Haier HSU-18,22HVA103/R2(DB) Service Manual page 22

5．1．1．4 Select the wind volume when it is set automatic
When the wind volume is automatic, it can be switched between strong, medium and weak according
to the temperature adjusting levels.
Wind volume under the automatic wind volume mode
A
Heating
Strong
cooling
Moisture
removing
5．1．1．5 Wind volume limit
When the compressor is working and the max setting for indoor fan motor is medium or weak, the
upper limit of indicated frequency is as follows:
Frequency control form for wind volume
Medium wind volume
Weak wind volume
Limited frequency for
up/down health wind
5．1．2 Main functions
5．1．2．1 Warm boot
When the heat running starts or the frost removing ends and the compressor starts again, in order to
avoid cold wind, warm boot wind volume control should be done.
Heat exchange temperature
THHOT3（38℃）
THHOT2（35.2℃）
THHOT1（28℃）
THHOTR（20℃）
Stop
To control the indoor fan motor as shown in the table above according to the heat exchange
temperature
The fan motor stops when the heat exchange temperature is below 28℃
18 2 HVA103/R2(DB)
Temperature adjusting levels
B C D
Strong Strong Strong
Strong Strong Strong
Strong Medium Medium
Limited frequency
variables
FQLIMMD
FQLIMLO
FUPHEAL
4 minutes
slightly
weak
weak
21
E F G
Strong Medium Weak
Medium Medium Weak
Medium Weak Weak
Limited frequency
80Hz
52Hz
40Hz
setting weak
H I
Weak SLO
Weak Weak
SLO SLO
slightly
stop
weak