Panel Radiators For Buderus Panel Radiator models: - Model 21 - Model 22 Applications Manual
Panel Radiator Applications Manual 2 | Technical specifications are subject to change without prior notice Panel Radiator Applications Manual | 11.
Applications manual Panel Radiator Applications Manual Table of Contents 1 General Info 4 2 Safety 5 3 Product Description 6 4 Mounting Guidelines 13 5 Radiator Output Ratings 15 6 Radiator Selection Procedure 17 7 Piping Arrangements 18 |3 Panel Radiator Applications Manual | 11.
Panel Radiator Applications Manual 1. General information 1.1. This manual This application manual is intended for engineers, architects, contractors, and installers. It provides specification on panel radiator and towel rack models, sizing information, and system layout assistance for hydronic heating systems with panel radiators. 1.2.
Applications manual 2. Panel Radiator Applications Manual Safety 2.1. Explanation of symbols Warnings Warnings in this document are identified by a warning triangle printed against a grey background. Keywords at the start of a warning indicate the type and seriousness of the ensuing risk if measures to prevent the risk are not taken.
Panel Radiator Applications Manual 3. Product Description A line of Buderus panel radiators offers a real alternative to conventional baseboard heating. For decades Europeans have enjoyed the unsurpassed comfort and versatility of radiant heat that is more flexible, efficient, and a cleaner alternative to baseboard heating.
Applications manual Panel Radiator Applications Manual Model 22 Buderus Panel Radiators Buderus panel radiators are manufactured from 18 Gauge (0.049”/0.125mm) steel panels. They consist of water filled welded steel panels with convector channels mounted on the back. These layers are combined and arranged into two basic models: model # 21 (width 2.5"), model # 22 (width 4.0").
Panel Radiator Applications Manual Chapter 5 has detailed radiator output ratings in table and graphical form. Radiator Accessories A variety of accessories are available for installation and control of the radiators for different piping arrangements. Mounting Brackets Buderus panel radiators include wall mounting brackets. Rough in instructions and mounting guidelines are presented in chapter 5. Piping Connections Each stocking radiator has 20 mm (approx.
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 Danfoss Thermostatic Head for panel radiators Part no. 83689044 Straight Diverter Valve w/ isolation valves for panel radiators Part no. 80007512 Straight Crossover Valve w/ isolation valves for panel radiators Part no. 82911060 Drain Valve w/ hose bib for panel radiators Part no.
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 flow setter valve mounted on the same side as the water connections of the panel radiator. This valve consists of two part integral components for temperature control and flow balancing. Fig.
Applications manual Panel Radiator Applications Manual Diverter Valves: TO RADIATOR Straight (part number 1016311) and angled (part number 1016312) diverter valves are available for use in a one-pipe system (fig. 4). Shut offs are located on the supply and return branches to the radiator, allowing to isolate the radiator from the piping system so it can be drained and removed without decommissioning the complete heating system.
Panel Radiator Applications Manual Thermostatic Sensor head: Adding a thermostatic sensor head enables room-byroom zone control for optimum comfort and efficiency. It is easily installed on the flow setter valve. Temperature Control: Thermostatic control head is mounted on the flow setter valve of panel radiators and through its capillary expansion controls the flow rate and therefore the heat output of the panel. When using the thermostatic head the flow setter valve needs to be in the N position.
Applications manual 4. Panel Radiator Applications Manual Mounting Guidelines Panel Radiator Installation Model 21 and 22: Wall Mounting Both model 21 and 22 radiators can be wall or floor mounted. All wall brackets must be secured to studs or other supports of sufficient strength for panel radiator weight. Radiators with a length of 71" or less require 2 brackets (1 set); lengths 79” or larger require 2 sets.
Panel Radiator Applications Manual Stud Finished wall Minimum of 4" Bracket 15/16"- 17/16" Bracket Minimum of 4" from finished wall to center of tapings Return Supply 1 2 Panel Radiator 2½" 2 9/16"- 2 11/16" 2" 1³/16" 5½" TOP VIEW Fig.
Applications manual 5.
Panel Radiator Applications Manual If tables 7 and 8 do not match a system‘s requirements, the following guidelines provide means to calculate the effects of ambient room temperature, supply water temperature and temperature drop through the radiator on the radiator output.
Applications manual 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). Solution: Listed output = 7,000 Btu/hr (See Table 9) ∆T = 140 - 70 = 70°F: Conversion Factor = 0.569 (See Table 9) Adjusted output = 0.569 x 7,000 = 3,983 Btu/hr. Comment: The effect of the ambient room temperature is already accounted for in the conversion factors listed in Table 9.
