Seifert KG 4308-120V Bedienungsanleitung

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Table of Content KG 4308-120V

1. User manual 2 ...................................................................................................................

2. Legal regulations 2 ...........................................................................................................

3. Safety instructions 3 ........................................................................................................

4. Technical information 4 ...................................................................................................

5. Functional principle 5 ......................................................................................................

6. Technical data 6 ................................................................................................................

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

9. Mounting Principle 8 ........................................................................................................

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

11. Electrical connection 10 .................................................................................................

12. Wiring diagram 10 ..........................................................................................................

13. Taking into operation 12 ...............................................................................................

14. Trouble shooting 12 ......................................................................................................

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

16. Transport & Storage 13 .................................................................................................

17. Parts supplied 13 ............................................................................................................

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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 therefore it can be safely taken

into operation. Only trained specialists are allowed to work on the unit. Unauthorised 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 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 fused 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. Technical information

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. Control cabinet 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.

Controller

The unit is equipped with a temperature controller which regulates the function of the air-conditioning

cycle. At normal working conditions the display shows the temperature inside the enclosure. The

cooling set point for the interior of the enclosure (parameter St / St1) is pre-set at 35°C and can be

adjusted between +20°C and +50°C.

To change the cooling set point St/St1:

1. Press ‘Set’ till St/St1 appears on the display.

2. Press the Up/Down buttons to adjust the temperature setting.

3. Press ‘Set’ to save the new setting.

To change the heating set point St2 (Units with internal heater only):

1. Press ‘Set’ till St1 appears on the display and release the button.

2. Press again ‘Set’ till St2 appears on the display.

3. Press the Up/Down buttons to adjust the temperature.

4. Press set to save the new setting.

Important Note: when changing settings ensure that: (St2 + 5K) < St1

The unit also has a potential free high temperature alarm relay (normally closed configuration) that is

pre-set to switch when the enclosure temperature exceeds 55°C. If necessary the alarm relay

configuration and the set point can be changed via the controller’s parameters. Kindly contact your

nearest service / sales partner for further details on how to change these parameters.

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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 Warning 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, and condensate evaporator has an approximate evaporation capacity of

250ml/hr. The recipient has an overflow socket at the bottom of the unit. A drain pipe is supplied to

connect to overflow socket.

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6. Technical data

Order Number 43081081

Cooling capacity L35L35 750 W @ 50 Hz

780 W @ 60 Hz

Cooling capacity L35L50 580 W @ 50 Hz

610 W @ 60 Hz

Compressor Reciprocating compressor

Refrigerant / GWP R134a / 1430

Refrigerant charge 205 g / 7.2 oz

High / low pressure 29.5 / 6 bar

425 / 88 psig

Temperature range +10°C - +55°C

Air volume flow Ambient air circuit: 435 m³/h

Cabinet air circuit: 200 m³/h

Mounting Recessed

Housing Material Mild steel, powder coated

Dimension HxWxD 715 x 372 x 260 mm

Weight 33.7 kg

Voltage / Frequency 120 V ~ 50/60 Hz

Current L35L35 5.8 A @ 50 Hz

5.8 A @ 60 Hz

Starting current 33 A

Max. current 6.0 A

Nominal power L35L35 470 W @ 50 Hz

470 W @ 60 Hz

Max. power 595 W

Fuse 12 A (T)

Connection Connection terminal block

IP class EN 60529 External circuit: IP 24

Internal circuit: IP 54

Approvals CE, cURus, RoHS

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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. Air inlets and outlets must be completely free from obstruction.

Ensure that flows of air leaving and entering the cooling unit, internal and external, are not obstructed.

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

1 M8 Lifting hook

2 PVC washer

3 Enclosure

4 Cooling unit

5 M6 flat washer

6 M6 Toothed washer

7 M6 Bolt

8 Sealing tape

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10. Dimensions (H x W x D)

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11. Electrical connection

Door Switch

The unit can be switched on and of via a door contact switch. When delivered the door contact

terminals are bridged on the female connector. To connect the door contact switch remove the bridge

and connect door contact switch. The contact must be closed when the cabinet door is closed.

12. Wiring diagram

#1 Not present on KG4304 unit

#2 Models with condensate evaporator

C Controller

EB External Blower

IB Internal Blowers

PC 9 Pole connector

CC 7 core cable

Mc Motor compressor

AT Auotransformer

1 120V L1

2 /

3 N / L2

4 Earth

5 /

6 Alarm P1

7 Alarm P2

8 Door T1

9 Door T2

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