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Summary of Contents for BWT Bewazon VULW 12
- Page 1 Installation and operating manual Bewazon VULW Ozone generation unit Type: VULW 12 – 700 Changes reserved!
- Page 2 Thank you very much for the confi- dence that you have shown in us by Page 3 Table of Contents purchasing a BWT appliance.
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Page 3: Table Of Contents
Table of Contents Safety Instructions Troubleshooting General safety instructions 10.1 Warning messages Scope of the documentation 10.2 Fault messages 1.3 Personnel qualifications Warranty Transport and installation Technical Data Symbols used 12.1 Single-circuit units in the standard design * How safety instructions are displayed 12.2 Units with a standard design * 1.7 Product-specific safety instructions List of supplied parts... -
Page 4: Safety Instructions
To avoid damage during transport to the installation location, do not General safety instructions remove the BWT product from the packaging until you have reached the relevant location. Then dispose of the packaging in the correct manner. The product was manufactured according to all recognised regulations Check that the delivery is complete. -
Page 5: How Safety Instructions Are Displayed
How safety instructions are displayed Product-specific safety instructions In this document safety instructions precede any sequence of actions When the ozone generation system is running, the high voltage com- that could cause harm to persons or damage to property. All hazard ponents in the unit are live. -
Page 6: List Of Supplied Parts
VA or PVC (basic material of the ozone generator) TA (dryer for tropical areas) or space (for standard model) Special units are units with: II, III, IV BWT standard cabinet ozone devices comprise: Air dryer Air flow meter Regeneration blower Ozone generator made of stainless steel... -
Page 7: Use
Function Intended Use Ozone is a colourless gas with a characteristic odour. Chemically, ozone, BWT Bewazon VULW 12 to 700-series ozone devices produce ozone or O , consists of three oxygen atoms and can be produced from the oxy- by means of corona discharge and comply with the requirements of the gen, or O , in the air. - Page 8 Heat is released by the corona discharge. The heat is dissipated by cooling water. The condition of the cooling water is not changed, other than an increase in the temperature. The cooling water flow is measured and monitored by the unit, which displays the current value. When the releaseor activation signal for ozone generation is cancelled, the unit performs an air purge phase.
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Page 9: Function Monitoring
When ozone generation is enabled, the unit starts the integrated booster process. The mixing device draws the ozonic gas from the unit and pump to build up the air flow using this contact. As an option, the booster mixes the ozone with the water. The BWT mixing device guarantees pump power switch and acknowledgement signal can be integrated into optimal efficacy (mixing effect) with minimum use of energy. The ozone the ozone device as a special order. -
Page 10: Installation Conditions
Installation conditions Unit safety A safety assessment was performed in accordance with EN ISO 13849 for the operation of Bewazon VULW series ozone devices. A performance max. 45° level PLr, category “C”, is required for ozone device operation. This is achieved by safeguarding plant operation by implementing an ozone gas detector and an emergency stop switch. - Page 11 Space requirements – Cooling water drainage The ceiling clearance must be at least 2300 mm. The cooling water drained from the ozone cabinet remains un- changed except that the temperature increases by up to 10° C. The installation area must be level and dry. Please see DIN EN 806 (previously DIN 1988) if the cooling water The ozone cabinets must be accessible from the front with a minimum is fed into a closed system.
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Page 12: Installation
Installation Electrical connections Only by BWT service staff or trained personnel! The electrical connections between individual cabinets are completed There should be at least 1 m in front of the cabinet to allow the doors during start-up by BWT service staff. The cables are led into the system to be opened. through threaded connections on top of the cabinet. -
Page 13: Start-Up
11. Measure the dew point of both dryers at the connection after the ozone tubes (A). 12. Check pipes for leaks. The unit may only be performed by BWT service staff or trained per- 13. Check the thermostat settings for the dryer and cooling water. sonnel. 14. Verify basic settings of all operating parameters. -
Page 14: Operation
CAUTION The unit may only be operated by trained personnel. Operation is carried out using the touch panel (TP). The display is touch-sensitive. After the plant is switched on, the “BWT” screen appears Tap the “BWT” field to go to the operating start screen. You can navigate to all of the other screens for operating the unit from there. - Page 15 PLC settings: Note: To change settings, you require the operator password of the customer (1111) or service password. You can set the language without the passwords. Language Set the user language Maintenance Maintenance dates and confirmation that main- tenance was performed by service Fault message Faults that occur are numbered and displayed meter separately for all fault numbers to assess the...
