Carrier 42LUVH045N - Page 30

27
If the machine runs in rating capacity test mode, indoor fan runs with rating speed, and anti-cold-wind is
disabled.
8.7.2 Indoor fan speed can be set as high, medium, low or auto grade, but anti-cold-wind function is
preferential.
Auto fan action in heating mode.
After 7minutes start the operation frequency of compressor submits to following rule :
1)When the machine runs, if ΔTh stays in a zone for 3 minutes, action of frequency is as follow:
Zone A: Elevate current frequency one grade, and not stop until the maximum grade.
Zone B: Elevate or keep or descend current frequency.
Zone H: Compressor stops after running with F1 for 60 minutes or when ΔTh＞6℃.
2)Temperature difference (ΔTcon) choice.
After power on, the machine will self-diagnose, and if there are no J1 and J2 jump wires, ΔTcon
will be set as 0℃.
J1
on
on
off
off
J2
on
off
on
off
ΔTcon(℃)
0
-4
-2
0
.
Remark: ΔTcon can be changed among 0, -2,- 4℃, the
default is 0℃
.
A
5.
0
4.
5
1.
0
0.
5
H
B
℃
ΔTh=(room temp) – (setting Temp) –ΔTcon
ΔT=(oom temp) – (setting Temp)
mediu
m
2.
5
2.
0
1.
5
1.
0
℃
low
high