MANUAL Brazed Plate Heat Exchanger VAU Thermotech GmbH & Co. KG, Munich, Tel.: +49 (0)89-451027-26, Fax: +49 (0)89-451027-43, E-Mail: [email protected]

Functionality and layout Because of the many different types of brazed plate heat exchangers there is a multitude of possible applications in heating and district heating as well as cooling and industrial technology. The fabrication is realized with modern methods. Embossed stainless steel plates are specially brazed with 99.9 % copper solder. The optimized design of the flow channels on the primary and secondary side allow for an ideal thermodynamic layout. The result is efficient and compact devices with an excellent priceperformance-ratio. Model naming Example: V M 30 / 50 G – S Configuration...

Quick reference tables SYSTEM ISOLATION: boiler / underfloor heating Thermal efficiency kW primary secondary input output input output ° C ° C ° C ° C 90 70 40 50 70 50 35 45 70 50 40 50 60 50 30 45 Type of heat exchanger SOLAR UNIT Glycol 35%: fresh water heating Thermal efficiency kW primary secondary input output input output ° C ° C ° C ° C 70 50 10 60 70 25 10 60 65 40 10 60 Type of heat exchanger VM 15-10 VM 30-20 VM 30-10 SOLAR UNIT Glycol 35%: Swimming Pool Thermal efficiency kW primary secondary input output input output ° C ° C ° C ° C 70 50 20 30 70 25 15 25 65 40 10 20 Type of heat...

Technical Data Series Size Port Fittings Standard with male thread, flat sealing Type size VM 85, flange connectors DN 50 possible VAU Thermotech GmbH & Co. KG, Munich, Tel.: +49 (0)89-451027-26, Fax: +49 (0)89-451027-43, E-Mail: [email protected]

Technical Data Series Size Port Fittings Standard with male thread, flat sealing Type size VM 85, flange connectors DN 50 possible VAU Thermotech GmbH & Co. KG, Munich, Tel.: +49 (0)89-451027-26, Fax: +49 (0)89-451027-43, E-Mail: [email protected]

Thermal insulation Dimensions Series / Size Plate Count Depth x Width x Height (mm) Thermal insulation made of black EPP (Expanded Polypropylene), version with two robust half-shells with self-fastening connections, easy to fit, seal: geometric, self-fastening. Accessories: connectors and consoles Series / Size VM 15 Male thread soldering conn. Male Threaded Solder (sweat) Crimp (Pex) Male Threaded Solder (sweat) Crimp (Pex) Male Threaded Solder (sweat) Crimp (Pex) Male Threaded Solder (sweat) Crimp (Pex) Male Threaded Solder (sweat) Crimp (Pex) Male Threaded Solder (sweat) Crimp (Pex) Type size...

Permitted operational parameters perm. positive oper. pressure perm. oper. temperature plate material solder material type tested according to EU pressure equipment directive 97/23/EG The permissible operational parameters apply to static conditions. Dynamic, constantly changing pressure and temperature strains are to be avoided! General installation and planning notes For detailed notes please see the recent installation, operation and maintenance manual. The mounting position is arbitrary, but due to clogging and venting reasons we recommend the upright position. The process media are to be...

Installation examples Fresh water heating in a buffer loading system with circulation included in the buffer Set fresh water output temperature ≤ 60°C if possible, to reduce the risk of chalking (heating fluid ≤ 70°C) TIC = thermostat TS_ = ‘ON’-gauge TS* = ‘OFF’-gauge Fresh water heating in a buffer loading system with circulation included before the heat exchanger At constant flow-through of the fresh water side the risk of chalking is lower; if necessary include the circulation conduit after the loading pump. Attention: in this case the maximum fresh water volume flow and the circulation volume...

Installation examples System isolation – under floor heating When upgrading system isolation in “old” systems the under floor circuit and boiler circuit must be flushed. Boiler-side control permits low backflow temperatures; use corrosion-proof membrane expansion vessel. TC = thermostat TS* = temperature gauge System isolation – district heating The specific technical connection conditions of the heat deliverer are to be considered. Because of the often high temperature and pressure strains and the changing mode of operation, the installation, operation and service manual have to be observed...

Installation examples Solar energy – heating a buffer TC = thermostat TAZ* = safety temperature limiter or gauge The circuitry is to be adapted to the local conditions. Layout data Anti-freeze (propylene glycol) For flat solar collectors the heat exchanger should be designed for an exchange efficiency of 500 W per square meter collector area (opt. efficiency rate of 65% at global irradiation of 800 W/m²) in connection with fresh water or foodstuff Pure fresh water heating 25% frost-safe up to -10°C 38% frost-safe up to -20°C 47% frost-safe up to -30°C Anti-freeze (ethylene glycol) collector temperature:...

Request form – brazed plate heat exchangers Company: Reference contact: E-Mail: Telephone: Fax: Date of request: Technical data: Efficiency: (for solar plants 0.6 kW/m²) Medium: primary side secondary side Input temperature: Output temp.: Pressure loss: (standard layout for max. pressure loss of 20 kPa) Connection types: Male thread Solder conn. Crimp conn. VAU Thermotech GmbH & Co. KG, Munich, Tel.: +49 (0)89-451027-26, Fax: +49 (0)89-451027-43, E-Mail: [email protected]

Copper brazed plate heat exchanger - type: Connection male thread G 3A

Copper brazed plate heat exchanger - type: Connection male thread G 3/4"

Copper brazed plate heat exchanger - type: Connection male thread G 1

Copper brazed plate heat exchanger - type: Connection male thread G 1

Copper brazed plate heat exchanger - type: Connection male thread G 1 V*

Copper brazed plate heat exchanger - type: Connection male thread G 2" brazing points type plate temperature resistant surrounding temperature testing pressure: