| Date |
Text |
| 2018-04-04 17:47:50 | NEW SINGLE FAMILY RESIDENCE (R3) MECHANICAL REVIEW |
| | COMMENTS |
| | CODE: FBC 6TH EDITION (2017). |
| | |
| | 1- REVISE MECHANICAL FLOOR PLAN. THE RETURN AIR CAN NOT |
| | BE LESS THAN 10 FEET FROM THE KITCHEN RANGE. REVISE AS |
| | REQUIRED. SEC. M1602.2 FBC-RESIDENTIAL. |
| | |
| | 2- THE TRANSFER DUCT SIZE SPECIFIED FOR THE MASTER |
| | BEDROOM DOESN'T COMPLY WITH THE BALANCED RETURN AIR |
| | SEC. M1602.3. NEED TO INCLUDE ALL THE SUPPLY AIR |
| | ENTERING THE MASTER SUITE. |
| | |
| | M1602.3 BALANCED RETURN AIR. |
| | RESTRICTED RETURN AIR OCCURS IN BUILDINGS WHEN RETURNS |
| | ARE LOCATED IN CENTRAL ZONES AND CLOSED INTERIOR DOORS |
| | IMPEDE AIR FLOW TO THE RETURN GRILL OR WHEN CEILING |
| | SPACES ARE USED AS RETURN PLENUMS AND FIRE WALLS |
| | RESTRICT AIR MOVEMENT FROM ONE PORTION OF THE RETURN |
| | PLENUM TO ANOTHER. PROVISIONS SHALL BE MADE IN BOTH |
| | RESIDENTIAL AND COMMERCIAL BUILDINGS TO AVOID |
| | UNBALANCED AIR FLOWS AND PRESSURE DIFFERENTIALS CAUSED |
| | BY RESTRICTED RETURN AIR. PRESSURE DIFFERENTIALS ACROSS |
| | CLOSED DOORS WHERE RETURNS ARE CENTRALLY LOCATED SHALL |
| | BE LIMITED TO 0.01 INCH WC (2.5 PASCALS) OR LESS. |
| | PRESSURE DIFFERENTIALS ACROSS FIRE WALLS IN CEILING |
| | SPACE PLENUMS SHALL BE LIMITED TO 0.01 INCH WC (2.5 |
| | PASCALS) BY PROVIDING AIR DUCT PATHWAYS OR AIR TRANSFER |
| | PATHWAYS FROM THE HIGH PRESSURE ZONE TO THE LOW ZONE. |
| | EXCEPTIONS: |
| | (1).TRANSFER DUCTS MAY ACHIEVE THIS BY INCREASING THE |
| | RETURN TRANSFER 11/2 TIMES THE CROSS SECTIONAL AREA |
| | (SQUARE INCHES) OF THE SUPPLY DUCT ENTERING THE ROOM OR |
| | SPACE IT IS SERVING AND THE DOOR HAVING AT LEAST AN |
| | UNRESTRICTED 1-INCH UNDERCUT TO ACHIEVE PROPER RETURN |
| | AIR BALANCE. |
| | (2).TRANSFER GRILLES SHALL USE 50 SQUARE INCHES (OF |
| | GRILLE AREA) TO 100 CFM (OF SUPPLY AIR) FOR SIZING |
| | THROUGH-WALL TRANSFER GRILLES AND USING AN UNRESTRICTED |
| | 1- INCH UNDERCUTTING OF DOORS TO ACHIEVE PROPER RETURN |
| | AIR BALANCE. |
| | (3).HABITABLE ROOMS ONLY SHALL BE REQUIRED TO MEET |
| | THESE REQUIREMENTS FOR PROPER BALANCED RETURN AIR |
| | EXCLUDING BATHROOMS, CLOSETS, STORAGE ROOMS AND LAUNDRY |
| | ROOMS, EXCEPT THAT ALL SUPPLY AIR INTO THE MASTER SUITE |
| | SHALL BE INCLUDED. |
| | |
| | |
| | 3- EQUIPMENT SIZING CALCULATIONS NEED TO BE DONE BASED |
| | ON THE ACTUAL ORIENTATION OF THE BUILDING AS REQUIRED |
| | BY SEC. R403.7.1 FBC-ENERGY CONSERVATION. REVISE AS |
| | REQUIRED. ALSO, IT LOOKS LIKE THE EQUIPMENT SIZING |
| | CALCULATIONS WERE DONE BASED ON THE INFORMATION USED IN |
| | THE ENERGY CALCULATIONS DONE BY THE SAME ENGINEER. |
| | ENERGY CALCULATIONS NEED TO BE REVISED. SEE COMMENTS IN |
| | THE BUILDING REVIEW REGARDING THE ENERGY CALCULATIONS. |
| | REVISE THE EQUIPMENT SIZING CALCULATIONS REFLECTING THE |
| | CORRECT INFORMATION. |
| | |
| | 2- ADDRESS SPECIFIED IN THE EQUIPMENT SIZING |
| | CALCULATIONS IS INCORRECT. REVISE AS REQUIRED TO MATCH |
| | ACTUAL LOCATION OF HOUSE. SEC. 107.2.1 CITY AMENDMENTS. |
| | |
| | 3- ENGINEER SIGNING AND SEALING THE CALCULATIONS TO |
| | PROVIDE HIS INFORMATION AS REQUIRED BY CHAPTER 471 F.S. |
| | WHEN SUBMITTING DOCUMENTS FOR PUBLIC RECORDS. |
| | |
| | 4- ENGINEER TO REVISE THE DUCT HANGING DETAILS TO MATCH |
| | ACTUAL CONSTRUCTION SHOWN ON PLANS. THIS IS NOT WOOD |
| | FRAMED CEILING. SEC. R301.1 FBC-RESIDENTIAL. |
| | |
| | |
| | ****PLEASE PROVIDE RESPONSE LETTER ADDRESSING EACH |
| | COMMENT TO HELP EXPEDITE THE REVIEW PROCESS. |
| | |
| | ****PLEASE INSERT ANY REVISED DRAWING AND REMOVE OLD |
| | DRAWING. SUBMIT OLD DRAWINGS FOR REFERENCE OF ALREADY |
| | REVIEWED DRAWINGS. DON'T STAPLE OLD DRAWINGS TO PLANS. |
| | |
| | |
| | IF YOU HAVE ANY QUESTIONS, PLEASE CONTACT |
| | JULIO GOMEZ |
| | COMMERCIAL COMBINATION PLANS EXAMINER |
| | DEVELOPMENT SERVICES DEPARTMENT |
| | BUILDING DIVISION |
| | (561)805-6712 |
| | [email protected] |
| | |
