Monessen AVFLST48 Monessen Artisan 48 See Through Fireplace Installation and Operation Instructions

Installation Manual

Installation and Appliance Setup

INSTALLER: Leave this manual with party responsible for use and operation. OWNER: Retain this manual for future reference.

NOTICE: DO NOT discard this manual!

ARTISAN SERIES

Models:

AVFL42NIP-BU/PIP-BU AVFL42NIP-RB/PIP-RB AVFL48NIP/PIP AVFLST48NIP/PIP AVFL60NIP-B/PIP-B

WARNING: FIRE OR EXPLOSION HAZARD Failure to follow safety warnings exactly could result in serious injury, death, or property damage.

• DO NOT store or use gasoline or other am- mable 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.

- Leave the building immediately.

- 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 re department.

• Installation and service must be performed

by a qualied installer, service agency, or the gas supplier.

This is an unvented gas-red heater. It uses air (oxygen) from the room in which it is installed.

Provisions for adequate combustion and

ventilation air must be provided. Refer to Page 6.

In 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.

Monessen • AVFL Series Installation Manual • 4099-901 Rev. A • 03/21

DO NOT install this appliance in a bedroom or

bathroom. Please refer to page 6 Section F for proper appliance placement.

This appliance may be installed in an after-market, 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 appli-

ance is not convertible for use with other

gases.

Safety Alert Key:

• DANGER! Indicates a hazardous situation which, if not avoided will result in death or serious injury.

• WARNING! Indicates a hazardous situation which, if not avoided could result in death or serious injury.

• CAUTION! Indicates a hazardous situation which, if not avoided, could result in minor or moderate injury.

• NOTICE: Used to address practices not related to personal injury.

Table of Contents

Installation Standard Work Checklist ....................3

1 Product Specic and Important Safety Information

A. Appliance Certication ............................4

B. BTU Specications ...............................4

C. High Altitude Installations ..........................4

D. Non-Combustible Materials Specication. . . . . . . . . . . . . . 4

E. Combustible Materials Specication ................. 4

F. Electrical Codes .................................4

2 Getting Started

A. Design and Installation Considerations ............... 5

B. Tools and Supplies Needed ........................ 5

C. Inspect Appliance and Components ..................5

D. Getting Started ..................................6

E. Planning the Installation ........................... 6

F. Adequate Combustion Ventilation Air ................. 6

G. Important Safety and Operating Information ........... 8

3 Framing and Clearances

A. Appliance & Framing Dimension Diagrams ...........10

B. Clearances and Height Requirements ...............14

C. Good Faith Wall Surface TV Guidelines ..............16

D. Constructing the Appliance Chase ..................18

E. Floor Protection ................................ 18

6 Electrical Information

A. General Information .............................26

B. Wiring Requirements ............................27

7 Final Installation

A. Black Magic Glass Installation .....................29

B. Installation of Air Deection Glass .................. 30

C. Crushed Glass Media Only Placement ..............30

D. Glass and Optional Stone Kit Placement .............30

E. Placement of Optional Logs ....................... 32

F. Lighting Instructions (IPI) .........................35

8 Finishing

A. Facing and Finishing Instructions ...................36

B. Operation During a Power Outage ..................38

C. Detailed Component Operating Instructions.—Intellire Plus

ODS .........................................39

D. Troubleshooting ................................ 41

E. Accessories ................................... 43

4 Appliance Preparation

A. Securing and Leveling the Appliance ................19

B. Installing Non-Combustible Facing Material ..........20

5 Gas Information

A. Fuel Type .....................................21

B. Gas Pressure ..................................21

C. Gas Service Access .............................21

D. Connect to Gas ................................23

E. Valve Access ..................................24

F. Check Gas Pressure ............................ 24

G. Gas Connection ................................25

H. High Altitude Installations .........................25

WARNING! RISK OF FIRE OR EXPLOSION AND ASPHYXIATION HAZARD

Improper adjustment, alteration, service, maintenance, or installation of this heater

or its controls can cause death or serious injury. Read and follow instructions and precautions in User’s Information Manual provided with this heater.

Monessen • AVFL Series Installation Manual • 4099-901 Rev. A • 03/21

Installation Standard Work Checklist

Customer: Lot/Address:

Model

(circle one):

AVFL42NIP-BU/PIP-BU, AVFL42NIP-RB/PIP-RB

AVFL48NIP/PIP, AVFLST48NIP/PIP, AVFL60NIP-B/PIP-B

Date Installed: Location of Appliance: Installer: Dealer/Distributor Phone # Serial #:

Comments: Further description of the issues, who is responsible (Installer/ Builder/ Other Trades, etc) and corrective

action needed _____________________________________________________________________________________ Comments Communicated to party responsible ____________________ by ______________________on ___________

(Builder / Gen. Contractor/) (Installer) (Date)

?YHW , ON F I SEY

___________________________ ___________________________

___________________________

___________________________ ___________________________ ___________________________

___________________________ ___________________________

___________________________

___________________________ ___________________________

4099-982A 02/21

 = Contains updated information.

• Photographing the installation and copying this checklist for your file.

• That this checklist remain visible at all times on the appliance until the installation is complete.

This standard work checklist is to be used by the installer in conjunction with, not instead of, the instructions contained in this installation manual.

WARNING! Risk of Fire or Explosion! Failure to install appliance according to these instructions could lead to a fire or explosion.

ATTENTION INSTALLER:

Follow this Standard Work Checklist

Appliance Install Sections 2 and 4

Verified that the chase is insulated and sealed.

