American Dryer Corp D-40 installation manual

Page 33

a.The pressure of the condensate in the steam supply line will cause water hammer and subsequent heat exchanger (steam coil) failure. The steam supply connection into the main supply line must be made with a minimum 10-inch (25.4 cm) riser. This will prevent any condensate from draining towards the dryer.

b.The steam supply line to the dryer must include a 12-inch (30.48 cm) riser along with a drip trap and check valve. This will prevent any condensate from entering the steam coil.

c.Flexible hoses or couplings must be used. The dryer vibrates slightly when it runs and this will cause the steam coil connections to crack if they are hard piped to the supply and return mains.

d.Shutoff valves for each dryer should be This will allow the dryer to be isolated maintenance work.

installed in the supply line, return line, and drip trap return line. from the supply main and the return main if the dryer needs

e.Install an inverted bucket steam trap and check valve at least 12-inches (30.48 cm) below the steam coil as close to the coil as possible.

1)A trap with a capacity of 350 lbs (160 kg) of condensate per hour at 125 PSI (8.61 bars) is needed for each unit.

f.The supply line and the return line should be insulated. This will save energy and provide for the safety of the operator and maintenance personnel.

g.Water pockets in the supply line, caused by low points, will provide wet steam to the coil possibly causing steam coil damage. ALL horizontal runs of steam supply piping should be pitched 1/4-inch (6.35 mm) for every 1 foot (0.30 meters) back towards the steam supply header causing the condensate in the line to drain to the header. Install a bypass trap in any low point to eliminate wet steam.

IMPORTANT: Flexible hoses/couplings must be used. Coil failure due to hard plumbing connections will VOID THE WARRANTY.

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Contents
Installation Manual Important Note to Purchaser Retain This Manual In a Safe Place For Future ReferenceFor Your Safety Page Table of Contents Section Routine Maintenance Receiving and Handling Important InformationExplosion could Result Safety PrecautionsStandards Specifications SpecificationsSpecifications UNPACKING/SETTING UP Installation ProceduresLocation Requirements Dryer Enclosure Requirements Fresh AIR Supply Requirements Exhaust Requirements Single Dryer Venting Vertical Venting Multiple Dryer Common Venting Illus. C Important Venting Reminders Electrical Requirements Electrical InformationMust be Provided SINGLE-PHASE 1Ø Electrical Connection Leads Important a Circuit Servicing Each Dryer Must be Provided Important a Circuit Servicing Each Dryer Must be Provided 40 GAS Steam GAS Information Type of GAS Page Page Steam Information Operating Steam PressurePage Compressed AIR Pressure AIR Supply Page Steam Damper Air Piston Flow Control Operation Adjustment Preparation for OPERATION/START-UP GAS Models only Preoperational TestsCoin Models Preoperational InstructionsPage OPL Models Page SERVICE/PARTS Information ServiceParts Returning Warranty Cards Warranty InformationWarranty Returning Warranty PartsPage Routine Maintenance CleaningSuggested Cleaning Schedule Lubrication AdjustmentsLint Drawer Removal Data Label Data Label InformationSerial Number TIM ING Legend Reversing Timer SPIN/DWELL AdjustmentsProcedure for Functional Check Replacement Components Page F.E. Fire Suppression System F.S.S S. In ActionBefore YOU Start Check Local Codes and Permits InstallationWater Connections Optional Manual Bypass Electrical Requirements System ResetParts Break Down Comp x 3/8 M.P.T. Brass Connector 822752 ADC 113370 1 03/25/02-25
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