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Trial Operation and Testing <br /> 1 . Trial operation and testing W <br /> • Trial operation should be carried out in either COOL or HEAT operation. <br /> 1-1. Measure the supply voltage and make sure that it is within the specified range. <br /> 1-2. In COOL operation, select the lowest programmable temperature; <br /> in HEAT operation, select the highest programmable temperature. <br /> 1-3. Carry out the trial operation following the instructions in the operation manual to <br /> ensure that all functions and parts, such as the movement of the flap, are working <br /> properly. <br /> • To protect the air conditioner, restart operation is disabled for 3 minutes after the system has been turned off. <br /> 1-4.After trial operation is complete, set the temperature to a normal level (78°F <br /> to 82°F (26°C to 28°C) in COOL operation, 68°F to 75°F (20°C to 24°C) in HEAT <br /> operation). <br /> • When operating the air conditioner in COOL operation in winter,or HEAT operation in summer, activate trial operation <br /> mode by following the instructions in the installation manual for the indoor unit. <br /> • The air conditioner draws a small amount of power in its standby mode.If the system is not to be used for some time after <br /> installation,shut off the circuit breaker to eliminate unnecessary power consumption. <br /> • If the circuit breaker trips to shut off the power to the air conditioner,the system will restore the original operation mode <br /> when the circuit breaker is opened again. <br /> 2. Test items <br /> Test items Symptom Check <br /> Indoor and outdoor units are installed properly on solid bases. Fall,vibration, noise <br /> No refrigerant gas leaks. Incomplete cooling/heating <br /> function <br /> Refrigerant gas and liquid pipes and indoor drain hose extension are Water leakage <br /> thermally insulated. <br /> Draining line is properly installed. Water leakage <br /> System is properly grounded. Electrical leakage <br /> The specified wires are used for inter-unit wiring. No operation or burn damage <br /> Indoor or outdoor unit's air inlet or air outlet are unobstructed. Incomplete cooling/heating <br /> function <br /> Stop valves are opened. Incomplete cooling/heating <br /> function <br /> Indoor unit properly receives remote control commands. No operation <br /> •English 12 <br />