Required non-combustible board is installed.

Verifi ed clearances to combustibles. Fireplace is level

ed and secured.

Adequate provisions for combustion and ventilation air have been verified.

Gas Section 5

Proper appliance for fuel type. Leak check performed and inlet pressure verified. Verified proper air shutter setting for installation type.

Electrical Section 6

Unswitched power (110-120 VAC) provided to the appliance. Switch wires properly installed.

Crushed Glass Media & Logs Section 7

All packaging and protective materials removed (inside & outside of appliance). Crushed glass media installed correctly.

Accessories installed properly.

Finishing Section 8 (Pg 27)

Verifi ed all clearances meet installation manual requirements. Mantels and wall projections comply with installation manual requirements.

Manual bag and all of its contents are removed from inside/ under the appliance and given to party responsible for use and operation. Started appliance and veried no gas leaks exist.

Hearth & Home Technologies recommends the following:

Monessen • AVFL Series Installation Manual • 4099-901 Rev. A • 03/21

Product Specic and Important Safety Information

A. Appliance Certication

MODEL: AVFL42NIP-BU, AVFL42PIP-BU, AVFL42NIP-RB, AVFL42PIP-RB, AVFL48NIP, AVFL48PIP, AVFLST48NIP, AVFLST48PIP, AVFL60NIP-B, AVFL60PIP-B

LABORATORY: UNDERWRITERS LABORATORIES, INC. (UL)

TYPE: Unvented Room Heaters

STANDARD: ANSI Z21.11.2:19

This product is listed to ANSI standards for "Unvented Room Heaters” and applicable sections of "Gas Burning Heating Appliances for Manufactured Homes" and "Gas Fired Appliances for Use at High Altitude."

NOTICE: This installation must conform with local codes. In the absence of local codes you must comply with the National Fuel Gas Code, ANSI Z223.1-latest edition in the U.S.A.

NOT INTENDED FOR USE AS A PRIMARY HEAT SOURCE.

This appliance is tested and approved as either supplemen-

tal room heat or as a decorative appliance. It should not be factored as primary heat in residential heating calculations.

B. BTU Specications

Models

AVFL42NIP-BU (NG) (0-2000 FT) 34,000 23,500 .1110(#34)

AVFL42PIP-BU (PROPANE) (0-2000 FT) 33,000 26,000 .070(#50)

AVFL42NIP-RB (NG) (0-2000 FT) 24,500 17,500 .096(#41)

AVFL42PIP-RB (PROPANE) (0-2000 FT) 24,000 19,000 .0595(#53)

AVFL48NIP (NG) (0-2000 FT) 39,000 27,500 .120(#31)

AVFL48PIP (PROPANE) (0-2000 FT) 38,000 31,000 .076(#48)

AVFLST48NIP (NG) (0-2000 FT) 39,000 27,500 .120(#31)

AVFLST48PIP (PROPANE) (0-2000 FT) 38,000 31,000 .076(#48)

AVFL60NIP-B (NG) (0-2000 FT) 40,000 28,000 .120(#31)

AVFL60PIP-B (PROPANE) (0-2000 FT) 39,000 30,500 .076(#48)

NOTE: For LP models an external regulator is required to reduce supply pressure to a maximum of 13" w.c.

Maximum

Input

BTU/h

Minimum

Input BTU/h

Orice

Size (DMS)

GAS PRESSURES

NATURAL PROPANE (LP)

Inlet Minimum 5.0" w.c. 11.0" w.c.

Inlet Maximum 10.0" w.c. 13.0" w.c.

Regulator Pressure

Setting

Pilot Regulator 3.5" w.c. —

3.5" w.c. 10" w.c.

C. High Altitude Installations

NOTICE: If the heating value of the gas has been reduced, these rules do not apply. Check with your local gas utility or authorities having jurisdiction.

When installing above 2000 feet elevation: Reduce input rate 4% for each 1000 feet above 2000 feet.

Check with your local gas utility to determine proper

orice size.

D. Non-Combustible Materials Specication

Material which will not ignite and burn. Such materials are

those consisting entirely of steel, iron, brick, tile, concrete,

slate, glass or plasters, or any combination thereof.

Materials that are reported as passing ASTM E 136,

Standard Test Method for Behavior of Materials in a Vertical Tube Furnace at 750 ºC shall be considered non-combustible materials.

E. Combustible Materials Specication

Materials made of or surfaced with wood, compressed pa-

per, plant bers, plastics, or other material that can ignite and burn, whether ame proofed or not, or plastered or unplastered shall be considered combustible materials.

F. Electrical Codes

NOTICE: This appliance must be electrically wired and grounded in accordance with local codes or, in the absence of local codes, with National Electric Code

ANSI/NFPA 70-latest edition or the Canadian Electric Code CSA C22.1.

• A 110-120 VAC circuit for this product must be pro-

tected with ground-fault circuit-interrupter protection, in compliance with the applicable electrical codes, when it is installed in locations such as in bathrooms

or near sinks.

WARNING: This product and the fuels used to operate this product (liquid propane or natural gas), and the products of combustion of such fuels, can expose you to chemicals including benzene, which is known to the State of California to cause cancer and reproductive harm. For more information go to: www.P65Warnings. ca.gov.

