Heat Wagon VG1000, Installation And Maintenance Manual

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START UP (CONTINUED)
5. Turn the control switch in control box to position “1” (HEATING).
6. When the ambient temperature level is lower than thermostat setting, the burner switches
on automatically. The fan does not switch on until the set temperature (104ºF) of the heat-
exchanger has been reached (will take approximately 1-5 minutes).
7. The green indicator lamps for “heating on” and “fan on” will light up now.
8. Close the door in order to protect the unit against unauthorized adjustments.
• After startup, the heater is operated automatically by the room thermostat and governed by all
control devices, including the safety limit controls.
• The room thermostat (TSTAT) and burner sensor control the running sequences of the
burner and the fan sensor controls the fan function.
• Overheat limit reset (STB) controls and shuts off the heater (burner) in the case of overheating.
• The unit can also be used for ventilation purposes only, if needed.
1. Turn the control switch in control box to position “2” (VENTILATION).
2. The unit is now in the continuous ventilating mode.
3. Heating is not possible in this mode.
DUCTING (Warm Air)
• Minimum clearance from combustible materials is 4 inches.
• Use steel ducting or fabric ducting capable of withstanding maximum temperature of 300ºF.
• Maximum length of duct: 200’ (straight).
• Duct diameter: 20”.
• Make certain that the duct is safely and properly fastened to the warm air outlet.
• Avoid sharp bends and corners to ensure maximum air flow and avoid back pressure that can
cause heat accumulation in heater.
• FAILURE TO COMPLY WITH THESE RECOMMENDATIONS COULD RESULT IN SHUTDOWN
OF THE HEATER.
SHUT DOWN
• Turn control switch to position “0” (STOP).
• Close fuel supply.
Important!
The air supply fan continues running for several minutes to cool down the combustion
chamber/heat exchanger. The fan can restart several times before finally switching off!
WARNING!
ELECTRICAL POWER TO THE UNIT MAY BE DISCONNECTED IN EMERGENCY SITUATIONS
ONLY. OTHERWISE, DO NOT STOP THE UNIT BY DISCONNECTING POWER. UNIT NEEDS
TO COOL DOWN USING ITS OWN FAN. FAILURE TO COMPLY WITH PROPER SHUT-DOWN
PROCEDURES CAN CAUSE DAMAGE TO THE COMBUSTION CHAMBER, HEAT
EXCHANGER, SAFETY FEATURES AND VOID WARRANTY.
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