Edition 1.3
Controller series B
CE1P2374E
19.04.2001
Siemens Building Technologies
Landis & Staefa Division
RVA63.280, RVA53.280
Boiler and Heating Circuit Controllers
Basic Documentation
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Siemens Building Technologies Basic Dokumentation RVA63.280, RVA53.280 CE1P2374E
Landis &Staefa Division 19.04.2001
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Siemens Building Technologies Basic Dokumentation RVA63.280, RVA53.280 CE1P2374E
Landis & Staefa Division Summary 19.04.2001
Contents
1 Summary.........................................................................................................8
1.1 Brief description...............................................................................................8
1.2 Features ..........................................................................................................8
1.3 Range of products.........................................................................................10
1.4 Field of use....................................................................................................11
1.5 Product liability ..............................................................................................11
2 Handling ........................................................................................................12
2.1 Installation .....................................................................................................12
2.1.1 Regulations for installation ............................................................................12
2.1.2 Mounting location ..........................................................................................12
2.1.3 Mounting procedure.......................................................................................12
2.1.4 Required cut-out............................................................................................14
2.1.5 Orientation.....................................................................................................14
2.2 Electrical installation......................................................................................15
2.2.1 Regulations for installation ............................................................................15
2.2.2 wiring.............................................................................................................15
2.3 Commissioning..............................................................................................17
2.3.1 Functional checks..........................................................................................17
2.4 Parameter settings for the end-user..............................................................21
2.4.1 Overview of end-user parameters.................................................................22
2.5 Parameter settings for the heating engineer .................................................24
2.5.1 Overview of heating engineer parameters ....................................................25
2.6 Parameter settings for the OEM....................................................................29
2.6.1 Overview of OEM parameters.......................................................................30
2.7 Operation.......................................................................................................32
2.7.1 Operating elements.......................................................................................32
2.8 Operational faults ..........................................................................................34
1 Description of end-user settings....................................................................36
User interface................................................................................................................36
1.1 Operating modes of heating circuit................................................................36
1.2 Operating mode of d.h.w. heating .................................................................38
1.3 Nominal room temperature setpoint..............................................................39
1.3.1 Temperature adjustment via room unit..........................................................40
1.4 Heating circuit selection button .....................................................................41
1.5 Chimney sweep.............................................................................................42
1.6 Manual operation...........................................................................................43
Setting the clock............................................................................................................44
1.7 Time of day....................................................................................................44
1.8 Weekday .......................................................................................................44
1.9 Date (day, month)..........................................................................................45
1.10 Year...............................................................................................................45
Time switch programs 1 and 2 ......................................................................................46
1.11 Pre-selection of weekday: for time switch programs 1 and 2 ........................46
1.12 Switching times of time switch programs 1 and 2.........................................48
Time switch program 3 (d.h.w.) .....................................................................................49
1.13 Preselection of weekday for time switch program 3 (d.h.w.).........................49
1.14 Switching times of time switch program 3 (d.h.w.) ........................................50
D.h.w. values.................................................................................................................51
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1.15 Nominal setpoint of d.h.w. temperature (TBWw)...........................................51
Heating circuits ..............................................................................................................52
1.16 Reduced setpoint of room temperature (TRRw)............................................52
1.17 Frost protection setpoint of room temperature (TRF)....................................53
1.18 Summer / winter changeover temperature HC1 and HC2 (THG)..................54
1.19 Slope of heating curve (S) .............................................................................56
Display of actual values.................................................................................................58
1.20 Actual value of room temperature (TRx)........................................................58
1.21 Actual value of outside temperature (TAx) ....................................................58
Display of burner data....................................................................................................59
1.22 Burner hours run stage 1 (tBR1)....................................................................59
1.22.1 Counting the hours run ..................................................................................59
1.22.2 Average burner running time .........................................................................59
1.23 Burner hours run stage 2 (tBR2)....................................................................60
1.23.1 Counting the hours run ..................................................................................60
1.24 Number of burner starts stage 1....................................................................60
1.25 Number of burner starts stage 2....................................................................61
Maintenance ..................................................................................................................62
1.26 Standard times...............................................................................................62
Holidays 63
1.27 Holiday period................................................................................................63
1.28 Beginning and end of holiday period .............................................................63
1.29 Indication of BMU error code.........................................................................64
1.30 Indication of faults..........................................................................................65
2 Description of heating engineer settings........................................................67
Service values................................................................................................................67
2.1 Output test.....................................................................................................67
2.2 Input test........................................................................................................68
2.3 Display of plant type ......................................................................................69
Actual values..................................................................................................................70
2.4 Actual value of flow temperature ...................................................................70
2.5 Actual value of boiler temperature.................................................................70
2.6 Actual value of common flow temperature.....................................................70
2.7 Actual value 1 of d.h.w. temperature (TBWx)................................................71
2.8 Actual value 2 of d.h.w. temperature .............................................................71
2.9 Display of maximum flue gas temperature (TGxmax) ...................................71
2.10 Attenuated outside temperature (TAxged).....................................................72
2.11 Composite outside temperature (Taxgem) ....................................................72
2.12 Outside temperature source ..........................................................................73
Setpoints 74
2.13 Display of boiler temperature setpoint ...........................................................74
2.14 Display of common flow temperature setpoint...............................................74
2.15 Display of d.h.w temperature setpoint ...........................................................75
2.16 Display of nominal room temperature setpoint ..............................................76
2.17 Display of room temperature setpoint (TRw).................................................77
2.18 Display of flow temperature setpoint (TVw)...................................................78
2.19 Floor curing data............................................................................................79
Heat generating equipment............................................................................................80
2.20 Type of heat source.......................................................................................80
2.20.1 No heat generation or BMU...........................................................................80
2.20.2 Multi-stage burners........................................................................................80
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2.21 Minimum limitation of boiler temperature (TKmin).........................................81
2.22 Extra heating for the bathroom......................................................................82
2.22.1 Extra heating for the bathroom......................................................................82
Heating circuit................................................................................................................83
2.23 Parallel displacement of heating curve..........................................................83
2.24 Room influence .............................................................................................84
2.25 Switching differential of room temperature (SDR).........................................85
2.26 Operating mode of room unit.........................................................................86
2.27 Room unit values...........................................................................................87
2.27.1 Examples of room unit assignments .............................................................88
2.28 Minimum limitation of flow temperature setpoint (TVmin)..............................89
2.29 Maximum limitation of flow temperature setpoint (TVmax)............................90
2.30 Maximum forward shift of optimum start control............................................91
2.30.1 Optimum start control....................................................................................91
2.30.2 Without room influence..................................................................................92
2.30.3 With room influence.......................................................................................92
2.31 Maximum forward shift of optimum stop control............................................93
2.31.1 Optimum stop control ....................................................................................93
2.32 Type of building construction.........................................................................94
2.33 Adaption of heating curve..............................................................................95
2.33.1 Adaption ........................................................................................................95
2.34 Locking signal gain........................................................................................97
2.35 Floor curing ...................................................................................................98
2.35.1 Temperature profile.......................................................................................98
2.35.2 Activating the function ................................................................................... 99
2.35.3 Function.........................................................................................................99
2.35.4 Display...........................................................................................................99
2.35.5 Aborting the function .....................................................................................99
D.h.w. 100
2.36 Reduced setpoint of d.h.w. temperature (TBWR) .......................................100
2.37 D.h.w. heating program...............................................................................101
2.37.1 24-hour operation setting 0 ........................................................................101
2.37.2 Operation according to the time switch programs with forward shift (d.h.w.)
Setting 1 ......................................................................................................102
2.37.3 Operation according to the local time switch program 3 (d.h.w.) Setting 2 .102
2.38 Assignment of d.h.w. heating ......................................................................103
2.39 D.h.w. charging ...........................................................................................104
2.39.1 Once per day with a forward shift of 2.5 hours Setting 0.............................104
2.39.2 Several times per day with a forward shift of 1 hour Setting 1 ....................104
2.40 Type of d.h.w. demand................................................................................105
2.41 Boost of flow temperature setpoint for d.h.w. heating (UEBW)...................107
2.42 D.h.w. priority...............................................................................................108
2.42.1 Frost protection for the plant .......................................................................108
2.42.2 Shifting priority.............................................................................................109
2.42.3 Temperature-time integral...........................................................................110
2.43 Controlling element for d.h.w.......................................................................111
LPB / system ...............................................................................................................112
2.44 LPB device address ....................................................................................112
2.45 LPB segment address.................................................................................113
2.46 LPB power supply .......................................................................................114
2.47 Display of LPB power supply.......................................................................115
2.48 Range of action of central changeover........................................................116
2.49 Automatic summer / winter changeover......................................................117
2.50 Central stand-by switch...............................................................................118
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Landis & Staefa Division Summary 19.04.2001
2.51 Clock mode..................................................................................................119
2.52 Winter- / summertime changeover...............................................................120
2.53 Summer- / wintertime changeover...............................................................120
2.54 Display of PPS communication....................................................................121
Multi-functional inputs..................................................................................................122
2.55 Input H1.......................................................................................................122
2.55.1 Changeover of operating mode ...................................................................123
2.55.2 Minimum flow temperature setpoint TVHw..................................................124
2.55.3 Heat generation lock....................................................................................124
2.55.4 Heat demand DC 0...10 V............................................................................125
2.55.5 Changeover of operating mode ...................................................................125
2.56 Minimum flow temperature setpoint contact H (TVHw) ...............................126
2.57 Maximum value of heat demand signal DC 0...10 V (H1)............................127
2.58 Operating action contact H1 and H2............................................................127
2.59 Input B31/H2................................................................................................128
2.59.1 D.h.w. sensor 2............................................................................................128
2.59.2 Minimum flow temperature setpoint (TVHw)................................................129
2.59.3 Heat generation lock....................................................................................129
2.59.4 Changeover of operating mode ...................................................................129
3 Description of OEM settings ........................................................................130
Heat generating equipment..........................................................................................130
3.1 Minimum limitation of boiler temperature (TKmin
OEM
)..................................130
3.2 Maximum limitation of boiler temperature (TKmax) .....................................130
3.3 Switching differential of the boiler temperature............................................131
3.3.1 Single-stage burner .....................................................................................132
3.3.2 2-stage burner .............................................................................................132
3.4 Minimum limitation of burner running time...................................................133
3.5 Release integral of burner stage 2...............................................................134
3.5.1 Temperature-time integral ...........................................................................134
3.6 Reset integral of burner stage 2 ..................................................................135
3.6.1 Temperature-time integral ...........................................................................135
3.7 Pump overrun time ......................................................................................136
3.8 Operating mode of the boiler .......................................................................137
3.8.1 Extended burner running time .....................................................................137
3.9 Protective boiler start-up..............................................................................138
3.9.1 Impact on 2-position loads...........................................................................138
3.9.2 Impact on modulating loads.........................................................................139
3.9.3 Temperature-time integral ...........................................................................140
3.10 Control of boiler pump .................................................................................141
Heating circuit..............................................................................................................142
3.11 Boost of flow temperature setpoint mixing valve (UEM)..............................142
3.12 Gain factor of room influence (KORR).........................................................143
3.13 Constant for quick setback and optimum start control (KON)......................144
3.13.1 Quick setback without room influence .........................................................144
3.13.2 Optimum start control without influence.......................................................144
3.14 Boost of room temperature setpoint (DTRSA).............................................145
3.14.1 Boost heating...............................................................................................145
3.15 Frost protection for the plant........................................................................146
3.15.1 Frost protection for the plant........................................................................146
3.16 Control mode of actuator .............................................................................147
3.17 Switching differential of actuator..................................................................148
3.17.1 Control of mixing valve actuator ..................................................................148
3.18 Overtemperature protection for the pump heating circuit ............................149
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Landis & Staefa Division Summary 19.04.2001
3.19 Heat gains (Tf).............................................................................................150
3.20 Adaption sensitivity 1 (ZAF1).......................................................................151
3.21 Adaption sensitivity 2 (ZAF2).......................................................................152
3.22 P-band mixing valve (Xp) ............................................................................153
3.23 Integral action time mixing valve (Tn)..........................................................153
3.24 Actuator running time mixing valve..............................................................153
D.h.w. 154
3.25 Maximum nominal setpoint of d.h.w. temperature (TBWmax) ....................154
3.26 Switching differential of d.h.w. temperature (SDBW) ..................................155
3.26.1 d.h.w. temperature control...........................................................................155
3.26.2 D.h.w. temperature control with 2 sensors ..................................................156
3.27 Legionella function ......................................................................................157
3.28 Setpoint of legionella function .....................................................................158
3.29 Discharge protection during d.h.w. heating.................................................159
Service 160
3.30 Continuous display......................................................................................160
3.31 Software version..........................................................................................160
3.32 Device operating hours ...............................................................................161
4 General control processes ..........................................................................162
4.1 Generation of boiler temperature setpoint...................................................163
4.2 Automatic 24-hour heating limit...................................................................164
4.2.1 Without room influence................................................................................164
4.2.2 With room influence.....................................................................................165
4.3 Quick setback with room sensor .................................................................166
4.4 Overtemperature protection mixing heating circuit......................................167
4.5 Attenuated outside temperature..................................................................168
4.6 Composite outside temperature ..................................................................169
4.7 D.h.w. push .................................................................................................170
4.8 Pump and valve kick ...................................................................................171
4.9 Protection against discharging after d.h.w. heating.....................................171
4.10 Overview of pump operation .......................................................................172
4.11 Frost protection ...........................................................................................173
4.11.1 For the boiler ............................................................................................... 173
4.11.2 For the d.h.w................................................................................................173
4.11.3 For the heating circuit..................................................................................174
5 Application examples ..................................................................................175
5.1 Plant types...................................................................................................175
5.1.1 D.h.w. heating with diverting valve..............................................................176
5.2 Supplementary information on the plant types listed...................................176
5.3 Legend to plant types..................................................................................177
5.4 Electrical connections..................................................................................177
6 Dimensions..................................................................................................178
6.1.1 Panel cut-out ...............................................................................................178
6.1.2 Combination of controllers...........................................................................178
7 Technical data.............................................................................................179
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1 Summary
1.1 Brief description
The ALBATROS controllers described in this documentation are designed for
integration in mass-produced heat generating equipment and offer the following control
choices:
• Single- or 2-stage burner, 1 BMU
• D.h.w. charging pump or diverting valve
• 3-position mixing valve and circulating pump
The range of products comprises several units that are complementary in terms of
application and scope of functions. The controllers have communication capability and
can be combined to form extensive heating systems.
For more detailed information about the generation of LPB systems, refer to “Local
Process Bus (LPB), Basic Documentation, System Engineering“, document no.
CE1P2370E.