Monessen • AVFL Series Installation Manual • 4099-901 Rev. A • 03/21

Getting Started

A. Design and Installation Considerations

Installation MUST comply with local, regional, state and national codes and regulations. Consult insurance carrier, local building inspector, re o󰀩cials or authorities having

jurisdiction over restrictions, installation inspection and

permits.

Before installing, determine the following:

• Where the appliance is to be installed.

• Gas supply piping.

• Electrical wiring requirements.

• Framing and nishing details.

• Whether optional accessories—devices such as a wall switch or remote control—are desired.

Installation and service of this appliance should

be performed by qualied personnel. Hearth & Home Technologies recommends HHT Factory Trained or NFI certied professionals.

Improper installation, adjustment, alteration, service or

maintenance can cause injury or property damage. For assistance or additional information, consult a qualied service technician, service agency or your dealer.

C. Inspect Appliance and Components

• Carefully remove the appliance and components from

the packaging.

• The accessories and fronts may be shipped in separate

packages.

• Crushed Glass Media may be packaged separately.

• Report to your dealer any parts damaged in shipment, particularly the condition of the glass.

• Read all of the instructions before starting the installation. Follow these instructions carefully during the

installation to ensure maximum safety and benet.

WARNING! Risk of Fire or Explosion! Damaged parts could impair safe operation. DO NOT install damaged, incomplete or substitute components. Keep appliance dry.

Hearth & Home Technologies disclaims any responsibility

for, and the warranty will be voided by, the following actions:

• Installation and use of any damaged appliance.

• Modication of the appliance.

• Installation other than as instructed by Hearth & Home

Technologies.

• Installation and/or use of any component part not approved

by Hearth & Home Technologies.

Any such action may cause a re hazard.

B. Tools and Supplies Needed

Before beginning the installation be sure that the following

tools and building supplies are available.

• Tape measure

• Pliers

• Hammer

• Gloves

• Voltmeter

• Level

• Manometer

• Framing material

• Phillips screwdriver

• Framing square

• Plumb line

• Safety glasses

• Reciprocating saw

• Flat blade screwdriver

• 1/2 - 3/4 in. length, #6 or #8 Self-drilling screws

• Non-corrosive leak check solution

• Electric drill and bits (1/4 in. magnetic)

• External regulator (for propane/LPG only)

• Piping which complies with local codes

• Pipe sealant approved for use with propane/LPG

(Resistant to sulfur compounds)

• Manual shuto󰀨 valve

• Sediment trap

• Tee joint

• Pipe wrench

Monessen • AVFL Series Installation Manual • 4099-901 Rev. A • 03/21

WARNING! Risk of Fire, Explosion or Electric Shock! DO NOT use this appliance if any part has been under

water. Call a qualied service technician to inspect the

appliance and to replace any part of the control system and/or gas control which has been under water.

WARNING

This appliance is equipped for (natural or propane) gas. Field conversion is not permitted.

D. Getting Started

Verify that all listed parts have been received. You should

have the following:

• Unvented gas heater

• Two (2) anchoring screws

• Installation and Owner’s instructions

• 7.25" non-combustible board

• Deector glass

• Five (5) bags crushed glass media (60" appliances)

• Four (4) bags crushed glass media (42" and 48"

appliances)

• RC300 remote control

Carefully inspect the contents for shipping damage. If any

parts are missing or damaged, immediately inform the

dealer from whom you purchased the appliance. Do not attempt to install any part of the appliance unless you have all parts in good condition.

WARNING

Do not install the heater:

• Where curtains, furniture, clothing, or

other ammable objects are less than

36" from the front of the heater.

• In high tra󰀩c areas.

• In windy or drafty areas.

WARNING

Gloves are recommended when handling

ceramic ber logs to prevent skin irritation from loose bers. Logs are fragile—handle

with care.

4. Plumb gas line. Gas line may be run either through

bottom of unit or left side. There is no right side access. Refer to the Connect the Gas (page 20, Figure 5.3) section found in this manual. (Gas connections should only be performed by an experienced, licensed/certied service person).

5. Complete nish wall material and/or surround.

F. Adequate Combustion Ventilation Air

This heater shall not be installed in a conned space or

unusually tight construction unless provisions are provided

for adequate combustion and ventilation air. The National Fuel Gas Code, (ANSI Z223.1/NFPA54),

denes a conned space as a space whose volume is less than 50 cubic feet per 1,000 BTU per hour (4.8m

of the aggregate input rating of all appliances installed in

that space, and an unconned space as a space whose volume is not less than 50 cubic feet per 1,000 BTU per hour (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 a conned space. Unusually tight construction is dened as construction

where: a. Walls and ceilings exposed to the outside atmosphere

have a continuous water vapor retarder with a rating of

1 perm (6 x 10

gasketed or sealed, and

b. Weather stripping has been added to windows and

doors, and

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

around window and door frames, between sole plates

and oors, between wall-ceiling joints, between wall

panels, at penetrations for plumbing, electrical and gas

lines and other openings.

kg per pa/sec-m2) or less with openings

per kw)

E. Planning the Installation

When planning the installation of the appliance it is necessary to determine where the appliance is to be installed

and whether optional accessories are desired. Gas supply piping should also be planned. The following steps represent the normal sequence of installation. Each installation is unique, however, and might require a di󰀨erent sequence.

1. Position appliance in desired location. Refer to the Appli-

ance Location (page 7, Figure 2.2) and Clearances and Height Requirements (page 12, Figures 3.6 and 3.7) sections and Appliance and Framing Dimensions (page 10 and 11, Figure 3.4 and 3.5) illustration found in this

manual.

