SYNERGYR® Control and Metering System Operating Manual Edition 4.0 OZW30, AZW30 from V4.0 4 319 2420 0 f CE1U2841E 29.07.
/116 Building Technologies HVAC Products Control and Metering System CE1U2841E 29.07.
Contents 1 About the Operating Manual.................................7 1.1 Some notes on the contents of the Operating Manual .................................................7 1.2 Notes on the central unit's software version .........8 1.3 Compatibility list....................................................9 2 Brief description of the system............................11 2.1 Central unit OZW30............................................11 2.2 Room units QAW10 and QAW20…....................
.4 Operating card 4 – Diagnostics user ..................33 4.5 Operating card 5 – Control heating group ..........39 4.6 Operating card 6 – Startup building ....................47 4.7 Operating card 7 – Startup user .........................56 5 About the devices ...............................................71 5.1 5.1.1 5.1.2 5.1.3 Control and heating cost allocation valve ...........71 Display................................................................71 Manual operation.................
7.2.2 7.2.3 7.2.4 7.2.5 7.3 7.3.1 7.3.2 7.3.3 7.3.4 7.3.5 7.3.6 7.3.7 7.3.8 7.3.9 7.4 7.4.1 7.4.2 Setting the parameters of load compensation .....................................................82 Setting the parameters of the heating group controllers on the LPB ........................................82 Entering the building parameters........................82 Locking the room temperature display................83 Setting up the devices of each apartment ..........83 Addressing the devices ............
7.8.2 Room unit QAW20… ..........................................97 7.9 7.9.1 7.9.2 7.9.3 7.9.4 7.9.5 7.9.6 7.9.7 7.9.8 Service level of QAW20… room unit ..................97 Operating on the service level ............................97 Displaying the communication status .................98 Displaying the device and software version........98 Locking the programming level...........................99 Setting the parameters of the airing function ......99 Setting the parameters of the signal input ......
1 About the Operating Manual 1.1 Some notes on the contents of the Operating Manual The present Operating Manual contains all information required to ensure optimum operation of the SYNERGYR Control & Metering System. Since SYNERGYR is a new type of system, a brief description of the system itself and of the individual system components is given first. This will allow you to become more easily familiar with the array of functions and possibilities offered by the system and to make use of them.
1.2 Notes on the central unit's software version This Operating Manual describes the functions and capabilities of the central unit using software version 4.0 or higher. Since the introduction of the first central unit (software version 1.0), a number of functions have been slightly enhanced (software version 1.10). Software version 2.0 affords communication with a PC via modem. In addition, certain functions and capabilities were further extended.
1.3 Compatibility list 4.0 From ACS30 RVL50, RVL55 3.0 RVA…, RVL4…, RVD2…, RVP3… 1.3 1.11 1.20 From 1.0 1.10 2.0 RVP45.500/900, RVP97, RVP75.230/237/900 RVP40.3 Software version OZW30 Unit, SYNERGYR component WRI80 WRV… Using the compatibility list, it is possible to find out whether the software installed is suited for the desired auxiliary function. From * From 2.01 3.01 4.01 4.0 D-series, 1.13 1.21 1.0 2.0 4.0 1.14 1.22 1.15 1.
1.13 1.21 1.0 4.0 From ACS30 3.0 RVA…, RVL4…, RVD2…, RVP3… RVL50, RVL55 OZW30 1.3 1.11 1.20 From 1.0 1.10 2.0 RVP45.500/900, RVP97, RVP75.230/237/900 RVP40.3 Software version WRI80 WRV… Unit, SYNERGYR component From * From 2.01 3.01 4.01 4.0 D-series, 2.0 4.0 1.14 1.22 1.15 1.
2 Brief description of the system The SYNERGYR Control & Metering System is a combined system designed to control the room temperature in flats, apartments, consulting rooms, etc., and to facilitate consumption-dependent heating cost billing through individual acquisition of the proportional amounts of thermal energy used. All components of the system are interconnected via a data line, the so-called building bus.
2.2 Room units QAW10 and QAW20… A room unit can be connected in each apartment. It is used by the occupant to adjust the required room temperature which, depending on the type of room unit used, is an autonomous setpoint or a readjustment of the central setpoint adjusted by you on the OZW30 for all apartments. On the QAW20… room unit, the occupant can enter a complete 7-day program covering the normal occupancy times of his apartment. Each room unit has an Economy button.
All required values are entered and logged at the time the plant is commissioned. 2.5 Pulse adapter AEW2.1 If, in an apartment, 2 or more other consumption values are to be acquired – in addition to the thermal energy used for heating – an adapter is required. It collects such data and stores them. All required values are entered and logged at the time the plant is commissioned. 2.
3 Operating the central unit 2 3 4 2841Z25 1 6 5 7 Front 1 2 3 4 5 6 7 Buttons on the left Display Buttons on the right Storage button Operating cards Lock Hole for sealable fixing screw 9 10 2841Z26 8 Underside 8 9 10 Jack for modem's power supply RS-232 port Memory card 14/116 Building Technologies HVAC Products Control and Metering System Operating the central unit CE1U2841E 29.07.