1.2 Features
• Heating controller for mixing and / or pump heating circuits with:
− weather-compensated flow temperature control
− weather-compensated flow temperature control with room influence
• 2 separately controlled heating circuits (mixing or pump heating circuits)
• Quick setback and boost heating
• Automatic 24-hour heating limit
• Automatic summer / winter changeover
• Remote operation via digital room unit
• The building's thermal dynamics are taken into c onsideration
• Automatic adjustment of heating curve to the type of building cons truction and the
heat demand (provided a room unit is connected)
• Adjustable flow temperature boost with mixing heating circuit
• Floor curing function
1)
• Single- or 2-stage burner
• BMU
(Boiler Management Unit)
• Heat generation lock with contact H
• Protective boiler start-up
• Protection against boiler overtemperatures (pump overrun)
• Adjustable minimum and maximum limitation of boiler temperature (boiler flow
temperature)
• Burner cycling protection by observing a minimum burner running time
• Frost protection for the house or building, the plant, d.h.w., the heating circuit, and the
boiler
• Protection for the pump and the mixing valve through periodic control (pump and
valve kick)
• Adjustable minimum and maximum limitation of flow temperature
• Protection against overtemperatures in the pump heating circuit
Systems
Heating circuits
Heat generation
Protection for the plant
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• Two 7-day heating programs
− 7-day heating program no. 1 for heating circuit 1
− 7-day heating program no. 2 for heating circuit 2
− Separate 7-day heating program for d.h.w. heating
• Temperature adjustment with the setpoint knob
• Automatic button for efficient operation throughout the year
• Chimney sweep function at the touch of a button
• Manual operation at the touch of a button
• Straightforward selection of operating mode via buttons
• Change of operating mode with contact H
• Output and input tests to assist c ommissioning and a functional test
• Service connection facility for local parameter settings and data logging
• D.h.w. heating with a charging pump or diverting valve
• D.h.w. heating with one or 2 sensors
• Reduced setpoint of d.h.w. temperature
• Selectable d.h.w. program
• Integrated legionella function
• Selectable priority for d.h.w. heating
• Adjustable boost of the d.h.w. charging temperature
• Automatic d.h.w. push
• D.h.w. demand with a sensor or thermostat
• Protection against discharging
• Communicating via Local Process Bus (LPB)
1)
• Communicating via point-to-point interface (PPS)
• Integrity of system architecture with all RVA... controllers
1)
• Can be extended to include up to 40 heating circuits (with central bus power supply)
1)
• Optional remote supervision
• Fault status signals and indications (locally, LPB and PPS)
1)
• Controllers of other manufacture can deliver their heat demand signal via potentialfree H-contact
• Controllers of other manufacture can deliver their heat demand in the form of DC
0…10 signals
• Analysis with service tool
1)
• Logging the number of burner hours run of stages 1 and 2
• Logging the number of burner starts of stages 1 and 2
• Logging the flue gas temperature
• Display of plant diagram no.
1
Not with RVA53.280
Operation
D.h.w.
Systems
1
Logging
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1.3 Range of products
The following units and accessories are designed for use with the ALBATROS range:
RVA63.280 Boiler and heating circuit controller
RVA53.280 "
QAA10 Digital room sensor
QAA50 Digital room unit
QAA70 Digital, multi-functional room unit
QAC31 Outside sensor (NTC 600)
QAC21 Outside sensor (Ni 1000)
QAZ21 Immersion sensor with cable
QAD21 Strap-on temperature sensor
Pt1000 Flue gas sensor (third party product)
AGP2S.02M
1
LPB (2 poles) violet
AGP2S.02G Room unit (2 poles ) blue
AGP2S.06A Sensor (6 poles) white
AGP2S.04G Sensor (4 poles) grey
AGP2S.02G Room unit PPS2 (2 poles) blue
AGP2S.04C Sensor (4 poles) yellow
AGP3S.02D Mains(2 poles) black
AGP3S.05D Burner (5 poles) red
AGP3S.03B Pumps (3 poles) brown
AGP3S.03K Actuator (3-poles) green
AGP3S.04F Pumps (4 poles) orange
AGP3S.03K Actuator 2 (3 poles) green
1
Not with RVA53.280
Controllers
Room units
Sensor
Screw type terminal strips
(Rast 5)
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1.4 Field of use
• OEMs
• Manufacturers of combi and heating boilers
• Residential and non-residential buildings with own zone heating and d.h.w. heating
facility
• Residential and non-residential buildings with central heating plant
• Standard heating systems, such as:
radiator, convector, underfloor and ceiling heating systems, and radiant panels
• Suited for
– heating plants with 2 heating circuits
– different types of heating systems (creation of extensive systems)
– several heating zones (creation of extensive systems)
• With or without d.h.w. heating
• Heating boilers with single- or 2-stage oil or gas burners
• Gas boilers with BMU
(Boiler Management Unit)
1.5 Product liability
• The products may only be used in building services plant and applications as
described above
• When using the products, all requirements specified in "Technical data" and
"Handling" must be satisfied
• When using the products in a system, all requirements contained in the
documentation “Local Process Bus (LPB), Basic Documentation, System
Engineering“ (document no. CE1P2370E) must be satisfied
• The local regulations (for installation, etc.) must be complied with
Target market
Types of buildings
Types of heating systems
Heat generating
equipment
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2 Handling
2.1 Installation
2.1.1 Regulations for installation
.
• Air circulation around the controller must be ensured, allowing the unit to emit the
heat produced by it.
A clearance of at least 10 mm must be provided for the controller's cooling slots
which are situated a the top and bottom of the housing.
The space should not be accessible and no objects should be placed there.
If the controller is enclosed in another closed (insulating) casing, a clearance of up to
100 mm must be observed on all sides
• The controller is designed conforming to the directives for safety class II mounted in
compliance with these regulations
• Power to the controller may be supplied only after it is completely fitted in the cut-out.
If this is not observed, there is a risk of electric shock hazard near the terminals and
through the cooling slots
• The controller may not be exposed to dripping water
• Permissible ambient temperature when mounted and when readyto
operate: 0...50 °C
2.1.2 Mounting location
• In the boiler front
• In the control panel front
2.1.3 Mounting procedure
• Turn off power supply
• Pull the prefabricated cables through
the cut-out
• Plug the connectors into the
respective sockets at the rear of the
controller
è Note:
The connectors are coded to make
certain they cannot be mixed up.
2373Z05
1. Making the
connections
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• Check to ensure the fixing levers are
turned inward
• Check to make certain there is
sufficient space between the front
panel and the fixing levers
2373Z06
• Slide the controller into the panel cutout without applying any force
è Note:
Do not use any tools when inserting
the unit into the cut-out. If it does not
fit, check the size of the cut-out and
the position of the fixing levers.
2373Z07
Tighten the 2 screws on the front of the
controller
è Note:
Tighten the screws only slightly,
applying a torque of maximum
20 Ncm.
When tightening the screws, the
fixing levers automatically assume
their correct positions.
2373Z08
2. Check
3. Fitting
4. Fixing
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2.1.4 Required cut-out
The controller's mounting dimensions are 91 x 137 mm
Due to the dimensions of the front, however, the standard spacing is 144 mm
The controller can be fitted in front panels of different thicknesses
The mechanical mounting facility makes
it possible to arrange several controllers
in a row in one cut-out. In that case, it is
merely necessary to have a wider panel
cutout.
Also refer to "Dimensions" in Index.
2373Z09
2.1.5 Orientation
To avoid overtemperatures inside the
controller, the inclination may be no
more than 30° and there must be a
clearance of at least 10 mm above and
below the cooling slots.
This allows the controller to emit the
heat generated during operation.
1
0
m
m
m
a
x
.
3
0
°
2
3
7
1
Z
1
6
1
0
m
m
Dimensions of cut-out
Combination of
controllers
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2.2 Electrical installation
2.2.1 Regulations for installation
• Prior to installing the controller, the power supply must be turned off
• The connections for mains and low voltage are separated
• The wiring must be made in compliance with the requirements of safety class II. This
means that sensor and mains cables may not be run in the sameduct
2.2.2 wiring
When using prefabricated cables with connectors, the electrical installation is very
straightforward, owing to coding.
Rear of controller
2.2.2.1 Connection terminals of RVA63.280
2374A01
4 654M21M M
FN23F234 LF2F45F23
3M143M1
M
B8MB1
H1B2B3MB9MDA6MBDB
B12
A7
MD
B31/H2
B41
F2NY1
Y2
F6
Q2
L
F4
K4
F5
K5
F1
Q3/Y3
Q6
F3
Y5
Y6
2.2.2.2 Connection terminals of RVA53.280
2374A08
4 654M21M M
FN23F234 LF2F45F23
3M143M1
M
B8MB1
H1B2B3
M
B9MDA6
B12
A7
MD
B31/H2
B41
F2NY1
Y2
F6
Q2
L
F4
K4
F5
K5
F1
Q3/Y3
Q6
F3
Y5
Y6
Note
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Terminal Terminals Connector Color
MD Ground room unit bus (PPS) AGP2S.02G blue
A7 Room unit bus HC2 (PPS)
- Not used AGP2S.04C yellow
B12 Flow sensor mixing valve HC2
M Ground sensors
B8 Flue gas sensor
B31/H2 D.h.w. sensor 2 / contact H2 AGP2S.04G grey
B1 Flow sensor mixing valve HC1
M Ground sensors
- Not used
H1 Changeover contact AGP2S.06A white
B2 Boiler sensor
B3 D.h.w. sensor 1 / control thermostat
M Ground sensors
- Not used
B9 Outside sensor
MD Ground PPS (RG1, BMU) AGP2S.02G blue
A6 PPS (RG1, BMU)
MB Ground bus (LPB) AGP2S.02M violet
DB Data bus (LPB)
Terminal Terminals Connector Color
Y6 Mixing valve HC2 CLOSED AGP3S.03K green
Y5 Mixing valve HC2 OPEN
F3 Phases Y5 and Y6
- Not used AGP3S.04F orange
Q6 Circulating pump mixing heating circuit 2
Q2 Circulating pump mixing heating circuit 1
F6 Phase Q2
Y2 Mixing valve CLOSED AGP3S.03K green
Y1 Mixing valve OPEN
F2 Phase Y1and Y2
Q3/Y3 D.h.w.charging pump / d.h.w. diverting
valve
AGP3S.03B brown
- Not used
F1 Phase Q3/Y3
- Not used AGP3S.05D red
K5 Burner stage 2
F5 Phase burner stage 2
K4 Burner stage 1
F4 Phase burner stage 1
L Live AC 230 V (mains connection) AGP3S.02D black
N Neutral (mains connection)
Low voltage side
Mains voltage side
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2.3 Commissioning
To commission the controller:
• Make certain that mounting and electrical installation are in compliance with the
relevant requirements
• Make all plant-specific settings as described in section "Parameter settings"
• Reset the attenuated outside temperature
• Make the functional checks
2.3.1 Functional checks
To facilitate commissioning and fault tracing, the controller allows output and input tests
to be made. With these tests, the controller’s inputs and outputs can be checked.
Buttons Explanation Line
1 Press one of the line selection buttons.
This will take you to the programming mode.
2 Press both line selection buttons for at least 3
seconds.
This will take you to the programming mode “Heating
engineer” and, at the same time, to the output test.
3 Press the + or - button repeatedly, which will take you
one test step further:
Test step 0 All outputs are switched according to normal control
operation
Test step 1 All outputs are deactivated
Test step 2 Burner stage 1 (K4) is activated
Test step 3 Burner stages 1 and 2 (K4 + K5) are activated
Test step 4 D.h.w. charging pump / divertingvalve (Q3/ Y3) is
activated
Test step 5 Heating circuit 1 / boiler pump (Q2) is activated
Test step 6 Mixingvalve HC1OPEN (Y1) isactivated
Test step 7 Mixing valve HC1 CLOSED (Y2) is activated
Test step 8 Heating circuit pump HC2 (Q6) is activated
Test step 9 Mixingvalve HC2OPEN (Y5) isactivated
Test step 10 Mixing valve HC2 CLOSED (Y6) is activated
4 By pressing any of the operating mode or line
selection buttons, you leave the programming mode
and thus the output test.
Note:
If no button is pressed for about 8 minutes, the
controller will automatically return to the operating
mode selected last.
Prerequisites
Output test
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b)
c)
2374Z03
a)
a) The pointerbelow the symbol indicates the output activated
b) The numberindicates the current test step
c) The number indicates the selected setting line
Display
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Buttons Explanation Line
1 Press one of the line selection buttons.
This will take you to the programming mode.
2 Press both line selection buttons for at least 3
seconds.
This will take you to the programming mode "Heating
engineer”.
3
-
Press line selection button UP until you reach line 52.
This will take you to the input test.
4 Press the + or - button repeatedly, which will take you
one test step further:
Test step 0 Display of boiler temperature acquired with sensor
B2
Test step 1 Display of d.h.w. temperature acquired with sensor
B3
Test step 2 Display of input B31/H2/B41 according to the
function selected on line 174 [°C or ooo or ---].
Test step 3 Display offlow temperature HC1 acquired with
detector B1
Test step 4 Display offlow temperature HC2 acquired with
detector B12
Test step 5 Display of outside temperature acquired with
sensor B9
Test step 6 Display of room temperature acquired withroom
unit connected to A6
Test step 7 Display of room temperature acquired withroom
unit connected to A7
Test step 8 Display ofthe flue gas temperature acquired with
sensor B8
Test step 9 Display of input H1 according to the function
selected on line 170 [°C / 000 / - - -].
5 By pressing any of the operating mode buttons, you
leave the programming mode and thus the input test.
Note:
If no button is pressed for about 8 minutes, the
controller will automatically return to the operating
mode selected last.
Continuous
display
The selected sensor values are updated within a maximum of 5 seconds.
An open-circuit is displayed as – – –.
A short-circuit is displayed as o o o.
Input test
Note
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b)
c)
2374Z04
a)
a) The numberindicates the current test step
b) Displayed value of the temperature measured
c) The number indicates the selected setting line
Display
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2.4 Parameter settings for the end-user
The following settings can be made to meet the individual needs of the end-user.
Buttons Explanation Line
1
Press one of the line selection buttons UP/DOWN.
This will take you directly to the programming mode
"End-user”.
2
Press the line selection buttons to select the required
line.
The parameter list on the next 2 pages contains all
available lines.
•••
3
Press the + or - button to set the required value.
The setting will be stored as soon as you leave the
programming mode or change to another line.
The parameter list on the next 2 pages contains all
settings that can be made.
4
By pressing any of the operating mode buttons, you
leave the programming mode "End-user”.
è Note:
If no button is pressed for about 8 minutes, the
controller will automatically return to the operating
mode selected last.
Continuou
s display
Description
Setting
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2.4.1 Overview of end-user parameters
RVA63.280
RVA53.280
Function
Range
Unit
Resolution
Factory setting
Setting the clock
1 1 Time of day 0...23:59 h / min 1 min 00:00
2 2 Weekday 1...7 Day 1 day 1
3 3 Date (day, month) 01.01...31.12 tt.MM 1 4 4 Year 1999...2099 jjjj 1 -
Time switch program 1
5 5 Pre-selection of weekday
1-7 7-day block
1...7 Individual days
1-7 / 1...7 Day 1 day -
66
Switch-on time 1. Period
- -:- -...24:00 h / min 10 min 06:00
77
Switch-off time 1. Period
- -:- -...24:00 h / min 10 min 22:00
88
Switch-on time 2. Period
- -:- -...24:00 h / min 10 min - -:- -
99
Switch-off time 2. Period
- -:- -...24:00 h / min 10 min - -:- -
10 10
Switch-on time 3. Period
- -:- -...24:00 h / min 10 min - -:- -
11 11
Switch-off time 3. Period
- -:- -...24:00 h / min 10 min - -:- -
Time switch program 3 (d.h.w.)
