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Seifert 755501B001 User Manual Download Page 22

Version No. 1-2 - 09.11.2022

Doc. No. 99755501B001

22 / 28

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.
Press the Set button to save the new setting.

Adjusting the high and low temperature alarm setpoints
The high temperature alarm setpoint is controlled by parameter AH. The default setting is 55°C.
The low temperature alarm setpoint is controlled by parameter AL. The default setting is 0°C.

Adjusting parameters

Press and hold SET for 3-5 seconds until PS is displayed.
Release and press SET again briefly to display 0.
Press the UP arrow until you reach the value of 22. Then press SET. (This is the factory password to
access the protected parameters). Once the parameter list is accessed, PS is again displayed.
Press the UP or DOWN buttons to scroll through the various parameters.
Press SET to display the selected parameter’s stored value if needed.
Press UP/DOWN to change the parameter value if needed.
Press SET to save the current value displayed.
When ready from parameter adjustment, press and hold SET for 5 seconds to save any changes made.
The display will return to temperature reading. (This last step has to be performed correctly or all the
parameter changes are lost.)

Behaviour of digital input
The unit can be switched on and off via a door contact switch (optional). 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.

Attention
The unit can be damaged through incorrect adjustment. Do not modify any other values other than those
specified above. Adjusting other values may result in incorrect operation and damage to the unit.

Summary of Contents for 755501B001

Page 1: ...nciple 6 6 Technical data 7 7 Performance graph 8 8 Mounting 9 9 Condensate management 10 10 Mounting Principle 12 11 Cut Out Dimension 18 12 Dimension H x W x D 19 13 Electrical Connection 20 14 Controller 22 15 Wiring Diagram 23 16 Taking into Operation 24 17 Maintenance Cleaning 25 18 Maintenance 25 19 Transport Storage 26 20 Parts supplied Spare parts Accessories 27 ...

Page 2: ... 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 followi...

Page 3: ... 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 ...

Page 4: ...ty 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 ins...

Page 5: ... be soft enough to avoid scale deposits but should not be too soft as this would corrode the heat exchanger Where the cooling water is cooled for reuse part of the water has to be changed with fresh water to prevent the concentration of hardness and salt content which makes the water more corrosive The main impurities and possible methods of eliminating them are given in the table below Pollution ...

Page 6: ...ous circulation of the air in the cabinet This circulation prevents hot spots within the control cabinet During this process the coolant heats up and is returned to the coolant supply system at an increased temperature In order to save operating costs and in the interests of environmental protection the water temperature can be reduced by re cooling systems or cold water sets so that it can be reu...

Page 7: ...ial Mild steel powder coated Dimensions A x B x C D E 1 550 x 455 x 232 37 195 mm Weight 39 kg Voltage Frequency 230 V 50 60 Hz Starting current 1 4 1 5 A Max current 0 8 1 2 A Max power 175 240 W Pressure water circuit 10 bar Water connection Rp 1 2 inside thread with optional connectors for pipe internal diameter of 13 mm Noise level 5 5 kW L35W10 800l h Fuse 2 A T Connection 5 pole terminal for...

Page 8: ...Version No 1 2 09 11 2022 Doc No 99755501B001 8 28 7 Performance graph ...

Page 9: ...ectly sealed control cabinet will result in an increased level of condensation The control cabinet should have a minimum of IP54 protection in accordance with IEC 60 529 Cooling medium connection There are two pipe connection points in the bottom or in the top of the unit to connect the coolant supply The pipe connectors have a G3 8 or G1 2 female thread depending on version Before connecting the ...

Page 10: ...rectly through the bottom of the unit Position 2 The drain pipe must be connected wherever is most suitable for the customer application To install the drain pipe directly through the bottom of the unit Position 2 please follow below steps Remove the top cover middle cover and bottom cover The top cover does not need to be removed on 1 the RK 7525 and RK 7555 The louver blanks that are marked with...

Page 11: ...emove only the lower sealing panel on the RK 7525 and RK 7555 2 Install the M5 silicon washer and the condensate drain elbow fully into the drain fitting 3 Take a section of drain pipe supplied in the packing bag and insert over the condensate drain elbow 4 Insert the barbed POM elbow fully into the drain pipe 5 Insert the remaining drain pipe over the barbed POM elbow and route outside of the unit...

