Seifert 43083001 User manual
Version No. 1-3 - 01.07.2022 Doc. No. 9943083001 1 / 18
Table of Content 43083001
1. User manual 2 ..................................................................................................................................
2. Legal regulations 3 .........................................................................................................................
3. Safety instructions 4 ......................................................................................................................
4. Settings 5 .........................................................................................................................................
5. Functional principle 6 .....................................................................................................................
6. Technical data 7 ..............................................................................................................................
7. Performance graph 8 ......................................................................................................................
8. Mounting 9 .......................................................................................................................................
9. Mounting Principle 10 .....................................................................................................................
10. Cut Out Dimension 11 ...................................................................................................................
11. Dimension (H x W x D) 12 ............................................................................................................
12. Electrical Connection 13 ...............................................................................................................
13. Controller 14 ..................................................................................................................................
14. Wiring Diagram 15 ........................................................................................................................
15. Taking into Operation 16 .............................................................................................................
16. Trouble Shooting 16 .....................................................................................................................
17. Maintenance & Cleaning 16 .........................................................................................................
18. Transport & Storage 17 ................................................................................................................
19. Parts supplied / Spare parts / Accessories 18 ..........................................................................
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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.
Intended use
The unit is to be used exclusively for the dissipation of heat from control cabinets and enclosures (stationary,
not moving) 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.
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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
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.
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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.
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. Settings
The cooling unit is intended to be used as a complementary accessory to larger industrial equipment. The unit
is used where heat needs to be dissipated from electrical control cabinets or similar enclosures in order to
protect heat sensitive components. It is not intended for household use.
The unit has two completely separate air circuits which ensure that the clean cabinet air does not come into
contact with the ambient air which may well be dirty or polluted.
Enclosure cooling units can dissipate large quantities of heat from sealed enclosures such as electrical
enclosures into the ambient air and at the same time reduce the cabinet internal temperature to below that of
the ambient air. The unit can function without problems in extreme ambient conditions (e.g. dusty and oily air)
with a standard operating temperature ranging between 10°C and 55°C. Units can be ordered with an
additional electrical cabinet heater. For the cooling capacities and evironmental ratings please refer to the type
plate data.
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5. Functional principle
The cooling unit for enclosures works on the basis of a refrigeration circuit consisting of four main
components: compressor (1), evaporator (2), condenser (3) and expansion device (4).
The circuit is hermetically sealed and R134a refrigerant circulates inside it (R134a is chlorine free and has an
Ozone Destruction Potential [ODP] of 0 and a Global Warming Potential [GWP] of 1430). The compressor
compresses the refrigerant (thus taking it to high pressure and high temperature), and pushes it through the
condenser, where it is cooled by ambient air thus passing from the gas to the liquid state. At the liquid state it
then passes through the capillary pipe being a much lower pressure the refrigerant arrived to the evaporator
where it absorbs the necessary heat to change from liquid to gas state. The gas is then drawn back into the
compressor completing the cycle.
Condensation management
In environments with humidity and low internal enclosure temperatures, condensation may form on the
evaporator coil. Standard cooling units 43XXX0XXX have a drain socket towards the bottom of the unit for
connection of the drain pipe.
Cooling units 43XXX1XX include an internal condensate evaporator based on self-regulating PTC cartridges.
Condensate is drained to an internal recipient where it evaporates when in contact with the cartridge surface.
Resulting steam is directed towards the condenser. The PTC heater cartridge is permanently connected. The
recipient has an overflow socket at the bottom of the unit, for which a drain pipe is supplied.
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6. Technical data
Order Number 43083001
Cooling capacity L35L35 750 W @ 50 Hz
780 W @ 60 Hz
Cooling capacity L35L50 580 W @ 50 Hz
610 W @ 60 Hz
Compressor type Reciprocating compressor
Refrigerant / GWP R134a / 1430
Operating Temperature Range 10°C - 55°C
Air flow volume (system / unimpeded) Ambient air circuit: 435 / 550 m³/h
Cabinet air circuit: 200 / 250 m³/h
Mounting External
Housing Material Mild steel, powder coated
Dimensions A x B x C (D+E) 651.4 x 315 x 260 mm
Weight 33.7 kg
Cut out dimensions 635 x 275 mm
Voltage / Frequency 120/400/460 V ~ 50/60 Hz 2~
Current L35L35 5.8 A / 1.6 A / 1.6 A
Starting current 33 A / 10 A / 10 A
Max. current 6 A / 1.6 A / 1.6 A
Nominal power L35L35 470 W
Max. power 595 W
Fuse 12 / 2 x 3.6 A (T)
Short-circuit current rating 5 kA
Connection Connection terminal block
Ingress Protection IP 54 / TYPE 12
Approvals CE / cURus
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7. Performance graph
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8. Mounting
The power supply rating on unit rating plate must comply with mains rating.
Always disconnect the power supply before opening the unit.
The heat load to be dissipated from enclosure should not exceed specific cooling output of the unit at any
condition. At cooling unit selection always cater for a safety margin of at least 15% extra cooling output in the
worst conditions.
Ensure that flows of air leaving and entering the cooling unit, internal and external, are not obstructed. It must
also be ensured in accordance with UL, that the air outlet is not blowing air directly at an equipment
operator. Should this be the case a barrier or duct shall be provided to redirect the airflow.
Cooling unit enclosure air suction hole must be installed in the highest possible point. When installing the unit
on a door ensure it can take the weight.
Before drilling the enclosure ensure the fixing elements and couplings will not interfere with the equipment
inside the enclosure itself. Disconnect power before starting any work inside the enclosure. Following this 1:1
Scale Drilling Template drill the holes and make the required cuts on the enclosure. This template may have
been affected by storage conditions, please check this template by verifying values of the largest dimensions
before drilling. Fit the sealing strip on the cooling unit on the side connected to the enclosure and follow the
installation diagram.
Note: In case of 19" rack mounted units please ignore the above mounting instructions.
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9. Mounting Principle
Do not use within the first 15 minutes after installation!
1 M6 screws
2 M6 flat washers
3 M6 toothed washers
4 Cabinet
5 Sealing tape
6 Cooling unit
7 Lifting hook
Fig. 1 Recessed
Fig. 2 External
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