4.3
Owner's of the ADC Clothes Dryer AD-170SE gave it a score of 4.3 out of 5. Here's how the scores stacked up:
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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.
d. Shutoff valves for each dryer should be installed in the supply line, return line, and drip trap return line.
This will allow the dryer to be isolated from the supply main and the return main if the dryer needs
maintenance work.
e. Install an inverted bucket steam trap and check valve at least 12-inches (30.48 cm) below the steam
coil as close to the coil as possible.
An inverted bucket steam trap with a capacity of 2,000 lb (907.18 kg) of condensate per hour @ 125 psi
(8.62 bar) is required for each dryer.
f. A 3/4-inch (19.05 mm) vacuum breaker should be installed. This will save energy and provide for the
safety of the operator and maintenance personnel.
g. Dryers with optional solenoid valve must be mounted with coil positioned directly above the valve body.
h. Water pockets in the supply line, caused by low points, will provide wet steam to the coil possibly
causing steam coil damage.
ALL horizontal runs of steam supply piping should be pitched 1/4-inch
(6.35 mm) for every one foot (0.30 meters) back towards the steam supply header causing the condensate
in the line to drain to the header. Install a bypass trap in any low point to eliminate wet steam.
STEAM DAMPER SYSTEM
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