Cooling system overview
Cooling systems
71
Introduction of smart fortwo electric drive (3rd Generation) • Model Series 451
Cooling system with code (V03) Battery cooling system
P20.00-2437-00
Coolant/refrigerant circuit (schematic)
A9/6 Electric refrigerant compressor
G5 High-voltage battery
M4/2 Coolant fan motor
M5 Electric drive motor
M43/1 Coolant pump 1 (feed)
M43/3 Coolant pump 2 (return)
M46 Electric drive and on-board charger coolant
pump
N83 On-board charger 3kW
N83/10 On-board charger 22 kW
(with code (908) 22 kW on-board charger)
N129/1 Power electronics control unit
R101 High-voltage battery heater
Y19/1 Electric expansion valve (interior)
Y19/3 Electric expansion valve (battery)
Y133/1 Drive system coolant pump switchover valve
Y133/2 High-voltage battery coolant pump
switchover valve
1 Expansion reservoir
2Condenser
3Cooler
4Evaporator
5 Chiller
a Coolant circuit
b Refrigerant circuit
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