12-2
CONTROL SYSTEM
SM XLFDCI 1-A.1 GB
NLOAD
Target Frequency
127
Maximum Frequency
10<NLOAD<127
Interpolated value between minimum and maximum frequency
10
Minimum frequency
0
Compressor is sXLFped
Target frequency limits as a function of outdoor air temperature (OAT):
OAT Range
Cooling Mode limits
Heating Mode limits
OAT < 6
MaxFreqAsOATC
No limit
6
≤
OAT < 15
MaxFreqAsOAT1H
15
≤
OAT<28
MaxFreqAsOAT2H
28
≤
OAT
No limit
Frequency Changes Control
When the unit is running normally , the compressor frequency change rate is 1 Hz/sec.
Compressor Starting Control
Compressor starting control for GC 9 / 12
Minimum On and Off Time
3 minutes
Indoor Fan Control
8 Indoor fan speeds are determined for each model. 4 speeds for cool/dry/fan modes and 4 speeds
for heat mode.
When user sets the indoor fan speed to a fixed speed (Low/ Medium/ High), unit will operate constantly
at set speed.
When Auto Fan is selected, indoor unit controller can operate in all speeds. The actual speed is set
according to the cool/heat load.
Time
Step1
Step2
Step3
Min 10 Minutes
1
Minute
1
Minute
CONTENTS
