19
STEP 6 - Adjust refrigerant level to attain proper
gage pressure.
Add refrigerant if the design subcooling is lower
than the chart value.
Recover refrigerant if the subcooling is higher
than the chart value.
Note: When the subcooling match the chart,
the system is properly charged.
Connect gages to refrigerant bottle and unit
as illustrated.
Purge all hoses.
Open bottle.
Stop adding refrigerant when subcooling.
matches the charging chart Final Subcooling
value.
1.
2.
3.
4.
STEP 7 - Stabilize the system.
Wait 5 minutes for the system condition to
stabilize between adjustments.
1.
2. Remove gages.
3. Replace service port caps to prevent leaks.
Tighten finger tight plus an additional 1/6 turn.
STEP 8 - Record System Information for reference.
Record system pressures and temperatures
after charging is complete.
Outdoor model number =
Measured Outdoor Ambient =
Measured Indoor Ambient =
Measured Liquid Line Temp =
℉
℉
Liquid Gage Pressure =
Suction Gage Pressure =
PSIG
PSIG
℉
Measured Suction Line Temp =
℉
20 MIN.
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