NOTE: Be sure all packing material has been removed

from under and behind the unit.

2. Install following the instructions found in this manual.

3. Field wire main power supply to junction box. Refer to the

Electrical Installation section (page 23). (Electrical connections should only be performed by an experienced,

licensed certied service person).

Monessen • AVFL Series Installation Manual • 4099-901 Rev. A • 03/21

The following formula can be used to determine the maxi-

mum heater rating per the denition of unconned space:

BTU/Hr = (L1 + L2) Ft x (W) Ft x (H) Ft

Consider two connecting rooms with an open area between, with the following dimensions:

L1 = 151/2 Ft., L2 = 12 Ft., W = 12 Ft., H = 8 Ft.

BTU/Hr = (151/2 + 12) x (12) x (8)

If there were a door between the two rooms the calculation

would be based only on the room with the heater.

BTU/Hr = (151/2) x (12) x (8)

Counter

Figure 2.1

WARNING

If the area in which the heater may be operated does not meet the required volume for indoor combustion air, combustion and ventilation air shall be provided by one of the methods described in the National

Fuel Gas Code, ANSI Z223.1/NFPA 54, the International Fuel Gas Code or applicable

local codes.

Appliance

• Never obstruct the front opening of the unvented appli-

ance or restrict the ow of combustion and ventilation air.

• Minimize modications to existing construction. Refer

to Figure 2.2 below for location suggestions.

• Do not install in the vicinity where gasoline or other

ammable liquids may be stored. The unvented rebox must be kept clear and free from the combustible

materials.

Appliance

Figure 2.2

APPLIANCE LOCATION

This unvented gas heater requires no outside venting and

burns cleanly and e󰀩ciency. As a zero-clearance unvented

gas heater, it can be installed against (or recessed into)

any wall that is accessible to a gas line.

Carefully select the best location for installation of your

unvented appliance. The following factors should be taken into consideration.

• Clearance to side wall, ceiling, woodwork and window

or other combustibles. Refer to Clearance and Height Requirements section on Page 12. Minimum clear-

ances to combustibles must be maintained.

• Location must not be a󰀨ected by drafts caused by

kitchen exhaust fans, ceiling fans, return air registers for forced air furnaces / air conditioners, windows or

doors.

• Installation must provide adequate ventilation and

combustion air.

• DO NOT INSTALL THIS MODEL IN A BEDROOM

OR BATHROOM.

• Location should be out of high tra󰀩c areas and

away from furniture and draperies due to heat from

rebox.

NOTICE: Illustrations reect typical installations and are

FOR DESIGN PURPOSES ONLY. Illustrations/diagrams are not drawn to scale. Actual installation could vary due to individual design preference.

It is important to follow the framing and nishing instructions step by step to ensure proper placement of appli-

ance in the surrounding framing/nishing materials.

Monessen • AVFL Series Installation Manual • 4099-901 Rev. A • 03/21

G. Important Safety and Operating Information

WARNING

• Any change to this appliance or its controls can be dangerous.

• Improper installation or use of the appliance can cause serious injury or death from re, burns,

explosion or carbon monoxide poisoning.

• Do not allow fans to blow directly into the appliance. Avoid any drafts that alter burner ame patterns.

• Do not use a blower insert, heat exchanger insert or other accessory, not approved for use with

this heater where applicable.

1. Due to high temperatures, the appliance should be located out of tra󰀩c and away from furniture and draperies.

2. Children and adults should be alerted to the hazard

of high surface temperature and should stay away

to avoid burns or clothing ignition.

3. Young children should be carefully supervised when they are in the same room with the appliance.

4. Do not place clothing or other ammable material on or near the appliance.

5. Any safety screen or guard removed for servicing

an appliance, must be replaced prior to operating

the heater.

6. Installation and repair should be done by a qualied service person. The appliance 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 imperative that control

compartments, burners, and circulating air pas-

sageways of the appliance be kept clean.

7. This appliance is intended for supplemental heating.

8. CARBON MONOXIDE POISONING: Early signs of carbon monoxide poisoning are similar to the u with headaches, dizziness and/or nausea. If you have these signs, obtain fresh air immediately. Have the heater serviced as it may not be operating properly.

9. The installation must conform with local codes or, in

the absence of local codes, with the National Fuel Gas Code, ANSI Z223.l/NFPA54.

10. Do not install this appliance in a bathroom or bedroom.

11. Correct installation of the crushed glass media, optional stone and ceramic ber logs, proper location of the

appliance, and annual cleaning are necessary to avoid

potential problems with sooting. Sooting, resulting

from improper installation or operation, can settle on

surfaces outside the appliance. Refer to log placement instructions for proper installation.

12. WARNING: Do not allow fans to blow directly into the appliance. Avoid any drafts that alter burner ame patterns. Do not place a blower inside burn area of appliance. Ceiling fans may create drafts that alter burner ame patterns. Sooting and improper burning will occur.

13. Caution: Candles, incense, oil lamps, etc. produce combustion by-products including soot. Vent-free appliances will not lter or clean soot produced by these types of products. In addition, the smoke and/

or aromatics (scents) may be reburned in the vent-free

appliance which can produce odors. It is recommended to minimize the use of candles, incense, etc. while the vent-free appliance is in operation.

14. This heater shall not be installed in a room or space

unless the required volume of indoor combustion air is provided by the method described in the National Fuel

Gas Code, ANSI Z223.1/NFPA 54, the International Fuel Gas Code or applicable local codes.

