Siemens RVD110,RVD130 Basic Documentation
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
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Siemens Building Technologies Basic Documentation 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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Contents
1 Summary ....................................................................................................... 11
1.1 Brief description and key features ................................................................. 11
1.2 Type summary............................................................................................... 11
1.3 Equipment combinations ............................................................................... 11
1.3.1 Suitable sensors ............................................................................................ 11
1.3.2 Suitable room units........................................................................................ 12
1.3.3 Suitable valve actuators ................................................................................12
1.3.4 Communication.............................................................................................. 12
1.3.5 Documentation ..............................................................................................12
2 Use ................................................................................................................ 13
2.1 Types of plant ................................................................................................ 13
2.2 Types of houses and buildings ...................................................................... 13
2.3 Types of heating systems.............................................................................. 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 modes ........................................................................................... 19
3.3.1 Heating circuit control .................................................................................... 19
3.3.2 D.h.w. heating................................................................................................ 19
3.3.3 Manual operation........................................................................................... 19
4 Acquisition of the measured values............................................................... 20
4.1 General.......................................................................................................... 20
4.2 Flow temperature (B1)................................................................................... 20
4.2.1 Types of sensors ........................................................................................... 20
4.2.2 Handling faults............................................................................................... 20
4.3 Outside temperature (B9) .............................................................................. 20
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4.3.1 Types of sensors............................................................................................20
4.3.2 Handling faults ...............................................................................................20
4.4 Room temperature (A6) .................................................................................21
4.4.1 Types of sensors............................................................................................21
4.4.2 Handling faults ...............................................................................................21
4.4.3 Room model...................................................................................................21
4.5 D.h.w. temperature (B3 or B71) .....................................................................21
4.5.1 Types of sensors............................................................................................21
4.5.2 Handling faults ...............................................................................................22
4.6 Primary return temperature (B7) ....................................................................22
4.6.1 Measurement .................................................................................................22
4.6.2 Handling faults ...............................................................................................22
4.7 Multipurpose temperature sensor (B71) ........................................................22
4.7.1 Use and 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
8.1 Operating lines...............................................................................................28
8.2 Displays .........................................................................................................28
9 Function block Standard values and fault indication......................................29
9.1 Operating lines...............................................................................................29
9.2 Reset end-user level ......................................................................................29
9.3 Display of faults..............................................................................................29
10 Function block Plant configuration .................................................................30
10.1 Operating lines...............................................................................................30
10.2 Plant configuration .........................................................................................30
10.3 Device functions.............................................................................................30
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11 Function block Space heating .......................................................................32
11.1 Operating lines ..............................................................................................32
11.2 Compensating variables ................................................................................ 32
11.2.1 Outside temperature...................................................................................... 32
11.2.2 Room temperature......................................................................................... 33
11.3 Heating curve ................................................................................................34
11.3.1 General, basic setting.................................................................................... 34
11.3.2 Self-adaptation ..............................................................................................35
11.3.3 Additional effects ........................................................................................... 35
11.4 Generation of setpoint ................................................................................... 35
11.4.1 Display of setpoint ......................................................................................... 35
11.4.2 Setpoint of weather-compensated control ..................................................... 35
11.4.3 Setpoint of room temperature-compensated control ..................................... 36
11.4.4 Setpoint of weather-compensated control with room temperature influence. 36
11.5 Control ........................................................................................................... 37
11.5.1 Weather-compensated control ......................................................................37
11.5.2 Room temperature-compensated control ...................................................... 37
11.5.3 Weather-compensated 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 of operation without outside sensor..................................................... 41
