KT-230-2
16
7.6
Legend for the schematic wiring diagrams
Ab-
brev.
Component
B1
Command for compressor start-up (release
signal from system controller)
B6
High-pressure transmitter
B7
Low-pressure transmitter
F1
Main fuse
F2
Compressor fuse
F3
Control fuse
F4
Oil monitoring: OLC-D1 or DP-1
F5
High-pressure switches
F13
Motor overload protective device (1st part
winding and Y/Δ)
F14
Motor overload protective device (2nd part
winding)
F17
Control transformer fuse
F30
Fuse of compressor module
H3
"Collective fault" light
K1
Contactor for 1st part winding (PW) or main
contactor (Y/Δ)
K2
Contactor for 2nd part winding" (PW) or delta
contactor (Y/Δ)
K3
Star contactor (Y/Δ)
K10
''Compressor running" auxiliary relay, poten-
tial-free contact
K11
''Compressor release'' auxiliary relay
M1
Compressor
M2
Auxiliary fan
N1
Frequency inverter (FI)
Q1
Main switch
R1 ..
R6
Temperature sensors in motor winding
R7
Discharge gas temperature sensor
R8
Oil heater
S1
Control switch (on/off)
S2
CM-RC-01 reset
T1
Control transformer (example for 230 V)
Y1
"Start unloading (SU)" solenoid valve
Y3-1
Solenoid valve for "1st capacity regulator
CRII"
Y3-2
Solenoid valve for "2nd capacity regulator
CRII"
Y3-3
Solenoid valve for "3rd Power regulator
CRII" (only for 6-cylinder compressors)
Ab-
brev.
Component
Y5
RI injection valve
Tab. 3: Components of the principle circuit diagrams