19 19 Pre-selection of weekday
1-7 7-day block
1...7 Individual days
1-7 / 1...7 Day 1 day -
20 20 Switch-on time 1. Period - -:- -...24:00 h / min 10 min 06:00
21 21 Switch-off time 1. Period - -:- -...24:00 h / min 10 min 22:00
22 22 Switch-on time 2. Period - -:- -...24:00 h / min 10 min - -:- 23 23 Switch-off time 2. Period - -:- -...24:00 h / min 10 min - -:- 24 24 Switch-on time 3. Period - -:- -...24:00 h / min 10 min - -:- 25 25 Switch-off time 3. Period - -:- -...24:00 h / min 10 min - -:- -
D.h.w.
26 26 Nominal setpoint of d.h.w. temperature (TBWw)
TBWRw Line 120
TBWmax Line 50 (OEM)
TBWR...TBWmax °C 1 55
Heating circuit
27 27 Reduced setpoint of room temperature
(TRRw)
TRF Frost protection setpoint of room temperature,
line 28
TRN Setpoint knob heating circuit 1 or 2
TRF...TRN °C 0,5 16
28 28 Frost protection setpoint of room temperature
(TRFw)
TRRw Line 27
4...TRRw °C 0,5 10
29 29 Summer / winter c hangeover temperature
(THG)
8...30 °C 0,5 17
30 30 Slope of heating curve (S)
- : - - Inactive(only HC2)
2.5...40 Active
- : - - / 2,5...40 - 0,5 15
33 33 Actual value of room temperature (TRx) 0...50 °C 0,5 34 34 Actual value of outside temperature (TAx)
To reset the attenuated outside temperature to TAx, press the
+ and- buttons simultaneously for 3 seconds.
-50...+50 °C 0,5 -
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RVA63.280
RVA53.280
Function
Range
Unit
Resolution
Factory setting
Heat generating equipment
35 35 Burner hours run stage 1 or BMU (tBR1) 0...65535 h 1 0
36 36 Burner hours run stage 2 (tBR2) 0... 65535 h 1 0
37 37 Number of burner starts stage 1 0... 65535 - 1 0
38 38 Number of burner starts stage 2 0... 65535 - 1 0
Standard values
39 39 Standard times for switching programs 1, 2, 3
(lines 6...11 and 20...25)
To activate, press the + and - buttonssimultaneously for 3
seconds
----
Holidays
40 40 Holiday period 1...8 - 1 1
41 41 Beginning of holiday period
- -.-- No holiday period programmed
Month, day
To reset the selected holiday period, press the + and - buttons
simultaneously for 3 seconds.
--.--
01.01...31.12
tt.MM 1 -
42 42 End of holiday period
- -.-- No holiday period programmed
Month, day
To reset the selected holiday period, press the + and - buttons
simultaneously for 3 seconds.
--.--
01.01...31.12
tt.MM 1 -
Service
49 49 Indication of BMU error code
0...255 Error code
0...255 - 1 -
50 50 Indication of faults 0...255 - 1 -
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2.5 Parameter settings for the heating engineer
Configuration and parameter settings to be made by the heating engineer.
Buttons Explanation Line
1
Press one of the line selection buttons UP/DOWN.
This will take you directly to the programming mode
"End-user”.
2
Press both line selection buttons for at least 3 seconds.
This will take you directly to the programming mode
"Heating engineer”.
3
Press the line selection buttons to select the required
line.
The parameter list on the next 2 pages contains all
available lines.
•••
4
Press the + or - button to set the required value.
The setting will be stored as soon as you leave the
programming mode or change to another line.
The parameter list on the next 2 pages contains all
settings that can be made.
5
By pressing any of the operating mode buttons you
leave the programming mode "Heating engineer”.
è Note:
If no button is pressed for about 8 minutes, the
controller will automatically return to the operating
mode selected last.
Continuou
s display
Description
Setting
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2.5.1 Overview of heating engineer parameters
RVA63.280
RVA53.280
Function
Range
Unit
Resolution
Factory setting
Service values
51 51 Output test
0 Control mode according to the operating state
1 Alloutputs OFF
2 Burnerstage 1 ON K4
3 Burnerstages 1 and 2 ON K4 / K5
4 D.h.w. chargingpump ON Q3/Y3
D.h.w. diverting valve OPEN Q3 / Y3
5 Heating circuit pump 1 Q2
6 Mixing valve 1 open Y1
7 Mixing valve 1 close Y2
8 Heating circuit pump 2 Q6
9 Mixing valve 2 open Y5
10 Mixing valve 2 close Y6
0...10 - 1 0
52 52 Input test
0 Boiler sensor B2
1 D.h.w. sensor 1 B3
2 Display of input B31/H2 B31
3 Flow sensor HC1 B1
4 Flow sensor HC2 B12
5 Outside sensor B9
6 Room sensor 1 RG1, A6
7 Room sensor 2 RG2, A7
8 Flue gassensor B8
9 Display of input H1 H1
0...9 - 1 0
53 53 Display of plant type 1...127 - 1 -
Actual values
55 55 Actual value of flow temperature (TVx)
Input B1/B12
0...140 °C 1 -
56 56 Actual value of boiler temperature (TKx)
Input B2/B4
0...140 °C 1 -
57 - Actual value of common flow temperature 0...140 °C 1 61 61 Actual value 1 of d.h.w. temperature (TBWx)
(Higher temperature)
0...140 °C 1 -
62 62 Actual value 2 of d.h.w. temperature (TBWx)
(Lower temperature)
0...140 °C 1 -
63 63 Display of maximum flue gas temperature
(TGxmax)
To make a reset to the current value, press the + and –
buttons simultaneously for 3 seconds
0...350 °C 1 -
65 65 Attenuated outside temperature(TAxged) -50...+50 °C 0.5 66 66
Composite outside temperature
(Taxgem) -50...+50 °C 0.5 -
67 -
Outside temperature source
- - . - - Nosignal
00.01...14.16 Address
- -:- / 00.01...14.16
-1-
Setpoints
68 68 Display of boiler temperature setpoint 0...140 °C 1 69 - Display of common flow temperature setpoint 0...140 °C 1 70 70 Display of d.h.w temperature setpoint 0...140 °C 1 71 71 Display of nominal room temperature
setpoint
Nominal setpoint incl. room unit readjustment
0...35 °C 0,5 -
73 73 Display of room temperature setpoint (TRw) 0...35 °C 0,5 75 75 Display of flow temperature setpoint 0...140 °C 1 -
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RVA63.280
RVA53.280
Function
Range
Unit
Resolution
Factory setting
77 - Floor curing data
Day
Flow temperature setpoint
0...32
0...95
°C
1-
Heat generating equipment
80 80 Type of heat source
0 No heatgeneration or PPS-BMU
1 Single-stage burner
2 2-stage burner
0...2 - 1 2
81 81 Minimum limitation of boiler temperature (TKmin)
Tkmin
OEM
Line 1 OEM
Tkmax Line2OEM
TKmin
OEM
...TKmax °C 1 40
82 82 Extra heating for the bathroom
(HK2 ist pump heating circuits)
0Inactive
1Active
0/1 - 1 0
Heating circuit
100 100 Parallel displacement of heating curve -4,5...+4,5 °C (K) 0,5 0,0
101 101 Room influence
0Inactive
1Active
0/1 - 1 1
102 102 Switching differential of the room temperature
(SDR)
--.- Inactive
0.5...4.0 Active
- -:-...4,0 °C (K) 0,5 - -:-
103 103 Operating mode of room unit
0 Parallel action: Roomunit 1 on heating circuit 1
Room unit 2 on heating circuit 2
1 Crossed action: Room unit 1 on heating circuit 2
Room unit 2 on heating circuit 1
2 Serial action: Room unit 1 on heating circuits1
and 2
0...2 - 1 0
104 104 Room unit values
0 Parallel action: Roomunit 1 on heating circuit 1
Room unit 2 on heating circuit 2
1 Crossed action: Room unit 1 on heating circuit 2
Room unit 2 on heating circuit 1
2 Serial action: Room unit 1 on heating circuits1
and 2
0...2 - 1 0
105 105 Minimum limitation of flow temperature setpoint
(TVmin)
TVmax Line 107
8...TVmax °C 1 8
107 107 Maximum limitation of flow temperature setpoint
(TVmax)
Tvmin Line 105
TVmin...95 °C 1 80
109 109 Maximum forward shift of optimum start control
0 forwardshift/OFF
00:00...06:00 hh:mm 10 min 00:00
110 110 Maximum forward shift of optimum stop control
0 Noforwardingshift
00:00...06:00 hh:mm 10 min 00:00
113 113 Type of building construction
0Heavy
1 Light
0/1 - 1 1
114 114 Adaption of heating curve
0Inactive
1Active
0/1 - 1 1
115 115 Gain of locking signal 0...200 % 1 100
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RVA63.280
RVA53.280
Function
Range
Unit
Resolution
Factory setting
116 - Floor curing
0Off
1 Functional heating
2 Floor curing
3 Functional and floor curing heating
0...3 - 1 0
D.h.w.
120 120 Reduced setpoint of d.h.w. temperature (TBWR)
TBWw Line 26
8...TBWw °C 1 40
121 121 D.h.w. heating program
0 24 h/day
1 Heating program with forward shift
2 Timeswitchprogram3
0...2 - 1 1
123 - Assignment of d.h.w. heating
0 Local heating circuit
1 All heatingcircuits in the segment
2 All heatingcircuits in the system
0...2 - 1 2
124 124 D.h.w. charging
0 Once perday with a forward shift of 2.5 hours
1 Severaltimesperdaywitha1hforwardshift
0/1 - 1 1
125 125 Type of d.h.w. demand
0Sensor
1 Control thermostat
0/1 - 1 0
126 126 Boost of the flow temperature setpoint for d.h.w.
heating (UEBW)
0...30 °C (K) 1 16
127 127 D.h.w. priority
0 Absolute (mixing and pump heating circuit)
1 Shifting (mixing and pump heating circuit)
2 None (parallel)
3 Mixing heating circuit (shifted)
Pump heating circuit (absolut)
0...3 - 1 1
128 128 Controlling element for d.h.w.
0 Charging pump
1 Diverting valve
0/1 - 1 0
LPB / system
140 - LPB device address
0 Standalone
1...16 Deviceaddress (system)
0...16 - 1 0
141 - LPB segment address
0 Heat source segment
1...14 Heat consumption segments
0...14 - 1 0
142 - LPB power supply
0 Off (centralbus power supply
1) Auto (buspower supply via controller)
0/1 - 1 1
143 - Display of LPB power supply On / OFF - 145 - Range of action of central changeover
0 In the segment
1 In thesystem (if segment address = 0)
0/1 - 1 1
146 - Automatic summer / winter changeover
0 Local changeover
1 Central changeover of all heating circuits
0/1 - 1 0
147 - Central stand-by switch
1)
0Off
1ON
0/1 - 1 0
148 - Clock mode
0 Autonomous clock
1 System time without adjustment
2 (System time with adjustment)
3 System clock (master)
0...3 - 1 0
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RVA63.280
RVA53.280
Function
Range
Unit
Resolution
Factory setting
150 150 Winter- / summertime changeover 01.01...31.12 tt.MM 1 25.03
151 151 Summer- / wintertime changeover 01.01...31.12 tt.MM 1 25.10
155 155 Display of PPS communication (A6)
0 0 0 Short-circuit
- - - No communication
0...255 OK communication
000/---/0...255 - 1 -
156 156 Display of PPS communication room unit 2 (A7)
000 Short-circuit
- - - No communication, no room unit
0...255 Room unit number, communication OK
0...255 - 1 0
Multifunktional inputs (H1) (H2/B31)
170 170 Input H1
0 Changeover of operating mode of all HC and
d.h.w.
1 Changeover of operating mode of all HC
2 Min. flow temperature setpoint(TVHw)
3 Heat generation lock
1 Demand for heat DC 0...10 V
5 Changeover of operating mode HC1
6 Changeover of operating mode HC2
0...6 - 1 0
171 171 Minimum flow temperature setpoint contact H
(TVHw)
...TKmax Line 2 OEM
8...TKmax °C 1 70
172 172 Maximum value of heat demand signal (DC 0...10
V) H1
5...130 °C 1 100
173 173 Operating action contacts H1 and H2
0N.C.
1N.O.
0/1 - 1 1
174 174 Input B31/H2
0 D.h.w. sensor 2
1 Min. flow setpoint (TVHw)
2 Heat generation lock
1 Changeover of operating mode HC1
4 Changeover of operating mode HC2
0...4 - 1 0
1)
This line is active only if the unit is addressed as the heat generation master. Also refer
to "LPB device address" in Index.
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2.6 Parameter settings for the OEM
Boiler-specific settings and protective functions for the boiler manufacturer.
Buttons Explanation Line
1
Press one of the line selection buttons UP/DOWN.
This will take you directly to the programming mode
"End-user”.
2
9s
Press both line selection buttons for at least 9 seconds.
A special display for entering the code will appear.
3
CODE
Press buttons
and to enter the required
combination of the access code.
If the combination of buttons is correct, you reach the
programming mode “OEM”.
è Wrong code:
If the code has been entered incorrectly, the display will
change to the "Parameter settings for the heating
engineer”.
4
Press the line selection buttons to select the required
line.
The parameter list on the next 2 pages contains all
available lines.
•••
5
Press the + or - button to set the required value.
The setting will be stored as soon as you leave the
programming mode or change to another line.
The parameter list on the next 2 pages contains all
settings that can be made.
6
By pressing any of the operating mode buttons you leave
the programming mode “OEM”.
è Note:
If no button is pressed for about 8 minutes, thecontroller
will automatically return to the operating mode selected
last.
continuo
us
display
2374Z10
Whether correct or incorrect, each push of a button will be adopted asa digit of the
code. As a confirmation, the respective digit changes to 1.
