Theory.of.operation; Propane.supply - Desa BLP170VTA Owner's Manual

The Fuel System:. The. hose/regulator. as-
sembly.attaches.to.the.propane.gas.supply..
The.propane.gas.moves.through.the.solenoid.
valve.and.out.the.nozzle.
The Air System:.The.motor.turns.the.fan..The.
fan.pushes.air.into.and.around.the.combustion.
chamber..This. air. is. heated. and. provides. a.
stream.of.clean,.hot.air.
Combustion.Chamber
Clean.
Heated.
Air.Out.
(Front)
Figure 2 - Cross Section Operational View (Heater may vary from illustration)
Propane.gas.and.propane.tank(s).are.to.be.
furnished.by.the.user.
Use. this. heater. only. with. a. propane. vapor.
withdrawal. supply. system.. See. Chapter. 5.
of.the.Standard for Storage and Handling of
Liquefied Petroleum Gas, ANSI/NFPA 58..
Your local library or fire department will have
this.booklet.
The. amount. of. propane. gas. ready. for. use.
from.propane.tanks.varies..Two.factors.decide.
this.amount:.
1.. The.amount.of.propane.gas.in.tank(s)
2.. The.temperature.of.tank(s)
4
tHeory oF oPeration
Spark.Plug
Nozzle
Air For Combustion
And Heating
ProPane suPPLy
www.desatech.com
The Ignition System:.The.direct.spark.ignitor.
(DSI).sends.voltage.to.the.spark.plug/ignitor..
The. spark. plug/ignitor. ignites. the. fuel. and.
air.mixture.
The Safety Control System:. This. system.
causes the heater to shut down if the flame
goes.out.
Fan
Motor
Fuel
The.chart.below.shows.the.number.of.100.lb..
(45.kg).tanks.needed.to.run.this.heater.
Do. not. operate. this. product. with. any. tank.
smaller.than.100.pounds.
Temperature
at tank location
. above.20°.F.(-7°.C).
. 2 0°.F.(-7°.C).to.-10°.F.(-23°.C).
. below.-10°.F.(-23°.C).
. .
Less.gas.is.vaporized.at.lower.temperatures..
You. may. need. two. or. more. 100. lb.. (45. kg).
tanks. or. one. larger. tank. in. colder. weather..
Your.local.propane.gas.dealer.will.help.you.
select. the. proper. supply. system.. The. mini-
mum. surrounding-air. temperature. rating. for.
each.heater.is.-20°F.(-29°C).
Cool.
Air.In.
(Back)
Power.
Cord
Solenoid.
Valve
Hose/Regulator.
Assembly
Number
of tanks
2
3
(Use.larger
.tank)
121232-01A