Seifert SlimLine Pro KG 8503 Instruction Manual
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Seifert SlimLine Pro KG 8503 Instruction Manual

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Table of Content 850300S62
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Tahir
June 14, 2025

What's the meaning of setting parameters, HA, LA, pass, CT_5, OUTP, IP, STAT, HT_5,

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Summary of Contents for Seifert SlimLine Pro KG 8503

  • Page 1: Table Of Contents

    Table of Content 850300S62 1. User manual ..........................2. Legal regulations ......................... 3. Safety instructions ........................4. Settings ............................5. Functional principle ........................6. Technical data ..........................7. Mounting ............................. 8. Mounting Principle ........................9. Electrical connection ......................... 10. Wiring diagram .........................

  • 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: Settings

    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.
  • Page 5 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 heating set point, St2 (only for units supplied with internal heater): 1.
  • Page 6 Test function Different test functions can be used depending on the combination of keys pressed. Such tests run for the duration of 4 minutes. “SET+▲” tests Compressor and Ambient Blower relays. “SET+▼” tests Alarms and Heater relays Alarm Relay Operation Both normally closed (NC) and normally open (NO) alarm contacts are provided.
  • Page 7 Failure table: The display shows either ‘’OFF’’ or “EXX” with an icon flashing (triangle), alternating with the standard display. If more than one error occurs, these are shown in sequence on the display. Failure Description Solution Code Close the enclosure door and check the door contact switch. If no Door open door contact switch is used and c68=0, bridge terminals on power connector.

  • Page 8: Functional Principle

    5. Functional principle The cooling unit for enclosures works on the basis of a refrigeration circuit consisting of four main components: compressor, evaporator, condenser and expansion device. 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).

  • Page 9: Technical Data

    6. Technical data Order Number 850300S62 Cooling capacity 95F/95F 1200 BTU Cooling capacity 95F/122F 790 BTU Compressor Rotary piston Refrigerant / GWP R134a / 1430 Refrigerant charge 100 g / 3.53 oz. 25 / 6 bar High / low pressure 363 / 87 psi Operating temperature range 50°F - 140°F...

  • Page 10: Mounting

    7. 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.
  • Page 11 Cold air outlet duct: When using a cold air outlet duct please follow the steps below. Filter installation: If you install / replace a filter please follow the steps below. Version Nr. 1-7 - 24.12.2020 Doc. Nr. 99850300S62 11 / 20...
  • Page 12 Condensate management: High humidity and low temperatures inside the enclosure can lead to condensation on the evaporator. Condensate that flows back into the enclosure can damage sensitive control electronics. The integrated condensate evaporation of the cooling unit releases the condensate to the environment. If condensate formation is too great, additional condensate can drip into an overflow trough, which then drains off...

  • Page 13: Mounting Principle

    8. Mounting Principle Do not use within the first 15 minutes after installation! M6 screws M6 toothed washers M6 flat washers Enclosure Mounting gasket Lifting hook Cover M4 screws Fig. 1 Recessed Fig. 2 External Version Nr. 1-7 - 24.12.2020 Doc.

  • Page 14: Electrical Connection

    9. Electrical connection Caution, risk of death Unconnected and / or faulty protective conductor systems can lead to dangerous voltages and electric shocks which can cause serious accidents. Work on electrical connections may only be carried out by trained electrical engineers. Door Switch The unit can be switched ON and OFF via a door contact switch.

  • Page 15: Wiring Diagram

    10. Wiring diagram Power connector Signal connector Alarm (NC) Alarm (COM) Alarm (NO) Door contact Door contact Version Nr. 1-7 - 24.12.2020 Doc. Nr. 99850300S62 15 / 20...

  • Page 16: Taking Into Operation

    11. Taking into operation Attention! The unit can be damaged by lack of lubricant. To ensure that the compressor is adequately lubricated the oil, which has been displaced during transport, must be allowed to flow back into it. The unit must therefore be allowed to stand for at least 30 min.

  • Page 17: Trouble Shooting

    12. Trouble shooting Failure Condition Cause Solution Internal fan does not work Power not connected. Verify power supply Enclosure temperature is below Verify values of parameter setting temperature (St1) "St1" Internal fan works, external fan and compressor don't work Door switch contact is open Verify door switch Controller doesn't work Replace controller...

  • Page 18: Transport & Storage

    14. Transport & Storage Malfunction due to transport damage On delivery the carton box containing the unit must be examined for signs of transport damage. Any transport damage to the carton box could indicate that the unit itself has been damaged in transit which in the worst case could mean that the unit will not function.

  • Page 19: Parts Supplied / Spare Parts / Accessories

    15. Parts supplied / Spare parts / Accessories Parts supplied: Version Nr. 1-7 - 24.12.2020 Doc. Nr. 99850300S62 19 / 20...
  • Page 20 AC-8503/05/06-CS-1 Door switch contact 3100001 Seifert Systems GmbH Seifert Systems Ltd. Seifert Systems AG Seifert Systems Inc. Seifert Systems Pty Ltd. Albert - Einstein Str. 3 HF09/10 Wilerstrasse 16 75 Circuit Drive 105 Lewis Road Hal-Far Industrial Estate North Kingstown...

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