ADC AD-200 IMPORTANT: DO NOT OVERTIGHTEN V-BELTS.

56

7) Remove the 1/4” x 1/4” x 1-3/4” (6.35 mm x 6.35 mm x 4.45 cm) key on the blower (squirrel cage

fan) motor shaft.

a) Slide the blower (squirrel cage fan) motor off the shaft.

NOTE:Install this 1/4” x 1/4” x 1-3/4” (6.35 mm x 6.35 mm x 4.45 cm) key to the fan shaft beforeinstalling the new blower (squirrel cage fan).

8) To install new blower (squirrel cage fan), reverse above procedure (Step #7 thru Step #1).

d. V-Belt Replacement

1) Discontinue electrical power to the dryer.

2) Loosen the bolts securing the blower (squirrel cage fan) motor.

a) Ease off on the tension bolt.

3) Slide the blower (squirrel cage fan) motor forward.

4) Remove and replace V-belts.

5) Tighten and secure the tension bolt.

IMPORTANT: DO NOT OVERTIGHTEN V-BELTS.

6) Using a straight edge, make certain that the motor pulley and V-belts are aligned straight.

7) Tighten and secure bolts from motor to motor base.

8) Reestablish electrical power to the dryer.

e. Blower (Squirrel Cage Fan) Shaft Replacement

The procedure to replace the Blower (squirrel cage fan) Shaft is the same procedure used to replace the

Pillow Block Bearing with Shroud (refer to page 57 and page 58).

3. Blower (Squirrel Cage Fan) Electrical Components

a. Blower (Squirrel Cage Fan) Controls and Overloads

1) Thermal Magnetic Starter (TMS)

The TMS is used as a safety device to protect the motor from starting in a locked rotor condition.

The overload has a dial setting on the face of the device. To set the overload, refer to your specific

electrical diagrams. The overload is specifically designed for motor applications. It has a current

curve built into it so the initial high current draw by the motor will not trip the overload. On the face

of the overload, there are two (2) push buttons - “START” (Black or Tan - 1) and “STOP” (Red -

0) - the overload has to be in the “START” mode for the motor to run.

Contents

Main Retain This Manual In A Safe Place For Future Reference Important Page Page Table of Contents Page Page Page SECTION I SAFETY PRECAUTIONS Page SECTION II ROUTINE MAINTENANCE A. CLEANING SUGGESTED CLEANING SCHEDULE Page B. LUBRICATION C. ADJUSTMENTS 11 SECTION III SPECIFICATIONS AND DIMENSIONS Gas*Steam* A. SPECIFICATIONS (GAS AND STEAM MODELS) Page SECTION IV INSTALLATION REQUIREMENTS A. ENCLOSURE/AIR SUPPLY/EXHAUST REQUIREMENTS B. ELECTRICAL AND GAS REQUIREMENTS NOTE: Any burner changes must be made by a qualified technician. C. OPERATIONAL SERVICE CHECK PROCEDURE SECTION V COMPONENT DESCRIPTION/REPLACEMENT Page NOTE: THE DSI GAS VALVES ARE NOT FIELD REPAIRABLE. 18 h. Troubleshooting Flowchart - Quick Reference... No Spark And System Does Not Work First Visual Check 19 i. Troubleshooting Flowchart - Quick Reference... Second Visual Check 20 j. Troubleshooting Flowchart - Quick Reference... Third Visual Check B. TROUBLESHOOTING THE DIRECT SPARK IGNITION (DSI) SYSTEM Page NOTE: Preliminary steps - DO NOT omit - to minimize the time required to troubleshoot this system. Page 25 d. Troubleshooting Flowchart - Quick Reference... First Visual Check I (Does Ignitor Spark?) . 26 Second Visual Check (Does Main Burner Ignite?) . 27 f. Troubleshooting Flowchart - Quick Reference... Third Visual Check (Does Main Burner Ignite?) Page NOTE: During the purge period, check to be sure that ALL shutoff valves are open. IMPORTANT: THE GAP SETTING ON THE IGNITOR/FLAME-PROBE ASSEMBLY IS CRITICAL. Page NOTE: To reset the DSI module if it is in the LOCKOUT mode, Ignitor Control Fault will display. Page Page NOTE: During the purge period, check to be sure that ALL shutoff valves are open. IMPORTANT: THE GAP SETTING ON THE IGNITOR/FLAME-PROBE ASSEMBLY IS CRITICAL. Page NOTE: To reset the DSI module if it is in the LOCKOUT mode, Ignitor Control Fault will display. Page C. NATURAL GAS AND LIQUID PROPANE (L.P.) GAS CONVERSION INSTRUCTIONS D. STEAM COIL SYSTEM OPERATION IMPORTANT:Coil failure due to improper PH level will VOID THE WARRANTY. Page Page Page E. SPRINKLER SYSTEM DESCRIPTION Page NOTE: Identify the wires removed for proper reinstallation. Page Page Page F. AIR JET ASSEMBLY Page Page Page Page NOTE: Make certain that the blower (squirrel cage fan) can spin freely. IMPORTANT: DO NOT OVERTIGHTEN V-BELTS. IMPORTANT: DO NOT OVERTIGHTEN V-BELTS. Page Page H. FILTER/REGULATOR ASSEMBLY NOTE: THIS SELF-RELIEVING FEATURE IS NOT DESIGNED TO BLEED THE DOWNSTREAM PRESSURE. I. DOOR SYSTEMS AUTOMATIC DOORS Page Page Page Page Page Page Page Page Page Page Page Page Page Page K. BASKET (TUMBLER) SYSTEM Page Page NOTE: Replace V-belts in matched sets (both belts). IMPORTANT: DO NOT OVERTIGHTEN TURNBUCKLE. IMPORTANT: Both drive wheels should be replaced as a set on the drive shaft assembly. Page Page Page Page Page SECTION VI Page SECTION VII PHASE 7 OPL SYSTEM DIAGNOSTICS A. DIAGNOSTIC (L.E.D. DISPLAY) FAULT MESSAGES Page Page Page Page Page Page SECTION VIII TROUBLESHOOTING Page Page Page Page P. Microprocessor controller (computer) reads Exhaust High Temp Fault... Q. Dryer operates but is taking too long to dry... R. Excessive noise and vibration...