American Dryer Corp ML-75DII installation manual Operating Steam Pressure

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IMPORTANT: Coil failure due to improper PH level will VOID THE WARRANTY.

2.Steam Requirements - High Pressure

Inlet -------- 1-inch supply line connection -- qty. one (1) at top manifold. Return ----- 1-inch return line connection -- qty. one (1) at top manifold.

OPERATING STEAM PRESSURE

MAXIMUM

125 psig

 

862 kPa

 

 

 

 

MINIMUM

100 psig*

 

689 kPa

 

 

 

 

HEAT INPUT (NORMAL LOAD)

 

7 Bhp

 

 

 

 

CONSUMPTION (APPROXIMATE) @ 125 PSI

238.7 lbs/hr

 

108.3 kg/hr

 

 

 

 

Shaded areas are stated in metric equivalents

*Minimum operating pressure for optimum results.

3.Installation Instructions

To insure an adequate supply of steam is provided, be sure that the steam lines and steam return lines are sized and laid out as stipulated in this manual. Inadequate steam lines and steam return lines or improper steam plumbing will result in poor performance and can cause component failure. Clean, dry steam must be provided to the dryer.

IMPORTANT: Steam coil failure due to water hammer by wet steam will VOID THE WARRANTY.

a.The pressure of the condensate in the steam supply 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 piping to the dryer must include a 12-inch (30.48 cm) rise 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 installed in the supply line, return line, and drip trap return line. This will allow the dryer to be isolated from the supply main and the return main if the dryer needs maintenance work.

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 capacity of 700 pounds (317.51 kg) of condensate per hour at 125 PSI (8.62 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.

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Contents ML-75DII Retain This Manual In a Safe Place For Future Reference For Your Safety Page Table of Contents Section Routine Maintenance Important Information SectionWhat to do if YOU Smell GAS Safety PrecautionsStandards Specifications SPECIFICATIONS/COMPONENT IdentificationSpecifications Component Identification Page Location Requirements Installation ProceduresUNPACKING/SETTING UP Dryer Enclosure Requirements Fresh AIR Supply Horizontal Venting Exhaust RequirementsPage Page Page Page Electrical Requirements Electrical InformationMLS-75 Steam MLE-75 Electric Page Single-Phase 1Ø Electrical Connections Leads Page Page Page GAS Information Type of GAS Page Steam Information Operating Steam Pressure Page Compressed AIR Supply AIR Pressure Page Preparation for OPERATION/START-UP Preoperational Tests Basket Coating Preoperational Instructions Shut Down Instructions Parts SERVICE/PARTS InformationService Returning Warranty Parts Warranty InformationReturning Warranty Cards WarrantyPage Cleaning Routine MaintenanceDays Lubrication AdjustmentsProcedure for Functional Check Replacement Components Page Page Timing Legend Reversing Timer SPIN/DWELL AdjustmentsData Label Data Label InformationData Label P O RTA N T Manual Reset HI-LIMIT InstructionsFor Phase 6 Models Electric or Steam Models only