REUSE EXISTING DUCTING REPLACE WITH SAD1 REPLACE WITH SAD1 REPLACE WITH SAD1 REPLACE WITH SAD1 NEW AC1 NEW OU1 EXISTING GRILLES AND DUCT TO BE USED FOR SUPPLY AIR. REUSE EXISTING DUCTING REUSE EXISTING DUCTING REUSE EXISTING ATTENUATION 1200x800 NEW AC1 NEW AC1 NEW AC1 450L/s 450L/s 450L/s 450L/s 450L/s 450L/s 450L/s 450L/s NEW OU1 NEW OU1 NEW OU1 9-OFF 600x300 SUPPLY AIR GRILLES WITH OBD'S REUSE EXISTING DUCTING OMIT DIFFUSER MEASURE & COLLATE FLOW RATES FROM ALL EXISTING FRESH AIR OUTLETS AIR-CONDITIONING SCHEDULE ITEM No DESCRIPTION FRESH AIR (L/S) QTY SUPPLY AIR (L/S) ELECTRICAL ISOLATOR REQUIRED AC1 OU1 1200(TOTAL) 433 4 1 PHASE/50/220-240 (32MFA) SUPPLY AIR DIFFUSER SAD1 240 5 CCD 595x595 Ø250 NECK SIZE RICKARD MAKE/MODEL DIFFUSER AND GRILLE SCHEDULE ITEM No DESCRIPTION FLOW RATE (L/S) QTY SIZE & TYPE MAKE CEILING CASSETTE/OUTDOOR UNIT COOLING CAPACITY 12.0kW HEATING CAPACITY 13.5 kW DAIKIN FCQG125F/ RZQSG125LV1 by Approved Rev. Block C, Oxford Gate, 54 Oxford Street, Durbanville 7550 P O Box 1142, Durbanville 7551 Tel: +27 21 975 1718 Fax: +27 21 975 5167 E-Mail: [email protected] Rev. Date Description Client/Employer Drawing No. Designed Drawn Checked Date Revision Scale Project Plan Description Contract No. COPYRIGHT IS VESTED IN ELEMENT CONSULTING ENGINEERS (PTY) LTD IN TERMS OF THE COPYRIGHT ACT (ACT 98 OF 1978). P:\Durbanville\2016\1600571 - Moyo Kirstenbosch\D - Drawings\D8 - Working Drawings\160057-M-B-110.dwg ORIGINAL SIZE A1 20 0 5 10 15 50mm 30 HVAC - GROUND FLOOR Project/DWG No. ARCHITECT REVision Date Received 160057 JJ AUG 2016 1:100 JJ 160057/M/110 A DATE: ISSUED 30/06/17 REV: B FOR TENDER JJ FOR INFORMATION ONLY PROPOSED RENOVATIONS ON EXISTING PREMISES FOR MOYO RESTUARANT KIRSTENBOSCH GARDENS FD - FIRE DAMPER O.B.D. - OPPOSED BLADE DAMPER ELECTRICAL ISOLATOR DOOR GRILLE FRESH AIR PANEL FILTER UNDERCUT DOOR BY 25MM U/C POD SOUND ATTENUATOR DIFFUSER WALL MOUNTED FAN MID WALL SPLIT AC UNIT RECTANGULAR SOUND ATTENUATOR HVAC NOTES: 1. ALL DUCTWORK TO BE MANUFACTURED FROM GALVANISED SHEET METAL AND INSTALLED IN ACCORDANCE WITH SABS 1238 AND SABS 0173. DUCT SIZES INDICATE CLEAR INTERNAL DIMENSION. ROUND DUCTING TO BE OF THE SPIRAL WOUND TYPE UNLESS INDICATED OTHERWISE. 