Votes - 3, Average rating: 3.7 ( )

Manafacture: Bosch File size: 479.52 kb File name: Language of manual:

Preconditions for installation The appliance can only be sold in the countries mentioned in the type plate. 2.1 Regulations Any local by-laws and regulations pertaining to installation and use of gas-heated appliances must be observed. Please refer to the laws that should be attended in South Africa. 2.2 Location The appliance should be sited in a well ventilated room where it will not be exposed to temperatures below freezing. To prevent corrosion, the combustion air must not contain any corrosive substances. Substances classed as corrosion- promoting include halogenated hydrocarbons such as are found in solvents, paints, adhesives, aerosol propellants and various household cleaners. Appropriate measures should be taken where necessary. With the exception of the flue pipe, the surface temperature of the appliance is below 85 °C. No special safety measures are therefore necessary. Site appliance as shown in Fig. 4. Always site appliance in a location not exposed to temperatures below freezing. If this is not possible, the appliance must be switched off and drained whenever there is a risk of freezing. Danger: the appliances are designed to prevent flame reflow. In case you suspect anything unusual in the appliance operation, please shut down gas and water cocks, and call an approved technician to check the local conditions. To prevent flame reflow in outdoor installations please make sure that a wind/rain protection is fitted. To prevent flame reflow in indoor installations please make sure that a wind/rain protection is fitted at the end of the secondary flue. 2.3 Fixing the appliance Remove the temperature control and the output control. Remove the outer case by sliding it forwards and then lifting upwards. Fix the appliance using the sleeves and hooks supplied so that it is vertical. Never allow the appliance to rest against water or gas pipes. 2.4 Water connection It is advisable to drain the appliance before installing it as any dirt or grit inside it could reduce the water flow rate and, in extreme cases, could completely clog up the appliance. Mark hot water and cold water pipes so as to prevent confusion. Connect pipe to automatic water valve using the connecting kit supplied. To prevent problems caused by sudden pressure fluctuations in the water supply, it is advisable to fit a non-return valve to the water outlet. 2.5 Gas connection Take care to ensure dirt is not allowed to enter gas inlet. Make sure that the type of gas specified on the appliance type plate is the same as that supplied by the gas authorities. Select pipe diameter to suit output of instantaneous water heater being installed. Fit gas service cock as close to appliance as possible. Caution: This is a low pressure gas appliance. A SA certified 2.8 kPa low pressure regulator must be fitted. 2.6 Flue It is absolutely essential that all instantaneous water heaters are connected to a suitably dimensioned flue pipe by means of a gas-tight connection. The flue pipe should be made of galvanised iron, aluminium, stainless steel or fibre concrete. Fit as shown in Fig. 4. A flexible or rigid pipe should be used, fit it inside the flue socket. The external diameter of the pipe should be slightly smaller than the dimension specified in the appliances dimensions table. wind/rain protection Fig. 4 2.7 Commissioning Turn on the gas and water cocks and check all connections for leaks. Check flue gas safety device good functioning, proceed as explained in section 3.5. 6 720 607 526 3. Operation and maintenance Sealed parts must not be interfered with. 3.1 Function This water heater is fitted with piezo ignition that provides for easy commissioning. In first place it must dislocate the output control of the off position to the ignition position (see fig. 5). Press in the slide control knob and subsequently press the piezo button. Release the slide control after about 15 seconds, if the pilot flame does not stay alight, repeat the operation. Ignition may not be successful due to the presence of air inside the gas supply pipe, especially if first connected or after long inactive periods. In this case, keep the output control knob fully depressed until the gas pipe has been totally purged. Slide the gas control slide fully to the right to obtain maximum output. Sliding the gas control slide to the left reduces the output. In order to optimise energy consumption, adjust the output control to supply the minimum output required. After following these procedures, ignition of the main burner will automatically take place whenever you turn on a hot water tap, since the pilot burner is permanently alight. When you want to switch off the heater, move the slide control to the far left. After a few seconds the pilot flame will go out. If there is a risk of freezing, switch off the appliance and drain the appliance. Danger: the area in front of the burner can reach very high temperatures, and there is a risk of burning on contact. 3.2 Water temperature control Th...

Download now

Please, enter two numbers from picture: