Reversing Relay Panel
Lifting the control door will reveal the reversing relay box. Located on the back of the relay box is the reversing relay panel. Included on this panel is a
Steam Coil and Damper System
The steam coil is constantly charged, thereby eliminating repeated expansion and contraction and also provide instant heating to start the drying process. The steam damper, located on top of the steam coil, is the only temperature controlling device in this system. When the steam damper is open, ambient air is drawn through the coil providing heat to the dryer. When the steam damper is closed, ambient air is drawn directly into the tumbler, bypassing the coil, allowing a rapid cool down.
NOTE: With the dryer off or no air supply to the damper piston, the damper is in the cool down mode.
Steam Coil pH Level
NOTE: 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.
Gas Burner Assembly
Gas heated dryers are equipped with a gas burner assembly consisting of four burner tubes, gas valve, ignitor, flame- probe, sail switch, and
Drive Motor
The T.E.F.C. drive motor is located in the right front hand corner of the dryer. It sits on an adjustable base so that the motor can be easily adjusted to the left or right.
Blower Motor and Impellor (Gas and Steam)
The impellor is shaft driven. The blower motor drives the shaft on which the impellor is mounted.
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