Vermont Casting LHEC20, LHEC30 User Manual
Natural Vent Insert
Models: LHER20
LHEC20
LHEC30
Installation Instructions & Homeowner's Manual
WARNING! IF THE INFORMATION IN THIS MANUAL IS NOT FOLLOWED EXACTLY, A FIRE OR
EXPLOSION MAY RESULT CAUSING PROPERTY DAMAGE,PERSONAL INJURY OR LOSS OF LIFE.
FOR YOUR SAFETY
What to Do if You Smell Gas:
• Do not try to light any appliance.
• Do not touch any electric switch.
• Do not use any phone in your building.
• Immediately call your gas supplier from your
neighbours phone. Follow the gas suppliers
instructions.
• If you cannot reach your gas supplier call the
fire department.
I
S
G
E
N
D
Vermont Castings, Majestic Products
410 Admiral Blvd. • Mississauga, Ontario, Canada L5T 2N6 • 905-670-7777
www.majesticproducts.com • www.vermontcastings.com
C
E
D
R
E
I
T
I
F
INSTALLER: DO NOT DISCARD THIS MANUAL - Leave For Homeowner
FOR YOUR SAFETY
DO NOT STORE
OR USE GASOLINE OR OTHER
FLAMMABLE VAPOURS AND LIQUIDS
IN THE VICINITY OF THIS OR ANY
OTHER APPLIANCE.
• Installation and service must be performed
by a qualified installer, service agency or
your gas supplier.
CERTIFIED
10005360 6/03 Rev. 0
Vermont Castings, Majestic Products LHE Natural Vent Insert
Table of Contents
PLEASE READ THE INSTALLATION & OPERATING INSTRUCTIONS BEFORE USING THIS APPLIANCE.
Thank you and congratulations on your purchase of a Vermont Castings fireplace insert.
IMPORTANT - Read all instructions and warnings carefully before starting installation. Failure to follow these
instructions may result in a possible fire hazard and will void the manufacturers' warranty.
Installation Instruction
Important Curing/Burning Instructions............................................................................................... 3
Locating Your Fireplace Insert .......................................................................................................... 3
Insert Applications ............................................................................................................................. 3
Fireplace & Trim Dimensions ............................................................................................................ 4
Mantels.............................................................................................................................................. 5
Framing & Finishing .......................................................................................................................... 5
Zero Clearance Applications ............................................................................................................. 5
Gas Specifications ............................................................................................................................ 6
Gas Inlet & Manifold Pressures......................................................................................................... 6
High Elevations ................................................................................................................................. 6
Preparation........................................................................................................................................ 6
Gas Line Installation.......................................................................................................................... 6
Gas Supply Pressures ...................................................................................................................... 7
Fan Kit ............................................................................................................................................... 7
Fan Removal Instructions ................................................................................................................. 7
Installation of Trim Switch for RN/RP Gas Valves............................................................................. 7
Venting and Installation ..................................................................................................................... 8
Common Flue Installations................................................................................................................ 9
Liner Installation ................................................................................................................................ 9
Draft Relief Opening.......................................................................................................................... 9
Test Chimney Draw........................................................................................................................... 9
Vent Safety System......................................................................................................................... 10
Vent Safety Switch Access ............................................................................................................. 10
Ceramic Refractory Installation ....................................................................................................... 10
Operating Instructions
General Glass Information ............................................................................................................. 11
Louvre Removal .............................................................................................................................. 11
Glass Cleaning ................................................................................................................................ 11
Glass Frame Removal..................................................................................................................... 11
Log & Burner Lava Rock Installation ............................................................................................... 11
Large Lava Rock Placement ........................................................................................................... 12
Flame Adjustment ........................................................................................................................... 12
Flame Characteristics...................................................................................................................... 12
First Firing ....................................................................................................................................... 13
Lighting & Operating Instructions .................................................................................................... 14
Troubleshooting Gas Control (820 Millivolt Gas Valve) .................................................................. 15
Troubleshooting Gas Control (Honeywell) ..................................................................................... 16
Instructions for RF Comfort Control Valve ...................................................................................... 17
Maintenance
Cleaning the Standing Pilot Control System ................................................................................... 21
Trim Cleaning .................................................................................................................................. 21
Replacement Parts.............................................................................................................................................. 22
Optional Accessories
Remote Controls ............................................................................................................................. 25
Zero Clearance Kit .......................................................................................................................... 25
Trim Options.................................................................................................................................... 25
Warranty .............................................................................................................................................................. 26
EnerGuide............................................................................................................................................................ 28
2
10005360
Vermont Castings, Majestic Products LHE Natural Vent Insert
Installation & Operating Instructions
This gas appliance should be installed by a qualified installer
in accordance with local building codes and with current CSAB149.1 Installation codes for Gas Burning Appliances and
Equipment.
