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KNF Neuberger GmbH
Alter Weg 3
79112 Freiburg
Germany
Tel. +49 (0)7664 / 5909-0
Fax +49 (0)7664 / 5909-99
E-mail:
info@knf.de
www.knf.de
KNF 301425-301429 03/14
Operating Instructions
Read and observe these Operating Instructions!
Recirculating Cooler
C 900
Contents
1. About this document .................................................................. 3
2. Intended use .............................................................................. 4
3. Operator responsibility - Safety precautions ............................ 5
4. Handling .................................................................................... 6
5. Technical data ........................................................................... 8
6. Safety precautions ................................................................... 11
7. Transportation, setup, and connection .................................... 14
8. Operating and functional elements ......................................... 17
9. Initial start-up ........................................................................... 19
10. Protective features .................................................................. 25
11. Troubleshooting guide / Alarm messages ............................... 26
12. Cleaning / repairing the unit .................................................... 28
13. Accessories ............................................................................. 30
14. Returns .................................................................................... 31
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Table of Contents
Summary of Contents for KNF C 900
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Page 1: Table Of Contents
Operating Instructions Read and observe these Operating Instructions! Recirculating Cooler C 900 Contents Page 1. About this document ..............3 2. Intended use ................4 3. Operator responsibility – Safety precautions ......5 4. Handling ..................6 KNF Neuberger GmbH 5. -
Page 3: About This Document
Pass on the Operating Instructions to the next owner. Compliance with the Operating Instructions is essential for safe and reliable operation of the recirculating cooler. Failure to observe the Operating Instructions may result in damage or injury. Translation of original Operating Instructions, English, KNF 301425-301429 03/14... -
Page 4: Intended Use
Intended use Recirculating Cooler C 900 Intended use The KNF Recirculating Cooler is designed to control the tempera- ture of certain liquid media. External pump connections enable constant-temperature cooling of applications in an external loop. This recirculating cooler is operated via the splash-proof mem- brane keypad. -
Page 5: Operator Responsibility - Safety Precautions
Operator responsibility – Safety precautions Operator responsibility – Safety precau- tions The products of KNF Neuberger GmbH ensure safe operation when installed, operated, and maintained according to common safety regulations. This section explains the potential dangers that may arise when operating the recirculating cooler and also speci- fies the most important safety precautions to preclude these dan- gers as far as possible. -
Page 6: Handling
When using hazardous materials or materials that could become hazardous, the operator must affix the enclosed safety labels (1 + 2) to the front of the unit so they are highly visible: Translation of original Operating Instructions, English, KNF 301425-301429 03/14... -
Page 7: Translation Of Original Operating Instructions, English
Please contact an authorized disposal company in your country. Disposal with household waste (unsorted waste) or through similar facilities for collecting community waste is not permitted! Translation of original Operating Instructions, English, KNF 301425-301429 03/14... -
Page 8: Technical Data
Power supply 115 V / 60 Hz 115 V / 60 Hz Operating current [A] (at 115 V) Tab. 2 All measurements taken at rated voltage and frequency Ambient temperature 20 °C Translation of original Operating Instructions, English, KNF 301425-301429 03/14... -
Page 9: Translation Of Original Operating Instructions, English
The unit is not for use in potentially explosive atmospheres. DANGER EMC requirements: This unit is an ISM device of Group 1 (using high frequency for internal purposes) and is categorized in Class A (industrial and commercial field). Translation of original Operating Instructions, English, KNF 301425-301429 03/14... -
Page 10: Translation Of Original Operating Instructions, English
O-ring CR11-70 (Chloroprene rubber) Motor mounting plate Motor plate 1.4301 Pump 1.4301, 1.4401, PPS (Rytone) Sensors 2xPt100 metal 1.4571 Installation Float switch 1.4301, PP Hose fitting CuZn39Pb3 (nickel plated) Tab. 4 Translation of original Operating Instructions, English, KNF 301425-301429 03/14... -
Page 11: Safety Precautions
These instructions supplement work- place safety regulations. Connect the unit only to a mains power socket with ground contact (PE – protective earth)! These tasks may be performed only by expert per- sonnel. Translation of original Operating Instructions, English, KNF 301425-301429 03/14... -
Page 12: Translation Of Original Operating Instructions, English
Observe all safety labels! Do not remove safety labels! Never bring a unit into operation with a damaged mains power cable. Service and repairs may be performed by authorized expert personnel only. Translation of original Operating Instructions, English, KNF 301425-301429 03/14... -
Page 13: Translation Of Original Operating Instructions, English
If the overflow is sealed, the unit may be damaged if WARNING overfilled because the liquid will run into the inside of the unit. Fire hazard when using water/glycol mixture. Do not seal the overflow at the rear of the unit. Translation of original Operating Instructions, English, KNF 301425-301429 03/14... -
Page 14: Transportation, Setup, And Connection
Refer to the type label for the refrigerant volume. For 0.25 kg of refrigerant R134a, 1 m of space is required. Translation of original Operating Instructions, English, KNF 301425-301429 03/14... -
Page 15: Translation Of Original Operating Instructions, English
