Despatch RFD1-42-2E with Protocol Plus - Manual (Page 21)

13
Startup
For fastest oven heat-up time, close the fresh-air vent. After the desired temperature is
reached, the vent may be adjusted as needed.
1.
Start Fan.
a. Open oven door.
b.
Press Power switch to the On position. You will hear the exhaust and
recirculating fans start.
c.
Shut oven door.
d.
Check that the control display turns on.
2.
Operate the temperature control as desired by following the control operation
instructions that follow.
Note that in a Class A oven, the heater can not be energized until the forced exhaust
system has brought in a minimum amount of fresh air into the chamber. The purge
timer provided prevents the heater from energizing until the oven has had enough time
to bring in the amount of fresh air required. The purge timer is energized by the airflow
switch which closes when the exhaust system is running.
The pre-determined purge time is two minutes for the RFD1-42.