Automatic Airflow Rate Control; Drain Pump Control; Freeze-Up Prevention Control - Daikin SkyAir RZF-A Series Service Manual

SiME281906E
3.3

Automatic Airflow Rate Control

The automatic airflow rate control (Five steps from H to L) is based on the difference between
control target temperature and set temperature.
Cooling
Program Dry
Fan
Stop
3.4

Drain Pump Control

 Cooling Operation, Dry Operation
Drain pump normally ON (both during thermostat ON/OFF).
3.5

Freeze-Up Prevention Control

Based on the judgment to prevent the indoor heat exchanger from freezing, the thermostat is
forcedly turned OFF.
Part 4 Functions and Control
Thermostat ON
Thermostat OFF
Thermostat ON
Thermostat OFF
Fan tap
M
ML
L
← Difference between control target →
Small
temperature and set temperature
Indoor heat
exchanger

Freeze-up prevention control

temperature
Reset after a continuous 10 minutes and cumulative
timer cleared after a continuous 10 minutes
7ºC
Cumulative timer cleared after a continuous 20 minutes
4ºC
The thermostat turns OFF after a cumulative 40
–1ºC
–3ºC
The thermostat turns OFF after a continuous 1 minute
after 8 minutes from startup
–5ºC
When airflow rate is set
Set
LL
L
OFF
Set
OFF
<Change in airflow rate under
automatic airflow rate control>
H
HM
Large
minutes
Indoor Unit Functions
Automatic airflow rate
The fan tap is determined
by the difference between
control target temperature
and set temperature.
The fan keeps rotating at
the speed as just before
the thermostat off
L
OFF
M
OFF
52