Fieldpiece HG3 - Wireless HVAC Guide System Analyzer - Manual (Page 17)

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3.3 Subcooling OUTPUT FORM
Outputs
Target SC
(Target Subcooling) Indicates what the subcooling should be
from the manufacturer’s specifications. The HVAC Guide uses a built in
conservative estimate when manufacturer’s specifications are not avail-
able.
Actual SC
(Actual Subcooling) Displays the subcooling calculated from
the measured liquid line temperature and liquid line pressure.
Liquid Sat This is the saturation temperature of the refrigerant in the con-
denser coil. It is one of the temperatures from which subcooling is cal-
culated.
Suggested Actions
Suggested actions are displayed to correct the
problem. Use the down arrow to scroll down the OUTPUT FORM.
Because everything within the system is interdependent, one adjust-
ment can affect the whole system. Tests should be used together such
as Subcooling to correct refrigerant charge and Target Evap Exit
Temp to correct airflow across the evaporator coil.
See Sec (See Section) The section numbers on the OUTPUT FORM refer to
the sections in this manual with more detailed information about each
test.
Subcooling OUTPUT FORM.
Subcooling OUTPUT FORM continued from above.
Compare the Actual SC to the
Target SC. Actual subcooling
should be within about 3°F
the target subcooling.
The OUTPUT FORM displays
the results of the test.
Keep scrolling through the
OUTPUT FORM to see all
suggested actions.
Use suggested actions to fix
the problem. Scroll down
with the arrows to see more.