15. Keep room area clear and free from combustible materials, gasoline and other ammable vapors and liquids.

16. Unvented appliances emit moisture into the living area. In most homes of average construction, this does not pose a problem. In houses of extremely

tight construction, additional mechanical ventilation is

recommended.

17. During manufacturing, fabricating and shipping, various

components of this appliance are treated with certain

oils, lms or bonding agents. These chemicals are not

harmful but may produce annoying smoke and smells

as they are burned o󰀨 during the initial operation of the

appliance; possibly causing headaches or eye or lung

irritation. This is a normal and temporary occurrence.

The initial break-in operation should last three to four

hours with the burner at the highest setting. Provide

maximum ventilation by opening windows or doors to

allow odors to dissipate. Any odors remaining after this

initial break-in period will be slight and will disappear

with continued use.

18. Input ratings are shown in BTU per hour and are for elevations up to 2,000 feet. For elevations above 2,000

feet, input ratings should be reduced 4 percent for each

1,000 feet above sea level. Refer to the National Fuel Gas Code.

Monessen • AVFL Series Installation Manual • 4099-901 Rev. A • 03/21

CLEAR SPACE

SECTION 3.A.

DECORATIVE DOORS

SECTION 4

GLASS ASSEMBLY

SECTION 4

OPERATION DURING

A POWER OUTAGE

SECTION 3.I

19. The appliance and its appliance main gas valve must

be disconnected from the gas supply piping system during any pressure testing of that system at test pressures in excess of 1⁄2 psig (3.5 kPa).

20. The appliance must be isolated from gas supply piping system by closing its equipment shuto󰀨 valve during

any pressure testing of the gas supply piping system at test pressures equal to or less than 1⁄2 psig (3.5 kPa).

21. Do not use this room heater if any part has been under water. Immediately call a qualied 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.

22. Never burn solid fuels in a appliance where a unvented room heater is installed.

23. WARNING: Failure to keep the primary air opening

of the burner clean may result in sooting and property

damage.

24. WARNING: Do not use a blower insert, heat exchanger

insert or other accessory not approved for use with this

heater.

BUILDING CODE INFORMATION

Adhere to all local codes or, in their absence, the latest

edition of THE NATIONAL FUEL GAS CODE ANSI Z223.1 or NFPA54 which can be obtained from:

American National Standards Institute, Inc.

1430 Broadway

New York, NY 10018

National Fire Protection Association, Inc.

Batterymarch Park

Quincy, MA 02269

General Operating Parts

Figure 3.2 references the general operating parts of the

appliance and the section of this manual in which they are

discussed.

Figure 3.2 General Operating Parts

C. Fuel Specications

WARNING! Risk of Fire or Explosion! Appliance must be set up for compatible gas type!

• This appliance is designed to operate on either natural

gas or propane. Make sure the appliance is compatible with gas type selected for installation site.

WARNING! Risk of Fire! Comply with all minimum

clearances to combustibles as specied in the installation

instructions.

Monessen • AVFL Series Installation Manual • 4099-901 Rev. A • 03/21

Framing and Clearances

A. Appliance and Framing Dimensions

13-3/8 in

7-1/4 in

8 in

3 in

Figure 3.1 - Appliance Dimensions

6-1/2 in

9-1/8 in

3-1/8 in

17 in

8-1/8 in

AVFL42 AVFL48 AVFL60

A 42 in 48 in 60 in

B 45-1/4 in 51-1/4 in 63-1/4 in

C 46-1/8 in 52-1/8 in 64-1/8 in

40-1/4 in

33 in

39-1/2 in

3-3/4 in

3-1/8 in

5-3/8 in

Monessen • AVFL Series Installation Manual • 4099-901 Rev. A • 03/21

13 in

7-1/4 in

8 in

17 in

8-1/8 in

3-1/8 in

6-1/2 in

8-7/8 in

3-1/8 in

Figure 3.2 - AVFLST48 Appliance Dimensions

14-7/8 in

5-7/8 in

48 in

51-1/4 in

52-1/8 in

40-1/4 in

33 in

39-1/2 in

3-3/4 in

3-1/8 in

5-3/8 in

6 in

21-1/8 in

3-3/4 in

6-1/8 in

3-1/8 in

5-3/8 in

Figure 3.3 - AVFLST48 With Outdoor Kit Appliance Dimensions

Monessen • AVFL Series Installation Manual • 4099-901 Rev. A • 03/21

52-1/8 in

55-1/2 in

39-1/8 in

33-1/4 in

6 in

39-1/2 in

3-1/8 in

8-3/8 in

1/2”

13-1/8”

39-3/4”

Framing

Figure 3.4 - Framing Dimensions

AVFL42 AVFL48 AVFL60

A 42 in 48 in 60 in

B 46-5/8 in 52-5/8 in 64-5/8 in

C 47-7/8 in 55-3/8 in 63-7/8 in

D 71-1/4 in 78-1/4 in 90-3/8 in

Monessen • AVFL Series Installation Manual • 4099-901 Rev. A • 03/21

39-3/4”

Framing

48”

52-5/8”

1/2”

Figure 3.5 - AVFL48ST Framing Dimensions

52-5/8”

55-7/8”

52-5/8”

Exterior Wall Installation

13-1/2”

Interior Wall Installation

11-5/8”

Monessen • AVFL Series Installation Manual • 4099-901 Rev. A • 03/21

B. Clearances and Height Requirements

Sidewall

Ensure that minimum clearances shown in Figures 3.6, 3.7,

3.8 and 3.9 are maintained. Left and right clearances are determined when facing the front of the appliance.

