LG B-VENTGAS INSTALLATION AND OPERATION MANUAL

  • Post last modified:April 30, 2023
  • Post category:Lennox

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LG B-VENTGAS INSTALLATION AND OPERATION MANUAL

LG B-VENT GAS featured img

B-Vent Gas Fireplace Insert
Retain These Instructions For Future Reference.

In the Commonwealth of Massachusetts:

  • Installation must be performed by a licensed plumber or gas fitter
  • See Commonwealth of Massachusetts requirements

WARNINGS

  • Hot! Do not touch! The glass and surfaces of this appliance will be hot during operation and will retain heat for a while after shutting off the appliance. Severe burns may result.
  • Carefully supervise children in the same room as appliance.
  • Suitable for installation into masonry or factory built fireplaces. These appliances 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. This appliance is not convertible for use with other gases unless a certified kit is used.
  • Lennox™ gas-burning appliances are designed for use as a supplemental heater. They are not intended for continuous use as a primary heat source.

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
Do not store or use gasoline or other flammable vapors or liquids in the vicinity of this or any other appliance.
WHAT TO DO IF YOU SMELL GAS:

  • DO NOT light any appliance.
  • DO NOT touch any electrical switches.
  • DO NOT use any phone in your building.
  • Immediately call your gas supplier from a neighbor’s phone. Follow your gas supplier’s instructions.
  • If your gas supplier cannot be reached, call the fire department.

Installation and service must be performed by a qualified installer, service agency or the gas supplier.

Cautions & Safety

  • FOR YOUR SAFETY do not install or operate your Firestar gas insert without first reading & understanding this manual. Any installation or operation of the appliance deviating from that which is stated in this manual WILL void the warranty & may be hazardous.
  • INSTALLATION & REPAIR SHOULD ONLY BE DONE BY A QUALIFIED SERVICE TECHNICIAN. DO NOT ATTEMPT TO SERVICE THE APPLIANCE YOURSELF.
  • The insert should be inspected & cleaned before use & at least annually by a qualified service technician. More frequent cleaning may be required due to excessive lint from bedding material, carpeting, etc.
  • It is imperative that control compartments, burners, & circulating air passageways of the room heater be kept clean.
  • Adequate clearances around the combustion chamber and accessibility clearances for servicing & proper operation must be maintained.
  • Turn off the gas before servicing this appliance. It is recommended that a qualified service technician perform an appliance check-up at the beginning of each
    heating season.
  • All installations must conform with all local, state, & national codes. In the absence of local codes, the installation must conform with National Fuel Gas Code ANSI
    Z223.1-latest edition, also known as NFPA 54. Refer to the National Fuel Gas Code & local zoning & code authorities for details on installation requirements. Your Firestar gas insert must be vented to the outside in accordance with the latest edition of the National Fuel Gas Code.
  • This gas insert MUST be vented directly to the outside & MUST NEVER be attached to a chimney serving a separate solid fuel burning appliance. Each gas appliance MUST USE a separate vent system. Common vent systems are PROHIBITED.
  • This appliance uses room air for combustion. It is imperative that provisions for adequate combustion and ventilation air be made. This appliance is NOT designed to and will not operate in a negative pressure. Contact your dealer if you suspect such a situation exists.
  • Mobile home installations must conform with the Mobile Home Construction and Safety Standard, Title 24 CFR, Part 3280, or, when such a standard is not applicable, the Standard for Mobile Home Installations, ANSI A22 5.1 – latest edition.
  • The appliance, when installed, must be electrically grounded in accordance with local codes or in the absence of local codes, with the National Electrical Code, ANSI/NFPA 70 – latest edition.
  • Your Lennox™ gas insert must be equipped for the proper fuel type & altitude at which it will be operated. Any operation outside the parameters outlined in this
    manual may result in a hazardous condition & will void the warranty. Please carefully read the sections pertaining to these subjects and/or be sure your appliance is properly equipped.
  • Do not use this insert if any part has been under water. Immediately call a qualified service technician to inspect the appliance & to replace any part of the control system & any gas control which has been under water.
  • Due to high temperatures, the insert should be located out of traffic areas & away from furniture & draperies.
  • Children & adults should be alerted to the hazards of high surface temperature & should stay away to avoid burns or clothing ignition. Young children should be
    carefully supervised when they are in the same room as the Lennox gas insert. Clothing or any other flammable material should not be placed on or near the insert.
  • Never use solid fuels such as wood, paper, cardboard, coal, or any flammable liquids, etc., in this appliance.
  • Any grill, panel, or glass removed for service MUST be replaced prior to operating the insert. Do not operate appliance with the glass front removed, cracked or
    broken. Replacement of the glass should be done by a qualified service technician.
  • DO NOT USE abrasive cleaner on the glass door assembly. DO NOT ATTEMPT to clean the glass door when it is hot.
  • Gold & nickel plated surfaces must be cleaned with glass cleaner & a clean soft cloth before firing the first time or fingerprints will remain permanently. NEVER use brass polish to clean gold or nickel, this will remove the plating!!!
  • When opening the lower door on the face while the insert is burning, pull at the far left or far right vent openings, because the door is hot during operation.
  • Lennox Hearth Products, its employees, or any of its representatives assume no responsibility for any damages caused by an inoperable, inadequate, or unsafe
    condition as a result of any improper operation, service or installation procedures, whether direct or indirect.
  • INSTALLER: THESE INSTRUCTIONS ARE TO REMAIN WITH THE HOME OWNER!

Orifice Size/Altitude Adjustment

For altitudes above 2,000 feet, the orifice should be de-rated by 4% for every 1,000 feet to maintain the proper ratio of gas to air. Improper orifice sizing may result in damage
and unsafe conditions. Changing the orifice should only be done by a qualified service technician. Contact your Lennox Hearth Products dealer for proper orifice sizes.

The Firestar™ Insert

  • Must conform with all local, state, and national installation codes. In the absence of local codes, the installation must conform with National Fuel Gas Code ANSI Z223.1 – latest edition, also known as NFPA 54. Refer to the National Fuel Gas Code and local zoning and code authorities for details on installation requirements.
  • Must conform with the Manufactured Home Construction and Safety Standard, Title 24 CFR, Part 3280, or when such a standard is not applicable, the Standard for Manufactured Home Installations, ANSI A225.1 – latest edition for manufactured (mobile) home installations.
  • Must be vented directly to the outside in accordance with the latest edition of the National Fuel Gas Code and must never be attached to a chimney serving a separate solid fuel burning appliance.
  • Uses room air for combustion. It is imperative that provisions for adequate combustion and ventilation air be made. This appliance is NOT designed to and will not operate in a negative pressure. Contact your dealer if you suspect
    such a situation exists.
  • Has been certified for use with either natural gas or propane.
  • Is not for use with solid fuels.
  • Is approved for sitting rooms and/or bedrooms.

Fireplace Requirements

These heaters are designed to be installed into an existing masonry fireplace (built to UBC 37 standards) or factory built solid fuel, wood burning fireplace (listed to UL 127 standards) only. All exhaust gases must be vented outside the structure. Combustion air is drawn from outside the structure. When installing in a factory built fireplace, the fireplace grate must be removed and the damper must be removed or secured open.

If the factory-built fireplace has no gas access hole(s) provided, an access hole of 1-1/2 inches (38 mm) or less may be drilled through the lower sides or bottom of the firebox
in a proper workmanship like manner. This access hole must be plugged with a non-combustible insulation after the gas supply line has been installed.

The installer must mechanically attach the marking supplied with the gas fireplace insert to the inside of the firebox of the fireplace into which the gas fireplace insert is installed.
IMPORTANT: When installing these appliances into a factory built fireplace or heat-form, the air flow within and around the fireplace shall not be altered by the installation of the insert (i.e. DO NOT BLOCK louvers or cooling air inlet or outlet ports, circulating air chambers in a steel fireplace liner or metal heat circulator).LG B-VENT GAS img 1

Codes & Approvals

Certification
Gas appliances must be tested and certified by a nationally recognized testing and certification laboratory to ANSI (American National Standard Institute) gas appliance safety standards.
This insert has been tested and certified by OMNI -Test Laboratories to ANSI Z21.88-2005 Standard for Vented Gas Fireplace Heaters and UL 307B Gas Burning Heating
Appliances for Manufactured (Mobile) Homes.
It has met all necessary ANSI Standards and is fully certified for installation in any community. If there are any questions or if you need further substantiation either write to or call your Lennox Hearth Products dealer. If you have further questions, please contact Lennox Hearth Products.

