W
EBASTO
S
CHOLASTIC
S
ERIES
TABLE OF CONTENTS
III
List of Figures
2-1 Webasto Scholastic Series Heater ......................................... 2-1
3-1 7-Day Digital Timer – Typical ............................................. 3-3
4-1 Scholastic Series Heater Dimensions (Millimeters) ............................. 4-2
4-2 Coolant Circulating Pump Assembly (P.N. 906017) Dimensions (Inches) ............ 4-3
4-3 Tray Mount Dimensions (Inches) .......................................... 4-4
5-1 Installation Locations ................................................... 5-1
5-2 Tray Mount Template (Supplied with Heater Kit) ............................... 5-2
5-3 Typical School Bus Heating Circuit ........................................ 5-3
5-4 Series Plumbing Circuit - Conventional Model ................................ 5-4
5-5 Series Plumbing Circuit - Transit Model (Engine Front) ......................... 5-4
5-6 Series Plumbing Circuit - Transit Model (Engine Rear) .......................... 5-5
5-7 Fuel Standpipe Installation ............................................... 5-7
5-8 Fuel Line Parameters .................................................. 5-8
5-9 Harness Connection Points ..............................................5-10
5-10 On/Off Switch ........................................................5-11
5-11 7-Day Digital Timer Model 1531 ...........................................5-11
5-12 Wiring Diagram - Scholastic Series Heater ..................................5-12
5-13 Wiring Diagram with Switch ..............................................5-13
5-14 Wiring Diagram with Switch ..............................................5-14
5-15 Wiring Diagram with Timer Model 1531 .....................................5-15
5-16 Wiring Diagram with Timer Model 1531 .....................................5-16
7-1 Test Unit P.N. 440280 .................................................. 7-2
List of Tables
3-1 Digital Timer Instructions ................................................ 3-4
4-1 Scholastic Series Heater Data ............................................ 4-1
4-2 Coolant Circulation Pump Data ........................................... 4-3
7-1 Quick Check Troubleshooting Matrix ....................................... 7-1
7-2 Test Procedures and Results ............................................. 7-3