2. SUPPLY AIR DUCTING, INCLUDING FLEXIBLES, TO BE EXTERNALLY INSULATED WITH 25mm FRK UNLESS OTHERWISE SHOWN. RETURN AIR DUCTING AND PLENUM BOXES TO BE EXTERNALLY INSULATED. RETURN AIR FLEXIBLE DUCTING NEED NOT BE INSULATED AND IS TO BE SIZED AND ROUTED NOT TO EXCEED 10Pa PRESSURE DROP. EXPOSED SUPPLY AIR DUCTING WITHIN THE CONDITIONED SPACE NEED NOT BE INSULATED UNLESS SPECIFICALLY REQUESTED. ALL INSULATION IS TO TO BE INSTALLED IN ACCORDANCE WITH SABS 1238. EXTERNAL DUCTWORK SHALL BE INSULATED, USING 25mm THICK RIGID PREFORMED POLY-ISOCYNURATE (PIC) SECTIONS HAVING A DENSITY OF 32Kg/m, AND SHALL BE FINISHED WITH TWO COATS OF POLYESTER RESIN REINFORCED WITH 300g FIBREGLASS CHOPSTRAND. THIS SHALL BE SANDED SMOOTH AND COATED WITH RESIN RICH TOPCOAT PIGMENTED TO THE COLOUR AS SPECIFIED. THE INSULATION SHALL BE INSTALLED SO AS TO PREVENT WATER PONDING ON TOP OF DUCTING. 3. FLEXIBLE DUCTING TO HAVE A CLASS 1 FIRE RATING COMPLYING WITH SABS 0177 PART 3, TO BE EUROFLEX OR EQUAL, AND TO BE MORE THAN 1,5m IN LENGTH. ENDS ARE TO BE SEALED AND FIXED WITH JUBILEE TYPE CLAMPS. 4. DAMPERS ARE TO BE OF THE OPPOSED BLADE TYPE AND FITTED WITH A MANUAL LOCKING QUADRANT. ROUND DUCT DAMPERS ARE TO BE OF THE UNITEX TYPE WITH LOCKING QUADRANTS. 5. FILTERS FOR FRESH AIR DIRECT FROM THE OUTSIDE ARE TO BE OF THE WP77 WASHABLE PANEL TYPE, 50mm THICK, HOUSED IN EASILY ACCESIBLE FILTER FRAME. RETURN AIR FILTERS AND FILTERS FOR FRESH AIR ARE TO BE OF WASHABLE MATT TYPE HOUSED IN A SUITABLE FRAME. TEMPORARY FILTERS ARE TO BE USED DURING TESTING. A SPARE SET OF FILTERS IS TO BE SUPPLIED AT HANDOVER. 6. ALL GRILLES, DIFFUSERS AND LOUVRES ARE TO BE AS SET OUT IN THE SCHEDULES OR EQUAL AND APPROVED. RETURN AIR GRILLES TO BE DUCTED HIDEAWAYS ARE TO BE FITTED WITH PLENUM BOXES WHERE SHOWN THAT ARE SUITABLY SIZED TO ACCOMODATE THE FLEXIBLE DUCT CONNECTION TO THE AC UNIT AND ALLOW FREE FLOW IF DISC VALVES ARE TO BE USED IN LIEU OF EXTRACT GRILLES, THESE ARE TO BE OF THE STEEL TYPE NO SMALLER THAN 150mm DIAMETER. 7. SOUND AND VIBRATION DEADENING EQUIPMENT IS TO BE PROVIDED WHERE INDICATED AND/OR REQUIRED. ALL OUTDOOR SPLIT AND VRV UNITS ARE TO BE ISOLATED FROM THE STRUCTURE BY TICO PADS. THOSE MOUNTED ON THE GROUND ARE TO BE BOLTED TO 300x300 PAVING SLABS OR LOCATED ON SUITABLE AND SIZED CONCRETE PLINTHS AND THOSE MOUNTED ON WALLS, TO BE FIXED TO UNISTRUT BRACKETS. FLEXIBLE COLLARS ARE TO BE USED BETWEEN SUPPLY AIR DUCTING AND DUCTED HIDE-AWAY UNITS WICH ARE TO BE ISOLATED FROM THE STRUCTURE BY RUBBER MOUNTS. SMALL TUBE AND BOX FANS ARE TO BE ISOLATED FROM STRUCTURE BY RUBBER MOUNTS AND FROM THE DUCTWORK BY ACOUSTIC FLEXIBLE DUCTING. ALL OTHER FANS ARE TO BE MOUNTED ON SPRING MOUNTS AND ISOLATED FROM THE DUCTWORK BY FLEXIBLE COLLARS. 