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060A Models
SUBCOOL CHARGING CHART CORRECTIONS TABLE (FOR LINE LENGTH AND RISE)
60
50
40
30
25
20
15
10
Add 1° of Subcooling
Design
0
10
20
TOTAL REFRIGERANT LINE LENGTH (FEET)
14.3 Charging the Unit
STEP 1 - Attain Proper Gage Pressure.
Using the Standard R-454B Subcool Charging Chart,
adjust refrigerant level to attain proper gage pressure.
Note: Use bubble point, per the included chart, for
calculating subcooling.
Add refrigerant in the Liquid Gage Pressure is lower
than the chart value.
1. Connect gauges to refrigerant bottle and unit are
illustrated.
2. Purge all hoses.
3. Place refrigerant bottle on a scale and then open
bottle.
4. Stop adding refrigerant when liquid line refriger-
ant and Liquid Gage Pressure match the charging
chart.
Note: Recover refrigerant if the Liquid Gage Pressure
is higher than the chart value.
Note: Ensure that contamination of different refriger-
ants does not ___ when using charging equipment.
Cylinders shall be kept in an appropriate position
according to the instructions. Ensure that the
REFRIGERATING SYSTEM is earther prior to
charging the system with refrigerant.
STEP 2 - Stabilize the system.
1. Wait 20 minutes for the system
condition to stabilize between
adjustments.
Note: When the Liquid Line Temperature
and Gage Pressure approximately match the
chart, the system is properly charged.
2. Remove gages.
3. Replace service port caps to prevent
leaks. Tighten finger tight plus an
additional 1/6 turn.
88-A5HP4001-1A-EN
Add 6°
Add 5° of Subcooling
Add 4° of Subcooling
Add 3° of Subcooling
Add 2° of Subcooling
25
30
40
60
Design Subcooling Value = __________º F
(from nameplate or Service Facts)
Subcooling Correction = __________º F
Final Subcooling Value = __________º F
20 MIN.
15
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