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Siemens Building Technologies Basic Documentation RVD230 CE1P2383en

HVAC Products 28 Function block Miscellaneous 27.05.2004

-10

2383D02

-5

Effect or slope (operating line 190)

Composite outside temperature

Reduced room temperature setpoint

Start of compensation (operating line 189)

Main Page

Default Chapter3
- Table of Contents3
1 Summary13
- Brief Description and Key Features13
- Type Summary13
- Equipment Combinations13
- Suitable Sensors13
- Suitable Room Units14
- Suitable Valve Actuators14
- Communication14
- Documentation14
2 Use15
- Types of Plant15
- Types of Houses and Buildings15
- Types of Heating Systems15
- Heating Circuit Functions15
- Functions16
- Auxiliary Functions16
3 Fundamentals17
- Key Technical Features17
- Function Blocks17
- Plant Types17
- Operating Modes23
- Heating Circuit Control23
- Heating23
- Manual Operation23
4 Acquisition of Measured Values24
- General24
- Flow Temperature (B1, B12)24
- Types of Sensors24
- Handling Faults24
- Outside Temperature (B9)24
- Room Temperature (A6)25
- Types of Sensors25
- Handling Faults25
- Room Model25
- Flow Temperature (B3 and B12)25
- Measuring Variable25
- Handling Faults26
- Storage Tank Temperature (B31)26
- Measuring Variable26
- Types of Sensors26
- Storage Tank or Return Temperature (B32)27
- Measuring Variable27
- Types of Sensors27
- Handling Faults27
- Primary Return Temperature (B7, B71 and B72)27
- Measurement27
- Secondary Return Temperature (B7 and B71)28
- Measurement28
- Types of Sensors28
- Handling Faults28
5 Function Block Space Heating29
- Operating Lines29
- Settings and Displays29
- Heating Program30
6 Function Block Clock Settings31
- Operating Lines31
- Entries31
7 Function Block End-User D.h.w32
- Operating Lines32
- Heating Program32
- Adjustment of Setpoints32
8 Function Block Display of Actual Sensor Values33
- Operating Lines33
- Displays33
9 Function Block Holiday Settings34
- Operating Lines34
- Holiday Program34
10 Function Block Indication of Errors35
- Operating Line35
- Indication of Errors35
11 Function Block Plant Configuration36
- Operating Lines36
- Parameters to be Set36
- Plant Type36
- Input B71 / U136
- Circulating Pump37
- Input H537
- Control of Variable Speed Pump37
12 Function Block Space Heating41
- Operating Lines41
- Compensating Variables41
- Outside Temperature41
- Room Temperature42
- Heating Curve43
- Generation of Setpoint44
- Display of Setpoint44
- Setpoint of Weather-Compensated Control44
- Setpoint of Room-Compensated Control45
- Setpoint of Weather-Compensated Control with Room Influence45
- Heating Circuit Control46
- Weather-Compensated Control46
- Room-Compensated Control46
- Weather-Compensated Control with Room Influence46
- Automatic ECO Function47
- Fundamentals47
- Compensating Variables and Auxiliary Variables47
- Heating Limit48
- Mode of Operation of ECO Function 148
- Mode of Operation of ECO Function 248
- Pump Overrun48
- Maximum Limitation of the Room Temperature48
- Optimization49
- Definition and Purpose49
- Fundamentals49
- Process50
- Room Model Temperature50
- Optimum Stop Control51
- Quick Setback51
- Optimum Start Control51
- Maximum Rate of Flow Temperature Increase52
- Frost Protection for the Building52
- General52
- Mode of Operation with Room Sensor52
- Mode of Operation Without Room Sensor53
- Protective Functions53
- Pump Kick53
- Valve Kick53
- Shutdown of Pump53
13 Precontrol54
- General54
- Heat Demand54
- Control54
- Pump Q154
- Pump and Mixing Valve Overrun54
- Frost Protection55
- Other Functions55
- Room Unit56
14 Function Block Valve Actuator Heat Converter / Primary Controller57
- Operating Lines57
- Mode of Operation57
- Control Process57
- Maximum Limitation of the Flow Temperature57
- Minimum Limitation of the Flow Temperature58
- External Heat Demand at Input H558
- External Heat Demand at Input U158
15 Function Block Valve Actuator Heating Circuit60
- Operating Lines60
- Mode of Operation60
- Control Process60
- Maximum Limitation of the Flow Temperature60
- Minimum Limitation of the Flow Temperature61
16 Function Block D.h.w. Heating62
- Operating Lines62
- Release of D.h.w. Heating62
- Control of the Circulating Pump63
- Switching Differential of D.h.w. Control63
- Legionella Function63
- Priority of D.h.w. Heating63
- General63
- Absolute Priority64
- Shifting Priority64
- No Priority65
- Pump Overrun65
- General65
- Intermediate Circuit Pump65
- Storage Tank Charging Pump65
- Frost Protection for D.h.w66
- Switching D.h.w. Heating off66
17 H.w. Heating67
- Heating with Storage Tanks67
- General67
- Maximum Charging Time67
- Manual Storage Tank Charging67
- Forced Charging67
