LG MultiSITE MS8000 Series User Manual page 55

Table 38: MS8650 Configuration 8 / 11 Parameter Details, continued.
Configuration Parameters Default Value
Comf. or Econ. (Comfort or Economy
Mode)
Default Value: Comfort
Rev. Valve (Reversing Valve Operation)
Default Value: O
Comp. Interlock (Compressor Auxiliary
Interlock)
Default Value: Off
Sets the operation and interaction mode of the heat pump with the auxiliary heat.
Comfort mode: In Heating mode, if the heat pump is not able to satisfy the heating setpoint,
the auxiliary heat gets energized to satisfy the same heating setpoint.
Economy mode: In Heating mode, if the heat pump is not able to satisfy the heating set-
point, the auxiliary heat gets energized to satisfy only when the temperature drops 2.0°F
(1.1°C) below the heating setpoint. Selecting economy mode adds a deadband between
the heat pump and auxiliary heat in heating mode. The actual temperature maintained will
be lower than the true heating setpoint to maximize the heat pump operation. When the
outdoor air temperature drops below the low balance point, the deadband gets eliminated
and the auxiliary heat maintains the true heating setpoint alone.
Choices: Comfort or Economy
Heat pump reversing valve operation.
O: energize valve in cooling operation.
B: energize valve in heating operation.
Choices: O or B
Sets the operation and interaction mode of the heat pump with the auxiliary heat.
Off: In Heating mode, if the heat pump is not able to satisfy the heating setpoint, the auxil-
iary heat gets energized at the same time as the heat pump stage. Typically applies when
the air handler heat pump coil is installed before the auxiliary heat (all electric systems).
On: In Heating mode, if the heat pump is not able to satisfy the heating setpoint, the
auxiliary heat gets energized and the heat pump is cut off. Typically applies when the air
handler heat pump coil is installed after the auxiliary heat (add on systems) There is a 2
minute delay to restart the heat pump when the auxiliary heat is shut down.
Choices: Off or On
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CONFIGURATION SCREENS
MS8650 Configuration 8 / 11
Significance and Adjustments
For MS8650 Only
55