FOR U.S. Installations follow local codes and/or the current
National Fuel Gas Code ANSI Z223.1.
FOR SAFE INSTALLATION AND OPERATION OF
YOUR GAS FIREPLACE PLEASE NOTE THE
FOLLOWING:
1. This appliance gives off high temperatures and should be
located out of high traffic areas and away from furniture
and draperies.
2. Children and adults should be alerted to the hazards of the
high surface temperatures of this appliance and should
stay away to avoid burns or ignition of clothing.
3. Children should be carefully supervised when they are in
the same room as your appliance.
4. Under no circumstances should this appliance be modified.
Parts removed for servicing should be replaced prior to
operating this appliance again.
5. Installation and any repairs to this appliance should be
carried out by a qualified service person. A professional
service person should be contacted to inspect this appliance annually. Make it a practice to have all of your gas
appliances checked annually. More frequent cleaning may
be required due to excess lint and dust from carpeting,
bedding material, etc.
6. Control compartments, burners and air passages in this
appliance should be kept clean and free of dust and lint.
Make sure that the gas valve and pilot light are turned off
before you attempt to clean this unit.
7. The venting system (chimney) of this appliance should be
checked at least once a year and if needed your venting
system should be cleaned.
8. Keep the area around your appliance clear of combustible
materials, gasoline and other flammable vapor and liquids.
This appliance should not be used as a drying rack for
clothing, nor should Christmas stockings or decorations be
hung in the area of it.
9. Under no circumstances should any solid fuels (wood, coal,
paper or cardboard etc.) be used in this appliance.
10.Whether the zero clearance kit is installed directly on
carpeting, vinyl tile or any combustible material other than
wood, this heater must be installed on a metal or wood
panel extending the full width and depth of the heater. The
insert can not be installed directly onto or into
combustibles.
This appliance may be installed in an aftermarket
permanently located, manufactured (mobile) home,
where not prohibited by local codes.
This appliance is only for use with the type of gas
indicated on the rating plate.
Proposition 65 Warning: Fuels used in gas,
woodburning or oil fired appliances, and the products
of combustion of such fuels, contain chemicals known
to the State of California to cause cancer, birth defects
and other reproductive harm.
California Health & Safety Code Sec. 25249.6
10005360
IMPORTANT:
PLEASE READ THE FOLLOWING CAREFULLY
It is normal for fireplaces fabricated of steel to give off
some expansion and/or contraction noises during the
start up or cool down cycle. Similar noises are found
with your furnace heat exchanger or car engine.
It is not unusual for your Vermont Castings, Majestic
Products gas fireplace to give off some odor the first
time it is burned. This is due to the curing of the paint
and any undetected oil from the manufacturing process.
Please ensure that your room is well ventilated -
open all windows.
It is recommended that you burn your Vermont
Castings, Majestic Products fireplace for at least ten
(10) hours the first time you use it. If optional fan kit has
been installed, place fan in the "OFF" position during
this time.
Locating Your Gas Fireplace Insert with
Zero Clearance Kit
X
E
D
X
X
F
Fig. 1 Locating unit with zero clearance kit.