Follow these instructions carefully to ensure safe installation. Failure to follow these requirements may create a re hazard.

Sidewall and Mantel Clearances — The clearance from

the inside of the appliance to any combustible adjacent

wall should not be less than 6". Mantel leg clearances are projected out at a 45° angle. Figure 3.6, 3.7, 3.8 and 3.9 .

Ceiling Clearance — The ceiling must be at least 36" from the appliance opening. Figure 3.6, 3.7, 3.8 and 3.9.

Back Wall Clearance — The appliance may be placed against a combustible back wall.

Wall

Ceiling

Stud

WARNING

The dimensions shown in Figures 3.6, 3.7,

3.8 and 3.9 are minimum clearances to maintain when installing this appliance. Left and right clearances are determined when facing the front of the heater.

Follow these instructions carefully to ensure safe installation. Failure to follow

instructions exactly can create a re hazard.

Floor Clearance — The appliance may be installed directly on a combustible oor or a raised platform of an appropriate height. Do not place appliance on carpeting, vinyl, tile or other soft oor coverings. It may, however, be placed on at wood, plywood, particle board or other hard surfaces. Be sure appliance rests on a solid continuous oor or platform

with appropriate framing for support so that no cold air can

enter from under the rebox.

Mantel clearances — Must meet the clearance requirements detailed in Figures 3.6, 3.7, 3.8 and 3.9 .

SIDE VIEW

Appliance Opening

17-1/2

Top of Appliance Opening

Non-Combustible Board

Stando

SIDE VIEW

Wall

Ceiling

Stud

Non-Combustible Board

15-1/2

Top of Appliance Opening

Stando

TOP VIEW

Figure 3.6 - Combustible Mantel Clearances (AVFL42N(P)IP-BU, AVFL48N(P)IP, AVFL60N(P)IP-B, AND AVFLST48N(P)IP appliances)

See Good Faith Guidelines for TV Installations on pages 14 & 15, Figure 3.10 & 3.11.

Monessen • AVFL Series Installation Manual • 4099-901 Rev. A • 03/21

Appliance Opening

TOP VIEW

Sidewall

Figure 3.7 - Combustible Mantel Clearances (AVFL42N(P)IP-RB)

Ceiling

Wall

Ceiling

Stud

17-1/2

Non-Combustible Board

Stando

Top of Appliance

SIDE VIEW

Opening

Note: Reducing clearances further requires non-combustible construction materials (eg: steel studs, durock, etc) to a height of 12 inches above the framing height.

Stud

Insulation Board

13-1/2

Top of Appliance

SIDE VIEW

Opening

Note: Reducing clearances further requires non-combustible construction materials (eg: steel studs, durock, etc) to a height of 12 inches above the framing height.

Appliance Opening

TOP VIEW

Sidewall

Figure 3.8 - Non-Combustible Mantel Clearances (AVFL42N(P)IP-BU, AVFL48N(P)IP, AVFL60N(P)IP-B, AND AVFLST48N(P)IP appliances)

Appliance Opening

TOP VIEW

Sidewall

Figure 3.9 - Non-Combustible Mantel Clearances (AVFL42N(P)IP-RB)

Monessen • AVFL Series Installation Manual • 4099-901 Rev. A • 03/21

C. Good Faith Wall Surface TV Guidelines

Combus ble Mantel

inch

(AVFL42N(P)IP-BU, AVFL48N(P)IP, AVFL60N(P)IP-B, AND AVFLST48N(P)IP appliances)

Good Faith Guidelines for TV on’s above a Typical Gas Fireplace

22.00

Non-Combus ble Mantel

inch 20.00

TV on the wall

6" Min.

TV recessed into the wall

28" Min.

A Min.

12" Min.

Top of appliance opening

12" Min.

Top of appliance opening

Notes:

1. These are good faith recommended clearances only and not a guarantee of compliance with all TV manufacturers’ maximum allowable operating temperatures.

2. Since every home has unique air ow characteristics and maximum allowable operating temperatures can vary from manufacturer to manufacturer and from model to model, actual TV temperatures should be validated at the time of each installation. TVs should not be used in situations where the actual TV temperature exceeds the manufacturers’ maximum allowable operating temperatures identied in the TV’s technical specications. Contact the TV’s manufacturer directly if you cannot locate this information or have questions regarding the information.

3. Mantel height and depth must conform to mantel requirements specied in the replace installation manual.

4. “A” dimension taken from the top of the rebox opening.

5. Suggestions on how to further reduce TV temperatures:

-Increase “A” and/or 28” minimum TV height dimensions.

28" Min.

A Min.

Figure 3.10 - Good Faith TV Guidelines

Monessen • AVFL Series Installation Manual • 4099-901 Rev. A • 03/21

Good Faith Wall Surface TV Guidelines (continued)

Combus ble Mantel

inch

(AVFL42N(P)IP-RB)

Good Faith Guidelines for TV on’s above a Typical Gas Fireplace

Non-Combus ble Mantel

inch

TV on the wall

6" Min.

14.00

12.00

TV recessed into the wall

" Min.

A Min.

" Min.

Top of appliance opening

Notes:

1. These are good faith recommended clearances only and not a guarantee of compliance with all TV manufacturers’ maximum allowable operating temperatures.

