Outdoor Fan Running Rules; Indoor Fan Running Rules - Carrier 38LUVH025N-1 Service Manual

G: Decrease the frequency to the lower level until to F1.
H: Run at F1 for 1h.(if T1-Ts<-2℃, the compressor will stop)
Meanwhile, the compressor running frequency is limited by the current.
Off
I3COOL
Decrease
I2COOL
Hold
I1COOL
Resume
Off: Compressor stops.
Decrease: Decrease the running frequency to the lower level.
Hold: Keep the current frequency.
Resume: No limitation for frequency.
Note:
When AC is in "hold" zone for 3 minutes, the compressor frequency will rise to the higher
level.(frequency will increase twice at most)

3.2.2 Outdoor fan running rules

High
22
20
Low

3.2.3 Indoor fan running rules

In cooling mode, indoor fan runs all the time and the speed can be selected as high, medium, low and
auto.
Auto fan in cooling mode acts as follow:
PART6, 4