With Infrared Presence/Floor Sensor - Daikin VRV EMERION REYQ-AATJA Service Manual

Symptom-based Troubleshooting
1.4

With Infrared Presence/Floor Sensor

Louver operation different from setting or no downward airflow
1
in heating operation
Individual airflow direction setting different from the actual
2
airflow direction
3 While not operating, the louver does not close completely.
The remote controller menu does not display energy saving
operating mode for when people are not present.
The remote controller menu does not display the stop function
4
for when people are not present.
The remote controller menu does not display the automatic draft
prevention function.
5 The menu does not display the eco-friendly display function.
During cooling and dry operation, the louver automatically
6 switches from horizontal (P0) to one-level downward (P1).
During heating operation, the use of an airflow block will not
7 cause other louvers to turn downward (P4).
8 When using airflow block, the airflow block will be routinely lifted
(become horizontal) during heating operation.
The infrared presence sensor determines that there is someone
in the room while no one is there.
9
The infrared presence sensor determines that there is no one in
the room while someone is there.
10
Large difference between floor temperature and actual
temperature
11
Error diagnosis when the louver movement differs from the setting
293
Condition
Is the individual
airflow set?
NO
Is the
airflow direction set to
automatic?
NO
Is the connection
of the step motor
connector normal?
NO
Refer to the flowchart below.
Refer to the flowchart below.
Turn off the circuit breaker and then turn it on again.
Refer to Infrared Presence/Floor Sensor Error (CE) on
page 360.
No defect.
Set the clock.
No defect.
When relative ambient humidity is higher, automatic louver
control will be activated.
No defect.
In heating operation, if an airflow block is set, then the air outlet
control outdoor the airflow block will be within the range P0-P3.
No defect.
Set louver to horizontal (P0) during thermostat OFF.
Check if there are any objects that generate temperature change
when moving.
For example:
· An electric heater with swing function
· Doors, curtains, blind switches
· Output of paper from a fax machine or a printer
· Turning on/off of incandescent lights
· Moving objects
Check for the following conditions.
· Lack of movement
· Facing away from the sensor
· Little skin exposed
· Slight movement in a place far from the sensor
Check for the following conditions.
· Sensor detection zone affected by solar radiation
· High or low temperature objects in the sensor detection zone
· Large difference between floor temperature and
temperature of the living space
· Sensors installed near walls may be affected by wall
temperature.
YES
Is the
YES
automatic draft prevention
function enabled?
NO
YES Is the wire
harness broken?
NO
SiUS372201EB
Measure
Normal
Reset (Cancel)
individual airflow.
YES
Normal
Automatic draft prevention
function switches flap to
horizontal position when
presence is detected.
YES
Replace the wire
harness.
Replace the step
motor. (Motor failure)
Connect to the connector
correctly before action
verification.
Part 6 Service Diagnosis