3.1 Buttons and display 2841Z09 The display is divided into 2 sections: • The left side of the display is the “Address”. It defines the assignment of the displayed variable (that is, function, measuring location, purpose, etc.). The 3 buttons on the left, , and , are assigned to that section of the display • The right side of the display shows the numerical value of , the displayed variable.
3.2 Left side of the display The left side of the display comprises four 1- and 2-digit numbers. They define the entry or display function whose numerical value is shown on the right side of the display. • The first number defines the field of use. The number is identical with that on the respective operating card: 1: Building 2: User 3: Diagnostics building 4: Diagnostics user 5: Control 6: Startup building 7: Startup user • The second number (if present) is the number of the apartment.
6: Non-SYNERGYR meter, connected to the second pulse adapter (input 2) • The fourth number always stands for an entry or read function. For the meaning of the numbers, refer to the operating cards which have the numbers listed. Chapter “4 Description of operating lines“ of the Operating Manual provides a detailed description of each line. You can select and adjust the 4 numbers with the buttons on the left.
8. Press button or until the fourth number reads 25. You have thus selected the required function. Now, if you wish to see the heating energy meter readings of all apartments, return with the pointer to the apartment number and and . The respective readjust it with the buttons meter readings will be displayed. Proceed in a similar way if you want to have the same variable of the individual meters per apartment displayed. 3.
Note: The display comprises 8 digits. The zeros preceding the number to be entered must be considered. In this case: 00005234! 3. Press button or until the first digit reads 5. 4. Press button until the pointer is located below the second digit. or until the second digit reads 2. 5. Press button 6. Press button until the pointer is located below the third digit. or until the third digit reads 3. 7. Press button until the pointer is located below the 8. Press button fourth digit.
Ö After another 2 seconds, the setting value will be cleared or overwritten with the default value. If the 2 buttons are released while the dashes are still displayed, clearance will be canceled. 3.6 Display during operation In normal operation, the display shows the time of day. When interrogating variables, the display always shows the updated value. All variables are updated at 3-second intervals.
4 Description of operating lines There are: • Entry functions: You can alter the numerical value of the variable shown. • Read functions: Here, you can read actual values, operating states, etc. The operating cards show these fields shaded. Operating 4.1 Operating card 1 – Building card 1 This operating card contains data and parameters required for ascertaining the consumption data. They always refer to the entire building. Apartment-specific data and parameters are given on operating card 2.
Operating 04 Operating hours card 1 This line is the central unit's operating hours counter. It shows you the current number of operating hours acquired based on the presence of AC 24 V operating voltage. 05 Date Here, the current date is shown. Before starting any work on the central unit, be sure the date is correct since it is used for a number of functions. 07 Degree days last set day Here, the number of degree days on the last set day is given (last billing period).
Operating 13 Operating hours last but one set day card 1 This line shows you the total number of operating hours of the central unit on the last but one set day. 14 Date of last but one set day Here, you can read the date of the last but one set day. 15 Date of set day 1 This line gives the date of set day 1. 16 Date of set day 2 This line gives the date of set day 2 (if entered, otherwise the display shows 00-00). Operating card 2 4.
Operating 02 Meter reading card 2 Here, you can view the current meter readings of all acquired consumption variables of the apartment called up. The individual meters which measure the consumption must be selected from column “Meter number”, one by one. Assignments are as follows: 1: Control and heating cost allocation valve (acquires the heat consumption) or control and heat meter interface (acquires the reading of the connected heat meter).
Operating card 2 in consumption between the last and the last but one set day (heating season), you can go to line 11 to view the readings on the last but one set day. The control and heat meter interface adopts the set day value from the heat meter, if the latter can be read via the Mbus and storage took place on the same set day. Otherwise, the set day value will be simulated with the help of the current meter reading in the interface.
Operating 21 Meter reading end of January card 2 On this and the following 11 lines, the meter readings at the end of the last day of the month are given for each meter installed in the apartment. This means that in the event of a change of occupant, an immediate readout is not required. The values are retained for 1 year and will then be overwritten. Hence, the values of this line – Meter reading end of January – will be overwritten on January 31 of the following year.
Operating 27 Meter reading end of July card 2 This line shows you the reading of each meter last July 31. 28 Meter reading end of August This line shows you the reading of each meter last August 31. 29 Meter reading end of September This line shows you the reading of each meter last September 30. 30 Meter reading end of October This line shows you the reading of each meter last October 31. 31 Meter reading end of November This line shows you the reading of each meter last November 30.
Operating card 2 2: 3: 4: 5: 6: 7: 8: 88 Electricity Gas Thermal heat Steam Hot water Cold water Heating cost allocation Meter calibration date On this line, the date of the last calibration of each meter installed in the apartment is given. It serves as a reminder to ensure the next calibration will be made as scheduled. With the control and heat meter interface, the date of a forthcoming battery change will be displayed, provided the connected heat meter supports the function.
