Loading...
1889 Atlantic Blvd POOL24-0025 3315 Bannwart Hydrualics Form - 2024-05-31Simplified  Total  Dynamic  Head  (TDH)  Calculation  Worksheet   Determine  Maximum  System  Flow  Rate   Minimum  Flow  Rate  Required:  35gpm  per  skimmer  (required:  1  skimmer  per  800  sq  ft  of  surf.  area)   1.Calculate  Pool  Volume  _____________X  ___________  X    7.48    (gal./cubic  foot)  =  ____________________ (Surface  Area)  (Avg  Depth)              (Volume  in  Gallons)   2.Determine  preferred  Turnover  Time  in  Hours:  __________  X  60  (min  /  hour)  =_________________ (Hours)                        (Turnover  in  min)   3.Determine  Max  Flow  Rate  ________________  /  ________________  +  ______________  =  ___________________ (Volume  in  Gallons)                        (Turnover  in  Min)                    (Pool  Flow  Rate)        (System  Flow  Rate)   4.Spa  Jets:  __________  X  ____________  GPM  per  jet  =  ____________________  flow  rate (No  of  Jets)  (Jet  Flow)  (Total  Jet  Flow  Rate)   (For Single Pump pool/spa combo, use the higher of No. 3 or No. 4 in the following calculations for the pool & Spa) Determine  Pipe  Sizes:   Suction Branch to be _______ inch to keep velocity @ 6 fps max. at _____ gpm Maximum System Flow Rate Suction Piping to be _______ inch to keep velocity @ 8 fps max. at _____ gpm Maximum System Flow Rate Return Piping to be _______ inch to keep velocity @ 8 fps max. at _____ gpm Maximum System Flow Rate Determine Simplified TDH: 1.Distance from pool, to pump in Ft:___________ 2.Friction loss (in suction pipe) in _______ inch pipe per 1 t. @ gpm = _____(from pipe flow/friction loss chart) 3.Friction loss (in return pipe) in ________ inch pipe per 1 t. @ gpm = _____(from pipe flow/friction loss chart) 4.________________ X ___________________ = ______________ (Length of Suction Pipe) (Ft of head/1 ft of Pipe) (TDH Suction Pipe) 5.________________ X ___________________ = ______________ (Ft of head/1 ft of Pipe)(Length of Return Pipe) (TDH Suction Pipe) Flow and Friction Loss Per Foot (Schedule 40 pvc Pipe) Velocity  -­‐  Feet  Per  Second   Pipe  Size  6  FPS  8  FPS   1.5"  37  gpm  0.08'  50  gpm  .14'   2"  62gpm  0.06'  82  gpm  .10"   2.5"  88  gpm  0.05'  117  gpm  .08'   3"  136  gpm  0.04'  181  gpm  .07'   Selected  Pump  and  Main  Drain  Cover:   Pump  selection  ___________________________________            using  pump  curve  for  TDH  &  System  Flow  Rate   (Pump  model  and  size  in  HP)   Main  Drain  Cover_________________________________          (System  Flow  Rate  must  not  exceed  approved  cover  flow  rates)   (model  )   Notes:  Minimum  system  flow  based  on  minimum  flow  per  skimmer  of  35  gpm.   Determine  the  Number  and  Type  of  Required  In-­‐floor  Suction  Outlets:   (Check  all  that  apply)   ☐¤←3’ → ¤ ____________ suction outlets @ ____________gpm max. flow (see note 2) ☐¤ ¤ ¤ _____________ suction outlets @ ____________gpm max. flow (see note 3) ☐_____________ channel drain @ ____________gpm w/ _______ports (see note 4) ANSI/APSP 5&7,  2013  Specifies  three  methods  for  determining  the  maximum  system  flow  rate.     The  following  simplified  TDH  calculation  is  one  of  the  methods  specified.                            TDH  in  Piping______________              Filter  loss  in  TDH  (from  filter  data  sheet)______________   Heater  loss  in  TDH  (from  heater  data  sheet)______________                          Total  all  other  loss______________        Total  Dynamic  Head  (TDH)______________   Velocity  -­‐  Feet  Per  Second   Pipe  Size  6  FPS  8  FPS   1.5"  37  gpm  0.08'  50  gpm  .14'   2"  62  gpm  0.06'  82    gpm  .10"   2.5"  88  gpm  0.05'  117  gpm  .08'   3"  136  gpm  0.04'  181  gpm  .07'   4"  234  gpm  0.03'  313  gpm  .05'   6"  534  gpm  0.02'  712  gpm  .03'   TDH  Calculation  Options   (For  each  Pump)   Check  one   ☐Simplified  Total  Dynamic  Head  (STDH) Complete  STDH  Worksheet  –  Fill  in  all  blanks ☐Total  Dynamic  Head  (TDH) Complete  Program  or  other  calcs.  