Daikin VRV S RXQ4/5ARV1, Service Manual

Page: 89 / 377

SiAF332111E Outline of Control (Indoor Unit)
Part 4 Functions and Control 83
3.5 Auto Draft Reducing Control (FXFSQ-AR only)
In the case where both this control is activated and auto airflow direction control (eco full
automatic control) is set, when human presence is detected, the airflow direction is
automatically set to horizontal (P0) to reduce discomfort by direct airflow.
This control works for each airflow outlet individually.
Note: This function is inoperative for the airflow outlet where an individual airflow direction is set.
3.6 Eco Full Automatic Control (FXFSQ-AR only)
This is a generic term for the setting where both fan speed and airflow direction are set to
"Auto". For detailed control contents, refer to
Automatic Airflow Rate Control and Airflow
Direction Control .
3.7 Drain Pump Control
3.7.1 Normal Operation

The float switch is ON in normal operation.
 When cooling operation starts (thermostat ON), the drain pump turns ON simultaneously.
 After the thermostat turns OFF, the drain pump continues to operate for another 5 minutes.
 The aim of residual operation after thermostat OFF is to eliminate the dew that condenses
on the indoor heat exchanger during cooling operation.
P0
P1
P2
P3
P4
Indoor u nit
AIR
Flap position
(Horizontal
v ie w )
P0 (horizontal)
When presence is detected
Absence continues for 5 mins
Airflow direction by auto airflow direction
Cooling: P0 or P1
Float s w itch
Error display
Thermostat
(r u nning)
OFF
OFF
O N
O N
O N
OFF
Drain p u mp
O N
OFF
5 min.