SCE ENVIRO-THERM SCE-TE170B24VSS Bedienungsanleitung
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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-TE170B24VSS
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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 specic
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-specied spare parts and accessories
• Unauthorized modications 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.
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SAGINAW CONTROL & ENGINEERING • A/C USER MANUAL
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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.
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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
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6. Technical Data
Part Number SCE-TE170B24VSS
Cooling Capacity @ 95°F / 95°F 170 BTU (50 Watts)
Operating Temperature Range -4°F - 149°F
Air Volume Flow Ambient Air Circuit: 37 cfm
Cabinet Air Circuit: 13 cfm
Mounting Recessed
Housing Material Stainless Steel AISI 304
Dimensions (H x W x D) 8.1 x 6.1 x 5.3 inch
Cutout Dimensions 6.69 x 4.72 inch
Weight 7 lbs
Rated Operating Voltage 24V DC
Rated Current 2.4 A
Starting Current 3.7 A
Max Current 2.5 A
Nominal Power @ 95°F / 95°F 57.6 W
Max Power 60 W
Fuse Rating 4A (T) - Time Delayed [Slow Acting]
Circuit Breaker - MCB Type D or K Slow Acting 4A Slow Acting
Connection Connection Terminal Block
NEMA Protection Class NEMA 3, 3R, 4, 4X & 12
Approvals CE / cURus
Industry Standards IS20
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7. Performance Graph
Thermoelectric Cooler 170 BTU/HR (50 Watts)
Performance Curve
Ambient Temperature (°C)
Cooling Capacity
(BTU)
SCE-TE170B24VSS
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
1000
900
800
700
600
500
400
300
200
100
0
-20 -14 -9 -3 2 8 13 19 24 30 36 41 47 52 58 63
293
264
234
205
176
146
117
88
59
29
0
Thermoelectric Cooler 170 BTU/HR (50 Watts)
Heating - Performance Curve
SCE-TE170B24VSS
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
Enclosure Air Temp
293
264
234
205
176
146
117
88
59
29
0
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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.
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11. Electrical Connection
High electric voltage present.
Installation, maintenance, cleaning and any other work must be carried out by
qualied 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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