New York City, New York (MEA)
Installation of these fireplaces are approved for installation in New York City in the US state of New York (MEA#: 138-07-E).

Commonwealth Of Massachusetts Requirements Installation of these fireplaces are approved for installation in the US state of Massachusetts if the following additional requirements are met:

  • Installation and repair must be done by a plumber or gas fitter licensed in the Commonwealth of Massachusetts.
  • The flexible gas line connector used shall not exceed 36 inches (92 centimeters) in length.
  • The individual manual shut-off must be a T-handle type valve.

Pre-Installation

Installation Options:

Residential – Vented Vertical Only
Manufactured (Mobile) Home
Natural Gas Or Propane (LP)
Bedrooms
Optional Wall-mounted Or Remote Thermostat

Electrical:

The fan motor requires 120 Volts AC for operation. The fireplace is not dependent on the fan or an outside electrical supply to operate.

Millivolt Valve:

This insert is operated with a millivolt valve and therefore
burns even during a power outage.

Fuel:

This insert comes from the factory equipped to burn natural gas at a specified elevation. The insert can be converted to burn LP (liquid propane) by installing a conversion kit.
Only Lennox Hearth Products conversion kits can be used to convert from NG to LP or LP to NG. Contact your Lennox Hearth Products dealer for details.

Packaging List:
To install a Firestar insert, an insert body, and surround (flange) kit are required.

Insert Body Packaging List:

1 Insert Body with Burner Cassette and trivet
1 Set of Refractory Brick Panels – 3 pieces (H5866)
1 Log Set (H5860)
1 Lower front 2” filler panel
1 Fasteners: 6 slotted 1/4″ truss screws
-4 speed nuts
-6 spring clips
-4-3/8” x 3” leveling bolts
-2 socket head screws
1 Installation and Operation Manual

Surround Kits – One Required

2 9 X 41” Black Trim (75072)
2 9 X 48” Black Trim (75073)
33 X 41” Black Trim (75074)
33 X 48” Black Trim (75075)

Surround Kit Contents
1 Top Surround
2 Side Surrounds
3 Black Trim Pieces
2 Elbowed Trim Fasteners

RATINGS Firestar™ (GC3)
NATURAL GAS LP GAS
MAX/MIN INPUT BTUH 0-2,000 FT (0-610 M) *1 39,000/27,500 39,000/22,600
MANIFOLD PRESSURE (IN. WC) 1.7 – 3.5 3.5 – 10.0
MIN./MAX. INLET PRESSURE (IN. WC) 5.0 – 10.5 10.5 – 13.0
MAXIMUM HEAT OUTPUT BTUS/ HOUR “STEADY STATE” 31,200 31,200
ORIFICE (DMS) 0-2,000 FT (0-610 M)*1 #37 #52
*1) Unit factory equipped for 0-2000 FT/0-610 M

Insert Dimensions
See Figures 1, 2 and 3 showing insert dimensions and minimum
fireplace firebox dimensions to aid you in determining
proper fit into existing fireplace.LG B-VENT GAS img 2* Equipped from the factory with a 2” filler. Contact your dealer for additional information.

Figure 1LG B-VENT GAS img 3

Figure 2

Insert Dimensions

Width of insert behind Surround Panels 26-3/4”
Rear height 18-7/8”
Insert depth into fireplace 13-5/8”
Flue center line from back of surround with standard draft hood 11-3/8”
Flue collar diameter (OD) 3-15/16”

Figure 3 LG B-VENT GAS img 4

Minimum Fireplace Opening Required
A = 29-3/4” Front Opening
B = 19” Height
C = 19” Rear Width
D = 15-1/4” Fireplace Depth

CAUTIONS

  • The fireplace in which this gas insert is to be installed must be thoroughly cleaned if it has been used to burn wood or synthetic logs. Have the chimney and all inside surfaces of the fireplace brushed and vacuumed so that no soot, embers, or loose combustion deposits can be drawn into the heat circulation blower and blown
    into the living area.
  • If any portion of the chimney system shows signs of structural or mechanical weaknesses, such as: cracks, leaky joints, corroded or warped surfaces, the faulty portion must be repaired or replaced prior to installing this appliance.
  • The factory built firebox must accept the insert without modification other than removing bolted or screwed together pieces such as baffles / smoke shelf / deflectors, ash lips, glass door, screen or door tracks, log grates, refractory or masonry lining and damper assemblies. Any fireplace component, which is removed, must be retained so they can be reinstalled to restore the fireplace to its original operating condition. The removal of any part must not alter the integrity
    of the outer shell of the pre-engineered fireplace cabinet in any way. Any parts removed must be replaceable. If any components are removed from (or altered) from the existing fireplace, a Warning Label (see Page 4) must be affixed inside the fireplace firebox, so that it shall be visible upon removal of the fireplace insert. Note: RTV high temperature silicone is an approved adhesive to affix the label.

Minimum Clearances to Combustibles
The letters below, C through H, correspond to Figure 4 showing minimum clearances required from the appliance to combustibles and the minimum projection of the hearth
extension.
C = 6.5” to Side Facing (3/4” or less)
D = 11” to Side Wall
E = 24” to Mantel** (more than 3/4”)
F = 14.5” to Top Facing (maximum thickness 3/4”) LG B-VENT GAS img 5

Hearth Protection
G = Minimum Hearth Protection from Front of Insert*
H = Vertical Distance from Insert Bottom to Combustible Material.

G

23”

20” 17” 0”
H 0” 2” 4”

6”

(*Insert bottom is the metal lip below the lower gold trim bar).
Note: Hearth protection to be min. 3/8” (10mm) thick noncombustible or equivalent, with a k factor of .84.

Insert Leveling
The FireStar insert comes with four 3/8”X 3” leveling bolts (two for use at the rear and two at the front of the insert). The two at the rear can be used to raise the back of the insert resting on the fireplace hearth. The two at the front can be used to adjust the front of the insert on the hearth extension. To install the bolts a 3/8” nut should be threaded onto the bolt, followed by a 3/8” flat washer. The bolt should then be installed from the under side of the insert into the captive nut in the bottom of the insert. When the bolt is adjusted to the proper height the nut previously threaded onto the bolt can be snugged up to the insert bottom.

**The minimum distance from the top of the insert to a combustible may be reduced to 16” with a mantel shield. The shield should be made from 18-gage or thicker sheet
metal, 7” by 33”. The shield must be centered over the insert and spaced one inch below the mantel. The shield can be fastened to and spaced from the mantel using four to six screws.

Installation

Insert Venting
Refer to Figure 6 which shows a typical installation of this appliance into an existing solid-fuel fireplace.

Warning: This appliance is equipped with a safety control system designed to protect against improper venting of combustion products. Operation of this heater when not connected to a properly installed and maintained venting system or tampering with the blocked vent shut-off system can result in carbon monoxide (CO) poisoning and possible death.

Insert must be vented to the outside in accordance with the current edition of the National Fuel Gas Code ANSI-Z223.1-latest edition, also known as NFPA 54. The insert must not be connected to a chimney flue serving a separate solid fuel burning appliance.

This gas insert requires a 4” diameter B-vent or listed flex aluminum or stainless chimney liner extending the entire length of the chimney to ensure proper operation. The vent should terminate with a chimney cap or rain cap. Chimney should be sealed around cap to prevent air and rain from entering chimney. Adhere to vent manufacturer’s instructions for installation and vent termination.

A minimum flue height of 12 feet is recommended.

