Steam Information - ADC AD-115DR Installation Manual

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: 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.
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" supply line connection ---- quantity one (1) at top manifold.
Return --- 1-1/4" return line connection ---- quantity one (1) at bottom manifold.
125 psig
174
Shaded areas are stated in metric equivalents
* Minimum operating pressure for optimum results is 100 psig (689 kPa).
** 174 psig (1,200 kPa [12 bar]) with optional one-stage steel steam coil only.
3. Installation Instructions
To ensure that 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,
regulated 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 will cause water hammer and subsequent heat exchanger
(steam coil) failure. The steam supply connection into the main supply line must be made within 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.
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OPERATING STEAM PRESSURE
Heat Input
Maximum*
(Normal Load)
862 kPa
1,200 kPa**
psig**
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Consumption (Approx.)
@ Maximum Pressure
13 Bhp 365 lb/hr
14.5 Bhp** 420 lb/hr**
166 kg/hr
191 kg/hr**
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