The Model # was a little torn and worn after the SPD so I could not read a couple of them but this is what I got-SPD…40701A. Serial # 9103077436
It is a gas comb. unit
First two digits of the serial number are the year. Second two are the month.
1991 - March
Thanks for the quick response Jae. I always thought Amanas were more complicated than that.
They used to use what was called the “blackhorse” system–very complicated. The company was sold to Goodman about 1988 and everything got easier.