Serial Side Track How Can I Prove The A/c Repair Man Charged Me For New Equipment But Installed Old/used Parts?

How can I prove the a/c repair man charged me for new equipment but installed old/used parts? - serial side track

Last summer, went out of my A / C. The owners of the company said repairs, replaces that both the coil on the inside and the condensing unit on the roof because of the age should be.

Yesterday I was on the roof to find the source of a noise that lasted all night and morning. We were victims, had some strong winds and the sound was most evident in the vicinity of the A / C closet upstairs in the house. When I got on the roof was not happy with what I found. The strength of this complex was completely sub-standard. The furnace vent cap was folded a piece of metal "V" and on the vent pipe on the one hand very tightly connected with a screw placed. The wind lifted the piece of sheet Hense had listened to the noise was. The next thing I noticed that the lines were not properly insulated. In some places, there was no insulation at all. May be I am Following a further inspection of the condensing unit 99.9% sure that this device could not, if new install.

I worked in property management for 20 yearsand have become very familiar with the appearance of normality, it relates to exposure to the elements. I noticed the model number (s), serial number and reference number .. I want to know, monitor the control easier and better to / this unit with the information I have taken note of unity. I intend to contact the owners of the company, but is seeking the facts do before on this CD. I've tried to do a Google search using the model number and serial number, but it could not be everywhere. Is there a database specifically for this type of research accessible to the public designed?

Who can provide information on this subject would be very grateful!