3. Mantel height and depth must conform to mantel requirements specied in the replace installation manual.

4. “A” dimension taken from the top of the rebox opening.

5. Suggestions on how to further reduce TV temperatures:

-Increase “A” and/or 18” minimum TV height dimensions.

8" Min.

A Min.

Top of appliance opening

Figure 3.11 - Good Faith TV Guidelines

Monessen • AVFL Series Installation Manual • 4099-901 Rev. A • 03/21

D. Constructing the Appliance Chase

A chase is a vertical box-like structure built to enclose the

gas appliance.

NOTICE: Construction of the chase may vary with the type of building. These instructions are not substitutes for the requirements of local building codes. Therefore, you MUST check local building codes to determine the requirements to these steps.

Chases should be constructed in the manner of all outside walls of the home to prevent cold air drafting prob-

lems. The chase should not break the outside building envelope in any manner.

Walls, ceiling, base plate and cantilever oor of the chase should be insulated. Vapor and air inltration barriers

should be installed in the chase as per regional codes for

the rest of the home. Additionally, in regions where cold air inltration may be an issue, the inside surfaces may be

sheet rocked and taped (or an equivalent method may be

used) to achieve maximum air tightness.

To further prevent drafts, the wall shield and ceiling re-

stops should be sealed with caulk with a minimum of

300ºF continuous exposure rating to seal gaps. Gas line

holes and other openings should be sealed with caulk

with a minimum of 300ºF continuous exposure rating or stu󰀨ed with unfaced insulation. If the appliance is being

installed on a cement surface, a layer of plywood may be placed underneath to prevent conducting cold up into the

room.

E. Floor Protection

NOTICE: Install appliance on hard metal or wood surfaces extending full width and depth. DO NOT install directly on carpeting, vinyl, tile or any combustible material other than wood.

WARNING! Risk of Fire! Maintain specied air space

clearances to appliance and vent pipe:

• Insulation and other materials must be secured to prevent

accidental contact.

• The chase must be properly blocked to prevent blown insulation or other combustibles from entering and

making contact with appliance or chimney.

• Failure to maintain airspace could cause overheating and re.

Note: Figure 3.10, 3.11, and 3.12 show the appliance installed on the oor. However, this appliance can be elevated o󰀨 the oor provided that the appliance is properly supported by framing materials and the ceiling clearances are maintained.

Figure 3.12 - Floor Protection

Monessen • AVFL Series Installation Manual • 4099-901 Rev. A • 03/21

Appliance Preparation

A. Securing and Leveling the Appliance

WARNING! Risk of Fire! Prevent contact with:

• Sagging or loose insulation

• Insulation backing or plastic

• Framing and other combustible materials

Block openings into the chase to prevent entry of blownin insulation. Make sure insulation and other materials are secured.

DO NOT notch the framing around the appliance

standos. Failure to maintain air space clearance could cause overheating and re.

To properly position, level, and secure the appliance, see

below. Nailing tabs are provided to secure the appliance to the framing members.

• Bend out the two nailing tabs on each side.

• Place the appliance into position.

• Keep nailing tabs ush with the framing. See Figure 4.2.

• Level the appliance from side to side and front to back.

• Shim the appliance as necessary. It is acceptable to use wood shims underneath the appliance.

• Secure the appliance to the framing by using nails or

screws through the nailing tabs.

Some gures in manual show the appliance installed on the oor. However, this appliance can be elevated o󰀨 the oor provided that the appliance is properly supported

by framing materials and the ceiling clearances are

maintained.

51-1/4”

7-1/4”

Standos

39-3/8”

Figure 4.1 - Non-Combustible Board Installation

Framing Members

7-1/4 in.

Nailing Flange

Screws

Nailing Flange

Non-Combustible Board

Nailing Flange

Screws

Figure 4.2 - Securing Appliance to Framing

Monessen • AVFL Series Installation Manual • 4099-901 Rev. A • 03/21

Setting the Appliance into the Framing

The left and right nailing tabs were designed as a means

to ensure the appliance is mounted ush with the framing materials. See Figures 4.2 and 4.3.

1. Bend out all nailing tabs. The AVFL60 has four nailing tabs, two on each side in the middle of the appliance.

2. Screw each nailing tab to the adjoining framing material. See Figures 3.1-3.7 for framing and clearance details.

B. Installing Non-Combustible Facing Material

WARNING! Risk of Fire!

• Follow these instructions exactly.

• Facing materials must be installed properly to prevent

re.

• No materials may be substituted without authorization by Hearth & Home Technologies.

• Non-combustible facing material needs to be at least 7-1/4" high and the full width of the appliance.

• Attach non-combustible facing material to the framing

members with regular sheetrock screws.

• Use a wet or dry towel or soft brush to remove dust or dirt from facing material.

• See Section 8 for nishing materials guidelines.

Figure 4.3 - Nailing Tabs

Figure 4.4 - Install Non-Combustible Facing Material

Monessen • AVFL Series Installation Manual • 4099-901 Rev. A • 03/21

Gas Information

A. Fuel Type

• This appliance is equipped for either natural or propane

gas. Field conversion is not permitted.

• Make sure the appliance is compatible with available gas

types.

B. Gas Pressure

• Optimum appliance performance requires proper input pressures.

• Gas line sizing requirements will be determined in ANSI Z223.1 National Fuel Gas Code in the USA.

• Pressure requirements are:

NATURAL PROPANE (LP)

Inlet Minimum 5.0" w.c. 11.0" w.c.

