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HomeMy WebLinkAboutM-4 HVAC GENERAL NOTESREu Su DATE APPLICABLE CODES AND ORDINANCES: Provide all materials and equipment and perform all labor required to install complete and operable mechanical systems as indicated on the drawings, as specified and as required by code. Entire installation shall be in strict accordance with applicable codes and ordinances. Secure and pay for all required permits. Provide a minimum of 10'-0' between exhaust outlets, plumbing vents and all outside air makes. Provide a minimum of 3'-0' between exhaust outlets and operable windows or tloors Contractor shall not locate any duct or piping directly over any electrical panel, switchgear, transformer, etc. Coordinate locations of ducts and piping with the Electrical Contractor 0 avoid these conflicts. AS -BUILT DRAWINGS: Contractor shall maintain a set of drawings that document field changes to these drawings, and shall submit them to the Nchitect/Engineer as part of the project close out. ARCHITECT: Contractor shall be guided by the Architect's reflected ceiling plan fa exact location of diffusers, registers and grilles unless otherwise noted. Coordinate diffuser, register, and grille locations with architectural reflected ceiling plans, lighting, and other ceiling items and make minor duct modifications to suit. Exterior louvers are indicated for information only. Detailed descriptions are provided in the architectural specifications. Furnish all material and equipment as specified excedwhere sports approval for substitution is given by the Architect/Engineer. GENERAL: Do not operate new HVAC systems until drywall sanding is complete and primed and jobsite dust is no longer significant. Construction dust is extremely detrimental to the long tam operation of the HVAC system. Provide temporary heating a coolingrdehumidifi cation systems during construction if it is desired or required. These drawings indicate required sizes and points of termination for piping, ductwork, conduit, etc. The equipment shown illustrates suggested routing, but all necessary offsets and fittings may not be shown. Contractor shall install his work in a manna that will conform wdth the structure. Contractor shall avoid obstructions, preserve head room and maintain maximum clearance without additional cost to the Owner. All dimensions shown on these plans are in feet and/or inches unless otherwise noted. Mechanical work shall be complete in every detail and all miscellaneous items of material and labor necessary to complete the work described, shown or reasonably implied on drawings or specifications, shall be included in the contract. Proposal shall be based on specified material and equipment. In order to promote competition, however, bloods may submit alternate Proposals on any alternate materials anchor equipment they wish to Propose, including any price changes affected by acceptance of alternatives. These must be provided in addition to the base bid not in place of the base bid. Contract document drawings for mechanical work are diagrammatic and are intended to convoy scope and general arrangement only. Install all mechanical equipment and appurtenances in accordance with Manufacturers' recommendations, contract documents, and applicable codes and regulations. Provide vibration isolation as specified for all mechanical equipment to prevent transmission of vibration to building structure. Provide vibration isolators for all piping supports connected to and within 50 feet of isolated ABED FOR CONSTRUCTION ipports and anchor points) throughout mechanical jest to compliance with all regulations of State and Local Codes City of Camel 03/25/19 Mechanical Symbols and Abbreviations Abbreviations Drawing Symbols Sheet Metal Symbols ACC ACCU air cooled condenser air cooled condensing unit GC GPM General Contractor gallons per minute Denotes section Section number Fire damper l u m 1Pn damper Volume d °P AFF above finish floor H humidifier T T BCC branch circuit controller HDR heavy duty register or grille 0 S 1 Supply diffuser ®�+� BDD backdratl damper HRB heat momery box M1 BOD bottom of duct CC cabinet convector HRU variable refrigerant heat recovery unit Sheet number Where Supply dud riser CD ceiling diffuser (supply air) HP heat pump Arrow indicates Direction section CEF ceiling exhaust fan HWP hot water pump in which Section is cut Is located Return duct user 0 CFM cubic feet per minute HWR hot water return CUH cabinet unit heater (electric or hi HWS hot water supply Supply register CEO CHWP CH WR chilled water pump chilled water return HX IN heat exchanger inch Denotes detail Detail number Lineardiffuser CHWS chilled water supply KEC kitchen equipment contractor CT cooling tower LAT leaving air temperature D 1 Flexible connection C1 CP condensate pump (steam) LS linear slot diffuser CW cold water MAN manual M1 E—Sheet number Return air grille IS DB dry bulb MAU make up air unit Where detail DOAS dedicated