Power-Airflow Dual Louvers, Wide-Angle Fins And Auto-Swing - Daikin FTXS09HVJU Service Manual

Main Functions
The inverter provides the following features:
Inverter Features
 The regulating capacity can be changed according to the changes in the outdoor air
 Quick heating and quick cooling.
 Even during extreme cold weather, a high capacity is achieved. It is maintained even when the
 Comfortable air conditioning
 Energy saving heating and cooling
Frequency Limits The following table shows the functions that define the minimum and maximum frequency:
Low
High
Forced Cooling For more information, refer to "Forced operation mode" on page
Operation
1.2 Power-Airflow Dual Louvers, Wide-Angle Fins and Auto-
Swing
Power-Airflow The large louvers send a large volume of air downwards to the floor. The louvers provides an
optimum control area in cooling, heating, and dry mode.
Dual Louvers
Heating Mode
During heating mode, the large louver directs warm air straight downward and across the floor to
pervade the entire room.
Cooling / Dry Mode
24
temperature and cooling / heating load.
The compressor rotational speed is increased when starting the heating (or cooling) operation.
This enables the setpoint to be reached quicker.
Air discharge
temperature
113˚F
Start
outdoor air temperature is 36°F(2°C).
A detailed adjustment is integrated to ensure a fixed room temperature. It is possible to air
condition with a small room temperature variation.
Once the set temperature is reached, the energy saving operation maintains the temperature at
low power.
Frequency limits
 Four-way valve operation compensation. Refer to page 39.
 Discharge pipe temperature control. Refer to page 46.
 Input current control. Refer to page 40.
 Compressor protection function. Refer to page 40.
 Heating peak-cut control. Refer to page 42.
 Freeze-up protection control. Refer to page 41.
 Defrost control. Refer to page 43.
inverter
normal heat pump
60 120
Limited during the activation of following functions
SiUS04-904
seconds
300
(R4144)
48 .
Function and Control