The insert must be installed so the draft hood is in the same atmospheric pressure zone as the combustion air inlet to the appliance.

Flue Collar Connection
This insert has a detachable flue collar to ease installation. To detach flue collar lift removable vent (trivet) from top of insert, unscrew draft tube retaining screw (see Figure 5) and slide draft tube and flue collar to the rear. Attach flue collar (with 3 sheet
metal screws or a B-vent connector) to vent pipe previously installed in chimney. As the insert is pushed into fireplace guide draft tube and flue collar into guide brackets until draft tube retaining screw can be reinstalled in its original hole.

Figure 5LG B-VENT GAS img 6

Figure 6LG B-VENT GAS img 7

WARNING
Do not substitute the heat-rated flex liner (UL1777 or ULC S635) for the exhaust with any other type liner or a fire may result causing property damage, personal injury or loss of life.

The following vent liner kits are available from Lennox Hearth Products (see Figure 7 and table below).

Figure 6LG B-VENT GAS img 8

VENT KITS

Cat. #

Model

Description

H0906

VKBVI25 BVI, 4″ Dia. x 25’ Length
H0907 VKBVI35

BVI, 4″ Dia. x 35’ Length

Zero Clearance Fireplace Installation
This insert may be installed in a masonry or factory built/zero clearance (ZC) fireplace. When installing in a ZC fireplace, the ZC grate must be removed and the ZC damper must be removed or secured open. The ZC doors, screen, refractory or masonry lining, baffles, and smoke shelf may be removed, if necessary, to install the gas insert. However, do not cut or alter the fireplace components. The removal of any parts to facilitate installation must not alter the integrity of the inner or outer shells of the fireplace cabinet.

Brick Liner Installation
HANDLE THE BRICK PANELS WITH CARE (SEE FIGURE 8) AS THEY ARE FRAGILE. DO NOT FORCE THE PANELS INTO THE FIREBOX AS THEY WILL BREAK IF FORCED.

  1. Open and remove glass door, see “Front Door Removal”
  2. The longest panel goes in the rear of the firebox. Tilt the top of the panel forward, insert the bottom of the panel in the brick panel retainer and push the panel to the upright position.
  3. Install the side panels by sliding the top of the panel into the top side brick retainer and then dropping the bottom of the panel into the bottom retainer. The rounded edge on the side brick panels goes toward the front.

Figure 8LG B-VENT GAS img 9Log Installation Instructions
CAUTION: If the logs are not properly installed, your insert will not function properly.
Part list: Rear log, Right Front log, Left Front log, and Top Twig

  1. Remove the logs from the box and carefully unwrap them. The logs are fragile, so handle them with care.
  2. Place the rear log with the charred surface forward, on the two rear locating pins (see Figure 9).
  3. Place the left front log, with the charred surface forward, (see Figure 10) on the two left front locating pins. Next place the right front log, with the charred surface forward, on the two right front locating pins. LG B-VENT GAS img 10Log Installation Continued (GC3)
  4. Position the top twig, with the charred end forward, on the pin in the top of the rear log and the pin in the top of the right front log (see Figure 11).
  5. Place the volcanic stone one high in front of the front burner tube (see Figure 12). Take care not to cover all the burners ports. Any extra volcanic stone may be placed at the ends of the front logs, off the burner. Place small pinches of rockwool (embers) on top of the volcanic stone. LG B-VENT GAS img 11 LG B-VENT GAS img 12

Install per the following instructions (refer to Figure 13).
The FireStar  insert flanges are made of heavy 12 gage steel for durability and, if desirable, for the ease of making an inside fit in the fireplace. See “Packaging List” for sizes available. The side flanges extend 2” below the bottom of the insert and align with the 2” lower filler panel. In those few instances when the elevation of the hearth necessitates, 2” can be cut from the bottom of the side flanges and the insert placed directly on the hearth- not using the leveling bolts or filler panel.

  1. Remove the speed nuts from the parts bag and install (with the flat surface forward) on the six holes in the flange brackets (three on each side of the insert). A flat bladed screwdriver may help in installing the nuts.
  2. Install all flanges and trim with the insert positioned in the fireplace but a few inches in front of its final location.
  3. Open side doors and install the side flanges by lining up the holes in the tabs on the side flanges in front of the holes on the flange brackets. (Note that the larger tab on side flange goes at the bottom and the front leveling bolts need to be raised to at least two inches to accommodate the length of the side flanges). Next insert two slotted 1/4” truss screws for each side flange and secure loosely.
  4. Fasten top flange with the remaining two truss screws. Tighten all six truss screws after shifting flanges to eliminate space between side and top flanges.
  5. Install two spring clips approximately five inches from each end of each of the three gold trim pieces. The spring clips should be installed in the channel of the trim with the curved end to the front toward the rounded surface of the trim.
  6. Place the longest trim piece with the rounded surface out along the edge of the top flange with the spring clips slightly behind the flange. Pull the trim forward, compressing the spring clips, and slide the trim down onto the flange.
  7. Insert the elbowed retainer in the mitred end of the side trim pieces and fasten with flat screwdriver. Insert the other end of the retainer in the end of the already installed top flange and slide side trim onto the edge of the side flange compressing spring clips in the process. Repeat the same steps for the other side trim. Fasten the elbowed retainer securely in the top flange making a nice mitred corner. LG B-VENT GAS img 13

Lower Front 2” Filler Panel
The FireStar insert comes with a 2” panel to fill the space between the insert bottom and the hearth extension. If the hearth elevations necessitate, the insert may be installed directly on the hearth without the leveling bolts or filler panel. To install the panel, insert the four tabs on the top of the panel into the corresponding slots in the insert bottom. Open the insert side doors, remove the two socket head screws from the hardware bag and install them (using a 5/32” hex wrench) through the insert bottom into the filler panel. A tall adjustable filler panel is also available.

Gas Line Installation
After leveling, position the insert in the fireplace, holding it about six inches out from its final location.

Caution: Specific Hearth Requirements apply (see Clearances and Specifications). The Firestar gas insert must be connected to the gas line in accordance with local codes and / or the National Fuel Gas Code, Z223.1-latest edition, also known as NFPA 54. Included in the manual package is an 8″ gas nipple. Locate the threaded gas inlet on the lower left of the insert. Thread the 8″ gas nipple into the inlet with a teflon sealer or equivalent. Attach the gas supply line to this hard pipe. The hard pipe can receive a 3/8” inch female iron pipe coupling, or a shut off valve. After connecting the gas line, all joints in the line and connections at the valve should be checked for leaks.

Gas Pressure Requirements
A MAJOR CAUSE OF OPERATING PROBLEMS WITH GAS APPLIANCES IS IMPROPER GAS PRESSURE!
The most important item to check during the initial installation and the first thing to check when operating problems occur is gas pressure! This appliance will not function properly unless the required gas pressure is supplied. See Table 1 for gas pressure requirements.

Two pressure taps are provided on the insert’s valve to check gas pressures. The taps are located below the on/off/pilot knob (see Figure 14). The left tap is the inlet (supply) pressure side. To check inlet pressure (with the insert burning), insert a small phillips screwdriver into the tap and turn a half turn counterclockwise. Cover the tap with the line from a manometer and check the pressure. Close tap gently but securely after completing the check. The manifold (outlet) tap is to the right of the inlet tap. To check manifold pressure (with the insert burning at the high burn setting) insert a small
phillips screwdriver into the tap and turn a half turn counter-clockwise. Cover the tap with the line from the manometer and check the pressure. Again close the tap gently but securely after completing the check. Check the taps for gas leaks with a gas leak test solution (retighten if necessary).LG B-VENT GAS img 14

If the pressure is not sufficient, make sure the gas supply line is large enough, the supply regulator is properly adjusted, and the total gas load for the residence does not exceed the amount supplied. 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 test pressures in excess of 1/2 psig. 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. Check with your gas supplier or plumber.