A) Flat on wall B) Cross corner
C) Island D) *Room divider
E) *Flat on wall corner F) Chase installation
NOTE: (Fig. 1)
* When you install your Vermont Castings, Majestic Products
fireplace in (D) Room divider or (E) Flat on wall corner positions,
a minimum of 6 (X) inches (153mm) clearance must be maintained from the perpendicular wall and the outer edge of the trim.
A
C
B
FP1249
Insert Applications
Before installing the gas fireplace insert, consideration
must be given to the functioning needs of the fireplace.
The size of the fireplace cavity (min. 25¹⁄₄"W x 17¹⁄₄"H x
13¹⁄₂" D for the LHEC20 and LHER20, 28³⁄₄"W x 21"H x
15¹⁄₂"D for LHEC30 ), the design of the chimney for
effective venting should be determined. The availability of
the gas supply as well as electricity for the insert fan
must be confirmed.
Your Natural Vent Insert unit is designed to
be vented vertically with a minimum height
of 12 feet and a maximum vertical height of
35 feet.
3
Vermont Castings, Majestic Products LHE Natural Vent Insert
Fireplace & Trim Dimensions
A
Q
V
T
R
Minimum Fireplace
Insert Opening
1=LHESSB
2=LHESLB/LHEABSL/LHESLGA
3=LHECSLB/LHECSLMB/LHECSLSA
4=LHEACNSS
5=LHETCK
T
R
I
M
F
I
R
E
P
L
A
C
E
M
O
I
P
N
E
I
N
M
I
U
N
M
G
A-1 20⁷⁄₈" (530mm) 20⁷⁄₈" (530mm) 26³⁄₄" (680mm)
B-1 30³⁄₄" (781mm) 30³⁄₄" (781mm) 38¹⁄₄" (972mm)
A-2 24¹⁄₄" (616mm) 24¹⁄₄" (616mm) 28³⁄₁₆" (716mm)
B-2 37¹⁄₂" (952mm) 37¹⁄₂" (952mm) 41" (1042mm)
A-3 24¹⁄₄" (616mm) 24¹⁄₄" (616mm) 28¹⁄₄" (717mm)
B-3 38¹⁄₈" (968mm) 38¹⁄₈" (968mm) 41¹¹⁄₁₆" (1059mm)
A-4 20³⁄₄" (527mm) 20³⁄₄" (527mm) 24³⁄₄" (629mm
B-4 30⁷⁄₈" (784mm) 30⁷⁄₈" (784mm) 34⁷⁄₁₆" (875mm)
A-5 28" (711mm) 28" (711mm) 32¹⁄₄" (819mm)
B-5 45" (1143mm) 45" (1143mm) 49" (1245mm)
C 25⁵⁄₈" (651mm) 25⁵⁄₈" (651mm) 29³⁄₁₆" (741mm)
D 16¹⁄₂" (419mm) 16" (406mm) 16⁷⁄₈" (428mm)
E 35" (889mm) 35" (889mm) 35" (889mm)
F 26⁵⁄₈" (676mm) 26⁵⁄₈" (676mm) 26⁵⁄₈" (676mm)
G 13" (331mm) 14" (355mm) 15¹⁄₂" (394mm)
H 17" (432mm) 17¹⁄₄" (438mm) 20³⁄₄" (527mm)
I 13³⁄₈" (340mm) 13¹⁄₈" (333mm) 16" (406mm)
J 19¹⁄₈" (486mm) 19³⁄₈" (492mm) 23¹⁄₄" (590mm)
K 15" (381mm) 15" (381mm) 17" (432mm)
L 10¹⁄₂" (266mm) 11¹⁄₂" (292mm) 12³⁄₄" (324mm)
M 8¹⁄₂" (216mm) 8¹⁄₂" (216mm) 8¹⁄₂" (216mm)
N 37¹⁄₄" (946mm) 37¹⁄₄" (946mm) 37¹⁄₄" (946mm)
O 19¹⁄₈" (486mm) 19¹⁄₈" (486mm) 19¹⁄₈" (486mm)
P 27¹⁄₄" (692mm) 27¹⁄₄" (692mm) 27¹⁄₄" (692mm)
Q 17¹⁄₄" (438mm) 17¹⁄₄" (438mm) 21" (533mm)
R 25¹⁄₄" (641mm) 25¹⁄₄" (641mm) 28³⁄₄" (730mm)
S 13¹⁄₂" (343mm) 14" (355mm) 16" (406mm)
T 17" (432mm) 17" (432mm) 17³⁄₄" (451mm)
U 13³⁄₄" (349mm) 14" (355mm) 16" (406mm)
V 18" (457mm) 18" (457mm) 21⁵⁄₁₆" (541mm)
4
B
D
L
B
C
Insulation
U
S
Q - Fireplace opening height
R - Fireplace opening width
S - Depth of insert
T - Firebox width at insert depth(S)
LHEC20 LHER20 LHEC30
Zero Clearance Kit
Gas Inlet KnockoutAir Circulating Channel
G
M
F
A
O
E
U - Firebox depth at insert back height (V)