11.9 Frost protection for the house or building ...................................................... 41
11.9.1 Mode of operation with room temperature sensor......................................... 41
11.9.2 Mode of operation without room temperature sensor.................................... 41
11.10 Pump control .................................................................................................42
11.10.1 Pump overrun ................................................................................................ 42
11.10.2 Pump kick ...................................................................................................... 42
11.10.3 Protection against overtemperatures............................................................. 42
11.11 Maximum limitation of the room temperature ................................................ 42
12 Function block Actuator heat exchanger ....................................................... 43
12.1 Operating lines ..............................................................................................43
12.2 Mode of operation.......................................................................................... 43
12.3 Control process .............................................................................................43
12.4 Maximum limitation of the flow temperature .................................................. 43
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12.5 Minimum limitation of the flow temperature ...................................................43
13 Function block Actuator room heating ...........................................................44
13.1 Operating lines...............................................................................................44
13.2 Mode of operation ..........................................................................................44
13.3 Control process..............................................................................................44
13.4 Maximum limitation of the flow temperature ..................................................44
13.5 Minimum limitation of the flow temperature ...................................................44
13.6 Actuator pulse lock.........................................................................................45
14 Function block D.h.w. heating........................................................................46
14.1 Operating lines...............................................................................................46
14.2 Mode of operation and settings......................................................................46
14.3 General d.h.w. functions ................................................................................46
14.3.1 Setpoints ........................................................................................................46
14.3.2 Release of d.h.w. heating ..............................................................................46
14.3.3 Release of the circulating pump.....................................................................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.h.w. heating ..............................................................50
14.4.7 Switching differential of d.h.w. control............................................................50
14.5 Plant type no. 6b ............................................................................................50
14.5.1 Layout ............................................................................................................50
14.5.2 Mode of operation ..........................................................................................51
14.5.3 Settings ..........................................................................................................51
15 Function block Extra legionella functions.......................................................52
15.1 Operating lines...............................................................................................52
15.1.1 Legionella function .........................................................................................52
15.1.2 Setpoint..........................................................................................................52
15.1.3 Time ...............................................................................................................52
15.1.4 Dwelling time..................................................................................................52
15.1.5 Operation of circulating pump ........................................................................53
15.1.6 Maximum limitation of the return temperature ...............................................53
15.2 Mode of operation ..........................................................................................53
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16 Function block D.h.w. actuator 1 ................................................................... 55
16.1 Operating lines ..............................................................................................55
16.2 Mode of operation.......................................................................................... 55
16.3 Control process .............................................................................................55
16.4 Setpoint boost................................................................................................ 55
16.5 Maximum setpoint .........................................................................................55
17 Function block D.h.w. actuator 2 ................................................................... 56
17.1 Operating lines ..............................................................................................56
17.2 Mode of operation.......................................................................................... 56
17.3 Control process .............................................................................................56
17.4 Instantaneous d.h.w. heating......................................................................... 56
17.4.1 General.......................................................................................................... 56
17.4.2 Location of sensors .......................................................................................56
17.4.3 Flow switch .................................................................................................... 56
17.4.4 Offsetting the heat losses .............................................................................. 57
17.4.5 Cold water sensor B71 .................................................................................. 58
17.4.6 Adaptation to the time of year........................................................................ 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 lines ..............................................................................................61
18.2 Mode of operation.......................................................................................... 61
18.2.1 Sensor test ....................................................................................................61
18.2.2 Relay test....................................................................................................... 61
18.2.3 Display of active limitations ...........................................................................62
18.2.4 PPS identification ..........................................................................................62
18.2.5 Contact state H5............................................................................................ 62