Fuel Type

Inlet Pressure Manifold Pressure
Desired Minimum Maximum On Hi Fire

On Lo Fire

Natural Gas

7″ WC 5″ WC 10.5″ WC 3.5″ WC 1.7″ WC
LP Gas 11″ WC 10.5″ WC 13″ WC 10.0″ WC

5.4” WC

Table 1

Gas Supply Line Sizing

The proper gas line diameter must be selected to run from the supply regulator to the insert. Refer to the Table 2 for proper gas pipe diameters.

NOTE: Some areas allow copper tubing – check with local approval agencies and codes.

COPPER TUBING NOT ALLOWED IN MASSACHUSETTS IN NATURAL GAS INSTALLATIONS, NEVER USE GALVANIZED OR PLASTIC PIPES.

Pipe Length (Feet from Supply Regulator)

Schedule 40 Pipe Inside Diameter (Black Pipe)

Tubing, Type L Outside Diameter (Copper)

(Do Not Use Copper in Massachusetts with Natural Gas)

Natural Gas

L.P. Natural Gas

L.P.

0-10

1/2

(1.3 cm)

3/8

(1.0 cm)

1/2

(1.3 cm)

3/8

(1.0 cm)

 

10-40

1/2

(1.3 cm)

1/2

(1.3 cm)

5/8

(1.6 cm)

1/2

(1.3 cm)

40-100

1/2

(1.3 cm)

1/2

(1.3 cm)

3/4

(2.0 cm)

1/2

(1.3 cm)

 

100-150

3/4

(2.0 cm)

1/2

(1.3 cm)

7/8

(2.3 cm)

3/4

(2.0 cm)

150-200

3/4

(2.0 cm)

1/2

(1.3 cm)

7/8

(2.3 cm)

3/4

(2.0 cm)

Table 2

Propane (LP) and Natural Gas Supplies
Your Firestar gas insert is equipped from the factory for use with natural gas only as specified on the Safety / Listing label attached to the appliance. This appliance can only be

operated using propane gas (LP) if a certified fuel conversion kit provided by Lennox Hearth Products is installed by a qualified service technician.
Also check the orifice size on the label attached to your control panel. It must be the correct size for the fuel and altitude.

Do not run propane tank dry. Running the tank dry may cause a hazardous condition due to pressure drop in empty tank.

Solid fuel is NOT to be used with this unit.

Air Shutter Adjustment
The main burner has an adjustable air shutter located at the end of the burner as it inserts over the orifice. It is located behind the right side door and beneath the control
valve. The shutter adjustment has been set at the factory to ensure proper, safe combustion and flame pattern. Only a qualified gas technician should adjust the air shutter as an incorrect adjustment could cause a hazardous condition. Closing the air shutter will cause the flames to take on a yellow color. Closing it too far will cause improper burning and the flames will turn orange and sooty. Opening the air shutter will cause the flames to burn cleaner; becoming transparent and bluish.

Caution: The air shutter should never be closed to such an extent to create sooting on the viewing glass, logs or heat exchanger. If soot begins to form after burning, the air shutter should be opened gradually until the sooting condition stops. Open the shutter a small amount at a time until the sooting ceases. See “Flame Color and Behavior” and “Maintenance”, proper pilot flame.

  1. Remove glass door. Carefully remove the log set and set aside.
  2. Using a 5/32” allen wrench, remove the allen-head screw on the left side of the air control panel as shown in Figure 15a, then lift out air control panel as shown in Figure 15b.
  3. Using a 5/32” allen wrench, remove the screw which secures burner tube assembly as shown in Figure 15c. Then lift out burner tube assembly as shown in Figure 15d.
  4. Using a phillips screwdriver, loosen the air shutter setscrew just enough so air shutter can be rotated by hand (read note below). See Figures 15e and 15f.
  5. Reinstall components by reversing steps 1 – 4.
  6. Locate the air shutter, behind the right side access door (below valve), then adjust the air shutter gap until the proper flame characteristics are achieved.

Note: The setscrew for the air shutter is secured tightly from the factory so that it does not rotate from the factory setting during shipping. Once you loosen the setscrew just
enough so that it can be rotated by hand, then reinstall the burner tube, you will be able to access and adjust the air shutter from behind the right side panel (below valve). LG B-VENT GAS img 15 LG B-VENT GAS img 16LG B-VENT GAS img 17

Operating Instructions

Pre-Lighting Checklist
Be sure to check these items before the initial lighting of the insert:
– All packaging materials are removed from the firebox; brick panels and logs are installed.
– The insert gas label must correspond to the gas supply available, that is “natural gas” for natural gas; “LP gas” for LP gas.
– Be sure the gas pressure has been carefully checked (see Gas Pressure Requirements).
– Fingerprints or other marks are cleaned (while the insert is cool) from any gold or nickel surfaces with denatured alcohol and a soft cloth. Marks left on these surfaces may become etched into the finish if not removed prior to burning the unit.
– Check all gas fittings for leaks.
– Remove all combustible materials from the area in front of the insert and ensure the vented areas of the insert face are unobstructed.
– Check to ensure all clearances to combustibles are met.
– Make sure the glass door is in place and properly sealed before burning the appliance
– Ventilate the house to clear initial paint curing odors.

Lighting Instructions
The following is a copy of the operating and lighting instructions found with each insert:

FOR YOUR SAFETY READ BEFORE OPERATING

WARNING: IF YOU DO NOT FOLLOW THESE INSTRUCTIONS EXACTLY, A FIRE OR EXPLOSION MAY RESULT CAUSING PROPERTY DAMAGE, INJURY, OR LOSS OF LIFE.
CAUTION: HOT WHILE IN OPERATION. DO NOT TOUCH. KEEP CHILDREN, FURNITURE, GASOLINE, AND OTHER LIQUIDS WITH FLAMMABLE VAPORS AWAY. NEVER OPERATE UNIT WITH GLASS OFF OR ATTEMPT TO REMOVE THE GLASS WHILE HOT.

  1. This appliance is equipped with a piezo ignition device to light the pilot. When lighting the pilot, follow these instructions exactly.
  2. BEFORE LIGHTING, smell around the appliance area for gas. Be sure to smell next to the floor, because some gas is heavier than air and will settle on the floor. WHAT TO DO IF YOU SMELL GAS:
    DO NOT try to light the appliance.
    DO NOT touch any electric switch.
    DO NOT use any phone in the building. Immediately call your gas supplier from a neighbor’s phone. Follow the gas supplier’s instructions. If you cannot reach your gas supplier, call the fire department.
  3. Use only your hand to push in or turn the gas control knob. Never use any tool. If the knob will not push in or turn by hand, don’t try to repair it, call a qualified service technician. Force or attempted repair may result in a fire or explosion.
  4. DO NOT use this appliance if any part has been under water. Immediately call a qualified service technician to inspect the appliance and to replace any part of the control system and any gas control which has been under water.

OPERATING INSTRUCTIONS
(Refer to controls shown in Figure 16)
CAUTION: Your Lenno gas INSERT MUST ALWAYS BE OPERATED WITH GLASS IN PLACE.
STOP!! Read the safety information above before proceeding.

  1. Open the lower door. Make sure gas supply shut-off cocks are open and ON/OFF rocker switch is “OFF.” If equipped with a thermostat, set it to the lowest setting.
  2. Turn off all electrical power to the appliance.
  3. Push in gas cock dial slightly and turn clockwise to “OFF.”
    NOTE: Dial cannot be turned from “PILOT” to “OFF” unless dial is pushed in slightly. Do not force.
  4. Wait five minutes to clear out any gas. Then smell for gas, including near the floor. If you smell gas, STOP! Follow “B” above. If you don’t smell gas continue.
  5. Locate the pilot by looking over the top of the left front log. A blue flame will be seen when the pilot is lit.
  6. Turn the gas control knob counter-clockwise to the “PILOT” position.
  7. Push the knob all the way in and hold in that position. Immediately light the pilot by pressing the igniter button several times until pilot is lit. Continue to hold the knob in for about 30 seconds after the pilot is lit. Release knob and it will pop back out. Pilot should remain lit. If it goes out, repeat steps 4-8 holding knob in an additional 15 seconds after pilot is lit. If knob does not pop out when released, stop and immediately call your service technician or gas supplier. If the pilot will not stay lit after several tries, turn the gas control knob to “OFF” and call your service technician or your gas supplier.
  8. After pilot is lit, turn gas control knob counter-clockwise to “ON.” Knob can only be turned to “ON” if the knob has popped out.
  9. To turn burner on, turn “ON/OFF” rocker switch to “ON” or set the thermostat to the desired temperature above room temperature.
  10. Adjust the flame height (and heat output) by turning the flame height knob clockwise for full flame and counter-clockwise for reduced flame.
  11. Turn on the electric power to the appliance and set the blower to the desired air flow after it turns on when the appliance reaches operating temperature.