- Protection against Discharging68
- Heating with Diverting Valve68
- Protection against Overtemperatures68
- Storage Tank with Electric Immersion Heater68
- Heating with Stratification Storage Tank69
- General69
- Heating with One Flow Sensor69
- Heating with 2 Flow Sensors69
- Feeding the Circulating Water into the Heat Exchanger70
- Direct D.h.w. Heating70
- General70
- Heating70
- Protection against Cooling down70
- Siting the Sensors71
- Flow Switch71
- Compensation of Heat Losses through Control72
- Cold Water Sensor73
- Plant Type 8-473
18 Function Block Extra Legionella Functions74
- Operating Lines74
- Legionella Function74
- Setpoint74
- Time74
- Dwelling Time74
- Operation of Circulating Pump75
- Maximum Limitation of the Return Temperature75
- Mode of Operation75
19 Function Block Valve Actuator D.h.w77
- Operating Lines77
- Mode of Operation77
- Control Process77
- Setpoint Boost78
- Charging Boost78
- Flow Temperature Boost78
- Maximum Setpoint of the D.h.w. Temperature78
- Heating with 2 Storage Tank Sensors78
- Adjustable Load Limit79
- Adjustment to the Time of Year79
- Load Limit79
- Child-Proofing79
20 Function Block Assignment of D.h.w. Heating80
- Operating Line80
- Assignment of D.h.w. Heating80
21 Function Block LPB Parameters81
- Operating Lines81
- LPB Parameters81
- Addressing the Devices81
- Source of Time of Day81
- Bus Power Supply82
- Outside Temperature Source82
22 Locking Signals83
- Fundamentals83
- Critical Locking Signals83
- Uncritical Locking Signals84
- General84
- Controller-Internal Uncritical Locking Signals84
- Uncritical Locking Signals from the Data Bus84
23 Function Block Device Functions85
- Operating Lines85
- Actuator Pulse Lock85
- Frost Protection for the Plant85
- Principle85
- Mode of Operation with Outside Sensor85
- Mode of Operation Without Outside Sensor86
- Frost Protection for the Heating Circuit Flow86
- Flow Alarm86
- Heating Circuit and D.h.w. Circuit with Storage Tanks86
- Direct D.h.w. Heating Via Heat Exchanger87
- Winter- / Summertime Changeover88
- Pump Kick88
24 Function Block M-Bus Parameters89
- Operating Lines89
- General89
- Addressing and Identification89
- Baud Rate89
- Load Management89
- Load Management of D.h.w89
- Load Management of the Heating System90
- Resetting the Load Control Signals90
- Use on the LPB90
- Resolution of M-Bus Signals90
25 Function Block PPS Parameters91
- Operating Line91
- Function91
26 Function Block Test and Display92
- Operating Lines92
- Sensor Test92
- Setpoint Test92
- Relay Test93
- Display of Pump Speed93
- Display of Digital Inputs93
- Limitations94
- Software Version94
27 Function Block DRT and Maximum Limitation of the Return Temperature95
- Operating Lines95
- Maximum Limitation of the Primary Return Temperature95
- General95
- Maximum Limitation in Heating Mode96
- Maximum Limitation in D.h.w. Heating Mode97
- Maximum Limitation of the Secondary Return Temperature97
- Maximum Limitation of the Temperature Differential (DRT Function)98
- Mode of Operation98
- Purpose98
- Integral Action Time of the Limitation Functions99
28 Function Block Miscellaneous100
- Operating Lines100
- Limitation Function at Contact H5100
- Suppression of Hydraulic Creep101
- Mode of Operation101
- Raising the Reduced Room Temperature Setpoint101
29 Function Block Operation Locking Functions103
- Operating Lines103
- Locking Settings on the Software Side103
- Locking of Setting Level "Locking Functions" on the Hardware Side103
30 Combination with PPS Devices104
- General104
- Combination with Room Unit QAW50104
- Overriding the Operating Mode104
- Knob for Room Temperature Readjustments105
- Controller with Operation Lock105
- Combination with Room Unit QAW70105
- General105
- Overriding the Operating Mode106
- Knob for Readjusting the Room Temperature106
- Effects of the Individual QAW70 Operating Lines on the RVD230106
- Controller with Operation Lock107
- Entry of Holiday Periods107
- Room Temperature Sensor QAA10107
31 Manual Operation108
32 Handling109
- Operation109
- General109
- Analog Operating Elements110
- Digital Operating Elements110
- Controller in "Nonoperated State111
- Safety Concept111
- Setting Levels and Access Rights111
- Commissioning111
- Installation Instructions111
- Operating Lines112
- Installation112
- Mounting Location112
- Mounting Choices112
- Electrical Installation112
33 Engineering113
- Connection Terminals113
- Relays114
- PWM Output114
- Lightning Protection in M-Bus Plants114
- Connection Diagrams115
- Low-Voltage Side115
- Mains Voltage Side115
34 Mechanical Design116
- Basic Design116
- Dimensions116
35 Technical Data117

Siemens RVD230 - Page 102

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