case the room temperature will not be taken into consideration Main application of this type of control are plants or buildings in which several rooms are occupied at the same time none of the rooms is suited as a referenc...

Страница 38: ... temperature setpoint is continuously shifted via the heating curve as a function of the composite outside temperature In addition any deviation of the room tempera ture produces an instant parallel displacement of the heating curve The correlation between the amount of deviation and the extent of displacement is defined by the room temperature influence which is dependent on the set authority the...

Страница 39: ...rage capacity The following variables are taken into account The building time constant The actual outside temperature TA The attenuated outside temperature TAD Compared to the actual outside tempera ture the attenuated outside temperature is considerably damped It ensures summer operation without heating because it makes certain the heating will not be switched on if for a few days the outside te...

Страница 40: ...n uses no setpoint but a fixed value Also the heat ing limit has a minimum limitation which cannot be lower than 2 C The heating limit is determined as follows 5 TECO fixed value of 5 C plus ECO temperature 11 7 Quick setback When changing from the nominal temperature to a lower temperature level reduced temperature or standby the heating will be switched off and it will remain off until the room ...

Страница 41: ...e frost protection setpoint If the room temperature drops below that level the controller will maintain a room temperature equivalent to the frost protection setpoint plus the switching differen tial of 1 K provided both the controller and the heat source are ready to operate mains voltage present and a room temperature sensor or room unit is connected The frost protection setpoint is to be set on...

Страница 42: ...ture with the room tempera ture setpoint The following limit values are used The minimum on time is 3 minutes If the calculation produces a shorter on time it is extended to 3 minutes The maximum on time is 8 minutes If the calculation produces a longer on time the pump will run continuously Pump cycling is used as a protection against overtemperatures but is not a safety func tion This protection...

Страница 43: ...s from the setpoint the 2 port valve in the primary return offsets the deviation in a stepwise fashion The controller drives the valve s elec tric or electrohydraulic actuator whose ideal running time is 2 to 3 minutes The actuator s running time P band and integral action time must be entered on oper ating lines 81 through 83 depending on the type of plant 12 4 Maximum limitation of the flow temp...

Страница 44: ... sensor B1 With plant type no 8 With sensor B71 13 3 Control process If the actual flow temperature deviates from the heating circuit s setpoint the 2 port valve in the primary return offsets the deviation in a stepwise fashion The controller drives the valve s electric or electrohydraulic actuator whose ideal running time is 2 to 3 minutes The actuator s running time P band and integral action ti...

Страница 45: ...RVD130 If an actuator has received closing pulses for a total period of time that represents 5 times its running time additional closing pulses from the controller will be suppressed For safety reasons the controller delivers a closing pulse of 1 minute at 10 minute intervals An opening pulse negates the pulse lock This function is applied to all actuators in the plant and is intended to reduce th...

Страница 46: ...ng line 101 In the case of d h w heating with storage tanks plant types no 2 3 and 8 there are 4 choices available see table below In the case of instantaneous d h w heating systems plant types no 4 and 5 d h w heating is always released This means that d h w is always available and there are no settings on the controller required In the case of instantaneous d h w heating systems with storage tan...

Страница 47: ...ng pump is deactivated with every type of plant If the controller is in manual operation the output is switched on and the circulating pump runs 14 3 4 Priority of d h w heating To ensure quick d h w heating the other heat consumers can be restricted during d h w heating priority The controller affords absolute shifting and no priority parallel operation The choice is to be entered on operating li...

Страница 48: ... position for the period of time entered in that respect the diverting valve is treated like the charging pump Plant type no 6 Each time d h w is drawn charging pump Q3 overruns for the pe riod of time entered Plant type no 7 Each time d h w heating is terminated both charging pump Q3 primary circuit and charging pump Q7 secondary circuit overrun for the period of time entered With this type of pl...

Страница 49: ... by pressing the operating mode button for d h w heating for 3 seconds D h w heating is also switched on if d h w heating is not released the d h w temperature lies within the switching differential also refer to forced charging the d h w operating mode is on standby holiday period d h w heating OFF Operating mode D h w heating ON is switched on by activating manual d h w heat ing As an acknowledg...