18.2.6 Resetting the heating engineer level ............................................................. 62
18.2.7 Software version............................................................................................ 62
19 Function block Locking functions................................................................... 63
19.1 Operating lines ..............................................................................................63
19.2 Mode of operation.......................................................................................... 63
19.3 Maximum limitation of the primary return temperature .................................. 63
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19.3.1 General ..........................................................................................................63
19.3.2 Maximum limitation with heating operation ....................................................64
19.3.3 Maximum limitation with d.h.w. heating .........................................................64
19.4 Maximum limitation of the return temperature differential (DRT) ...................65
19.5 Integral action time of the limit functions........................................................65
19.6 Raising the reduced room temperature setpoint............................................66
19.7 Forced charging .............................................................................................66
19.8 Idle heat function............................................................................................66
19.8.1 General ..........................................................................................................66
19.8.2 Parameters ....................................................................................................67
19.8.3 Mode of operation ..........................................................................................67
19.8.4 Location of sensor..........................................................................................67
19.9 Locking on the hardware side ........................................................................67
20 Combination with PPS units...........................................................................68
20.1 General ..........................................................................................................68
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 periods .................................................................................71
20.3.6 Freely programmable input ............................................................................71
20.4 Room temperature sensor QAA10.................................................................71
21 Manual operation ...........................................................................................72
22 Handling.........................................................................................................73
22.1 Operation .......................................................................................................73
22.1.1 General ..........................................................................................................73
22.1.2 Analog operating elements ............................................................................74
22.1.3 Digital operating elements .............................................................................74
22.1.4 Controller in ”nonoperated state” ...................................................................75
22.1.5 Safety concept ...............................................................................................75
22.1.6 Setting levels and access rights.....................................................................75
22.2 Commissioning ..............................................................................................76
22.2.1 Installation instructions...................................................................................76
22.2.2 Operating lines...............................................................................................76
22.3 Mounting ........................................................................................................77
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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
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Glossary
In this Basic Documentation, the following specific terms are used:
Term Explanation
Heat converter
Heat exchanger that, on the primary side, is connected to the district heat network and that, on the
secondary side, delivers the hot water to a common flow. Several consumers, such as zone controllers, are connected to the common flow.
Heat exchanger
Heat exchanger that delivers the heat directly to
the consumers (e.g. space heating, d.h.w. heating, etc.).
Term Explanation
Charging pump Q3
(except plant type no. 6)
Pump that supplies tap water via the heat exchanger 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. and, therefore, does not get into
contact with the d.h.w.
Term Explanation
Coil type storage tank
2383S33
Instantaneous d.h.w. heating
(via heat exchanger)
2383S34
Stratification storage tank
2383S35
Storage tank Common term used for coil type and stratification
storage tanks.
Heat source,
heat generation
Pumps
D.h.w. heating
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1 Summary
1.1 Brief description and key features
• RVD110 / RVD130 are multifunctional district heating controllers for flow temperature
control of heating circuits and for the control of d.h.w. heating
• Their exclusive field of use are plants with district heat connection in smaller residen-
tial and nonresidential buildings
• The RVD110 has 3 plant types preprogrammed, the RVD130 has 8. When a certain
type of plant is selected, all functions and settings required for that particular plant
will be activated
• The RVD110 / RVD130 are designed as flow temperature controllers. The following
modes of control are possible:
− Weather-compensated only
− Weather- and room temperature compensated
− Room temperature-compensated only
• The difference between the RVD110 and RVD130 is the kind of d.h.w. heating:
− RVD110: 3 plant types, designed for straightforward d.h.w. heating with storage
tanks
− RVD130: 8 plant types, also suited for the more complex d.h.w. heating 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 conformity, overall dimensions
to DIN 43700 (96 × 144 mm)
1.2 Type summary
Unit Type reference
Controller for basic plants
RVD110
Controller for the more complex plants
RVD130
1.3 Equipment combinations
1.3.1 Suitable sensors
• For the flow temperatures:
Suitable are all types of temperature sensors that use a sensing element LG-Ni 1000
Ω at 0 °C. The following types are presently available:
− Strap-on temperature sensor QAD22
− Immersion temperature sensor QAE22...
• For the return temperatures:
The following types are presently available:
− Strap-on temperature sensor QAD22 (sensing element LG-Ni
1000 Ω at 0 °C)
− Immersion temperature sensor QAE22... (sensing element LG-Ni 1000 Ω at 0 °C)
− For the primary return temperature (B7), also commercially available sensors with
a sensing element Pt 500 Ω
• For the outside temperature:
− Outside sensor QAC22 (sensing element LG-Ni 1000 Ω at 0 °C)
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− Outside sensor QAC32 (sensing element NTC 575 Ω at 20 °C)
• For the room temperature:
Suited are PPS-compatible temperature sensors. The following type is presently
available:
− Digital room temperature sensor QAA10
• For the d.h.w. temperature and the secondary flow temperature of the heat ex-
changer:
− Strap-on temperature sensor QAD22
− Immersion temperature sensor QAE22...
