Panasonic CS-A24BB4P Service Manual page 139

(*2) / Outdoor unit fan control during heating mode operation / When the compressor is on
during heating mode operation (except during defrosting and when the liquid bypass valve is
on), the outdoor unit fan is controlled by means of input (CN2) indicating whether the contact of
the heating pressure switch on the outdoor unit circuit board is open or closed. / (At the start of
heating mode operation, the fan operates at HI speed.)
27.5. Hot starting
1. When heating mode operation starts
A. Start
Hot start control commences when heating mode operation
starts.
B. Operation
"PREHEAT" appears on the remote control display. (Other
displays remain unchanged.) / The indoor unit fan stops. In
addition, during hot starting, the louvre stays at the horizontal
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