Страница 50: ...mperature B1 is lower than the storage tank tempera ture B71 14 4 6 Maximum duration of d h w heating The duration of d h w heating can be limited to make certain the heating circuit will receive sufficient amounts of heat also when d h w heating cannot be completed The input is made on operating line 109 If no maximum duration of d h w heating is re quired the function can be deactivated setting ...

Страница 51: ...d h w temperature is acquired by sensor B71 This means that maximum limitation of the differential temperature in the heating circuit is not possible No thermostat may be used Sensor input B3 will not be used The respective fault status message must be sup pressed by connecting a fixed resistor recommendation 1000 Ω to terminals B3 M This does not affect control output Q3 Y7 and the frost protecti...

Страница 52: ... for d h w heating 15 1 2 Setpoint The legionella setpoint can be adjusted in the range from 60 95 C operating line105 In the case of storage tanks with 2 sensors the d h w temperature must reach the setpoint at both sensors 15 1 3 Time The legionella function is started at the set time If no time has been set operating line 126 the legionella function will be started with the first d h w release ...

Страница 53: ...tank temperature is acquired with 1 or 2 sensors legionella function cannot be provided when using thermostats The legionella function has been parameterized operating line 104 D h w heating is switched on button is lit The holiday function is not active If the criteria Set day and Time are met the legionella function will be released Release of the legionella function causes the d h w temperature...

Страница 54: ...ella functions 27 05 2004 If a maximum d h w charging time has been set it also acts here If the legionella set point is not reached the legionella function will be interrupted and resumed on comple tion of the maximum charging time The legionella setpoint will not be affected by the maximum of the d h w temperature setpoint ...

Страница 55: ...nes 111 through 114 depending on the type of plant Different times can be entered for opening and closing to allow for actuators with asymmetric running times 16 4 Setpoint boost On operating line 116 the setpoint boost with d h w heating can be entered Depend ing on the type of plant its action is as follows With plant types no 2 3 and 8 To be entered is the boost of the common flow tem perature ...

Страница 56: ...ating 17 4 1 General Direct d h w heating is covered by plant types no 4 and 5 In these plants separate heat exchangers are used in parallel mode for space heating and d h w heating Combi heat exchangers also belong to this category The d h w is heated with or without mixing in the secondary circuit 17 4 2 Location of sensors Special attention must be paid to the correct location of the sensors in...

Страница 57: ...culating pump since it is immersed into the heat exchanger Mode of operation 2381S10 2381S11 Plant without flow switch Plant with flow switch Setting on operating line 54 Flow switch present Circulating pump present Heat losses will be com pensated for 0 No Either way Yes completely 100 1 Yes No No 2 Yes Yes Yes partly 80 3 Yes Yes Yes completely 100 Efforts are made to maintain the d h w setpoint...

Страница 58: ... the current maximum stroke is 50 If the controller drives the actuator beyond the 50 position the stroke model continually adjusts the current maximum stroke towards 100 At midnight the current maximum stroke will be reduced by 1 The minimum after longer plant off times is 20 17 4 7 Adjustable load limit The flow switch delivers fast information independent of the signal supplied by the d h w flo...

Страница 59: ... is controlled by adjustment of the two port valve in the primary circuit This kind of control necessitates a fast actuator preferably with a running time of 10 20 seconds To ensure that actuators with different opening and closing times provide the required control performance these 2 parameters can be entered separately operating lines 111 and 112 17 4 10 Plants with a mixing circuit This kind o...

Страница 60: ...ial compensation of the heat losses 80 2 Yes Into the heat exchanger Full compensation of heat losses 100 the d h w flow temperature setpoint is con stantly aimed for A flow temperature drop of 20 is accepted On completion of a d h w heating cycle the circulation circuit will first be charged for about 5 minutes before the demand for d h w heating becomes invalid The behavior is the same as that w...

