Hydro-Hot™ Motor Coach Heating System Owner's Manual 06/02
Hydro-Hot™ Motor Coach Heating System Owner's Manual 06/02
Page 2-5
SECTION 2: OPERATING INSTRUCTIONS
Engine
Preheat,
continued
indicator light located on the Switch. Circulating the engine's coolant
through the Engine Preheat System will adequately warm the engine
for easy start-ups on cool mornings. Please contact your specific
motorhome manufacturer for exact “Engine Preheat” Switch loca-
tion.
NOTE: Allow approximately 1 to 2 hours of engine preheating run
time. Time will be shortest when the “Diesel” Switch is “ON.”
B. Turn OFF the Hydro-Hot's “Engine Preheat” whenever engine
preheating is not desired.
Page 2-6
2.6 Precautions
CAUTIONS:
• The Hydro-Hot's Exhaust is HOT!
• DO NOT park in areas where dry conditions exist underneath the
vehicle, as a fire may result (i.e. dry grassy fields) .
• DO NOT operate the Hydro-Hot’s Diesel-Fired Burner inside an
enclosed building.
• Operating the Hydro-Hot Diesel Burner or the 120 VAC Electric
Heating Element without the water and antifreeze solution will cause
serious damage to the Heater.
• The Heater should be switched OFF when refueling.
SECTION 2: OPERATING INSTRUCTIONS
Important
Information
NOTE: Supplemental Heat (HHE-200 & HHE-500 Models Only)
The Hydro-Hot's Engine Preheating System acts as a supplemental
heating source, in addition to the Diesel Burner and the 120 VAC
Electric Heating Element. While traveling, the engine's heated coolant
will automatically pass through the Engine Preheat / Motoraide System,
transferring heat into the Hydro-Hot's Heat Tank. This design feature
reduces the total operating hours of the Diesel-Burner and the 120 VAC
Electric Heating Element.
Engine
Preheat,
continued
Figure 2
Diesel
Electric
Hydro-Hot
By Vehicle Systems
Engine
Preheat