outdoor air system MFR Manufacturer Denotes Is located Exhaust grille Z DSAC ductless split air conditioner MBH 1000 STUN Construction 0 diameter MC Mechanical Contractor Starf point Exhaust 0 EDB entering air dry bulb OIA outside air EWB entering air wet bulb DAL outside air louver Square Elbow with Turning Vanes YJ EBR electric baseboard radiation PC plaque diffuser EC Electrical Contractor PSI pounds per square inch Rectangular to round duct transition ECR eggcrate grille RA return air EDC electric duct coil RD round diffuser Note Designation Temperature Control Symbols EF exhaust fan RG return air grille EG exhaust grille RPM revolutions per minute Room thermostat or sensor (D EH exhaust hood RTU roof top unit Plan Notes: Specific information as indicated on a ER exhaust register SA supply air drawing Room humidistat or sensor G w ERV energy recovery ventilator SBCC subbranch circuit controller ESP external static pressure SDG spiral duct grille Leader line of plan note referenced Motorized damper EVC evaporative cooler SP static pressure directed to item of plan note CO2 Sensor O EWH electric wall heater SR supply register reference F furnace SVK solenoid valve kit 1 ( Circle with number indicates a plan Wall Mounted System Manager FD fire damper TCC Temperature Control Contracts note reference, with the number SD fire and smoke damper TSP total static pressure indicating the Hem number of the plan FLA full load amps UH unit heater note referenced Design Conditions: FPM per feet per minute VAV variable air volume box Outdoor: FPVAV tan powered variable air volume box VD volume damper General Plan Notes: General information as it pertains Summer 89-75 F FT toot We wet bulb only mthe drawing it is on Winter:-3F IS gas VJr weight Indoor: XT expansion tank General Notes: General information containing Summer 75F and 5W6RH to all the drawings of the Winter: 70 F and 20%RH discipline it is on The location of existing underground utilities is shown in an approximate way only. The Contractor shall determine the exact location of all existing utilities before commenting work. The Contractor shall pay for and repair all damages caused by failure to exactly locate and Preserve any and all underground utilities unless otherwise indicated. Coordinate construction of all mechanical work with Architectural, Structural, Civil, Electrical work, etc., shown on other contract document drawings. Each respective contractor shall be responsible for coordinating the installation of his work with the work of other contractors and tratles Prior to the installation. Maintain a minimum of 6'-8' clearance to underside of pipes, duct, conduits, suspended equipment, etc., throughout access routes in mechanical rooms. All tests shall be completed before any mechanical equipment or piping insulation is applied. Locate all temperature, pressure, and flow measuring devices in accessible locations with straight section of pipe or duct up and downstream as recommended by the Manufacturer for appropriate accuracy. Work shall include startup of all systems, furnishing of operating and maintenance instructions and one (1) year guarantee, commencing on date of acceptance by the Owner or as otherwise specified. Testing, adjusting, and balancing agency shall be by a member of the Associated Air Balance Council (AABC) or the National Environmental Balancing Bureau (NEBB). Testing, adjusting, and balancing shall be performed in accordance with the AABC standards. Where two or more items of the same type of equipment are required the product of one Manufacturer shall be used unless otherwise noted. Coordinate all equipment connections with Manufacturers' certified drawings. Coordinate and provide all duct and piping Variations required fa final equipment connections to furnished equipment. Field verify and coordinate all duct and piping dimensions before fabrication. The locations of all items shown on the drawings or called for in the specifications that are not definitely fixed by dimensions are approximate only. The exact locations necessary to secure the best conditions and results must be determined by the project site conditions and shall have the approval of the Engineer before being installed. Do not scale drawings. All miscellaneous steel required to ensure Proper installation and/or as shown in details for piping, ductwork, and equipment shall be furnished and installed by the Mechanical Contractor. Provide access panels for installation in walls and ceilings, where required, to service dampers, valves, smoke detectors, and other concealed mechanical equipment. Access panels shall be turned over to General Contractor for installation. All equipment, piping, ductwork, etc., shall be supported as detailed, specified, anchor required to provide a vibration free installation. All outwork, piping, and equipment supported from structural steel shall be coordinated with the General Contracts. All attachments to steel barjoists, trusses, orjoist