Lennox Hearth B-MPC0353VDE User Manual
Page 3
3
NOTE: DIAGRAMS & ILLUSTRATIONS NOT TO SCALE.
Carbon Monoxide Poisoning: Early signs of
carbon monoxide poisoning are similar to
the flu with headaches, dizziness and/or nau-
sea. If you have these signs, obtain fresh air
immediately. Turn off the gas supply to the
appliance and have it serviced by a qualified
professional, as it may not be operating
correctly.
OPERATION AND CARE OF YOUR
APPLIANCE
Appliance operation may be controlled by the
following means: the factory provided modesty
panel-mounted ON-OFF control switch, a re-
motely located optional wall switch or optional
remote control. The modesty panel mounted
ON-OFF control switch is located behind the
hinged drop-down panel below the appliance
front glass enclosure panel. See
Figure 1.
Gas Controls/Control Compartment Access
The gas controls can be found behind the
hinged drop-down panel.
To open the hinged drop-down panel, actuate
the spring loaded magnetic catches securing
the door. First, gently depress the upper right
top corner of the panel until the magnet catch
"pops" the door free. Then, gently pulling the
panel forward, disengage the left magnet catch
and allow the panel to swing down to open.
On millivolt systems, the piezo ignitor, Hi/Lo
flame adjustment knob, and pilot and main gas
ON/OFF control knob are located on the mod-
esty panel. On both millivolt and electronic
systems the gas valve is located behind the
modesty panel. See
Figure 1.
These appliances are designed to operate
on natural or propane gas only.
Millivolt Models -
Input of millivolt models is shown in the fol-
lowing table:
Electronic Models -
Electronic models have a fixed rate gas valve.
Input of electronic models is shown in the
following table:
Table 1 shows the units' gas orifice size for
the elevations indicated.
Maximum manifold pressure is 3.5 in. w.c.
(0.87 kPa) for natural gas and 10 in. w.c.
(2.49 kPa) for LP/Propane gas.
Do not use these appliances if any part has
been under water. Immediately call a qualified,
professional service technician to inspect the
appliance and to replace any parts of the
control system and any gas control which
have been under water.
Ne pas se servir de cet appareil s'il a été plongé
dans l'eau, complètement ou en partie. Appeler
un technicien qualifié pour inspecter l'appareil et
remplacer toute partie du système de contrôle et
toute commande qui ont été plongés dans l'leau.
Table 1
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WARNING: FAILURE TO COMPLY
WITH THE INSTALLATION AND OPER-
ATING INSTRUCTIONS PROVIDED IN
THIS DOCUMENT WILL RESULT IN
AN IMPROPERLY INSTALLED AND OP-
ERATING APPLIANCE, VOIDING ITS
WARRANTY. ANY CHANGE TO THIS
APPLIANCE AND/OR ITS OPERATING
CONTROLS IS DANGEROUS. IM-
PROPER INSTALLATION OR USE OF
THIS APPLIANCE CAN CAUSE SERI-
OUS INJURY OR DEATH FROM FIRE,
BURNS, EXPLOSION OR CARBON
MONOXIDE POISONING.
WARNING: CHILDREN AND ADULTS
SHOULD BE ALERTED TO THE HAZ-
ARDS OF HIGH SURFACE TEMPERA-
TURES. USE CAUTION AROUND THE
APPLIANCE TO AVOID BURNS OR
CLOTHING IGNITION. YOUNG CHIL-
DREN SHOULD BE CAREFULLY SUPER-
VISED WHEN THEY ARE IN THE SAME
ROOM AS THE APPLIANCE.
WARNING: DO NOT PLACE CLOTH-
ING OR OTHER FLAMMABLE MATE-
RIALS ON OR NEAR THIS APPLIANCE.
AVERTISSEMENT: SURVEILLER LES
ENFANTS. GARDER LES VÊTEMENTS,
LES MEUBLES, L'ESSENCE OU AUTRES
LIQUIDES À VAPEUR INFLAMMABLES
LOIN DE L'APPAREIL.
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Test gage connections are provided on the
front of the millivolt gas control valve (identi-
fied OUT for the manifold side and IN for inlet
pressure. A
¹⁄₈" NPT test gage connection is
provided on the electronic gas control valve
adjacent to the outlet to the main burner.
Minimum inlet gas pressure to these appliances
is 5.0 inches water column (1.24 kPa) for natural
gas and 11 inches water column (2.74 kPa) for
propane for the purpose of input adjustment.
Maximum inlet gas supply pressure to these
appliances is 10.5 inches water column (2.61
kPa) for natural gas and 13.0 inches water col-
umn (3.23 kPa) for propane.
The appliance must be isolated from the gas
supply piping system (by closing its individual
manual shut-off valve) during any pressure test-
ing of the gas supply piping system at test
pressures equal to or less than
¹⁄₂ psig (3.5 kPa).
The appliance and its individual shut-off valve must
be disconnected from the gas supply piping system
during any pressure testing of that system at pres-
sures in excess of
¹⁄₂ psig (3.5 kPa).
These appliances must not be connected to a
chimney or flue serving a separate solid fuel
burning appliance.
Any safety guard or screen removed for ser-
vicing the appliance must be replaced prior
to operating the appliance.