Maintenance of preparatory work before 

Preparatory work before the maintenance, the amount of the project, so the need to do a lot of preparation before construction, a variety of the clean utensils scene with ladder; various cleaning agents, cleaning fluid equipped, the duration of the expected and arrange on-site machine type of confirmation and distribution arrangements, the engineering staff of the user with the arrangements. 

Using large protective cloth, pavement to under maintenance indoor want to prevent dust and debris from falling to the office desktop. 

Maintenance of the outdoor unit 

Check control appliances running like 

States tighten the connection point. 

Detection compressor motor insulation status (unless the current exception, otherwise do not have to be detected). 

The check conversion module working condition. 

The Check Power dissipation state. 

Detecting a working condition of the refrigeration circuit. 

Detection of mechanical working condition. 

Check the working status of the cooling fan motor. 

Check the system running state of the high and low pressure. 

Detecting unit operation state in each setting state. 

State whether accurate inspection of the plant with the action of the automatic control system on various parameters. 

Check the pipe insulation situation. 

The detection and inspection such as the problems to solve, such as the occurrence of material costs are not included in the maintenance project. 

Six months to clean the outdoor unit 

Maintenance of the indoor unit of process 

Suction / aspiration temperature measurement 

Operation sound / vibration measurement 

Pollution cleaning filters, water dish and outlet 

To determine the operating state is normal 

Adjust the air conditioning maintenance 

Point inspection found that the air conditioning fails, debug the best. 

The test outlet temperature. 

Measuring the state of the heating system operating pressure. 

Maintenance work 

Cleaning of the appearance of an indoor unit and an outdoor unit. 

Restore the site to safeguard the maintenance of the status before. 

Clean up the site, leaving no residual debris and dirt. 

Fill in the service report and test report to the user at the signature confirmation.