American Dryer Corp. ML-170 - Manual (Page 23)

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H. STEAM INFORMATION
It is your responsibility to have ALL steam plumbing connections made by a qualified professional to ensure that the
installation is adequate and conforms to 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 dryer is manufactured with a pneumatic (piston) damper system, which requires an external supply
of clean, dry, regulated air (80 psi ± 10 psi [5.51 bar ± 0.68 bar]). Refer to Steam Damper Air
System Connections, Section H, item 4.
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.