- Page 16 PLC language screen: The following languages are available for selection: – German – English – French – Italian – Spanish – Polish – Russian – Chinese – Indonesian Set time, password Many of the input fields are password-protected. To change settings, you require the operator password of the customer (1111) or the service password.
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Page 17: Ozone Generation
Extended settings PLC (only with the service password) When ozone generation is switched off, you can change the PLC hardware configuration settings for: ● Installing/un-installing the P/PID controller option (SM 1231) ● Installing/un-installing the analogue output option (SM 1232) ● Installing/un-installing the integrated cooling water loop option (SM 1223 + circuit device) Performing the installation: ●... - Page 18 The ozone generation operating state is displayed as a column. Du- ring the pre-operation purge and post-operation purge, the size of the column indicates the remaining purge time. The colour indicates the operating state itself: Pre-, post-operation purge Ozone generation Not ready, fault Operation indicator: the double arrow icon appears in many of the follow-on screens;...
- Page 19 Ozone device: Ready/operation Operation mode for “switch on ozone” The device can be switched on and off directly on the touch panel or by remote control. For the “switch on ozone” switch, there are 4 operating modes: 1. Panel: manually on the device 2. E xt. contact: The unit is switched on and off using an external customer-supplied floating contact 3. E xt. + P/PID (P/PID controller option): The unit is switched on and...
- Page 20 Release of operation mode The selected operating mode determines the exclusive signal source that specifies the ozone level. For you to select an operating mode, the release for it must already be provided on the “Ozone device: extended settings” screen. The “Panel” operating type is always available for selection. These releases can be changed only if the device is in the “Ready”...
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Page 21: Bewazon Therm Cooling Water Loop (Optional)
Ozone device: Extended settings Cooling water monitoring During unit operation while ozone generation is running (ozone le- vel >= 1), the cooling water flow is monitored. There are four operating modes for doing so: 1. Thermostat: Monitoring is carried out only using the thermostat on the ozone generator. This operating mode should be selected only if the flowmeter is not available 2. T hermostat + min. contact flow meter: In this operating mode, moni- toring is carried out using the thermostat and minimum limit contact... - Page 22 Cooling water loop diagram The storage tank is displayed with the “Min” fill level (yellow arrow) and “Max” fill level (red arrow). Settings: Release for operation and operating parameters CW recharge: The replacement of cooling water can be triggered ma- nually. The water is fed from the loop for any possible further use (into the untreated water storage tank, for example). CW to drain: The drainage of the cooling water into the waste water can be triggered manually.
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Page 23: P/Pid Controller, Analogue Output (Optional)
P/PID controller, analogue output (optional) Ozone device: Ready/operation If the “Prop. controller” operating mode is released for “Set ozone level” on the “Ozone device: extended settings” screen, this operating mode can be selected. For actual controller operation, the controller parameters must be set beforehand on the “Ozone device: proport. controller”... - Page 24 Ozone device: PID controller During operation with the PID controller, the ozone device delivers an ozone output that the corresponding measurement signal guides to- ward (and maintains as close as possible to) the defined setpoint. The measurement signal is an external 4 to 20 mA signal that is supplied via the analogue input module. Signal source unit: Physical unit of the signal, e.g.
