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Valparaiso, IN 46383 219-464-8818 • Fax 219-462-7985 www.heatwagon.com Installation and Maintenance Manual Please retain this manual for future reference. 4200 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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If you need assistance or heater information such as an instruction manual, labels, etc., contact your local Heat Wagon dealer or the manufacturer. Fire, burn, inhalation, and explosion hazard. Keep solid combustibles, such as build- ing materials, paper or cardboard, a safe distance away from the heater as recom- mended by the instructions.
Wiring Diagrams .........14-19 WARRANTY All new Heat Wagon and Sure Flame heaters and fans are guaranteed against defective materials and work- manship for one (1) year from invoice date.
INSTALLATION The Heat Wagon Model 4200 Series is a direct fired gas heater intended to be used primarily for the temporary heating of building under construction, alteration, or repair. Since all the products of combustion are released into the area being heated, it is imperative that adequate ventilation is pro- vided.
PROPER SET UP (NOTE: The 4200 Series must be specifically set up for the type of available fuel PRIOR to installation) Model 4200 Series with built-in vaporizer. The heater will use 55-77 gallon of L.P. per hour. Use at least two 1000 gal.
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For your safety do not use this heater in a space where gasoline or other liquids, having flammable vapors, are stored or used. It is best to provide outside clean air to heater inlet and adequate ventilation to heated areas. The hose assembly shall be protected from traffic, damage, building materials and contact with hot sur- faces.
This provides a slight pressurization and prevents any problems associated with recirculation of products of combustion. OPERATING INSTRUCTIONS Model 4200 Series 1. Turn on fuel supply 2. Turn on the manual shut off valve 3. Turn on the fan switches 4.
MODEL 4200 SERIES SEQUENCE OF COMPONENT OPERATION POWER SUPPLY 240/480 Volt wire directly into the fused disconnect. FUSE DISCONNECT SWITCH Turned on, it sends power to motor relay and to control voltage transformer. CONTROL VOLTAGE TRANSFORMER Sends power to the 3 amp circuit breaker.
TROUBLE SHOOTING NOTE: MUST CHECK COMPONENTS IN SEQUENCE LISTED DIRECTIONS: Find the specific symptom. Refer to Sequence of component Operation Guide. Check the components listed with a voltmeter for proper operation as described. Replace any com- ponents not operating correctly. Fan will not start when fan switch and thermostat are ON.
PREVENTATIVE MAINTENANCE 1) Check - Fused disconnect A) Continuity through fuses. 2) Check - All wiring for tight and correct connections 3) Check - Motor Relay A) If it buzzes, clean contacts or replace. B) Check for voltage drop through L1 & T1 contacts. If it’s more than 2 volt replace. 4) Check - Air Flow Switch A) Clean inlet and negative pressure tubes (Blow out with air) B) Adjust the switch, turn adjusting screw CCW until the light on the control panel stays on.
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PROPANE FACTS LBS Per Gallon 4.24 BTU Per Gallon 91,960 BTU Per LB 21,591 BTU Per Cu Ft 2,516 Cubic feet of air Required to burn 1 Cu Ft propane 23.5 NATURAL GAS FACTS BTU Per Cu Ft 1040 100,000 BTU = THERM 1 THERM = 100 Cubic Foot Cu Ft of air required to burn 1 Cu Ft of Natural Gas 10.5...
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