Operating card 3 35 Outside temperature If an appropriate sensor is fitted, you can read the actual outside temperature here. It can also be called up from room units type QAW20… . If a temperature measuring unit QAB30 is used together with a QAC22 outside sensor (Ni 1000 sensing element), the QAB30 displays the outside temperature.
Operating 40 Input 2 card 3 This line corresponds to line 39 and is used for a second device installed in the plant. 41 Operating hours of burner 1 This function is not possible with heating group controllers on the LPB. If the group controller is adequately equipped and connected to the central unit via a data line, you can view here the number of burner operating hours.
Operating card 3 If the memory card is write-protected, the following display appears, for example 128 - ----, meaning that there is no storage capacity left so that the memory card cannot accept more data. 45 Number of SYNERGYR devices Here, the total number of devices connected to the central unit is given. This includes the following types of units: • The OZW30 central unit • All WRV… control and heating cost allocation valves • All WRI80 control and heat meter interface • All AEW2.
Operating 50 Fault of central unit card 3 Also refer to chapter “9 Error list“. If the central unit detects a fault in the plant, the display will automatically change to this line, displaying ERROR and giving the error code. If you call your Siemens service team, please always give the error code.
Operating 54 Production number central unit card 3 Operating Upon final inspection in the factory, each central unit is given a production number. This information may be helpful in connection with service calls. 4.4 card 4 Operating card 4 – Diagnostics user All lines of operating card 4 relate to data and functions in the apartments. For this reason, you always have to call the number of the respective apartment first, which is the second number on the left side of the display.
Operating card 4 The errors are subdivided into groups which have the following meaning: 10…19: Device error (hardware and / or software) 20…29: Error in connection with operating voltage 30…49: Communication error 50…59: Measuring error 60…69: Interventions from outside 70…79: Various errors, signals received at the status inputs 80…89: Error from the heating plant 90…99: Startup error After having acknowledged the error by pressing any of the buttons (but not the FILE button), the date on which the erro
Operating card 4 Here, you can call up the production number of the control and heating cost allocation valve or control and heat meter interface and those of the pulse adapters installed in the apartment. This information may be helpful in connection with service calls. 69 Minimum flow rate The adjusted minimum flow rate can be read from the control and heat meter interface. A minimum flow rate of 0 l/h indicates that the connected valve is fully closed when there is no request for heat.
Operating card 4 The display of ---- indicates that this setpoint is not available, due to the type of unit used. 73 Flow temperature This line shows you the temperature acquired at the flow of the apartment. With the control and heat meter interface, the flow temperature is read by the connected heat meter. 74 Return temperature This line shows you the temperature acquired at the return of the apartment.
Operating 78 Opening ratio card 4 Here, you can see the opening ratio of the control and heating cost allocation valve. The display shows the period of time the valve has been open during the last hour (as a percentage reading). Here, the control and heat meter interface shows the zone valve’s mid-position during the last hour. 79 Valve position Here, you can display the current valve position.
Operating card 4 The following overriding functions and the corresponding enforced valve positions are indicated as follows: Lo: Low flow rate: WRV…: The valve is fully closed because the flow rate is below the minimum. WRI80: Limitation to minimum flow rate. Co: Cold: WRV…: The valve is fully closed because the temperature differential of flow and return is too small.
Operating card 4 subdivided into several zones. In that case, each WRV82 / 85 / 86 has been assigned to one of these zones. This assignment appears as a second number beside the number of the heating groups. 83 Room unit Here, you can read the type of room unit used.
Operating card 5 The entries on lines 57…61 relate to the room temperatures of the apartments. Also refer to the tips given in chapter “6 Practical tips“. 55 Start Default value: (Occupancy time) Your 1st entry: Your 2nd entry: Your 3rd entry: 00:00 Here, you enter the start of the general occupancy time of the building, that is, of all apartments acquired by the central unit. The entry applies to every weekday. A separate program for every weekday is not available.
Operating card 5 During non-occupancy times, all apartments use a reduced temperature setting (absolute priority). The heating programs entered on the QAW20… room units cannot normally override these time limits. With software version 1.20 or higher of the QAW20…, this limitation can be deactivated via the service level (refer to subsection 7.9.7 “Limiting the occupancy times”). The time of the general end of occupancy time is entered the same way as that of the start of occupancy time.
Operating 58 Normal room temperature (Occupancy time) card 5 Default value: Your 1st entry: Your 2nd entry: Your 3rd entry: 20.0 Here, you enter the normal room temperature setpoint of the apartments equipped with the room unit QAW10. These room units have no setpoint adjuster but only allow a setpoint readjustment to be made. This means that the general setpoint you enter on this line can be readjusted by ±3 °C.
Operating card 5 NZ NNZ Adjustment of the different setpoints and limit values NZ NNZ w 57 58 59 60 61 Occupancy time Non-occupancy time Room temperature setpoint Maximum setpoint for QAW10 / QAW20… room units (as entered on line 57) Normal setpoint for QAW10 room units (as entered on line 58) Reduced setpoint for QAW10 room units (as entered on line 59) Minimum setpoint for QAW10 / QAW20… room units (as entered on line 60) Setpoint for non-occupancy time (as set on line 61) 60 Minimum room temperatu
Operating card 5 With this function, you prevent undesired heat transfer from one apartment to another. 61 Room temperature non-occupancy time Default value: Your 1st entry: Your 2nd entry: Your 3rd entry: 14.0 On this line, you enter the general setpoint to be used during non-occupancy time. On the QAW20… room unit, it is not possible to select a lower setpoint for the non-occupancy time. This means that the room temperature entered on this line is the actual temperature level of the apartment.
It is recommended to use a setting of 0.75. Operating card 5 Note Shifting load compensation is only possible in connection with controllers using the H-bus or LPB: • Controllers type RVL55 / 50 on H-bus: The controller must run on software version 5.0 or higher, and the OZW30 central unit on software version 1.0 or higher • Controllers type RVP75.230 / .237/ .900, RVP45.500 / .900, RVP40.3 and RVP97 on H-bus: The controller must run on software version 4.
Operating card 5 • Status (left side of the display): 0: The heating group controller provides heating to the reduced room temperature setpoint 1: The heating group controller provides heating to the normal room temperature setpoint • Setpoint (right side of the display): Software version 2.0 or higher: The display shows the change of the room temperature setpoint communicated to the heating group controller.
Operating 4.6 Operating card 6 – Startup building card 6 Operating card 6 only contains entry functions. All displayed numerical values within the setting range can be changed as required. 01 Central unit number Default value: Your 1st entry: Your 2nd entry: Your 3rd entry: Production number On this line, you enter the number of the central unit. This may be any number consisting of a maximum of 8 digits. The number is valid for the whole plant controlled by this central unit.
Operating 06 Weekday / time of day card 6 Here, you enter the current weekday and the correct time. The format is the following: • 1 digit for the weekday (1 = Monday, 2 = Tuesday, etc., through 7 = Sunday) • 2 digits for the hour (0…23) • 2 digits for the minutes (0…59) Weekday and time must be entered in this order.
Operating One set day: card AP 6 AP Data record of 30.6.2005 is stored Data record of 30.6.2005 will be overwritten Two set days: AP AP AP AP Data record of 30.6.2005 is stored 30.6.2005 31.12.2005 30.6.2006 31.12.2006 2841D02en Data record of 30.6.2005 will be overwritten 30.6.2007 1 and 2 set days – example of a data record storage on 30.6.2005 t Time AP Billing period Data record of 30.6.2005 will be saved Data record of 30.6.2005 remains saved Data record of 30.6.
Operating card 6 If you enter 2 set days per year, 1 billing period will last 6 month. This means that the last data record will be retained for 1 year (2 billing periods). Hence, by entering a second set day, the duration of data storage in the central unit will be cut by 50 %.
Operating card 19 Beginning of summertime Default value: 6 Your 1st entry: Day – month Your 2nd entry: Your 3rd entry: 25 – 03 This entry can only be made on central units of software version 2.0 or higher. Here, the earliest possible date (day and month) is entered on which the change from winter- to summertime can occur. The change will take place on the first Sunday (at 03.00) that follows the date entered.
Operating 37 Room temperature for degree days card 6 Default value: Your 1st entry: Your 2nd entry: Your 3rd entry: 20.0 Here, you select the desired room temperature for calculating the number of heating degree days. If there are no country-specific regulations concerning this variable, use 20 °C as a guide value.
Operating card 6 The central unit verifies the entry by counting the number of apartments connected to it (apartments that can be identified on the bus). If there is a difference, an error status message will be delivered. With software versions 1.0 and 1.10, readjustment of this value automatically deletes all data saved on the central unit (the data on the memory card are retained). The last 50 error status messages and the dates the meters were changed will also be deleted.
Operating card 6 Exercise caution when connecting a PC! Since most PCs are grounded via the COM port and the power pack, a ground fault can occur if the secondary side of the SYNERGYR system is grounded, damaging the WRV… heating cost allocation valves beyond repair. For this reason, connect the COM port via galvanic separation, such as a commercially available optocoupler, or use an isolating transformer or a rechargeable battery.
Operating card 6 With entry of 0 or 1, the valves will automatically return to normal control mode at 00:00 h., or after no more than 5 hours. 85 Function selection WRV Setting only possible on central units of software version 4.0 or higher. Default value: Your 1st entry: Your 2nd entry: Your 3rd entry: 0 This function is used for the protection of plant where the WRV… control and heating cost allocation valve is installed.
