Thermo King SB-III 30 SR+, Manual

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Specifications (Rev. 04/02)
3
ELECTRICAL COMPONENTS
NOTE: Disconnect components from unit circuit to check resistance.
Current Draw (Amps) Resistance—Cold
at 12.5 Vdc (Ohms)
Fuel Solenoid: Pull-in Coil 35 to 45 0.2 to 0.3
Hold-in Coil 0.5 24 to 29
Damper Solenoid 5.7 2.2
High Speed (Throttle) Solenoid 2.9 4.3
Air Heater 89 0.14
Pilot Solenoid 0.7 17.0
Starter Motor—Gear Reduction Type 250-375*
Modulation Valve (Optional) 1.7** 7.6
Hot Gas Bypass Valve (Optional) 1.1 11.1
* On-the-engine cranking check. Bench test is approximately 80 amps on the gear reduction starter.
** Test at 12.5 Vdc.
THERMOGUARD
®
µP-V MICROPROCESSOR TEMPERATURE CONTROLLER
Temperature Controller:
Type Electronic THERMOGUARD µP-V Microprocessor with digital
thermostat, thermometer and fault indicator monitor
Setpoint Range -20 to 80 F (-29 to 27 C)
Programmable setpoint range to 90 F (32 C)
Digital Temperature Display -40 to 99.9 F (-40 to 40 C)
Internal Defrost Timer:
Temperature Pulldown 2, 4, 6, 8 or 12 hours (selectable, standard setting 4)
Temperature In-range 4, 6, 8 or 12 hours (selectable, standard setting 6)
Defrost Initiation: Coil Sensor Coil must be below 45 F (7.2 C)
Defrost Termination: Coil Sensor Terminates defrost with coil temperature above 57 F (13.9 C)
Interval Timer Terminates defrost 30 to 45 minutes (programmable) after initiation if
coil sensor has not terminated defrost