Description

Water heaters are designed for room floor installation to provide hot water for large family homes. The heated water should correspond to the normative documents for domestic water and, in particular its composition of chlorides should be less than 250 mg/l, and the electrical conductivity should be more than 100 µS/cm with pH within limits of 6.5-8 for the water heaters with enameled water tanks (containers), and less than 200 µS/cm for the water heaters with chrome-nickel steel water tanks. The water pressure in the water supply system should be higher than 0.1 MPa and lower than 0.5 MPa. If the water pressure is higher than 0.5 MPa – please refer to the instructions in the section for connection to the water supply network. Special water heater models are in production (for regions where local regulations require) with design to work in plumbing pressure up to 1 MPa. The water containers of the appliances are properly protected against corrosion by using high quality enameled coating, or are made of high-range alloy chrome-nickel (corrosion resistant) steel. Water tanks with enameled coating are equipped with built-in anodes made of special alloy providing additional protection. The heat isolation is hard (molded) polyurethane or polyester with an outer shell. The basic models and modifications are shown on Fig. 1 and 2, while their specifications are listed in Table 1. Please refer to all figures and tables in this manual. The water heater models and their modifications are marked with letters and numbers as follow: The first two letters and following five digits indicate the device base model. џ „F“ – installation on the floor. џ „V“ – mounting position – vertical . џ xxx – the first three digits after the letter “V”, are code of the water heater tank’s capacity range. џ yy – the next two digits are code of the device diameter. !Letters after the base model are: џ „I“ – the water container of the appliance is made of chromenickel steel alloy. џ „F“ – The thermal insulation of the appliance is made of polyester. џ „S“, „S2“, „S21“, „SМ“, „D1“, „D2“ – the water container is equipped with built-in one or two heat exchangers for water heating from an alternative heat source (local water heating, solar collector and any other similar sources). Fig. 1 for “S” and “S2“, Fig. 2 for „S21“, Fig. 1a for “SM”, Fig. 1b for “D1”, Fig. 2a for „D2“. џ „E“ – digital control unit for the heater or for both – the heater and the devices for heat transfer fluid flow control. These appliances are accompanied by additional instructions describing how to use the digital control unit. !The power for water heaters for ranges up to 200 is up to 3 kW, for ranges 300-500 – up to 9 kW and up to 12 kW for the rest. Produced as well are water heaters with heat exchangers which do not have electric heaters. !The exact and complete model number, nominal operating parameters and serial number of purchased water heater are marked on its plate affixed on its body. !In order to ease transportation the water heaters are attached to individual transport pallets.