Operating card 6 12: Plant with circulating pump in the apartment, pump overrun time = 2 min 13: Plant with circulating pump in the apartment, pump overrun time = 4 min 14: Plant with circulating pump in the apartment, pump overrun time = 8 min 15: Plant with circulating pump in the apartment, pump overrun time = 16 min 20: DHW charging with changeover valve (special application) Entries other than those given above may lead to undefined plant conditions and should never be made! 99 Setup protocol With
Operating card 7 With the control and heat meter interface, it is always the heat meter’s customer number that is used for meter 1. It can only be set on the heat meter. 02 Meter reading This entry can only be made locally with the AZW30 service unit.
Operating card 7 With WRV… control and heating cost allocation valves up to software version 1.22, the standard data record must not be written. 58 Normal room temperature * This entry can only be made with the AZW30 service unit. The entry is not required in plant equipped with a central unit. Default value. Standard data record: Your 1st entry: Your 2nd entry: Your 3rd entry: 20.
Operating card 7 The minimum flow rate is not supported by the control and heating cost allocation valve. The display of ---- indicates that this setting value is not available on the device side. 70 Nominal flow rate This entry can only be made locally on the WRI80 with the AZW30 service unit. Default value: Your 1st entry: Your 2nd entry: Your 3rd entry: 1500 Here, with the control and heat meter interface, you can set the nominal flow rate of the connected heat meter.
Operating card 7 With the WRI80, the maximum flow rate is limited by the nominal flow rate at the top and the minimum flow rate at the bottom. Type reference Limitation in liters Function deactivated at WRV8…200 0…199 200 WRV8…400 0…399 400 WRV8…750 0…749 750 WRV8…1500 0…1499 1500 WRI80 Qmin…Qnenn DIP switch 2 = off With the help of this setting, the valve supports hydraulic balancing. Note: If the WRV…’s display shows a bar in place of a number, the valve has left its display range.
Operating 81 Heating group / flow zone card 7 With OZW30 software version 1.10 or higher and with WRV… software version 1.11 or higher (WRV… valve) and with the WRI80: Entry can be made from the central unit or with the AZW30 service unit. OZW30 software version 1.0 or WRV… software versions lower than 1.11: Entry can only be made with the AZW30 service unit. Default value: Group: 1 Zone: 0 Each apartment can be assigned to a heating group which provides load-dependent boiler temperature control.
Operating card 7 Manual valve control is achieved as follows: 0: Valve fully closed 1: Valve fully opened 2: Automatically; valve in normal control mode With the entries of 0 and 1, the central unit automatically changes to automatic mode at 00:00 h. The control and heating cost allocation valves change to automatic mode after a maximum period of 5 hours. Note: If, with a WRV… valve using a software version lower than 1.
Operating card 7 When supplied, the frost protection function (acting on the pump) and the other functions are activated. The entry is to be made according to the following table. With the control and heat meter interface, only the frost protection function can be selected.
− Operating card 7 (please also refer to operating card 4, line 79). The summer function should only be deactivated with special applications 86 Unit factor * This entry can only be made with the AZW30 service unit.
Factor Unit Display on the OZW30 central unit Display on the QAW20… room unit 18 GJ × 10 88888888 888888 19 GJ × 100 88888888 888888.8 38 ml * 88888.888 l 888888 39 ml × 10 888888.88 l 888888 40 ml × 100 888888.8 l 888888.8 41 Liter 88888888 Operating card 7 888888 l 3 42 Liter × 10 888888.88 m 888888 43 Liter × 100 888888.8 m3 888888.8 m3 44 m3 88888888 45 m3 × 10 88888888 888888 46 m3 × 100 88888888 888888.
Operating card 7 0: Other 1: Fuel oil 2: Electricity 3: Gas 4: Heat 5: Steam 6: Hot water 7: Cold water 8: Heating cost allocation When interrogating the meter readings on the QAW20… room unit, the metering media (electricity, gas, heat, hot and cold water) and heating cost allocation are displayed with symbols. 88 Meter calibration date * This entry can only be made with the AZW30 service unit. On this line, the last calibration date of each meter installed in the apartment is to be entered.
Operating card 7 14: Plant with circulating pump in the apartment, pump overrun time = 8 min 15: Plant with circulating pump in the apartment, pump overrun time = 16 min 20: DHW charging with changeover valve (special application) Entries other than those given above may lead to undefined plant conditions and should not be made! 90 Pulse valency * This entry can only be made with the AZW30 service unit.
Operating card 7 If the meter readings can be displayed on the QAW20… room unit, the unit factor selected should be such that it can be shown on the room unit. Suited are unit factors with no or 1 decimal. Examples are liters or liters × 100. 91 Type of pulse source * This entry can only be made with the AZW30 service unit.
Operating card 7 If the apartment uses 2 AEW2.1 pulse adapters, 1 of them must be identified as the “2nd pulse adapter” using subaddress 2. Connected to the “2nd pulse adapter” are meters 5 and 6. The second pulse adapter is the first to be put into operation. 95 Read standard data record This is only possible with the AZW30 service unit. To simplify the setting of apartment parameters, standard data records can be used.
