Summary of Contents for AEC TDH-6 Series
- Page 1 TDH-6 Series Large Hot Oil Temperature Control Units Operation and Installation Manual Important! Read Carefully Before Attempting to Install or Operate Equipment Part No. 682.91539.00 Bulletin No. AE1-650.1...
- Page 2 ________________ ________________ ________________ ________________ ________________ AEC, Inc is committed to a continuing program of product improvement. Specifications, appearance, and dimensions described in this manual are subject to change without notice. © Copyright AEC, Inc. 2023 All rights reserved. Effective 6/26/2023 Part No.
- Page 3 Safety Considerations AEC’s TDH-6 Series large hot oil temperature control units are designed to provide safe and reliable operation when installed and operated within design specifications, following national and local safety codes. To avoid possible personnel injury or equipment damage when...
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Page 4: Table Of Contents
If the Shipment is Not Correct ............18 Returns ..................18 Installation .............. 19 Work Rules ................... 19 Installation Requirements .............. 19 Connecting Piping ................. 20 Making Electrical Connections ............26 Page 4 TDH-6 Series Hot Oil Large Temperature Control Units... - Page 5 Preventive Maintenance ........46 Periodic Checks ................46 Routine Servicing ................47 Draining the Unit for Storage ............50 Corrective Maintenance ..............50 Maintaining the Pump ..........See Addendum Troubleshooting ............. 52 TDH-6 Series Hot Oil Large Temperature Control Units Page 5...
- Page 6 Charts and Figures TDH-6 Series Hot Oil Large Temperature Control Unit and Specifications TDH-6 Unit Piping Setup Typical Flow Schematic Typical E5CK Graphic and Button Control Panel Control Panel Switches System Status Board Indicators Page 6 TDH-6 Series Hot Oil Large Temperature Control Units...
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Page 7: General Information
General Information Introduction Your AEC TDH-6 Series hot oil temperature control unit circulates thermal transfer-type oil through your process and to precisely, automatically, and reliably maintain it at a temperature you can select. The operating range of your temperature control unit is from 100°F to 550°F (38°C to 288°C). -
Page 8: Models Covered
Models Covered This manual lists installation, operation, and maintenance instructions for the TDH-6 Series hot oil large temperature control unit. Model numbers are listed on the serial tag. A model number followed by indicates a specially constructed unit, and not all information in this manual may apply. -
Page 9: Available Options
All models are built to provide full or partial heat as required by the process and determined by the controller, to provide more precise control. TDH-6 Series Hot Oil Large Temperature Control Units Page 9... - Page 10 Each Fulflo is factory preset to limit system pressure as specified by the customer. It must not be tampered with in any way. Page 10 TDH-6 Series Hot Oil Large Temperature Control Units...
- Page 11 Cooling Optional The AEC-designed shell and tube heat exchanger is provided as optional equipment in this unit. The design features U-tube construction and copper-nickel tubes for durability and optimal heat transfer.
- Page 12 AEC stocks many lengths of flexible metal hose; the part number is 572-16969. State the length of hose you want when ordering. WARNING Component failure may result in high-temperature oil spray, causing serious injury or death. Make sure hoses, valves, and other components installed in your process can withstand maximum temperature and pressure of the TDH-6 unit;...
- Page 13 Failure to purge the system of air before heating may result in serious injury or critical system and equipment damage. Make sure you properly purge the system of air before starting the heater cycle. TDH-6 Series Hot Oil Large Temperature Control Units Page 13...
- Page 14 • 40 gallons (151 liters) on 6017L & 6017M units • 65 gallons (246 liters) on 6017P & 6017V units. The tank permits thermal expansion of the heat transfer fluid, and provides make-up fluid. Page 14 TDH-6 Series Hot Oil Large Temperature Control Units...
- Page 15 WARNING The reservoir tank may cause serious injury if it ruptures from not being properly vented. Make sure that the reservoir tank is always properly vented to prevent tank rupture. TDH-6 Series Hot Oil Large Temperature Control Units Page 15...