TO TURN OFF GAS TO APPLIANCE
(Refer to controls shown in Figure 16)

  1. Turn off the “ON/OFF” rocker switch and/or thermostat (if installed) to its lowest setting.
  2. Turn off electric power to the appliance if service is to be performed.
  3. Push in gas control knob slightly and turn clockwise to “OFF.” Do not force.

This appliance needs fresh air for safe operation and must be installed so there are provisions for adequate combustion and ventilation air.
WARNING: Improper installation, adjustment, alteration, service, or maintenance can cause injury or property damage. For assistance or additional information, consult a
qualified installer, service agency, or your gas supplier. Operation of this appliance when not connected to a properly installed and maintained venting system can result in carbon monoxide (CO) poisoning and possible death.

SHUTDOWN PROCEDURE
To turn off the burner, turn the rocker switch to “OFF” or adjust the thermostat (if installed) to a setting below room temperature. The pilot will remain lit for future burner ignition. For complete shutdown, see “TO TURN OFF GAS TO APPLIANCE” above. LG B-VENT GAS img 18Flame Color & Behavior
Your Firestar gas insert is designed for maximum heating efficiency. Therefore, upon lighting of the main burner the flames will be semi-transparent or “bluish.” After 10-20
minutes of operation the logs will heat up and the flames will become a yellow/orange color. Adjusting the insert to cause the flames to turn orange sooner may result in poor combustion, sooting, and a hazardous situation. See Figure 17 showing proper flame appearance. LG B-VENT GAS img 19Figure 17

Replacing Burner Orifices
To change orifices, first remove the cassette (see Fuel Conversion and Cassette Installation on page 19). Then unscrew orifice using an 3/4” open end wrench, discard the old orifice and reinstall the new orifice.
REDUCING THE ORIFICE SIZE FOR HIGHER ALTITUDES MAINTAINS THE PROPER BTU INPUT TO AIR RATIO. TOO LARGE AN ORIFICE WILL RESULT IN HIGHER BTU INPUTS THAN THE DESIGN ALLOWS, MAY RESULT IN AN UNSAFE
CONDITION AND MAY VOID YOUR WARRANTY.
For altitudes above 2,000 ft. (610M) the appliance should be derated by four (4%) percent every 1,000 ft. (305M). To operate safely, your Firestar gas insert must have the proper burner orifice size determined by the altitude at which it will be operated and other variables such as pressure and valve tolerances. If you have reason to believe
your insert’s orifice size may be incorrect for your altitude, have it checked and remedied (if necessary) by a qualified service technician.

Paint Curing
This insert has been painted with Stove bright high temperature metallic stove paint. It leaves the factory dry to the touch, but finishes curing as the insert is used. Fire the
insert four successive times for ten minutes each time with a five minute cool down between each firing. Ventilate the house during these first firings as the paint gives off carbon dioxide and unpleasant odors. It is recommended that persons sensitive to an imbalance in the indoor air quality avoid the insert during the curing process.

Quiet Operation

GAS NOISE: The sound of gas flowing through the insert may be detectable while the unit is in operation. This is a normal operating sound, however if it is objectionable, it
can be reduced by turning down the flame. Turning down the flame will reduce heat output.
BLOWER NOISE: As the insert heats up, the blower will come on to move hot air through the heat exchanger and into the room. Adjust the fan speed with the fan control knob to the sound level and air flow desired.

Blower
Your Firestar gas insert comes equipped with a 150 CFM lower with a variable speed control and an automatic temperature activated On / Off snap switch.

Operation:

  1. Plug the blower power cord into a grounded (three prong) outlet. This appliance is equipped with a three prong (grounding) plug for your protection against shock hazard and should be plugged directly into a properly grounded three – prong receptacle. Do not cut or remove the grounding prong from this plug.
  2. After the insert warms up, the fan will come on if the speed control (located at the bottom of the left side door) is left in the on position. The fan will not operate until the insert is warm.
  3. Once the fan comes on, turn the knob to the desired speed. No further adjustment is necessary, the fan will come on automatically whenever the insert is warm.
  4. If you do not wish to have the fan on, turn the knob until it clicks into the OFF position.

“On-Off” Switch And Thermostat
Your gas insert comes equipped with an “ON-OFF” rocker switch used to turn the burner on and off while the pilot is on. The switch is located behind the right side door to the right of the control valve. This switch can be relocated to the hole provided in the top surround panel by pulling the two connectors off of the spades on the back of the switch. Then unscrew the plastic nut on the back side of the switch and pull the switch forward through the hole. Cut the wire tie holding the switch wire and feed the wire behind the side flange up to the switch hole in the top flange. Care must be taken to ensure the wire is kept away from the heat of the firebox. Reinsert the switch in the hole in the flange, tighten the retaining nut, and push the wire connectors back on the spades. The spades may need to be carefully bent downward to provide clearance between the switch and the fireplace facing material.

A millivolt wall thermostat or remote thermostat can be used to supplement the rocker switch. The thermostat and rocker switch will turn the burner on and off independently of each other. Be sure to set the rocker switch to the off position when using the thermostat and set the thermostat to the lowest temperature when you wish to use the rocker switch only, otherwise one may override the other.

Follow the instructions included with the thermostat for wiring. Solder all connections, as good wire connections are critical in millivolt system. Check with your insert dealer for the proper length and size of the thermostat wire. Both factors effect the function of the thermostat.

Pilot Adjustment
All pilots are burned and checked at the factory prior to shipment. (NOTE: If upon initial insert installation the pilot flame flickers or will not remain lit, most likely the pilot is fine but there is air in the gas line or the gas pressure is too low). Pilot adjustment is not normally required, but should it be necessary, it should be done only by a qualified service technician. The pilot adjustment screw is located to the left of the ON/OFF/PILOT control knob. With a flat bladed screwdriver, remove the pilot adjusting cover to access the pilot adjusting screw. Adjust pilot screw to the properly sized flame as shown in Figure 18. The flames should completely surround the thermopile and extend across the main burner ports. Be careful not to back the adjusting screw out of its threads. Replace the cover and check for gas leaks. LG B-VENT GAS img 20Figure 18

Do not splice any millivolt wires. Refer to Table 3 to determine the proper gage of wire for the thermostat or wall switch connections. This table refers to the total length of the wire (out to the switch and back). The thermostat must be a millivolt type. A 24-volt furnace thermostat will not work. Never hook up household current, 120 Volts, to the millivolt system. It is not recommended to hook up any more than two switches to the insert (for example a rocker switch and a wall thermostat). Additional switches may affect the system resistance and increase the chance of the burner not igniting. Follow the instructions included with the thermostat or remote control for wiring.

The thermostat, remote control, and rocker switch will turn the burner on and off independently. Be sure to set the rocker switch to the “OFF” position when using the thermostat or remote control and set the thermostat or remote control to the lowest temperature when you wish to use the rocker switch only, otherwise one may override the other. If a remote thermostat is to be used with the insert, do not place
the receiver under the firebox.

Thermostat Wire

Wire Size

Maximum Length

12 Gage

100 Feet
14 Gage

64 Feet

16 Gage

40 Feet
18 Gage

25 Feet

20 Gage

16 Feet

Table 3

Millivolt Wiring Diagram LG B-VENT GAS img 21Figure 19

Maintenance & Servicing

Maintenance Checklist
Should Only Be Performed by a Qualified Service Technician.
Caution: Label all wires prior to disconnection when servicing controls. Wiring errors can cause improper and dangerous operation. Verify proper operation after servicing.