Operating 99 Setup protocol card 7 Here, a protocol can be generated when starting up the plant. It will be written on the memory card by pressing simultaneously (for 2 seconds) buttons and on the right. The protocol contains the parameter settings of all adjustable values and the configurations of the device to which the service unit is connected. This function is required when meters are changed, for saving a protocol on the memory card for each device in use.
5 About the devices 5.1 Control and heating cost allocation valve • In the case of extremely low flow rates, the valve will close since very small flow rates cannot be accurately measured (suppression of hydraulic creep) • In the event of a power failure, all current meter readings and the actual time are saved in nonvolatile memory • The valve is maintenance-free and performs self-checks • Tampering is recorded 5.1.
Error status messages are displayed for 2.5 seconds. The period of time the meter’s reading is displayed is appropriately reduced. 5.1.2 Manual operation In the event of a power failure, or if the control and heating cost allocation valve is defective, the valve can be operated manually. Faulty devices must be isolated from the power supply to ensure the selected position of manual adjustment will not change.
• • • • • the mounting location, are directly adopted by the heat meter The monthly values are adopted by the heat meter, if available via M-bus. Otherwise, they will be internally simulated just after 0:00 on the first day of the next month The meter reading on the last and the last but one set day is adopted by the heat meter, if the set day was executed on the same day. Otherwise, the interface will simulate the value on the set day.
5.2.3 Pulse adapter (meter 2) In the event of a power failure, meter readings, operating hours, time of day and error messages are filed in a hardware buffer. The pulse adapter monitors itself and wiring to the meters (only with meters using the Namur circuitry). Should faults occur, they will be delivered as error messages via the building bus. 5.2.4 Indication (LED) The LED indicates the following states: • LED steady on: Startup when power is applied (max.
During occupancy times, the user can choose reduced heating and then return to normal heating by pressing the Economy button. During non-occupancy times, the Economy button is inoperative. 5.
• Current meter readings for DHW, cold water, gas, electricity and outside temperature, provided these variables are acquired • Meter readings of the consumption variables on the last set day In the event of longer absence, the user can enter a holiday period (number of days), in which case reduced heating is provided. The remainder of the holiday period (time to elapse until the change back to the normal temperature occurs) will be displayed.
6 Practical tips 6.1 About heating • In setback mode, the heating system will be switched off to remain deactivated until the set reduced temperature is reached • Heat is not as fast as light, for instance. Take this into account when making adjustments to the heating system. There will be an immediate response from the control system, but heat transfer processes take more time.
− Curtains that cover radiators reduce their efficiency. The same applies to furniture, partitions, etc., placed in front of them − Saving energy also means active environmental protection 6.3 Important information about the reference room The reference room in which the room unit with the room temperature sensor is located must not be exposed to temperature disturbances since these could adversely affect the control functions.
− If the required room temperature is not reached: Change the heating program such that the comfort period will be extended • Heat generation and heating group: − Does the heating group controller indicate an error? − Does the heating group controller use the correct operating mode? − Does remote operation act on the heating group controller? Note display! − Are the entered temperatures and occupancy times correct? − Have any settings on the heating group controller been changed? − Has the burner gone to l
7 Commissioning The possible setting values of all devices are specified in the Operating Manual. The following commissioning instructions give the order of the individual steps and can be used as a checklist. The system must be commissioned by Siemens service personnel or by an authorized partner. 7.1 Preparation Prior to commissioning the plant, the following checks must be made: 7.1.
• Connection between ALW84 conduit box and AEK84 control module and from there to the actuator of the room valve • Connection between AEW2.1 pulse adapter and nonSYNERGYR meters • Connection between AEW2.
7.2 Setting up the central unit Before the devices in the apartments can be put into operation, the parameters of the central unit must be set. When switching on, the central unit performs a self-test. The display shows SELFtESt . After completion of the self-test, InStAL, weekday and time of day are displayed. IMPORTANT! Write the values entered or changed by you into the appropriate fields of this Operating Manual! 7.2.
• Clock time master LPB (line 03) • Date, weekday, time of day, etc. (lines 05, 06, 15 and, possibly, line 16) • Parameters for heating degree days (lines 36 and 37) • Starting value operating hours counter (lines 39 and 40) • Number of apartments (leave on 0). This parameter is to be set only after the apartments have been commissioned The remaining standard parameter settings should not be changed. They need to be changed in special cases only.
4. Install the control and heating cost allocation valve using a new pair of seals and tighten the fittings. 5. Only with WRV81 / 83 / 84: Fit the flow temperature sensor: a) Check proper installation of protection pocket b) Immerse sensor fully in the protection pocket c) Secure the sensor to the protection pocket using the adjusting screw 6. Open both shutoff valves. If required, open air relief cock and let air escape. 7.3.3 Wiring the control and heating cost allocation valve 1.
