113363 - 37
www.adclaundry.com
27
H. STEAM INFORMATION
It is your responsibility to have ALL plumbing connections made by a qualified professional to ensure 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: In standard format this dryer is manufactured with a pneumatic (piston) damper system, which
requires an external supply of air (80 psi +/- 10 psi [5.51 bar +/- 0.68 bar]). This dryer may
be provided with an optional steam solenoid valve, in which case, no pneumatic steam damper
system is provided. Refer to Steam Damper Air System Connections on page 28.
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 – 1-1/4” N.P.T. supply line connection – qty. one (1) at top manifold.
Return – 1-1/4” N.P.T. return line connection – qty. one (1) at bottom manifold.
Operating Steam Pressure
Maximum
125 psig*
862 kPa
Heat Input (Normal Load)
13 Bhp
Consumption (Approximate)
450 lb/hr
204 kg/hr
Shaded areas are stated in metric equivalents
* The minimum operating pressure for optimum results is 100 psig (689.47 kPa).
3. Installation Instructions
To ensure an adequate supply of steam is provided, be sure that the steam supply line and steam return line
are sized and laid out as stipulated in this manual. Inadequate steam supply line and steam return line 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 presence of condensate in the steam supply line 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 (30.48 cm) riser. This will prevent any condensate from draining towards the
dryer.
b. The steam supply line to the dryer must include a 12-inch (30.48 cm) riser 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.
Содержание ML-122
Страница 52: ...ADC Part No 113363 37 09 20 21 ...
