Lennox Hearth 850, 055M User Manual

INSTALLATION AND OPERATION MANUAL

Portland

Catalytic Vent-Free

Wall-Mounted Gas Fireplace

Models: Scandium-NG and Scandium-LP

P/N 850,055M REV. F, 05/2009

Installer: Leave This Manual With The Appliance.

Consumer: Retain This Manual For Future Reference.

A Spanish manual is available upon request. Order P/N 850,055LS.

Este manual está disponible en espanol por solicitud. Pida P/N 850,055LS para la versión en espanol.

n the Commonwealth of Massachusetts:

• Installation must be performed by a licensed plumber or gas tter

• See Table of Contents for location of additional Commonwealth of Massachusetts requirements

Scandium™

Report No. 317-S-05-5

WARNINGS

• Hot! Do not touch! 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.

• Due to high temperatures, the appliance should be located out of trafﬁc and away from furniture or draperies.

• Do not place clothing or other materials on or near this appliance.

• Improper installation, adjustment, alteration, service or maintenance can cause injury or property damage. Refer to this manual. For assistance or additional information consult a qualiﬁed installer, service agency or the gas supplier.

• Do not build a wood ﬁre. Do not burn wood or other material in these appliances.

• This is an unvented gas log appliance. It uses air (oxygen) from the room in which it is installed. Provisions for adequate combustion and ventilation air must be provided. Refer to Combustion and Ventilation Air Section in this manual.

• This appliance may be installed in an aftermarket, permanently located, manufactured (mobile) home, where not prohibited by local codes.

• The 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.

• Lennox™ vent-free 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 these instructions is not followed exactly, a ﬁre or explosion may result causing property damage, personal injury or death.

- Do not store or use gasoline or other ﬂammable vapors and liquids in the vicinity of this or any other appliance.

- WHAT TO DO IF YOU SMELL GAS

• Do not try to light any appliance.

• Do not touch any electrical switch; do not use any phone in your building.

• Immediately call your gas supplier fr

m a neighbor’s phone. Follow the gas supplier’s instructions.

• If you cannot reach your gas supplier, call the ﬁre department.

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

1.0 IMPORTANT SAFETY AND WARNING INFORMATION

WARNINGS

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.

IMPORTANT

Read and understand these instructions completely before installing or operating your unvented room heater.

WARNING

Failure to keep the primary air opening(s) of the burner(s) clean may result in sooting and property damage.

WARNING

Failure to comply with the installation and operation instructions provided in this document will result in an improperly installed and operating appliance, voiding its warranty. Any change to this appliance and/or its operating controls is dangerous. Improper installation or use of this appliance can cause serious injury or death from ﬁre, burns, explosion or carbon monoxide poisoning.

WARNING

Do not allow fans to blow directly into the ﬁreplace. Avoid any drafts that alter burner ﬂame patterns.

WARNING

Check gas type: The gas supply must be the same as stated on the appliance’s rating plate. If the gas supply is different DO NOT install the appliance. Contact your dealer for the correct model.

WARNING

Do not use a blower insert, heat exchanger insert or other accessory not approved for use with this heater.

WARNING

Due to the nature of this product the area around the top of the appliance (i.e. the grill) gets very hot. Care should be taken when operating the appliance.

• Children and adults should be alerted to the hazard of high surface temperature and should stay away to avoid burns or clothing ignition.

• Young children should be carefully supervised when they are in the same room with the heater.

• Do not place clothing or other ﬂammable material on or near the heater.

• Any safety screen or guard removed for servicing the heater must be replaced prior to operating the heater.

• Installation and repair should be done by a qualiﬁed service person. The heater should be inspected before use and at least annually by a professional service person. More frequent cleaning may be required due to excessive lint from carpeting, bedding material, etc. It is important that control compartments, burners and circulating air passageways of the heater be kept clean.

• Allow the heater to cool before servicing. Always shut off the gas to the heater while performing service work.

• The installation must conform with local codes or, in the absence of local codes with the National Fuel Gas Code, ANSI Z223.1/NFPA 54-latest edition.

• The heater and its individual shut-off valve must be disconnected from the gas supply piping system while performing any tests of the gas supply piping system at pressures in excess of 1/2 psig.

• The heater 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.

• Keep heater area clear and free from combustible materials, gasoline and other ﬂammable vapors and liquids.

• Do not use this heater if any part has been under water. Immediately call a qualiﬁed service technician to inspect the room heater and to replace any part of the control system and any gas control which has been under water.