7.3.4 Basic balancing of control and heat cost allocation valve If the display shows error 56, the pressure differential across the valve is too great. In that case, the flow rate lies outside the measuring range. The values depend on the valve’s software version. Remedy: Reduce overpressure with the integrated throttle until the flow rate is within the permissible range. Type of valve Display outside the measuring range up to software version 1.15 with software version 1.
− The parameters are set one by one − If the parameters have previously been saved in the service unit, they can now be copied to the control and heating cost allocation valve (only with WRV… of software version 1.30 or higher): Select line 53 (Write standard data record), press simultaneously (for 2 and on the right. Then, seconds) buttons adapt the parameters where required 4. Only in plants not equipped with the OZW30 central unit: Set the parameters of the room temperatures (lines 58 and 59). 5.
Select line 95, press simultaneously (for 2 seconds) butand on the right. tons This assigns the data to meter 1 of the apartment. In the next apartment, the data of the parameters identified with an asterisk * can be read to the associated control and heating cost allocation valve, and appropriately adapted, using line 53. Now, the parameters of the control and heating cost allocation valve (meter 1) of the apartment have been set.
Y1, Y2, G2: Zone valve CM+, CM-: Heat meter H1, MD: Request for DHW Q1, MD: AEK84 for apartment pump 4. Check the connections to all devices. 5. Switch on the SYNERGYR building bus: If the LED is not lit, there is no power present (connection terminals G1 and G2: AC 16…24 V). If, after about 1 minute, the LED is not flashing, the building bus is incorrectly connected (change connections at terminals DB and MB; voltage DB-MB: DC 15…18 V). 7.3.
4. Only on plant not equipped with the OZW30 central unit: Set the parameters of the room temperatures (lines 58 and 59). 5. Enter the nominal flow of the heat meter (line 69). 6. Enter the minimum and maximum flow rate of the control and heat meter interface as specified by the planning engineer (lines 70 and 76). 7. Only in connection with the heating group controller: Enter the assignment of the control and heat meter interface to the heating group (line 81).
7.3.8 Setting the parameters of meter 2 “Meter 2” is the consumption meter connected directly to the control and heating cost allocation valve or control and heat meter interface. Its parameters are set like those of the control and heating cost allocation valve. Procedure: 1. Only if required: Enter the meter number (line 01). Before the meter reading can be entered, the parameters of lines 86…91 must be set. 2. Set the parameters of meter 2 (lines 86, 87, 88, 90, and 91).
7.3.9 Setting the parameters of the pulse adapters AEW2.1 for meters 3…6 If the apartment uses consumption meters in addition to meter 2 (termed “Meter 3”, “Meter 4”, etc.), their parameters are to be set via the AEW2.1 pulse adapters. The parameters of a pulse adapter are set analogously to those of the control and heating cost allocation valve. The service unit is to be connected to the service interface of the pulse adapter whose parameters are to be set. Procedure: 1. Check the electrical wiring.
3. Only if required: Enter the meter number (line 01). Before the meter reading can be entered, the parameters of lines 86…91 must be set. 4. Set the parameters of the meters (lines 86, 87, 88, 90, and 91). There are 2 choices: − The parameters are set one by one − If the parameters have previously been saved in the service unit, they can now be copied to the pulse adapter: Select line 53 (Write standard data record), and press simultaneously (for two seconds) on the right.
− If the LED is steady on, the cause may be one of the following: No address plug fitted Wiring error; MB and DB mixed up Poor contact Parameter of type of pulse source (line 91) incorrectly set: With Namur circuitry = 01, without = 02 2. Insert the address plugs (plugs 121…123). 3. Set the parameters of the pulse adapter as described above. If, due to unfavorable local conditions, for example, it is necessary to assign more than 3 AEW2.
1. Insert the address plugs (plugs 101…119) according to the flow zone numbers 1…19. 2. Check the electrical wiring. In normal operation, the LED of the pulse adapter flashes. − If the LED is not lit, there is no operating voltage present (G1 and G2: AC 16…24 V) − If the LED is steady on, the cause may be one of the following: No address plug fitted Wiring error; MB and DB mixed up Poor contact 3. Check proper installation of the protection pocket. 4.
• Conduit box (ALW30/84 or other) • Control module AEK84 • Temperature measuring unit QAB30 − Connecting unit − Flow temperature sensor (adjusting screw on the protection pocket) 7.6 Final work on the central unit Checking and logging of startup are made with operating card 6. 1. Enter the number of apartments (line 44). The central unit changes to normal operation. InStAL disappears from the display.
is established, solar compensation is automatically set to 20 °C. This means that the RVL55 requires no AZY55.20 plug-in module! • The controllers' operating mode must be set to AUTO or PLANT ON 7.7.
• Snap the unit onto its base (refer to the Mounting Instructions on the package) • Give the Operating Instructions to the user 7.8.2 Room unit QAW20… Same as the QAW10 room unit, but make certain that the Operating Instructions in the required language are enclosed with the unit (booklet in the unit, card in the cover). With the aid of the Operating Instructions, the user can enter the required values on the programming level. Entries on the service level (refer to section “7.