  1.  Annual inspection should be made and the following checks performed:
    – With unit cool, remove glass and inspect burner for dirt, soot, and lint accumulations and remove if necessary.
    If excessive soot accumulation is present on burner, have a qualified serviceman adjust burner for proper combustion.
    – Clean any deposits from inside glass with gas fireplace glass cleaner. NEVER attempt to remove or clean glass when the unit is hot.
    – Check that chimney and its outlet are open and free from soot, blockage, or debris.
    – Inspect the pilot system for proper flame. See instructions on.
    – Check the Millivolt system as per Table 4.
    – The appliance area must be kept clear and free of combustible materials, gasoline, and other flammable vapors and liquids.
    – Check glass gaskets once a year. Gaskets must be tight. Replace if necessary.
  2. The viewing glass should be cleaned periodically (see Glass Maintenance).

Glass Maintenance
Cleaning: When cool, the glass may be cleaned with a clean, soft cloth and Windex. For cleaning white condensation from the interior glass, use KEL KEM gas fireplace glass cleaner available from your insert dealer. Use of caustic or abrasive cleaners may damage the glass. DO NOT operate the insert with broken glass. DO NOT clean door or glass when hot. DO NOT abuse the glass door by striking or slamming it shut. DO NOT use substitute materials if replacing the glass. DO NOT spray commercial glass cleaner with ammonia on the door and glass gasket as it may dissolve the gasket glue.
Replacement: The glass in the insert door cannot be replaced separately. Should the glass be damaged, the entire glass, gasket, and metal frame assembly must be replaced as a unit. This replacement glass assembly is available from your Lennox Hearth Products dealer. The glass is neo-ceramic and alternative types must not be used.

WARNING: Do not operate appliance with the glass panel removed, cracked, or broken. Do not remove glass door while the insert is hot. Replacement of the glass door
should be done by a qualified service technician.

Glass Door Removal (refer to Figures 20a and 20b)
Caution: Do not slam or strike glass door or damage may occur.
Do not remove the glass door while the insert is hot. Open both latches on the right and left side of the door (they are centered on the sides of the front door – see Figure 20a). With the latches released, rotate the catch part of each latch outward away from the front door. The door will pivot toward you from the top (hinging from the bottom as shown in Figure 20b). On the bottom of the door there are tabs that slide into slots on the firebox. Disengage the tabs on the door from the slots on the firebox by lifting up on the door until it stops and slide the door all the way to the left. You can then remove the door straight out from the slots. To reinstall door reverse the steps above. LG B-VENT GAS img 22

Figure 20a

LG B-VENT GAS img 23

Figure 20b

To remove the front door open the side doors, release the front door latches on either side and rotate the top of the glass door forward and down until it stops. Once it is all
the way open, lift it slightly, move it to the left and pull it away from the insert. Place door on a nonabrasive surface being careful not to damage door or glass. When cooled the exterior glass may be cleaned with a clean, soft cloth and windex. For cleaning white condensation from the interior glass use KEL KEM gas fireplace glass cleaner available
from your insert dealer. Use of caustic or abrasive cleaners may damage glass.

NOTE: BE CAREFUL NOT TO SPRAY COMMERCIAL GLASS CLEANER WITH AMMONIA ON GASKET AREA OF DOOR.
AMMONIA WILL DISSOLVE GASKET GLUE.

NOTE: GOLD PLATED SURFACE MUST BE CLEANED WITH GLASS CLEANER AND SOFT RAG BEFORE FIRING THE FIRST TIME OR FINGER PRINTS AND STAINS WILL REMAIN PERMANENTLY. NEVER USE BRASS POLISH TO CLEAN GOLD, THIS WILL REMOVE GOLD PLATING!

Front door glass replacement should be completed only by a qualified technician.

Glass Door Cleaning And Repair

Cleaning: Do not remove or clean the glass door when hot. A gas door glass cleaner (available from your Lennox Hearth Products dealer) or windex should be used with a soft cloth to clean the glass. Do not use an abrasive cleaner.
Repair: If the glass is broken in the glass door, the entire door (metal frame, gasket, and glass) should be replaced as a unit. This replacement unit is available from your Lennox Hearth Products dealer. Do not use substitute parts or materials.

Caution: Do not operate this insert with broken glass.

Blower Wiring Diagram LG B-VENT GAS img 24

Blower Removal
Unplug the power supply cord from the electrical outlet prior to removing the blower. The fan can be accessed through the back wall of the firebox. Caution: Label all wires prior to disconnection when servicing controls. Wiring errors can cause improper and dangerous operation. Verify proper operation after servicing. See the fan-wiring diagram below for reference. Remove the glass door, log set, and brick panels. All of these items are fragile so handle them with care. Remove the two allen-head screws at the left and right front of the air control panel and lift the panel out. Next, remove the nine allen-head screws around the outside of the panel fastened to the back wall of the firebox. Rotate the top of this panel toward the front, remove the two wires connected to the fan, and then lift the panel with the fan attached out of the firebox. To reinstall the fan, repeat these steps in the reverse order.

Electrical requirements
This gas insert operates without an outside power source, however the fan/blower requires a 120 Volt electrical service outlet. The blower must be electrically grounded in accordance with local codes. In the absence of local grounding codes, the National Electrical Code ANSI/ NFPA 70 – latest edition. The blower is equipped with a three pronged (grounding) plug for your protection against electrical shock hazard and should only be plugged into a properly grounded three prong receptacle. DO NOT CUT OR REMOVE THE GROUNDING PRONG FROM THE PLUG FOR ANY REASON!

  • See Millivolt Control Schematic (Figure 19) for information on thermostat and On/ Off switch.
  • See Blower Wiring Diagram (Figure 21) for information on the wiring and electrical requirements for the blower.

Fuel Conversion & Cassette Installation
Converting your FireStar gas insert between natural gas and LP can be accomplished by either changing the Quick Change Cassette (valve and pilot assembly) or installing a conversion kit (regulator, burner orifice and pilot orifice). Only a qualified service technician should perform the conversion, as it requires disconnecting the gas supply line and other procedures that should only be performed by a qualified technician.

Cassette Removal

  1. Be sure the gas supply is off and fan power cord is disconnected before beginning the conversion. Disconnect the gas supply from the insert being careful not to apply pressure to the valve in the process.
  2. Remove the log set and brick panels, (see “Brick Panel & Log Installation)
  3. Remove the burner by lifting the left end and pulling the burner gently through the block plate and past the pilot assembly.
  4. Disconnect at the valve the two wire connectors from vent safety snap switch (the uppermost black wire on terminal 1 and the black wire with the round connector located at the top of the valve and behind the gas inlet elbow). Then disconnect
    the thermostat (red and white wires) and rocker switch (black wires) at terminals #1 & 3.
  5. Remove the socket head screw attaching the cassette/body block plate and block plate located in the bottom right end of the firebox.
  6. Remove the socket head screw fastening the pilot end of the cassette to the burner holder.
  7. Remove the three socket head screws holding the cassette (valve/pilot assembly) to the body of the insert.
  8. The cassette can now be removed by rotating the valve forward and out to the right.
  9. Install new, converted or serviced cassette in the reverse order of removal. All parts and wires must be correctly reinstalled to ensure safe and proper operation of the unit.

Conversion Kit
Please see instructions provided with conversion kit.

Troubleshooting

NOTE: When troubleshooting the gas control system, be sure the external gas shut off valve, located at the gas supply inlet is in the “ON” position.
IMPORTANT: Call your gas supplier or plumber for additional help with any gas control problem. Valve system troubleshooting should only be accomplished by a qualified service technician.