• Input ratings are shown in BTU per hour and are for elevations up to 4,500 feet. Do not install this heater at an elevation above 4,500 feet if the gas supply has not been derated for that elevation. Consult your local gas supplier. (For operation at elevations above 4,500 feet, equipment ratings shall be reduced at the rate of 4 percent for each 1,000 feet above 4,500 feet before selecting appropriately sized equipment). When installing any vent-free appliance at elevations above 4500 feet, nuisance pilot outages may occur.

• Ensure that the heater is clean when operating. Excessive dust accumulation on the burner will increase the amount of carbon monoxide formation and could lead to carbon monoxide poisoning and/or death.

• This appliance is intended for supplemental heating. If the appliance is used in a room as the sole source of heat, then condensation may occur on colder surfaces within the room.

• Carbon monoxide poisoning – early signs of carbon monoxide poisoning resemble the ﬂu with headaches, dizziness, or nausea. If you have these signs, get fresh air at once! Turn off the gas supply to the appliance and have the heater inspected by a qualiﬁed service technician. Some people are more affected by carbon monoxide than others. These include pregnant women, people with heart or lung disease or anemia, those under the inﬂuence of alcohol, and those at high altitudes.

• Maintain minimum clearances.

• Do not install the appliance in a sleeping room or bathroom.

• Do not place any objects on top of the appliance.

CONGRATULATIONS!

When you purchased your new gas ﬁreplace, you joined the ranks of thousands of individuals whose answer to their home heating needs reﬂects their concern for aesthetics, efﬁciency and our environment. We extend our continued support to help you achieve the maximum beneﬁt and enjoyment available from your new gas ﬁreplace.

These heaters are ﬁtted with a specially designed pilot utilizing an oxygen depletion sensor (ODS) which responds to the amount of oxygen available in the room and shuts the heater off before the oxygen level drops below 18%. It must not be adjusted or put out of operation. If replaced then manufacturers original parts must be used. The pilot can be relit only when fresh air is available. Refer to the Combustion and Ventilation Air section.

The appliance is designed to ﬁt various types of situations as listed in the installation requirements.

Thank you for selecting a Lennox Hearth Products gas ﬁreplace as the answer to your home heating needs.

TABLE OF CONTENTS

Section Contents Page No.

1.0 Safety And Warning Information

2.0 General Information

3.0 Packaging List

4.0 Appliance Speciﬁcations

5.0 Unpacking the Appliance

6.0 Burn-in Period

. . . . . . . . . . . . . . . . . . . . . . . 3

. . . . . . . . . . . . . . . . . . . . . . . . . . . 3

. . . . . . . . . . . . . . . . . . . 3

. . . . . . . . . . . . . . . . . . . 4

. . . . . . . . . . . . . . . . . . . . . . . . . . . 4

7.0 Codes, Massachusetts and New York

8.0 Combustion And Ventilation Air

9.0 Site Requirements

10.0 Preparing The Appliance

11.0 Mounting The Appliance

12.0 Checking The Burner

13.0 Connecting A Gas Line

. . . . . . . . . . . . . . . . . . . . . . . . 6

. . . . . . . . . . . . . . . . . . . 6

. . . . . . . . . . . . . . . . . . . 7

. . . . . . . . . . . . . . . . . . . . . . 8

. . . . . . . . . . . . . . . . . . . . 8

14.0 Checking The Gas Connections

15.0 Gas Pressure Check

16.0 Spark Gap

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

. . . . . . . . . . . . . . . . . . . . . . . 9

17.0 Assembly of the Glass Facia

18.0 Fitting the Glass Facia

19.0 Fitting the side panels

20.0 Brieﬁng The Customer

21.0 Servicing

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

22.0 Servicing The Burner

23.0 Pilot Assembly

24.0 Catalysts

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

. . . . . . . . . . . . . . . . . . . . . 11

. . . . . . . . . . . . . . . . . . . . . 12

. . . . . . . . . . . . . . . . . . . . . . 12

. . . . . . . . . . . . . . . . . . . . . . . . . . . 12

25.0 Testing For Firebox Leakage

26.0 Cleaning

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

27.0 Lighting Instructions & Turning Off Appliance

28.0 Troubleshooting Guide

29.0 Replacement Parts List

. . . . . . . . . . . . . . . . . . . . . 15

. . . . . . . . . . . . . . . . . . . . 16

30.0 Positioning Of Field Assembled Parts

31.0 Speciﬁcations / Gas Entry Point Dimensions

32.0 Product Reference Information

. . . . . . . . . . . . . 2

. . . . . . . . . 4

. . . . . . . . . . . . . . 5

. . . . . . . . . . . . . . 9

. . . . . . . . . . . . . . . . 10

. . . . . . . . . . . . . . . . 13

. . . 14

. . . . . . . . . 17

. . . . 18

. . . . . . . . . . . . . . 20

2.0 GENERAL INFORMATION

This appliance is factory set for operation on the gas type, and at the pressure stated on the appliance rating plate.

