HomeMy WebLinkAboutTDH Calculation WorksheetSimpltified Total ma=c Head (TDH )C'J `rulation Worksheet
Minimum Flow Rate Required: 35 GPM Per Skimmer. ( Required: 1 Skimmer per 800 Square Feet of Surface Area)
Determine Maximum System Flow Rate
1. Calculate Pool Volume 336 4.5 * 7.481 (Gal/Cubic Foot) = 11,311
(Surface Area) (Avg. Depth) (Vol. In Gallons)
2. Determine Preferred Turnover Time in Hours: 6 * 60 ( Min./Hou) = 360
( Hours) (Turnover In Mlns. )
3. Determine Max. Flow Rate 11,311 / 360 + N/A = 35
(Vol. In Gallons) (Turnover InMins.) (Feature Flow) (System Flow Rate)
4. Spa Jets N/A N/A GPM Per Jet = N/A
(No.OfJets) (Jet Flow) (Total Jet Flow)
For single pump pool/spa combo, use the higher of No. 3 or No. 4 in the following calculations for pool & Spa
Determine Maximum System Flow Rate
Branch Piping to be 1.5" Inch to keep velocity at 6 FPS max at 35 GPM Max. System Flow Rate
Trunk Piping to be 2" Inch to keep velocity at 8 FPS max at 35 GPM Max. System Flow Rate
Return Piping to be 1.5" Inch to keep velocity at 10 FPS max at 35 GPM Max. System Flow Rate
Determine Simplified TDH
1. Distance From Pool to Pump in feet 50
TDH Calculation Options
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 calcs.
Maximum Flow Capacity
Of the new or replacement pump
Notes
1. If a variable speed pump is used, use the max. pump flow
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 Al 12.19.8 and be embossed
with that edition approval.
6. Pump, Filter & Heater make and model cannot change, and
equipment location cannot be moved closer to the pool
without submitting a revised plan and TDH calculation
worksheet for approval.
2. Friction Loss ( In Suction Pipe) In 2" Inch Pipe per 1 Foot at 35 GPM = 0.10 ( From Pipe Flow/Fricton Loss Chart)
3. Friction Loss ( In Return Pipe) In 1.5"
4. 50 * 0.10 = 5
( Length of Suction Pipe) (Ft. of Head
5. 50 0.21 - 10.5
( Length of Retum Pipe) ( Ft. of HeacD
Determine Simplified TDH
Pump Selection
Main Drain Cover
Champ-215, 1.5 HP
CMP 25215
Inch Pipe per 1 Foot at 35 . GPM = 0.21
( From Pipe Flow/Fricton Loss Chart)
TDH In Piping 15.5
Filter Loss In TDH ( From Filter Data Sheet) 28.0
Heater Loss In TDH ( From Heater Data Sheet) N/A
Total All Other Losses N/A
TOTAL DYNAMIC HEAD 43.5
Using Pump Curve for TDH & System Flow Rate
( System Flow Rate must not exceed approved cover flow rates)
Note: Minimum System Flow Rate based on minimum flow per skimmer of 35 GPM.
Determine The Number & Type of Required In -Floor Suctions
( Check all that apply) ^a
rhi O� 3.�0 CMP 25215 Suction Outlets At 175 GPM Max. Flow ( See Note 2 )
LLL❑JJJ O O O Suction Outlets At GPM Max. Flow ( See Note 3 )
0 Suction Outlets At GPM Max. Flow ( See Note 4)
ANSIIAPSP--72006 Species three methods for determining the maximum system flow rate.
The following TDH calculation is one of the methods specified.
Date
Contractors Signature
Contractors Printed Name
Contractors Telephone
Total Head In Feet Conversion Chart
Inches Mercury (Vacuum Gauge)
0
2
1 4
8
1 8
1 10
1 12
14
16 1
18
0
0
2.3
1 4.5
.6.8
9
11.3
13.6
15.8
18.1
20.3
1
2.3
4.6
5.8
9.1
11.4
13.6
15.9
18.1
20.4
22.7
2
4.6
6.9
6.1
11.4
13.7
15.9
18.2
20A
22.7
25
3
6.9
9.2
11.5
13.7
16
18.2
20.5
22.8
25
27.3
4
9.2
11.5
13.8
16
18.3
20.5
22.8
25.1
27.3
29.6
5
11.5
13.8
16.1
18.3
20.6
22.8
25.1
27A
29.6
31.9
6
13.9
16.1
18.4
20.6
22.9
25.2
27.4
29.7
31.9
34.2
7
16.2
18.4
1 20.7
23
25.2
Y�32
34.3
36.5
8018.5.
