Delta-T T Series Instrucciones de funcionamiento

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Delta T Systems, Inc.

2171 Highway 175

Richfield, WI 53076

www.deltatsys.com | www.deltatparts.com

Document #: EM-00002 Revision: D

Document P/N: 900-00001-00

DO NOT DISCARD: IMPORTANT INFORMATION INCLUDING REPLACEMENT PARTS

Service and

Instruction

Manual

T-Series

Oil Temperature

Control Unit

Document #: EM-00002 Revision: D 
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TABLE OF CONTENTS 
SAFETY GUIDELINES ..................................................................................................................................................3 
Safety Symbols and Descriptions..............................................................................................................................3 
Warnings and Precautions ........................................................................................................................................3 
GENERAL INFORMATION............................................................................................................................................5 
Purpose of Instructions..............................................................................................................................................5 
Equipment Description ..............................................................................................................................................5 
Models Covered ........................................................................................................................................................5 
Included Documents..................................................................................................................................................5 
Standard Equipment Features...................................................................................................................................5 
SHIPPING INFORMATION............................................................................................................................................6 
Receiving and Inspection ..........................................................................................................................................6 
Uncrating Your Unit...................................................................................................................................................6 
INSTALLATION..............................................................................................................................................................7 
Work Rules................................................................................................................................................................7 
Unit Location..............................................................................................................................................................7 
Rigging......................................................................................................................................................................7 
Electrical Connections...............................................................................................................................................7 
Piping Connections....................................................................................................................................................8 
Piping Considerations ...........................................................................................................................................8 
Process Connections ............................................................................................................................................8 
Cooling Water Supply Connection (Cooling Option)..............................................................................................8 
Filling the Tank with Oil.........................................................................................................................................9 
FIRST TIME STARTUP PROCEDURE........................................................................................................................10 
Preliminary Operations............................................................................................................................................10 
Startup Procedures..................................................................................................................................................10 
Operation.................................................................................................................................................................11 
Circulation of Oil in the System................................................................................................................................11 
Returning Oil to Tank...............................................................................................................................................11 
Controller Operation................................................................................................................................................12 
Safety Thermostat...................................................................................................................................................12 
ROUTINE MANTENANCE...........................................................................................................................................13 
Motor.......................................................................................................................................................................13 
Pump.......................................................................................................................................................................13 
Heaters....................................................................................................................................................................13 
Reservoir Vent.........................................................................................................................................................13 
Drain Lines ..............................................................................................................................................................13 
Oil….................................................................................................................................................................... …13 
Heat Exchanger.......................................................................................................................................................14 
Strainers..................................................................................................................................................................14 
Connection Lines.....................................................................................................................................................14 
Troubleshooting Guide.................................................................................................................................................15 

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SAFETY GUIDELINES

SAFETY SYMBOLS AND DESCRIPTIONS

High Voltage Hazard

The equipment is supplied with 3-phase electrical power. Components inside this equipment may

have live power. Use caution when servicing this equipment.

Hot Surface Hazard

This equipment has the ability to operate above 212°F (100°C). The surface of the equipment’s

cabinet and connected piping may reach excessive temperatures. Use caution when servicing

this equipment.

Caution

This equipment can cause a potentially hazardous situation. If caution is not taken, there is a

potential for injury and death or property damage.

WARNINGS AND PRECAUTIONS

The Delta T Systems Oil Temperature Control Unit is designed to provide safe and reliable operation when installed

and operated within design specifications, following national and local safety codes.

To avoid possible personal injury or equipment damage when installing, operating or maintaining this equipment, use

good judgment and follow these safe practices:

1. Compliance and recognition of the following precautions are the sole responsibility of

the user of this equipment.

2. Do not operate or service this equipment until you have read and understand the

manual supplied with this equipment.

3. Only qualified personnel familiar with the information within this manual should install,

use, or service this equipment.

4. Follow all Safety Codes

5. Wear safety glasses and work gloves.

6. Install and ground equipment per NEC code and local requirements before switching

on main power.

7. Operate equipment within design specifications.

8. Unrestricted flow of fluids to drain service must be provided.

9. This equipment may contain dangerously hot fluids which may cause components,

cabinets and piping to be a burn hazard. Do not come in contact with hot fluid or piping.

10. Cool equipment down to at least 125°F prior to shutting down and relieve internal

pressure from air and fluid supply before disconnecting or servicing this equipment.

11. When welding or brazing in or around this equipment be sure there is adequate

ventilation. Protect adjacent materials from flame or sparks by shielding with sheet

metal. An approved fire extinguisher should be close at hand and ready for use if

needed.