Страница 61: ...minal B3 3 Room unit sensor terminal A6 4 Primary return temperature sensor terminal B7 5 Multipurpose sensor terminal B71 Faults in the measuring circuits are indicated as follows open circuit or no sensor connected ooo short circuit 18 2 2 Relay test All relays can be manually energized on operating line 142 allowing their states to be checked Code Response or current status 0 Normal operation n...

Страница 62: ...operating line 145 Address displayed Unit 1 82 Room unit QAW50 1 83 Room unit QAW70 1 90 Room temperature sensor QAA10 No unit connected 18 2 5 Contact state H5 On operating line 146 the state of input H5 can be interrogated Code displayed Current status 0 Contact open 1 Contact closed With the RVD110 input H5 is not used which means that the display is inactive 18 2 6 Resetting the heating engine...

Страница 63: ...hardware side For details refer to subsection 22 1 6 Setting levels and access rights 19 3 Maximum limitation of the primary return temperature 19 3 1 General The primary return temperature can be limited to a maximum value in order to prevent too hot water from being fed back to the district heating utility minimize the pumping power of the utility comply with the regulations of the district heat...

Страница 64: ...e selected characteristic When the outside temperature falls the return temperature will first be limited to the constant value If the outside temperature continues to fall it will reach the set starting point for shift ing From that point the limit value will be raised as the outside temperature falls The slope of that part of the characteristic is adjustable The setting range reaches from 0 to 4...

Страница 65: ...ial 100 90 80 70 60 50 40 30 20 10 0 VP DRTon DRTOFF VS t 2522D11 DRTON With active limitation of the return temperature differential DRTOFF Without limitation of the return temperature differential T Time VP Volumetric flow on the primary side VS Volume saved The return temperature differential is dependent on the type of heat exchanger used and in normal situations is 2 5 C The maximum limitatio...

Страница 66: ... 2381D04 5 ER ER Authority or slope TAM Composite outside temperature TRw Reduced room temperature setpoint 19 7 Forced charging In the case of forced charging the storage tank will also be charged when the d h w has not yet dropped below the setpoint by the amount of the switching differential This takes place Every day at the beginning of the first release phase when d h w heating is released ac...

Страница 67: ...ensor B7 Opening time has elapsed With sensor B7 Return temperature switch off temperature or after two minutes The function will be aborted when the flow sensor delivers a signal there is demand for heat 19 8 4 Location of sensor The primary return temperature sensor is to be located in the common return of space heating and d h w This means that only 1 sensor is required for maximum limitation o...

Страница 68: ...y of holiday periods A short circuit at the PPS leads to a fault status message an open circuit represents a permitted state no unit present 20 2 Combination with room unit QAW50 20 2 1 General Room unit QAW50 with room temperature sensor knob for room temperature readjustment and economy button The QAW50 can act on the RVD110 RVD130 as follows Overriding the operating mode Readjustment of the roo...

Страница 69: ...ature re adjustment and economy button also termed presence button The QAW70 can act on the RVD110 RVD130 as follows Overriding the operating mode Overriding the room temperature setpoint Overriding the d h w temperature setpoint Readjustment of the room temperature Entry of weekday and time of day Change of controller s heating program Display of actual values and room temperature as acquired by ...

Страница 70: ...the controller 3 D h w temperature set point Overrides the normal setpoint adjustment made on the controller The setting range operating line 116 remains valid 4 Weekday For entering the heating program 5 Start heating period 1 6 End heating period 1 7 Start heating period 2 8 End heating period 2 9 Start heating period 3 10 End heating period 3 Changes the time switch settings made on the control...

Страница 71: ...de During the holiday period the operating mode buttons for space heating and d h w heating flash at a frequency of 2 Hz provided the function has been acti vated beforehand 20 3 6 Freely programmable input For a number of remote operating and other auxiliary functions the QAW70 room unit features a freely programmable input The following connection choices exist QAW44 analog room temperature sens...

Страница 72: ...tting buttons 2 port valve Y1 in the primary return can be driven into any position The heating circuit pump and d h w pump s will run The controller s display shows the flow temperature sensor B1 With plant types no 4 through 6 the display changes to the d h w flow temperature sensor B3 B71 if the heating circuit is switched off operating line 52 but the setting buttons still act on 2 port valve ...

