EAc6 Enhanced Refrigerant Management

Roshni- Hopefully this helps (Mechanical people- call me out if any of this is incorrect) Qunits is your tonnage, or your capacity to heat/cool.  Typically, cooling always dictates, so your tonnage is frequently based off your cooling.  You may hear things like a 1 ton unit, 1/2 ton unit for your house or an apartment "unit."  On your cutsheets, you may not see the tonnage, but you may see the BTU per hour (BTU/h).  The conversion is that 12,000 BTU/h equals 1 ton.  The way I understand it is that "tons" are used just because it's an easier number to convey rather than BTU/h.   Regarding refrigerant charge (Rc), this should be listed on the cutsheet.  What I'm trying to figure out is if my cutsheet typically lists the charge in lbs per ton, or if I need to do the quick math to get this.  For example:  I have a 1 1/2 ton ductless split system.  It's charge is 4.5lbs.  I do not know if this is 4.5lbs per 1 ton or 4.5lbs per 1.5 tons.