Definitions - Whitfield P/N 775 024M Rev. C Installation And Operation Manual

DEFINITIONS

Air Wash
To inhibit buildup of soot on the door glass, air is deliv-
ered to the glass through an air wash system located in
the doorframe surrounding the glass.
Auger
It transfers the fuel down the burner tube into the Ultra-
Grate  .
Auger Motor
Motor specifications are: .4 Amp, 1 rpm (revolutions per
minute). It drives the auger to deliver fuel to UltraGrate
Blower, Convection (Room Air)
The blower's function is to transfer the heat from the ap-
pliance to heat the room air. Specifications: CFM - 66
low, 102 high; RPM – 1350 low, 2200 high; Current Draw
– 2.10 Amps.
Blower, Combustion (Draft Inducer)
The combustion blower has a radial impeller to deliver
more air to the UltraGrate
Grate  by creating a negative pressure. This is done by
extracting the exhaust gases out of the firebox and push-
ing the exhaust downstream to the flue exit. Specifica-
tions: CFM - 33 low, 56 high; RPM – 1350 low, 2200
high; Current Draw – 2.10 Amps.
Disc, Convection High Limit (L190-20F, N / C)
If the temperature of the convection air chamber reaches
190° F., the high limit auto reset will "trip" and stop the
flow of electricity to the auger motor. It will not automati-
cally reset until it has cooled below 170° F).
 . It pulls air into the Ultra-
Disc, Low Limit (F140-10F, N / O)
At stove temperatures above 140 F, this disc closes con-
tacts and allows power flow to the auger motor
UltraGrate (Burn Grate)
This is where combustion occurs.
Hopper
The hopper is where the pellets are stored.
Heat Output Switch
 .
This is the main power switch, which controls power to
the feed system auger motor, combustion blower and
convection blower. It has 3 feed rate settings, which con-
trols the burn rate.
Pressure Switch
The pressure switch is a safety device used to shut off
the feed system (auger motor) if there is too much back
pressure in venting system. Some possible causes are
as follows:
♦
The venting system is obstructed.
♦
High altitude or other misc. environmental condi-
tions affecting exhaust flow.
♦
Improper venting system.
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