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Version B - For Reduction G016.J
®
3
Model 3VH22
Dayton Operating Instructions and Parts Manual
LO
OFF
HI
MED
Theory of Operation
Figure 2 - Product Identification
Piezo Ignitor
Button
Valve
Inlet
Shell
Base
Control
Knob
Hose/Regulator
Assembly
Product Identification
Ignitor
Electrode
Burner
Tube
Thermocouple
Top
Specifications
Output Minimum Fuel Maximum Fuel Size Weight
Rating Btu/Hr Fuel Consumption Consumption L x W x H (Inches) (pounds)
40,000 to 80,000 Propane 0.44 Gallons/Hour 0.87 Gallons/Hour 20 x 15 x 16 13 (Heater)
Vapor Only 1.86 Pounds/Hour 3.71 Pounds/Hour 16 x 15 x 20 17 (Shipping)
Maximum Supply Minimum Supply Min. Temperature Manifold Pressure Ignitor
Pressure to Regulator Pressure to Regulator Surrounding Air (Inches of Water Column) Gap (Inches)
200 psi 20 psi (for purposes -20ºF (-29ºC) 18 (High) 0.195
of input adjustment) 23.8 (Low)
THE FUEL SYSTEM
The hose/regulator assembly attaches to
the propane gas supply. This provides fuel
to the heater.
THE IGNITION SYSTEM
The piezo ignitor lights the main burner.
THE AUTOMATIC CONTROL SYSTEM
This system causes the heater to shut
down if the flame goes out.
General Safety Information
(Continued)
• To prevent injury, wear gloves when
handling heater.
• Never attach duct work to heater.
• Do not alter heater. Keep heater in
its original state.
• Do not use heater if altered.
• Turn off propane supply to heater
when not in use.
• Use only original replacement parts.
This heater must use design-specific
parts. Do not substitute or use
generic parts. Improper replacement
parts could cause serious or fatal
injuries.