SYMPTOM

PROBABLE CAUSE

CORRECTIVE ACTION

Thin black coating (soot) 1) Improper log or 1) See Log Set Installation on Pages 9 & 10. If there is soot in one specific location, the
forms on the viewing ember placement rockwool below this location needs to be adjusted. This can be done by pulling embers
glass, logs, or firebox 2) Improper air shutter forward slightly. If the flames have soot tails, the shutter will need to be opened.
setting 2) If sooting continues open air shutter (see Air Shutter Adjustment on Page 12)
3) Not enough combus- 3) Check for debris obstructing air flow in valve compartment under insert or in front of
tion air lower venting.
4) Incorrect gas pres- 4) Have gas supplier check for correct gas pressure (7″ W.C. natural gas: 11″ W.C. pro-
sure pane gas)
Humming or whistling 1) Normal operating 1) See Quiet Operation on Page 15. The noise may be reduced by slightly turning down
coming from insert. noise the flame. Turning the flame down will reduce the heat output of the insert.
2) Obstructed orifice 2) If noise is excessive or is “whistling” have your gas supplier check the regulator and
opening orifices and replace if necessary.
3) Defective regulator 3) If noise is excessive or is “whistling” have your gas supplier check the regulator and orifices and replace if necessary.
A change in flame appear- 1) A change in gas 1) Have your gas supplier check for correct gas pressure (7″ W.C. / po. C.E. [1.74 kPa]
ance or burner operation. pressure natural gas; 11″ W.C. / po. C.E. [2.74 kPa] LP gas). NOTE: NEVER BLOCK OR OBSTRUCT
2) Improper ember AIR INTAKE OR OUTLET VENTS.
placement 2) See Log Set Installation Instructions.
Spark igniter will not light 1) No gas supplied to 1) Check gas supply. To purge, hold in gas cock on valve for 1-2 minutes and try again.
pilot after repeated tries. unit or air in line 2) Check for spark at electrode and pilot, if no spark and electrode wire is properly con-
2) Defective igniter (no nected, replace igniter and igniter wire.
spark at electrode) 3) Using a match, light pilot. If pilot lights, turn off pilot and trigger the igniter again.
3) Defective or mis- If pilot lights, an intermittent gas/air supply may be the problem, if longer purge will
aligned electrode at pilot not light – check gap between electrode and pilot – should be 1/8 inch (3 mm) to have a
(spark at electrode) strong spark. If OK, replace pilot.
Pilot will not stay lit after 1) Vent Safety Snap 1) Snap switch activated, have venting system inspected for blockage, down draft or
carefully following lighting Switch shut down. bad snap switch.
instructions. 2) Improper Flame 2) Check pilot flame adjustment (see “Maintenance” section).
impingement 3) Check inlet pressure and adjust pilot if necessary.
3) Low gas inlet pressure 4) Be sure wire connections from thermopile are tight at gas valve terminals and at vent
safety snap switch.
4) Defective thermopile 5a) Either rocker switch or thermostat wires may be grounded. Remove wires from valve
5) Bad connection terminals. If pilot stays lit, trace switch wiring for a ground. May be grounded to insert or
6)Defective automatic gas supply.
valve operator 5b) Check open circuit millivolt output of thermopile. Reading should be greater than
325mV. Also check thermopile wire for kinks that can cause loss of mV. Replace faulty
thermopile if wire is okay and reading is less than 325mV.
6)Turn valve knob to “ON” and thermostat (if installed) to 90º. Millivolt meter should read
greater than 100 mV. If reading is OK and burner does not turn on, replace gas valve
(qualified service technician only).
Pilot burning, but no 1) Pilot has gone out 1) See Lighting Instructions.
flame on main burner with 2) Rocker switch, 2) Disconnect rocker switch and thermostat wires at terminals 1 and 3 on valve. Jumper
valve knob “ON”, rocker thermostat, or wires across from 1 to 3 with pilot lit. If burner comes on either rocker switch, thermostat, or
switch and thermostat defective wiring is not functioning. If not, jumper wires across switch wires at gas valve. If burner
“ON”. 3) Thermopile may not comes on, wires are faulty or connections are bad.
be generating sufficient 3) Check thermopile with millivolt meter (see Maintenance and Servicing), recheck
millivolts symptom #2.
4) Plugged burner orifice. 4) Check burner for stoppage and remove.

REPLACEMENT PARTS LIST

PART # DESCRIPTION
H5952 #33 NG Main Burner Orifice
H5953 #35 NG High Elevation Main Burner Orifice
H5951 #50 LP High Elevation Main Burner Orifice
H5843 2” Bottom Trim Piece
H5950 #49 LP Main Burner Orifice
H5860 4 Piece Log Set
H5844 Air Control Burner Pan
H5842 Baffle Plate
H5519 Baffle Plate Holder Brackets
75145 Black Door w/Glass
H5874 Blower Power Cord
H5877 Blower Speed Control
H5996 Blower Speed Control And Housing (Includes 2 Rivets)
H5997 Blower w/Mounting Bracket
H5866 Brick Panel Set
H5934 Burner Tube
H5740 Cassette Assembly NG (For LP Installations, Also Order LP Conversion Kit)
H5863 Volcanic Stone
H5985 Decorative Gold Bar On Lower Stove Body
H5986 Decorative Nickel Bar On Lower Stove Body
H5905 Door Rope (Per Foot) Order 8 Ft. for each door
75146 Gold Door w/Glass
H5875 Heat Sensed Blower Snap Switch
H3106 Left-hand Side Door (Mounting Brackets & Blower Speed Control Installed)
H5881 LP Pilot Assembly (Includes Thermopile, Electrode And Wire)
H5930 LP Pilot Orifice
H5940 LP Regulator
H5744 Main Burner On/Off Rocker Switch
H5995 Main Burner On/Off Switch Wires
H5981 Main Door Decorative Gold Bars Each (2 Per Stove)
H5982 Main Door Decorative Nickel Bars Each (2 Per Stove)
H6000 Middle Bay Glass W/glass Tape Installed
H5880 NG Pilot Assembly (Includes Thermopile, Electrode And Wire)
H5949 NG Pilot Orifice
H5939 NG Regulator
75147 Nickel Door W/glass
H5745 Piezo Igniter
H5999 Rheostat Wire
H5954 Robertshaw Main Gas Control Valve LP
H5937 Robertshaw Main Gas Control Valve NG
H5864 Rock Wool (embers)
H3107 Side Bay Glass W/glass Tape Installed Each (2 Per Stove)
H5998 Snap Switch Wire
H5882 Thermopile
75254 Top Trivet
H5993 Vent Safety Snap Switch W/bracket
H5994 Vent Safety Snap Switch Wires

Safety / Listing Label LG B-VENT GAS img 25

TESTED TO ANSI 221.88-1998 ” VENTED GAS FIREPLACE HEATERS “.

THIS APPLIANCE MUST BE INSTALLED IN ACCORDANCE WITH LOCAL CODES, IF ANY. IF NOT, FOLLOW THE CURRENT ANSI 2223.1 IN THE USA. THIS APPLIANCE MUST BE INSTALLED IN ACCORDANCE WITH THE MANUFACTURER ‘ S NSTALLATION INSTRUCTION. FOR INSTALLATION IN SOLID FUEL BURNING FIREPLACES ONLY· MASONRY OR FACTORY BUILT.

THIS VENTED GAS FIREPLACE HEATER IS NOT FOR USE WITH AIR FILTERS.

THIS APPLIANCE NEEDS FRESH AIR FOR SAFE OPERATION AND MUST BE INSTALLED SO THERE ARE PROVISIONS FOR ADEQUATE COMBUSTION AND VENTILATION AIR.

RATINGS

NATURAL GAS

LP GAS

MAXIMUM INPUT BTUH 0-2,000FT (0-610 M)

39,000

39,000

MINIMUM INPUT BTUH 0-2,000 FT (0-610 M)

27,000

22,600

ORIFICE (DMS) 0-2000 FT (0-610 M)

#33 #49

MANIFOLD PRESSURE (IN. WC)

3.5

10.2

MIN. INLET PRESSURE (IN. WC)

5.0

10.5

UNIT FACTORY EQUIPPED FOR 0-2000 FT/0-610 M

ELECTRICAL RATING: 115 VAC, 60 HZ, LESS THAN 2 AMPS

DANGER: RISK OF ELECTRICAL SHOCK. DISCONNECT POWER BEFORE SERVICING UNIT.

