Lennox Hearth P/N 775 024M Rev. C Manuale Utente
DEFINITIONS
Page 23
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
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
. It pulls air into the Ultra-
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
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
cally reset until it has cooled below 170
° F).
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
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:
♦
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.
tions affecting exhaust flow.
♦
Improper venting system.