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0 TRANE* <br /> Application Considerations <br /> Application of this product should be within the cataloged airflow and cooling considerations. <br /> Barometric Relief <br /> This product line offers an optional barometric relief damper for use in conjunction with <br /> economizer option.This accessory consists of gravity dampers which open with increased <br /> pressure.As the building air pressure increases,the pressure in the unit return air section also <br /> increases, opening the dampers and relieving the conditioned space. <br /> Note:The effectiveness of barometric relief damper during economizing operation is limited, <br /> depending on the pressure drop of the return-air path. For some applications, powered <br /> exhaust may be better suited for preventing over-pressurization when economizing. <br /> Black Epoxy Coil <br /> The coils are manufactured with a thermoset,vinyl coating that is bonded tothe aluminum fin stock <br /> prior to the fin stamping process.These coils are an economical option for protection in mildly <br /> corrosive environments. <br /> Note: Not to be used where seacoast applications exist. <br /> Clearance Requirements <br /> The recommended clearances identified with unit dimensions should be maintained to assure <br /> adequate service maximum capacity and peak operating efficiency.Actual clearances which <br /> appear inadequate should be reviewed with the IocalTrane®sales personnel. <br /> Clearance required from duct to <br /> Model Number combustible surfaces (inches) <br /> WSC036E 0 <br /> WSC048E 0 <br /> WSC060E 0 <br /> WSC072E 1 <br /> WSC090E 1 <br /> WSC120E 1 <br /> Condensate Trap <br /> The evaporator is a draw-thru configuration.A trap must be field provided prior to start-up on the <br /> cooling cycle. <br /> Low Ambient Cooling <br /> The PrecedentTl line features,with ReliaTeIT" microprocessor controls,low ambient cooling down <br /> to 0°F.The following features or options need to be included/considered when low ambient <br /> applications are required:continuous fan operation,crankcase heaters,thermal expansion valves, <br /> frostat. <br /> Contact a local Trane®Representative for more assistance with low ambient cooling applications. <br /> Unit Pitch <br /> The unit has a reversible sloped condensate drain pans.The unit must be installed level.Any unit <br /> slope must be toward the side of unit where condensate drain is connected. <br /> PKGP-PRC013K-EN 17 <br />