Lennox LGT156H Installation Instructions Manual page 23

2- Add or remove charge in increments. Allow the
system to stabilize each time refrigerant is added or
removed.
3- Continue the process
temperature agrees
temperature. Do not go below the target liquid
temperature when adjusting charge. Note that
suction pressure can change as charge is adjusted.
until measured liquid
with the target liquid
4- Example: At 95°F outdoor ambient and a measured
suction pressure of 130psig, the target liquid
temperature is 98°F. For a measured liquid
temperature of 106°F, add charge in increments until
measured liquid temperature agrees with the target
liquid temperature.
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