Document 65E4DJMv2XyeM0zZDNyRV8rE

Motors and Contml GENERAL ELECTRIC COMPANY SCHENECTADY, N. Y. SALES OFFICES. WAREHOUSES. SERVICE SHOPS and DISTRIBUTORS m PRINCIPAL CITIES For Code Wire, Conduit Products, Wiring Devices. Insulating Materials address Merchandise Department, Bridgeport, Conn. ' etc'' Motors and Control For Heating, Ventilating and Air Conditioning Systems Quiet Operating Motors Motors and Control In this time and age the public are demanding that unnecessary noises be subdued. Modern public buildings use electric motor driven ventilating fans to supply fresh and conditioned air. Or dinary motors will drive such equipment satisfactorily, but the occupants are likely to be well aware of the fact that such motors are in operation. General Electric has designed and have available for shipment a complete line of quiet operating induction motors for use in office buildings, hotels, theatres, hospitals and other places where unnecessary noise is objectionable. The same high standards of quality, electrical and mechanical strength, and reliability are maintained in these o operating motors as in the well-k^' G-E General Purpose Motors p*, motor is tested for quietness before shi ment. "'P- MTB Wound Rotor Quiet Operating Induction Motor al Electric Company Motors and Controllers Motors and Control For Heating, Ventilating and Air Conditioning Systems Quiet Operating Motors The best method of mounting is to have 'nl,otorand fan on a common base, the TiJ hase being mounted on proper msu*h- * supports. Where the fan and motor btl not on^he same base, it is difficult to aie nv sound absorbing insulation under If motor without causing difficulty m toping the equipment properly lined up. The location of the motor in the building with reference to the acoustics of the sur rounding structure is a very important point, and while in one location a perfectly standard motor may be acceptable, the same motor may be entirely unsuitable in another location. Alternating Current Control The General Electric Co. manufactures complete line of control devices for . * rtine and controlling motors driving dilating fans. The table below gives briefly the line of controllers for use with alternating current motors. All controltrs are of the enclosed type externally operated. Speed regulators are designed toeive 50 per cent speed reduction on fan load and arranged to maintain equalized current in all phases of the rotor which is necessary to maintain quiet operating motors. Details may be obtained at the nearest sales office. Centrifugal, Housed Fans Driven by G-E Type KTB. Quiet-operating, Constant-speed Induction Motors in Union Trust Building, Detroit, Mich, This Company will gladly assist in the solution of any electrical problem In relation to heating and ventilation 758 CR7766, 1-S'Jlp. Controller Switches CR776I-F1. eo-so Hp. Controller Method of Operation Type CR1924 CRI038 CR7006 Posh Button CR7006FI Horsepower Range V4-50. '/,-5 I -50 1 -5 Overload Protection Remarks Fuse...................... ........ Safety Type. Thermal Cut-outs............. Tumbler Switch. I emperature Relay........... Contactor. Fuse and Temperature Relay Combined Magnetic Switch and Disconnection. Starters Manual CRI034 Manual CR1042 PushButton CR7056 Push Button CR705I Push Button CR7773 5 -50 5 -15 2 -50 5 -50 1 -5 Temperature Relay........... Temperature Relay........... Temperature Relay........... Temperature Relay........... lime Limit............ . Compensator Type. Resistance Type. Resistance Type. Compensator Type. Combined Magnetic Starter and Circuit Breaker Speed Regulators Manual Manual Manual Push Button Push Button CR1264 CR7764C1 CR7764HI CR7765 CR7761 1 -15 . 7Vr*50 5 -50 1 -50 5 -50 Requires Separate Switch. Temperature Relay. Combined Regulator and Switch. Time Limit..................... Combined Regulator and Circuit Breaker. Temperature Relay.. Preset Speed Type. Temperature Relay---- Remote Speed Indicating. This Company will gladly assist In the solution of any electrical problem In relation to heating and ventilation 759