IF ELECTRICALLY CONNECTED, CONNECTIONS AND GROUNDING MUST BE IN ACCORDANCE WITH LOCAL CODES, IF ANY. IF NOT, FOLLOW THE CURRENT NATIONAL ELECTRICAL CODE ANSI/NFPA 70.CHIMNEY· USE WITH B-VENT CHIMNEY OR LISTED SINGLE WALL GAS VENT FLEX CHIMNEY LINER.

FOR ALTITUDES ABOVE 2,000 FT. (610 M) DE-RATE THE APPLIANCE BY FOUR (4)% FOR EVERY 1,000FT (405 M).

WARNING: OPERATION OF THIS APPLIANCE WHEN NOT CONNECTED TO A PROPERLY INSTALLED AND MAINTAINED VENTING SYSTEM OR TAMPERING WITH THE BLOCKED VENT SHUTOFF SYSTEM CAN RESULT IN CARBON MONOXIDE (CO) POISONING AND POSSIBLE DEATH. LG B-VENT GAS img 26

CAUTION:HOT WHILE IN OPERATION. DO NOT TOUCH. KEEP CHILDREN, CLOTHING, FURNITURE, GASOLINE AND OTHER LIQUIDS HAVING FLAMMABLE VAPORS AWAY. KEEP BURNER AND CONTROL COMPARTMENT CLEAN. SEE INSTALLATION AND OPERATING INSTRUCTIONS ACCOMPANYING APPLIANCE. DO NOT OPERATE THE APPLIANCE WITH GLASS REMOVED, CRACKED OR BROKEN. REPLACEMENT OF THE PANEL(S) SHOULD BE DONE BY A LICENSED OR QUALIFIED PERSON.

WARNING: IMPROPER INSTALLATION,  ADJUSTMENT, ALTERATION, SERVICE OR MAINTENANCE CAN CAUSE INJURY OR PROPERTY DAMAGE. REFER TO THE OWNER’S INFORMATION MANUAL PROVIDED WITH THIS APPLIANCE. FOR ASSISTANCE OR ADDITIONAL INFORMATION CONSULT A QUALIFIED INSTALLER, SERVICE AGENCY OR GAS SUPPLIER. LG B-VENT GAS img 27

FOR YOUR SAFETY READ BEFORE OPERATING

WARNING: IF YOU DO NOT FOLLOW THESE INSTRUCTIONS EXACTLY, A FIRE OR EXPLOSION MAY RESULT CAUSING PROPERTY DAMAGE, INJURY OR LOSS OF LIFE.

CAUTION: HOT WHILE IN OPERATION. DO NOT TOUCH. KEEP CHILDREN, FURNITURE, GASOLINE AND OTHER LIQUIDS WITH FLAMMABLE VAPORS AWAY. NEVER OPERATE UNIT WITH GLASS DOOR OFF OR ATTEMPT TO OPEN THE DOOR WHILE HOT.

  1. This appliance is equipped with a piezo ignition device to light the When lighting the pilot, follow these instructions exactly.
  2. BEFORE LIGHTING, smell around the appliance area for Be sure to smell next to the floor because some gas is heavier than air and will settle on the floor.WHAT TO DO IF YOU SMELL GAS:– DO NOT try to light the appliance.– DO NOT touch any electric switch; do not use any phone in the building.Immediately call your gas supplier from a neighbor’s phone. Follow the gas supplier’s instructions. If you cannot reach your gas supplier, call the fire department.
  3. Use only your hand to push in or turn the gas control Never use any tool. If the knob will not push in or turn by hand, don’t try to repair t, call a qualified service technician. Force or attempted repair may result in a fire or explosion.
  4. DO NOT use this appliance if any part has been under Immediately call a qualified service technician to inspect the appliance and to replace any part of the control system and any gas control which has been under water.

OPERATING INSTRUCTIONS

CAUTION: YOUR COUNTRY GAS STOVE MUST ALWAYS BE OPERATED WITH GLASS DOOR IN PLACE.

STOP! Read the safety information above before proceeding.

  1. Open the right side Make sure gas supply shut-off cocks are open and ON/OFF Rocker Switch is “OFF”.
  2. Turn off all electrical power to the appliance.
  3. Push in Gas Cock Dial slightly and turn clockwise to “OFF”.

NOTE: Dial cannot be turned from “PILOT” to “OFF” unless Dial is pushed in slightly. Do not force.

  1. Wait five (5) minutes to clear out any If you smell gas, STOP! FollowB above. If you don’t smell gas continue.
  2. Locate the pilot by looking through the notch in the bottom right end of the front Blue flame will be seen when the pilot s lit.
  3. Turn the gas control knob counterclockwise to the “PILOT” position.
  4. Push the knob all the way in and hold in that Immediately light the plot by pressing the ignitor button several times until pilot is lit. Continue to hold the knob in for about 30 seconds after the p lot is lit. Release knob and it will pop back out. Pilot should remain lit. If it goes out, repeat steps 4-8 holding knob in an additional 15 seconds after pilot is lit. LG B-VENT GAS img 28
  • If knob does not pop out when released, stop and immediately call your service technician or gas supplier.
  • If the pilot will not stay lit after several tries, turn the gas control knob to “OFF” and call your service technician or your gas supplier.
    1. After pilot is lit, turn gas control counterclockwise to “ON”. Knob can only be turned “ON” if the knob has popped out.
    2. To turn burner on, turn “ON/OFF” rocker switch to “ON” or set the thermostat to the desired temperature above room temperature.
    3. Adjust the flame height (and heat output) by turning the flame height knob clockwise for full flame and counterclockwise for reduced flame.
    4. Set the blower to the desired air flow after it turns on when the appliance reaches operating temperature. LG B-VENT GAS img 29

TO TURN OFF GAS TO APPLIANCE

  1. Turn off the “ON/OFF” rocker switch and/or thermostat (if installed).
  2. Turn off electric power to the appliance if service is to be performed.
  3. Turn gas control knob clockwise to “OFF”. Do not force.

This appliance needs fresh air for safe operation and must be installed so there are provisions for adequate combust on and ventilation air. See Installation and Operation Manual accompanying appliance.

WARNING: Improper installation, adjustment, alteration, service or maintenance can cause injury or property damage. For assistance or additional information, consult a qualified installer, service agency or your gas supplier.

Operation of this appliance when not connected to a properly installed and maintained venting system or tampering with the vent safety shut off system can result n carbon monoxide (CO) poisoning and possible death.

SHUTDOWN PROCEDURE

To turn off the burner, switch the rocker switch to OFF or adjust the thermostat to a setting below room temperature (if installed). The pilot will remain lit for future burner ignition.

For complete shutdown: See “TO TURN OFF GAS TO APPLIANCE” above.

Product Reference Information

Warranty
Your gas appliance is covered by a limited warranty (provided with appliance). Please read the warranty to be familiar with its coverage.
Retain this manual. File it with your other documents for future reference.

Product reference information
We recommend that you record the following important information about your fireplace. Please contact your Lennox Hearth Products dealer for any questions or concerns. For the number of your nearest Lennox
Hearth Products dealer, please call 1-800-9-Lennox.

Replacement parts
Use only parts supplied from the manufacturer.

Normally, all parts should be ordered through your Lennox Hearth Products distributor or dealer. Parts will be shipped at prevailing prices at time of order.
When ordering repair parts, always give the following information:

  1. The model number of the appliance.
  2. The serial number of the appliance.
  3. The part number.
  4. The description of the part.
  5. The quantity required.
  6. The installation date of the appliance.

If you encounter any problems or have any questions concerning the
installation or application of this system, please contact your dealer.

LG B-VENT GAS img 30LG B-VENT GAS img 31

LENNOX HEARTH PRODUCTS
1110 West Taft Avenue
Orange, CA 92865
Visit us at www.lennox.com

 

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