Common use of Air Conditioning System Clause in Contracts

Air Conditioning System. General: The system shall have ducted supply and return air. The space above the ceiling shall not be used as a supply or return plenum. Each employee in the building will have a personal computer. There will also be peripheral equipment such as printers, photocopiers, fax machines, scanners and computer network servers. The heat generated by this equipment shall be included in the cooling system design calculation. A value of 1,500 Btu’s per person shall be used in the design of the HVAC system. Cooling system can utilize either DX or chilled water system. The condenser sections for either system shall be air cooled, and sized to reject the maximum heat load with outside air temperatures identified BOCA. Design Conditions: The HVAC for conditioning system shall be capable of maintaining temperatures in the range of 680F and 780F, and dehumidify or humidify to maintain a relative humidity in a range between 15% and 50% depending on the season. Ductwork: Fabricate ductwork from a minimum 24 gauge zinc-coated (galvanized) steel, lock-forming quality sheets conforming to ASTM A527. Zinc coating thickness: “Commercial” class G90, except a minimum of 2 oz. per sq. ft. where the metal is exposed to the weather. Ductwork shall be constructed in accordance with SMACNA “HVAC Duct Construction Standards – Metal and Flexible”, first edition, 1985. Insulate concealed ductwork with Xxxxx Corning all service duct wrap type 100 with FRK vapor barrier facing or boil backing. Insulate exposed ductwork with rigid board insulation over mechanical fasteners. Insulation shall meet UL-181. Duct insulation shall be installed on all ductwork in unconditioned spaces, and outside air ducts between the louver and air handling unit. Flexible ductwork and assemblies shall meet the class 1 requirements of NFPA 90A and 90B, and labeled by UL with a flame spread of 25 or less and a smoke development rating of 50 or less, in compliance with UL-181. Flexible ducts shall be limited to a maximum length of 5’ and no section over 2.5’ shall be unsupported. Duct Accessories: Fire dampers shall be installed in all locations required by building code. Diffusers shall be of the following type and sized to meet demand: Type #1 Key operated opposed blade dampers. Type #2 24” x 24” egg crate return diffusers, for grid type ceiling. (Vestibule location only.) Diffusers should not be located directly over the customer service counters the location and layout shall be approved by the State.

Air Conditioning System. General: The system shall have ducted supply and return air. The space above the ceiling shall not be used as a supply or return plenum. Each employee in the building will have a personal computer. There will also be peripheral equipment such as printers, photocopiers, fax machines, scanners and computer network servers. The heat generated by this equipment shall be included in the cooling system design calculation. A value of 1,500 Btu’s per person shall be used in the design of the HVAC system. Cooling system can utilize either DX direct expansion (DX) or chilled water system. The condenser sections for either system shall be air cooled, and sized to reject the maximum heat load with outside air temperatures identified BOCAthe BOCA Building and Mechanical Codes. Design Conditions: The HVAC for conditioning system shall be capable of maintaining temperatures in the range of 680F 68oF and 780F78oF, and dehumidify or humidify to maintain a relative humidity in a range between 15% and 50% depending on the season. Ductwork: Fabricate ductwork from a minimum 24 gauge zinc-coated (galvanized) steel, lock-forming quality sheets conforming to ASTM A527. Zinc coating thickness: “Commercial” class G90, except a minimum of 2 oz. per sq. ft. where the metal is exposed to the weather. Ductwork shall be constructed in accordance with SMACNA “HVAC Duct Construction Standards – - Metal and Flexible”, first editionFirst Edition, 1985. Insulate concealed ductwork with Xxxxx Corning all service duct wrap type 100 with FRK vapor barrier facing or boil foil backing. Insulate exposed ductwork with rigid board insulation over mechanical fasteners. Insulation shall meet UL-181. Duct insulation shall be installed on all ductwork in unconditioned spaces, and outside air ducts between the louver and air handling unit. Flexible ductwork and assemblies shall meet the class Class 1 requirements of NFPA 90A and 90B, and labeled by UL with a flame spread of 25 or less and a smoke development rating of 50 or less, in compliance with UL-181UL 181. Flexible ducts shall be limited to a maximum length of 5’ 5 feet and no section over 2.5’ 2-1/2 feet shall be unsupported. Duct Accessories: Fire dampers shall be installed in all locations required by building codelocations. Diffusers shall be of the following type and sized to meet demand: Type #1 Grillmaster #CB 404, curved blade registers. Key operated opposed blade dampers. Type #2 Grillmaster #RN-PT series round neck perforated diffuser for grid type ceilings. Type #3 24” x 24” egg crate eggcrate return diffusers, for grid type ceiling. Temperature Controls: Variations in temperature within each control zone, and between zones, shall not exceed 4oF, with the temperature measured from a reference point one foot inside of any exterior wall to the center of the building. The temperature variation from the floor to a height of 30 inches for any employee work station (Vestibule location only.either conventional desk or open space modular furniture) Diffusers should shall not be located directly over the customer service counters the location and layout exceed 2oF. Testing shall be approved by made when the Stateexterior temperature has reached a daily peak of 80oF or more for two days.

