BUS_910058_Scholastic Pro 90 Data Sheet

School Bus, Scholastic Pro 90, Engine-Off Pre-Conditioning, Supplemental Interior Heat, Eliminates Cold Starts

Scholastic Pro 90 Engine-Off Pre-Conditioning | Supplemental Interior Heat | Eliminating Cold Starts

Coolant Heater Features: n Auxilliary heating for school and shuttle buses of all sizes, offering up to 31,000 BTU/h (9.1 kW) of heating power n Arctic Start function provides quick pre-heat even in extremely cold temperatures n Low heater power consumption due to highly efficient design n Highest product quality with long service life n Automatic altitude adjustment up to 11,000 feet (3,350 m) n Several mounting options available n Quiet operation

Warm Weather Benefits: n Reduce DPF maintenance costs n Stops white smoke at start up n Eliminates diesel knock n Extend DPF regeneration cycles n Reduce emissions

Cold Weather Benefits: n Engine pre-heating n Idle reduction n Fuel savings

n Accelerated defrost n Reduce engine wear

Technical specifications

Scholastic Pro 90

Heating Capacity (Control range / Boost)

6,100 – 26,000 BTU/h / 31,000 BTU/h (1.8 – 7.6 kW / 9.1 kW)

Fuel Consumption (Control range / Boost)

0.05 – 0.23 gal/h / 0.29 gal/h (0.2 – 0.9 l/h / 1.1 l/h)

Fuels (Suitability for special fuels)

JP8, Diesel 1, Diesel 2, Arctic, Biodiesel (PME)

Rated Voltage

12 V

Power Consumption (Part load - full load / Boost)

37 – 83 W / 90 W

Operational Temperature Range

- 40° to +176° F (- 40° to +80° C)

Dimensions (L x W x H)

15 x 5.5 x 9.13 in (381 x 140 x 232 mm)


10.8 lbs (4.9 kg)

Technical specifications for circulating pump (attached to heater) U4840 Coolant Flow

3 gal/min (700 l/h)

Dimensions (L x W x H)

7.1 x 2.9 x 4.4 in (180 x 74 x 112 mm) including connectors


1.5 lbs (0.7 kg)

Available Scholastic Pro 90 Heater Kit: Scholastic Pro 90 Compact Kit w/ SmarTemp Control 3.0 (12 V) - P/N: 5013917

Standard Kit Contents: n Heater w/ Mounting Bracket n Electrical Harness n Fuel System n Exhaust System n Installation Accessories

n SmarTemp 3.0 n Literature Pack


SmarTemp Control 3.0: Part Number 5013873 n Same unit controls air or coolant heater n Programmable run times (Timers) n Adjustable Low Voltage Disconnect (LVD) n Preventive maintenance reminder n Heater fault codes displayed

Webasto Thermo & Comfort North America, Inc. 15083 North Road Fenton, Michigan 48430 USA Toll Free: 800-860-7866 Phone: 810-593-6000 webasto-comfort.com

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