Danfoss Turbocor TT Series

Page 21 of 108
M-AP-001-EN Rev. N
Functional Description
Figure 3-3 - Compressor
Cooling Circuit (TG230 /
TT300)
Figure 3-4 - Compressor
Cooling Circuit (TT300
Split-Cooling, TG310, TT350,
TG390, TT400, and TG520)
BMCC
From Motor
Cavit y Tem p .
Sensor
From Motor
Wi n di ng Tem p.
Sensor
Motor/Rotor
cooli ng gas a nd
leakage
BMCC
From IGBT
Te mp. Sen sor
From SCR
Te mp. Sen sor
IGBT
SCR
ORIFI C E
ORIFI C E
Solenoid
B
Solenoid
A
Li q ui d
Refrigerant
Inlet
BMCC
From Motor
Cavity Temp.
Sensor
From Motor
Winding Temp.
Sensor
Motor/Rotor
cooling gas and
leakage
BMCC
From IGBT
Temp. Sensor
From SCR
Temp. Sensor
IGBT
SCR
ORIFICEORIFICE
Solenoid
B
Solenoid
A
Liquid
Refrigerant
Inlet
Cooling path
redirects outside of
the compressor
Pressure
Regula�ng
Valve
Cooling path re-enters
at the suc�on line of
the chiller
MT Only