1.3.2 Suitable 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 Documentation
Type of documentation Classification number
Data Sheet RVD110/RVD130 N2381
Operating Instructions RVD110/RVD130 B2381
Installation Instructions RVD110/RVD130 G2381
Data Sheet QAW50 N1635
Installation Instructions QAW70 G1637
Data Sheet QAW70 N1637
Data Sheet QAA10 N1725
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2 Use
2.1 Types of plant
The RVD110 / RVD130 are suited for all types of in-house plants that
• are connected to a district heat network
• use weather- or room temperature-compensated flow temperature control
• have the control of d.h.w. heating integrated
2.2 Types of houses and buildings
Basically, the RVD110 / RVD130 are suited for all types of houses and buildings that
use weather- or room temperature-compensated flow temperature control, but are designed specifically for use in
• single-family houses
• multifamily houses
• small to medium-size nonresidential buildings
2.3 Types of heating systems
The RVD110 / RVD130 are suited for all standard heating systems, such as
• radiators
• convectors
• underfloor heating systems
• ceiling heating systems
• radiant panels
2.4 Heating circuit functions
The RVD110 / RVD130 are used if one or several of the following heating circuit functions 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 heating periods with a maximum of 3 setback periods per day
and daily varying on times
• Frost protection for the plant and the house or building
• Minimum and maximum limitation of the heating circuit’s flow temperature
• Maximum limitation of the room temperature
• Maximum limitation of the primary return temperature
• Maximum limitation of the temperature differential
2.5 D.h.w. functions
The RVD110 / RVD130 are used if 1 or several of the following d.h.w. functions is / are
required:
• D.h.w. heating via heat exchanger in the storage tank
• Instantaneous d.h.w. heating via heat exchanger, with or without mixing valve in the
d.h.w. circuit
• Instantaneous d.h.w. heating via heat exchanger, with storage tank, with or without
mixing valve in the d.h.w. circuit
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• Common or separate heat exchangers for the heating circuit and d.h.w. heating
• Own 7-day switching program for the release of d.h.w. heating and the circulating
pump
• Idle heat function in case of instantaneous d.h.w. heating connected to a parallel
heat exchanger
• Legionella function
• Forced d.h.w. charging
• 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 functions is /
are required:
• Periodic pump run
• Pump overrun
• Display of parameters, actual values, operating state and fault status messages
• Remote operation via room unit
• Service functions
• Pulse lock for the actuators
Note
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3 Fundamentals
3.1 Key technical features
The controllers offer 2 key technical features:
The RVD110 has 3 plant types preprogrammed, the RVD130 has 8.
Section 3.2 ”Plant types” shows them in the form of plant diagrams
Plant type RVD110 RVD130 D.h.w. system
1
z z
−
2
z z
D.h.w. via storage tank
3
z z
D.h.w. via storage tank
4
z Instantaneous d.h.w. heating, d.h.w. via second
heat exchanger
5
z Instantaneous d.h.w. heating, d.h.w. via second
heat exchanger
6
z Instantaneous d.h.w. heating via storage tank,
connected to second heat exchanger
7
z Instantaneous d.h.w. heating via storage tank,
connected to second heat exchanger
8
z
Storage tank connected to heat exchanger
The settings are assigned to setting levels each of which accommodates a number of
function blocks:
Setting level Function 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 required settings can be made on operating lines. The
description of the individual functions is given below, per block and line.
3.2 Plant types
• The RVD110 has 3 plant types preprogrammed
• The RVD130 has 8 plant types preprogrammed
The required functions are ready assigned to each type of plant. When commissioning
the heating plant, the relevant plant type must be selected.