girders shall be at the upper member. Provide beam clamps meeting MSS standards. Welding to structural members shall not be permitted. The use of c-clamps shall not be permitted. Mechanical equipment, ductwork, and piping shall not be supported from metal deck. All roof mounted equipment curbs for equipment provided by the Mechanical Contractor shall be furnished by the Mechanical Contractor and installed by the General Contractor. Locations and sizes of all floor, wall, and roof openings shall be coordinated with all other trades. All openings in fire walls due to ductwork, piping, conduit, at., shall be fire stopped with a product similar to 3M a equal. Pmduct shall be listed by UL or FM and meet the requirements of local and state codes. All air conditioning condensate drain lines from each air handling unit or rooftop unit shall be piped full size of the unit drain outlet, with 'P'tap, and piped to the nearest drain or roof deck. See details shown on the drawings or the contract specifications for depth of air conditioning condensate traps. Mechanical General Notes Refer to typical details for ductwork, piping, and equipment installation All valves, coils, dampers, at. Shall be installed allowing easy access to them. Areas adjacent to the access panels shall be clear of obstruction. Furnish and install all equipment and material required to complete the installation as shown on the drawings. Equipment sizes, weights, power, geometry and service space requirements may vary between different Manufacturers. Consult approved Manufacturer drawings as submitted and coordinate with these &swings. It shall be the Contractor's responsibility to bear the costs associated with this coordination. All air handling units shall operate without moisture carryover. Locate all mechanical equipment (RTUs, single duct, etc.) for unobstructed access to unit access panels, controls, and valuing. Refer to mechanical details for additional equipment requirements. HVAC I SHEETMETAL: Certain items such as rises and dome in ductwork, access doors, volume dampers, etc., are indicated on the contract document drawings for clarity for a specific location requirement and shall not be interpreted as the extent of the requirements for these items. All ductwork dimensions, as shown on the drawings, are internal clear dimensions. Keep all ductwork, duct system and equipment openings covered with atlhesive duct protective wrap like Venturei 1512, until system start-up. This is to prevent intrusion of construction dirt and debris into the dud system, and HVAC equipment. Provide flexible connections in all ductwork systems (supply, return, and exhaust) connected to air handling units,fans, and other equipment which require vibration isolation. Flexible connections shall be provided at the point of connection to the equipment unless otherwise noted. Unless otherwise noted, all ductwork is overhead, tight to the underside of the structure, with space fa insulation and below any required piping. Runs of flexible duct shall not exceed 5'-0'. Flexible duct shall not be used as an elbow. Provide sheet metal elbow at diffuser neck where to is not out of the bottom of the supply main. Refer to details. All ductwork shall be coordinated with all tratles involved. Offsets in ducts, including divided ducts and transitions wound obstructions, shall be provided at no additional cost to the Owner. Provide access doors in ductwork to provide access fa all smoke detectors, fire dampers, smoke dampers, volume dampers, humidifiers, coils, and other items located in the ductwork which require service anchor inspection. Smoke detectors shall be furnished by Unit Manufacturer and wired by the Electrical Contractor. The Mechanical Contractor shall be responsible for mounting the smoke detector in ductwork as shown on the drawings and in accordance with Manufacturer's printed instructions. See specifications for ductwork gauges, bracing, hangers, and other requirements. Contractor shall not locate any duct or piping directly over any electrical panels, switchgear, transformer, etc. Coordinate locations of ducts and piping with the Electrical Contractor to avoid these conflicts. All ducts proposing chaff walls shall be sealed airtight with firestop. Provide volume dampers upstream of all air inlets/outlets unless otherwise noted. All rooftop units shall be accessed from the roof. Power for all rooftop units shall be wired by the Electrical Contractor and shall be placed on a dedicated circuit. Locate rooftop units on roof. Coordinate with structural plans. Set units as required to allow supply and return openings to clear roof structure. Furnish and install rain hoods on flues and intake ducts above roof. Provide companion opposed blade volume dampers with all diffusers mounted in drywall ceilings. Do not Provide companion volume dampers with diffusers mountetl in lay -in tile ceilings. Provide manual volume dampers in the branch ducts serving diffusers located above