8. ALL HVAC EQUIPMENT AND DUCTING TO BE HUNG AS HIGH AS POSSIBLE, THE AC CONTRACTOR IS TO LIASE WITH THE OTHER TRADES ON SITE TO CO-ORDINATE WITH THE OTHER SERVICES. 9. CONDENSATE DRAINS TO BE TRAPPED AT AC INDOOR UNITS AND RUN TO NEAREST FOUL SEWER OR CONNECTION POINT PROVIDED BY THE PLUMBER AT A FALL GREATER THAN 1:80. CONDENSATE DRAINS FROM OUTDOOR UNITS TO BE RUN TO NEAREST FULL-BORE. PIPING TO BE 40mm PVC WITH INSPECTION POINTS WHERE REQUIRED TO ENABLE ACCESS TO ALL PIPEWORK FOR CLEANING. PIPING TO BE SUPPORTED AT 750mm CENTRES. ALL DRAINS TO BE TESTED PRIOR TO COMMISSIONING OF THE AIR CONDITIONING UNITS. HEAT PUMP TYPE UNITS ARE TO BE PROVIDED WITH DRAIN PANS FOR THE OUTDOOR UNITS. 10. REFRIGERATION PIPING TO BE RUN AS SHOWN ON CABLE TRAYS SUPPORTED AT MAX 2000mm CENTRES. PIPE INSULATION TO BE ARMAFLEX AF, AT LEAST 13mm THICK, ON BOTH SUCTION AND LIQUID LINES FOR HEAT PUMPS. ALL INSULATION JOINTS TO BE GLUED, TAPED AND SEALED. THE CABLE TRAY CARRYING THE REFRIGERATION PIPING IS TO BE FIXED AS HIGH AS POSSIBLE UNDER THE HVAC DUCTING AND EQUIPMENT WITHOUT TOUCHING. PIPEWORK EXPOSED TO THE ELEMENTS IS TO BE PROTECTED BY GALVANISED STEEL COVERS. UNPROTECTED CONNECTIONS TO THE OUTDOOR UNITS MAY NOT EXCEED 500mm AND MUST BE PROTECTED WITH CANVASS WRAPPING COATED WITH FOSTER SEALFAS 30-36. 11. ALL SUPPORT STEELWORK, INCLUDING HANGER RODS AND BRACKETS MUST BE GALVANISED. STEELWORK EXPOSED TO THE ELEMENTS MUST BE HOT DIP GALVANISED AFTER ALL FABRICATION WORK IS COMPLETE. FASTENERS ARE TO BE GALVANISED AND WHERE EXPOSED TO THE ELEMENTS ARE TO BE STAINLESS STEEL. FIXING SCREWS FOR GRILLES AND LOUVRES ARE TO BE STAINLESS STEEL. ALL DISSIMILAR METALS ARE TO BE GALVANICALLY ISOLATED FROM EACH OTHER BY NYLON SPACERS. 12. ALL EQUIPMENT, DUCTING AND PIPING EXPOSED TO THE ELEMENTS TO BE PAINTED. ALL OUTDOOR UNIT COILS TO BE TREATED AS PER SPECIFICATION. HVAC LEGEND: CONDENSATE PIPING REFRIGERANT PIPING 02/08/2016 A Scale 1:100 EF FOR TENDER 30/06/2017 B B