Panel Radiator Applications Manual 7. Piping Arrangements One-Pipe System Options The design of a panel radiator based heating system involves selection of a piping system, pipe sizes, overall design temperature drop, required flow rates and desired type of system control. For trouble-free system operation, do not exceed the flow rates in Table 10. Maximum flow rates & heat carrying capacities Table 10 Figure 11 presents three different one-pipe arrangements.
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 fashion where several one-pipe systems are connected between a common supply and return manifold. Assure adequate flow in all piping systems when using monoflow loops and/or diverter valve loops. Isolation and balancing valves are recommended on each loop for service and flow control.
Panel Radiator Applications Manual Design procedure for One-Pipe System with monoflow tees or diverter valves Table 11 1 Select room sequence 2 Heat load per room 3. Determine linear footage of wall space available for each radiator. 3 (BTU/hr) 4. Compute the required heat load per foot for each room. 4 Available wall space (ft) 5. Select system temperature drop ∆T = 20, 30 or 40°F (11°C, 17°C, 22°C) and maximum supply temperature.
Applications manual Panel Radiator Applications Manual Example: One-Pipe System Layout Design a one-pipe system for a second floor with individual room temperature control: Table 12 Description Heat Load Window Size Hook-up Sequence Bathroom 3,000 1x3 ft wide first Master Bedroom 9,000 2x4 ft wide second Bedroom 2 6,000 1x3 ft wide third Bedroom 3 4,000 1x3 ft wide fourth Solution: Step 1. Complete the Radiator Sizing Sheet to find minimum size radiator. Step 2.
Panel Radiator Applications Manual Two-Pipe System Options Figure 12 illustrates two common two-pipe configurations. Option 4: Two-Pipe Direct Return System 1 2 1 2 1 2 Option 5: Two-Pipe Reverse Return System 1 2 1 2 1 2 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.
Applications manual Panel Radiator Applications Manual Design Procedure for Two-Pipe System 1. Determine individual heat loads. Table 14 1 Select room sequence 2 Heat load per room 3 (BTU/hr) 4 Available wall space (ft) 5 Minimum Required Heat Load per linear ft (BTU/ft) 2. Select desired overall temperature drop of systems (∆T); i.e. 20°F (11°C), 30°F (17°C) or 40°F (22°C). 3. Compute loop flow rate GPM from: GPM = Q / 500 / ∆T 4.
Panel Radiator Applications Manual Example 2: Two-pipe System Lay-out Design and select a two pipe panel radiator system with the following requirements: Table 16: Radiator Option Determination Chart: Two-Pipe System Table 16 Table 15 Description Heat Load Window Size Required BTU/ft Walk-in closet 2,000 none Bathroom 5,000 1x2 ft wide 2,500 Bedroom 1 8,000 2x3 ft wide 1,333 Bedroom 2 10,000 2x4 ft wide 1,250 Master Bedroom 12,000 2x4 ft wide 1,500 Total Load: 37,000 Btu/hr System P
Applications manual Balancing the system Initial settings of flow setter valves will help to ensure proper flow through all radiators. Keep in mind that this is only a starting point and that the system may require further adjustment based on the heating characteristics of the structure. Procedure for setting the flow-setter valves. 1. Identify the largest radiator. In the above example it would be the master bedroom radiator. The setting for this radiator should be “N”.
Panel Radiator Applications Manual Pressure drop curves: Settings on flowsetter 1 2 3 4 5 6 7 N Pressure Drop in Inches H 0 ² 200 100 90 80 70 60 50 40 30 20 10 9 8 7 6 5 4 0.05 0.08 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.9 1 GPM 2 3 Fig. 13 26 | Technical specifications are subject to change without prior notice Panel Radiator Applications Manual | 11.
Applications manual Panel Radiator Applications Manual Diverter Valve % or Radiator Flow 35 45 50 40 30 3 ∆p Head in Feet 2 1 0.50 0.75 1.0 1.5 2.0 Circuit Flow - GPM 2.5 3.0 4.0 Fig. 14 | 27 Panel Radiator Applications Manual | 11.
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. BTC 451001101 H | 11.2019 Bosch Thermotechnology Corp. 65 Grove Street Watertown, MA 02472 Tel.: 866-642-3198 Fax: 603-965-7581 www.boschheatingandcooling.
