User Instructions Lab* Frost Ultra Low Temperature Freezers Model LAB
SAFETY INFORMATIONS The LAB freezers contains environmentally friendly but flammable refrigerants. It means danger of explosion if for any reason the refrigerants are allowed to escape from the system. The refrigeration system must never be accessed by unauthorized personal. When transporting and installing the unit, ensure that no part of the tubing system is damaged. If the tubing is damaged and leak occurs, avoid any ignition sources and naked flames near the unit, and ventilate the room immediately.
USER INSTRUCTIONS Congratulations with your new freezer, we feel certain that it will be very useful to you for many years ahead. To obtain optimal benefit from your freezer, please read the following instructions thoroughly and act accordingly. The low-temperature freezers are used for freezing and long-term storing of food products, medical preparations (vaccines, blood plasm, ect.) and other biological products. 1.
allow the heat from the compressor motor to dissipate. Underneath the appliance these should be a gap of 15 mm approx. (1/2”). On a soft surface, e.g. carpet, it may be necessary to ensure the correct distance by means of spacers. 8. Operating the freezer The empty freezer should be switched on for at least 5-6 hours prior to loading of the freezer. The freezer should not be loaded above the inside walls which is also the load line limit.
compartment grill, and clean the compressor compartment eventually with a vacuum cleaner. 14. Dixell controller If the cleaning process is neglected there is a risk that the performance of the freezer will be effected, and even damage to the compressor could occur due to overheating. 15. Functions How to see the set point: 1. Press and immediately release the SET key, the display will now show the set point value. 2.
value in order to get a correspondence between the reading on the display and the actual temperature inside the cabinet. The offset can be adjusted in the following way: Has an excess amount of ice formed inside the appliance? If you have checked the above points and the appliance is still not working as expected, please contact your local dealer for further advice. Unlock the keyboard. 18. LN2 or LCO2 back-up Enter the programming mode by pressing the SET and arrow down keys for 3 seconds.
Digital controller with off cycle defrost and AUX relay XR30CH 4. FRONT PANEL COMMANDS CONTENTS 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12. 13. 14. 15. 16. 17.
7. PARAMETERS 6.2 HOW TO CHANGE THE SETPOINT 1. Push the SET key for more than 2 seconds to change the Set point value. 2. The value of the set point will be displayed and the “°C” or “°F” LED starts blinking; 3. To change the Set value push the or arrows within 10s. 4. To memorise the new set point value push the SET key again or wait 10s. 6.3 HOW TO START A MANUAL DEFROST Push the DEF key for more than 2 seconds and a manual defrost will start. 6.
CONDENSER TEMPERATURE ALARM (detected by the fourth probe) AP2 Probe selection for temperature alarm of condenser: nP = no probe; P1 =thermostat probe; P2 = evaporator probe; P3 =configurable probe; P4 = Probe on Hot Key plug. AL2 Low temperature alarm of condenser: (-55÷150°C) when this temperature is reached the LA2 alarm is signalled, possibly after the Ad2 delay.
12.1 PROBE CONNECTION 15. TECHNICAL DATA The probes shall be mounted with the bulb upwards to prevent damages due to casual liquid infiltration. It is recommended to place the thermostat probe away from air streams to correctly measure the average room temperature. Place the defrost termination probe among the evaporator fins in the coldest place, where most ice is formed, far from heaters or from the warmest place during defrost, to prevent premature defrost termination. 13. HOW TO USE THE HOT KEY 13.
17. FACTORY SETTINGS DIXELL XR30CH Lable 17. D E F A U L T S E T T I N G V A L U E S Set Hy LS US Ot OdS AC CCt CCS COn COF CH CF rES dLy IdF MdF dFd dAd ALc ALU ALL AFH ALd dAo tbA AoP i1P i1F did nPS odc rrd HES Adr.
User Instructions Ultra Low Temperature Freezers Model LAB S i d e 11 | 14
User Instructions Ultra Low Temperature Freezers Model LAB S i d e 12 | 14
User Instructions Ultra Low Temperature Freezers Model LAB S i d e 13 | 14
User Instructions Ultra Low Temperature Freezers Model LAB S i d e 14 | 14