V - Insert back height
NOTE: LHESLGA is only available for
Model LHEC30
I
K
P
N
J
H
10005360
Mantels
Vermont Castings, Majestic Products LHE Natural Vent Insert
When the unit is installed into a woodburning fireplace,
the minimum distance the mantel can be placed above
the fireplace is governed by local building codes
applicable to woodburning fireplaces. Consult local
authorities having jurisdiction for these clearances.
For applications requiring the use of a Zero Clearance
Kit, the minimum height a mantel can be installed
above the fireplace is 24" (610mm) from the top of the
upper louvres. The maximum mantel depth is 8"
(200mm). (Fig. 2)
The underside of the mantel will become
warm. Use only finishes which are heat
resistant and do not discolor.
24" Min.
(610mm)
FP1325
Fig. 2 Minimum mantel height above fireplace.
Framing & Finishing
37¹⁄₄" (946mm)
35"
(889mm)
Air Inlet Channel
27¹⁄₄" (692mm)
19¹⁄₈"
Drywall
Fig. 3 LHE insert framing dimensions.
(486mm)
Finish Wall
Decorative Trim Kit
FP1351
NOTE: Insulating around the fireplace will result in
overheating and possible malfunctioning of the circulating fan.
Zero Clearance Applications
An alternate air supply is recommended
with this component.
For Zero Clearance Kit applications, it is important to
determine the finished facing material before beginning
to frame. This will allow for the thickness of the finishing
material between the frame and the fireplace trim.
Similarly, consideration must be given to the 1" inch
depth of the air inlet channel sitting on the fireplace
base. Finishing material for the hearth should be flush
with the top of the air inlet channel.
If the fireplace is installed at floor level a noncombustible hearth must extend a minimum 12" (305mm) in
front of the fireplace.
If the fireplace is recessed into the wall and at least 12"
(305mm) above floor level, no hearth is required.
The use of wallpaper adjacent to this
fireplace is not recommended as high
temperatures given off by this fireplace
may adversely effect the binders in the
adhesive used to apply the wallpaper.
10005360
For installation other than in existing woodburning
fireplaces such as new construction or renovation
projects, a Zero Clearance Kit must be used. The kit
enables these inserts to be installed in combustible
environments. Whenever using a Zero Clearance Kit,
consideration must be given to the dimensions of the
Zero Clearance Kit and the requirements of the Air Kit.
NOTE: If a Zero Clearance Kit is required for models LHEC20/LHER20/LHEC30 Natural Vent Inserts,
only the Vermont Castings, Majestic Products zero
clearance kit HEZC is approved to be used. When
using the HEZC with insert models LHEC20 or
LHER20, the Trim Closure Kit, LHE20TCK, must
also be installed.
5
Vermont Castings, Majestic Products LHE Natural Vent Insert
Gas Specifications
Max. Min.