34A
36.6
38.8
�L
36.6
38.9
41.1
Ft
� Il
'?
36.7
38.9
41.2
43.4
41.2
43.5
45.8
2
9
41.3
43.5
45.8
48.1
.3
34.5
36.8
39.1
41.3
43.6
45.9
48.1
50.4
14
323
34.6
1 36.9
39.1
41.4
43.6
45.9
482
50.4
52.7
15
34.6
36.9
392
41A
43.7
.45.9
48.2
50.5
52.7
65
16
37
39.2
41.5
43.7
46
48.3
50.5
52.8
55
57.3
17
39.3
41.5
43.8
46.1
48.3
50.6
528
55.1
57.4
59.6
18
41.6
43.8
46.1
48.4
50.6
52.9
55.1
57A
59.7
61.9
19
43.9
46.2
48.4
50.7
62.9
55.2
57A
59.7
62
64.2
20
46.2
48.5
50.7
53
55.2
57.5
59.8
62
1 64.3
66.5
21
1 48.5
50.8
1 53
55.3
57.6
59.8
621
64.3
66.6
58.9
22
50.8
53.1
55.3
57.6
1 59.9
1 62.1
64.4
66.6
68.9
71.2
23
53.1
55A
57.7
59.9
62.2
64A
66.7
69
71.2
73.5
24
55.4
57.7
60
62.5
64.5
66.7
69
71.3
73.5
75.8
25
57.8
60
62.3
64.5
66.8
69.1
71.3
73.6
75.8
78
26
60.1
62.3
64.6
66.8
69.1
71.4
73.6
75.9
78.1
80.4
27
62.4
64.6'
66.9
69.2
71A
73.7
75.9
782
90.5
82.7
28
64.7
66.9
69.2
71.5
73.7
76
78.2
80.5
82.8
85
29
6714MEAM707P.3
90.5
a2.8
85.1
87.3
30
69.3
1 71.
76.1
.QII
9.6
31
71.6
73.
65.2
.7
89.7
42
32
73.9
762
94.3
33
76.2
78.5
80.7
94.3
96.6
34
78.5
80.8
83.1
85.3
87.6
89.8
921
94A
96.6
'98.9
35
80.9
83.1
85.4
87.6
89.9
92.2
94.4
96.7
98.9
101.2
` NOTE: FIELD TDH MUST BE EQUAL TO OR HIGHER
THAN THE CALCULATED TDH.
"GAGES TO BE INSTALLED AT THE TIME OF FINAL
INSPECTION FOR VERIFICATION.
Flow and Friction Loss Per Foot TERMITE TREATMENT REQUIRED
Schedule 40 PVC Pipe
Velocity - Feet Per Second
Pipe Size
6 FPS
8 FPS
10
FPS
1"
16 GPM
0.14'
21 GPM
0.23'
26 GPM
0.35'
1.5"
37 GPM
0.08'
50 GPM
0.14'
62 GPM
0.21'
2"
62 GPM
0.06'
82 GPM
0.10'
103 GPM
0.16'
2.5"
88 GPM
0.05'
117 GPM
0.09'
146 GPM
0.13'
3"
138 GPM
0.04'
181 GPM
0.07'
227 GPM
0.10'
4"
234 GPM
0.03'
313 GPM
0.05'
1392 GPM
1 0.07
6"
1534 GPM
0.02'
712 GPM
0.03'
ST. Li C?E �V(4___1AX_C_rPjS1P_NUN
REVIEWED'FOR LU
REVIE.�'ED '
DATE
r1 f u.. )�T1 P .RM it� � - B TaPT ON JOB
OR NO INSiPECTIO`i WILL BE 1
SWIMMING POOL SPECIFICATION FOR:
Hernandez Residence
8000 Penny Lane, Fort. Pierce, FL. 34951
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Date
Date: September 23, 2016
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