Seifert 752521B001 User Manual
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Seifert 752521B001 User Manual

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Table of Content 752521B001
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  • Page 1: Table Of Contents

    Table of Content 752521B001 1. User manual ..........................2. Legal regulations ......................... 3. Safety instructions ........................4. Settings ............................5. Functional principle ........................6. Technical data ..........................7. Performance graph ........................8. Mounting ............................9. Condensate management ......................10. Mounting Principle ........................

  • 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: Legal Regulations

    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.

  • Page 4: Safety Instructions

    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.

  • Page 5: Settings

    4. Settings Air - water heat exchangers are intended as complementary accessories to large industrial equipment which include a motor-operated fan or blower together with a cooling heat exchanger. These may also include an electric heater. The fan or blower is intended to recirculate air and allow heat exchange. The heat exchanger is designed for chilled water or anti-freeze/corrosion inhibitor mixed water from a separate source.

  • Page 6: Functional Principle

    5. Functional principle The air inside the control cabinet is moved over a laminar heat exchanger through which a coolant medium runs, making use of the counter-flow principle. The fan blows the warm air along the aluminium fins of the heat exchanger;...

  • Page 7: Technical Data

    6. Technical data Order Number 752521B001 Cooling capacity L35W10 (500 l/h) 2.8 kW Coolant Water, light oils or similar Operating Temperature Range 1˚C - 60˚C Air flow volume (system / unimpeded) 560 / 800 m³/h Mounting Wall mounted / recessed...

  • Page 8: Performance Graph

    7. Performance graph Version No. 1-3 - 09.11.2022 Doc. No. 99752521B001 8 / 28...

  • Page 9: Mounting

    8. Mounting The power supply rating on unit rating plate must comply with mains rating. Always disconnect the power supply before opening the unit. SLIMLINE HEX air/ water heat exchangers have an extremely compact design and construction, giving them the advantage of occupying very little space.

  • Page 10: Condensate Management

    9. 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. If too much condensation forms, the condensation is drained out of the cooling unit from outlets in the front bottom cover (Position 1, 3 and 4) or directly through the bottom of the unit (Position 2).
  • Page 11 Remove the sealing panel. Remove only the lower sealing panel on the RK-7525 and RK-7555. Take the grommet supplied in the packing bag and insert in the bottom panel. Insert the drain hose from the bottom of the unit and keep pushing until it is fully inserted in the drain fitting.

  • Page 12: Mounting Principle

    10. Mounting Principle Unpacking unit: Please follow the below steps to unpack the unit. STEP 1: Stand the cooling unit upright with the pre-cut packaging opening facing up. STEP 2: Pull off the packaging opening. STEP 3: Hang the transport loop of the unit in the transport hook and lift it slightly. STEP 4: Pull off...
  • Page 13 The cooling unit can now be attached to the enclosure. 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 14 Dual air outlet option: Some of the variants of the Slimline HEX units have the option to have the air outlet in two positions to cater for the enclosure on which the unit is installed. The factory setting is to use the upper air outlet. To change over to the lower air outlet the dual closing panel has to be unscrewed and re-installed at the upper position.
  • Page 15 Cold air outlet duct: When using a cold air outlet duct please follow the steps below. Version No. 1-3 - 09.11.2022 Doc. No. 99752521B001 15 / 28...
  • Page 16 Applying supplied mounting gasket or tight tape. For external mount units the mounting gasket is used. This consists of 4 pieces. Top section (1), sides (2), and bottom section (3). Attach the gasket to the unit making sure to align the holes in the gasket with the mounting popnuts.
  • Page 17 NOTES: • Use only the supplied mounting hardware. • Tighten Screws to 4.5 Nm. • Ensure the mounting surface does not warp after assembly and reinforce it if necessary. M6 screws M6 toothed washers M6 flat washers Enclosure Mounting gasket Lifting sling Cover M4 screws...

  • Page 18: Cut Out Dimension

    11. Cut Out Dimension Version No. 1-3 - 09.11.2022 Doc. No. 99752521B001 18 / 28...

  • Page 19: Dimension (H X W X D)

    12. Dimension (H x W x D) Version No. 1-3 - 09.11.2022 Doc. No. 99752521B001 19 / 28...

  • Page 20: Electrical Connection

    Fluorescent lamps with electronic controllers or without phase shifting capacitors can be used, depending on the operating limits specified for each type of relay. SCCR Refer to UL508A Supplement SB and Seifert Systems’ document Short Circuit Current Rating (SCCR) on methods how to modify the available short circuit current within a circuit in the panel.
  • Page 21 Connect unit: Connect the cooling device according to the instructions below. The cable cross-section must correspond to the required power for the current consumption, but max. 2.5 mm² / AWG 14. Version No. 1-3 - 09.11.2022 Doc. No. 99752521B001 21 / 28...

  • Page 22: Controller

    14. Controller Adjusting the control setpoint The cooling set point can be adjusted between 0°C and 60°C. The setpoint is controlled by parameter St. The default setting is 25°C. To change the control setpoint: Press the red Set button for 1 second until St appears on the display. Press the Up/Down buttons to reach the desired value.

  • Page 23: Wiring Diagram

    15. Wiring Diagram Power connector Signal connector Door contact T2 Door contact T1 Alarm contact P2 Alarm contact P1 TOP connector Version No. 1-3 - 09.11.2022 Doc. No. 99752521B001 23 / 28...

  • Page 24: Taking Into Operation

    16. Taking into Operation The cooling performance of the heat exchanger is dependent on the water flow rate available from the supply. The water flow is dependent on the water supply system to which the heat exchanger is connected and is affected by various factors, such as conduit pressure, conduit diameter, etc.

  • Page 25: Maintenance & Cleaning

    17. Maintenance & Cleaning The unit should have regular functional tests (approx. every 2,000 hours depending on the grade of ambient pollution). 18. Maintenance Every unit is given a performance test under load at the factory. The units are largely maintenance-free, however, the following points should be observed: 1.

  • Page 26: Transport & Storage

    19. Transport & Storage Malfunction due to transport damage. During transport and storage the heat exchanger must be kept in the position marked on the box and at a temperature between -40˚C and 70˚C and a relative humidity of max. 95% (at 25°C). Check the packaging has not been damaged during shipping.

  • Page 27: Parts Supplied / Spare Parts / Accessories

    M20 cable gland and lock nut M16 cable gland and lock nut M16 stopper and lock nut All spare parts are available through Seifert Systems. For further information or queries kindly contact Seifert Systems. Note: Only original spare parts should be used.
  • Page 28 Seifert Systems GmbH Seifert Systems Ltd. Seifert Systems AG Seifert Systems GmbH Seifert Systems Ltd. Seifert Systems Inc. Seifert Systems Pty Ltd. Albert-Einstein-Str. 3 HF09/10 Wilerstrasse 16 Bärnthal 1 Rep. Office 75 Circuit Drive 105 Lewis Road Hal-Far Industrial Estate...

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