With the existing choice of controllers and plant types, practically all types of heating
plants with district heat connection and own d.h.w. heating facility can be controlled.
Note on the plant diagrams: All elements (sensors B7 and B71, circulating pump, and
flow switch) shown with broken lines are optional.
Plant types
Function blocks
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3.2.1 Plant type no. 1
Y1
B7
B71
B1
Q1
B9
A6
2381S01
N1
M
Heating circuit control without d.h.w. heating
3.2.2 Plant type no. 2
B3
Q7
Y1
B7
B71
B1
Q1
Q3
A6
B9
N1
2381S02
M
D.h.w. heating with storage tank, d.h.w. charging via charging pump.
Only with RVD130: Circulating 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 sensor
N1 Controller
Q1 Heating circuit pump
Q3 D.h.w. charging pump
Q7 D.h.w. circulating pump
Y1 2-port valve in the primary return
Y7 Diverting valve
Legend for plant types
no. 1...3:
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3.2.4 Plant type no. 4
Y1
Y5
H5
A6
B9
B7 B71
B1
Q1
B3
Q7
2381S0 4
N1
B71
M
M
Separate heat exchangers for heating circuit and d.h.w. heating, instantaneous d.h.w.
heating via heat exchanger.
Temperature sensor B71 can be used as follows:
• As a d.h.w. temperature sensor, or
• For maximum limitation of the temperature differential
Circulating pump and flow switch optional. Selectable idle heat function.
3.2.5 Plant type no. 5
B1
Y1
Y5
B7
Q1
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
2381S0 6
N1
M
M
Separate heat exchangers for heating circuit and d.h.w. heating; instantaneous d.h.w.
heating via storage tank connected to a separate heat exchanger; d.h.w. charging via
charging pump. 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.w. tem-
perature must be acquired with thermostat F1
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3.2.7 Plant type no. 6b
B1
Y1
Y7
B7
Q1
A6
B9
B71
Q7
2381S0 9
N1
M
Heat exchanger for the heating circuit, d.h.w. heating via the district heat primary circuit, control of the d.h.w. temperature via an electrothermal actuator. Circulating pump
optional. For information, refer to section 14.5 ”Plant type no. 6b”.
3.2.8 Plant type no. 7
Y1
B7
B1
Q1
A6
B9
B3
Q3
Y5
B71
2381S07
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.w. tem-
perature must be acquired with thermostat F1
3.2.9 Plant type no. 8
A6
B9
B71
Q1
Q7
Q3
Y1
B7
B1
Y5
B3
2381S08
N1
M
M
D.h.w. heating with storage tank connected to the heat exchanger; heating circuit with
mixing circuit in the heating zone flow; d.h.w. charging via charging pump.
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A6 Room unit
B1 Flow temperature sensor heating circuit (plant types no. 4...6)
or common flow (plant types no. 7+8)
B3 D.h.w. temperature sensor
B7 Primary return temperature sensor
B71 Secondary return temperature sensor (plant types no. 4 and 7)
or d.h.w. temperature sensor 2 (plant
type no. 5)
or flow temperature sensor heating circuit (plant type no. 8)
B9 Outside sensor
F1 D.h.w. thermostat
H5 Flow switch
N1 Controller
Q1 Heating circuit pump
Q3 D.h.w. charging pump
Q7 D.h.w. circulating pump controlled by the controller
Q Externally controlled circulating pump
Y1 2-port valve in the primary return
Y5 2-port valve in the d.h.w. circuit (plant types no. 4...6)
or mixing valve in the d.h.w. circuit (plant type no. 7)
or in the heating circuit (plant type no. 8)
Y7 Mixing valve in the d.h.w. circuit (plant type no. 5) or 2-port valve in the primary return (plant type no. 6b)
3.3 Operating modes
3.3.1 Heating circuit control
The RVD110 / 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
• Frost protection is ensured
Continuous operation
• Heating operation with no time program
• Heating to the room temperature adjusted with the setting knob
• Automatic ECO function inactive
• Frost protection is ensured
Standby
• Heating to the frost protection level
• Frost protection is ensured
3.3.2 D.h.w. heating
D.h.w. heating ON / OFF
• ON (button lit): D.h.w. is heated independent of the heating circuit’s op-
erating mode and control (no d.h.w. heating during holiday periods)
• OFF (button dark): No d.h.w. heating; circulating pump switches off, frost
protection is ensured
3.3.3 Manual operation
Manual operation
• No control
• Heating circuit pump and d.h.w. pump(s) are running
• 2-port vale in the primary circuit can be manually operated with the setting
buttons
For more detailed information, refer to chapter 21 “Manual operation”.
