LG MultiSITE MS8000 Series - Page 47

47
User Manual
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CONFIGURATION SCREENS
MS8650 Conguration 4 / 11
MS8650 Configuration 4 / 11
Figure 36: MS8650 Conguration 4 / 11 Display.
For MS8650 Only
4/11 Configuration
Frost protec.
Heating CPH
Cooling CPH
Off
4
4
BO1 aux. config
NO
Anti short cycle
2 min
64 °F
Min sup. heat
Table 30: MS8650 Conguration 4 / 11 Parameter Details.
Conguration Parameters Default Value Signicance and Adjustments
Cooling CPH (Cooling Output Cycles
Per Hour)
Default Value: 4 CPH
CPH is used to “modulate” On/Off outputs controlling equipment such as compressors. When the
Room Temperature is within the Proportional Band, the output performs 3 or 4 CPH. A higher CPH
represents a higher accuracy of control at the expense of wearing mechanical components faster.
The CPH does not limit the number of Cycles Per Hour. It is limited by the “Anti short cycle” parameter.
4 CPH is typical for Rooftop applications.
Range: 3 to 4 CPH
Heating CPH (Heating Stages Cycles
per Hour)
Default Value: 4 CPH
CPH is used to “modulate” On / Off outputs controlling equipment such as compressors. When
the Room Temperature is within the Proportional Band, the output performs 3 to 8 CPH. A higher
CPH represents a higher accuracy of control at the expense of wearing mechanical components
faster.
For multi-stage models, heat cph applies to W1 and W2. A CPH value between 6 - 8 is recom-
mended for applications with electric heating. For gas applications set CPH to 4 and for oil
applications set CPH to 3.
Range: 3 to 8 CPH
Frost protec. (Frost Protection)
Default Value: Off
Stops the ventilation of the rooftop unit when room temperature reaches 42°F (5.6°C) and
resumes automatically when room temperature exceeds 15°F (-9°C).
Off: No room frost protection
On: Room frost protection enabled in all system modes at 42°F (5.6°C).
Frost protection is enabled even if System mode is “Off”.
Choices: Off or On
BO1 Aux. Config (Binary Auxiliary
Output Configuration)
Default Value: NO
Output to directly follow the main Occupancy and Fan On commands.
1. NO: Occ or St-By = Contact Closed / Unoccupied = Contact Opened
2. NC: Occ or St-By = Contact Opened / Unoccupied = Contact Closed.
Choices: NO or NC