Air Conditioning System. General: The system shall have ducted supply and return air. The space above the ceiling shall not be used as a supply or return plenum. Each employee in the building will have a personal computer. There will also be peripheral equipment such as printers, photocopiers, fax machines, scanners and computer network servers. The heat generated by this equipment shall be included in the cooling system design calculation. A value of 1,500 Btu’s per person shall be used in the design of the HVAC system. Cooling system can utilize either DX or chilled water system. The condenser sections for either system shall be air cooled, and sized to reject the maximum heat load with outside air temperatures identified BOCA. Design Conditions: The HVAC for conditioning system shall be capable of maintaining temperatures in the range of 680F and 780F, and dehumidify or humidify to maintain a relative humidity in a range between 15% and 50% depending on the season. Ductwork: Fabricate ductwork from a minimum 24 gauge zinc-coated (galvanized) steel, lock-forming quality sheets conforming to ASTM A527. Zinc coating thickness: “Commercial” class G90, except a minimum of 2 oz. per sq. ft. where the metal is exposed to the weather. Ductwork shall be constructed in accordance with SMACNA “HVAC Duct Construction Standards – Metal and Flexible”, first edition, 1985. Insulate concealed ductwork with Xxxxx Corning all service duct wrap type 100 with FRK vapor barrier facing or boil backing. Insulate exposed ductwork with rigid board insulation over mechanical fasteners. Insulation shall meet UL-181. Duct insulation shall be installed on all ductwork in unconditioned spaces, and outside air ducts between the louver and air handling unit. Flexible ductwork and assemblies shall meet the class 1 requirements of NFPA 90A and 90B, and labeled by UL with a flame spread of 25 or less and a smoke development rating of 50 or less, in compliance with UL-181. Flexible ducts shall be limited to a maximum length of 5’ and no section over 2.5’ shall be unsupported. Duct Accessories: Fire dampers shall be installed in all locations required by building code. Diffusers shall be of the following type and sized to meet demand: Type #1 Grillmaster #CB 404, curved blade registers. Key operated opposed blade dampers. Type #2 Grillmaster #RN-PT series round neck perforated diffuser for grid type ceilings. Type #3 24” x 24” egg crate return diffusers, for grid type ceiling. Temperature Controls: Variations in temperature within each control zone, and between zones, shall not exceed 40F, with the temperature measured from a reference point 1’ inside of any exterior wall to the center of the building. The temperature variation from the floor to a height of 30” for any employee workstation (Vestibule location only.either conventional desk or systems furnishings) Diffusers should shall not be located directly over the customer service counters the location and layout exceed 20F. Testing shall be approved by made when the Stateexterior temperature has reached a daily peak of 800F or more for 2 days.