The correct kit for the installation is determined by the voltage and amperage of the electrical circuit, and the amount of heat strip generated heat that is desired.  GE Zoneline PTAC units must be purchased with a power cord for installation.

Heat Strip BTU Output:

RAK3153: 8600/7100 BTU
RAK3203: 11700/9600 BTU
RAK3303: 17000/13900 BTU