Description
Setting
Example
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2.6.1 Overview of OEM parameters
RVA63.280
RVA53.280
Function
Range
Unit
Resolution
Factory setting
Heat generating equipment
1 1 Min. limitation of boiler temperature OEM
(TKmin
OEM
)
Tkmin Line 81
8...TKmin °C 1 40
2 2 Maximum limitation of boiler temperature
(TKmax)
Tkmin Line 81
TKmin...120 °C 1 80
3 3 Switching differential of the boiler temperature 0...20 °C (K) 1 8
4 4 Min. limitation of burner running time 0...10 min 1 4
5 5 Release limit (integral) of burner stage 2 0...500 °C (K) min 1 50
6 6 Reset limit (integral) of burner stage 2 0...500 °C (K) min 1 10
8 8 Pump overrun time
(after burner OFF)
0...20 min 1 5
9 9 Operating mode of boiler
0 Continuous mode: Ohneverlängerter
burner running time
1 Automatic mode: Ohne verlängerter
burner running time
2 Automatic mode: Mit verlängerter
burner running time
0...2 - 1 1
10 10 Protective boiler start-up
0No
1Yes
0/1 - 1 1
12 12 Control of boiler pump
0 Mixed temperature requisition
1 Parallel to burner operation
0/1 - 1 0
Heating circuit
30 30 Boost of flow temperature setpoint mixing
valve (UEM)
0...50 °C (K) 1 10
31 31 Gain factor of room influence (KORR) 0...20 - 1 4
32 32 Constant for quick setback and optimum start
control (KON)
0...20 - 1 2
33 33 Boost of room temperature setpoint (DTRSA)
(with boost heating)
0...20 °C (K) 1 5
34 34 Frost protection for the plant
0Inactive
1Active
0/1 - 1 1
35 35 Control mode of actuator (Y1 / Y5)
0 2-position (Y1) / (Y5)
1 3-position (Y1,Y2 / Y5,Y6)
0/1 - 1 1
36 36 Switching differential of actuator
For 2-position mixing valve
0...20 °C (K) 1 2
37 37 Overtemperature protection for the pump heating
circuit
0Inactive
1Active
0/1 - 1 1
38 38 Heat gains (Tf) -2...+4 °C 0,1 0
39 39 Adaption sensitivity 1 (ZAF1) 1...15 - 1 15
40 40 Adaption sensitivity 2 (ZAF2) 1...15 - 1 15
41 41 P-band mixing valve (Xp) 1...100 °C (K) 1 32
42 42 Integral action time mixing valve (Tn) 10...873 s 1 120
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RVA63.280
RVA53.280
Function
Range
Unit
Resolution
Factory setting
43 43 Actuator running time mixing valve 30...873 s 1 120
D.h.w.
50 50 Maximum nominal setpoint of d.h.w. temperature
(TBWmax)
8...80 °C 1 60
51 51 Switching differential of d.h.w. temperature
(SDBW)
0...20 °C (K) 1 5
52 52 Legionella function
0Inactive
1Active
0/1 - 1 1
53 53 Setpoint of legionella function 8...95 °C 1 65
54 54 Discharge protection during d.h.w. heating
0No
1 Continuously
2Partly
0...2 - 1 2
Service
90 90 Continuous display
0 Weekday / time of day
1 Actual value of boiler temperature
0/1 - 1 0
91 91 Software version 00.0...99.0 - 1 92 92 Device operating hours 0...500000 h 1 0
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2.7 Operation
Operating Instructions are inserted at the rear of the unit's front cover.
2.7.1 Operating elements
BUS
ECO
2
2374Z01
8
1
11
3
4
76 5
10
9
Operating element
Function
Room temperature setpoint knob
HC1
Adjustment of room temperature setpoint
for heating circuit 1
Room temperature setpoint knob
HC2
Adjustment of room temperature setpoint
for heating circuit 2
Setting buttons
Parameter settings
Line selection buttons
Parameter settings
Heating circuit selection button
Pre-selection of heating circuit when
making settings
Function button with LED for
manual operation
Activation of manual operation
Function button with LED for
chimney sweep
Activation of chimney sweep function
Operating mode buttons heating
circuit
Operating mode changes to:
Automatic operation
Continuous operation
Stand-by
Operating mode button d.h.w.
D.h.w. heating ON / OFF
Display
Display of actual values and settings
Connection facility for PC tool
Diagnostics and service
Introduction
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a)
b)
c)
BUS
ECO
2374Z02
d)
a) Symbols - indication of operating state with the black pointers
b) Display during normal control mode or when making settings
c) Programming line when making settings
d) Heating program of current day
Display
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2.8 Operational faults
2.8.1.1 No display on the controller:
• Is the heating plant's main switch turned on?
• Are the fuses in order?
• Check wiring
2.8.1.2 Heating control does not function. There is no display of the time of
day, or the time displayed is incorrect
• Check fuses of the plant
• Make a reset: Isolate controller from the mains supply for about 5 seconds (e.g. turn
off the boiler's main switch for 5 seconds)
• Set the correct time of day on the controller (operating l ine 1).
• Check the time of day on the clock time master if the controller is used in a system
2.8.1.3 Controlling element does not open / close or does not operate
correctly.
• Manual lever of controlling element may not be engaged
• Wiring to the controlling element interrupted (output test)
• Check wiring of the sensors (input test)
• Quick setback or automatic 24-hour heating limit is active
• Check the settings, especially the selection of the double function
2.8.1.4 Heating circuit pump does not run
• Is the right type of plant displayed (setting line 53)?
• Check wiring and fuse (output test)
• Check wiring of the sensors (input test)
• Check the settings, especially the selection of the double function
2.8.1.5 Burner does not switch on
• Press burner's reset button
• Check the fuses
• Wiring to the controlling element interrupted (output test)
• Check the electromechanical control thermostat (TR) and the manual reset safety
limit thermostat (STB)
• Quick setback or automatic 24-hour heating limit is active
• Check wiring of the boiler temperature sensor (input test)
2.8.1.6 Pump does not run
• Check wiring and fuse (output test)
• Check wiring of the sensors (input test)
2.8.1.7 D.h.w. is not being heated
• Has the button for d.h.w. heating been activated?
• Check setting of the electromechanical control thermostat (TR) installed on the
boiler. It must be above the TKmax setting
• Check setpoint of the d.h.w. temperature
• Check actual value of the d.h.w. temperature
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• Check if d.h.w. heating is released
• Check wiring and fuse of the charging pump (input test)
• Check wiring of the d.h.w. temperature sensor (output test)
2.8.1.8 The room temperature does not agree with the required temperature
level:
• Check the room temperature setpoints
• Is the required operating mode indicated?
• Is automatic operation overridden by the room unit?
• Are weekday, time of day and the displayed heating program correct?
• Has the heating curve slope been correctly set?
• Check wiring of outside sensor
2.8.1.9 Heating plant does not function properly
• Check all parameters based on the setting instructions "Heating engineer" and the
operating instructions "End-user". especially the preselection of the double function
• Make the input test
• Make the output test
• Check the electromechanical control thermostat (TR) and the manual reset safety
limit thermostat (STB)
2.8.1.10 Frost protection for the plant does not function at all, or does not
function correctly
• Check correct functioning of the burner
• Check correct functioning of the pumps
• Frost protection for the plant in the case of pump heating circuits with active room
temperature limitation
2.8.1.11 Quick setback or boost heating does not function
• Check settings made on the heating engineer's level
• Fühler an A6,A7 kontrollieren (Eingangtest).
• Check the sensor connected to A6, A7 (input test)
2.8.1.12 Fault status signal; display shows "ER"
• For cause of error, refer to section "Parameter settings for end-user" on line 50
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1 Description of end-user settings
User interface
1.1 Operating modes of heating circuit
Straightforward and direct selection of heating circuit operating modes.
The control provides 3 different heating circuit operating modes that can be directly
selected as required.
Select the required operating mode by pressing the respective operating mode button.
It is located on the controller front for direct access by the user.
The setting can be made separately for both heating circuits with the heating circuit
selection button.
The d.h.w. operating mode will not be affected by the selected heating circuit operating
mode, with the exception of the holiday function and when the remote telephone switch
is activated
Operating
mode
Designation Effect of selected operating mode
Automatic
operation
• Heating according to the time program
(lines 5 to 11)
• Temperature setpoints according to the heating
program
• Protective functions active
• Changeover on the room unit active
• Automatic summer / winter changeover (ECO
functions) and automatic 24-hour heating limit
active
Continuous
operation
• Heating mode with no time program
• Temperature adjustment with the setpoint knob
• Protective functions active
• Changeover on room unit inactive
• Automatic summer / winter changeover (ECO
functions)
inactive
Stand-by • Heating OFF
• Temperature according to frost protection
• Protective functions active
• Changeover on room unit inactive
• Automatic summer / winter changeover (ECO
functions) and automatic 24-hour heating limit
active
Benefit
Description
Setting
Note
Effect
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The selected operating mode is indicated by illuminated buttons. A number of functions
can cause the displayed selection to change. The following table shows the possible
statuses. The following table shows the possible statuses:
Function Effect on button and meaning
Heat generation lock
line 170 = 3 or 174 = 2
• Selected HC operating mode button flashes when
contact H1 or H2 is closed
• D.h.w. operating mode button flashes when switched
on
Changeover of operating
mode
line 170 = 0
• HC operating mode
button flashes when contact
H1 is closed
• D.h.w. operating mode button flashes when switched
on
Changeover of operating
mode
line 170 = 1
• Selected HC operating mode button flashes when
contact H1 is closed
• D.h.w. operating mode button will not be affected
Changeover of operating
mode HC1
line 170 = 5 or
line 174 = 3
• Operating mode HC1 flashes when contact H1 or H2 is
closed
• D.h.w. operating mode button will not be affected
Changeover of operating
mode HC2
line 170 = 6 or
line 174 = 4
• Operating mode HC2 flashes when contact H1 or H2 is
closed
• D.h.w. operating mode button will not be affected
Minimum setpoint of flow
temperature
line 170 = 2 or 174 = 1
• Selected HC operating mode button flashes when
contact H1 or H2 is closed
• D.h.w. operating mode button will not be affected
Heat demand DC 0…10 V
line 170 = 4
• Selected HC operating mode button flashes when H1
demand is valid
• D.h.w. operating mode button will not be affected
Central stand-by switch
line 147 = 1
• HC operating mode
flashes
• D.h.w. operating mode button will not be affected
Settings on the room unit
Occupancy button • HC operating mode
flashes when occupancy
button is active.
• D.h.w. operating mode button will not be affected
Holiday function • HC operating mode flashes when holiday
function is active
• Depending on the setting made on line 123, the d.h.w.
operating mode button flashes when switched on
Changeover of the operating mode on the room unit is active only when the controller is
in automatic mode
.
The room temperature is transmitted to the controller via PPS, independent of the
selected operating mode.
Illuminated buttons
Settings on the
controller
Effect of room unit
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1.2 Operating mode of d.h.w. heating
Selection of d.h.w. heating mode independent of heating operation.
Selection is made directly on the user interface
D.h.w. heating is selected by pressing the respective button on the controller's user
interface.
By pressing the respective button, d.h.w. heating is switched on oroff.
• D.h.w. heating OFF - button dark.
D.h.w. is not being heated. Frost protection remains active, however, and prevents
the storage tank temperature from falling below a certain level
• D.h.w. heating ON - button illuminated.
The d.h.w. is heated according to the settings made
The following settings affect d.h.w. heating and must be checked to ensure proper
functioning:
Setting Setting
• Time switch program 3 19-25
• Nominal setpoint of the d.h.w. temperature 26
• Summer / winter changeover HC1 and HC2 (when using an
electric immersion heater)
29
• Assignment of d.h.w. heating 123
• Reduced setpoint of d.h.w. temperature 120
• D.h.w. heating program 121
• D.h.w. charging 124
• Type of d.h.w. demand 125
Benefit
Setting
Effect
Required settings
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1.3 Nominal room temperature setpoint
Straightforward and direct setting of the required nominal room temperature setpoint.
The heating system uses 3 different setpoints that can be adjusted:
The nominal room temperature setpoint described here
The reduced room temperature setpoint (setting on line 27)
The frost protection setpoint of the room temperature (setting on line 28).
The nominal room temperature setpoint is preadjusted with the
setpoint knob. It is located on the controller front for direct
access by the user.
Setting range Unit Factory setting
8...26 °C 20
0 2 4 6 8 101214161820222426
°C
2373Z10
Room temperature setpoint setting ranges
27 Setting "Reduced room temperature setpoint”
28 Setting "Frost protection setpoint of room temperature”
When the nominal room temperature setpoint is active, the rooms will be heated
according to the adjustment made with the setpoint knob.
Effect in the various operating modes:
Operating
mode
Effect of knob adjustment
Adjustment acts on the heating periods
Adjustment acts continuously
Adjustment has no effect
The adjustment made with the setpoint knob has priority over the reduced room
temperature setpoint entered (line 27). Especially in a situation when the adjustment
made with the knob is lower.
During the heating periods, the nominal room temperature setpoint is maintained. The
heating periods are in accordance with the settings made on lines 6 through 11.
Benefit
Description
Setting
Effect of temperature
setting
Note
Example
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024681012141618202224
h
Mo
...
So
2373Z11
1.3.1 Temperature adjustment via room unit
Temperature adjustment or readjustment via a room unit is active only when, on the
controller, automatic mode has been selected!
Adjustment made with the controller’s setpoint knob
= controller's nominal room temperature s etpoint
The QAA50 room unit has a knob for readjusting the setpoint in a + / - range. The
readjustment is added to the actual setpoint adjusted with the controller’s setpoint knob.
Adjustment made with the controller’s setpoint knob
+ readjustment made on the room unit (± 3 °C)
= controller's nominal room temperature s etpoint
Adjustment made with the controller’s setpoint knob 20 °C
Adjustment made with the controller’s setpoint knob + 2 °C
Resulting setpoint 22 °C
The QAA70 room unit has an absolute setpoint adjustment using a line, which replaces
the setpoint adjusted with the controller’s setpoint knob, provided automatic mode has
been selected on the controller.
In addition, the QAA70 has a knob for readjusting the setpoint in a + / - range. The
readjustment is added to the actual setpoint adjusted with the controller’s setpoint knob.
Setpoint programmed with the room unit
+ readjustment made on the room unit (± 3 °C)
= controller's nominal room temperature s etpoint
Adjustment made with the controller’s setpoint knob
(inactive)
22 °C
Setpoint adjustment on the room unit’s line 19 °C
Adjustment made with the controller’s setpoint knob + 2 °C
Resulting setpoint 21 °C
Without room unit
QAA50
Example:
QAA70
Example:
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1.4 Heating circuit selection button
The 2 heating circuits are separately adjustable
The controller provides separate control of 2 heatingcircuits . Separate settings are
offered for a number of functions. For these settings, a double function with 2 different
setting values is provided.
1. Before making a setting, the required heating circuit must be
selected with the heating circuit selection button.
2. Then, the setting for the function can be made as usual.
The heating circuit selection button has 2 LEDs, one at the top and one at the bottomof
the button, indicating the heating circuit selected.
Benefit
Description
Setting
Display
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1.5 Chimney sweep
At the touch of a button, the plant is ready for making flue gas measurements.
A function designed specifically for carrying out periodic flue gas measurements.
Activation: The chimney sweep f unction is activated by pressing this button. It is
accessible only when the cover of the controller is open
Deactivation: By pressing one of the operating mode or function buttons
By pressing again the chimney sweep button
Automatically after one hour
By selecting a number in the output test
During the time the chimney sweep function is activated, the heat output can be
increased or decreased by pressing the + / - buttons.
• With multistage burner:
The second burner stage can be switched on or off.
• When leaving the function, the controller will automatically return to the operating
mode previously selected
When the LED in the chimney sweep button is lit, the chimney sweep function is
active.
