Unit Operation - Friedrich KUHL R-410A Service Manual

UNIT OPERATION

There are two basic ways to operate the unit - Front Panel and Wallstat. The Front Panel and Wallstat are never active at the
same time. Switching between these modes is controlled via the (FP) jumper on the Wallstat connector. When the jumper is
ON, the mode = Front Panel.
Front Panel
System Mode Sequence (SCHEDULE = OFF)
There are two system modes of operation. One for a cool only unit (see figure 1) and one for a heat-cool unit (see figure 2).
System parameters for each system mode are saved when exiting a system mode, and retrieved when entering a new
system mode.
Figure 1
System Mode: Cool Only Units
Figure 2
System Mode: Heat - Cool Units
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