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Page 16: Specifications
3,200 1,452 ♠ The actual shipping weights may vary based on options selected. The shipping weights listed are the maximum shipping weights for standard units of the listed cabinet size. Page 16 TDH-6 Series Hot Oil Large Temperature Control Units... -
Page 17: Shipping Information
Shipping Information Unpacking and Inspection You should inspect your AEC TDH-6 Series hot oil large temperature control unit for possible shipping damage. If the container and packing materials are in re-usable condition, save them for reshipment if necessary. Thoroughly check the equipment for any damage that might have occurred in transit, such as broken or loose wiring and components, loose hardware and mounting screws, etc. -
Page 18: If The Shipment Is Not Complete
Notify AEC, Inc. immediately of the shortage. If the Shipment is Not Correct If the shipment is not what you ordered, contact the AEC, Inc. parts and service department immediately: call 1 (847) 273- 7700. Include the order number and item. Hold the items until you receive shipping instructions. -
Page 19: Installation
The area surrounding the unit must be free of obstructions to ensure proper ventilation of internal components. Allow a minimum clearance of at least 30 inches (76 cm). TDH-6 Series Hot Oil Large Temperature Control Units Page 19... -
Page 20: Connecting Piping
Do not install process or water supply/drain piping smaller than the fittings on the unit. If the water supply piping is larger than unit fittings, reduce the pipe size at the unit. Page 20 TDH-6 Series Hot Oil Large Temperature Control Units... - Page 21 Because your TDH-6 unit is not fitted with casters, it should be secured to the floor with the appropriate hardware. You can purchase high-quality flexible metal hose from AEC, Inc to allow for thermal expansion of the process piping; state the length you want when ordering.
- Page 22 55-gallon (208-liter) drum. This practice ensures that overflow will not create a hazard to personnel. Remember: All external piping must be supported independently of the TDH-6 unit. Page 22 TDH-6 Series Hot Oil Large Temperature Control Units...
- Page 23 Make sure lines and connectors have a service rating of at least 100 psig (689.5 kPa/6.9 bars), and a temperature rating at least equal to the maximum operating temperature of your 6017 unit. TDH-6 Series Hot Oil Large Temperature Control Units Page 23...
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Page 24: Typical Flow Schematic
• Return Valve - closed for purge/ open for run/ closed for pump reverse. • Reservoir Tank - Open to atmosphere at all times, unless nitrogen blanket provisions are present. Page 24 TDH-6 Series Hot Oil Large Temperature Control Units... - Page 25 4.) Once all of the air has been replaced with fluid, and only oil is being dumped into the reservoir; close the vent valve. 5.) Open the isolation valve that is returning the oil from the process. TDH-6 Series Hot Oil Large Temperature Control Units Page 25...
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Page 26: Making Electrical Connections
Operators should not have to squeeze around the TDH-6 unit to reach disconnects, especially in case of emergency. • When running conduit whips to the TDH-6 unit, make sure that whips are routed away from hot piping. Page 26 TDH-6 Series Hot Oil Large Temperature Control Units... - Page 27 Run electrical connections to the supply terminals from either side of the unit. Make sure that all three phases are wired correctly. The pump runs backwards if not wired properly. TDH-6 Series Hot Oil Large Temperature Control Units Page 27...
- Page 28 - Notes - Page 28 TDH-6 Series Hot Oil Large Temperature Control Units...
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Page 29: Startup Preparations
100°F (38°C) and switch unit into the "Auto" mode. As the oil warms up, viscosity will decrease, and the pressure will fall. 9. In 2-minute intervals increase the setpoint to 150°F (66°C) and 200°F (93°C). TDH-6 Series Hot Oil Large Temperature Control Units Page 29... - Page 30 5. As fluid is drawn out of the reservoir tank to fill the process, the fluid level will fall in the tank. Continue to add fluid to maintain the level about 4 inches from the bottom of the sight glass. Page 30 TDH-6 Series Hot Oil Large Temperature Control Units...
- Page 31 NOTE: If all traces of water are not removed from the system, severe cavitation may occur at elevated temperatures. Indications are a “gravely” sounding pump, fluctuating or dropping pressure, or rapidly rising fluid level in the expansion tank. Repeat Steps #9-12 if this occurs. TDH-6 Series Hot Oil Large Temperature Control Units Page 31...
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Page 32: Shutting Down The Unit
The total capacity of the tank can be found on page 14. If it appears that the tank may overfill, connect a line from the port of the reservoir tank to FILL a clean auxiliary container. Page 32 TDH-6 Series Hot Oil Large Temperature Control Units... - Page 33 - Notes - TDH-6 Series Hot Oil Large Temperature Control Units Page 33...
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Page 34: Using Controls And Indicators
Built-in range of operation on the controller is 0°F to 550°F (-18ºC to 288ºC). Figure 4 Typical E5CK Graphic and Button Control Panel Page 34 TDH-6 Series Hot Oil Large Temperature Control Units... -
Page 35: Identifying M2B Controller Panel Components
COOL point and is being cooled. Display Indicators TO PROCESS Indicator indicator is on when the TO PROCESS PROCESS screen on the controller displays the temperature of the outgoing fluid. TDH-6 Series Hot Oil Large Temperature Control Units Page 35... - Page 36 A delivery probe failure displays on the screen, and a return probe failure displays on the screen. The alarm resets after the failed probe is replaced. Page 36 TDH-6 Series Hot Oil Large Temperature Control Units...
