exchanger and make defrosting control.
3.5.1 Enter condition:
After the unit is in heating for 10 minutes and compressor run for 45 minutes in all , according
to check the defrosting temp. sensor Te and outdoor ambient temp. sensor Tao, if they can
meet the following condition, entering in defrosting operation.
1
、
5
℃
（
E
）
<Tao
，
Te<=-6
℃
（
E
）；
2
、
-6
℃
（
E
）
<=Tao<=5
℃
，
Te
≤
C×Tao
－
α
；
Herein
：
α
=8
（
E
）
;C
：
Tao
＜
0
℃
，
C=0.8; Tao
≥
0
℃
，
C=0.6
3.Tao<-6
℃
，
Te
≤
-15
℃
（
E
）
and defrosting compressor run for 48 minutes in all
。
3.5.2 Cancel condition:
It will take max. 10minutew from beginning defrosting to quit it. Te sensor will measure the
condition of outdoor heat exchanger, if the temp. is over 10
℃
for 60s or is up to 14
℃
for 30s,
the defrosting will be over.
3.5.3 Defrosting operation flow chart:
Beginning
End
60s
60s
30s
inverter compressor indicated FQY
defrosting FQY 85 Hz
（
E
）
soft startup
50HZ
32HZ
10s
outdoor fan motor ON
send signal to indoor unit
auto
OFF
4-way valve ON
OFF
ON
Unload valve SV1 OFF
auto
250pulse
（
E
）
PMV auto open angle
auto open angle
Indoor fan motor ON
OFF
anti-cold air function
>_]]VbTZR\ <Zb >_^UZdZ_^Vb
36
Summary of Contents for YUDA060
Page 1: ...SERVICE MANUAL YUDA060 CAD060 Outdoor unit YUDA060 Indoor unit CAD060...
Page 7: ..._ VbTZR Zb _ UZdZ_ Vb 3 Dimension 580 25 1250 948 380 340 YUDA060 7...
Page 16: ...Name of Parts _ VbTZR Zb _ UZdZ_ Vb Air inlet Air outlet Compressor Inside of unit YUDA060 16...
Page 18: ...3 Installation dimension Unit mm _ VbTZR Zb _ UZdZ_ Vb 580 25 1250 948 380 340 YUDA060 18...
Page 40: ..._ VbTZR Zb _ UZdZ_ Vb 5 2 Indoor unit 5 2 1 PCB for indoor unit 40...
Page 59: ..._ VbTZR Zb _ UZdZ_ Vb 59...
Page 63: ..._ VbTZR Zb _ UZdZ_ Vb 63...
Page 64: ..._ VbTZR Zb _ UZdZ_ Vb wIWXb ST WPb c cWXb Ud RcX x 64...
