Sanyo MDF-U32V - Manual

7 ENVIRONMENTAL CONDITIONS This equipment is designed to be safe at least under the following conditions (based on the IEC-1010-1): 1. Indoor use; 2. Altitude up to 2000 m; 3. Ambient temperature 5 o C to 40 o C 4. Maximum relative humidity 80% for temperature up to 31 o C decreasing linearly to 50%...

8 FREEZER COMPONENTS 8 1 6 2 4 12 15 （ inside ） 14 5 3 11 17 18 16 5 （ inside ） 10 9 7 13

10 FREEZER COMPONENTS Control panel and keypad 1. Buzzer stop key (BUZZER): To silence the audible alarm under alarm condition, press this key. The buzzer during alarm test cannot be silenced by this key. 2. Set key (SET): Temperature setting mode is led by pressing this key and the changeable digit...

11 INSTALLATION Installation site To operate this unit properly and to obtain maximum performance, install the unit in a location with the following conditions: 1. A location not subjected to direct sunlight Installation in a location subjected to direct sunlight may lead to inadequate cooling. 2. A...

12 INSTALLATION Installation 1. Remove the packaging materials and tapes Remove all transportation packaging materials and tapes. Open the doors and ventilate the unit. If the outside panels are dirty, clean them with a diluted neutral dishwashing detergent. (Undiluted detergent can damage the plast...

13 OPTIONAL COMPONENTS Temperature recorder An automatic temperature recorders is available for this freezer as the optional component. The type of the recorder is MTR-G85. Following shows the attachment procedure. 1. Remove four screws on the front panel and take it off. By removing four screws, ta...

15 OPTIONAL COMPONENTS Inventory rack The optional inventory rack is useful to store the precious materials in the chamber effectively. When the rack is used, it is necessary to adjust the height of the shelves. Set the shelf support as shown in the figure below. IR-216U IR-220U Shelf support Shelf ...

17 TEMPERATURE SETTING Chamber temperature Table 1 shows the basic procedure for setting the chamber temperature. Perform key operations in the sequence indicated in the table. The example in the table is based on the assumption that the desired temperature is -75 o C. Note: The unit is set at the f...

18 TEMPERATURE SETTING Alarm temperature setting This unit is provided with the high and low temperature alarm and the temperature at which the alarm is activated is changeable. The following procedure shows the setting of alarm temperature according to the condition below: High temperature alarm: a...

19 ALARMS & SAFETY FUNCTIONS This unit has the alarms and safety functions shown in Table 5, and also self diagnostic functions. Table 5. Alarms and safety functions Alarm & Safety Situation Indication Buzzer Safety operation High temperature alarm If the chamber temperature is higher than t...

20 SETTING OF ALARM RESUME TIME The alarm buzzer is silenced by pressing BUZZER key on the control panel during alarm condition (The remote alarm is not silenced). The buzzer will be activated again after certain suspension if the alarm condition is continued. The suspension time can be set by follo...

21 REMOTE ALARM TERMINAL The terminal of the remote alarm is installed at the lower left side of the unit. The alarm is outputted from this terminal. Contact capacity is DC 30V, 2 A. Contact output: between COM. and N.O. between COM. and N.C. At normal Open Close At abnormal Close Open Note: The ala...

22 MONITOR OF FREEZER STATUS The freezer has a function to monitor the running status of the unit as shown in table 7 below. This is to notice the running status getting worse (not failure). 1. The STATUS lamp is lit when one of the running status shown in table 7 is detected. 2. The S code (--X, X:...

23 CHANGE OF COMPRESSOR DELAY TIME The delay time of high and low stage side compressor can be changed to reduce the load on the power line and to facilitate the start-up (reset) of the freezer after power failure. The example in the table is based on the assumption that the delay time is changed to...

24 ROUTINE MAINTENANCE WARNING Always disconnect the power supply to the unit prior to any repair or maintenance of the unit in order to prevent electric shock or injury. Ensure you do not inhale or consume medication or aerosols from around the unit at the time of maintenance. These may be harmful ...

25 ROUTINE MAINTENANCE Defrosting of inside wall The frost is built at the upper portion of the chamber and inner door. The excessive frost possibly make some gap between the cabinet and door gasket, which may cause poor cooling. Remove the frost on the inner door with a scraper enclosed with the un...

26     TROUBLESHOOTING     If the unit malfunctions, check out the following before calling for service. The chamber is not cooled at all 1. The circuit breaker of power source is active. 2. The voltage is too low. (The status code “--2” is displayed. See page 22.) In this case, call an electrician....

27 RECYCLE OF RECHARGEABLE BATTERY The unit contains a rechargeable battery. The battery is recyclable. At the end of it’s useful life, check with you local solid officials option or proper disposal. 1. Location of a nickel-metal-hydride battery This unit is provided a nickel-metal-hydride battery f...

28 SPECIFICATIONS     Name   Ultra-Low Temperature Freezer   Model   MDF-U32V External dimensions   W670 x D875 x H1860 (mm) Internal dimensions   W490 x D600 x H1140 (mm) Effective capacity   333 L Exterior   Acrylic finish baked on zinc galvanized steel   Interior   Acrylic finish baked on zinc ga...

29 CAUTION Please fill in this form before servicing. Hand over this form to the service engineer to keep for his and your safety. Safety check sheet   1. Refrigerator contents : Risk of infection: Risk of toxicity: Risk from radioactive sources: (List all potentially hazardous materials that have b...