Related Manuals for BRAVILOR BONAMAT Aurora SINGLE LOW
Summary of Contents for BRAVILOR BONAMAT Aurora SINGLE LOW
- Page 1 OPERATING PRINCIPLE Thermal brewers Aurora SINGLE LOW (SGL) TWIN LOW (TWL) SINGLE HIGH (SGH) TWIN HIGH (TWH)
- Page 2 All rights reserved. No part of this document may be copied and/or published by means of printing, photocopy, microfilm or by any other means without the prior written consent of the manufacturer. This also applies to the included drawings and/or diagrams.
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Page 3: Table Of Contents
Table of Contents General operation ............1 Water dosing system . - Page 4 Table of Figures Fig.1 Water dosing system ........... .2 Fig.2 Hot water outlet .
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Page 5: General Operation
General operation The machine works according to a pump system developed by Bravilor Bonamat. This system has the following advantages: • Many of the parts ensuring correct dosing of the water are in a cold water circuit. This minimises the main cause of failures, being the forming of scale on the dosing valves. -
Page 6: Water Dosing System
Water dosing system After having started a selection, the pump motor is controlled with a regulated time and speed. The pump rotor moves a certain amount of cold water from the cold water reservoir to the bottom of the boiler. This pushes the hot water in the boiler up towards the water selector. This selector chooses its position by means of a rotating movement. -
Page 7: Float Tank
The water dosing system consists of the following main components: 1. Magnetic valve 2. Hot water outlet (Fig.2) 2a. Hot water outlet 2b. Tap including switch 2c. Hot water valve 3. Float tank (Fig.3) 3a. Float 3b. Pump motor 3c. Pump rotor 3d. -
Page 8: Start Up
Start up Initialisation The machine is switched on using the main switch. The display shows the version number of the software downloaded in the factory and after this the display will show all symbols and “init” to indicate that the machine starts initialisation. During this initialisation, the machine will run a standard routine to make sure that a number of essential components have been connected and are operating correctly. -
Page 9: Boiling Point Determination Programme
Boiling point determination programme Hot water may come out of the filter pan while running this programme. The machine automatically only runs the boiling point determination programme when using the machine for the first time. The boiling point of the water is now determined. This is necessary because the boiling point depends on the local atmospheric pressure. -
Page 10: Heating
Heating Now the system has been completely filled with water, a relays will enable the element. The machine has been provided with a smart boiler routine, which basically works as follows: • The lower temperature sensor measures the current temperature of the water. The temperature sensor makes sure that the water in the boiler is heated to the desired final temperature. -
Page 11: Encoder
The volume of moved liquid (output) is mainly determined by the time and speed of the pump motor. The software controls the time that the motor is on and this is very precise. The rotational speed of the motor is measured by an active revolution counter. Fig.9 shows that a disc has been mounted on the shaft of the pump motor (A=Encoder). -
Page 12: Fig.13 Position For Coffee
Fig.13 Position for coffee Operation of the water selector when starting to make coffee: • When a selection is made, the water selector motor is controlled. When the hall sensor (Fig.13, A) detects the magnets that are close together (Fig.13, B), the position for dosing on the coffee is determined. -
Page 13: Extract
Extract The water that is pumped through the spray head falls on the coffee. This water seeps down through the coffee and the filter paper. The basket in the filter pan prevents the filter paper from sticking to the bottom and the coffee from flowing to the outlet. The extraction of the coffee takes place during this process. -
Page 14: Recipes
Recipes With the Aurora it is possible to create own recipes for the extraction and strength of the coffee to your own taste. For example, with these recipes you can vary the contact time, the strength and the temperature of the coffee. It is also possible to vary the dosing of water in different quantities and phases with various intervals. -
Page 15: Recipe Build-Up
Recipe build-up Below an example is given of how a recipe can be built up: Fig.15 Recipe build-up The above-mentioned recipe can be fully calculated. See below for an example: • The coffee volume has been set to 2000ml. • The quantity of lost water has been set to 10% (the percentage may differ for each coffee type or the ground of the coffee). -
