| 2018-10-17 08:04:02 | PLAN |
| | REVIEW COMMENTS |
| | |
| | 1ST REVIEW: FBC SIXTH EDITION (2017) |
| | ROBERT MCDOUGAL, CBO |
| | COMMERCIAL COMBINATION PLANS EXAMINER |
| | (561) 805-6714 |
| | [email protected] |
| | |
| | REVISION IS DENIED BY BUILDING |
| | PLEASE ADDRESS THE ITEMS NOTED BELOW: |
| | |
| | 1) FBC-R - M 1602.3 PROVIDE BALANCED AIR RETURN AT THE |
| | MASTER BEDROOM SUITE. THE 10" DIAMETER TRANSFER DUCT |
| | FROM THE MASTER BEDROOM SUITE IS TOO SMALL. BASED ON |
| | FBCR-M1602.3 IT APPEARS THAT A 14" DIAMETER TRANSFER |
| | DUCT IS REQUIRED. SEE CODE REQUIREMENTS BELOW. |
| | 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 1-1/2 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 (25 MM) UNDERCUT TO ACHIEVE PROPER |
| | RETURN AIR BALANCE. |
| | 2. TRANSFER GRILLES SHALL USE 50 SQUARE INCHES (32 258 |
| | MM2) (OF GRILLE AREA) TO 100 CFM (OF SUPPLY AIR) FOR |
| | SIZING THROUGH-THE-WALL TRANSFER GRILLES AND USING AN |
| | UNRESTRICTED 1-INCH (25 MM) 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. |
| | |
| | 2) THE SIGNED AND SEALED PLANS THAT WERE SUBMITTED HAVE |
| | BEEN CHANGED USING WHITEOUT. THIS IS NOT ACCEPTABLE PER |
| | CITY AMENDMENTS 107.2.1.3. HAVE THE ARCHITECT REDRAW |
| | THE PLANS WITH THE CORRECTIONS AND SIGN AND SEAL THEM |
| | AS REQUIRED BY FAC 61G1-16.003 |
| | |
| | |