Input Input
Model Fuel Gas Control Btu/h Btu/h
LHEC20RN Natural Gas Millivolt Hi/Lo 20,000 14,000
LHEC20RP Propane Gas Millivolt Hi/Lo 20,000 15,000
LHEC20RFN Natural Gas Comfort Control 20,000 14,000
LHEC20RFP Propane Gas Comfort Control 20,000 15,000
LHER20RN Natural Gas Millivolt Hi/Lo 20,000 14,000
LHER20RP Propane Gas Millivolt Hi/Lo 20,000 15,000
LHEC30RN Natural Gas Millivolt Hi/Lo 30,000 21,000
LHEC30RP Propane Gas Millivolt Hi/Lo 30,000 22,500
LHEC30RFN Natural Gas Comfort Control 30,000 21,000
LHEC30RFP Propane Gas Comfort Control 30,000 22,500
Gas Inlet & Manifold Pressures
Natural LP
Minimum Inlet Pressure 5.5" W.C.11.0" W.C.
Maximum Inlet Pressure 14.0" W.C. 14.0" W.C.
Manifold Pressure 3.5" W.C. 10.0" W.C.
Do not use this appliance if any part of it
has been under water. Immediately call a
qualified service technician to inspect the
unit and replace any part of the control
which has been under water.
These gas inserts are approved for installation in
solid fuel burning masonry or zero clearance
fireplaces.
LHEC20 / LHER20 / LHEC30
Certified To
ANSI Z 21.88-2002 / CSA 2.33-2002
Vented Gas Fireplace Heaters
High Elevations
Input ratings are shown in BTU per hour and are
certified without deration for elevations up to
4,500 feet (1,370m) above sea level.
For elevations above 4,500 feet (1,370m) in USA,
installations must be in accordance with the
current ANSI Z223.1 and/or local codes having
jurisdiction.
In Canada, please consult provincial and/or local
authorities having jurisdiction for installations at
elevations above 4,500 feet (1,370m).
Preparation
Before beginning, remove glass door and logs from
unit. Also check to make sure there is no hidden
damage to the unit. Take a minute and plan out the
gas,venting and electrical route. It is best to start with
the gas line first followed by the chimney liner. (Refer to
Page 9)
Gas Line Installation
When purging the gas line, the front
glass must be removed.
If gas piping from the source to the heater location has
not been accomplished, install the required pipe.
Consult local plumbing code to assure proper pipe size.
The gas pipeline can be brought in through the rear or
the base of the heater.
NOTE: The gas line connection can be made of either
properly tinned 3/8" copper tubing, 1/2" rigid pipe or an
approved flex connector then reduced to 3/8" to the
heater. Some municipalities have additional local
codes, it is always best to consult your local authority
and the CSA- B149.1 installation code.
U.S. Installations consult the current National Fuel
Gas Code, ANSI Z223.1
Always check for gas leaks with a mild
soap and water solution. Do not use an
open flame for leak testing.
The gas control is equipped with a captured screw type
pressure test point, therefore it is not necessary to
provide a 1/8" test point up stream of the control.
When using copper or flex connector, use only
approved fittings. Always provide a union when using
black iron pipe so the gas line can be easily
disconnected for burner or fan servicing. See gas
specifications for pressure details and ratings. NOTE:
If flex connector is used, it must be kept inside of the
heater.
1/2" Gas Supply
1/2" x 3/8" Shut Off Valve
3/8" Nipple
3/8" Union
3/8"
Nipple
FP297
Fig. 4 Typical gas supply installation.
6
10005360
Vermont Castings, Majestic Products LHE Natural Vent Insert
Gas Supply Pressures
This heater must be isolated from the gas supply
piping system by closing its individual manual shut-off
valve during any pressure equal to or less than 1/2
psig (3.45kPa).
The heater and its individual shut-off valve must be
disconnected from the gas supply piping system during
any pressure testing of that system at test pressures in
excess of 1/2 psig (3.45kPa).
Fan Kit
115 volt, 60 Hz. 56w (Model FK24)
NOTE: The LHER20 is not designed for a fan kit.
The fan kit includes the following: fan, temperature
sensor, speed control and a 6 ft. cord. The following
explains how to start and set the fan for automatic
operation.
