Fuel Train Features And Controls - Conair GasTrac User Manual

F T
UEL RAIN
F
EATURES AND
C
ONTROLS
Proportional Mixer
Mixes air and gas in
the correct proportion
to produce the required
heat.
Zero Gas Governor
controls the gas feed to
the proportional mixer.
2-6
D
ESCRIPTION
The fuel train includes two automatic and manual safety gas
shutoff valves, four pressure switches, and a gas regulator and
governor to assure safe feeding of gas to the combustion burn-
er. The four pressure switches monitor gas pressure and
process air flow. The GasTrac will automatically shut down if
a pressure switch senses an unsafe condition.
Combustion air filter
Combustion air
pressure switch
Manual burner
inlet gas shut-
off valve
High gas
pressure switch
Manual gas supply
shutoff valve
GasTrac Process Air Heater
GasTrac horizontal models
Combustion air blower
Secondary
automatic safety
shutoff valve
Primary automatic
safety shutoff valve
Process air
differential
pressure switch
Low gas
pressure switch
Regulated gas pressure gauge
Gas pressure regulator
Gas inlet pressure gauge
UGD014/0497