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12. Do not operate equipment without covers installed and do not jump or bypass electrical

safety controls.

13. Control power switches do not remove power to all terminals. Turn off or disconnect

main power to unit when not in use, or for service.

14. Do not restore power until all tools, test equipment, etc. have been removed and the

panels replaced.

15. Open, tag and lock all disconnects before working on equipment. It is best practice to

remove all the fuses and carry them with you.

16. Make sure the temperature control unit is properly grounded before switching power

on.

17. Disconnect and lock out input power before servicing this equipment.

18. Shut off equipment using main electrical disconnect.

19. Do not replace the breather plug on the inside of the unit or the breather on the

fill pipe on the outside of the unit with a plug or a cap. Never create conditions

which would allow the reservoir tank to be pressurized.

20. Do not operate or allow equipment to run unattended!!

Document #: EM-00002 Revision: D

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GENERAL INFORMATION

PURPOSE OF INSTRUCTIONS

These instructions are furnished to simplify and minimize your work of operating and maintaining Delta T Systems

Temperature Control Units.

Your acquaintance with the construction and characteristics of these units will help you obtain optimum performance,

reduce shutdowns and increase service life.

Some units may be modified for specific applications from those described in this bulletin and other changes may be

made without notice.

EQUIPMENT DESCRIPTION

Delta T Systems Oil Temperature Control Unit provides reliable and accurate temperatures up to 550°F (see equipment

specs). They are available in sizes up to 300KW and are self-contained, fully assembled and ready to use.

A properly installed, operated, and maintained unit will provide many years of reliable operation. To get the most

satisfaction from your new portable temperature control unit, please read and follow the instructions in this manual.

MODELS COVERED

This manual provides operation, installation and maintenanceinstructions for Delta T Systems T-series Oil Temperature

Control Units.

Model numbers can be found on the unit’s nameplate. If contacting Delta T Systems, please have your model

number and serial number available.

Model numbers containing an “X”a specially constructed custom unit, and not all information in this manual may apply.

For any custom unit shipped with additional documentation that conflicts with this manual, the unit-specific

documentation overrides.

INCLUDED DOCUMENTS

The following documents are included for the operation and maintenance, of your Delta T Systems Oil Temperature

Control Unit and internal components.

•This manual

•Electrical schematic

•Flow schematic

STANDARD EQUIPMENT FEATURES

•Microprocessor-Based PID Controller

•Over Temperature Protection

•Positive Displacement Pump

•Fused Motor Protection

•Fused Heater Protection

•Grounded Control Circuit

•Low Watt Density Heater Element

•Fused Transformer Protection on both Primary &

Secondary Sides

•Solid-State Heater Control Relays

•NEMA 1 Electrical Specifications & Wiring in

Conformance with NEC

•Bypass Valve to Insure Proper System Flow and

Velocity

•Delivery Pressure Gauge

•Pilot Lights to indicate Separate Functions of Use

SHIPPING INFORMATION

RECEIVING AND INSPECTION

Every Delta T Systems Oil Temperature Control Unit is shipped in a custom-made wood crate to ensure the integrity

of the unit when it is received at your facility.

If the crate seems to show signs of damage, thoroughly inspect the equipment for any signs of damage that may have

occurred in transit. If components are broken or damaged, refer to www.deltatparts.com or contact Delta T Systems for

potential return to the factory for recertification and repair.

UNCRATING YOUR UNIT

CAUTION: Steel banding may spring back and cause injury!

The crate and unit are heavy and should not be moved without the aid of a hand truck/fork lift.

First, remove sides and top from the base, but leave the unit banded to the base.

Then, cut steel banding to release the unit from the base.

Document #: EM-S00002 Revision: B

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INSTALLATION

WORK RULES

The installation, operation, and maintenance of this equipment must be conducted in accordance with all applicable

work and safety codes for the installation location. This may include, but is not limited to OSHA, NEC, CSA, and any

other local, national, and international regulations.

•Read and follow these instructions when installing, operating, and maintaining this equipment. If the instructions

become damaged or unreadable, obtain additional copies from Delta T Systems.

•Only qualified personnel familiar with this equipment should work on or with this Oil Temperature Control Unit.

•Work with approved tools and devices.

•Disconnect the electricity before maintenance or service.

UNIT LOCATION

The unit is designed for indoor installation where the temperature of the room is between 40°F and 120°F. The

equipment must be installed on a rigid surface suitable to support the full operating weight of the unit. Level all

equipment to ensure proper operation.

