NOTE: DIAGRAMS AND ILLUSTRATIONS ARE REPRESENTATIVE AND ARE NOT DRAWN TO SCALE.
4
LISTINg INfORMATION
These appliances comply with National Safety
Standards and are tested and listed by Intertek
(Report No. 100404899PRT-001) to ANSI
Z21.88 (in Canada, CSA-2.33), and CAN/CGA-
2.17-M91 (CSA P4.1) in both USA and Canada,
as vented gas fireplace heaters.
These appliances are listed by Intertek for
installation in bedrooms, aftermarket mobile
homes, and manufactured homes.
CODES
Installation must conform to local codes or, in
the absence of local codes, with the National
Fuel Gas Code, ANSI Z223.1/NFPA 54, latest
edition (in Canada, the current CAN/CSA-
B149.1 installation code).
The appliance, when installed, must be electri-
cally grounded and wired in accordance with
local codes, or, in the absence of local codes,
with the National Electrical Code, ANSI/NFPA
70, latest edition, or the Canadian Electrical
Code, CSA C22.1, latest edition.
LENNOX HEARTH PRODUCTS • ELITE LINEAR VIEW DIRECT-VENT GAS FIREPLACE (MODELS LDV42, LDV54) • INSTALLATION INSTRUCTIONS
gENERAL
INfORMATION
INTRODUCTION
LENNOX HEARTH PRODUCTS Elite Linear
models are direct-vent (top vent only), sealed
combustion, air-circulating gas fireplaces de-
signed for residential applications.
Direct-vent appliances operate with the com-
bustion chamber isolated from the indoor
environment. All air for combustion is brought
in from the outside, and exhaust gases are
vented through the same direct-vent, coaxial
(intake/exhaust) vent system.
These appliances are designed to operate
on natural or propane gas
only
. The use of
other fuels or fuel combinations will degrade
the performance of this system, may be
dangerous, and may void the warranty.
The electronic system is switchable between
standing and intermittent pilot modes
(see
Figure 11-2)
.
A remote control system is included with all
models and provides remote ON/OFF flame
control. (Manual adjustment of the gas valve
settings is not possible.) See
Page 25
for
details.
Electrical power (110 Vac line voltage) is rec-
ommended to operate the fireplace; however,
AA batteries (not provided) can be used for
full-time operation or as a backup in case of a
power outage.
Note: Batteries will operate the flame ON/
OFF function only.
EffICIENCIES
fireplace
Model
Natural gas
Propane
AfUE* Energuide
(P4)
AfUE* Energuide
(P4)
LDV42
66.7% 54.2% 69.6% 59.4%
LDV54
71.9% 63.2% 72.1% 65.5%
*AFUE (Annual Fuel Utilization Efficiency) is the
recognized U.S. rating system for the total effi-
ciency of heating products.
Figure 4-1
EffICIENCIES
REqUIREMENTS fOR COMMON-
WEALTh Of MASSAChUSETTS
These fireplaces are approved for installation in
the US state of Massachusetts if the following
additional requirements are met:
• Install appliance in accordance with Massa-
chusetts Rules and Regulations 248 C.M.R.
• Installation and repair must be done by a
plumber or gas fitter licensed in the Com-
monwealth of Massachusetts.
• The flexible gas line connector used shall
not exceed 36 inches (92 centimeters) in
length.
• The individual manual shutoff must be a
T-handle type valve.
Massachusetts horizontal Vent
Requirements
In the Commonwealth of Massachusetts, hori-
zontal terminations installed less than seven
(7) feet above the finished grade must comply
with the following additional requirements:
• A hard-wired carbon monoxide detector
with an alarm and battery backup must be
installed on the floor level where the gas
fireplace is installed. The carbon monoxide
detector must comply with NFPA 720, be
ANSI/UL 2034 listed and be ISA certified.
• A metal or plastic identification plate must
be permanently mounted to the exterior of
the building at a minimum height of eight (8)
feet above grade and be directly in line with
the horizontal termination. The sign must
read, in print size no less than one-half (1/2)
inch in size: GAS VENT DIRECTLY BELOW.
KEEP CLEAR OF ALL OBSTRUCTIONS.
COLD CLIMATE INSULATION
REqUIREMENTS
For cold climate installations:
• Use noncombustible caulk to seal all joints
around the appliance and wherever cold air
could enter the room.
• Caulk all gas line holes and other openings
(or stuff with unfaced fiberglass insulation).
• Caulk firestops only where pipe penetrates
an outside wall, attic, or other other uncon-
ditioned space.
• If the floor is above ground level, insulate
the outside chase cavity between the studs
and under the floor beneath the appliance.
• If installing the fireplace on a cement slab,
place a sheet of plywood or other raised
platform underneath to prevent cold transfer
to the fireplace and into the room.
• Drywall and tape all inside sur faces of sur-
rounding chase for maximum air tightness.
