GB
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Page 23 GB
9.3
Right reserved to make technical changes!
9.3 Electrical circuit diagram for
CT 3000 and FT 1500
2
2
RxD
RxD
SG
SG
TxD
TxD
+12V
3
3
5
5
9
F2
80mA Tr
R1
K3
K1
K2
K5
R9
R8
R11
R10
KM
KM
E6
79
A1
A2
46
GND
RF
VD
VF
PE-P
ro
file
Netfilt
er
P
o
w
er supply plug
C
o
mpr
essor
4 -pin plug f
o
r
co
ld
ro
o
m
E
v
apotat
or fan
E
v
apor
at
or
fanr 2
fo
r housing siz
e
2
C
o
ndenser fan
P
ressostat
C
o
mpr
e
ssor
Oil heat
e
r
D
e
fr
ost heating
Ex
te
rnal fault in dicat
o
r
(in cas e of fault or if
without po
w
e
r
re
la
y is r
e
leased)
Room sensor
Ev
a
p
o
rato
r
sensor
Te
mper
atur
e sensors
PT 1000
C
o
ndenser sensor
(optional)
C
o
nnec
ting schematics f
or the optional
serial in t
e
rfac
e RS 232 ,
included in syst
ems supplied with
re
m
o
te
co
nt
ro
l