• Entry: On the service level, the values are entered like those on the programming level using 2-step operation. The service level starts with line 51 however • Adjustable values are entered with the buttons and : 1 2 Selection of operating line Adjustment of value • Quitting: The service level is quit by closing the cover. 7.9.
7.9.4 Locking the programming level If locking of the programming level is required (in public buildings, tampering by children, etc.), it can be activated on line 53: Locking inactive Locking active When locking is active, the values on the programming level can be altered only when, previously, the 2 outermost and were pressed for 5 seconds while buttons the cover was open.
7.9.6 Setting the parameters of the signal input The parameters of the programmed signal input at terminals T1–T2 are entered on line 55. There is a choice of 4 functions (factory setting is 1, external room temperature sensor). Function 1: °C Connection of an external room temperature sensor QAW44: On line 57, the effect of an external room temperature sensor can be entered. If no entry is made, the effect is 50 %.
Switching over to the reduced setpoint. Application: Window switch or telephone modem Function 3: Switching the operating mode to standby. Application: Telephone modem or window switch Function 4: Alarm message to the central unit. With the configured contact status, a fault status message is delivered to the central unit. The central unit handles the message as error no. 75. The message will be displayed on the central unit, written on the memory card and then forwarded to the relay output. 7.9.
following table. The operating level output will be closed when one of the selected functions is active.
8 Replacing defective devices Defective units must be replaced by Siemens service staff or by an authorized partner. 8.1 General checks In the event of fault, wiring and power supply should always be checked first. If, after these checks, the unit cannot be put back into operation, it must be replaced. 8.2 Defects on the central unit 1. Open the housing. 2. Pull both terminal blocks from their bases and away from the housing. It is not necessary to disconnect the wires. 3.
the apartments. Exception: The actual number of heating degree days will be lost. This value is nonadjustable. The new central unit starts from zero • Depending on the period of time that has elapsed after the central unit became defective and depending on the type of fault, other data may be missing, too.
c) Press simultaneously (for 2 seconds) buttons on the right and Ö Display before storage: 0 Ö Display after storage: 1 3. Replace the defective device, change the address plug. 4. Set the parameters of the new device as described in the Operating Manual. If storage of the parameter settings was possible (operating card 7, line 95), they can be written from the service unit to the new unit: 5. 6. 7. 8.
9 Error list Any errors or malfunctions must be rectified either by Siemens service staff or by an authorized partner. Error code 11 12 Device Cause Remedy, hints, notes WRV… OZW30 Wrong parameter settings Loss of data in RAM 13 OZW30 Loss of data in EEPROM WRV… WRI80 AEW2.
Error code 34 Device Cause Remedy, hints, notes OZW30 Communication breakdown on the building bus • Check whether device has intentionally been removed. If yes, reenter the number of apartments (operating card 6, line 44) (even if the number of apartments has not changed and – for example – only 1 AEW2.1 has been removed or deactivated) Display on WRV = no buS: Check building bus connections (approx. 15…18 V across MB and DB) LED steady on: Check building bus connections (approx.
Error code 54 Device Cause Remedy, hints, notes WRV… Error in acquisition of flow rate 55 Short-circuit or open-circuit at pulse input 56 WRV… WRI80 AEW2.
Error code Device Cause Remedy, hints, notes • 1 WRV… / WRI80 each, with a maximum of 96 apartments (no address plugs >96, with the exception of the AEW2.1 with addresses 121…126) Check entry (operating card 6, line 44).
10 Communication with PC For reading the data from the central unit, there is an RS-232 port available to which a PC can be connected, either directly (with null modem or link cable) or via modem. In that case, for communication with a PC, the Siemens ACS30 readout software must be installed. 10.1 Communication via modem The central unit supports communication via modem. It is advisable to use a modem with a Baud rate of at least 9,600.
10.2 Direct connection to a PC For direct connection to a PC, a commercially available standard null modem or link cable is required (for connection to the port of the central unit or PC). The illustration below shows a null modem and a link cable. It can also be seen which lines of the RS-232 port are required.
In order to prevent damage to the devices in such circumstances, a directly connected PC must be galvanically separated from ground, e.g. by using an interface optocoupler or an isolating transformer, or battery power. This precautionary measure is not required when using central units of series D or higher. 112/116 Building Technologies HVAC Products Control and Metering System Communication with PC CE1U2841E 29.07.
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Siemens Switzerland Ltd HVAC Products ARG30.GB *ARG30.GB* Siemens Switzerland Ltd Building Technologies Group International Headquarters HVAC Products Gubelstrasse 22 CH – 6301 Zug Tel. +41 41 724 24 24 Fax +41 41 724 35 22 www.sbt.siemens.com 2841Z31en Assembled in Switzerland © 1992-2005 Siemens Switzerland Ltd Subject to alteration 116/116 Building Technologies HVAC Products Control and Metering System CE1U2841E 29.07.
