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- American Dryer Corp.
- MLS-460
- User manual
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c. Flexible hoses or couplings
must be
used. The dryer vibrates slightly when it runs and this will cause the steam coil connections to crack if they are hard piped to the supply and return mains.
e. A 3/4” vacuum breaker
should be
installed for each unit in the piping. This will prevent the condensing steam from causing a vacuum inside the coil and possibly damaging the coil.
f. The supply line and return line
should be
insulated. This will save energy and provide for the safety of the operator and the maintenance personnel.
g. Water pockets in the supply line, caused by low points, will provide wet steam to the coil possibly causing steam coil damage.
ALL
horizontal runs of steam supply piping
should be
pitched 1/4-inch (0.08 cm) for every one (1) foot (0.31 m) back towards the steam supply header causing the condensate in the line to drain to the header. Install a bypass trap in any low point to eliminate wet steam.
H. SHUT DOWN INSTRUCTIONS
In the case where the dryer is to be shut down (taken out of service) for a period of time, the following
must be
performed;
1. Discontinue power to the dryer either at the external disconnect switch or the circuit breaker.
2. Disconnect the heat supply: a.
STEAM MODELS ... discontinue steam supply.
1)
SHUT OFF external (location furnished) shut-off valve.
2)
SHUT OFF internal steam valves in the supply lines and the return lines.
27
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Table of contents
- 7 IMPORTANT INFORMATION
- 7 A. Receiving and Handling
- 8 B. Safety Precautions
- 10 SPECIFICATIONS/DIMENSIONS
- 10 A. Specifications
- 11 B. Dimensions
- 12 INSTALLATION PROCEDURES
- 12 A. Reassembly of Dryer
- 15 B. Location Requirements
- 16 C. Internal Air, Electrical, and Water Connections
- 22 D. External Supply Connections
- 26 E. Electrical Requirements
- 29 F. Fresh Air Supply Requirements
- 30 G. Steam Information
- 31 H. Shut Down Instructions
- 32 PRE START-UP
- 32 A. Preparation for Operation
- 33 ROUTINE MAINTENANCE
- 33 A. Cleaning
- 35 COMPONENT SYSTEM DESCRIPTIONS
- 35 A. Tumbler (Basket) Support and Drive System
- 38 B. Main Air Blower and Heat Reclaimer System
- 40 C. Compressed Air System
- 42 D. Safety Devices
- 44 SERVICE/PARTS INFORMATION
- 44 A. Service
- 44 B. Parts
- 45 WARRANTY INFORMATION
- 45 A. Returning Warranty Cards
- 45 B. Warranty
- 45 C. Returning Warranty Parts
- 47 TROUBLESHOOTING
- 47 Troubleshooting TOC
- 48 A. Power Malfunctions
- 59 B. Tumbler (Basket) Section Electrical Malfunctions
- 67 C. Base Section Electrical Malfunctions
- 71 D. Pendant Control Malfunctions
- 74 E. Temperature Sensing
- 77 F. Motors
- 79 G. PLC (Programmable Logic Controller) Error Messages