2012-07-27 08:37:15 | 2010 FBC |
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| DENIED BY PLUMBING |
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| 1) SHOW COMPLIANCE WITH 2010 FBC ENERGY CONSERVATION |
| SECTION 403.9.4 (3) AND HOUSE BILL 849 WHICH REQUIRE |
| FILTRATION POOL PUMPS 1 HP AND GREATER TO HAVE A |
| DEFAULT CIRCULATION SPEED THAT RESULTS IN A FLOW RATE |
| THAT WILL NOT TURN THE POOL OVER IN LESS THAN SIX HOURS |
| OR 36 GPM WHICHEVER IS GREATER WITH A HIGHER SPEED |
| OVERRIDE CAPABILITY FOR A TEMPORARY PERIOD NOT TO |
| EXCEED ONE NORMAL CYCLE OR 24 HOURS, WHICHEVER IS LESS. |
| THE PLANS SPECIFY A 3.68 HR TURNOVER RATE AT 60 GPM. |
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| 2) SUBMIT THE MANUFACTURER'S SPECIFICATIONS WITH PUMP |
| CURVES FOR THE SPA AND POOL FILTRATION PUMP. THE |
| MAXIMUM FLOW RATES FOR TWO SPEED OR VARIABLE SPEED |
| PUMPS ARE REQUIRED TO BE USED TO DETERMINE THE WATER |
| VELOCITY IN THE POOL PIPING. BASED ON THE INFORMATION |
| ON PENTAIR'S WEBSITE, THE MAXIMUM FLOW RATE FOR THE 3 |
| HP PENTAIR VS-3050 IS 145 GPM AT 56 FT TDH. AT THIS |
| RATE THE WATER VELOCITY IN THE 3" BRANCH PIPING IS 6.58 |
| FT/SEC WHICH EXCEEDS THE 6 FT/SEC WHEN ONE OF THE PAIR |
| IS BLOCKED THAT IS ALLOWED BY ANSI / APSP- 7 2006 |
| SECTION 4.4. THE MAXIMUM FLOW RATE FOR THE 2 HP PENTAIR |
| WHISPERFLO IS 140 GPM AT 39 FT TDH, WHICH RELATES TO A |
| WATER VELOCITY OF 6.36 FT/SEC IN THE 3" PIPE. THIS |
| EXCEEDS THE 6 FT/SEC ALLOWED IN THE BRANCH PIPING. |
| PLEASE CORRECT. NOTE: ONLY THE BRANCH PIPING AT THE |
| MAIN DRAINS DOES NOT COMPLY, THE REST OF THE SUCTION |
| PIPING WILL COMPLY. IF CHANNEL DRAINS ARE USED IN LIEU |
| OF THE TWO MAIN DRAINS, THERE IS NO BRANCH PIPING |
| REQUIREMENT. |
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| ROBERT MCDOUGAL |
| BLDG. PLAN REVIEW |
| (561)805-6714 |
| [email protected] |