TCL TCC-09C2HRH/DV, Руководство по обслуживанию, Страница: 13 / 75

TCL Air Conditioner Service Manual
13
When AC unit working to:
a.
t1≥t2, or
b.
t3≤t1
＜
t2.
and also the temperature (related to OAT & OPT) tested 3 min continuously meets for defrosting.
1)
Defrosting start up : Compressor stops working, and re-starts to working after 50s delay;
2) Conditions for quitting defrosting
a.
After defrosting 60s, and OAT≥12
℃
; or
b.
OAT
＜－
5
℃
, and OPT ≥8
℃
for 80s continuously; or
c.
The defrosting for 10 min.
When AC meet any of condition a, b or c, defrosting finish.
COMPRESSOR
ON
OUTDOOR FAN
4-way VALVE
OFF
50S
50S
43S
48S
Defrosting max time
43s
3)
Defrosting end off : Compressor stops working, and re-starts to working after 50s delay;
7. Cold air prevention:
This function intends to prevent cold air from being discharged when the heating operation starts up
1). IDU fan motor cold air prevention
①
.When RT
＜
24
℃
:
a. If ITP
＞
31
℃
while compressor works for 5 min, fan motor will work according to preset fan speed.
b. If IPT
≤31
℃
, fan motor stops working while compressor operation within 2min, if IPT
≥27
℃
, fan motor
works in low speed 2 min, then change to preset speed.
②
When RT
≥24
℃
:
a. Within 2 min after compressor start up working, once IPT
＞
27
℃
, fan motor will change to preset
speed.
b. After compressor starts working 2 min, fan motor change to preset speed directly.
2). Vane blade operation for cold air prevention.
a.
If the vane works on status of non-swing : While IPT increase to a special degree, the vane blade will
change the position to:
①
Default angle; or
②
Previous position; or
③
Customer preset.
The above operation can work one time only, when compressor stops working, the unit will once again
inspect the function.
b.
If the vane works on swing : When IDU quits from cold air prevention, vane operate as preset.
8. “8
℃
” Heating
When function effective, it will make sure the room temperature not lower than 8 ℃ , unit works on heating
mode.
5.2.5 Fan mode
1. The temperature setting: 16~31
℃
,
Fan speed and vane position: as preset. The function for remote controller 58E only.
2. For above function, when unit preset to be auto fan mode, the fan motor will change its operation
speed based on the temperature difference of ambient and preset temperature.