Fill  in required  blanks  on  worksheet  &  attach calculations ☐Maximum  Flow  Capacity of  the  new  or  replacement  pump Notes:   1.If  a  variable  speed  pump  is  used,  use  the  max pump  low  in  calculations 2.For  side  wall  drains,  use  appropriate  side  wall drain  flow  as  published  by  manufacturer 3.Insert  manufacturer’s  name  and  approved maximum  flow 4.See  installation  instructions  for  number  of ports  to  be  used 5.In-­‐Floor  suction  outlet  cover/grate  must conform  to  most  recent  edition  of  ASME/ANSI A112.19.8  and  be  embossed  with  that  edition approval 6.Pump,  Filter  and  Heater  make  and  model cannot  change,  and  equipment  location  cannot be  move  closer  the  pool  without  submitting  a revised  plan  and  TDH  calculation  worksheet  for approval Flow and Friction Loss Per Foot (Schedule 40 pvc Pipe) ANSI/APSP/ICC  Worksheet   Swimming Pool Energy Efficiency Compliance Information Note: These Requirements Apply ONLY to the Filtration Pump Maximum Filtration Flow Rate Calcutlations Pool Water Voume______÷ 360 =______ gpm = filtration flow rate Is there an Auxiliary load on the filtration pump? Yes___ NO____ If so, what is the auxiliary flow rate _______gpm Maximum Flow Rate ______gpm (maximum auxiliary pool loads or the filtration flow rate, whichever is greater. The pool filtration flow rate shall not be greater than the rate needed to turn over the pool water volume in 6 hours or 36 gpm whichever is greater. This means that for pools of less than 13000 gallons, the pump shall be sized to have a flow rate of 36 gpm or less. Suction Pipe size @ 8 fps ________inch Return Pipe size @ 8 fps ________inch Filter Factors: (Cartridge .375) or (D.E 2) or (Sand 15) ____________÷ _____________=___________________ (flow rate) (filter factor) (minimum filter size) Filter Make/Size __________________________________ Backwash valve? Yes_____ No______ (if yes, must be 2 inch min) Pump Selection from APSP database on Curve A (less than 17000 gallons) or C (greater than 17000 gallons) (circle one) Model_________________________________________ Flow Rate (low speed)______gpm @ ______rpm Flow Rate (high speed) ______gpm @ ____ rpm Date   _____________________________________________________   Contractors  Signature   _____________________________________________________   Print  Name   _____________________________________________________   Certification  Number   _____________________________________________________   Telephone  Number   Pump Controls Standard time clock / 2 speed time clock _____or other ______ Heater Model _______________________________________ Notes: suction piping in front of pump inlet must be 4 pipe diameters in length. Must have 18” of straight pipe after the filter for solar. Swimming  Pool  Specifications  for:   Owner:____________________________________________________________   Address___________________________________________________________   City,  State,  Zip____________________________________________________   ____________________________________________________________________   _____________________________________________________________________   _____________________________________________________________________   _____________________________________________________________________   _____________________________________________________________________ _____________________________________________________________________