Domestic Water Heater Z-BIS

Z-BIS
Domestic hot water heater Z-BIS

The Water Heater TERMEN type Z-BIS - is intended for preparation of domestic hot water in the gas or oil boiler rooms. The heater is a substitute for systems based on hot water tanks. This is a unique problem solution of economic supply of domestic hot water from boiler room. The heater has high efficiency, temperature stability, simple service and as an effective protection against the development of bacteria, particularly Legionella More about legionella bacteria.

Features:

• required temperature of heating 70° C,
• ensure a constant baseline temperature of 60° C and 55° C operating hot water parameters without the need to increase water heating to 90° C in the peak hours,
• small size,
• small dimensions, and thus low demand in the area several times more efficient compared to traditional solutions effective protection against the development of bacterial flora of Legionella .
• ensure adequate cooling water return heating below 57° C in order to have a good cooperation with the heater condensing boilers a large demand domestic hot water significantly lower capital expenditures than in the case of the need for multiple-flow-through heaters
• reliability

   Boilers are heating domestic hot water mainly by capacitive vertical heaters DHW equipped with a heating a spiral heating coil. Its requires the use of elevated heating temperatures (up to 90 ° C) to ensure the required temperature DHW at times of peak. A major disadvantage of capacitive heaters is their low energy efficiency. Increasing productivity through completion teams heaters variant proves to be uneconomic due to the high cost of equipment. Our proposed device completely eliminates the nuisance arising from the use of capacitive heaters. New solution is to use a heating systems equipped with high-tech plate heat exchangers, co-operating with ZCWS and stabilizers of suitable pumps: power, the circulation of internal stability in the vessels and installation of circulating DHW.

Used plate exchangers with a high coefficient of heat exchange, allows for significantly increasing the efficiency of systems DHW in the proposed dissolution of technical thermal output can be set between 70 and 780 kW, which corresponds to the production of hot water at 60° C from 1200-13800 l/h. The required temperature of heating is 70° C, and therefore it is necessary to increase the value of 90° C as in the case of capacitive heaters. The small overall dimensions of heat exchangers, and stabilizing it possible to design a series of sets of encapsulated part of a spin-off involving exchangers, stabilizer and internal connections. This allows for building systems of heating hot water on a small area in the boiler room and easy access to and use of heat exchangers, especially for the needs of their periodic review. The Water Heater is composed of eight sets of series like "Z", according to Tab.1, providing high energy efficiency with reduced water heating to a temperature of 70° C, and minimized amounts of water heating system to achieve significant productivity gains in the supply of hot water constant temperature of 60° C. To ensure complete protection against for severe bacterial legionnaires disease.

As is apparent from European research, held by the National Institute of Hygiene in Warsaw, to maintain the required constant output temperature 60° C completely eliminates the possibility of contamination of the installation of hot water legionella bacteria, even without the need for periodic thermal disinfection cwu above 70° C, as in the case of the use of heaters capacity-flow-through is essential. Another important advantage of the hot water heaters is their adaptation to full cooperation with the condensing boilers, high efficiency of technical support. This is because the use of high-plate exchangers to ensure adequate cooling, water heating to an average of 43° C < 57° C, which provides full-round conditions for condensing boilers. Heaters capacity-flow does not meet such conditions.

Due to the need to provide good protection kits including stabilizers and internal pipe corrosion by increasing the TCW = 60° C, the elements of technical equipment within DHW are made entirely from stainless steel type 316L. In addition, it allows you to protect against possible sequestration of bacteria on the internal walls of stabilizer elements and internal pipework. Supply cold water flows through a strainer (16), where it is purified. Then, stirring with water pressed by the circulation pump (3) enters the heat plate exchanger(2). In stabilizer ZCWS (1) the mixing of the heated water with returning from the circulation DHW by the exchanger (2). Boiler controls automatic receiving signal from the temperature sensor located in stabilizer ZCWS. Used circulation pumps (3) and (4) allow to maintain a constant temperature in the vessel (1), eliminating the water temperature stratification, so contributing to the development of legionella bacteria, and consequently ensures the maintenance of the required parameters DHW even at high needs.

Water Heater Z-BIS;

   Z BIS                                  Description of MP module
1. Stabilizer DHW  ZCWS (286l)        11. Air Eliminator            
2. Plate Exchangers                   12. Supply Pump                
3. Internal Circulator Pump           13. Heating Water Supply      
4. Circulator pump                    14. Retur of Heating Water
5. Manomenter                         15. Supply of Cold Water       
6. Temperature Sensor                 16. Strainer          
7. Domestic Hot Water circulation     17. Vessel:
8. Circulation pipe                   - 25l for standard installation system of dometic hot water
9. Safety Valve                       - for non-typical systems
10. Supply of installation              vessel should be selected individual
11. Air Eliminator                    18. Filter

tachnical specifications:

Metering of work parameters.

The electronic measurement system parameters:

1. pressure of DHW before/behind the exchanger,
2. temperature heating power inlet/outlet,
3. temperature of DHW output (kr. No 10) / circulation(kr. No 7),
4. electrical,
5. manometric.