IC-SA-1511 (02/2014)
V/LNV Series Manual
3-5
Operation
2.
When firing oil, open the manual oil valves.
3.
When firing on gas, open the main manual gas valve.
4.
When firing on gas, manually reset the high and low gas pressure switches (if applicable).
5.
Place the gas-oil selector switch (if applicable) in position for the desired fuel. With all limit and operating
controls calling for heat, the burner will follow the flame safeguard sequence.
6.
When the burner motor starts, open the gas cock.
7.
If firing on gas, when the main fuel lamp lights indicating pilot flame proven, slowly open the second
shutoff cock downstream of the main gas valve(s).
Refer to the manufacturer’s literature on primary control sequence of operations.
3.5 — Automatic Shutdown
Limit or operating controls open:
1.
Fuel valves close. Main fuel lamp goes off. Flame safeguard timer starts.
2.
Flame safeguard timer and burner motor stop. Burner is ready for startup on the next call for heat.
3.6 — Manual Shutdown
1.
Turn selector switch to the off position. The burner shuts down in Automatic Shutdown as above.
2.
When the burner motor stops, close all manual valves.
3.7 — Safety Shutdown
1.
If at any time during the operating cycle a flame failure occurs, the burner shuts down as in Automatic
Shutdown, with an additional post-purge, and the flame failure lamp is energized.
•
The lockout switch on the flame safeguard control must be manually reset before the burner will fire
again.
2.
If a low water condition occurs, the burner shuts down as in Automatic Shutdown.
3.
If a high or low gas pressure condition occurs while firing on gas, the burner shuts down as in Automatic
Shutdown.
•
Condition must be corrected and the respective gas pressure switch manually reset before the burner
will fire again on gas.
Read the flame safeguard manual and fully understand its contents before attempting to operate this
equipment. If the manual is not read and understood, serious personal injury or death may result.
!
Warning