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Branch Joint Selection

Outdoor unit. Branch joint. Outdoor unit. 室外机. Controller. Connection by the branch joint completely. 分支接头. 室外机. 控制器. 纯粹由分支接头的连接. Branch Joint Selection. Connection type of branch joint/ branch header:. After the branch header no more branching is permitted. Model. Branch joint

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Branch Joint Selection

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  1. Outdoor unit Branch joint Outdoor unit 室外机 Controller Connection by the branch joint completely 分支接头 室外机 控制器 纯粹由分支接头的连接 Branch Joint Selection Connection type of branch joint/ branch header:

  2. After the branch header no more branching is permitted

  3. Model Branch joint (2 branch) MDS-Y1 MDS-Y2 MDS-Y3 MDS-Y4 MDS-Y5 Branch header (4 branch) MDS-C1 MDS-C2 MDS-C3 Selection of branch joint / header for MDS

  4. MDS-Y1~Y4 dimensional drawing

  5. MDS-Y5 dimensional drawing

  6. MDS-C1 dimensional drawing

  7. MDS-C2~C3 dimensional drawing

  8. Diameter & thickness requirement for refrigerant copper pipe A-series

  9. Diameter & thickness requirement for refrigerant copper pipe B-series

  10. Piping selection & unit selection Cooling cap. factor

  11. Piping selection & unit selection Heating cap. factor

  12. Example Selection step: 1. Selection of diameter for piping 2. Selection of branch A B C MDS100AR MCC020 MCK020 MCK020 D E MCC015 MCK020 MCC010

  13. Selection step: 1. Piping dia selection 2. Branchselection 1) Main pipe & terminal pipe dia. (Equivalent length<90m) Main pipe：φ15.88 / φ28.6 Terminal pipe : (Same as indoor units） 2) Calculate the downsteam cap. Of point A 4) Same as item 3 B-C Dia: Φ9.52 / φ19.05 A-B-C: 17.4 KW D-E Dia: Φ9.52 / φ15.88 A-D-E: 11.8 KW 3) Select the dia. from the table A-B Dia: Φ12.7 / φ25.4 A-D Dia : Φ9.52 / φ19.05

  14. Selection step: 1. Selection of diameter for piping 2. Selection of branch 1) Select the branch of point A A（Liquid）：MDS-Y2 A（Gas）： MDS-Y1 2)Same as item 1 B （Liquid）：MDS-Y2 C （Liquid）：MDS-Y2 B （Gas）： MDS-Y1 C （Gas）：MDS-Y4 E （Liquid）：MDS-Y2 D （Liquid）：MDS-Y2 E （Gas）：MDS-Y2 D （Gas）：MDS-Y4

  15. Additional Charge of Refrigerant Using liquid tube length to calculate required refrigerant → Add in refrigerant Formula: G=∑ Li* Gi G Refrigerant charge amount Li The each section of liquid tube lengthin all（m） Gi Charge amount per length（g/m）

  16. A B C MDS100AR MCK020 MCC020 MCK020 D E MCC015 MCK020 MCC010 Additional Charge of Refrigerant Complete selection of pipe & branch 60m(5/8) 6m(1/2) 8m 8m 8m 8m 8m 8m 7m(1/4) 7m 7m(1/4)

  17. Additional Charge of Refrigerant Additional charge amount G： G=180*60+120*6+80*55+50*14 =6900 （g）

  18. MDS unit selection software McQuay MDS unit selection software

  19. MDS control & monitoring software

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