Table of Content 6105303
1. User manual 2 ..................................................................................................................................
2. Legal regulations 2 .........................................................................................................................
3. Safety instructions 3 ......................................................................................................................
4. Controller functions 4 .....................................................................................................................
5. Functional principle 7 .....................................................................................................................
6. Technical data 8 ..............................................................................................................................
7. Mounting 9 .......................................................................................................................................
8. Mounting Principle 10 .....................................................................................................................
9. Dimensions (H x W x D) 11 .............................................................................................................
10. Electrical connection 12 ...............................................................................................................
11. Wiring diagram 12 .........................................................................................................................
12. Taking into operation 14 ..............................................................................................................
13. Trouble shooting 14 ......................................................................................................................
14. Maintenance & Cleaning 14 .........................................................................................................
15. Maintenance 15 .............................................................................................................................
16. Transport & Storage 15 ................................................................................................................
17. Parts supplied 15 ..........................................................................................................................
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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 specific 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:
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Disregarding the instruction manual
Operating error
Inappropriate work on or with the unit
The use of non-specified spare parts and accessories
Unauthorised modifications or changes to the unit by the user or his personnel
The supplier 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.
3. Safety instructions
Upon delivery the unit is already meeting current technical standards and can therefore be safely taken into
operation. Only authorised personnel is allowed to work on the unit. Unauthorised personnel must be prohibited
from working on the unit. Operating personnel must inform their superiors immediately of any malfunction of
the unit.
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 unauthorised cabinet reconnection.
The electric equipment meets the valid safety regulations. One can find dangerous voltages (above 50 V AC or
above 100 V DC)
Behind the control cabinet doors.
On the power supply in the unit housing.
The unit has to be operated according to the type plate and the wiring diagram, and must be protected
externally from overloading and electrical faults via suitable protective devices such as ground fault protection
breakers.
Danger through incorrect work on the unit
The unit can only be installed and maintained by technical competent and qualified
personnel, using only supplied material according to the supplied instructions.
Danger from electrical voltage
Only specialised 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 unauthorised disposal. All spare parts and associated
material must be disposed according to the environmental laws.
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4. Controller functions
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 air conditioners are resistant to extreme ambient conditions and can operate effectively even in
environments which are dusty and oily and where temperatures may vary from -20°C to +65°C. For the cooling
capacities and evironmental ratings please refer to the type plate data.
Controller
The display shows the temperature in the range of -50°C to +150°C (-58°F to +302°F). The temperature is
displayed with resolution of tenths between -19.9°C and +99.9°C (-3.8°F to +211.8°F). During programming, it
shows the codes and values of the parameters. The display also shows icons according to occurring events.
Display icons
Icon Function Description
1 Cooling relay active
2 Alarms relay active
3 Heating relay active
4 Ambient blower relay active
Alarm Flashes when alarms are active
Cooling mode Signals operation of unit in cooling mode
TEST Test mode in progress Activated only by manual procedure
Programming
The operating parameters can be modified using the front keypad. Access differs depending on the type of
parameter. Access to configuration parameters is protected by a password that prevents unwanted
modifications or access by unauthorised persons.
Flashes when activation
is delayed or inhibited by
protection times, external
disabling or other procedures
in progress
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Setting cooling set point, St1:
1. Press “SET” and display should show St1 and then the pre-set value of St1. (default: +35°C / +95°F)
2. Reach the desired value by using ▲ or ▼.
3. Press “SET” again to save the new value of St1.
Setting temperature units (°C / °F), low temperature alarm and high temperature alarm:
1. Press “PRG” button for 5 seconds to reach the modifiable parameter list.
2. Use ▲ or ▼ to reach the desired parameter:
C18 for temperature unit of measure
°C = 0
°F = 1
P25 for low temperature alarm threshold (default -10°C / +14°F)
P26 for high temperature alarm threshold (default +55°C / +131°F)
3. Press “SET” on the desired parameter to display the current value.
4. Use ▲ or ▼ to reach the desired value.
5. Pressing “SET” temporarily saves the new value and returns to the parameters list.
6. Repeat steps 2-5 to set other parameters.
7. Press “PRG” for 5 seconds to permanently save the new values.
Set Point Parameter Default Range
Cooling St1 35°C / 95°F 20°C - 50°C / 68°F -122°F
Low Temperature Alarm P25 -10°C / 14°F -50°C - P26 / -58°F - P26
High Temperature Alarm P26 55°C / 131°F P25 - 150°C / P25 - 302°F
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