Carrier 42TGV0131CP Service Manual

Check afterrepairDo notoperate theunit with thevalve closed.Check afterreinstallationCooling checkInstallationOnce the repair work has been completed, check for refrigerant leaks, and check the insulationresistance and water drainage.Then perform a trial run to check that the air conditioner is running properly.After repair work has finished, check there is no trouble. If check is not executed, a fire, electricshock or injury may be caused. For a check, turn off the power breaker.After repair work (installation of front panel and cabinet) has finished, execute a test run to checkthere is no generation of smoke or abnormal sound.If check is not executed, a fire or an electric shock is caused. Before test run, install the frontpanel and cabinet.Check the following matters before a test run after repairing piping.• Connect the pipes surely and there is no leak of refrigerant.• The valve is opened.Running the compressor under condition that the valve closes causes an abnormal highpressure resulted in damage of the parts of the compressor and etc. and moreover if there isleak of refrigerant at connecting section of pipes, the air is suctioned and causes furtherabnormal high pressure resulted in burst or injury.Only a qualified installer ( 1) or qualified service person ( 1) is allowed to relocate the air conditioner. It is dangerous for the air conditioner to be relocated by an unqualified individual since a fire, electric shocks, injury, water leakage, noise and/or vibration may result.Check the following items after reinstallation.1) The earth wire is correctly connected.2) The power cord is not caught in the product.3) There is no inclination or unsteadiness and the installation is stable.If check is not executed, a fire, an electric shock or an injury is caused.When carrying out the pump-down work shut down the compressor before disconnecting therefrigerant pipe.Disconnecting the refrigerant pipe with the service valve left open and the compressor stilloperating will cause air, etc. to be sucked in, raising the pressure inside the refrigeration cycle toan abnormally high level, and possibly resulting in reputing, injury, etc.When the service panel of the outdoor unit is to be opened in order for the compressor or thearea around this part to be repaired immediately after the air conditioner has been shut down, setthe circuit breaker to the OFF position, and then wait at least 10 minutes before opening theservice panel.If you fail to heed this warning, you will run the risk of burning yourself because the compressorpipes and other parts will be very hot to the touch. In addition, before proceeding with the repairwork, wear the heat-resistant gloves.When the service panel of the outdoor unit is to be opened in order for the fan motor, reactor,inverter or the areas around these parts to be repaired immediately after the air conditioner hasbeen shut down, set the circuit breaker to the OFF position, and then wait at least 10 minutesbefore opening the service panel.If you fail to heed this warning, you will run the risk of burning yourself because the fan motor,reactor, inverter heat sink and other parts will be very hot to the touch.In addition, before proceeding with the repair work, wear the heat-resistant gloves.Only a qualified installer ( 1) or qualified service person ( 1) is allowed to install the air conditioner. If the air conditioner is installed by an unqualified individual, a fire, electric shocks, injury, water leakage, noise and/or vibration may result.Before starting to install the air conditioner, read carefully through the Installation Manual, andfollow its instructions to install the air conditioner.Do not install the air conditioner in a location that may be subject to a risk of expire to acombustible gas.If a combustible gas leaks and becomes concentrated around the unit, a fire may occur.Install a circuit breader that meets the specificaations in the installation manual and the stipulationsin the local regulations and laws.Install the circuit breaker where it can be easily accessed by the agent.Do not place any combustion appliance in a place where it is directly exposed to the wind of airconditioner, otherwise it may cause imperfect combustion.FILE NO. SVM-19024- 10 -