Form No. 43539470
Oct 2019 A
–15–
10.0)
LIGHTING AND SHUTDOWN INSTRUCTIONS
10.1)
DIRECT SPARK (DS) IGNITION SYSTEM
1.
Turn on the gas and electrical supply.
2.
Set the thermostat to call for heat. The blower motor will energize.
3.
Ignition should occur after the 3 second air pre-purge.
4.
If ignition fails, two more ignition attempts are made. If unsuccessful the heater goes into lockout. Each time
after 20 seconds the unit will air pre-purge for 3 seconds and spark for 10 seconds. Turn the thermostat (or
power) off for 60 seconds to take the system out of lockout.
5.
If the heater does not light, manually reset the thermostat or shut off power completely for five (5) minutes
before attempting to relight.
6.
To permanently shut down the heater, turn off the gas and electrical supply.
11.0)
SEQUENCE OF OPERATION
The charts below show the sequence of operation for the normal operating cycle of the VF80CE DSI air heater.
11.1)
DIRECT SPARK IGNITION SEQUENCE OF OPERATION