Download Ultra-Low Temperature Freezers
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17 3.4.1 Installing the Power Cord Once you have verified that the power supply matches the electrical requirements of the freezer, connect the unit to the power supply using the power cord provided. CAUTION! If the plug on the power cord does not fit the outlet, or if the freezer’s voltage rating does not match your electrical supply, do not plug the freezer into the power supply. Contact your laboratory supervisor, safety officer, or qualified service or electrical engineer. # NOTE: Some freezers are supplied with more than one removable power cord. Utilize the cord that matches your power outlet. 1. Unwrap the power cord(s) provided. If you have more than one, select the correct cord for your facility’s power outlet. 2. Install the rectangular end of the cord into the power outlet at the back of the freezer. 3. Fasten the safety clip around the cord by tightening the screw located at the top of the safety clip. 4. Plug the other end of the cord into an appropriately rated power outlet. 3.4.2 Power Switch Operation The ON/OFF circuit breaker power switch is located within the lockable panel (a) at the bottom lefthand corner on models U360, U535 & U725, or (b) at the top righthand side on models U101, C585 & C760. The panel can be removed by turning the key (provided) one quarter turn to the right. The key can be removed to prevent access. Set the ON/OFF power switch to the I (ON) position. The display illuminates immediately. # NOTE: The freezer’s compressor will not operate for approximately one minute after connection of the power supply, because there is an automatic delay device in the circuit. Temperature and alarm settings, however, can be adjusted immediately. New Brunswick Scientific User’s Guide