Страница 73: ...mperature setpoint 2381Z03 ECO 1 2 5 6 7 8 1 3 7 1 2 3 4 5 7 6 Display of the RVD130 1 Indication of positioning pulses to the regulating units Y1 Y5 and Y7 Example Bar beneath number 7 lit actuator Y7 receives OPEN pulses 2 Indication of function of pumps Q1 Q3 and Q7 Example Bar beneath number 3 lit pump Q3 runs 3 Indication of the current temperature level nominal or reduced temperature Example...

Страница 74: ...ressing a button It is indicated by an LED At the same time the LED s in the operating mode buttons extinguish Manual operation is quit by pressing the same button again or by pressing any of the operating mode but tons 22 1 3 Digital operating elements The entry or readjustment of all setting parameters activation of optional functions and reading of actual values and states is made according to ...

Страница 75: ...operated state the time of day and all actual values can be viewed by pres sing the setting buttons and The codes of the actual values are identical with those on operating line 161 Any active limitations are indicated by or depending on the priority They can be retrieved on operating line 169 When switching on again after a power failure the display always shows the time of day Then the display s...

Страница 76: ...the Installation Instructions should not be thrown away but kept in a safe place along with the plant documentation 22 2 2 Operating lines When commissioning the plant the most important job is entry of the required type of plant When entering the plant type all relevant functions and settings will be acti vated Additional configurations required Space heating Present or not present With plant typ...

Страница 77: ...e at the top all those for mains voltage actuators and pumps at the bottom 22 3 2 Mounting methods The RVD110 RVD130 are designed for 3 different mounting methods Wall mounting The base is secured to a flat wall with the help of 3 fixing screws DIN rail mounting The base is fitted to the rail Flush panel mounting The base is placed in a panel cutout measuring 138 92 mm the front panel may have a m...

Страница 78: ...de sensor B1 Flow temperature sensor M Ground sensors analog B3 D h w temperature sensor B7 Return temperature sensor B71 Multipurpose sensor H5 Binary input d h w thermostat flow switch The base of the RVD110 contains 4 auxiliary terminals M L Live conductor AC 230 V N Neutral conductor AC 230 V F1 Input for Y1 and Y2 Y1 Valve OPEN Y2 Valve CLOSED F3 Input for Q1 and Q3 Y7 Q1 Pump ON Q3 Y7 Pump O...

Страница 79: ...ors and 3 pumps or 2 pumps and 1 diverting valve A6 Room unit QAW50 or QAW70 N2 Controller RVD130 B1 Flow temperature sensor Q1 Heating circuit pump B3 D h w temperature sensor Q3 D h w charging pump B7 Primary return temperature sensor Q7 D h w circulating pump Y1 Actuator of 2 port valve in the primary return B71 Secondary return temperature sensor or second d h w temperature sensor or second fl...

Страница 80: ... mm They can be mounted in 3 different ways Wall mounting DIN rail mounting Flash panel mounting the front panel may have a maximum thickness of 3 mm The base is always mounted and wired first To make certain the controller is always mounted the correct way both the base and the housing of the controller insert carry the marking TOP There are 5 knockout holes for cable entries at the bottom of the...

Страница 81: ...d switching voltage AC 24 230 V Rated current Outputs Y1 Y2 Q1 AC 0 02 2 2 A Outputs Y5 Y6 Q3 Y7 Q7 Y8 AC 0 02 1 1 A Switch on current max 10 A max 1 s Max rating as mixing valve relay 15 VA Perm cable lengths To the sensors Copper cable 0 6 mm dia 20 m Copper cable 1 0 mm2 80 m Copper cable 1 5 mm2 120 m To the room unit Copper cable 0 6 mm dia 37 m Copper cable 0 8 mm dia 75 m Degrees of protect...

