Haier AB25S2SC1FA, Service Manual

Page: 136 / 182

134
Quit condition of oil return:
1 minute later after oil return is over
＆
Td
‐
Tcm
＞
30
℃
OR OR Ts
‐
Tc
＞
30
℃
Tc
＜ ‐
35
℃
Max. 10 minutes
Oil return procedure in heating mode:
Quit condition of oil return
Max. 9 minutes
（
E
）
OR OR Td
‐
Tcm
＜
20
℃
for 30s
（
5 minutes later, begin to count
）
＆
T s
‐
Tc
＜
15
℃
for 30 S
（
5 minutes later, begin to count
）
Running for min. 5 minutes
（
E
）
Send oil return signal oil return beginning oil return over
Inverter compressor indicated FQY 60s oil return frequency 120s
Soft startup
0HZ
0HZ
5s
outdoor motor auto auto
auto
（
TC control
）
4-way valve ON
OFF
15s
450pulse 450 pulse
300pulse
（
E
）
PMV auto open angel auto open angle
all indoor motor ON
OFF anti-freeze startup