Page 12: ...ooling 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 the packaging and slide out the tray with installation material and the short version of the operating manual STEP 5 Pull off the remaining packaging STEP 6 ...

Page 13: ...tlets must be completely free from obstruction 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 ...

Page 14: ... 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 Figure 1 Upper air outlet Figure 2 Lower air outlet 1 Hot air in 2 Cool air out 3 Mounting bracket 4 Dual closing panel ...

Page 15: ...Version No 1 2 09 11 2022 Doc No 99755501B001 15 28 Cold air outlet duct When using a cold air outlet duct please follow the steps below ...

Page 16: ...f 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 Also make sure not to leave any gaps between the pieces of gasket For recess mount units apply the supplied foam tape as shown in the below image At the bottom overlap the tight tape to ensure there are no air leaks ...

Page 17: ...ied mounting hardware Tighten Screws to 4 5 Nm Ensure the mounting surface does not warp after assembly and reinforce it if necessary 1 M6 screws 2 M6 toothed washers 3 M6 flat washers 4 Enclosure 5 Mounting gasket 6 Lifting sling 7 Cover 8 M4 screws Fig 1Recessed Fig 2External ...

Page 18: ...Version No 1 2 09 11 2022 Doc No 99755501B001 18 28 11 Cut Out Dimension ...

Page 19: ...Version No 1 2 09 11 2022 Doc No 99755501B001 19 28 12 Dimension H x W x D ...

Page 20: ...bridge and connect door contact switch The contact must be closed when the cabinet door is closed Alarm Contacts Alarm contacts rated according to EN60730 1 8 4 A 10 10 A 250Vac 100000 cycles UL 873 8A 2FLA 12LRA 12A 12FLA 72LRA 250Vac 30000 cycles These contacts are not suitable for fluorescent loads neon lights etc that use starters ballasts with phase shifting capacitors Fluorescent lamps with e...

Page 21: ...1 2022 Doc No 99755501B001 21 28 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 mm AWG 14 ...

Page 22: ...ord to access the protected parameters Once the parameter list is accessed PS is again displayed Press the UP or DOWN buttons to scroll through the various parameters Press SET to display the selected parameter s stored value if needed Press UP DOWN to change the parameter value if needed Press SET to save the current value displayed When ready from parameter adjustment press and hold SET for 5 se...

Page 23: ...Version No 1 2 09 11 2022 Doc No 99755501B001 23 28 15 Wiring Diagram Power connector PE N L1 Signal connector Door contact T2 Door contact T1 Alarm contact P2 Alarm contact P1 ...

Page 24: ...ons to scroll the numbers until displaying 22 default password to access the parameters press the SET button to confirm the password 3 Use the UP and DOWN buttons to scroll the parameters The LED corresponding to the category of parameters will be on 4 Press SET to display the value associated with the parameter 5 Increase or decrease the value using the UP or DOWN button respectively 6 Press SET t...

Page 25: ... fan by loosening the 4 fastening screws To detach the fan from the fan support loosen a further 4 screws and the fan connecting cable When connecting the new fan take care that the correct polarity is maintained 2 Controller replacement Before replacing the controller isolate the equipment from the power supply pull out mains plug or connecting cable Detach the controller from its support by uncl...

Page 26: ...ge to the unit through incorrect transport Please ensure that all liquid has been removed prior any transport To avoid transport damage the unit should be returned in the original packing or in a packing case and must be strapped to a pallet If the unit cannot be returned in the original packing please ensure that A space of at least 30 mm must be maintained at all points between the unit and the ...

Page 27: ...rews M6x16 Lifting hook M8 Grommet for bottom drain position 5 pole terminal block for signals 4 pole terminal block for electrical connection Condensate drain elbow and M5 silicon washer Barbed POM elbow 10mm Drain hose Strain relief bracket 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 informat...

Page 28: ...Estate North Kingstown Wantirna South 42477 Radevormwald Birzebbuga BBG 3000 4563 Gerlafingen 4901 Ottnang 26100 Cremona RI 02852 3152 Victoria Germany Malta Switzerland Austria Italy USA Australia Tel 49 2195 68994 0 Tel 356 2220 7000 Tel 41 32 675 35 51 Tel 43 7676 20712 0 Tel 39 349 259 4524 Tel 1 401 294 6960 Tel 61 3 98 01 19 06 info de seifertsystems com info seifertsystems com info ch seifer...

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