Carrier Heat Pump Decoding

[Brian Harwood]

Can anyone advise the size of the following 1998 Carrier heat pump: Model-50ZH--036--301, SN-3798G42150?

[c francis]

Not sure, new to this, but I would think that the 36 in the model number would ref to btu making it a 3 tonne... Unit bow many pumps on flow centre?

[Kent Keith]

Can anyone advise the size of the following 1998 Carrier heat pump: Model-50ZH--036--301, SN-3798G42150?

Should be a 3 ton system
12 btu per ton 36/12=3 tons

Year should be numbers before the middle letter on Carrier systems = 1998