| Date |
Text |
| 2015-02-05 08:06:11 | PLAN REVIEW COMMENTS |
| | |
| | 1ST REVIEW: FBC 2010 |
| | ROBERT MCDOUGAL, CBO |
| | COMMERCIAL COMBINATION PLANS EXAMINER |
| | (561) 805-6714 |
| | [email protected] |
| | |
| | DENIED BY MECHANICAL |
| | PLEASE ADDRESS THE ITEMS NOTED BELOW: |
| | |
| | 1) FBCR-M1602.2 OUTDOOR AND RETURN AIR FOR A FORCED-AIR |
| | HEATING OR COOLING SYSTEM SHALL NOT BE TAKEN FROM THE |
| | FOLLOWING LOCATIONS: 4. A CLOSET, BATHROOM, TOILET |
| | ROOM, KITCHEN, GARAGE, MECHANICAL ROOM, BOILER ROOM, |
| | FURNACE ROOM, UNCONDITIONED ATTIC OR OTHER DWELLING |
| | UNIT. RETURN CAN NOT BE IN THE KITCHEN WALL. |
| | |
| | 2) FBCR- M1602.4 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. 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 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-THE-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. |
| | THE TRANSFER GRILLES ARE TOO SMALL IN THE MASTER |
| | BEDROOM (250 CFM = 125 SQIN OF GRILL AREA) , BEDROOM 2 |
| | (140 CFM = 70 SQIN OF GRILL AREA) AND BEDROOM 4 (125 |
| | CFM = 62.5 SQIN OF GRILL AREA). |
| | |
| | 4) THERE IS WHAT APPEARS TO BE A RETURN WITH 20 CFM |
| | SHOWN IN THE HALLWAY IN FRONT OF THE LINEN CLOSEST. |
| | PLEASE CLARIFY. FBC 107.2.1 |