Multi-stage burner: Burner stages 1 and 2 will be switched on.
BMU The chimney sweep button has no effect. But the forced
signals will be generated as described below if the chimney
sweep function on the BMU is activated.
The boiler's switching differential will not be taken into consideration. To ensure
continuous burner operation, the only switch-off point used is the boilertemperature's
maximum limitation (TKmax).
First, all connected loads will be locked to ensure the boiler temperature will reach the
setpoint of 64 °C as quickly as possible.
When the minimum temperature of 64 °C is attained, the available heating circuits are
switched on one by one, using a dummy load, to make sure the heat generated by the
boiler is drawn off so that the burner will remain in operation.
In the case of a BMU, the loads will immediately be released.
2374Z11
Benefit
Description
Setting
Adaption of output
Notes
LED
Effect
Multi-stage burner
BMU
Display
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1.6 Manual operation
Manual heating operation in case the control system fails.
Manual operation is an operating mode in which all required plant components must be
manually adjusted and monitored. The controller's control functions have no more
impact on the relays.
The required boiler temperature setpoint must be manually adjusted on the boiler's
control thermostat. The boiler temperature is displayed on setting line 56.
The temperature of the heating circuits can be adjusted with the mixing valve, which
must also be set to manual operation. The room temperature is still displayed on setting
line 33.
Activation: Manual operation is activated by pressi ng this button. It is accessible
only when the cover of the controller is open
Deactivation: • By pressing one of the operating mode buttons
• By pressing again the manual operation button
When deactivating the function, the controller will automatically return to the operating
mode previously selected.
As soon as manual operation is activated, the following values are used f or the heat
demand:
• For space heating:
Maximum limitation of flow temperature setpoint (line 107)
• For the d.h.w.:
Nominal setpoint of d.h.w. temperature (line 26) + setpoint boost of d.h.w. flow
temperature (line 126)
• For the minimum flow temperature setpoint and heat demand DC 0…10 V:
Minimum setpoint of flow temperature, contact H (line 171)
The outputs will be switched to the following states:
Output Terminals Status
Burner stages 1 and 2 K4,K5 ON
Heating circuit pump Q2, Q6 ON
D.h.w. charging pump
D.h.w. diverting valve
Q3
Y3
ON
OFF
Mixing valve outputs Y1 / Y2, Y5 / Y6 OFF (de-energized)
The following functions are no longer active in manual operation:
maximum limitation of boiler temperature:
2374Z12
Benefit
Description
Boiler temperature
Room temperature
Setting
Note
Effect
Note
Display
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Setting the clock
Automatic changeover from summer- to wintertime, and vice versa.
Fast and easy-to-understand time settings.
To ensure proper operation of the heating program, the 24-hour time switch with the
time of day and weekday must be correctly set.
Between setting of date (line 3) and setting of weekday (line 2) there is no link. This
means that when the set date falls on a Wednesday, f or example,Wednesday as a
weekday must also be set.
Automatic summer- / wintertime changeover adapts the time of day automatically. Also
refer to "summer- / wintertime" in Index.
The time of day can be set from a remote location via the bus system,provided clock
operation is appropriately set. Also refer to "clock mode" in Index.
1.7 Time of day
Setting range Unit
00:00...23:59 Hour : Minute
The controller's clock time is set in agreement with the correct time. This setting is
important to make certain the controller’s heating program will operate correctly.
During the setting procedure, the clock continues to run
Each time the + or - button is pressed, the seconds are reset to zero
1.8 Weekday
Setting range Unit
1...7 Day
The time switch will be set to the selected weekday. This setting is important to make
certain the controller’s heating program will operate correctly.
1 = Monday
2 = Tuesday
3 = Wednesday
4 = Thursday
5 = Friday
6 = Saturday
7 = Sunday
Benefit
Description
Note
Summer- / wintertime
Systemtime
Setting
Effect
Notes
Setting
Effect
Weekday table
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1.9 Date (day, month)
Setting range Unit
01:01...31:12 Day month
Day and month of the controller will be based on this setting. This setting of date is
important to make certain the controller’s holiday program and summer- / wintertime
changeover will operate correctly.
1.10 Year
Setting range Unit
1999...2099 Year
The year of the controller will be based on this setting. This setting of year is important
to make certain the controller’s holiday program and summer- / wintertime changeover
will operate correctly.
Setting
Effect
Setting
Effect
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Time switch programs 1 and 2
The heating system operates only if there is demand for heat.
The user can set the heating periods to suit his lifestyle.
Energy can be saved by making adequate use of the heating program.
The time switch program consists of the switching times to be entered for the weekdays
or the 7-day block. The controller has 3 time switch programs that function
independently of one another. Time switch programs 1 and 2 are to be entered on the
same lines, but must be preselected with the heating circuit selection button .
This time switch program is basically intended for heating circuits 1 and 2.
1.11 Pre-selection of weekday: for time switch
programs 1 and 2
This is a preselection of the weekdays or of the 7-day block to set the switching times
for time switch program 1.
The heating program thus set becomes active with automatic mode
.
Setting range Unit
1-7
1...7
7-day block
Individual days
This setting must be made before the switching times are entered!
For every day on which other switching times shall apply, the preselection of the
individual day with subsequent entry of the switching times must be repeated
This setting is used to select either the whole week (1-7) or individual days (1...7).
7-day block
Entry of the switching times from line 6 to 11 is identical for every day f rom Monday
through Sunday.
Example:
024681012141618202224
h
Mo
...
So
2373Z11
Switching time for nominal setpoint
Switching time for reduced setpoint
Individual days
The setting of the switching times from line 6 through 11 is entered only for the
individual day selected here.
è Tip
First, choose the 7-day block (1-7) to enter the switching times that apply to the
majority of days; then, select the individual days (1...7) to m ake the required
adjustments.
Benefits
Description
Description
Setting
Important
Effect
Entry of 1-7
Entry of 1...7
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0 2 4 6 8 1012141618202224
h
Sa
Mo
Di
Mi
Do
Fr
So
2373Z12
Example:
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1.12 Switching times of time switch programs 1
and 2
This is the setting of the switching times of time switch program at which the
temperature setpoints for the relevant heating circuit will change.
The heating program thus set becomes active with automatic mode
.
Setting range Unit Factory setting
- -:- -...24:00 h : min See "Program overview"
below
First, select the weekday for which the switching times shall be entered!
The controller then makes a check to ensure the entries have been madein the correct
order.
At the times entered, the program will switch to the respective temperature setpoints.
The table below shows at what times the setpoints will be activated.
Entry:
––:–– Switchingpointinactive
00:00...24:00At the time entered, heating to the respec tive temperature is ensured.
Line Switching point Temperature setpoint Standard
Switch-on time period 1 Setpoint of knob 06:00
Switch-off time period 1
Reduced setpoint
22:00
Switch-on time period 2 Setpoint of knob ––:––
Switch-off time period 2
Reduced setpoint
––:––
Switch-on time period 3 Setpoint of knob ––:––
Switch-off time period 3
Reduced setpoint
––:––
In AUTO mode, the time switch program can be set on both the controller (as described
above) and on the QAA70 room unit. It is always the last action that is active.
Description
Setting
•••
Important
Note
Effect
Program overview
Effect of room unit
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Time switch program 3 (d.h.w.)
D.h.w. is heated only if required.
The user can set the d.h.w. heating times to suit his lifestyle.
Energy can be saved by making adequate use of the timeswitch program.
The time switch program consists of the switching times to be entered for the weekdays
or the 7-day block. The controller has 3 time switch programs that function
independently of one another.
The d.h.w. time switch program is always used for d.h.w. heating.
1.13 Preselection of weekday for time switch
program 3 (d.h.w.)
This is a pre-selection of the weekdays or the 7-day block us ed for the switching time
settings of the d.h.w. time switch program.
The time switch program thus set is activated by pressing the d.h.w. operating mode
button
.
Setting range Unit
1-7
1...7
7-day block
Individual days
• This setting must be made before the switching times are entered!
• For every day on which other switching times shall apply, the preselection of the
individual day with subsequent entry of the switching times must be repeated
This setting is used to select either the whole week (1-7) or individual days (1...7).
Entry:
1-7 7-dayblock:
Entry of the switching times on lines 20 through 25 is identical for every day from
Monday through Sunday
1...7 Individual days:
Entry of the switching times on lines 20 through 25 is made only for the
individual day selected here
For an example, refer to the graph in the previous section “Time switch program 1".
Benefit
Description
Description
Setting
Important
Effect
Example:
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1.14 Switching times of time switch program 3
(d.h.w.)
This is the setting of the switching times for d.h.w. time switch program at which the
d.h.w. temperature setpoint will change.
The time switch program thus set is activated by pressing the d.h.w. operating mode
button
.
Setting range Unit Factory setting
- -:- -...24:00 h : min See "Program overview"
below
First, select the weekday for which the switching times shall be entered!
The controller then makes a check to ensure the entries have been madein the correct
order.
At the times entered, the program will switch to the respective temperature setpoints.
The table below shows at what times the setpoints will be activated.
Entry:
––:–– Switchingpointinactive
00:00...24:00At the time entered, heating to the respec tive temperature is ensured.
Line Switching point D.h.w temperature setpoint Standard
Switch-on time period 1
Nominal setpoint
06:00
Switch-off time period 1
Reduced setpoint
22:00
Switch-on time period 2
Nominal setpoint
––:––
Switch-off time period 2
Reduced setpoint
––:––
Switch-on time period 3
Nominal setpoint
––:––
Switch-off time period 3
Reduced setpoint
––:––
Description
Setting
•••
Important
Note
Effect
Program overview
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D.h.w. values
1.15 Nominal setpoint of d.h.w. temperature
(TBWw)
D.h.w. heating only if there is demand for it.
Possibility of using 2 different d.h.w. temperature setpoints.
Setting range Unit Factory setting
TBWR...TBWmax °C 55
TBWR Reduced setpoint of d.h.w. temperature(setting on line 120)
TBWmax Maximum nominal setpoint of d.h.w. temperature (setting on line 50
OEM
)
The temperature setpoint during normal d.h.w. operation will be changed.
0102030405060708090100°C
2373Z13
26 Setting "Nominal setpoint of d.h.w. temperature”
120 Setting "Reduced setpoint of d.h.w. temperature”
50
OEM
Setting "Maximum nominal setpoint ofd.h.w. temperature”
D.h.w. heating has 2 different setpoints that can be us ed:
Nominal setpoint of d.h.w. temperature: It ensures the d.h.w. temperature required
during main occupancy times
Reduced setpoint of d.h.w. temperature (setting on line 120): It ensures the d.h.w.
temperature required outside main occupancy times
The times at which these d.h.w. setpoints shall apply can be set with the d.h.w.
program on line 121.
Benefit
Setting
Effect
D.h.w. temperature
setpoints
D.h.w. program
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Heating circuits
1.16 Reduced setpoint of room temperature
(TRRw)
Lower room temperatures during non-occupancy times, e.g. during the night.
Energy savings.
The heating system has 3 different setpoints that can be adjusted:
The reduced room temperature setpoint described here.
The nominal room temperature setpoint (to be adjusted with the setpoint knob).
The frost protection setpoint of the room temperature (setting on line 28).
Setting range Unit Factory setting
TRF...TRN °C 16
TRF Room temperature for frost protection (setting on line 28)
TRN Nominal room temperature setpoint (to be adjusted with the setpoint knob)
If the required temperature level cannot be set, the adjustment made with the setpoint
knob may be too low. It is not possible to set a value above the adjustment madewith
the setpoint knob.
0 2 4 6 8 101214161820222426
°C
2373Z10
Room temperature setpoint setting ranges
27 Setting "Reduced room temperature setpoint ”
28 Setting "Frost protection setpoint of room temperature”
With this setting, the reduced room temperature setpoint will change to the level
required outside the heating periods
.
The heating periods are in accordance with the settings made on lines 6 through 11.
024681012141618202224
h
Mo
...
So
2373Z11
Benefit
Description
Setting
Note
Effect
Example
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1.17 Frost protection setpoint of room
temperature (TRF)
Protection of building against frost.
Caution
This function is ensured only when the heating plant operates properly!
Frost protection is an automatic switching on function which is activated when the
outside temperature falls below freezing.
Setting range Unit Factory setting
4...TRRw °C 10
TRRw Reduced room temperature setpoint (setting one line 27)
This setting will change the frost protection setpoint of the roomtemperature.
In operating mode
, the room temperature is prevented from falling below a certain
level. This means that the frost protection setpoint of the room temperature
will be
maintained.
0 2 4 6 8 101214161820222426
°C
2373Z10
Room temperature setpoint setting ranges
27 Setting "Reduced room temperature setpoint”
28 Setting "Frost protection setpoint of room temperature”
Benefit
Description
Setting
Effect
Frost protection for the
building
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1.18 Summer / winter changeover temperature
HC1 and HC2 (THG)
• Fully automatic operation throughout the year.
• The heating will not be switched on when the outside temperature drops for short
periods of time.
• Additional savings function.
• Separate changeover of the heating circuits.
The summer / winter changeover temperature is the criterion f or automaticsummer /
winter changeover of the heating plant.
Setting range Unit Factory setting
8...30.0 °C 17
By changing the setting, the respective periods of time will be shortened or ex tended.
Entry:
Increase: Winter operation will start earlier
Summer operation will start later
Decrease: Winter operation will start later
Summer operation will start earlier
The summer / winter changeover temperature can act either locally or on other devices
in the system (also refer to section "Effect of summer / winter changeover
temperature") Also refer to "effect of summer / winter changeover
function" in Index.
This function only acts in automatic mode
The display will show "ECO“
To determine changeover, the setting of the summer / winter changeover temperature
( ± a fixed switching differential) is compared with the attenuated outside temperature.
Also refer to “attenuated outside temperature” in Index.
Heating OFF (from winter to summer)
TAged>THG+1°C
Heating ON (from summer to winter)
TAged < THG - 1°C
Benefit
Description
Setting
Effect
Notes
Changeover
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ON
17
T
THG
TAged
°C
H
OFF
t
2371D06
THG
+1 °C
THG
-1 °C
16
18
19
20
501015
Changeover between summerand winteroperation
TAged Attenuated outside temperature
THG Summer / w interchangeover temperature
T Temperature
tTime
H Heating
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1.19 Slope of heating curve (S)
Constant room temperature in spite of outside temperature variations.
The controller generates the flow temperature setpoint only for heating c ircuit 1, based
on the selected heating curve.
Setting range Unit Factory setting
Heating circuit 1: 2.5...40.0 Increment 15.0
Heating circuit 2: – – . – / 2.5...40.0 Increment 15.0
By changing the setting, the slope of the heating curve will be increased or decreased.
Entry:
– – : – All functions of heating circuit 2 are deactivated Frost protection for the
building and the plant will not be active (frost protection for the boiler and
d.h.w. remains active).