Legend for plant
types no. 4...8:
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4 Acquisition of the measured values
4.1 General
In the event of a faulty sensor, the RVD110 / RVD130 always attempt to maintain the
required comfort level, even at the expense of certain heat losses, which will not cause
any damage however.
In the case of severe faults that make it impossible for the RVD110 / RVD130 to ensure
control, a fault status message will be delivered. The controller displays this as Er (error).
Optional sensors (shown with broken lines) cannot be monitored for open-circuits.
4.2 Flow temperature (B1)
4.2.1 Types of sensors
Suitable are all types of Siemens temperature sensors that use a sensing element LG-
Ni 1000 Ω at 0 °C:
• Strap-on temperature sensor QAD22
• Immersion temperature sensor QAE22...
4.2.2 Handling faults
If there is a fault in the sensor’s measuring 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 flow temperature on the QAW70 room unit – if present – its
display will show --- if there is a short-circuit or open-circuit
4.3 Outside temperature (B9)
4.3.1 Types of sensors
The following types of sensors can be used:
• Outside sensor QAC22 (sensing element LG-Ni 1000 Ω at 0 °C), for connection to
terminal B9
• Outside sensor QAC32 (sensing element NTC 575 Ω at 20 °C), for connection to
terminal B9
The controller automatically identifies the type of sensor connected.
The range of use is –50...+50 °C.
4.3.2 Handling faults
If there is a short-circuit or open-circuit in the outside sensor’s measuring circuit, the
controller will respond as follows:
• Plants with room temperature sensor:
The controller switches to pure room temperature control.
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• Plants with no room temperature sensor:
The controller operates with a fixed outside temperature of 0 °C
A fault status message will be generated only when there is no actual room temperature value available.
This is the case when no room unit is used or when the room temperature measuring
circuit is faulty:
• The controller’s LCD displays Er
• When interrogating the outside temperature on the QAW70 room unit – if present –
its display will show --- if there is a short-circuit or open-circuit
4.4 Room temperature (A6)
4.4.1 Types of sensors
The room temperature is acquired via a PPS (point-to-point interface). Only a unit with
an appropriate output signal can be connected to it. The following types of units can be
used:
• Room unit QAW50
• Room unit QAW70
• Room temperature sensor QAA10
4.4.2 Handling faults
A short-circuit in the measuring circuit leads to a fault status message.
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 with no
room temperature measurement, it can perform certain room functions.
4.5 D.h.w. temperature (B3 or B71)
4.5.1 Types of sensors
The required types of sensors depend on the type of plant:
• Plant types no. 2...8 (sensor input B3):
Suitable are:
− All Siemens sensors using a sensing element LG-Ni 1000 Ω at 0 °C. Suited are
the strap-on temperature sensor QAD22 and the immersion temperature sensor
QAE22 with a range of use of 0...130 °C
− Commercially available sensors using a sensing element Pt 500 Ω with a range of
0...140 °C
The controller is able to automatically identify the type of sensor used.
• Storage tank with plant types no. 6 and 7 (sensor input B71):
− Suited are all Siemens sensors using a sensing element LG-Ni 1000 Ω at 0 °C
− The d.h.w. temperature in the storage tank can also be acquired with a control
thermostat
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4.5.2 Handling faults
If there is a fault in the sensor’s measuring circuit (short-circuit or open-circuit), a fault
status message will be generated.
