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H. STEAM INFORMATION
It is your responsibility to have all steam plumbing connections made by a qualified professional to assure that the
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 ML-82 is manufactured with a pneumatic (piston) damper system which requires an external
supply of clean, dry, regulated air (80 psi ±10 psi). Refer to Steam Damper Air System Connec-
tions, Section H, item 3.
IMPORTANT: STEAM PH LEVEL – The normal PH level for copper type steam coils must be main-
tained 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 and 10.5. These limits are set to limit the acid attack of
the steam coils.
NOTE: Coil failure due to improper PH level will VOID THE WARRANTY.
1.STEAM REQUIREMENTS, HIGH PRESSURE
a.Inlet 1-1/4 inch supply line connection – qty. one (1) at top manifold.
b.Return 1-1/4 inch return line connection – qty. one (1) at bottom manifold.
2.INSTALLATION INSTRUCTIONS
To ensure an adequate supply of steam in provided, be sure that the steam supply and steam return lines are
sized and laid out as stipulated in this manual. Inadequate steam supply and steam return lines or improper steam
plumbing will result in poor performance and can cause component failure. Clean, dry, regulated steam must be
provided to the dryer.
IMPORTANT: Steam coil failure due to water hammer by wet steam VOIDS THE WARRANTY.
a. The pressure of the condensate in the steam supply will cause water hammer and subsequent heat ex-
changer (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.
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.
Operating Steam Pressure
Maximum 125 psig
Minimum 100 psig*
Heat Input (Normal Load) 7 Bhp
Consumption (Approximate) 239 lbs/hr