SCE SCE-TE340B24VSS User manual

SAGINAW CONTROL & ENGINEERING • A/C USER MANUAL

1. User Manual ............................................................................................ p. 2

2. Legal Regulations................................................................................... p. 2

3. Safety Instructions ................................................................................. p. 3

4. Technical Information............................................................................. p. 4

5. Functional Principle ............................................................................... p. 4

6. Technical Data......................................................................................... p. 5

7. Performance Graph ................................................................................ p. 6

8. Mounting.................................................................................................. p. 7

9. Cutout Dimensions................................................................................. p. 8

10. Dimensions (H x W x D) ......................................................................... p. 9

11. Electrical Connection ............................................................................. p. 10

12. Wiring Diagram ....................................................................................... p. 11

13. Taking Into Operation............................................................................. p. 12

14. Repair....................................................................................................... p. 12

15. Maintenance & Cleaning ........................................................................ p. 12

16. Maintenance ............................................................................................ p. 13

17. Transportation & Storage....................................................................... p. 14

18. Parts Supplied......................................................................................... p. 14

19. Warranty / Limits of Liability ................................................................. p. 15

User Manual SCE-TE340B24VSS

SAGINAW CONTROL & ENGINEERING • A/C USER MANUAL

1. User Manual

This instruction manual contains information and instructions to enable the user to work safely, correctly and economically

on the unit. Understanding and adhering to the manual can help one:

• Avoid any dangers

• Reduce repair costs and stoppages

• Extend and improve the reliability and working life of the unit

PLEASE ENSURE TO USE THE RIGHT VERSION OF THE INSTRUCTION MANUAL SUITABLE FOR YOUR UNIT

Conditions of Use

The unit is to be used exclusively for the dissipation of heat from control cabinets and enclosures in order to protect

temperature sensitive components in an industrial environment. To meet the conditions of use, all the information and

instructions in the instruction manual must be adhered to.

General Danger

Indicates compulsory safety regulations which are not covered by a specic

pictogram such as one of the following.

High Electric Voltage

Indicates electric shock danger.

Important Safety Instruction

Indicates instructions for safe maintenance and operation of the unit.

Attention

Indicates possible burns from hot components.

Attention

Indicates possible damage to the unit.

Instruction

Indicates possible danger to the environment.

2. Legal Regulations

Liability

The information, data and instructions contained in this instruction manual are current at the time of going to press. We

reserve the right to make technical changes to the unit in the course of its development. Therefore, no claims can be

accepted for previously delivered units based on the information, diagrams or descriptions contained in this manual. No

liability can be accepted for damage and production caused by:

• Disregarding the instruction manual

• Operation error

• Inappropriate work on or with the unit

• The use of non-specied spare parts and accessories

• Unauthorized modications or changes to the unit by the user or his personnel

Saginaw Control & Engineering is only liable for errors and omissions as outlined in the guarantee conditions contained in

the main contractual agreement. Claims for damages on any grounds are excluded.

SAGINAW CONTROL & ENGINEERING • A/C USER MANUAL

3. Safety Instructions

Upon delivery the unit is already meeting current technical standards, therefore it can be safely taken into operation. Only

trained specialists are allowed to work on the unit. Unauthorized personnel must be prohibited from working on the unit.

Operating personnel must inform their superiors immediately if any malfunction of the unit becomes apparent.

Please note that before starting to work on or with the unit, a procedure must be carried out inside the cabinet on which the

unit is to be mounted.

Before commencing work inside the cabinet, the control cabinet manufacturer’s instruction must be read with regards to:

• Safety instructions

• Instructions on taking the cabinet out of operation

• Instructions on the prevention of unauthorized cabinet reconnection

The electric equipment meets the valid safety regulations. One can nd dangerous voltage (above 50V AC or above 100V

DC):

• Behind the control cabinet doors

• On the power supply in the unit housing

The units have to be fused according to the type plate and the wiring diagram. Switch the unit o immediately if the electric

power supply is interrupted.

Danger Through Incorrect Work on the Unit

Only specialized personnel are allowed to maintain and clean the unit. Regular maintenance

and cleaning must be kept in order to ensure that the unit remains in perfect working condition

and has a long working life.

Danger from Electric Voltage

Only specialized personnel are allowed to maintain and clean the unit. The personnel must

ensure that for the duration of the maintenance and cleaning, the unit is disconnected from

the electrical supply.

Attention

Damage to the unit through the use of inappropriate cleaning materials. Please do not use

aggressive cleaning material.

Instruction

Damage to the environment through unauthorized disposal. All spare parts and associated

material must be disposed of according to the environmental laws.

SAGINAW CONTROL & ENGINEERING • A/C USER MANUAL

4. Technical Information

Peltier cooling units are intended to be used as a complementary accessory to larger industrial equipment. They are used

where heat needs to be dissipated from electrical control cabinets or similar enclosures in order to protect heat sensitive

components.

Peltier cooling units can dissipate heat from sealed enclosures such as control cabinets. At the same time they can reduce

the cabinet internal temperature to below the ambient air temperature. They are available in powder-coated sheet steel or

stainless steel housings. Peltier units have additional heating function by changing the supply polarity of the thermoelectric

elements. This is possible by using a combination of thermostats or having a specific polarity controller.

Peltier cooling units are resistant to extreme ambient conditions and can operate effectively even in environments which are

dusty and oily and where temperatures may vary from -4°F to 149°F. For the cooling capacities and environmental ratings

please refer to the type plate data.

