01.10.2018
Abbr Component
B2
Control unit (cooling demand) or command for
compressor start (release signal from the sys-
tem controller) or controller On/Off
B6
High pressure transmitter
B7
Low pressure transmitter
F1
Main fuse
F2
Compressor fuse
F3
Control circuit fuse
F4
Oil heater fuse
F5
High-pressure switch
F6
Low pressure switch
F7
Switching on delay "ECO"
F8
Oil level switch (minimum oil level), option
F9
Control thermostat "LI"
F10
Control thermostat for additional oil injection
F13
Thermal overload relay "motor" (1st part wind-
ing and star-delta)
F14
Thermal overload relay "motor" PW2
F17
Control transformer fuse
F21
Fuse of the heating element in the terminal
box
F30
Fuse of compressor protection device
H1
Signal lamp "fault SE-i1"
H2
Signal lamp "pause time"
K1
Contactor "1st part winding" (PW) or main
contactor (star-delta)
K2
Contactor "2nd part winding" (PW) or delta
contactor (star-delta)
K3
Star contactor (star-delta)
K2T
Time relay "pause time" 300 s
K3T
Time relay "part winding" 0.5 s or "star-delta"
1 s (CS.95: 1.5 .. 2 s)
K5T
Time interval relay "CR4" flashing function
on / off 10 s
M1
Compressor
Q1
Main switch
R1
Oil heater
R2
Oil temperature sensor (CS.: PTC ② or NTC
➂)
R3-8 PTC sensor in motor (CS.)
R9
Heating element for terminal box
R10
Optional temperature sensor
S1
Control switch (on/off)
S2
Fault reset "SE-i1"
CT-120-2 // PDF Download
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