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Table of Content KG 2025-24V
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Doc. Nr. 9920250241
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Summary of Contents for Seifert KG 2025-24V
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Page 1: Table Of Contents
Table of Content KG 2025-24V 1. User manual ........................2. Legal regulations ......................3. Safety instructions ......................4. Technical information ....................5. Functional principle ...................... 6. Technical data ........................ 8. Mounting ......................... 9. Electrical connection ..................... 10. Controller Layout Description ................. -
Page 2: 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. -
Page 3: Safety Instructions
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. -
Page 4: Technical Information
4. Technical information The cooling unit is intended to be used as a complementary accessory to larger industrial equipment, and 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. -
Page 5: Technical Data
6. Technical data Order Number 20250241 Cooling capacity L35L35 120 - 480 W Cooling capacity L35L50 max. 275 W Compressor Speed Control rotary compressor Refrigerant / GWP R134a / 1430 Refrigerant charge 82 g / 3 oz High / low pressure 30 / 6 bar 440 / 88 psig Temperature range... -
Page 6: Mounting
8. Mounting Mounting preparations Several points must be checked before the unit can be mounted. These checks must be made to ensure safety and the trouble-free operation of the unit. These checks must be carried out with absolute thoroughness to ensure that the unit works perfectly. Check unit for transport damages On delivery the carton box containing the unit must be examined for signs of transport damage. -
Page 7: Electrical Connection
Mounting the unit Only use the supplied material to mount the unit on the cabinet. Proceed as follows to secure the unit on the cabinet: Set the unit up on the cabinet Screw the M6 hex. head screws together with the washers and locking washers into the M6 threaded rivets in the unit. - Page 8 Attention Between contact T1 & T2 there is a 12V DC potential. These connections are to be connected to a door switch only! If no door switch is used, these contacts are to be bridged and protected from unauthorized and/or accidental external contact. Contacts P1, P2 & P3 are potential free and require an external power source if wired to operate external components (indicator lamps, switches...).
- Page 9 KEYPAD TB Testbutton DC LED Door Contact (ON when door closed) CF LED Controller Function (blinks when controller is running) Fault warning connection The fault warning is connected via terminals P1, P2 & P3 on the connection terminal block. The temp. adjustment range is between 25°C (left-hand stop) and 55°C (right-hand stop).
- Page 10 To change the alarm setting: Remove the outer cover. Remove the fixing screws from the PCB cover and the earth wire from inside it. Lift off the PCB cover Using a screwdriver turn the alarm temp. potentiometer on the PC-board slightly to the right (higher) or the left (lower) please note that the setting for the alarm signal must be at least 5°C higher than the setting for the cabinet's internal temperature...
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Page 11: Controller Layout Description
10. Controller Layout Description Optional sensor Optional powered sensor Simple display port Internal temperature sensor Alarm output UART UART RS485 RS485 Compressor data Door contact IFO1 Internal fan out 1 IFO2 Internal fan out 2 AFO1 Ambient fan out 1 AFO2 Ambient fan out 2 Fuse... -
Page 12: Wiring Diagram
11. Wiring diagram High Temperature TVR1 Ambient (optional) TVR2 Pressure pipe (optional) TVR3 Control temp (optional) Alarm output Compressor data Door switch Fuse 16 A(T) DC Power Internal fan Internal fan Ambient fan Ambient fan Compressor Compressor controller Comp. thermal switch (optional) WARNING: Unit is not protected against reversed polarity on DC source Wire Colour... - Page 13 Version Nr. 1-1 - 20.06.2017 Doc. Nr. 9920250241 13 / 16...
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Page 14: Taking Into Operation
12. Taking into operation The unit is controlled in relation to the cabinet internal temperature. A temperature sensor continuously measures the temperature of the air which is drawn into the unit from the cabinet. The required cabinet temperature for cooling operation can be set on the cabinet temperature software interface. -
Page 15: Trouble Shooting
13. Trouble shooting Failure Reason Troubleshooting No power supply Check the electrical connection Unit Wait until the set point is reached. The unit will then Cabinet temperature is lower doesn't start automatically. If the set point of the cabinet than set point start temperature is too high, reduce it accordingly. -
Page 16: Transport & Storage
Attention! Only use original replacement parts when repairing the unit. This ensures that the unit functions perfectly and remains safe. For further information and spare part ordering please contact us by email under service@seifertsystems.com Radial fan replacement: The normal working life of the fan is app. 40,000 working hours under normal conditions.
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