Greenheck. Cook Joy Induction Type Lab Fans: Strobic. Greenheck Vektor. Cook Provide balanced variable sheaves for motors 7.5 HP and under and fixed sheaves for motors 10 HP and over. Size variable sheaves at midpoint of specified operating conditions to allow field adjustment up or down during balancing procedures. Where fixed speed sheaves are specified for a specific fan, provide one (1) additional sheave set, if required, for final balancing. Fan selection and ratings shall be based on tests made in accordance with AMCA 210. Fans shall be AMCA licensed and shall bear the AMCA seal for both sound and performance levels. Fan be minimum Class I construction with proper UL label. The specified fan RPM, outlet velocity, and tip speed are the maximum acceptable. The motor horsepower, CFM, and static pressure are the minimum acceptable. Unless noted otherwise by specific fan type or per schedule, fan housing shall be heavy gauge continuous welded corrosion resistant steel construction with fan scroll and bearings supported from structural steel framework. All fasteners shall be corrosion resistant type. Fan housing shall be of suitable thickness and bracing required for stable and rigid construction, with no deflection, and to prevent vibration and pulsation. Fans having duct-connected inlets shall be provided with a flanged inlet and/or outlet collar matching companion flange. Provide OSHA belt guards on all belt driven fans. Fans shall be spark-proof Type A, B or C (AMCA 99-0401) as required by application. For exterior mounted fans, a weatherproof housing shall be provided with ventilation grilles to cover motor and drive assembly. Provide special construction fans, such as spark-proof, or specially coated fans as required by schedules or as specified herein. Provide birdscreen on fans exposed to the exterior environment. Provide adequate space for service of fan, motor and bearings.
Greenheck. Cook Joy Induction Type Lab Fans: Strobic. Greenheck Vektor. Cook Provide balanced variable sheaves for motors 7.5 HP and under and fixed sheaves for motors 10 HP and over. Size variable sheaves at midpoint of specified operating conditions to allow field adjustment up or down during balancing procedures. Where fixed speed sheaves are specified for a specific fan, provide one (1) additional sheave set, if required, for final balancing. Fan selection and ratings shall be based on tests made in accordance with AMCA 210. Fans shall be AMCA licensed and shall bear the AMCA seal for both sound and performance levels. Fan be minimum Class I construction with proper UL label. The specified fan RPM, outlet velocity, and tip speed are the maximum acceptable. The motor horsepower, CFM, and static pressure are the minimum acceptable. Unless noted otherwise by specific fan type or per schedule, fan housing shall be heavy gauge continuous welded corrosion resistant steel construction with fan scroll and bearings supported from structural steel framework. All fasteners shall be corrosion resistant type. Fan housing shall be of suitable thickness and bracing required for stable and rigid construction, with no deflection, and to prevent vibration and pulsation. Fans having duct-connected inlets shall be provided with a flanged inlet and/or outlet collar matching companion flange. Provide OSHA belt guards on all belt driven fans. Fans shall be spark-proof Type A, B or C (AMCA 99-0401) as required by application. For exterior mounted fans, a weatherproof housing shall be provided with ventilation grilles to cover motor and drive assembly. Provide special construction fans, such as spark-proof, or specially coated fans as required by schedules or as specified herein. Provide birdscreen on fans exposed to the exterior environment. Provide adequate space for service of fan, motor and bearings.
MS233400.docx