The unit must bein an accessiblearea. To allow forproper maintenance and servicing of the unit, consider accessibility

to all components when locating the unit. In general, whenever possible allow a minimum of 36 inches of clearance

around all sides and above the unit for maximum ease of service and maintenance. Avoid locating piping or conduit

over the unit. This ensures easy access with an overhead crane or lift to lift out heavier components when they are

replaced or serviced.

When locating the unit, it is important to consider a proper ventilation, especially in high ambient temperature conditions.

For proper ventilation and heat dissipation, allow an adequate room on both sides of the unit. Failure to do so may lead

to overheating of the motor windings and other components which can cause premature component failure.

RIGGING

The unit has a structural steel base with casters to facilitate easy movement and positioning. Follow proper rigging

methods to prevent damage to components. Avoid impact loading caused by sudden jerking when lifting or lowering

the unit. Use pads where abrasive surface contact may occur. Use the frame supporting the unit for positioning it with

a crane or forklift.

ELECTRICAL CONNECTIONS

WARNING: Electrical shock hazard

Check identification plate to make certain your electrical service conforms to unit specifications and amperage draw.

Have a qualified electrician bring properly sized power leads and ground from a fused disconnect to the unit. Make

certain the disconnect switch is sized according to the National Electrical Code recommendations.

•Electrical connections must comply with all applicable electrical codes.

•The temperature control unit must be grounded in accordance with NEC Article 250.

Before applying power: Tighten all electrical terminations or connections and inspect for damage to wires and

components, electrical connections can become loose during shipping.

Document #: EM-S00002 Revision: B

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PIPING CONNECTIONS

Piping Considerations

When installing the unit, all connection piping and hoses should follow these considerations:

•All external hose, valves, fittings, and piping should be rated for a minimum of 150 psi and 550°F

•All external hose, valves, fittings, and piping should be the same size or larger that the size of the connection. This

will help reduce flow restriction.

•If quick disconnects are used, be careful to minimize pressure drop. Do not use quick disconnects with check

valves unless absolutely necessary.

Process Connections

Every Delta T Systems Oil Temperature Control Unit connection is clearly labeled on the back of the unit. Make sure

you carefully select components with the minimum rating recommended in this manual.

DELIVERY –Connect this port to the Oil In port on your process

RETURN –Connect this port to the Oil Out port on your process

Connection port sizes will depend on the unit. To ensure maximum efficiency, the process oil piping circuit should be

designed to avoid excessive use of elbows and or lengths of pipe or hose. If hose is used, avoid tight bends, twists,

and curls.

Valves, filters, and strainers may be installed in the process piping circuit to aid in maintenance, provided that such

devices maintain full inside diameter of the process connection. If installed, conduct regular maintenance to guarantee

the devices are clean and not restricting flow to the process.

Cooling Water Supply Connection (Cooling Option)

Some Delta T Systems Oil Temperature Control Units come with a cooling option. The cooling option will utilize a shell

and tube heat exchanger with water or a water glycol mix as the cooling fluid. The cooling systems in Delta T Systems

Oil Temperature Control Units are designed to run with only water or a water glycol mix. The use of any other fluids is

prohibited. The connection portsize of the cooling water supply and drain will depend on the size of the heat exchanger.

WATER SUPPLY –Connect this port to your plant’s city water, well water, tower water, or chilled water supply.

WARNING: Use proper temperature and pressure rated piping and hose for external connections to

the unit.

WARNING: Using small diameter lines restricts flow and heat transfer.

Your Delta T Systems Oil Temperature Control Unit is designed to operate using most water sources available,

however, service life is greatly diminished by hard or corrosive water. These water sources cause control problems that

eventually damage your equipment.

It requires a water inlet and drain connection. The drain outlet should be unrestricted without back pressure and

should be directed away from all personnel.

It is highly recommended that you have a treated water source available for this equipment.

Document #: EM-S00002 Revision: B

Document P/N: 900-00001-00 9of 19 | P a g e

Filling the Tank with Oil

CAUTION: Because of the expansion of the oil during the process, be sure to not overfill the tank.

CAUTION: Do not replace the breather plug on the inside of the unit or the breather on the fill pipe

on the outside of the unit with a plug or a cap. Never create conditions which would allow the reservoir

tank to be pressurized.

The expansion tank, the internal piping, and the heater tank require an amount of oil depending on the model. Additional

oil should be added to fill the connecting lines plus the channels in the process. As the unit is operating in the heating

cycle, the oil expands.

Delta T Systems recommends Paratherm NF Heat Transfer Fluid for operating temperature from 100°F to 600°F.

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