5. Functional Principle

Functional Principle

The thermoelectric elements create a temperature difference between the internal and ambient heat sinks, making internal

air cooler while dissipating heat into the external environment. Fans help the transfer of convective heat from the heat

sinks, which are optimized for maximum flow. Peltier units can be mounted in any position because these units don’t have

a compressor or any moving parts. Depending on the mounting situation, the condensation management may need to be

considered and possibly adjusted.

1. Ambient Fans

2. Ambient Heat Sinks

3. Thermoelectric Elements

4. Insulation

5. Internal Heat Sink

6. Internal Fan

SAGINAW CONTROL & ENGINEERING • A/C USER MANUAL

6. Technical Data

Part Number SCE-TE340B24VSS

Cooling Capacity @ 95°F / 95°F 340 BTU (100 Watts)

Operating Temperature Range -4°F - 149°F

Air Volume Flow Ambient Air Circuit: 75 cfm

Cabinet Air Circuit: 27 cfm

Mounting Recessed

Housing Material Stainless Steel AISI 304

Dimensions (H x W x D) 7.9 x 12.0 x 5.4 inch

Cutout Dimensions 10.24 x 6.30 inch

Weight 13 lbs

Rated Operating Voltage 24V DC

Rated Current 4.8 A

Starting Current 7.4 A

Max Current 5.6 A

Nominal Power @ 95°F / 95°F 115 W

Max Power 132 W

Fuse Rating 8A (T) - Time Delayed [Slow Acting]

Circuit Breaker - MCB Type D or K Slow Acting 8A Slow Acting

Connection Connection Terminal Block

NEMA Protection Class NEMA 3, 3R, 4, 4X & 12

Approvals CE / cURus

Industry Standards IS20

SAGINAW CONTROL & ENGINEERING • A/C USER MANUAL

7. Performance Graph

Thermoelectric Cooler 340 BTU/HR (100 Watts)

Performance Curve

Ambient Temperature (°C)

Cooling Capacity

(BTU)

SCE-TE340B24VSS

Enclosure Air Temp

149°F/65°C 122°F/50°C 95°F/35°C 68°F/20°C

Cooling Capacity

(Watt)

Ambient Temperature (°F)

-4 6 16 26 36 46 56 66 76 86 96 106 116 126 136 146

1300

1200

1100

1000

900

800

700

600

500

400

300

200

100

-20 -14 -9 -3 2 8 13 19 24 30 36 41 47 52 58 63

381

352

322

293

264

234

205

176

146

117

Thermoelectric Cooler 340 BTU/HR (100 Watts)

Heating - Performance Curve

SCE-TE340B24VSS

Enclosure Air Temp

Ambient Temperature (°C)

Watt

Ambient Temperature (°F)

0 10 20 30 40 50 60 70 80 90 100 110

-18 -12 -7 -1 4 10 16 21 27 32 38 43

381

352

322

293

264

234

205

176

146

117

SAGINAW CONTROL & ENGINEERING • A/C USER MANUAL

8. Mounting

Always switch o power supply before starting any work on the unit.

Installation

Ensure that ows of air leaving and entering the cooling unit, internal and external, are not obstructed. Before drilling the

enclosure, ensure the xing elements and couplings will not interfere with the equipment inside the enclosure itself. When

all mounting preparations are complete, the actual mounting operation can commence. Only use the enclosed material to

mount the unit on the cabinet.

Proceed as follows to mount the unit on the enclosure:

• Set the unit up on the enclosure.

• Ensure that the electrical connection is above the internal fan.

• Unit without duct: screw the M6 locknuts & washers into the M6 set screws in the unit.

• Unit with duct: screw the M6 screws & washers into the M6 threaded rivets in the unit.

The resistance of the earth connection between cabinet and cooling unit must be <0.1 Ω.

SAGINAW CONTROL & ENGINEERING • A/C USER MANUAL

9. Cutout Dimensions

Note:

Primary dimensions in millimeters.

Secondary dimensions in inches.

160 [6.30]

260 [10.24]

304 [11.97]

200 [7.87]

Ø8 [Ø0.31]

185 [7.28]

285 [11.22]

160 [6.30]

TOP

SAGINAW CONTROL & ENGINEERING • A/C USER MANUAL

10. Dimensions (H x W x D)

SAGINAW CONTROL & ENGINEERING • A/C USER MANUAL

11. Electrical Connection

High electric voltage present.

Installation, maintenance, cleaning and any other work must be carried out by

qualied personnel only. The personnel must ensure that for the duration of this work

the unit and the cabinet are disconnected from the electrical supply and protected

against unauthorized/accidental reconnection.

Instruction

Check that the available voltage, frequency and fuse rating are the same as those stated on the data label.

Connection to the main electricity supply

The mains connection is made via a cable. To connect the unit to the mains supply proceed as follows:

• Disconnect the control cabinet from the mains.

• See the connection details on the circuit diagram.

• Note the connections on the four pole terminal block from the following table:

Terminal 24 V DC

1Ambient Fan +

2 Ambient Fan –

3 Internal Fan +

4 Internal Fan –

5 Thermoelectric Elements +

6 Thermoelectric Elements –

Ensure that the correct polarity is maintained. The fans should have a clockwise

rotation.

• Connect the unit to the mains.

• Take the control cabinet back into operation in the prescribed manner.

Power consumption and start-up current are stated on the data label and under technical data.

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