matching units

[fliks]

I have a 1.5 ton system, outside is a goodman heatpump #cpke18-18 and the inside is a first co. furdown unit #18hx5-240 with a 51 orfice. I've been told that I could use a 24x6 inside coil with a 59 orfice also a first co. I'm a little concerned about Low head, high suction, and possible floodback. Also would the effeciency be as good. Thanks guys

[m-cooling]

http://www.bristolcompressors.com/Myths%20Regarding%20Mismatched%20Coils2.pdf

[PACKLEADER]

yes you can use the 24x6 coil if you had to but losing your seer rating