- Page 25 Example: Variable mixing Preset: The customer preset corresponds to the conventional mixing operation, regardless of the ozone output, i.e. air flow off => mixing off => output signal = 4 mA air flow on => mixing on => output signal = 20 mA The air input for ozone mixing should be set on the injector according to the current ozone output. That means that the ozone mixing should be operated as variable mixing (see below). To do so, the injector's pressure booster pump is run via a frequency converter, which in turn is actuated by the analogue output signal.
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Page 26: Dryer Mode
Dryer mode Start screen The operating states of dryer 1 and dryer 2 are displayed as columns. When the unit is in operation/ready, the size of the column shows the capacity still available. During regeneration, it shows the time remaining for the regeneration. - Page 27 Dryer test (only with the service password) Only possible if the state of both dryers is “ready” You can use the function to perform a functional test of the following dryer components: regeneration fan, valve, heating and cooling fan (if available). The test lasts for 2 minutes and ends automatically.
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Page 28: Databus Connection (Optional)
Databus connection (optional) PLC databus connection The controller can use one of three available databus connections to connect to the building automation system (optional). The available data bus connections are: a) P rofinet with data exchange using “Put/Get” commands b) P rofinet with the integration of the ozone device into the customer control system using a “GSD” file c) P rofibus DP with the integration of the ozone device into the customer control system using a “GSD” file The building automation system PLC can use the databus connection to control and monitor the whole plant:... -
Page 29: Operator Responsibilities
Operator Responsibilities You have purchased a product that is durable and easy to service. However, all technical equipment requires regular servicing in order to guarantee optimal functionality. The unit must be regularly inspected and serviced by the operator to guarantee functionality and fulfil the warranty conditions. Wearing parts must also be replaced after the prescribed maintenance intervals in order to guarantee functionality and fulfil the warranty conditions:... -
Page 30: Maintenance Messages
Maintenance messages Start screen with maintenance notice: One month before the maintenance period passes, a message notifies you of the next maintenance date. The message has to be acknow- ledged. Start screen with maintenance indicator: When the maintenance period passes, a message is displayed to inform you that the maintenance is required. The message has to be acknowledged. -
Page 31: Troubleshooting
10 Troubleshooting Fault signal The fault signal lamp (12) illuminates. The time must be set correctly for the display to be correct. The display shows the date, time, fault indicator code § .. as well as the full text of the fault messages. Status: Date and time for the fault message status: A: Appear D: Disappear... -
Page 32: 10.2 Fault Messages
10.2 Fault messages Ozone generation is switched off when faults occur which could damage the unit. However, the unit is purged post-operation (for the duration Any faults that pose a potential hazard for the operator result in imme- set), if this is possible. diate disconnection of the high voltage supply, and ozone generation is If the unit is equipped with an integrated P/PID controller, both the stopped. - Page 33 Fault no. Monitored operating Delayed Ozone device reaction Possible cause Remedy condition actuation (§30) Dryer fault: No Air purging and ozone Ozone generation swit- No dryer is ready for dryer ready for opera- generation ched off with post-purge operation: tion when ozone was a) Faulty dryer a) Correct fault requested...
- Page 34 Fault no. Monitored operating Delayed Ozone device reaction Possible cause Remedy condition actuation (§37/38) Dryer fault Regeneration heating Cancellation of regene- a) Regeneration a) Check current con- 1/2: Regeneration phase ration, ozone generation blower current con- sumption, set the blower failure 1M1 continued until fault §30 sumption too high motor protection...
- Page 35 Fault no. Monitored operating Delayed Ozone device reaction Possible cause Remedy condition actuation (§67 / 83 / 99 / 115) Operating mode for Ozone generation swit- Analogue input signal Check the analogue Ozone device fault “Set ozone level” is ched off with post-purge is lower than the mini- input signal (circuit 1) / circuit 2 /...
- Page 36 Fault no. Monitored operating Delayed Ozone device reaction Possible cause Remedy condition actuation (§74 / 90 / 106 / 122) Air purging and ozone a) After 10 se- Ozone generation/air pur- a) Only during start- a) Booster pump Ozone device fault generation conds: High vol- ging switched off without...
