American Dryer Corp ML-78III

The neutral will only be used on 4-wire service. This is typical for 380-416V, 50 Hz.

A ground lug is provided in the rear electrical box to connect your service ground.

b. 3-Phase (3ø) Wiring Connections/Hookup

The electrical connections on ALL 3-phase (3ø) gas and steam dryers are made into the rear service

box located at the upper left area of the dryer. The electrical connections are made at the power

distribution block located in the service box. The ground connection is made to the copper lug, also

provided in this box. To gain access, the service box cover must be removed.

FOR 110V APPLICATIONS FOR 208-230/240V APPLICATIONS

Contents

Main ML-78III (Gas/DSI/Phase 7 with F.S.S.) Installation Manual Retain This Manual In A Safe Place For Future Reference Important ML-78 Phase 7 (DSI) Page Page Table of Contents Page SECTION I IMPORTANT INFORMATION IMPORTANT: The dryer must be transported and handled in an upright position at ALL times. A. RECEIVING AND HANDLING B. SAFETY PRECAUTIONS Page Gas SECTION II SPECIFICATIONS/COMPONENT IDENTIFICATION A. SPECIFICATIONS Page Page Page SECTION III INSTALLATION PROCEDURES A. LOCATION REQUIREMENTS IMPORTANT: The dryer must be installed on noncombustible floors only. IMPORTANT: Dryer should be located where a minimum amount of exhaust duct will be necessary. B. UNPACKING/SETTING UP IMPORTANT: Dryer must be transported and handled in an upright position at ALL times. C. DRYER ENCLOSURE REQUIREMENTS D. FRESH AIR SUPPLY REQUIREMENTS E. EXHAUST REQUIREMENTS Page Page Page F. ELECTRICAL INFORMATION IMPORTANT: For personal safety and proper operation, the dryer must be grounded. GAS MODELS SERVICE ELECTRICAL SERVICE SPECIFICATIONS (PER DRYER) SERVICE VOLTAGE PHASE WIRE APPROX. AMP DRAW MINIMUM WIRE SIZE Single-Phase Electrical Lead Connections Page G. GAS INFORMATION TYPE OF GAS NATURAL LIQUID PROPANE TYPE OF GAS Page Page H. PREPARATION FOR OPERATION/START-UP I. PREOPERATIONAL TESTS Page J. PREOPERATIONAL INSTRUCTIONS K. SHUTDOWN INSTRUCTIONS SECTION IV SERVICE/PARTS INFORMA TION A. SERVICE B. PARTS SECTION V WARRANTY INFORMATION A. RETURNING WARRANTY CARDS B. WARRANTY C. RETURNING WARRANTY PARTS Page SECTION VI ROUTINE MAINTENANCE A. CLEANING SUGGESTED CLEANING SCHEDULE B. ADJUSTMENTS C. LUBRICATION SECTION VII REVERSING TIMER SPIN/DWELL ADJUSTMENTS TIMING LEGEND Page Page SECTION IX Page SECTION X MANUAL RESET BURNER HI-LIMIT INSTRUCTIONS WARNING: Discontinue power to dryer before attempting to reset hi-limit. A. PHASE 7 B. DUAL TIMER F.S.S. In Action FIRE SUPPRESSION SYSTEM (F.S.S.) INSTALLATION Typical water supply... Page F.S.S. Theory of Operation SYSTEM RESET NON-COIN F.S.S. CHECK PROCEDURE F.S.S. Parts Break Down