American Dryer Corp. Gas DSI/Electric/ Steam AD-78 II - Manual (Page 34)

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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 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 ADS-78 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 3.
IMPORTANT: STEAM 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 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” supply line connection – qty. one (1) at top manifold.
b. Return .. 1” return line connection – qty. one (1) at bottom manifold.
2. Installation Instructions
To insure an adequate supply of steam is provided, be sure that the steam supply lines and steam return lines
are sized and laid out as stipulated in this manual. Inadequate steam supply 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.
Operating Steam Pressure
Maximum 125 psig 861.84 kPa
Minimum 100 psig* 689.47 kPa
Heat Input (Normal Load) 7 Bhp
Consumption (Approximate) 238.7 lbs/hr 108.3 kg/hr
Shaded areas are stated in metric equivalents
* Minimum operating pressure for optimum results.