I guess it depends on how old the refer is. IF the refer has been operating on LP just fine, then the position of the manual cut off is not a concern. The "T" of the actual handle should be pointing at the incoming copper/rubber LP supply line. In 43 years as a Tech, I have NEVER had that valve as a problem with Flame. Either it was ON or OFF. Never halfway. Doug
PS, your N7 should have a slot screw.