1. Plug in the electrical cord.
2. Start gas fire - see lighting procedures.
3. Turn on fan speed control.
4. Wait until the unit has warmed up sufficiently to
activate the temperature sensor, approx. 5-10
minutes.
5. Once fan starts, adjust speed control to desired fan
speed. The fan will now automatically come on every
time the fireplace is in operation. Should the fan not
be needed simply turn off the speed control.
The appliance, when installed must be
electrically connected and grounded in
accordance with local codes or, in the
absence of local codes, with the current
CSA C22.1 Canadian Electrical Code.
U.S. Installations, follow local codes and
the National Electrical Code, ANSI/NFPA
No. 70.
Should this fan require servicing, the
power supply must be disconnected. For
rewiring of any replacement components
refer to Figure 6.
Fan Removal Instructions
1. Turn off gas and electricity.
2. Remove the front glass.
3. Remove the logs.
CAUTION: Logs may be hot!
5. Remove the fan mounting nuts (2 nuts). (Fig. 5)
6. Slip off the electrical connector at the motor.
7. Lift out the fan.
8. To reinstall reverse procedure.
Screw
Stud
Thermal Sensor is
Attached to Burner
Base
Screw Stud
Fan Speed Control/Junction Box
Fig. 5 Fan location.
Temperature Sensor
Speed
Control
Black
White
Ground
Fig. 6 Wiring diagram RN/RP. NOTE: For comfort valve
wiring diagram refer to Page 18, Figure 27.
Fan is Installed at
the Back of the
Air Intake Box
Fan
FP1252
FP394
Installation of Trim Switch
for RN/RP Gas Valves
1. Thread wire through openings on the right side of
fireplace. Do not cut wire or insulation on metal edges.
2. Insert ON/OFF switch with wiring assembly into the
bracket switch with the pre-punched opening mounted
on the right side of the trim. (Fig. 7)
3. For left side installation, relocate the bracket switch
to the left side of the trim kit and repeat Step 2. (Fig.
8)
4. Connect wiring from the switch to the gas valve (Fig.
9a & b).
Right Side Installation
On/Off
Switch
Assembly
Left Side Installation
On/Off
Switch
Assembly
4. For Model LHEC20: remove burner assembly and
bracket rear log. For Model LHEC30: remove
bracket rear log and cover fan.
10005360
Wiring from
Millivolt Gas
Valve
Fig. 7 Insert ON/OFF switch with wiring assembly into
bracket switch.
FP1330
7
Vermont Castings, Majestic Products LHE Natural Vent Insert
Venting Installation
1. The fireplace may be installed in and vented through
any solid fuel fireplace that has a minimum fireplace
opening 25¹⁄₄"W x 17¹⁄₂" H x 13¹⁄₂"D for LHEC20 and
LHER20 or 28³⁄₄"W x 21"H x 15¹⁄₂"D for LHEC30 and
has been installed in accordance with the National,
Provincial/State and local building codes and is
constructed of noncombustible materials.
2. In order to gain minimum gas insert fireplace
opening requirement, if the fire brick refractory is
removed from a factory built fireplace, a minimum of
1/4" air space is required between the gas insert
fireplace's outer casing and the inner wall of the
factory built fireplace.
3. In order to obtain the best performance, safety and
efficiency for the gas insert fireplace, the LHEC30
gas insert must be installed with an approved 4"
diameter flue liner. The LHER20 and LHEC20
should be installed with an approved 3" diameter flue
liner as per current CSA-B149.1 or National Fuel
Gas Code ANSI Z223.1.
4. Any flue damper must be removed or blocked open.
5. The chimney must be clean and in good working
order and constructed of noncombustible materials.
6. Make sure that all chimney cleanouts fit properly so
air cannot leak into the chimney.
7. Install the appliance without trim frame and make all
gas fittings and electrical connections.
8. Install the decorative trim frame. Please refer to the
Frame Assembly instructions.
Installer must attach red warning plate
with screws supplied with the gas fireplace insert to the inside of the firebox of
the fireplace into which the gas fireplace
insert is installed.