The d.h.w. charging pump or the diverting valve will be deactivated and, in the case of
instantaneous d.h.w. heating systems, the respective valve shut. When interrogating the
d.h.w. temperature on the QAW70 room unit, its display will show --- if there is a shortcircuit or open-circuit.
4.6 Primary return temperature (B7)
4.6.1 Measurement
This measured value is required for minimum and maximum limitation of the primary
return temperature and for DRT limitation.
The following types of sensors can be used:
• Strap-on temperature sensor QAD22 or immersion temperature sensor QAE22...
(sensing element LG-Ni 1000 Ω at 0 °C)
• Commercially available immersion temperature sensors with a sensing element
Pt 500 Ω at 0 °C
The controller automatically identifies the type of sensor used.
The range of 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 Multipurpose temperature sensor (B71)
4.7.1 Use and measurement
Depending on the type of plant and the configuration, the multipurpose temperature
sensor is used as a
• secondary return temperature sensor
• d.h.w. temperature sensor
• heating circuit flow temperature sensor
The sensor acquires the temperature with a sensing element LG-Ni 1000
Available are the strap-on temperature sensor QAD22 and the immersion temperature
sensor QAE22... with a measuring range of 0...140 °C.
4.7.2 Handling faults
• When used as a secondary return temperature sensor:
If there is a fault in the sensor’s measuring circuit (short-circuit or open-circuit), a
fault status message will be generated when DRT limitation is activated. In that case,
the controller’s LCD will display Er
• When used as d.h.w. temperature sensor:
If there is a fault in the sensor’s measuring circuit (short-circuit or open-circuit), a
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fault status message will always be generated. 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
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5 Function block End-user space
heating
This function block contains settings and readouts that are intended for the end-user.
5.1 Operating lines
The buttons for selecting the operating lines and for adjusting the settings are described in section 22.1 ”Operation”.
Line Function, parameter Unit Factory setting Range
1 Current nominal room temperature setpoint Display function
2 Reduced room temperature setpoint °C 14 variable*
3 Frost protection / holiday mode setpoint °C 8 8...variable*
5 Heating curve slope 15 2.5...40
6 Weekday for entering the heating program Current weekday 1...7, 1-7
7 Heating period 1 start hh:min 06:00 --:-- / 00:00...24:00
8 Heating period 1 end hh:min 22:00 --:-- / 00:00...24:00
9 Heating period 2 start hh:min --:-- --:-- / 00:00...24:00
10 Heating period 2 end hh:min --:-- --:-- / 00:00...24:00
11 Heating period 3 start hh:min --:-- --:-- / 00:00...24:00
12 Heating period 3 end hh:min --:-- --:-- / 00:00...24:00
* The variable setting ranges are defined in the following sections
5.2 Settings and displays
• The nominal room temperature setpoint is set with the setpoint knob. Its scale is
calibrated in °C room temperature. The room temperature is maintained at that setpoint:
− In automatic mode during the heating periods
− 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 operating 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 operation Adjustment made with the setpoint knob
Quick setback Reduced setpoint (setting operating line 2)
Frost protection mode Setpoint for frost protection (setting operating line 3)
OFF by ECO • During heating periods: Adjustment made with
the setpoint knob (incl. readjustment made on the
room unit)
• Outside the heating periods: Reduced setpoint
• The reduced room temperature setpoint is to be set on operating line 2. The setting
range is generated by the nominal room temperature setpoint and the setpoint for
frost protection. This setpoint is maintained outside the heating periods
• The setpoint for frost protection is to be set on operating line 3. The setting range lies
between 8 °C (fixed value) and the adjusted reduced setpoint. This frost protection
thus acts as frost protection of the building.
The setting also represents the setpoint for the holiday mode. A holiday program can
only be entered on the QAW70 room unit, however
• The d.h.w. temperature setpoint is to be set on operating line 4. Its setting range
depends on the type of plant. For detailed information, refer to section 16.5
“Maximum setpoint”
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• The heating curve slope is to be set on operating line 5. The setting range is 2.5 to
40, but the effective slope is 10 times smaller.
