Grain Systems PNEG-823 - Manual (Page 20)

20 PNEG-823 Deluxe Downwind Heater
8. Operating Procedure
Cycling Heater Operation
1. Thermostat must be wired into heater control box for heater to operate.
2. Open all manual shut off valves to heater unit.
3. Start fan. This will supply power to heater.
4. Turn thermostat dial to its highest setting.
5. Turn toggle switch ON.
6. Heater should now be lit. If not check to see that all gas is ON.
7. Set thermostat to desired setting (see deluxe thermostat manual for adjusting deluxe
thermostat control.)
8. Gas pressure should be adjusted so burner is on 75 percent of the time.
9. Watch as burner goes through a few cycles, to be sure that it is operating properly.
High-Low Heater Operation
1. Thermostat must be wired into heater control box for heater to operate.
2. Open all manual shut off valves to heater unit.
3. Start fan. This will supply power to heater.
4. Turn thermostat dial to its highest setting.
5. Turn toggle switch ON.
6. After 20 seconds both red lights should light up indicating power to the control circuit.
7. Heater should now be lit. If not, check to see that all gas is ON.
8. Open Low-Fire ball valve all the way.
9. Turn thermostat dial back slowly until heater cycles to low flame.
10. Adjust ball valve so that low flame pressure is at desired setting.
11. Turn thermostat dial to desired editing and wait for bin plenum to come up to temperature. Heater
should cycle to low flame after a few minutes. If heater does not cycle to low flame increase
high flame gas pressure.
12. Low flame should be adjusted so that temperature drops slowly until burner goes back to high flame.
13. Watch as burner goes through a few cycles, to be sure that it is operating properly.