Rheem Heat Pump Age

[Stephen P. Shockley]

I came across the heat pump below yesterday and want to make sure I'm reading the age of the unit correctly, because I was told that it was the original unit that was put in when the house was built in 1990. I see this unit as being manufactured in 2000, which means it had to have been a replacement unit.

Rheem, Model No. RPNJ-031JAZ, Serial No. 6158 M2100 18568


Regards,

Steve

[pnarron]

If it was a furnace it would be the 21 week of 2000. In the seral number the 4 numbers following the M are the week and year of mfg M2100. I will double check to see if that would be the same for the heat pump.

[Christopher Currins]

That's what I have too.

Rheem & Rudd: in the middle of the serial number will be a letter "F" or "M" the following four numbers are the week and year.

and here

[Stephen P. Shockley]

Thanks. So it is obvious that this unit was replaced.


Regards,

Steve

[Marcel Gratton]

Originally Posted by pnarron

If it was a furnace it would be the 21 week of 2000. In the seral number the 4 numbers following the M are the week and year of mfg M2100. I will double check to see if that would be the same for the heat pump.

That sounds about right, same for an AC.