Cutting any sheet metal parts of the
fireplace, in which the gas fireplace insert
is to be installed, is prohibited.
If the factory-built fireplace has no gas
access hole(s) provided, an access hole
of 1.5 inch (37.5mm) or less may be
drilled through the lower sides or bottom
of the firebox in a proper workmanshiplike manner. This access hole must be
plugged with a noncombustible insulation after the gas supply line has been
installed.
Fig. 8 For left side installation, reverse switch position in
bracket.
SIT Valve
Thermopile
FP382a
Fig. 9a On/Off switch or millivolt thermostat.
Honeywell Valve
TH
TP
TPTH
FP1218
Fig. 9b On/Off switch wiring.
THTP
TP
TH
P
I
L
T
O
CAUTION: Do not wire millivolt remote
wall switch for gas fireplace to a 120v
power supply.
FP1331
WARNING
Some factory-built fireplaces have air passages
on face of fireplace for zero clearance capabilities.
Under no circumstances should these passages
be blocked.
8
10005360
Vermont Castings, Majestic Products LHE Natural Vent Insert
Zero clearance kit minimum clearance to combustibles
materials is 1" (25mm) for B Vent (use of single wall
vent is not allowed.)
As with any natural drafted appliances, the vent cap
must always extend a minimum of 2' (610mm) above
any structure within a 10' (3m) horizontal plane. (Fig.
10)
0 To 10’
2’ Min.
3’
Min.
Reference
Point
AC246a
Fig. 10 Example of the 2', 3', 10' rule.
0 To 10’
(3m)
2’
(610mm)
Min.
3’
(914mm)
Min.
A minimum 12' (3.7m) vent height is
required to effectively vent these fireplaces.
If the fireplace lintel is wider than 8"
(205mm), the height of the fireplace
opening must be 25" (635mm) to allow for
a 90° offset elbow to be installed.
Damper
Draft
Hood
Clamp
Fig. 1 Remove flue collar plate and attach to flue collar.
Chimney Liner
Damper
Chimney
Liner
Screw
Clamp
ST1354
Draft Relief Opening
This insert is equipped with a draft-relief opening which
receives its dilution air supply through the opening at
the back of the insert. These openings must not be
obstructed or entered any way. (Fig. 12)
Common Flue Installations
In some areas it is possible to vent more than one gas
appliance into the same flue. You must ensure that the
flue being shared has the proper capacity to handle
both appliances. Check installation codes for venting
capacity information.
As always it is best to check with the authority having
jurisdiction prior to commencement of the installation.
Liner Installation
Insert liner from top of chimney through the damper
opening and attach to 3" flue collar for LHEC20 and
LHER20 and 4" flue collar for LHEC30. For best results
use three (3) sheet metal screws and a hose clamp.
For natural draft inserts, packing noncombustible
fiberglass insulation around the liner in the damper area
will isolate the fireplace cavity from the chimney and
prevent drafts and noises during operation.
In case the fireplace opening is only minimum height
(17¹⁄₄" (438mm) for LHEC20 and LHER20; 21" (533mm)
for LHEC30) and access from the front is not possible,
remove the flue collar plate - unscrew and slide out from
the back of the unit. Now attach the liner to the flue
collar, lift up and slide flue collar plate back onto the unit
top. It is important that the plate is completely inserted
and the front screw is fastened again in order to line up
the flue outlet and the liner properly. (Fig. 11)
Test Chimney Draw
1. A "Chimney Draw" test must be conducted before
the installation is complete.
2. Close all doors and windows in the home and start
exhaust fans in he kitchen and bathroom.
3. Light unit and operate for 5 minutes.
4. Hold an ignited match or cigarette in front of the unit.
Refer to drawing for the location of the draft hood
opening. (Fig. 12)
5. Check to make sure smoke from the match or
cigarette is drawn into the fireplace. If it is not, turn
the unit off and check for causes creating the lack of
adequate draft.
Test for draft at these two
openings.
FP1355
Fig. 12 Hold an ignited match in front of fireplace.
10005360
9
Loading...