Location - Lennox MERIT Series Installation Instructions Manual

LENNOX MERIT
Test gage connections are provided on the
front of the millivolt gas control valve (iden-
tified E for the inlet and A for the manifold
side). A 1/8" NPT test gage connection is
provided at the inlet and manifold side of
the electronic gas control valve.
Minimum inlet gas pressure to the appliance is
4.5 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 the ap-
pliance is 10.5 inches water column (2.61 kPa)
for natural gas and 13.0 inches water column
(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
testing 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 pressures 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.
These appliances are designed to operate on
natural or propane gas only. The use of other
fuels or combination of fuels will degrade the
performance of this system and may be dan-
gerous.
Input of appliance is 24,000 bTU/HR.
Gas Orifice
Type Size
#42
Natural
(.0935)
propane
(.058)
Nominal operating pressures for the manifold
side of the gas control system are; 3.5 inches
water column (0.87 kPa) for natural gas models
and 10 inches water column (2.49 kPa) for
propane gas models.
4
SERIES B-VENT GAS FIREPLACES • 36" LMBV MODELS • INSTALLATION INSTRUCTIONS
®

LOCATION

See Figure 1. In selecting the location, the
aesthetic and functional use of the appliance
are primary concerns. However, vent system
routing to the exterior and access to the fuel
supply are also important. due to high tem-
peratures the appliance should be located
out of traffic and away from furniture and
draperies. Consideration should be given to
traffic ways, furniture, draperies, etc., due to
elevated surface temperatures. The location
should also be free of electrical, plumbing or
other heating/air conditioning ducting.
The appliance should be mounted on a fully
supported base extending the full width and
depth of the unit. The appliance may be located
on or near conventional construction materials.
However, if installed on combustible materials,
such as carpeting, vinyl tile, etc., a metal or
wood barrier covering the entire bottom surface
must be used.
These appliances may be used for bedroom
installations in the United States and are listed
accordingly. These units may not be installed
in bedrooms in Canada.
elevation
0 - 4500'
(0 - 1370 m)
0 - 4500'
(0 - 1370 m)
NOTE: DIAGRAMS & ILLUSTRATIONS ARE NOT TO SCALE.
Typical Locations
Figure 1