Panasonic U-8ME1E81 Service Manual page 28

6. Indoor Units Control from the CCU
6-2. RAP valve kit
The RAP valve kit connection might be required on the Type E1 indoor unit.
Mode of Mode of
indoor unit outdoor unit
Stop Cooling
Heating
1
Fan (only) Cooling
Heating
Cooling Cooling
Heating Heating
*RAP valve kit state (ON/OFF) is displayed on "D" in DSBE column when the Checker software is used.
0：OFF
1：ON
In case of special controls, RAP valve kit performs special operation. For details, refer to Special Controls
section.
6-3. Indoor Fan Speed Control
CCU intervenes in fan control of the indoor unit according to the state at the operating mode below.
The priority order of fan control by CCU is higher than that of indoor units.
6-3-1. Dry mode
Indoor unit fan operated in the dry mode is controlled from CCU as shown in the below figure.
DTi = (Intake temperature of indoor unit) - (Preset temperature in remote controller)
Compressor Thermostat
ON/OFF
Stop -
Operation -
Stop -
Operation -
Stop -
Operation -
Stop -
Operation -
Stop -
Operation OFF
ON
Stop -
Operation OFF
ON
DTi
Fan speed set by remote controller
+1
Fan speed is "L" when thermostat ON
Fan speed is "LL" when thermostat OFF
Control Functions - Outdoor Unit
RAP valve kit
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
ON
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2WAY SYSTEM