For detailed information, refer to section 11.3 ”Heating curve”.
The setpoint of the nominal and the reduced room temperature as well as that for frost
protection are to be entered directly in °C room temperature. These setpoints apply
irrespective of whether or not the control uses a room temperature sensor. 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: 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 heating periods combined. When setting --:-for the start or the end, the heating period will be negated.
With the QAW70 room unit, the heating program can be changed from a remote location.
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6 Function block Clock settings
6.1 Operating lines
Line Function, parameter Unit Factory 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 operating lines 57 and 58).
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7 Function block End-user d.h.w. heat-
ing
7.1 Operating lines
Line Function, parameter Unit Factory setting Range
17 Weekday for entering the d.h.w. program Current weekday 1...7, 1-7
18 Release period 1 start hh:min 06:00 00:00...24:00
19 Release period 1 end hh:min 22:00 00:00...24:00
20 Release period 2 start hh:min --:-- 00:00...24:00
21 Release period 2 end hh:min --:-- 00:00...24:00
22 Release period 3 start hh:min --:-- 00:00...24:00
23 Release period 3 end hh:min --:-- 00:00...24:00
41 D.h.w. normal setpoint °C 55 variable
42 D.h.w reduced setpoint °C 40 8…normal setpoint
Setting --:-- means: Release period is inactive
7.2 D.h.w. program
The d.h.w. program of the RVD110 / RVD130 affords 3 release periods per day. Also,
every weekday can have different release periods. Each release period is 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 start or the end, the release period will be negated.
However, the release of d.h.w. heating can also take place according to other programs. The selection is made on operating line 101.
7.3 Setpoint adjustments
• The nominal d.h.w. setpoint is to be set on operating line 41. Its setting range de-
pends on the type of plant (for details, refer to section 16.5 “Maximum setpoint“.
• The reduced d.h.w. setpoint can be adjusted on operating line 42 between 8 °C and
the nominal setpoint. In connection with the d.h.w. program, it takes effect between
the release phases (refer to the above section 7.2).
Nom
Red
w
BW
2381D06
t
06:00 08:00 11:30 13:30 16:00
Nom Nominal setpoint
Red Reduced setpoint
t Time
w
BW
D.h.w. setpoint
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8 Function block Display actual value
sensors
8.1 Operating lines
Line Function, parameter Unit Factory setting Range
24 Room temperature (terminal A6) °C Display function
25 Outside temperature °C Display function
26 D.h.w. temperature °C Display function
27 Flow temperature heating circuit °C Display function
8.2 Displays
• Room temperature:
If a room temperature sensor or 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, connected to B9)
• D.h.w. temperature:
Displayed will be the temperature acquired by the d.h.w. temperature sensor. Depending on the plant configuration, this may be the sensor connected to B3 or B71
• If the storage tank temperature (plant types no. 6 and 7) is acquired with a control
thermostat, the display will always show --- .
• Flow temperature heating circuit:
Plant types no. 1...7: Displayed will be the temperature acquired by the sensor connected to B1.
Plant type no. 8: Displayed will be the temperature acquired by the sensor connected
to B71
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9 Function block Standard values and
fault indication
9.1 Operating lines
Line Function, parameter Unit Factory setting Range
49 Reset of operating lines 2...23 (end-user level) 0 0 / 1
50 Display of faults Display function
9.2 Reset end-user level
If operating line 49 is set to 1, all the current settings on the end-user level (operating
lines 2...23) will be cleared. In that case, the factory settings 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 by an error code:
Error code Cause
10 Fault outside sensor
30 Fault flow temperature sensor
40 Fault return temperature sensor on the primary side
42 Fault return temperature sensor on the secondary side
50 Fault d.h.w. temperature sensor
61 Fault room unit
62 Device with wrong PPS identification connected
86 Short-circuit on the room unit bus (PPS)
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