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Summary of Contents for Buderus 21
- Page 1 Panel Radiators Applications Manual For Buderus Panel Radiator models: - Model 21 - Model 22...
- Page 2 Panel Radiator Applications Manual Panel Radiator Applications Manual | 03.2019 Technical specifi cations are subject to change without prior notice...
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Page 3: Table Of Contents
Applications manual Panel Radiator Applications Manual Table of Contents 1 General Info 2 Safety 3 Product Description 4 Mounting Guidelines 5 Radiator Output Ratings 6 Radiator Selection Procedure 7 Piping Arrangements Panel Radiator Applications Manual | 03.2019 Technical specifi cations are subject to change without prior notice... -
Page 4: General Info
This manual describes the basic operation of the Buderus panel radiators, thermostatic controls and piping accessories. It also provides rough in dimensions and installation procedures. Radiator heating capacities are listed by model, height and length and are based on diff... -
Page 5: Safety
2.2. Please follow these instructions Only use original Buderus spare parts. Damage caused by the use of spare parts other than original Buderus spare parts is not covered by the product warranty. 2.3. Tools, materials and accessories For the installation of panel radiators, you will need standard tools used for central heating, boiler and DHW water systems. -
Page 6: Product Description
Panel Radiator Applications Manual Product Description A line of Buderus panel radiators off ers a real alternative Buderus Panel radiators are stocked in several heights to conventional baseboard heating. For decades and lengths, and in two widths. Europeans have enjoyed the unsurpassed comfort and versatility of radiant heat that is more fl... - Page 7 7-750-100-606 12 x 24 x 4 300 x 600 x 102 22.63 10.26 0.67 2.52 model # 21 (width 2.5"), model # 22 (width 4.0"). 7-750-100-609 12 x 36 x 4 300 x 900 x 102 33.94 15.39 1.00 3.78...
- Page 8 Table 3). These fi ttings are normally secured to the piping Mounting Brackets connection on the radiator. When diverter or shutoff valves are used, the compression fi ttings mount on the Buderus panel radiators include wall mounting brackets. valve. Rough in instructions and mounting guidelines are presented in chapter 5.
- Page 9 Applications manual Panel Radiator Applications Manual Additional accessories are available that help with the installation of the panel radiator as well as the application in which it is installed. Part no. 7738006264 Part no. 82911060 Danfoss Drain Valve w/ Thermostatic Head hose bib for panel radiators for panel radiators...
- Page 10 Panel Radiator Applications Manual Panel radiator accessories Table 4 Floor Brackets Part Number Optional covers for brackets 81606400 Escutions HRDA50 Flow Setter Valve: Each radiator is equipped with a fl ow setter valve mounted on the same side as the water connections of the panel radiator.
- Page 11 Applications manual Panel Radiator Applications Manual Diverter Valves: FROM RADIATOR TO RADIATOR Straight (part number 1016311) and angled (part number 1016312) diverter valves are available for use in a one-pipe system (fi g. 4). Shut off s are located on the supply and ISOLATION return branches to the radiator, allowing to isolate the VALVES...
- Page 12 Panel Radiator Applications Manual Thermostatic Sensor head: Adding a thermostatic sensor head enables room-by- room zone control for optimum comfort and effi ciency. It is easily installed on the fl ow setter valve. Temperature Control: Thermostatic control head is mounted on the fl ow setter valve of panel radiators and through its capillary expansion controls the fl...
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Page 13: Mounting Guidelines
3 5/16" - 3 7/16" from the fi nished mounting wall. The center of the return piping should be at least 5 1/2" from the fi nished side wall for both Model 21 and 22 radiators. If the thermostatic sensor head is not installed, this can be reduced to 3 1/2". - Page 14 Supply Panel Radiator 2½" 2" 1³/ " 5½" TOP VIEW Fig. 8 Model 21 Panel Radiator Rough in Dimensions in inches for wall mounting Stud Finished wall Minimum of Minimum of 3 5/16"- 3 7/16" Bracket Bracket 15/16"- 17/16"...
