Thermo King SR-2 SmartReefer2 - Block Diagram

Section 2 – SR-2 Hardware Description
BLOCK DIAGRAM
REMOTE CONTROL
OPTION
SR2 HMI Control Panel
HMI Software
Keypad
Display
Cargo Watch Logger
Setpoint Buzzer
SR2
INTERFACE BOARD
Fuses
F1 HPCO
F2 Unit Enable Switch
F3 Fuel Pull-In and Starter
Sol
F5 Intake Heater/Glow Plugs
F6 High Speed and Damper
F7 CAN Bus
F8 CAN J12
F9 CAN J14
F10 HMI Bypass
F11 Electric Clutch
F12 CAN J13
F13 Remote Lights/Options
F15 On/Off Relay
F20 Alternator Sense
Cold Start Jumper
Board Mount Relays
LED Indicators
Preheat Buzzer
Smart FETs
SR2
MICROPROCESSOR
Microprocessor Software
Inputs
Outputs
Service Watch Logger
SENSORS
Control Return AIr Sensor
Display Return Air Sensor
Control Discharge Air Sensor
Display Discharge Air Sensor
Evaporator Coil Temp Sensor
Ambient Air Sensor
Spare Sensor 1
Coolant Temp Sensor
Suction Pressure Sensor
Discharge Pressure Sensor
Fuel Level Sensor
Compressor Temp Sensor
ELECTRIC STANDBY
OPTION
Phase Select Module
Motor Contactor "A"
Motor Contactor "B"
Overload Relay
Electric Motor
Heater Contactor
Electric Heater
CONTROL DEVICES
Intake Heater/Glow Plugs
High Speed Solenoid
Fuel Solenoid Pull-In
Fuel Solenoid Hold
Starter Solenoid
Starter
Alternator
High Pressure Cutout Switch
Pilot Solenoid
Hot Gas Solenoid
Damper Solenoid
Damper Gear Motor/Heater
Loader #1
Loader #2
Liquid Line Solenoid
Liquid Injection Valve
Water Valve
uP ON/OFF SWITCH
ServiceWatch
CONNECTOR
ETV
SWITCHES
Coolant Level Switch
Oil Level Switch
Oil Pressure Switch
Door Switch (Option)
Fuel Pressure Switch (Rail)
Fuel Level Switch (Rail)
HPCI Switch
REMOTE LIGHT
OPTION
CargoWatch
CONNECTOR
PRINTER CONNECTOR
02 January 2005
Not all devices
shown here are
used on all
applications
2-3
31 January 2005