Table of Contents:
Page
Safety & Caution . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3
Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3
Operating Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4
Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7
Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9
Illustrated Parts Breakdown . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .14-16
Wiring Diagrams . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .16-19
Exhaust Flue Pipe Guidelines . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .20
Installation and Maintenance Manual
Model VG400
Construction Heater
342 N. Co. Rd. 400 East • Valparaiso, IN 46383
219-464-8818 • 888-432-8924 • Fax 800-255-7985
www.heatwagon.com
WARRANTY
This heater is guaranteed against defective materials and workmanship for one (1) year from Heat Wagon invoice
date.
Warranty repairs may be made only by an authorized, trained and certified Heat Wagon dealer. Warranty repairs
by other entities will not be considered. Warranty claims must include model number and serial number.
Components are guaranteed to the extent of the component manufacturer’s warranty.
LIMITATIONS
Warranty claims for service parts (wear parts) such as spark plugs, igniters, and flame rods will not be allowed.
Diagnostic parts such as voltage meters and pressure gauges are not warrantable. Evidence of improper fuel usage,
fuel pressures outside of manufacturer’s specification, poor fuel quality, improper electric power, misapplication
and/or evidence of abuse may be cause for rejection of warranty claims.
Labor, travel time, mileage and shipping charges will not be allowed. Minor adjustments to heaters are the respon-
sibility of the dealer. Defective parts must be tagged and held for possible return to the factory for 60 days from
date of repair. The factory will provide a return goods authorization, (RGA) for defective parts to be returned. No
warranty will be allowed for parts not purchased from Heat Wagon.
2
