Sterling 882.00294.00, DH1-610-2 3-3 Electrical Connections

Figure 3: Suggested Lift Rigging for Cart Mounted Dryers

ON

OFF

PROCESS

TEMPERATURE DEW POINT

CONTROL POWER

ON OFF

ALARM ALARM Silencer

ALARM HORN

Mounting flange

Hopper mounting flanges on 0.75 and

can drill to match existing machine throat.

Diameter hole:

Notes: and 1.5 cu. ft. (20 & 40 liter) hoppers

are supplied blank so the customer

3.0 cu. ft. (80 liter) hoppers and larger

are not supplied with a cast flange

(

as shown

)

.

E

E

F

Caution! When using a hoist to move a machine mounted dryer, ALWAYS attach

chains to the three (3) locations/lifting points on the unit! Moving the

Dryer without the chains attached to all of the lifting points will cause the

unit to become unstable and may cause damage to the Dryer and/or injury

to personnel!

3-3 Electrical Connections

When making electrical connections to your unit, ensure that you take into consideration and

make arrangements for the following:

• A qualified electrician should make all electrical connections.

• Fulfill all national, state, and local safety and electrical code requirements.

• The serial tag lists voltage, phase, and amp draw information:

• Line voltage must be within plus or minus ten percent (±10%) of the

voltage listed on the serial tag, or damage may occur. Phase imbalance

must be less than two percent (2%).

• Connect main power to the dryer at the disconnect or terminals in the upper right

corner of the control enclosure.

• Install a fused disconnect with a lockout feature in the power main leading to the dryer.

• The power drop must include a ground wire.

• Make sure all electrical connections are tight.

Portable Drying/Conveying Systems Chapter 3: Installation 17 of 63

Contents

Main SDAA 25-100 Small Dryer With AP-1 Controls Shipping Information Table of Contents CHAPTER 1: SAFETY ................................................................6 CHAPTER 2: FUNCTIONAL DESCRIPTION............................ 11 CHAPTER 3: INSTALLATION ..................................................15 CHAPTER 4: OPERATION .......................................................21 CHAPTER 5: MAINTENANCE.................................................. 40 CHAPTER 6: TROUBLESHOOTING........................................ 48 CHAPTER 7: APPENDIX ..........................................................55 Chapter 1: Safety 1-1 How to Use This Manual DANGER! 1-2 Safety Tag Information 1-3 Warnings and Precautions 1-4 Responsibility Page Page Chapter 2: Functional Description 2-1 Models Covered in This Manual 2-2 General Description 2-3 Standard Features 2-4 Options 2-5 Safety Devices and Interlocks Page Chapter 3: Installation 3-1 Uncrating the Equipment 3-2 Rigging and Placing the Dryer Note: Floor Mounted Dryers can be lifted by hoist or fork lift. USE FORK LIFT TRUCK USE Overhead Crane 3-3 Electrical Connections 3-4 Setup Procedures Checking for Proper Blower Rotation Drying Hopper Air Trap Considerations (If Equipped) Installing the Optional Aftercooler 3-5 Initial Start-up Pre-Startup Checks Starting Up the Dryer The process blower starts. Auto-Tuning the Dryer (Requires Supervisory Password) Page Chapter 4: Operation 4-1 Controller Description and Operation Page Page Page Page Page Page Page Page Page Page Page Page Page Page Restoring the WATLOW Redundant Safety Controller to Factory Setup Entering Operating Parameters to Select Modes Figure 6: Setting List for Redundant Safety Controller (WATLOW), Part No. A0568961 4-2 System Operation Procedures process. regeneration. beginning. 4-3 Shutting Down the Dryer Chapter 5: Maintenance 5-1 Preventative Maintenance Schedule Portable Drying/Conveying Systems Chapter 5: Maintenance 40 of 63 replacement date inspection 5-2 Preventative Maintenance Servicing Process Air Filters Recommendations for Cleaning and Replacing Filters Figure7: Air Filter Location and Disassembly Vacuuming Cleaning with Compressed Air Servicing the Dew Point Monitor 5-3 Corrective Maintenance Symptoms of Worn Desiccant + FIRST AID + In case of eye contact, immediately flush eyes with plenty of water for at least 15 minutes. SEE A PHYSICIAN IMMEDIATELY IF IRRITATION PERSISTS. Replacing Worn Desiccant Figure 8: Desiccant Bed Location and Disassembly Figure 9: Required Desiccant Amounts Replacing the regeneration heaters Procedures (see figure 8). Replacing the Process Heater Figure 10: Process Heater Location and Disassembly Procedures Replacing/Cleaning the Cooling Coils Figure 11: Cooling Coil Location and Disassembly Page Chapter 6: Troubleshooting 6-1 Introduction Page Page Page Page Page 6-2 Determining Temperature Controller Errors or Sensor Errors Using a Thermocouple Chapter 7: Appendix 7-1 Warranty Warranty Specifications Warranty Restrictions Warranty Liabilities 7-2 Optional Components 7-3 Technical Specifications Annex B Information Aftercooler Design Specifications Portable Drying/Conveying Systems Chapter 7: Appendix 57 of 63 7-4 Drawings and Diagrams Figure 12: Standard Model (180F to 250F) Air Flow Schematic Page Figure 14: Low Heat Model (120F to 250F) Air Flow Schematic 7-5 Spare Parts List Figure 15: Level 1 Spare Parts List (Electrical & Mechanical) Portable Drying/Conveying Systems Chapter 7: Appendix 60 of 63 Page 7-6 Returned Material Policy 7-7 Dryer Identification (Serial Number) Tag 7-8 Technical Assistance Portable Drying/Conveying Systems Chapter 7: Appendix 63 of 63 Parts Department Service Department Sales Department