Sanyo MPR-1013R Instruction Manual - Page 16

START-UP OF UNIT Follow the procedures for the initial and consequent operations of the unit.

1. Connect the power cord to the dedicated outlet with appropriate rating. 2. On start-up, the alarm buzzer sometimes operates. In this case, stop the buzzer by pressing the alarm stop key (BZ). 3. Set the chamber temperature to 5oC. 4. Allow the chamber temperature to fall to 5oC. Check the chamber temperature on the temperature indicator. 5. Turn on the fluorescent light switch to check the light. After checking, turn off the switch if the light is not necessary. 6. Set the desired temperature. When the chamber temperature gets to the set temperature, begin slowly placing items into the chamber to minimize the temperature rise. DEFROST CYCLES There is no need for routine defrosting of the unit as this occurs automatically as follows: 1. Cycle defrost To keep the chamber temperature stable, the refrigeration compressor is cycled on and off. During "off" period any frost which has accumulated on the evaporator is melted by energizing a defrost heater. This will not have any discernible effect on the chamber temperature. 2. Forced defrost When the ambient humidity is high, or a large amount of damp product is being stored inside the chamber, there is a possibility that cycle defrost may not be enough to remove all of the frost on the evaporator. In this case, a forced defrost cycle can be initiated. When the unit is operating under a forced defrost cycle, the current chamber temperature and dF is displayed alternately on the digital temperature display. Once the forced defrost cycle is completed, normal operation resumes. CAUTION The unit may collect excessive frost on the evaporator if it is installed in high temperature and high humidity location. For example, the unit starts to defrost once a week with 2oC setting in the ambient of 35oC and 80% R.H. The chamber temperature goes up to approximately 10oC temporarily during defrosting. 15