Transcription of BACKDRAFT DAMPER - Duct and Dampers
1 ACCESSORY ITEMS12345 ACCESSORY ITEMS12345 STANDARD SPECIFICATIONS:Maximum Face Velocity: 2250 : See sizing chart"A" Dimension is square DAMPER : Galvanized steel, 2" DeepBlades: 26 gauge Mill Finish pivots: Stainless steel rivet at all pivot : Felt between adjacent Balance: Adjustable spring : Temp: DAMPER 250 F Motor 130 FCAUTION: Motor kits are not suitable for use in explo-sive or flammable areas or :(1) Units are undersized 1/4" to fit in square ducts.(2) Do not mount fan less than 1/3 diameter of the fan from the DAMPER .(3) Dampers shipped in individual cartons.(4) Motor kits ship loose for field DAMPERFOR ROOF MOUNTED AND INLINECENTRIFUGAL/PROPELLER EXHAUST FANSFor low velocity (CFM) field adjustment of spring tension may be required to ensure that DAMPER blades open : Motor kits are not suitable for use in explosive or flammable areas or MOTOR KITS pring tension adjustment holes4 1/2"4"8"Max2"AIR FLOWOPTIONAL MOTOR KIT8" Max4"2"Spring tension adjustment holes4 1/2"AIR FLOWFAN SIZECENTRIFUGAL ROOF FANSINLINE FANSPROPELLERDB, RED, TXB, LPD, TXDSQBSQDARE"A" SQUARE"A" SQUARE"A" SQUARE"A" SQUARE611-9-7-12--8111212-911---10111414 1411/12181818181418---15182220-1618--221 82424--202428-26243035--303640--363648-- 424854--4848---Subject to change unless approved in submittal by JencoFanRoofCentPropExhaustDmper_Submitt al_JenProject:Customer:Location:Submitte d:Approved:6393 Powers AvenueJacksonville, Florida 32217-2298P: / F.
