Preparation For Operation/Start-Up ___
The following items should be checked before attempting to operate the dryer:
•Read all “CAUTION,” “WARNING,” and “DIRECTION” labels attached to the dryer.
•Check incoming supply voltage to be sure that it is the same as indicated on the dryer data label. In the case of 208 VAC or 230/240 VAC, the supply voltage must match the electric service specifications of the data label exactly.
•Gas Models – check to ensure that the dryer is connected to the type of heat/gas indicated on the dryer data label.
•Gas and Electric Models – the sail switch damper
assembly was installed and adjusted at the factory prior to shipping. However, each sail switch adjustment must be checked to ensure that this important safety control is functioning. (Refer to Preoperational Tests for Sail Switch Adjustment).
•Gas Models – be sure that all gas shutoff valves are in the open position.
•Be sure all side and base panels are on the dryer.
•Check all service doors to ensure that they are closed and secure.
•Be sure the lint door is securely in place.
•Rotate the basket (tumbler/drum) by hand to be sure it moves freely.
•Check bolts, nuts, screws, terminals, and fittings for security.
•Steam Models – check to ensure air supply (80 psi [5.52 bar]) is connected to the dryers.
•Steam Models – check to ensure all steam shutoff valves are open.
•Steam Models – check steam damper operation.
•Check basket (tumbler) bearing setscrews to ensure they are all tight.
Preoperational Tests __________________
All dryers are thoroughly tested and inspected before leaving the factory. However, a preoperational test should be performed before the dryer is publicly used. It is possible that adjustments have changed in transit or due to marginal location (installation) conditions.
Turn on electric power to the dryer.
Open all shutoff valves (gas and steam models only).
Refer to the Operating Instructions for starting your particular model dryer.
Gas Dryers
When a gas dryer is first started (during initial
Note
During the purging period, check to be sure that all
!gas shutoff valves are open.
Gas dryers are equipped with an ignition system, which has internal diagnostics. If ignition is not established within three
(3)times, the heat circuit in the module will lock out until it is manually reset. To reset the ignition system, open and close the main door and restart the dryer.
A gas pressure test should be taken at the gas valve pressure tap of each dryer to ensure that the water column (W.C.) pressure is correct and consistent.
Note
Water column pressure requirements (measured at
!the pressure tap of the gas valve body):
Natural Gas | 3.5 Inches (8.7 mb) W.C. |
Liquid Propane (L.P.) Gas | 10.5 Inches (26.1 mb) W.C. |
Important
There is no regulator provided in an L.P. dryer. The
!water column pressure must be regulated at the
source (L.P. tank), or an external regulator must be added to each dryer.
Steam Dryers
Check to ensure that steam damper is functioning properly
The steam damper should not “slam” (open or closed) when it reaches the end of (piston) travel. Additionally, the steam damper should not bind and/or stop during travel. If either of these conditions exist refer to air adjustment instructions in the Steam Information section.
Electrically Heated Dryers
Check to ensure that electric oven/contactor assembly is activating.
Make a complete operational check of all safety related circuits:
•Door switch(es)
•
•Sail switch (for gas and electric models only)
Note
To check for proper sail switch operation (for gas and
!electric models only), open the main door and while 
holding main door switch plunger in, start dryer. Dryer should start but heat circuit should not be activated (on). If the heat system is activated, the sail switch is improperly adjusted and must be adjusted by bending the actuator arm of the sail switch toward the burner box. If the actuator arm is bent too far toward the burner box of the dryer, the dryer may not have heat when needed. After any adjustment to the sail switch, the above procedure must be repeated to verify proper operation of the sail switch.
The dryer should be operated through one (1) complete cycle to ensure that no further adjustments are necessary and that all components are functioning properly.
Basket (Tumbler) Coating
The basket (tumbler) is treated with a protective coating. We suggest dampening old garments or cloth material with a solution of water and nonflammable mild detergent and tumbling them in the basket (tumbler) to remove this coating.
Make a complete operational check of all operating controls.
For microprocessor models check controller (computer) programs/selections. Each microprocessor controller (computer) has been preprogrammed by the factory with the most commonly used parameter (program) selections. If computer program changes are required, refer to the computer programming manual, which was shipped with the dryer.
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