Read all these instructions before commencing installation. All instructions must be left in the possession of the user for safekeeping.

3.0 PACKAGING LIST

Quantity Description

1 Firebox And Burner Assembly 1 Installation And Operation Instructions 1 Glass Facia Panel Assembly 1 Fitting Template 1 Screw And Wall Plug Pack 1 Rubber Grommet

4.0 APPLIANCE SPECIFICATIONS

Gas Type Natural Gas Propane Gas

Gas inlet pressure Max.

Min.

Regulator Pressure Setting 5” w.c. 10” w.c.

Max Energy Input 11,950 BTU/hour 10,235 BTU/hour

Min Energy Input 6,820 BTU/hour 6,820 BTU/hour

Pilot Energy Input 560 BTU/hour 560 BTU/hour

Burner Pressure High (Manifold) Low

Main burner ﬂow restrictor (burner oriﬁce)

Oxypilot SIT/Bray 9082 SIT/Bray 9284

Gas Inlet Connection 3/8” NPT at regulator 3/8” NPT at regulator

Ignition Piezo spark Piezo spark

Spark Gap 1/8” - 3/16” 1/8” - 3/16”

Please see Data Plate afﬁxed to appliance for current data. This appliance is for use only with the gas type, and at the pressure stated on the appliance Data Plate.

Table 1

10.5” w.c. 6” w.c.

2.4” w.c.

0.8” w.c.

2.0 mm (0.079”) 1.45mm (0.057”)

13” w.c. 11” w.c.

5.5” w.c.

2.4” w.c.

This appliance is a high efﬁciency, unvented, ﬂame effect gas heater. It provides radiant and convected warmth both efﬁciently and safely utilizing the latest type catalytic convertor burner technology. The appliance does not require a ﬂue system of any type as the catalytic converter cleans the ﬂue products to provide a complete combustion system, which is intrinsically safe.

5.0 UNPACKING THE APPLIANCE

Remove the straps and the top lid of the outer packaging, remove any instructions or ﬁxing kits. Read ALL these instructions before continuing to unpack or install this appliance.

Lift off the remaining packaging components.

Check that the components supplied with the packaging list on Page

3. Please dispose of all the packaging materials at your local recycling center.

Massachusetts Requirements

These ﬁreplaces are approved for installation in the US state of Massachusetts if the following additional requirements are met:

• Unvented Room Heaters shall be installed in accordance with 527 CMR and 248 CMR:

• 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.

6.0 BURN-IN PERIOD

On initial light up of a new appliance, the ‘newness’ will burn off within the ﬁrst few hours of operation. During this period some smoke may be emitted from outlet grill, this should be no cause for concern. Accordingly, the room should be well ventilated with all windows and doors open during this period.

Depending on your use, the burn-in period may take a few hours or a few days. Also if you have a sensitive sense of smell you may notice slight odors during operating after the burn-in period is over.

KEEP YOUR HOUSE WELL VENTILATED DURING THE BURN-IN PERIOD. THE ODOR AND HAZE EMITTED DURING THE BURN-IN PERIOD CAN BE QUITE NOTICEABLE AND MAY SET OFF A SMOKE DETECTOR. MAKE SURE SMOKE DETECTORS ARE NOT TOO CLOSE TO THE FIREBOX (CHECK WITH YOUR LOCAL CODE FOR ALLOWABLE DISTANCES).

7.0 CODES

Adhere to all local codes or in their absence the latest edition of The National Fuel Gas Code ANSI Z223.1 / NFPA 54 - latest edition which can be obtained from The American National Standards Institute, Inc. (1430 Broadway, New York, NY, 10018) or National Fire Protection Association, Inc. (Batterymarch Park, Quincy, MA, 02269).

• Vent-Free appliances may NOT be installed in bedrooms or bath rooms.

• A working smoke detector must be installed in the area where ventfree appliances are installed.

Seller of unvented propane or natural gas-ﬁred supplemental room heaters shall provide to each purchaser a copy of 527 CMR 30 upon sale of the unit.

New York:

These ﬁreplaces are approved for installation in the US state of New York, but not in New York City.

