DOC P/N 5001274A KIT P/N 5001273A Printed in USA Webasto Product N.A., Inc.
BlueHeat Coolant Heater
Thermo Top
Legend
1 Fuse Holder, Relays and Resistor Assembly
2Timer Control
3BlueHeat Coolant Heater, Exhaust Tube, and Combustion Air Intake Silencer
4Fuel Pump
Special Tools
– Hose Clamping pliers
– Torque Wrench
Table of Contents
1
2
4
3
GMC Sierra 2500 HD
GMC Sierra 3500 HD
6.6 Liter Duramax Diesel
Beginning Model Year: 2000
Chevrolet Silverado 2500 HD
Chevrolet Silverado 3500 HD
6.6 Liter Duramax Diesel
Beginning Model Year: 2000
Special instructions for these models
Part locations may differ slightly dependent on
the vehicle model.
Foreword
Parts List 3
Vehicle Information 3
Scope and Purpose 3
Symbol Identification 4
General References 5
Preparation 5
Heater Installation Site 5
Installation
Electrical - Overview 6
Electrical Harness 7
Timer Installation 7
Fuse Tap Connection - Relay K-1 8
Integration into the Blower System 8
3-Relay HVAC Harness Connections 9
Heater Preparation 11
Heater Installation Site Preparation 12
Heater Installation (Underbody Mount) 13
Exhaust Installation 13
Combustion Air Intake Installation 13
Integration into the Coolant System 14
Integration into the Fuel System 16
Fuel Pump Installation 16
Fuel Line Routing 16
Standpipe Installation - 2000 Through 2003 18
Standpipe Installation - 2004/2006 Model Year 20
Fuel Line Routing from Sender to Pump 22
Power Connection 23
Final Inspection, Initial Start-up and Concluding
Work 24
Heater Lockout Reset Procedure 25
Electrical Harness Schematic - Part 1 26
Electrical Harness Schematic - Part 2 27
Heater Plumbing Schematic - Inline Method 28
To Next Page
Need help?
General
