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SiEN18-622
Protection Control
Function
109
4.3
Discharge Pipe Protection Control
This discharge pipe protection control is used to protect the compressor internal temperature
against a malfunction or transient increase of discharge pipe temperature.
[INV compressor]
In di
s
ch
a
rge pipe temp.
protection control
HTdi>115°C
Tp>1
3
5°C
HTdi :
Tp :
or
INV
u
pper limit fre
qu
ency:
3
6 Hz Unlo
a
d
HTdi>115°C
Tp>1
3
5°C
or
HTdi>1
3
5°C
HTdi>120°C for 10 min. or more.
or
HTdi<110°C
Tp<125°C
&
After
3
0
s
ec.
After 20
s
ec.
HTdi>1
3
0°C
HTdi>120°C
or
HTdi<100°C
Tp<110°C
&
Di
s
ch
a
rge pipe
temper
a
t
u
re
s
t
a
nd
b
y
V
a
l
u
e of INV compre
ss
or di
s
ch
a
rge pipe
temper
a
t
u
re (Tdi) compen
sa
ted with
o
u
tdoor
a
ir temper
a
t
u
re
V
a
l
u
e of compre
ss
or port temper
a
t
u
re
c
a
lc
u
l
a
ted
b
y Tc
a
nd Te,
a
nd
su
ction
su
perhe
a
ted degree.
INV
u
pper limit fre
qu
ency: 1-
s
tep
u
p
from c
u
rrent compre
ss
or fre
qu
ency
Di
s
ch
a
rge pipe protection
control not limited
1-
s
tep down from c
u
rrent
compre
ss
or fre
qu
ency
for 90
s
ec.
or more.
When occ
u
rring
3
time
s
within 100 min
u
te
s
,
the m
a
lf
u
nction code “F
3
” i
s
o
u
tp
u
t.
Summary of Contents for FTKS50BVMB
Page 1: ...SiEN18 622 E Series Service Manual Applied Models zSuper Multi Plus Cooling Only Heat Pump ...
Page 105: ...Refrigerant Flow for Each Operation Mode SiEN18 622 92 Refrigerant Circuit ...
Page 157: ...Indoor Unit SkyAir Models SiEN18 622 144 Function ...
Page 312: ...SiEN18 622 Ceiling Mounted Cassette Type System Configuration 300 ...
Page 424: ...Method of Replacing The Inverter s Power Transistors Modules SiEN18 622 412 Troubleshooting ...
Page 446: ...Wiring Diagrams SiEN18 622 434 Appendix ...
Page 452: ...SiEN18 622 vi Index ...