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SiBE811001EB Test OperationCONVENI-PACK 525.2.2 Checking the Operating StateConduct a check of the operating state by the following steps. Check there is cold air being released from the refrigeration/freezer showcase, and confirm the internal temperatureis reducing. Turn the air-conditioner on using the remote controller.(Do not frequently cool/heat changeover) Check the thermostat turns OFF in the refrigerator/freezer/air-conditioner respectively.(The standard time taken for the internal temperature of the freezer to change from normal temperature to -20°C isapproximately 40 minutes.) Check the defrosting function runs normally in both the refrigerator and freezer.(After defrost in complete, check the thermostat restarts and cooling recommences)• When turning the outdoor unit OFF, ensure the operation switch to the outdoor unit is turned OFF first beforeswitching the power OFF to the outdoor unit. (By turning OFF the operation switch of the outdoor unit, the outdoorunit conducts stop control)(While operating the booster unit, if the power of an outdoor unit is shut OFF without turning OFF its operationswitch, the compressor may be damaged next time the power is turned ON, because the booster unit keepsoperating for a while.)• When turning the indoor unit for air-conditioner OFF When using the heating operation, switch the remote controller from heating to cooling. (This turns the four wayvalve to the OFF position.) After 15 minutes, turn the unit OFF using the ON/OFF button on the remote controller. After an additional 5 minutes, turn the power of the indoor unit for air-conditioner OFF. (This is because of theresidual operation of the drain pump.)(When conducting Step , there are times when the EV of the indoor unit for air-conditioner is open. This is toprevent an accumulation of refrigerant in the indoor unit for air-conditioner when the unit is OFF for long periods oftime and therefore preventing potential cooling failures in the showcase.)• When turning OFF the power of the booster unit, ensure that the operation switch of the outdoor unit or booster unitis turned OFF, and then turn OFF the operation switch of the booster unit. (By turning OFF the operation switch ofthe outdoor unit or booster unit, the booster unit controls the stop operation.)When transmission between the outdoor unit and booster unit is abnormal, turning OFF the operation switch of theoutdoor unit will not be recognized by the booster unit. In this case, turn OFF the operation switch of the booster unit,and then turn OFF the power of the booster unit.• Ensure the booster unit power is turned OFF whenever conducting such activities as charging refrigerant, closing offall liquid stop valves, or running the outdoor unit while containing the low pressure.• When checking the defrost function of the freezer, check the electric heater used for defrosting is connected topower. (If the peak temperature does not exceed 0°C when defrosting, there is a possibility the electric heater is notconnected to power.)• When conducting AIRNET test operation, ensure you conduct the tests when the system is stopped (compressor isstopped).• When pressing the "RESET button" during such times as service inspections, ensure the system is stopped(compressor is stopped).
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