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342 N. Co. Rd. 400 East Valparaiso, IN 46383 219-464-8818 • Fax 219-462-7985 www.heatwagon.com Installation and Maintenance Manual Please retain this manual for future reference. DG250/DG400 Ductable Construction Heater For your safety: Do not use this heater in a space where gasoline or other liquids having flammable vapors are stored.
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All manuals and user guides at all-guides.com TAB 1 NOTE Temp Rise 170º 180º Recommended Duct WD1625HT5 WD2025HT5 Duct Adaptor AR250 AR400 Thermostat (confirm correct thermostat with serial number p.10-11) DIGTHIDF-5 DIGTHIDF-5 DIGTHIDF DIGTHIDF...
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All manuals and user guides at all-guides.com pg.4 pg.4 pg.9 meeting electrical requirements. Tab 1, pg. 4 NOTE: Max incoming gas pressure is 1/2 PSI (14” W.C.) recommend installation of install kit. Part# INSTKIT (optional) See page 16.
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All manuals and user guides at all-guides.com Fig. 3 Pg. 8 Fig. 4 again tested and set-up set-up will it Pg. 8...
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All manuals and user guides at all-guides.com • Stop the machine as indicated in HEATING MODE section (Turning OFF) Note: Jumper plug must be installed. is operated with (DIGTHIDF) thermostat page 9 and find the cause. • Stop the machine as indicated in HEATING MODE section (Turning OFF) DO NOT UNPLUG TO STOP HEATER! Pg.
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All manuals and user guides at all-guides.com " " " " #)63 ;1B16/ +0):< 76 8)/- (see Heating Mode, Page 7) (see Heating Mode, Page 7) (Reverse Polarity) Note: To measure manifold pressure use gas pressure test set Part #G24507...
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All manuals and user guides at all-guides.com • The heater fails to start/ignite • Faulty operation of room thermostat Connect thermostat (optional) or blind plug to (Confirm “H” Mode) thermostat receptacle. Unit will not run without one of these items plugged into receptacle. •...
All manuals and user guides at all-guides.com Wiring Diagram For model DG250, starting from SN 43300101 For model DG400, starting from SN 43400201 Note: 5 pin thermostat plug P/N - BIE E10325...
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All manuals and user guides at all-guides.com Wiring Diagram For model DG250, prior to SN 43303001 For model DG400, prior to SN 43403001 Note: 4 pin thermostat plug P/N - E10325...
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All manuals and user guides at all-guides.com OBSOLETE DG250 Parts Breakdown...
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All manuals and user guides at all-guides.com DG250 Parts List DESCRIPTION DESCRIPTION BIE G03146-9005 Outlet cone BIE E10110-1-P Switch BIE M10203/1/B Screw BIE E20639 Plug housing - 5 pin, female BIE G03113 Front disc BIE E20640 Plug housing - 4 pin, female...
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All manuals and user guides at all-guides.com DG400 Parts Breakdown...
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All manuals and user guides at all-guides.com DG400 Parts List POS P/N DESCRIPTION POS P/N DESCRIPTION BIE G06139-9005 Outlet cone BIE G06073 Support plate BIE M10203/1/B Screw BIE E20418 Stop button protection BIE G03114 Front disc BIE E10110-1-P Switch BIE G03147 Combustion chamber BIE E20639 Plug housing - 5 pin female...
W.C. 0-15” Handles up to 60 psi and Propane For NG pressure 1/4” MNPT Female Swivel Fittings 1-5 lbs. Call Heat Wagon Included ACC-INSTKIT Everything you need for installation of propane tank to heater. (Includes 25’ of 3/4” hose) Duct and Thermostat Information...
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