Seller of unvented propane or natural gas ﬁred supplemental room heaters in the Commonwealth of Massachusetts shall provide to each purchaser a copy of 527 CMR 30 upon sale of the unit.

This Lennox Hearth Products Unvented Gas Room Heater is certiﬁed by OMNI-Test Laboratories, Inc to ANSI Z21.11.2 standard.

8.0 COMBUSTION AND VENTILATION AIR

This heater shall not be installed in a conﬁned space or unusually tight construction unless provisions are provided for adequate combustion and ventilation air. The heater may be located in unusually tight construction provided the space is unconﬁned, or if conﬁned, is provided with two permanent openings communicating directly with an additional room(s) of sufﬁcient volume so that the combined volume of all connected spaces meets the criteria for an unconﬁned space, (National Fuel Gas Code NFPA 54 / ANSI Z223.1 - latest edition, Section on Air for Combustion and Ventilation. Generally 50 ft3 per 1,000 BTU input of all operating appliances in the space.

The National Fuel Gas Code, ANSI Z223.1/NFPA 54, deﬁnes a conﬁned space as a space whose volume is less than 50 ft3 per 1,000 BTU/Hr (4.8 m3 per kW) of the aggregate input rating of all appliances installed in that space and an unconﬁned space as a space whose volume is not less than 50 ft3 per 1,000 BTU/Hr (4.8 m3 per kW) of the aggregate input rating of all appliances installed in that space.

Rooms communicating directly with the space in which the appliances are installed, through openings not furnished with doors, are considered a part of the unconﬁned space.

Unusually tight construction is deﬁned as construction where:

a. Wall and ceilings exposed to the outside atmosphere have a continu

ous water vapor retarder with a rating of one perm (6 X 10-11 kg per pa-sec-m2) or less with openings gasketed or sealed;

b. Weather stripping has been added on operable windows and doors;

and

c. Caulking or sealants are applied to areas such as joints around window

and door frames, between sole plates and ﬂoors, between wall ceiling joints, between wall panels, at penetrations for plumbing, electrical, and gas lines, and at other openings.

Example: Vent-free heater #1 9,000 BTU/Hr

Vent-free heater #2 23,000 BTU/Hr Gas appliance #1 35,000 BTU/Hr (water heater) Total = 67,000 BTU/Hr

* Do not include direct-vent gas appliances. Direct-vent is sealed com

bustion and draws combustion air from the outdoors.

4. Compare the maximum BTU/Hr the space can support with the actual amount of BTU/Hr used.

_______ BTU/Hr (max. the space can support) _______ BTU/Hr (actual amount of BTU/Hr used)

Example: 61,440 BTU/Hr (max. the space can support) 67,000 BTU/Hr (actual amount of BTU/Hr used)

The space in the previous example is a conﬁned space because the actual BTU/Hr used is more than the maximum BTU/Hr the space can support. You must provide additional fresh air.

Your options are:

a. Rework equations adding the space of adjoining room(s). If the extra

volume provides an unconﬁned space, then remove door or add ventilation grills between rooms. Refer to National Fuel Gas Code, ANSI Z223.1/NFPA 54-latest edition, Section "Air for Combustion and

Ventilation".

b. Vent room directly to the outdoors. Refer to National Fuel Gas Code,

ANSI Z223.1/NFPA 54-latest edition, Section "Air for Combustion and Ventilation".

c. Install a lower BTU/Hr heater to make the area an unconﬁned space.

If the actual BTU/Hr used is less than the maximum BTU/Hr the space can support, then the space is an unconﬁned space. You will need no additional fresh air ventilation for an unconﬁned space.

Use the following equations to determine if you have a conﬁned or unconﬁned space.

)/ 50 ft3 =

1. Determine the volume of space — ft

Length x Width x Height = _____ ft (Include adjoining rooms with doorless passageways or ventilation

grills between rooms).

Example:

2. Divide the volume of space by 50 ft3 to determine the maximum BTU/Hr

the space can support.

______ (volume of space – ft (Maximum BTU/Hr the space can support)

Example:

or 61,440 BTU/Hr the space can support.

Add the BTU/Hr of all the fuel burning appliances in the space.

Vent-Free heater _______ BTU/Hr Gas appliance #1* _______ BTU/Hr Gas appliance #2 + _______ BTU/Hr Gas appliance #3 + _______ BTU/Hr Total = _______ BTU/Hr

24' (L) x 16' (W) x 8' (H) = 3072 ft

3072 ft3 / 50 ft3 = 61.44

WARNING

If the area in which the heater may be operated is smaller than that deﬁned as an unconﬁned space or if the building is of unusually tight construction, provide adequate combustion and ventilation air by one of the methods described in the national fuel gas code, ANSI Z223.1/NFPA 54, Air for Combustion and Ventilation Or applicable local codes.

