Quote:
Originally Posted by gmercoleza
Charging by sight glass is guessing at best -
|
I've always thought that using the sight glass was perfectly adequate. Else why would it be there.
What the system wants is a steady stream of liquid refrigerant coming from the drier, thru the sight glass to the evaporator. The sight glass gives you that info.
Yes, if you are wildly overcharged or undercharged the sight glass can be misleading.
The reason systems with accumulators don't have sight glasses is because there are always some bubbles in those systems. Hence, the sight glass
would be misleading in that case and the gauges would be the only way to go.