SQD-106
12Pages

HIGHER EFFICIENCY GREATER VERSATILITY SPAD/SQBffi)DIRECT DRIVE FANS 2D The building of all Chicago ’’SO'' Fans is monitored by stringent Quality Control and Quality Assurance Programs. Chicago’s Stock Fan program assures expediency without sacrificing quality and reliability. “Our fan s most important feature is the reliability we are able to add to your product." For Industrial Air Handling Direct Drive SQAD/SQ8D fans combine the performance and efficiency of Chicago's versatile "Square11 Fans with the advantages of a compact directly driven arrangement. With the fan wheel mounted directly...

RUGGED HOUSING The heavy gauge steel housings have continuously welded air-tight seams. All edges are flanged for exceptional rigidity. The flanged outlet is pre-punched to simplify ductwork connection, and matches optional outlet damper flange. RIGID MOTOR BASE Heavy gauge steel motor base is supported by gussets that extend to the foundation flange and assure solid structural stability. FOUR DISCHARGE POSITIONS For versatility, the housing can be installed on the floor, wall or ceiling in any one of four discharge positions. STREAMLINED INLET The precision spun steel inlet cone assures...

OPTIONAL FEATURES COMPACT MOUNTED ACTUATOR INLETS Slip fit inlets and punched flanged inlets are available to meet installation requirements. The open inlet is standard. INLET SCREEN Welded steel wire screen mounts entirely within the inlet cone or outside the inlet vanes when the fan is furnished with an Inlet Volume Control. SHAFT SEAL Standard seal reduces leakage through the shaft opening in the housing. Leak resistant shaft seals are also available HOUSING DRAIN A half coupling is welded to the lowest point of the housing. ACCESS DOOR The flush mounted door features quick opening...

Pages 6 through 9 contain multi-rating tables for SQAD and SQBD fans. Each page provides data for a particular motor speed and fan wheel type. Fan sizes are listed with the maximum power (BHP) and the corresponding motor HP. Under each pressure (SP) rating, the volume (CFM) and outlet velocity (OV) for each fan size is listed. For pressures not provided in the tables, simply interpolate between two given pressures. The separate SQAD and SQBD tables allow selection for type of application. If the application does not limit the requirements to either a SQAD or SQBD, a comparison of the two...

AIRFOIL WHEEL - Performance Data Fan Size NOTES ON SOUND RATINGS: 1. Ratings are based on sound tests in accordance with AMCA sound code 300 setup 1. 2. Values shown are for total internal sound power level re 101S watt per AMCA Bui. 301 and 303, if necessary to obtain sound pressure level at 5 leet from fan. subtract 15 dB from octave band figure and make a further correction for end reflection based on data in the ASHRAE Handbook of Fundamentals. 3. DBA value applies to 10 foot distance based on theoretical free field environment. 4. Ratings apply to normal range of selection for high...

BACKWARD INCLINED WHEEL - Performance Data Fan Size NOTES ON SOUND RATINGS: 1. Ratings are based on sound tests in accordance with AMCA sound code 300 setup t. 2. Values shown are for total internal sound power level re 10,,J watt per AMCA Bui. 301 and 303, if necessary to obtain sound pressure level at 5 teet from fan, subtract 15 dB Irom octave band figure and make a further correction for end reflection based on data in the ASHRAE Handbook of Fundamentals. 3. DBA value applies to 10 foot distance based on theoretical free field environment. 4. Ratings apply to normal range of...

Performance shown is for Direct Drive SQA Fans with outlet duct. BASIC SOUND POWER LEVEL and dBA Size NOTES ON SOUND RATINGS: 1. Ratings are based on sound tests in accordance with AMCA sound code 300 setup 1. 2. Values shown are for total internal sound power level re 10’! watt per AMCA Bui. 301 and 303, if necessary to obtain sound pressure level at 5 feet from fan. subtract 15 dB from octave band figure and make a further correction for end reflection based on data in the ASHRAE Handbook of Fundamentals. 3. DBA value applies to 10 foot distance based on theoretical free field...

BACKWARD INCLINED WHEEL - Performance Data Fan Size Size 13-1/2 SQBD with spark resistant construction rated for 3320 CFM at 9" SP. NOTES ON SOUND RATINGS: 1. Ratings are based on sound tests in accordance with AMCA sound code 300 setup 1. 2. Values shown are for total internal sound power level re 10',s watt per AMCA Bui. 301 and 303, if necessary to obtain sound pressure level at 5 feat from fan. subtract IS dB from octave band figure and make a further correction for end reflection based on data in the ASHRAE Handbook of Fundamentals. 3. DBA value applies to 10 foot distance based...

' K Dimension Applies to Max. Motor Frame Size •* Available lor B Wheel Only DO NOT USE FOB CONSTRUCTION UNLESS CERTIFIED.

CHICAGO SQUARE FANS for EVERY APPLICATION SQA FANS The airfoil bladed fan is the most efficient wheel type and is recommended primarily for clean air applications. Like all Chicago Square Fans, the SQA has flanged edges on four sides for added strength and for mounting in any of the four discharge positions. Stock sizes from 8-3/4 fo 44-1/2 with volumes to 55,600 CFM and pressures to 16" wg. Ask for Bulletin SQA. This type SQB is designed for industrial applications where the good efficiency of backwardly inclined blades is combined with the capability of handling corrosive or dusty...

Setting the Standard For Quality Sales Offices Throughout North America Chicago Blower Fans are also manufactured worldwide: Your Primary Source For Every Fan Requirement General Duty - Industrial Duty - Heavy Duty - Argentina, Australia, Brazil, Chile, China, Colombia, Denmark, Germany, Greece, Holland, Hong Kong, India, Fans to handle dirty and corrosive environments Custom engineered fans for specific applications Indonesia, Israel. Italy. Japan, Korea, Malaysia, New Zealand, Norway, Philippines, Portugal, Saudi Arabia, Singapore, South Africa, Spain, Sweden, Thailand, Taiwan, Turkey,...