What does each digit represent in the model number of a trane heat pump?

0 - Basic

1 - Medium Efficiency

3 - High Efficiency

5 - Very High Efficiency

Second Digit:

0 - Non-Communicating

1 - Basic communicating

Third Digit:

_Capacity_:

1 - 17,000 - 22,000 BTUH

2 - 19,000 - 32,000 BTUH

3 - 21,000 - 35,000 BTUH

4 - 23,000 - 37,000 BTUH

5 - 25,000 - 40,000 BTUH

6 - 27,000 - 42,000 BTUH

Fourth Digit:

_Region_:

0 - North

1 - Southeast

2 - Southwest

3 - West

Fifth Digit:

0 - Non-Refrigerant Heat

1 - Single Stage Compressor

2 - Two-Stage Compressor

6 - Modulating Compressor

Sixth Digit:

0 - Scroll

1 - Single Compressor

3 - Two-Compressor