Страница 82: ...ucts 25 Technical data 27 05 2004 Particular requirements for temperature sensing controls EN 60730 2 9 Special requirements for energy controllers EN 60730 2 11 Weight Net weight 0 77 kg For setting ranges refer to the descriptions of the function blocks and the individual operating lines ...

Страница 83: ...imitation of the primary return temperature 64 contact status H5 62 continuous operation 19 cover 80 current setpoint 24 D d h w button 74 d h w heating ON OFF 19 d h w heating with storage tank 49 d h w program 27 d h w setpoint 46 d h w setpoint adjustments 27 development of outside temperatures 33 deviation 33 37 differential temperature sensor 30 digital operating elements 74 dimensions 80 DIN...

Страница 84: ...w heating 50 maximum limitation of the flow temperature 43 44 maximum limitation of the primary return temperature 63 64 maximum limitation of the return temperature differential 65 maximum limitation room temperature 42 minimum limitation of the flow temperature 43 minimum limitation of the flow temperature 44 mixing circuit d h w 59 mode of operation secondary mixing valve 56 mounting 77 N nomin...

Страница 85: ...ion 24 setpoint for holiday mode 24 setpoint knob 74 setpoint of room temperature compensated control 36 setpoint of weather compensated control with room temperature influence 36 setting buttons 75 setting knob on QAW70 70 setting levels 15 76 setting levels and access rights 75 setting ranges 81 short circuit display 61 slope 34 slope maximum limitation of the primary return temperature 64 softw...

Страница 86: ...Siemens Building Technologies Basic Documentation RVD110 RVD130 CE1P2381E HVAC Products Index 27 05 2004 ...

Страница 87: ...inal room temperature setpoint 1 24 D D h w reduced setpoint 42 27 D h w normal setpoint 41 27 D h w priority 106 47 D h w switching differential 103 46 D h w temperature 26 28 Daily forced d h w heating at the start of release period 1 162 63 Date 15 26 Derivative action time d h w control 115 55 Display of active limitations 143 61 Display of faults 50 29 Dwelling time at legionella setpoint 127...

Страница 88: ...erential 156 63 Max setpoint of return temperature with d h w heating 154 63 Max setpoint of the return temperature during d h w heating at the legionella setpoint 157 63 Max time d h w heating 109 47 Maximum setpoint of the return temperature with d h w heating at the legionella setpoint 157 52 Min limitation of flow temperature 86 43 Min limitation of flow temperature 96 44 O Outside temperature...

Страница 89: ... 28 Room temperature influence gain factor 70 32 S Sensor test 141 61 Setpoint boost for control of the common flow 94 44 Setpoint boost with d h w heating 116 55 Setpoint legionella function 105 52 Setpoint of legionella function 105 53 Software version 150 61 Space heating present 52 30 Summer wintertime changeover 58 30 T Time of day 13 26 Time of legionella function 126 52 U Use of universal s...

Страница 90: ...Siemens Building Technologies Basic Documentation RVD110 RVD130 CE1P2381E HVAC Products Alphabetical list of operating lines 27 05 2004 ...

Страница 91: ...1 1 Operating lines 67 and 68 removed 11 3 2 Second paragraph changed third paragraph added adaptation sensitivity removed 11 10 2 Last sentence added 13 6 Title of section changed 14 1 Operating line 105 setting range added 14 3 1 Subsection added 14 3 2 Release is independent of the plant type After the table Release defined note on valid setpoint 14 3 4 Table Mode of operation applies to plant ...

Страница 92: ...92 94 Siemens Building Technologies Basic Documentation RVD110 RVD130 CE1P2381E HVAC Products 27 05 2004 ...

Страница 93: ...93 94 Siemens Building Technologies Basic Documentation RVD110 RVD130 CE1P2381E HVAC Products 27 05 2004 ...

Страница 94: ...entation RVD110 RVD130 CE1P2381E HVAC Products 27 05 2004 Siemens Building Technologies AG HVAC Products Gubelstrasse 22 CH 6301 Zug Tel 41 41 724 24 24 Fax 41 41 724 35 22 www landisstaefa com 1999 Siemens Building Technologies AG Subject to change ...

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