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C. Enclosure Type: The following features are required: <br /> 1) Open drip-proof motors where satisfactorily housed or remotely located during operation. <br /> 2) Guarded drip-proof motors where exposed to contact by employees or building occupants. <br /> d. Overload protection: Built-in,automatic reset,thermal overload protection. <br /> e. Noise rating: Quiet. <br /> f. Efficiency: Energy-efficient motors shall have a minimum efficiency as scheduled in Division 15 Section <br /> 15030 Electrical Requirements for Mechanical Equipment. If efficiency not specified,motors shall have <br /> a higher efficiency than"average standard industry motors"in accordance with IEEE Standard 112,Test <br /> Method B. <br /> g. Nameplate: Indicate the full identification of manufacturer, ratings, characteristics, construction, and <br /> special features. <br /> 6. Starters, Electrical Devices, and Wiring: Refer to Section 15862 "Variable Speed Drives" for requirements, <br /> provide where indicated. Other electrical devices and connections are specified in Division 16. <br /> E. Coils: <br /> 1. Testing Requirements: The following factory tests are required: <br /> a. Coil Performance Tests: Cooling and heating coils,except sprayed surface coils, shall be factory tested <br /> for rating in accordance with ARI 410- Standard for Forced-Circulation Air- Cooling and Air-Heating <br /> Coils. <br /> 2. Coil Sections: Common or individual insulated, galvanized steel casings for heating and cooling coils. Coil <br /> section shall be designed and constructed to facilitate removal of coil for maintenance and replacement and to <br /> assure full air flow through coils. <br /> 3. Coils,General: Drainable,rigidly supported across the full face of the coil,and pitched to allow drainage. <br /> a. Fins: Aluminum or copper, constructed from flat plate with belled collars for tubes. Fins shall be <br /> bonded to tubes by mechanically expanding copper tubes. <br /> b. Tubes: Seamless copper. <br /> c. Coil Casing: Galvanized steel. <br /> d. Headers for Water Coils: Steel or cast iron,with connections for drain valve and air vent and threaded <br /> piping connections. <br /> e. Water Coil Turbulators: Bronze,spring-type. <br /> 4. Direct-Expansion Refrigerant Coils: Designed and fabricated in compliance with ASHRAE Standard 15, <br /> "Safety Code for Mechanical Refrigeration." Coils shall have the following features: <br /> a. Suction Headers and Distributor Tubes: Seamless copper. <br /> b. Venturi-type refrigerant distributor, designed for low pressure drop, arranged for down feed with solder <br /> connections,and having a maximum of 12 circuits for each distributor. <br /> 15854-9 No.99132-CP2 <br />