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
107
Summary of Contents for YHDJXH012BAM--GX
Page 34: ...Model W D H L1 L2 L3 YHUJYH024BAR A X 860 308 730 633 113 5 340 YHUJYH024BAR A X 34...
Page 36: ...YHFJZH012BAM AFX YHFJZH018BAM AFX YHFJZH024BAR AFX 3 33 100 22 1 1 0 1 0 0 33 36...
Page 93: ...YHUJYH024BAR A X power module YHUJYH028 36BAR A X power module 93...
Page 96: ...YHUJYH048BAR A X filter board YHUJYH048BAR A X power module 96...
Page 111: ...5 2 Indoor unit 5 2 1 PCB 0151800106 for 28 36 48 60 indoor unit 111 YHDJXH018BAM GX...
Page 151: ...151...