Fieldpiece HG3 - Wireless HVAC Guide System Analyzer - Manual (Page 14)

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2.3 Superheat OUTPUT FORM
Outputs
Target SH
(Target Superheat) Indicates what the superheat should be. For
Custom SH Table it is the manufacturer's recommended superheat en-
tered by the tech. For Standard SH Table it is calculated from Return
Wet Bulb and Outdoor Dry Bulb.
Actual SH
(Actual Superheat) Shows the superheat calculated from the
measured suction line temperature and suction line pressure.
Vapor Sat This is the vapor saturation temperature (boiling point) of the
refrigerant in the evaporator coil. Calculated from SL Pressure.
Suggested Actions
Suggested actions are displayed to correct the
problem. Use the down arrow to scroll down OUTPUT FORM. Be-
cause everything within the system is interdependent, one adjust-
ment can affect the whole system. Tests should be used together such
as Superheat 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.
Keep scrolling through the
OUTPUT FORM to see all
suggested actions.
Superheat OUTPUT FORM.
Superheat OUTPUT FORM continued from above.
The OUTPUT FORM displays
the results of the test.
Compare the Target SH to
the Actual SH. The difference
should be about 5 °F.
Use suggested actions to fix
the problem. Scroll down to
see more.