4. Installation
PNEG-012
Vane Axial Heater
17
Heater Orifice Setup
The factory has set the orifices size for propane, high temperature and natural gas, low temperature.
1. Determine the type of gas to be used: Propane or natural gas.
2. Determine the operating temperature ranges to be used: High or low. Refer to tables on
and
3. For natural gas high temperature applications remove reducer bushing with pressure gauge and
remove 7/32" primary orifice from system. Replace reducer bushing and check connections
for leaks. For natural gas high temperature configuration there is no primary orifice in the system.
Refer to
Fuel - Temperature Table below.
4. For propane low temperature applications remove reducer bushing with pressure gauge and
replace the supplied 7/32" primary orifice with a 3/32" orifice supplied in control box. Replace
reducer bushing and check connections for leaks. Refer to
Fuel - Temperature Table below.
Figure 4I
Fuel - Temperature
Fuel
Temperature
High
Low
Natural Gas
Remove primary orifice completely.
No modifications required.
Standard with 7/32" orifice.
Propane
No modifications required.
Standard with 7/32" orifice.
Replace primary orifice with 3/32"
orifice supplied in control box.
Make sure the configuration matches the appropriate application in the
Fuel - Temperature Table above.
Propane has a higher BTU content than
natural gas. Do not remove 3/8" secondary orifice. Excessive heat rise due to
improper orifice sizing or removing the 3/8" secondary orifice will damage
grain or cause fire.
Summary of Contents for PNEG-012 Series
Page 27: ...PNEG 012 Vane Axial Heater 27 8 Wiring Diagrams Standard Heater Wiring...
Page 28: ...8 Wiring Diagrams 28 PNEG 012 Vane Axial Heater Standard Heater Schematic...
Page 29: ...8 Wiring Diagrams PNEG 012 Vane Axial Heater 29 Deluxe Heater...
Page 30: ...30 PNEG 012 Vane Axial Heater 9 Parts List Standard Heater Control Box Parts...
Page 34: ...9 Parts List 34 PNEG 012 Vane Axial Heater 24 26 and 28 Gas Heater Parts...