lay in tile ceilings. Diffusers, registers, and grilles mounted in drywall ceilings shall have plaster frames. Unless otherwise noted all ductwork above ceilings shall be insulated with 16- dudwrao Ducavrap shall be .751to I cu ff. density. Unless otherwise noted all ductwork in unconditioned spaces shall be insulated with 2' dudwrap (Min 196). Ductwrap shall be J5 is I cu ft. density. Install volume damper at each branch takeoff from main supply ducts. Mechanical Contractor shall furnish and install a 3-x3-A/a'steel angle frame around each rooftop unit roof opening. Field weld frames to top of joists. Locate rooftop units on roof so that the duct drops will clear the roof structure. Refer to Mechanical Detail Sheets for additional equipment requirements. Phenolic duct by PalDucta Kool-Duct is an acceptable alternative to shemmetal duct and insulation in concealed spaces. Use flanged joints. Submit detailed duct drawings for engineer review. RELATED ELECTRICAL AND PLUMBING: Unless otherwise noted all low voltage wiring (24 volts) shall be provided and installed by the Mechanical Contractor. This includes tans, radiant heaters, rooftop units, etc. Unless otherwise noted line voltage wiring (120 volts a greater) shall be provided and installed by the Electrical Contractor. Wiring should be concealed at all times unless otherwise noted on the plans. Contact the Engineer if concealment is not possible. All control wire and conduit shall comply with the National Electric Code (NEC) and Division 1626 of the specifications. Condensate chain pipe run out shall be full size to the nearest drain. Refer to'P' sheets for routing. Coordinate installation of gas piping for HVAC units with Plumbing Contractor. Furnish and install a gas cock at each unit connection. Refer to electrical and plumbing drawings fa additional coordination with these drawings. Any unit supplied with natural a LP gas shall be furnished with pressure regulators by Unit Manufacturer. APPEARANCE: All equipment should be installed with great regard to a neat finished product. Whenever possible, wiring should be routed in such a way as to minimize visibility. Eliminate the need for condensate pumps if possible. Contact the Engineer prior to installing any equipment that will not be able to be installed in a neat, first class manner, consistent with the Manufacturer's installation instructions. RELATED GENERAL CONSTRUCTION: Unless otherwise noted flashing of roof openings will be done by the General Contractor. Deliver rooftop unit and exhaust fan curbs to General Contractor for installation. Contact General Contractor to coordinate this portion of the work. Concrete housekeeping pads to suit mechanical equipment shall be sized and located by the Mechanical Contractor. Minimum concrete pad thickness shall be 31/' unless otherwise noted. Pad shall extend beyond the equipment a minimum of 6- on each side. Concrete housekeeping pads shall be Provided by the Mechanical Contracts. It shall be the responsibility of the Mechanical Contractor to coordinate size and location of concrete housekeeping pads with the General Contractor. GOLLABpR� l'r $v G Exterior louvers are indicated for information only. Louver sizes, locations, and details shall be coordinated with the General Contractor. SUBSTITUTIONS: Cost of any changes required by this, a other trades, due 0 substitution of equipment other than the basis of design, shall be included in the Mechanical Contractor's Proposal. UTILITIES: Unless otherwise noted the local gas company shall provide gas to the building and furnish and install the meter. Connection to the meter and extension of the piping shall be made in accordance with the utility company requirements. Contact local utility company to arrange for gas meta installation. Furnish and install piping and specialties as required to receive meter. Verily local conditions at the site. RELATED CONTROLS: Unless otherwise noted, locate all room thermostats and humi iistats 4'-0- (centerline) above finish floor. Notify the Engineer prior to installation of any rooms where the above location cannot be maintained a where there is a question on location. All control wiring and related control components should be concealed unless otherwise noted on the plans. Contact the Engineer if concealment is not possible. TEMPORARY SERVICE: Equipment provided as part of this contract should not be used fa heatinglcooling&entilation of the project prior to all sanding being complete, and at least 1 coat of paint on all surfaces. The intent of this is to prevent the infiltration of construction dust into the heating I cooling coils and causing long term performance or reliability issues. SOB Lin & Associates, LLC 4340 East West Highway Suite 105 Bethesda, Maryland 20814 USA 301.986-9300 Fax.986-0500 Notes Consultants Dwn By AK Chkd By JTL Job No. 1812 Project NAIL SALON 7245 EAST146th St CARMEL, IN 46033 ZUMOT REAL ESTATE MGMT. 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