Page 16: Programme Recipes
Programme recipes There are 2 programmes for programming recipes, being build and program. BUILD: When using “build”, you can enter all variables yourself. When all 3 volumes have been programmed, the recipe is saved. Now coffee can be made using this recipe and you can determine if you like the recipe. After the recipe has been saved, it can be adjusted in the programme “change recipe”. -
Page 17: Rfid
RFID RFID (Radio Frequency identification) is a wireless system that uses radio frequency and electromagnetic fields to transfer data, without using any wires or batteries. Settings and recipes can be transferred from a machine to an RFID card and vice versa. Recipes and/or settings can be transferred and recipes can be overwritten. -
Page 18: Hot Water Tap
Hot water tap The Aurora has a hot water tap (Fig.17). This tap can be found on the front side of the machine. Fig.17 Hot water tap Fig.18 Hot water hose connections The hot water tap has been connected to the same boiler as used for the coffee. With a Twin version this will be connected to the left boiler. -
Page 19: Descaling Signal
Descaling signal set based on the hardness of the water Bravilor Bonamat BV recommends to correctly set this setting using the table in the manual or the table given below (Fig.19). The correct setting is to be set, because this can prevent excessive scaling on parts as much as possible. -
Page 20: Switched-Mode Power Supply
Switched-mode power supply The input voltage (mains voltage) supplied to the switched-mode power supply (Fig.21) may vary between 115VAC and 240VAC. The output voltage of the switched-mode power supply is about 24VDC and it is independent of the input voltage as long as this is between 115VAC and 240VAC. Operation of switched-mode power supply The input voltage (mains voltage) is an alternating voltage, which is rectified and smoothed by the switched-mode power supply. -
Page 21: 10. Operating System
10. Operating system The operating system consists of a: • Touch screen display • Mainboard 10.1 Touch screen display The touch screen display (Fig.22) is found on the front side of the machine and is connected to the mainboard using a flat cable. The machine will be operated using the touch screen display. -
Page 22: 11. Hardware Protection
11. Hardware protection The machine has a number of so-called hardware protections. These protections prevent dangerous situations from occurring, such as overheating and/or water in the machine. 11.1 Overflow protection This protection is found in the float tank and ensures that excess water caused by a too high water level flows to the bottom of the machine through the overflow and hose. -
Page 23: 12. Software Protection
12. Software protection The machine is equipped with software protection; the software monitors all the input and output of the machine throughout the whole process. If situations occur that are not allowed, the software intervenes. As a result, the machine switches off and an error message appears on the display. - Page 24 Error 9. Pump motor rotates too slow or does not rotate at all: • The pump motor is rotating during machine start−up and during use. If the light sensor detects none or too little pulses, the machine will switch off and ’Error 9’ is displayed. Error 10.
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Page 25: 13. Programming
13. Programming The programming of the Aurora has 2 levels. A user menu and a chief menu. 13.1 User menu In order to get access to the user menu, press the M key in the display and hold it for 1 second. The following options will now be accessible: Section Description... -
Page 26: Chief Menu
13.2 Chief menu In order to get access to the chief menu, press the M key and the volume key in the display and hold them for 1 second. The following options and sub-options will now be accessible: Section Description Info: Various data concerning version numbers. - Page 27 Section Description Cleaning settings: Cleaning setting. 5.4.1 Counter (days): Set after how many days the machine must generate a message for cleaning. Language settings: Set the language (if possible to be downloaded using an RFID card when this language is available). Unit settings: Volume and temperature setting.
- Page 28 By entering the wrong settings, the mains can be overloaded and this can even cause a fire. Bravilor Bonamat BV does not accept any liability for any damage and/or injury caused by entering the wrong settings. 6.5.3 Reset all counters: Reset all counter positions.
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