2.5...40.0 All functions of the heating circuit are activated
Increase: The f low temperaturewill be raised when the outside temperature drops
Decrease: The flow temperature will be raised less when the outside temperature
drops
This setting also has an effect on the generation of the type of plant displayedon line
53. The switching on and off of the heating circuit through the setting – : – – or a value
changes the plant configuration accordingly.
Using the heating curve, the controller generates the flow temperature setpoint,
enabling the system to maintain a constant room temperature even without using a
room sensor.
The steeper the slope of the heating curve, the higher the flow temperature setpoint at
low outside temperatures.
Comfort is considerably enhanced when using a room sensor.
20 10 0 -10 -20
-30
90
80
70
60
50
40
30
°C
°C
40
35
30
27,5 25 22,5
20
17,5
15
12,5
10
7,5
5
2,5
100
2000D07
TA
TV
Heating circuit diagram
TV Flow temperature
TA Composite outside temperature
Benefit
Description
Setting
Effect
Note
The heating curve
Note
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The flow temperature setpoint determined in this way serves as a setpoint request for
generating the boiler temperature setpoint. Also refer to "generation of boiler
temperature setpoint" in Index.
Flow temperature
setpoint
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Display of actual values
1.20 Actual value of room temperature (TRx)
Display Unit
0..0.50°C °C
The temperature measured with the room unit will automatically be displayed on this
line.
– – – No valid room sensor connected
1.21 Actual value of outside temperature (TAx)
Display Unit
- 50.0 ... + 50.0 °C
The temperature measured with the outside sensor will automatically be displayed on
this line.
0.0 °C Sensor with open-circuit or no sensor connected
0.0 °C Sensor with short-circuit
For more detailed information about resetting the attenuated outside temperatureto the
actual room temperature, refer to "attenuated outside temperature" in Index.
Setting
Effect
Special displays
Setting
Effect
Special displays
Note
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Display of burner data
Useful information for service and maintenance staff.
No additional mechanical counters required.
1.22 Burner hours run stage 1 (tBR1)
Auxiliary value for ascertaining the amount of energy consumed.
Display Unit
0...65535 Hours
The current number of hours run of burner stage 1 or of a BMU will automatically be
displayed on this line.
1.22.1 Counting the hours run
The hours run of burner stage 1 are counted based on the signal received from output
K4. The voltage of the output signal is AC 230 V.
Each time 2 full operating hours are registered, the new value will be written to nonvolatile memory. Only full hours are displayed, and no minutes.
This means that if the display is checked again after a short period of time, it may still
show the previous reading, if the burner has not yetcompleted another 2 operating
hours.
When using a BMU, the value transmitted will be displayed via PPS.
1.22.2 Average burner running time
Together with the display of the number of burner starts ( line 37), it is possible to
ascertain the average burner running time.
This information makes it possible to determine if:
− the plant is correctlysized
− the burner has become dirty
Benefit
Description
Setting
Effect
With multi-stage burner
Note
With BMU
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1.23 Burner hours run stage 2 (tBR2)
Auxiliary value for ascertaining the average load on the boiler.
Display Unit
0...65535 Hours
The actual number of hours run of burner stage 2 will automaticallybe displayed on this
line.
1.23.1 Counting the hours run
The hours run of burner stage 2 are counted with the signal received from output K5.
Counting takes place independent of whether manual reset safety limit thermostats or
thermal reset limit thermostats switch off the safety loop. It should therefore be ensured
that such thermostats do not affect burner operation. If thisis not observed, too many
hours will be counted.
Each time 2 full operating hours are registered, the new value will be written to nonvolatile memory. Only full hours are displayed, and no minutes.
This means that if the display is checked again after a short period of time, it may still
show the previous reading, if the second burner stage has not yet completed another 2
operating hours.
1.24 Number of burner starts stage 1
Auxiliary value for ascertaining the average burner running time.
Display Unit
0...65535 Number
The number of starts of burner stage 1 will automatically be displayed on this line.
The hours run of burner stage 1 are counted based on the signal received from output
K4. The voltage of the output signal is AC 230 V. Display of the number of burner starts
is updated each time the burner is started up.
The number of burner starts is written to non-volatile memory at 2-hour inter vals or
whenever there is a power failure.
Description
Setting
Effect
Note
Description
Setting
Effect
Counting
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1.25 Number of burner starts stage 2
Auxiliary value for ascertaining the average burner running time.
Display Unit
0...65535 Number
The number of starts of burner stage 2 will automatically be displayed on this line.
The number of starts of burner stage 2 are counted with the signal received from output
K5. Display of the number of burner starts is updated each time the burner is started
up.
The number of burner starts is written to non-volatile memory at 2-hour inter vals or
whenever there is a power failure.
Description
Setting
Effect
Counting
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Maintenance
1.26 Standard times
Straightforward resetting of all time switch programs to their standard values.
The standard time program resets the time settings of all time switch programs.For this
purpose, the controller is supplied with non-volatile factory settings.
Setting
The standard time program is activated as soon as the displaychanges to 1.
Display Unit
0/1 -
In that case, the individual settings will be lost!
The time settings will be overwritten with the standard values. This applies to the
following settings:
• Only the switching times of time switch program 1 or 2
preselected with the heating circuit selection button will be
overwritten.
...
• The switching times of time switch program 3 (d.h.w.) will be
overwritten.
...
Switching point Setting line Standard time
Period1ON 6 - 20 06:00
Period 1 OFF 7 - 21 22 : 00
Period2ON 8 - 22 ––:––
Period2OFF 9 - 23 ––:––
Period3ON 10 - 24 ––:––
Period3OFF 11 - 25 ––:––
Time switch program
1or2 - 3
Benefit
Description
Caution
Effect
standard values
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Holidays
Automatic operating mode changeover during the holiday period.
The holiday function includes 3 settings. There are 8 holiday periods per year available
for which, if used, the start and end dates must be entered.
First, the required holiday period must be selected for which the 2 dates are to be
entered.
The holiday period can be cleared by pressing si multaneously on the + and – buttons
for 3 seconds on the operating line for start or end of the holiday period. Then, the
display will show - -.- -.
The holiday program is only active in automatic mode
.
The dates entered apply as follows:
Activation 00:00 hrs of the first day of the holiday period
Deactivation 24:00 hrs of the last day of the holiday period
When selecting operating mode or , the holiday function no longer acts on
space heating and d.h.w. heating. But the holiday function remains activated in the
background. This means that if automatic mode
is selected again, the holiday
function will be resumed.
The d.h.w. mode can be changed while the holiday function is active.
When the holiday period is activated,
flashes. The d.h.w. operating mode button
flashes depending on the setting made on line 123 and when d.h.w. mode is ac tivated.
The dates of the holiday period will be cleared as s oon as the holiday period is over.
During the selected holiday periods, the heating circuits will be switched off or a change
to the frost protection setpoint is made.
D.h.w. heating is always switched in accordance with its assignment to the heating
circuits (also refer to “d.h.w. assignment” in Index). This means that d.h.w. heating is
also switched to holiday mode as soon as all assigned heating circuits are in holiday
mode.
Effect with room unit:
The holiday function of the room unit is taken into consideration but the entries made
on the controller have priority.
1.27 Holiday period
Display Unit
1...8 -
1.28 Beginning and end of holiday period
Display Unit
01.01...31.12 Day.Month
Benefit
Description
Setting
Reset
Important
Manual deactivation
Display
Note
Effect
D.h.w.
Room unit
Setting
Setting
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1.29 Indication of BMU error code
Straightforward checking of plant.
Fault tracing is made easier.
The controller can register and store a fault message with the error code. The faults are
indicated on this operating line.
Display Unit
0...255 Error code
The fault entry will automatically be displayed on this operating line.
Fault messages cannot be acknowledged. They disappear only if the appropriate fault
has been rectified.
The display shows the error code. If there is nofault message, or if no BMU is
connected, there will be no display.
The meaning of the different error codes depends of the make of BMU used. For this
reason, no overview of all the different error codes can be given here. For details,
please refer to the technical documentation of the relevant product.
2374Z20
The BMU displays error code 175.
If there is a BMU error code, operating line 50 also displays a general BMU fault (error
code 150).
Benefit
Description
Setting
Effect
Note
Display
Example
Note
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1.30 Indication of faults
Straightforward checking of plant.
Fault tracing is made easier.
The controller indicates faults that may have occurred in the controller itself or in the
system.
In normal operation, the display shows "Er" if a fault has oc curred
Display Unit
0...255 -
The first entry in the fault list will automatically be displayed on this line.
By pressing
, it is possible to switch between fault messages.
The controller can store a maximum of 2 fault messages. The faults message will be
cleared only after the cause of the fault has been removed. If additional faults are
present, they will be stored as soon as storage capacity becomes available.
Faults that can occur on the controller:
Display Description of fault
Blank No fault
10 Outside sensor
20 Boiler sensor
28 Flue gas temperature sensor
30 Flow temperature sensor 1
32 Flow temperature sensor 2
50 D.h.w. temperature sensor connected to B3
52 D.h.w. temperature sensor connected to B31
58 D.h.w. thermostat
61 Fault room unit (A6)
62 Wrong room unit (A6)
66 Fault room unit 2 (A7)
67 Wrong room unit 2 (A7)
80 No LPB communication
81 Short-circuit LPB
82 Address collision on LPB (same address several times)
86 Short-circuit PPS (A6)
87 Short-circuit PPS (A7)
100 2 clock masters present
140 Inadmissible LPB device or segment number
146 Inadmissible plant configuration
150 General BMU fault
162 Fault contact H2
Benefit
Description
Setting
Effect
Note
Fault messages
Device faults
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Other devices that may develop faults and whose faults are communicated:
Display Description of fault
20 00.01 Fault with address of the faulty device
The first 2 digits give the error code (20).
The next 2 digits indicate the segment address of the faulty device (00.).
The last 2 digits indicate the device address of the faulty device (.01).
Example of a display after a fault has occurred:
2374Z13
Faulty devices
Display
“ER“ indicates that a fault has occurred.
Press to indicate the faults.
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2 Description of heating engineer
settings
Service values
2.1 Output test
Connections can be checked prior to commissioning.
Faults can be pinpointed faster.
Also termed relay test, which is used to check the wiring and the configuration.
Setting range Unit Factory setting
0...10 Increment 0
The output test will automatically become available on this line.
With each test step, the respective output will be activated so that it can be checked.
The test sequence is arranged in the form of a ring counter. This means it can be run
through either forward or backward by pressing the + / - buttons.
For more information, refer to "commissioning" in Index.
Test step 0 All outputs are switched according to normal control operation
Test step 1 All outputs are deactivated
Test step 2 Burner stage 1 (K4) is activated
Test step 3 Burner stages 1 and 2 (K4 + K5) are activated
Test step 4 D.h.w. charging pump / divertingvalve (Q3/ Y3) is activated
Test step 5 Mixing heatingcircuit / boiler pump (Q2) is activated
Test step 6 Mixingvalve HC1OPEN (Y1) isactivated
Test step 7 Mixing valve HC1 CLOSED (Y2) is activated
Test step 8 Heating circuit pump HC2 (Q6) is activated
Test step 9 Mixingvalve HC2OPEN (Y5) isactivated
Test step 10 Mixing valve HC2 CLOSED (Y6) is activated
Benefit
Description
Setting
Effect
Test sequence
Note
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2.2 Input test
Commissioning is facilitated.
Faults can be pinpointed faster.
Also termed sensor test, which is used to check the wiring and the configuration.
Setting range Unit Factory setting
0...9 Increment 0
The input test will automatically become available on this line.
With each test step, the respective input will be displayed so that it can be checked.
The test sequence is arranged in the form of a ring counter. This means it can be run
through either forward or backward by pressing the + / - buttons.
For more information, refer to "commissioning" in Index.
Test step 0 Display of boiler temperature acquired with sensor B2
Test step 1 Display of d.h.w. temperature acquired with sensor B3
Test step 2 Display of input B31/H2 according to the function selected on line 174 [°C or ooo or ---].
Test step 3 Display offlow temperature HC1 acquired with detector B1
Test step 4 Display offlow temperature HC2 acquired with sensor B12
Test step 5 Display of outside temperature acquired with sensorB9
Test step 6 Display of room temperature acquired withroom unit connected to A6
Test step 7 Display of room temperature acquired withroom unit connected to A7
Testschritt 8 Display of the flue gas temperature acquired with sensor B8
Testschritt 9 Display of input H1 according to the function selectedon line 170 [°C / 000 / - - -].
Benefit
Description
Setting
Effect
Test sequence
Note
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2.3 Display of plant type
Plant structure is easy to understand.
Straightforward checking of configuration.
Displays the plant type used.
Display Unit
0...127 -
The number of the current plant type will automatically be displayed on this operating
line.
Display:
0 Invalid plant configurations
1...127 Valid plant configurations
(refer to section “Plant types”)
Based on the connected peripheral devices and parameter settings, the controller
ascertains the current plant type.
The plant type is displayed in the form of a number which corresponds to the plant
diagram.
Refer to section "Application examples" for the various types of plant with the required
peripheral devices.
The following factors have an impact on the generation of the type of plant:
− Connection of a d.h.w. sensor to B31 / H2:
− Connecting a d.h.w. sensor or thermostat to B3
− Setting operating line “d.h.w. controlling element” (line 128)
− Input signal at B1/B12
− Setting operating line “Heating curve slope HK2” (line 30) - or value between 2.5 and
40)
− Setting the type of heat source (line 80)
Benefit
Description
Setting
Effect
Plant type
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Actual values
Display of the actual temperatures acquired with the sensors.
Each sensor acquires 2 sensor values. The physical sensor value is the value
measured at the controller’s terminals. The logic sensor value is the value finally
selected from the various sensor sources (physically or via communication) based on
certain criteria. Under certain circumstances, the source of the logic sensor value
cannot be immediately identified.
The logic sensor values are displayed on the operating lines of the actual values. The
physical values appear on the operating line of the input test.
The temperature measured will automatically be displayed on this operating line. In
general, no setting can be made with the setting buttons, but in certain cases they can
be used for making a reset.
– – – No valid sensor connected
2.4 Actual value of flow temperature
Temperature acquired with sensor B1/B12 in the flow of the mixing heating circuit is a
criterion for the control of the mixing valve.
Display Unit
0...140 °C
2.5 Actual value of boiler temperature
Temperature acquired with sensor B2 in the boiler or by the BMU.
Display Unit
0...140 °C
2.6 Actual value of common flow temperature
The common flow temperature is the flow temperature delivered by the relevant heat
source. When used as a heat generation controller, it is theflow temperaturefrom the
boiler or from the buffer storage, depending on the type of plant. If the controller is
used in a zone, it is the actual value delivered via LPB.
Display Unit
0...140 °C
Benefit
Sensor value
Effect
Special displays
Description
Setting
Description
Setting
Description
Setting
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2.7 Actual value 1 of d.h.w. temperature
(TBWx)
The higher d.h.w. temperature acquired with the d.h.w. sensor will automatically be
displayed on this line.
Display Unit
0...140 °C
If only one d.h.w. temperature sensor is connected, lines 61 and 62 willshow the same
value.