∅ 8/10 mm ID M10x1 outer or Return line ( hose fitting ∅ 8/10 mm ID Tab. 6 Refer to Chapter 13 for accessories like tubing, hose fittings, etc. Translation of original Operating Instructions, English, KNF 301425-301429 03/14... -
Page 16: Translation Of Original Operating Instructions, English
2. Remove screw plugs from the connections. 3. Connect the external system to the pump connectors at the rear of the recirculating cooler using appropriate tubing and hose clamps. Translation of original Operating Instructions, English, KNF 301425-301429 03/14... -
Page 17: Operating And Functional Elements
= On O = Off Display elements LED temperature display 2(1) Control display – Cooling 2(2) Control display – Alarm 2(3) Membrane keypad, splash-proof Editing keys 3(1) Setpoint higher / lower Translation of original Operating Instructions, English, KNF 301425-301429 03/14... -
Page 18: Translation Of Original Operating Instructions, English
∅ 8/10 mm ID Pump connection – return line, M10x1 outer or hose fitting ∅ 8/10 mm ID Overflow for bath tank, OD 10 mm, ID 8 mm Drain port, M10x1 outer Translation of original Operating Instructions, English, KNF 301425-301429 03/14... -
Page 19: Initial Start-Up
Use of unsuitable heat transfer liquid will result in damage Before using a non-recommended heat transfer NOTE liquid, always consult with KNF. KNF will as- sume no liability for damages resulting from use of an unsuitable heat transfer liquid. Translation of original Operating Instructions, English, KNF 301425-301429 03/14... -
Page 20: Translation Of Original Operating Instructions, English
No liability for improper power connection! Compare the provided mains voltage and the network frequency to the specifications on the type label. Refer to Chapter 5, Page 8f for permissible voltage deviations. Translation of original Operating Instructions, English, KNF 301425-301429 03/14... -
Page 21: Translation Of Original Operating Instructions, English
4 seconds. The LED will indicate the current bath temperature. Switching the unit Off: Press the Enter key for approximately 4 seconds. Switch off the unit at the power switch. Translation of original Operating Instructions, English, KNF 301425-301429 03/14... -
Page 22: Translation Of Original Operating Instructions, English
Press the key briefly for individual steps; press and hold the key to move quickly through the values. 3. Press the Enter key to store the selected value. Example: 120 minutes This time will remain in memory until changed. Translation of original Operating Instructions, English, KNF 301425-301429 03/14... -
Page 23: Translation Of Original Operating Instructions, English
The timer can be restarted. 9.7. Switching AUTOSTART on/off KNF configures and delivers the recirculating cooler according to the NAMUR recommendations. For starting, this means that the unit must go into a safe operating state after a power failure. This safe operating state is indicated by "OFF“... -
Page 24: Translation Of Original Operating Instructions, English
"AUTOSTART", make sure that unattended WARNING starting, e.g. following power failure, will not pre- sent a danger to persons or systems. Do not seal the overflow at the rear of the unit. Translation of original Operating Instructions, English, KNF 301425-301429 03/14... -
Page 25: Protective Features
CAUTION Inspect the low-liquid-level protection feature at least twice per year. To execute a functional test, drain the heat NOTE transfer liquid until the low-liquid-level alarm is triggered. Then refill liquid. Translation of original Operating Instructions, English, KNF 301425-301429 03/14... -
Page 26: Troubleshooting Guide / Alarm Messages
1. Switch off the recirculating cooler at the power switch. 2. Wait approx. 2 seconds. 3. Switch on the recirculating cooler at the power switch. If the error occurs again, a remote diagnosis must be performed. Translation of original Operating Instructions, English, KNF 301425-301429 03/14... -
Page 27: Translation Of Original Operating Instructions, English
After a short cooling interval, the unit will automatically restart. Main fuse: The unit's power switch (1) also serves as a safety cutout. After a short cooling interval, the unit can be restarted. Translation of original Operating Instructions, English, KNF 301425-301429 03/14... -
Page 28: Cleaning / Repairing The Unit
Package the unit carefully and properly. The unit must be standing upright during shipment. Label the packaging accordingly. KNF is not responsible for damages that occur as a result of improper packing. KNF reserves the right, in the interest of product improvement, to perform during the repair process any necessary technical changes that contribute to flawless functionality. -
Page 29: Translation Of Original Operating Instructions, English
3. To drain the heat transfer liquid, unscrew the drain screw at the rear of the unit. 4. Tilt the unit slightly to the rear to enable complete draining. 5. Close the drain screw after the complete emptying of the unit. Translation of original Operating Instructions, English, KNF 301425-301429 03/14... -
Page 30: Accessories
Heat transfer liquid, 10 liters 301439 Norprene® hose ID10 028187 (sold by the meter*) Hose fitting ID10 with cap GL14 301198 Caster dolly 301434 Tab. 8 * Indicate desired length in whole meters. Translation of original Operating Instructions, English, KNF 301425-301429 03/14... -
Page 31: Returns
Health and safety clearance and decontamination form. For optimal processing of a return, a copy of this declaration should be sent in advance via e-mail, regular mail, or fax to KNF Customer Service (refer to final page for address). In order to avoid... -
Page 32: Health And Safety Clearance And Decontamination Form
Health and safety clearance and decontamination form Recirculating Cooler C 900 15. Health and safety clearance and decon- tamination form Translation of original Operating Instructions, English, KNF 301425-301429 03/14... - Page 36 KNF worldwide Benelux United Kingdom Sweden, Denmark, Finland, Netherlands KNF Neuberger U.K. Ltd. Norway KNF Verder B.V. Avenue 2 KNF Neuberger AB Utrechtseweg 4a Station Lane Mejerivägen 4, NL-3451 GG Vleuten Industrial Estate P.O. Box 44060 Tel. 0031 (0)30 677 92 40...
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