With Optional Infrared Presence/Floor Sensor - Daikin SkyAir RZR-TA Series Service Manual

SiUS281811EA
Symptom
16 The outdoor After stopping operation
unit compressor
or the outdoor
fan does not
stop.
17 The outdoor While stopping operation
unit gets hot.
18 The system The system is in dry
does not cool operation.
air well.
2.2

With Optional Infrared Presence/Floor Sensor

"Louver operation different from setting" or "No downward
1
airflow in heating operation"
Individual airflow direction setting different from the actual
2
airflow direction
3 When in stop mode, 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
cause other louvers to turn downward (P4).
7
8 When using airflow block, the airflow block will be routinely
lifted (become horizontal) during heating operation.
Although people are not present, the infrared presence sensor
detects human presence.
9
Although people are present, the infrared presence sensor fails
to determine their presence.
10
Large difference between floor temperature and actual
temperature
11
Part 6 Service Diagnosis
Supposed Cause
It stops in order to prevent oil or
refrigerant from dwelling.
The reason is that the
compressor is warmed up to
provide smooth startup of the
system.
The reason is that the dry
operation serves not to reduce
the room temperature where
possible.
Problem
Countermeasure
Normal operation.
It stops after a lapse of
approximately 5 to 10 minutes.
Normal operation.
Change the system to cooling
operation.
Measure
Refer to the flowchart below.
· Check the "Louver operation different from setting" error
diagnosis.
Turn off the circuit breaker and then turn it on again.
Please check "Infrared presence/infrared floor sensor error
(CE)" in troubleshooting.
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 outside 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.
Symptom-based Troubleshooting
203