2.8 Actual value 2 of d.h.w. temperature
The lower d.h.w. temperature acquired with the d.h.w. temperature sensor will
automatically be displayed on this line.
Display Unit
0...140 °C
If only one d.h.w. sensor is connected, lines 61 and 62 will show the same value
For information about d.h.w. heating with 2 temperature sensors, refer to section "Input
B31/H2"
2.9 Display of maximum flue gas temperature
(TGxmax)
This display shows the highest flue gas temperature acquired since the las t reset.
Display Unit
0...350 °C
Using the + / - buttons, the display can be reset to the current value. For that purpose,
both buttons must be pressed together for 3 seconds. The value is reset as soon as the
display stops flashing.
In the event of an open-circuit or short-circuit of the sensor, the display maintains the
maximum temperature value last measured. This value can be reset after rectification
of the fault.
Description
Setting
Note
Description
Setting
Note
Description
Setting
Note
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2.10 Attenuated outside temperature(TAxged)
Also refer to "composite outside temperature" in Index.
Display Unit
-50...+50 °C
2.11 Composite outside temperature (Taxgem)
Also refer to "attenuated outside temperature" in Index.
Display Unit
-50...+50 °C
Description
Setting
Description
Setting
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2.12 Outside temperature source
Display and location of actual outside temperature measurement.
When interconnecting several controllers, only one outside sensor is required. It can be
connected to any of the controllers to deliver its signal via the bus system.
The controllers to which no sensor is connected adopt the outside temperature signal
via the bus system, from a controller to which a sensor is connected.
Display Unit
––.––
00.01...14.16
No signal
Segment and device address
The address of the outside sensor that currently delivers the outside temperature signal
will automatically be displayed on this line.
– – . – – No outside sensor signal
01.02 Address of outside sensor
The first 2 digits represent the segment number (01.)
The second 2 digits represent the device number (.02)
Benefit
Description
Setting
Effect
Display
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Setpoints
2.13 Display of boiler temperature setpoint
Indication of boiler temperature setpoint.
Better overview of the plant’s operating state.
The current boiler temperature setpoint will automatically be displayed on this line.
Display Unit
0...140 °C
The setpoint can only be displayed, but not changed. The function helps better
understand the control sequences taking place in the controller.
No setpoint is displayed (---) when there is no heat demand from the consumers.
2.14 Display of common flow temperature
setpoint
Display of common flow temperature setpoint.
Better overview of the plant’s operating state.
The current common flow temperature setpoint will automatically be displayed on this
line.
Display Unit
0...140 °C
The setpoint can only be displayed, but not changed. The function helps better
understand the control sequences taking place in the controller.
No setpoint is displayed (---) when there is no heat demand from the consumers.
Benefits
Description
Setting
Benefits
Description
Setting
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2.15 Display of d.h.w temperature setpoint
Indication of d.h.w. temperature setpoint.
Better overview of the plant’s operating state.
The current d.h.w. temperature setpoint will automatically be displayed on this line.
Display Unit
0...140 °C
The setpoint can only be displayed, but not changed.
The value displayed depends on the following parameters:
− Current time of day (operating line 1)
− Time switch program d.h.w. heating (operating lines 19...35)
− Nominal setpoint of d.h.w. temperature
(operating line 26)
− Reduced setpoint of d.h.w. temperature
(operating line 120)
− Release of d.h.w. heating
(operating line 121)
− Assignment of d.h.w.
(operating line 123)
− Number of d.h.w. heating cycles per day (operating line 124)
−
Legionella function ON / OFF (operating line 52
OEM
)
− Legionella setpoint (operating line 53
OEM
)
No value (---) is displayed in the following situations:
− No d.h.w. heating available
− D.h.w. heating is switched off (button for d.h.w. heating OFF or holidays)
Benefits
Description
Setting
Generation of setpoint
Note
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2.16 Display of nominal room temperature
setpoint
Information about the nominal room temperature setpoint.
Displays the current nominal room temperature setpoint. The nominal room
temperature setpoint is the temperature adjusted on the controller that is aimed for in
the rooms in normal operation.
Display Unit
0.0...35.0 °C
The nominal room temperature setpoint will automatically be displayed on this line.
The resulting nominal room temperature setpoint is made up of the adjusted setpoint
and a readjustment that may have been made on the room unit:
Also refer to "nominal room temperature setpoint" in Index.
Benefit
Description
Setting
Effect
Nominal room
temperature setpoint
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2.17 Display of room temperature setpoint
(TRw)
Information about the room temperature setpoint in the various operating modes.
Displays the current room temperature setpoint during the respective heating period
(normal operation / reduced operation).
Display Unit
0...35 °C
When selecting the operating line, the current room temperature setpoint is displayed,
depending on the operating mode and the time switch program, that is, a selection /
combination of the following parameters:
• Room temperature setpoint knob
• Reduced setpoint of room temperature (operating line 27)
• Frost protection setpoint of room temperature (operating line 28)
• Readjustments made on the room unit (QAA50 / QAA 70)
If there is no heating circuit, the display shows “---“.
Benefit
Description
Setting
Note
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2.18 Display of flow temperature setpoint (TVw)
Displays the current flow temperature setpoint of the heating circuit.
When selecting this operating line, the current flow temperature setpoint of the
controller’s internal heating circuit is displayed.
Display Unit
0...140 °C
The value displayed corresponds to the flow temperature of the heating circuit that is
required for satisfying the demand for heat.
The display shows “---“ in the following situations:
− No heating circuit available
− ECO function active (summer / winter changeover, automatic 24-hour heating limit)
− Quick setback active
− Room temperature limitation active
Benefit
Description
Setting
Note
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2.19 Floor curing data
Information about the current state of floor curing.
The floor curing function has a fixed profile according to whic h the rooms are heated to
allow curing. The current values of the floor curing function are displayedhere. The
function itself is activated under setting 116.
Display Unit
-- -- (Inactive)
0...32 0...95 Day TVw
2374Z17
Benefit
Description
Setting
Example
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Heat generating equipment
2.20 Type of heat source
This controller supports different types of heat sourc es. The type of burner used is to be
considered when planning the heating plant.
Setting range Unit Factory setting
0...2 Increment 1
Entry:
0 No heat source (zone controller) or BMU
1 1-stage: The heat source is equipped with a 1-stage burner
2 2-stage: The heat source is equipped with a 2-stage burner
2.20.1 No heat generation or BMU
If the controller is used in combination with a BMU, only a certain part of the heat
source functions are active, such as: protective boiler start-up. In that case, boiler
temperature control by the burner must be f ully ensured by the BMU.
If no BMU is connected, heat source functions are no longer ac tive.
2.20.2 Multi-stage burners
Boiler temperature control
Generation of the boiler temperature setpoint is accomplished based on maximum
selection. Also refer to "generation of boiler temperature setpoint" in Index.
With multi-stage burners, the basic load is covered by cycling the first stage. For that
purpose, the boiler’s switching differential can be adjusted.
The second stage is activated and deactivated via the release and reset integral, whic h
is used until full load is reached.
For burner control, minimum limitation of the burner running time is considered to
ensure no unnecessary cycling takes place in part load operation.
Description
Setting
Effect
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2.21 Minimum limitation of boiler temperature
(TKmin)
Prevents the boiler temperature from falling below a certain level.
Minimum limitation of the boiler temperature setpoint is a protective function for the
boiler. In addition, minimum limitation of the setting range can be provided with setting
01
OEM
.
Setting range Unit Factory setting
TKmin
OEM...TKmax
°C 40
TKmin OEM Minimum limitation of boiler temperaturesetpoint (setting on line 01
OEM
)
Tkmax Maximum limitationof boiler temperature setpoint (setting on line02
OEM
)
The setting ensures that the boiler temperature will not fall below the adjusted minimum
level.
0102030405060708090100120
TV
max
min
akt
°C
2373Z16
56 Actual value of boiler temperature
81 Minimum limitation of boiler temperaturesetpoint
2
OEM
Maximum limitation of boiler temperaturesetpoint
1
OEM
Lowest minimum limitation of boilertemperature setpoint
If the boiler temperature setpoint reaches the limit value and the demand for heat
continues to drop, the boiler temperature will be maintained at the adjusted minimum
level.
20 10 0 -10 -20
40
30
60
50
80
70
TK
TK
TK
TK
SDK
2371Z26
TA
°C
°C
w
min
max
gem
0
Legend
TK boiler temperature
TKw Boiler temperature setpoint
Tkmin Minimum limitation of boiler
temperature
SDK Switching differential
TAgem composite outside
temperature
Benefit
Description
Setting
Effect
Limitation
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2.22 Extra heating for the bathroom
Heating the bathroom by making use of the surplus heat obtained after d.h.w. heating.
This ancillary heating is provided in addition to normal bathroom heating. It is used
especially during intermediate seasons by supplying surplus heat to the bathroom on
completion of d.h.w. heating.
Setting range Unit Factory setting
0 / 1 Increment 0
The setting ensures that both the d.h.w. charging pump and heating circuit pump 2 will
overrun.
Entry:
0 OFF: D.h.w. pump overrun acts exclusively on the d.h.w. charging pump (Q3)
1 ON: D.h.w. pump overrun ac ts on both the d.h.w. charging pump (Q3) and
heating circuit pump 2 (Q6)
2.22.1 Extra heating for the bathroom
Extra heating for the bathroom makes use of the d.h.w. pump overrun. It is used
especially during intermediate seasons by supplying surplus heat to the bathroom, in
addition to normal bathroom heating.
Surplus boiler heat after a d.h.w. heating cycle is supplied to the pump heating circuit
via overrun of heating circuit pump 2. The pump overrun is fixed at 30 minutes.
This function is an uncontrolled fixed process, parallel to the actual operation of the
pump heating circuit.
When automatic summer / winter changeover of the pump heating circuit has
responded, extra heating for the bathroom will also be s witched off.
Benefit
Description
Setting
Effect
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Heating circuit
2.23 Parallel displacement of heating curve
Readjustment of room temperature setting, especially in plants without room sensor.
Produces a parallel displacement of the heating curve in order to achieve a better
match of heat generation and heat consumption.
Setting range Unit Factory setting
-4.5...+4.5 °C (K) 0.0
By changing the value entered, all room temperature setpoints will be appropriately
raised or lowered. This allows the room temperature setpoints to be matched to the
effective room temperatures.
If a nominal room temperature setpoint of 20 °C adjusted on the controller always
produces a room temperature of 22 °C, displace the heating curve downward by2 °C.
Each setpoint readjustment, be it via the setting value or the operational level, is a
parallel displacement of the heating curve.
20 10 0 -10 -20
-30
90
80
70
60
50
40
30
°C
°C
2406D02
100
0
10
10
0
30
T
R
w
TA
TV
TV Flow temperature
TA Composite outside temperature
TRw Room temperature setpoint
Benefit
Description
Setting
Effect
Example
Parallel displacement
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2.24 Room influence
More accurate room temperature control due to temperature checkback signal from the
space.
Use of heat gains.
Possibility of boost heating and quick setback.
Defines the impact of room temperature deviations on the controlled system.
Room temperature deviation is the temperature differential between the ac tual room
temperature and the room temperature setpoint.
Setting range Unit Factory setting
0 / 1 Increment 1
The setting will activate or deactivate the effect of room temperature deviations on the
temperature control.
Entry:
0: Room influence inactive: The measured room temperature will not affect
temperature control
1: Room influence active: The measured room temperature will affect the
temperature control
Room influence means:
Deviations of the actual room temperature from the se tpoint are acquired and taken into
account by temperature control.
To use the control variant "Weather compensation with room influence", the following
conditions must be satisfied:
• Outside sensor must be connected
• Setting "Room influence" must be active.
• Respective room unit must be connected
• There may be no controlled thermostatic radiator valves in the reference room.
(If such valves are present, they must be set to their fully open position).
Benefit
Description
Setting
Effect
Room influence
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2.25 Switching differential of room temperature
(SDR)
Temperature control with pump heating circuits.
Prevents overtemperatures in the rooms in the case of a pump heating circuit.
Serves as a room temperature limitation with pump heating circuits
Setting range Unit Factory setting
– . – / 0.5...4.0 °C – . –
The switching differential for two-position control will be changed.
Entry:
– . – Switching differential is inactive
• The pump always remains activated
Decrease: Switching differential will become smaller
• Pumps are switched on and off more often
• Room temperature varies within a narrower band
Increase: Switching differential will becomegreater
• Pumps are switched on and off less often
• Room temperature varies within a wider band
The room temperature sensor must be active
• This function only acts in automatic mode
• The display will show "ECO“
With pump heating circuits, the amount of heat supplied is controlled by switching the
pumps on and off. This is accomplished with 2-position control by means of the room
temperature's switching differential.
Functioning:
OFF
ON
P
°C
TRx
TRw+SDR
2371D02
TRw
t
Legend
TRx Actual value of the room
temperature
TRw Room temperature setpoint
SDR Switching differential of
room temperature
PPump
ON Switch-on point
OFF Switch-off point
tTime
Pump ON TRw
Pump OFF TRw=TRw + SDR
°C
2373Z14
ON
OFF
w
TRx Actual value of room
temperature
TRw Room temperature setpoint
SDR Switching differential of
room temperature
wSetpoint
102 Switching differential of
room temperature
Switch-on point
Switch-off point
Benefits
Description
Setting
Effect
Note
Room temperature
control
Switching differential
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2.26 Operating mode of room unit
The setting offers the possibility of assigning the action of the room unit operating
modes and the holiday function to one of the heating circuits.
Assignment of the transmitted room unit values to one of the two heating circuits:
Operating modes are:
• Automatic mode, continuous operation, or stand-by
• Holiday function
Room unit values can be assigned in the same way, using setting line 104.
Setting range Unit Factory setting
0...2 - 0
The operating mode and holiday function of the room unit affect the selec ted heating
circuits, depending on the settings made.
Entry:
0 Room unit 1 (A6)
Room unit 2 (A7)
acting on heating circuit 1
acting on heating circuit 2
Changing the operating mode or activating the holiday function on the room unit
affects exclusively the respective heating circuit (parallel).
1 Room unit 1 (A6)
Room unit 2 (A7)
acting on heating circuit 2
acting on heating circuit 1
Changing the operating mode or activating the holiday function on the room unit
affects exclusively the other heating circuit (crossed).
2 Room unit 1 (A6)
Room unit 2 (A7)
acting on heating circuits 1 and 2
with no action
Changing the operating mode or activating the holiday function on room unit 1
affects heating circuits 1 and 2.
To ensure the room unit operating modes have an effect on the control, the controller
must be set to automatic mode. Otherwise, the settings made on the room unit will be
inactive.
As soon as the operating mode on the room unit is changed, the controller's automatic
button will flash.
Benefit
Description
Note
Setting
Effect
Prerequisite
Display
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2.27 Room unit values
This setting offers the possibility of assigning the action of the room unit values to one
of the heating circuits.
Assignment of the transmitted room unit values to one of the two heating circuits:
Heating circuit values are:
− Actual value
− Actual value of the room temperature
Room unit operating modes can be assigned in the same way, using s etting line 103.