9.0 SITE REQUIREMENTS

The minimum clearance to the ceiling above the appliance is 32” measured from the top of the appliance glass panel.

This appliance is designed to be wall-hung. Do not recess any part of the appliance into the wall.

This appliance may be installed in any room in a home except bedrooms or bathrooms - or areas where large amounts of steam are likely to be generated.

It should be noted that heaters create warm air currents. These currents move heat to wall surfaces next to the heater. Installing the heater next to vinyl or cloth wall coverings or operating the heater where impurities in the air (such as tobacco smoke or candle smoke) exist, may discolor walls.

Installation in living rooms is common, however other rooms such as kitchens, dining rooms and hallways are permitted, providing a suitable gas supply is available, and rooms sizing and ventilation requirements are strictly adhered to (see Section 8.0).

The appliance is designed to be versatile, and as such will operate correctly when exposed to normal gentle drafts experienced within the home. It is not recommended, however that the appliance be installed in areas where it is likely to be exposed to persistent strong drafts, that may be generated by outside doors or windows, air vents etc. It is recommended that the appliance should not be installed within 20” of any air vent.

CAUTION

The back of the appliance may be installed directly onto a combustible wall or non-combustible wall, providing the area behind the appliance is ﬂat and does not interfere with the various vent holes in the back panel of the appliance.

Combustible materials should not be positioned directly in front of the appliance within a distance of 40”.

Under no circumstances should any electrical equipment e.g. plasma screen TV sets etc. be positioned on the wall above the appliance. The appliance is designed to be wall mounted alone and not in conjunction with any type of combustible ﬁre surround.

No combustible shelves should be positioned on the wall above the appliance.

It should be established that any mirrors or picture frames etc. to be positioned on the wall above the appliance are able to withstand prolonged exposure to moderate heat and moisture before proceeding with their installation.

The wall must be structurally sound and constructed from a material capable of withstanding moderate heat. Finished plaster, conventional wall paper and dry-lined plasterboard are examples of suitable materials. Materials such as ﬂock, blown vinyl and embossed paper which are sensitive to even small amounts of heat should be avoided as scorching and or discoloration may occur over time.

If the appliance is to be mounted on a dry-lined wall or a timber framed construction wall then the integrity and ability of the wall to carry the weight of the appliance must be conﬁrmed. It is important in these circumstances that any vapor control barrier is not damaged, and that any structural members of the house frame are not damaged.

The appliance may be positioned as close to a solid ﬂoor (i.e. stone, wooden laminate etc.) as the particular design of ﬁre frame permits, however it is not permitted to install the appliance within 4” of carpet, rugs or fabric materials of any kind. This dimension is measured vertically to the bottom of the appliance frame.

CLEARANCES TO NON-COMBUSTIBLES

Non-combustible surfaces are deﬁned as brick, metal, marble, concrete etc. and also a number of man-made materials impervious to ﬂame. If in doubt refer to the material manufacturer for further information before proceeding with installation.

Clearances to the sides of the appliance are 4”. Clearance to the front of the appliance is 20”.

The appliance may be installed with or without a non-combustible hearth. If a hearth is ﬁtted, the size and design may be as desired.

A non-combustible shelf of any depth may be positioned above the appliance provided it is no closer than 16” from the top of the appliance glass panel and the wall above the appliance is non-combustible.

CLEARANCES TO COMBUSTIBLE MATERIALS

Combustible materials are deﬁned as wood, fabrics, or other materials likely to combust if exposed to ﬂame. Generally, any material, which is likely to discolor, melt or misshape when exposed to moderate heat, should be considered as a combustible material or surface.

Clearance to the sides of the appliance are 4” but curtains, drapes and other fabrics are not permitted within a distance of 20” of the appliance sides. No such materials are permitted directly above the appliance regardless of distance.

10.0 PREPARING THE APPLIANCE

Follow the steps below:

Gas connection: The heater gas inlet connection is 3/8” NPT at the

regulator, located below the burner, in the center of the heater.

There are four possible entry points for the gas supply pipe-work to enter the appliance ﬁrebox. These entry points are ‘knock out’ type holes (shown in Figure 1).

NOTE: See Page 19 for gas line entry point dimensions.

Figure 1 - Gas Supply Entry Points

NOTE: DIAGRAMS & ILLUSTRATIONS ARE NOT TO SCALE

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