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Page 37: Using M2B Controller Keys
LED screens. Important! Do not change any of the control settings without consulting the AEC Service Department. The AEC, Inc. warranty does not cover TCU failures from tampering with controller settings! TDH-6 Series Hot Oil Large Temperature Control Units Page 37... - Page 38 INDEX Key INDEX Each press of the key advances the screen to the INDEX next menu item. Refer to your AEC Stand Temperature Control Owner’s Manual for a list of functions available using this key. ALARM HI ALARM Key ALARM...
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Page 39: Identifying Control Panel Switches
Each key press increments to the next available function. The screen returns to delivery temperature after thirty (30) seconds of inactivity. Refer to your AEC Standard Temperature Control Owner’s Manual for a list of menus available using this key. - Page 40 Never switch to AUTO mode when filling or venting the unit, except as described in the Unit Startup chapter. Improper switching can seriously damage the heater, as it could become energized with air in the system. Page 40 TDH-6 Series Hot Oil Large Temperature Control Units...
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Page 41: Identifying System Status Board Indicators
POWER ON PUMP REVERSE AUTO PUMP FORWARD BYPASS RELIEF VALVE HEATER DELIVERY PRESSURE SAFETY THERMO HEAT STRAINER EXCHANGER HIGH VENT LEVEL COOL RETURN SOLENOID FILL VENT DRAIN SOLENOID LEVEL RES. TANK TDH-6 Series Hot Oil Large Temperature Control Units Page 41... - Page 42 Select the unit operating mode by using the selection switch. Power On Mode Indicator Light mode indicator light illuminates to indicate that the Power On control circuit is energized in the unit. Page 42 TDH-6 Series Hot Oil Large Temperature Control Units...
- Page 43 This is an alarm condition, so the audible alarm activates to notify you of the safety thermo fault, and disables controller outputs, permitting the pump to continue to circulate fluid to avoid damage. TDH-6 Series Hot Oil Large Temperature Control Units Page 43...
- Page 44 This is an alarm condition, so the audible alarm activates to notify you of the low fluid level fault, and the controller outputs are disabled. Always correct the alarm condition before returning to normal operation! Page 44 TDH-6 Series Hot Oil Large Temperature Control Units...
- Page 45 - Notes - TDH-6 Series Hot Oil Large Temperature Control Units Page 45...
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Page 46: Preventive Maintenance
• Check for leaks developing at the pump seal, gaskets, and other similar locations. • Check the pump drive V belt for any wear. • Check the reservoir tank vent for any obstructions. Page 46 TDH-6 Series Hot Oil Large Temperature Control Units... -
Page 47: Routine Servicing
This is especially true for the pump. It relies on free air circulation for proper cooling. Check the motor air intake screen for any accumulation of dirt; clean it as needed. TDH-6 Series Hot Oil Large Temperature Control Units Page 47... - Page 48 • Inspect the screen in the Y strainer for accumulations of debris. Clean as needed. Servicing the Unit Every Three Months Remove and clean the screen in the Y-strainer. Replace the screen if it is damaged. Page 48 TDH-6 Series Hot Oil Large Temperature Control Units...
- Page 49 1/3 full of grease and outboard bearing cavity should be about 1/2 full of grease.) Note: Bearing is 1/3 full when only one side of bearing is completely full of grease. 3. Assemble motor. TDH-6 Series Hot Oil Large Temperature Control Units Page 49...
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Page 50: Draining The Unit For Storage
Note: If the pump motor wiring is disconnected for removal from the unit, you must check the actual direction of rotation when the motor is rewired to the unit. Page 50 TDH-6 Series Hot Oil Large Temperature Control Units... - Page 51 TDH-6 Series Hot Oil Large Temperature Control Units Page 51...
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Page 52: Troubleshooting
Check heater tank for scorched/ discolored paint. Check Heater burnout. resistance on all three (3) legs of heater with an ohmmeter. Replace heater as needed. Page 52 TDH-6 Series Hot Oil Large Temperature Control Units... - Page 53 Replace as required. Drain water from low point in Water in fluid. piping (see Chapter 3), or boil Noisy pump. water off. Drain and flush system. Replace Severely degraded fluid. fluid. TDH-6 Series Hot Oil Large Temperature Control Units Page 53...
- Page 54 Service Notes Page 54 TDH-6 Series Hot Oil Large Temperature Control Units...
- Page 55 Service Notes TDH-6 Series Hot Oil Large Temperature Control Units Page 55...
- Page 56 Service Notes Parts Department Page 56 TDH-6 Series Hot Oil Large Temperature Control Units...
- Page 57 AEC, Inc 1100 E. Woodfield Road, Suite 588 Schaumburg, IL 60173 [ 847 ] 273-7700 • Fax [ 847 ] 273-7812 TDH-6 Series Hot Oil Large Temperature Control Units Page 57...