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:
31
4.
Steam Damper Air System Connections
The dryer is manufactured with a pneumatic (piston) damper system, which requires an external supply of
compressed air. The air connection is made to the steam damper solenoid valve, which is located at the
rear inner top area of the dryer just in front of the electric service relay box. (Refer to the bottom
illustration on page 32.)
a. Air Requirements
Shaded areas are stated in metric equivalents
b. Air Connection
Air connection to system – 1/8” N.P.T.
c. No air regulator or filtration is provided with the dryer. External regulation/filtration of 80 psi (5.51 bar)
must be provided. It is suggested that a regulator/filter gauge arrangement be added to the compressed
air line just before the dryer connection. This is necessary to ensure that correct and clean air pressure
is achieved.
5. Steam Damper System Operation
The steam damper as shown in the top illustration on page 32, allows the coil to stay constantly charged
eliminating repeated expansion and contraction. When the damper is opened, the air immediately passes
through the already hot coil, providing instant heat to start the drying process. When the damper is closed,
ambient air is drawn directly into the basket (tumbler), allowing a rapid cool down.
Diagram 1 shows the damper in the heating (open) mode, allowing heat into the basket (tumbler).
Diagram 2 shows the damper in the cool down (closed) mode, pulling ambient air directly into the basket
(tumbler) without passing through the coils.
NOTE: With the dryer off or with no air supply, the steam damper is in cool down mode as shown in
Diagram 2 at the top of page 32.
Compressed Air Supply Air Pressure
Normal 80 psi
5.51 bar
Minimum Supply 70 psi
4.82 bar
Maximum Supply 90 psi
6.21 bar
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