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Page 15: Radiator Output Ratings
2456 12" x 59" x 4" 300 x 1500 x 102 5898 4423 3070 Tables 7 and 8 show the outputs of Model 21 and 22 12" x 71" x 4" 300 x 1800 x 102 7078 5308 3684 in-stock radiators at four diff erent water temperatures. - Page 16 Panel Radiator Applications Manual If tables 7 and 8 do not match a system‘s requirements, the following guidelines provide means to calculate the eff ects of ambient room temperature, supply water temperature and temperature drop through the radiator on the radiator output. Ambient room temperature eff...
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Page 17: Radiator Selection Procedure
Applications manual Panel Radiator Applications Manual Radiator Selection Procedure Example: Compute the output of a Model 21 20” x 59” radiator with an average water temperature of 140°F (60°C) in the radiator and a room temperature of 70°F (21°C). Several factors must be considered in the selection of a panel radiator. -
Page 18: Piping Arrangements
Panel Radiator Applications Manual Piping Arrangements One-Pipe System Options Figure 11 presents three diff erent one-pipe The design of a panel radiator based heating system arrangements. In any one-pipe system, a single pipe involves selection of a piping system, pipe sizes, overall connects all radiators together. - Page 19 Applications manual Panel Radiator Applications Manual Option 3: Individual Supply and Return System (home run). Options 2 and 3 above can be installed in a multiple loop following the guidelines in Table 10. Refer to the Pressure fashion where several one-pipe systems are connected Drop Curves (Fig.
- Page 20 Panel Radiator Applications Manual Table 11 Design procedure for One-Pipe System with Select Room 1 Room 2 Room 3 Room 4 monofl ow tees or diverter valves room sequence 1. Select radiator hook-up sequence. Heat load 2. Determine individual heat loads. per room 3.
- Page 21 (10°C) ∆T curves if designing for a 20 to 30°F (11 to 17°C) temperature drop, use the 36°F (20°C) ∆T curves if designing for a 40°F (22°C) drop. | 21 Panel Radiator Applications Manual | 03.2019 Technical specifi cations are subject to change without prior notice...
- Page 22 Panel Radiator Applications Manual Two-Pipe System Options Figure 12 illustrates two common two-pipe confi gurations. Option 4: Two-Pipe Direct Return System Option 5: Two-Pipe Reverse Return System Pressure Bypass Valve DISCLAIMER: Application drawings in this manual are conceptual only and do not purport to address all design, installation, code, or safety considerations. The diagrams in this manual are for reference use by code officials, designers and licensed installers.
- Page 23 Applications manual Panel Radiator Applications Manual Design Procedure for Two-Pipe System Table 14 1. Determine individual heat loads. Select Room 1 Room 2 Room 3 Room 4 room 2. Select desired overall temperature drop of systems sequence (∆T); i.e. 20°F (11°C), 30°F (17°C) or 40°F (22°C). Heat load 3.
- Page 24 Panel Radiator Applications Manual Example 2: Two-pipe System Lay-out Table 16: Radiator Option Determination Chart: Two-Pipe Design and select a two pipe panel radiator system with System the following requirements: Table 16 Table 15 Descrip- Heat BTU/ Selected No. and Flow- tion Load...
- Page 25 Applications manual Panel Radiator Applications Manual Balancing the system Piping Lay-out Suggestions: 1. For small systems, use one-pipe system with Initial settings of flow setter valves will help to monofl ow tees or diverter valves. ensure proper fl ow through all radiators. Keep in mind that this is only a starting point and that the Btu’s per loop: system may require further adjustment based on...
- Page 26 Panel Radiator Applications Manual Pressure drop curves: Settings on flowsetter 0.05 0.08 0.1 0.3 0.4 0.5 0.6 0.7 0.9 1 Fig. 13 2 6 | Panel Radiator Applications Manual | 03.2019 Technical specifi cations are subject to change without prior notice...
- Page 27 Applications manual Panel Radiator Applications Manual Diverter Valve % or Radiator Flow 0.50 0.75 Circuit Flow - GPM Fig. 14 | 27 Panel Radiator Applications Manual | 03.2019 Technical specifi cations are subject to change without prior notice...
- Page 28 65 Grove Street Watertown, MA 02472 Tel.: 866-642-3198 Fax: 603-965-7581 www.boschheatingandcooling.com Products manufactured by: Bosch Thermotechnik GmbH Sophienstrasse 30-32 D-35576 Wetzlar www.buderus.de Bosch Thermotechnology Corp. reserves the right to make changes without notice due to continuing engineering and technological advances.
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