American Dryer Corp ML-78 installation manual Steam Information, Operating Steam Pressure

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H. STEAM INFORMATION

It is your responsibility to have ALL plumbing connections made by a qualified professional to assure that the gas plumbing installation is adequate and conforms with local and state regulations or codes.

IMPORTANT: Failure to comply with the requirements stipulated in this manual can result in component failure which will VOID THE WARRANTY.

NOTE: The MLS-78 is manufactured with a pneumatic (piston) damper system which requires an external supply of clean, dry, regulated air (80 PSI +/- 10 PSI).

1.Steam Coil PH Level

The normal PH level for copper type steam coils must be maintained between a value of 8.5 to 9.5. For steel type steam coils the PH level must be maintained between a value of 9.5 to 10.5. These limits are set to limit the acid attack of the steam coils.

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

2.Steam Requirements - High Pressure

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

Operating Steam Pressure

Maximum

125 psig

 

 

Minimum

100 psig

 

 

Heat Input (Normal Load)

7 Bhp

 

 

Consumption (approximate)

239 lbs/hr

 

 

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 12-inch riser. This will prevent any condensate from draining towards the dryer.

b.The steam supply piping to the dryer must include a 12-inch rise along with a drip trap and check valve. This will prevent any condensate from entering the steam coil.

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Contents ML-78 Retain This Manual In a Safe Place For Future Reference For Your Safety Page Table of Contents Section Procedure for Functional Check of Replacement Section Important InformationSafety Precautions What to do if YOU Smell GASStandards SPECIFICATIONS/COMPONENT Identification SpecificationsSpecifications Component Identification Dryer Rear View Installation Procedures Location RequirementsUNPACKING/SETTING UP Dryer Enclosure Requirements Fresh AIR Supply Page Exhaust Requirements Not be Reduced Anywhere Down Stream of the Dryer Reduced Anywhere Down Stream of the Dryer Page Electrical Information MLG-78 Gas MLS-78 Steam Page Black Positive White Neutral Green Ground Page Electrically Heated Models only Page GAS Information Type of Gas Page Page Steam Information Operating Steam PressureSteam Damper System Compressed Air Supply Air Pressure Page Page Preparation for OPERATION/START-UP Preoperational Tests Page Preoperational Instructions Shut Down Instructions Service SERVICE/PARTS InformationParts Returning Warranty Cards Warranty InformationReturning Warranty Parts Page Routine Maintenance CleaningSteam Dryers Reversing Timer SPIN/DWELL Adjustments Timing LegendData Label LOCATION/INFORMATION Data LabelSerial Number Procedure for Functional Check Replacement Components SectionADC113029