2017_E_TYPE-HL.doc Page 33 of 55 24-Oct-2017
Firing Sequence [Contd.]
NOTE 1: When the temperature in the oxidizer chamber reaches the set point indicated on
oxidizer chamber controller TE2, control output OUT1 will modulate the oxidizer burners
Hi/Lo actuator OMV to maintain temperature at the set point value through to the end of the
program on TE1. If oxidizer temperature exceeds 100
o
F above set point the water-misting
valve WV1 will activate.
NOTE 2: WPS1 Water pressure switch must prove before process burner can light. If at any
time WPS1 water pressure drops below acceptable water pressure, WPS1 will open and shut
down the process burner.
NOTE 3: When the temperature in the process chamber reaches the set point indicated on
process chamber controller TE1, control output OUT1 will modulate the process burners
Hi/Lo actuator PMV to maintain temperature at the set point value through to the end of the
program. If temperature exceeds 50
o
F above set point the process high temp OUT2 closes
activating the water-misting valve WV1.
If the 1
st
processor burner flame sensor PUV1 fails to prove, the Honeywell module will close
processor main gas valve PMV putting burner into lockout.
If the oxidizer flame sensor OUV1 fails to prove, the Honeywell module will close the oxidizer
main gas valve OM1, putting burner into lockout.
Note: Reset buttons are located on the face of the flame safety modules.
If the oxidizer goes into lockout anytime during the operation, the process burner will not fire
until the oxidizer is reset.
If the temperature in the oxidizer reaches 1850
0
F, the high temperature safety CR8 energizes,
opening the CR-8 relay, causing the oven to go into lockout. Press the reset on the high
temperature safety controller TE4. The oven firing sequence will repeat.
Note: Burner ignition is one try at 4 seconds. If flame is not detected in 4.0 seconds, the
burner will go into lockout. Flame failure response time 0.8 seconds.
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