Setting range Unit Factory setting
0...2 - 0
The room unit values affect the selected heating circuits, depending on the setting
made.
Entry:
0 Room unit 1 (A6)
Room unit 2 (A7)
acting on heating circuit 1
acting on heating circuit 2
The room unit values affect exclusively the respective heating circuit (parallel).
1 Room unit 1 (A6)
Room unit 2 (A7)
acting on heating circuit 2
acting on heating circuit 1
The room unit values affect exclusively the other heating circuit (crossed).
2 Room unit 1 (A6)
Room unit 2 (A7)
acting on heating circuits 1 and 2
with no action
The values of room unit 1 affect heating circuits 1 and 2.
It should be considered that the room in which the room unit is installed also is the
reference room for the room temperature influence.
Benefit
Description
Note
Setting
Effect
Reference room
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2.27.1 Examples of room unit assignments
In the case of plants with two heating circuits and one room unit, it may be advisable to
choose a separate assignment of the room unit functions. The listing below shows
some typical applications with the respective settings of the room unit operating mode
(line 103) and the room unit values (line 104).
The heating circuits are in separate, independent flats or apartments. This represents
the "normal application ".
Plant types Location of heating circuits Line 103 Line 104
21/22/23/24
Not in the same space
00
The heating circuits are located in partly separate spaces or flats.
Plant types Location of heating circuits Line 103 Line 104
21/22/23/24
Not in the same space
20
• The heating circuits are always separate.
Plant types Location of heating circuits Line 103 Line 104
21/22/23/24
Not in the same space
00
• Simultaneous change of the operating mode is possible, however.
Plant types Location of heating circuits Line 103 Line 104
21/22/23/24
Not in the same space
20
The heating circuits are located in the same space. Comfort control is provided by the
faster-reacting radiators. This means that the room unit values shall onlyact on heating
circuit 2.
Plant types Location of heating circuits Line 103 Line 104
21/22/23/24 In the same space 2 1
Introduction
Separate flat
Bathroom heating
Staircase heating
Underfloor or radiator
heating system
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2.28 Minimum limitation of flow temperature
setpoint (TVmin)
Prevents too low flow temperatures.
Minimum and maximum limitation define the range within which the flow temperature
setpoint may vary.
Setting range Unit Factory setting
8...TVmax °C 8
TVmax Maximum limitation of flow temperature setpoint (setting on line 107)
The setting will make certain that the flow temperature setpoint will not fall below a
minimum level.
0102030405060708090100
TV
max
min
akt
°C
2373Z15
TVw
TVw Current flow temperature setpoint
65 Minimum limitation of flow temperaturesetpoint
70 Maximum limitation of flow temperature setpoint
If the flow temperature setpoint demanded by the heating circuit reaches the minimum
limit and the outside temperature rises, the flow temperature setpoint will be maintained
at that limit, in other words, it will not be allowed to fall below it.
Benefit
Description
Setting
Effect
Limitation
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2.29 Maximum limitation of flow temperature
setpoint (TVmax)
Prevents too high flow temperatures.
Minimum and maximum limitation define the range within which the flow temperature
setpoint may vary.
Setting range Unit Factory setting
TVmin...95 °C 80
Tvmin Minimum limitationof flow temperature setpoint (setting on line105)
The setting will ensure that the flow temperature setpoint will not exceed a maximum
level.
Maximum limitation is not to be regarded as a safety function as required with
underfloor heating systems, for example.
0102030405060708090100
TV
max
min
akt
°C
2373Z15
TVw
TVw Current flow temperature setpoint
105 Minimum limitation of flow temperature setpoint
107 Maximum limitation of flow temperature setpoint
If the flow temperature setpoint demanded by the heating circuit reaches the maximum
limit and the outside temperature falls, the flow temperature setpoint will be maintained
at that limit, in other words, it will not be allowed to exceed it.
Benefit
Description
Setting
Effect
Important
Limitation
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2.30 Maximum f orward shift of optimum start
control
Maximum forward shift of optimum start control.
Maximum forward shift is a limit function that defines the range of optimum start control.
Setting range Unit Factory setting
00:00...06:00 hh:mm 00:00
00:00 Optimum start control switched off
00:10...06:00Optimum start control switched on
2.30.1 Optimum start control
Optimum start control acts with or without room influence.
The maximum forward shift can be set with parameter “Maximum forward shift with
optimum start control” (range 0…6 h). This parameter can als o be us ed to switch
optimum start control off (setting 0).
During non-occupancy hours, the heating is maintained at the reduced level. Towards
the end of the non-occupancy time, optimization switches the control back to the
normal level.
Optimization calculates the changeover time such that, at the start of occupancy, the
room temperature will have reached the nominal setpoint.
Benefit
Description
Setting
Effect
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2.30.2 Without room influence
The composite outside temperature is used as the compensating variable. In the case
of floor heating systems, the maximum forward shift should be longer than with radiator
systems.
Using the parameter for the constant of quick setback and optimum start control (KON),
the forward shift can be matched the building dynamics.
Forward shift tE in hours and minutes with optimumstart control without room
influence:
TAgem KON
048121620
- 20 0 1h20 2h40 4h00 5h20 6h00
- 10 0 0h50 1h50 2h40 3h40 4h30
0 0 0h30 1h00 1h30 2h00 2h30
+ 10 0 0 0h10 0h10 0h20 0h20
tE
TAgem Composite outside temperature
tE Forward shift
KON Parameter for quick setback and optimum start control withoutroom influence
KON = 0: function deactivated
note: KON also acts on quick setback
Small KON: for high building structures can be heated up fairly quickly
Large KON: for heavy, well insulated building structures whose heating
up time is fairly long
2.30.3 With room influence
Optimum start control acts only when room influence is active.
The switch-on time for the heating (change to nominal level) is selected such that, at
the beginning of the occupancy time according to the heating program, the room
temperature reached will be the room temperature setpoint - 0.25 K.
The correct switch-on time is determined by adaption.
Parameter KON:
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2.31 Maximum forward shift of optimum stop
control
Maximum forward shift of optimum stop control.
Maximum forward shift is a limit function that defines the range of optimum stop control.
Setting range Unit Factory setting
00:00...06:00 hh:mm 00:00
00:00 Optimum stop control deactivated
00:10...06:00Optimum stop control activated
2.31.1 Optimum stop control
Optimum stop control acts only when a room sensor is used and when room influence
is active.
The maximum forward shift can be set with parameter “Maximum forward shift with
optimum stop control” (range is 0…6 h). This parameter can also be used to switch
optimum stop control off (setting = 0).
During occupancy hours, the heating is maintained at the nominal level. Towards the
end of the occupancy time, the control switches to the reducedlevel.
Optimization calculates the changeover time such that, at the end of occupancy time,
the room temperature will be 0.5 °C below the nominal setpoint (early shut-down).
Adaption takes place only with the first occupancy period per day. The switch-off point
is adapted in steps of 10 minutes. If the 0.25 K are not reached, the switch-off point is
shifted forward by 10 minutes (earlier shut-down). In the other case, the switch-off point
is shifted backward by 10 minutes (later shut-down).
Benefit
Description
Setting
Effect
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2.32 Type of building construction
The building's thermal dynamics are taken into consideration.
The type of building construction affects the control. By considering the type of
construction, a disturbance variable (z) within the controlled system is taken into
account.
Setting range Unit Factory setting
0 / 1 Increment 1
When the outside temperature varies, the room temperature changes at different rates,
depending on the building's thermal storage capacity.
The above setting ensures that the generation of the composite outside temperature
will be matched to the type of building construction. Also refer to "Composite outside
temperature“ in section "Functions without settings".
Entry:
0: Heavy building structures: The room temperature will respond slower to outside
temperature variations
1: Light building structures: The room temperature will respond quicker to outside
temperature variations
Heavy building structures:
Buildings with thick walls or with external insulation
Light building structures:
Buildings with a light envelope
Benefit
Description
Setting
Effect
Building construction
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2.33 Adaption of heating curve
No heating curve adjustments required.
Automatic adaption of heating curve.
The adaption facility learns from the different heating situations and matches the control
to the heating circuit at regular. For details, refer to “adaptation sensitivities” in Index.
Setting range Unit Factory setting
0 / 1 Increment 1
The setting will switch automatic adaption of the heating curve on or off.
Entry:
0 Automatic adaption inactive: The heating curve maintains the settings made
1 Automatic adaption active: In automatic mode (nominal room temperature
setpoint
), the heating curve will automatically and continuously be adapted
Prerequisite for this function is the use of a room temperature sensor.
2.33.1 Adaption
The adaption facility automatically matches the heating curve to the type of building
construction and the heating requirements. Adaption gives consideration to room
temperature deviations, outside temperature characteristics and adaption sensitivity.
To achieve optimum adaption, the following situations should occur as rarely as
possible - especially after commissioning - since this would reset certain calculations
required for the adaption:
− Manual readjustment of heating curve (press plus / minus buttons)
− Power failure
− Heating curve set to -- –
− Changes to the room temperature setpoint
Every day at midnight, the room temperature control differential of the previous day is
evaluated. This evaluation leads to an automatic readjustment of the heating curve.
• Simple adaption (range
):
At attenuated outside temperatures below 4 °C, it is only the sl ope of the heating
curve that is adapted.
In this temperature range, the readjustment is weighted with factor f2 and adaption
sensitivity 2.
• Combined adaption (range
):
At attenuated outside temperatures of between 4 and 12 °C, it is partly the slope and
partly the parallel displacement which are adapted.
In this temperature range, the readjustment of the parallel displacement is weighed
with factor f1 and adaption sensitivity 1.
In this temperature range, the readjustment of the slope is weighted withfactor f2 and
adaption sensitivity 1.
Benefits
Description
Setting
Effect
Note
Note
Process
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• No adaption (range ):
At attenuated outside temperatures above 12 °C, the heating c urve will not be
adapted.
Example using a nominal room temperature setpoint of 20 °C.
0
2371D07
TA
12 4 -4 -12
0,5
1
f
20
ged
f
1
f
2
ZAF1 ZAF2
fFactor
f1 Factor for parallel displacement
f2 Factor for slope
TAged Attenuated outside temperature
ZAF1 Adaption sensitivity 1 (line 39
OEM
)
ZAF2 Adaption sensitivity 2 (line 40
OEM
)
Diagram
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2.34 Locking signal gain
Matching the system to different types of boilers and plant conditions.
The locking signal gain is a final adjustment of the locking signal whichleads to a
restriction of the mixing valve. It is the result of a number of integrals such as shifting
d.h.w. priority.
Setting range Unit Factory setting
0...200 % 100
The gain is adjustable between 0 % and 200 %. The setting changes the response of
the mixing heating circuits to restrictions imposed by locking signals, but not that of the
other consumers. Also refer to "mixing valve restriction" in index.
Setting Response
0 % Locking signal will be ignored
1...99 % Locking signal will be considered as a reduced
signal
100 % Locking signal will be adopted unchanged
101...200 % Locking signal will be considered up to twice the
normal signal
Benefit
Description
Setting
Effect
Example
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2.35 Floor curing
The floor curing function ensures controlled drying of the floor.
Observe the relevant standards and regulations of the floor manufacturer!
Proper functioning is ensured only when the plant is correctly installed (hydraulic
system, electricalinstallation, settings)!
If not observed, the floor might get damaged!
The floor curing function maintains the flow temperature at a predefined temperature
profile with the help of the mixing valve.
Setting range Unit Factory setting
0...3 - 0
Selection of a temperature profile activates the floor curing function and the heating
circuit ensures the preset flow temperatures.
0 Inactive
1 Functional heating
2 Floor curing heating
3 Functional and floor curing heating
2.35.1 Temperature profile
The following graph shows the temperature profile of the s elected floor curing function.
50
45
40
35
30
20
5101518
[Tag
]
0
25
55
Fh
Bh
11
57
X
Fh + Bh
1 25
2373Z59
[TVw]
TVw Flow temperature setpoint
x Start day
Fh Functional heating
Bh Floor curing heating
Benefit
Important
Description
Setting
Effect
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2.35.2 Activating the function
If setting 1), 2) or 3) is made via the setting parameter, the respective floor curing
function will be carried out.
The floor curing function can be activated only with applications using a mixing heating
circuit.
With the pump heating circuit application, this function cannot be activated.
2.35.3 Function
When the floor curing function is activated, parameter “Maximum limitation of floor
temperature Tvmax” will automatically be set to 55 °C. This value will then be used as
the maximum value for the floor curing function and will be maintained when the floor
curing function is terminated.
The starting day, that is, the period of time from activation until midnight, is not
considered day 1 of the selected temperature profile. The starting day is called day 0
and adopts the flow temperature value of day 1.
The flow temperature changes dictated by the temperature profile always take place at
midnight.
When the floor curing function is activated, the mixing valve ensures that the flow
temperature dictated by the temperature profile will be maintained. This means that
protective boiler start-up or d.h.w. heating with absolute or shifting priority have no
impact on the floor curing function.
In the event of a power failure, the function will be resumedwhere operation was
stopped.
Manual operation is given priority over the floor curing function. When manual operation
is activated, the mixing valve will be de-energized (relay contacts open). As a result, the
floor curing function does not affect the mixing valve.
2.35.4 Display
When the floor curing function is activated, the LED of the current heating circuit
operating mode flashes.
2.35.5 Aborting the function
The following events cause abortion of the floor curing function:
The selected floor curing function is completed.
Setting parameter “Floor curing function” is set to active.
Temperature profile
Particularities
100/184
Siemens Building Technologies Basic Dokumentation RVA63.280, RVA53.280 CE1P2374E
Landis & Staefa Division 19.04.2001
D.h.w.
2.36 Reduced setpoint of d.h.w. temperature
(TBWR)
High d.h.w. temperature level only if required.
Energy savings due to lower temperatures in the remaining time.
If the d.h.w. is heated by means of a control thermostat connected to terminal B3,
reduced setpoint operation will not be possible.
Reduction of d.h.w. temperatures outside main occupancy times. The time switch
integrated in the controller auotmatically switches between main and secondary
occupancy times. Also refer to "d.h.w. program" in Index.
Setting range Unit Factory setting
8...TBWw °C 40
TBWw Nominal setpoint of the d.h.w. temperature (setting on line 26)
The temperature setpoint during reduced d.h.w. operation will be changed.
0102030405060708090100°C
2373Z13
26 Setting "Nominal setpoint of the d.h.w. temperature”
120 Setting "Reduced setpoint of the d.h.w.temperature”
50
OEM
Setting "Maximumnominalsetpoint ofthe d.h.w. temperature”
D.h.w. heating has 2 different setpoints that can be us ed:
• Nominal setpoint of d.h.w. temperature: It ensures the d.h.w. temperature required
during main occupancy times
• Reduced setpoint of d.h.w. temperature: It ensures the d.h.w. temperature required
during secondary occupancy times
The periods of time during which these d.h.w. temperature setpoints shall be used can
be set in the d.h.w. program.
Benefit
Note
Description
Setting
Effect
D.h.w. temperature
setpoints
Switching times
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