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Page 37: Warranty
In accordance with DGUV rule 103-001 (previously GUV-R1/474) the unit must be serviced at least once a year by the BWT after-sales service staff or an authorized BWT partner. BWT assumes no liability in the event that the unit fails or if the capacity becomes deficient due to the incorrect selection/combination of materi- als, floating corrosion products or iron and manganese deposits, or any... -
Page 38: Single-Circuit Units In The Standard Design
12 Technical Data 12.1 Single-circuit units in the standard design * Bewazon Ozone Unit VULW Type Ozone generator Quantity Rated ozone output according to DIN 19627 Ozone concentration as per DIN 19627 g/Nm³ Gas used Air quantity Nm³/h 1.25 2.25 Operating gas pressure bar, rel. - Page 39 Bewazon 12 to 45, front view Complete unit, front view Bewazon Bewazon Bewazon 70 – 140 210 – 280 350 – 700 Complete unit Dryer Control and Dryer Control Ozone piping cabinet ozone piping cabinet cabinet cabinet cabinet...
- Page 40 12.2 Units with a standard design * Bewazon Ozone Unit VULW Type Ozone generator Quantity Rated ozone output according to DIN 19627 Ozone concentration as per DIN 19627 g/m³ Gas used Air quantity Nm³/h 10.5 14.0 17.5 Operating gas pressure bar, rel.
- Page 41 12.3 Units with a standard design * Bewazon Ozone Unit VULW Type Ozone generator Quantity Rated ozone output according to DIN 19627 Ozone concentration as per DIN 19627 g/m³ Gas used Air quantity Nm³/h 21.0 24.5 28.0 31.5 35.0 Operating gas pressure bar, rel.
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Page 42: 12.4 Type Plate
12.4 Type plate The type plate is used to identify your product. Please have the following information available if you have any inquiries about the product. Unit designation Year of construction Serial number Production number PNR Note ► The type plate is a record and must never be altered or removed. -
Page 43: 13 Decommissioning And Disposal
For temporary decommissioning, please contact our customer service: ►The product must not be disposed of with household waste. BWT Wassertechnik GmbH ►At the end of the product's life cycle, ensure that it is properly disposed of or recycled. Industriestrasse 7 D-69198 Schriesheim ►Observe the legal disposal guidelines for the... -
Page 44: Standards And Legal Regulations
Safety and health protection signage at the workplace 14.1 Legal use of ozone The use of ozone is declared by the non-profit organisation EurO3zon, www.euro3zon.org, in accordance with the European Parliament Regulation EU 528/2012. BWT is a member of EurO3zon and is permitted to utilise the rights associated with the declaration. The declaration also includes bromine produced from ozone and bromide. -
Page 45: 15 Log Book
15 Log Book Calendar week The following values should be checked on a daily basis: Date Time Voltage (V) Current consumption (A) Air flow (m³/h) Ozone output (level) Dryer 1 Remaining capacity (%) Remaining time (min) Dryer 2 Remaining capacity (%) Remaining time (min) Excess ozone in water (mg/l) Faults... -
Page 47: Eu Declaration Of Conformity
Directives at the sole responsibility of: est développé, conçu et fabriqué en accord avec les instructions mentionnées ci-dessus sous l’entière responsabilité de: BWT Wassertechnik GmbH, Industriestr. 7, 69198 Schriesheim (WEEE-Reg.-Nr. DE 80428986) Schriesheim, 25/10/2016 Ort, Datum / Place, date / Lieu et date... - Page 48 Further information: BWT Austria GmbH BWT Wassertechnik GmbH Walter-Simmer-Strasse 4 Industriestrasse 7 5310 Mondsee, Austria 69198 Schriesheim, Germany Phone: +43 / 6232 / 5011 0 Phone: +49 / 6203 / 73 0 Fax: +43 / 6232 / 4058 Fax: +49 / 6203 / 73 102 E-mail: office@bwt.at...
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