-
341
-
'13 • PAC-T-197
(5) Defrosting
(a) Defrosting start conditions
If all of the following defrosting conditions A or conditions
B are met, the defrosting operation starts.
(i) Defrosting conditions A
1) Cumulative compressor operation time after the
end of defrosting has elapsed 37 [45] minutes,
and the cumulative compressor operation time
after the start of heating operation (remote
control ON) has elapsed 30 minutes.
2) After 5 minutes from the compressor ON
3) After 5 minutes from the start of outdoor unit fan
4) After satisfying all above conditions, if temperatures
of the outdoor unit heat exchanger temperature
thermistor (Tho-R1, R2) and the outdoor air
temperature thermistor (Tho-A) become lower
than the defrosting start temperature as shown
by the right figure for 15 seconds continuously,
or the suction gas saturation temperature (SST)
and the outdoor air temperature (Tho-A), which
are obtained from the value detected by the
low pressure sensor (LPT) stay for 3 minutes
within the range below the defrosting operation
start temperature as shown by the right figure.
However, it excludes for 10 minutes after the start
of compressor and the outdoor air temperature is
as shown by the lower figure.
LPT detection
Outdoor air temp. (°C)
2
4
LPT invalid
Note (1) Figures in [ ] is for model 71.
(ii) Defrosting conditions B
1) When previous defrosting end condition is
the time out of defrosting operation and it is
in the heating operation after the cumulative
compressor operation time after the end of
defrosting has become 30 minutes.
2) After 5 minutes from the start of compressor
3) After 5 minutes from the start of outdoor unit fan
(b) Defrosting end conditions
When any of the following conditions is satisfied, the
defrosting end operation starts.
(i) When it has elapsed 8 minutes and 20 seconds after the start of defrosting. (After 10 minutes and 20 seconds for
model 71)
(ii) When the outdoor unit heat exchanger temperatures (Tho-R1, R2), whichever the lower, becomes 12°C (model 71: 16°C)
or higher for 10 seconds continuously.
Outdoor air temp.
(
℃
)
［
Tho-A
］
Outdoor air temp.
(
℃
)
［
Tho-A
］
Suction saturatio
n temp.
(
℃
)
［
SST
］
Suction saturatio
n temp.
(
℃
)
［
SST
］
-20
-25
-28.6
-30
-24
-15
-10
-8
-15
-10
-5
0
5 6
10
-20
-25
Defrost ope
ration star
t temperature (Standard)
Defrost oper
ation st
art temperat
ure (S
W3-1 ON
)
-20
-25
-30
-31
-24
-15
-10
-8
-35
-15
-18
-10
-5
0
5 6
10
-25
-20
-18
Defrost
operation start temperature
(SW3-1 ON)
Defrost oper
ation start
temperature
(Standard
)
Defrost operation start
temperature zone
Defrost operation start
temperature zone
Model 71
Model 100-140
Outdoor air temp. (
℃
)
［
Tho-A
］
-20
-25
-27
-30
-15
-10
-5
-6
-2
-15
-10
-5
0
5 6
10
-20
-25
Defrost operation start
temperature zone
Defrost
operation start tem
perature
(Standa
rd)
Defrost operation start
tem
perature (SW
3-1
ON
)
Outdoor unit heat exchanger temp.
(
℃
)
［
Tho-
R
］
-18
Model 71-140
Summary of Contents for V Multi 100VNX
Page 98: ... 97 13 PAC T 197 Models FDT100VF1 125VF 140VF H H H H H C B A F G D G PJF000Z285 A ...
Page 101: ... 100 13 PAC T 197 Models FDEN60VF 71VF1 C2 C1 A B A B D C1 C2 C1 C2 E G F C PFA003Z817 ...
Page 116: ... 115 13 PAC T 197 b Wireless remote control RCN E1R 60 17 150 Unit mm ...
Page 291: ... 290 13 PAC T 197 261 12 PAC T 173 ー K ...
Page 590: ... 589 13 PAC T 197 3 8 SUPER LINK E BOARD SC ADNA E F ...
Page 591: ... 590 13 PAC T 197 ...