Inlet Maximum 10.0" w.c. 13.0" w.c.

Regulator Pressure

Setting

Pilot Regulator 3.5" w.c. —

3.5" w.c. 10" w.c.

Note: Have the gas supply line installed in accordance with local codes, if any. If not, follow ANSI Z223.1. Installation should be done by a qualied installer approved and/or licensed as required by the locality. (In the Commonwealth

of Massachusetts installation must be performed by a

licensed plumber or gas tter).

Note: A listed (and Commonwealth of Massachusetts ap-

proved) 1/2 in. (13 mm) T-handle manual shut-o󰀨 valve and exible gas connector are connected to the 1/2 in. (13 mm) control valve inlet.

• If substituting for these components, please consult local codes for compliance.

C. Gas Service Access

NOTE: This appliance does include a manual gas shuto󰀨

valve that is located in the valve compartment. This manual gas shuto󰀨 valve is accessible for service by removing the con tro l doo r. See Fi gur e 5.2 . The valve is most accessible

if it is located forward in the control cavity of the appliance.

Depending upon local code, an additional manual gas

shuto󰀨, in a readily accessible area may be required and located upstream from the appliance.

WARNING! Risk of Fire or Explosion! High pressure will damage valve. Low pressure could cause explosion.

• Verify inlet pressures. Verify minimum pressures when other household gas appliances are operating.

• Install regulator upstream of valve if line pressure is

greater than 1/2 psig.

• Valve pressure taps are accessible by removing the control door. See Figures 5.1 & 5.2.

WARNING

Fire Risk.

Explosion Hazard.

High pressure will damage valve.

• Disconnect gas supply piping BEFORE

pressure testing gas line at test pressures

above 1/2 psig.

• Close the manual shuto󰀨 valve BEFORE

pressure testing gas line at test pressures

equal to or less than 1/2 psig.

Figure 5.1.- Valve Pressure Tap

TEST PORT "A"

Monessen • AVFL Series Installation Manual • 4099-901 Rev. A • 03/21

Figure 5.2 - Valve Access

Monessen • AVFL Series Installation Manual • 4099-901 Rev. A • 03/21

D. Connect to Gas

NOTICE: A qualied gas appliance installer must connect

the heater to the gas supply. Consult all local codes.

WARNING

THIS APPLIANCE IS EQUIPPED FOR EITHER NATURAL OR PROPANE GAS. FIELD CONVERSION IS NOT PERMITTED.

WARNING

Use new black iron or steel pipe. Internally tinned copper or copper tubing can be used per National Fuel Code, section 2.6.3, providing

gas meets hydrogen sulde limits, and where

permitted by local codes. Gas piping system must be sized to provide minimum inlet pressure (Listed on Data Plate) at the maximum

ow rate (BTU/hr). Undue pressure loss will

occur if the pipe is too small. A manual shutoff valve must be installed upstream of the appliance. Union tee and plugged 1⁄8" NPT pressure tapping point should be installed upstream of the appliance. Figure

5.3 A sediment trap should be installed upstream to prevent moisture and contaminants from passing through the pipe to appliance controls and burners. Failure to do so could prevent the appliance from operating reliable. Figure 5.3

When an appliance is connected to a xed piping system, 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 or International Fuel Gas Code.

WARNING

CHECK GAS TYPE: The gas supply must be the same as stated on the heater’s rating plate. If

the gas supply is di󰀨erent, DO NOT INSTALL

THE HEATER. Contact your dealer for the correct model.

IMPORTANT: Loosen the pipe adapter on the ex tube

before installing to the system piping.

Always use an external regulator for all propane/LPG heat-

ers only, to reduce the supply tank pressure to a maximum

of 13" w.c. This is in addition to the internal regulator in the heater valve.

When tightening the joint to the valve, hold the valve

securely to prevent movement.

Test all gas joints from the gas meter to the heater valve for

leaks using a gas analyzer or soap and water solution after completing connection. DO NOT USE AN OPEN FLAME.

WARNING

Connecting directly to an unregulated propane/LP tank can cause an explosion.

DO NOT USE OPEN FLAME TO CHECK FOR GAS LEAKS.

Figure 5.3 - Gas Line In

GAS LINE IN

Monessen • AVFL Series Installation Manual • 4099-901 Rev. A • 03/21

E. Valve Access

TEST PORT 'A'

Screen

The valve and controls are located in the appliance con-

trol area. See Figure 5.4.

The controls area can be accessed by lifting engine as-

sembly as shown in Figure 5.4.

• Make sure appliance is o󰀨 and cool.

• Remove crushed glass media and deection glass

panel from hearth pan.

• Remove two (2) screws securing burner assembly to appliance, set aside.

• Lift the burner assembly and place the two engine supports, provided under the engine, against lower front space at the bottom of the face, and slide into

the slots at the bottom of the engine assembly. See Figure 5.4.

• Locate valve on face of engine assembly.

• Gas line sizing requirements will be determined in

ANSI Z223.1 National Fuel Gas Code in the USA.

• Pressure requirements are:

These pressures can be veried by lifting engine and removing control cover to reveal the valve.

When an appliance is connected to a xed piping sys-

tem, 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 or International Fuel Gas Code.

F. Check Gas Pressure

Check the gas pressure with the appliance burning and the control set to HIGH.

The valve regulator controls the burner pressure which

should be checked at the pressure test point.

Turn captured screw counterclockwise two or three turns

and then place tubing to pressure gauge over test point. Use test point “A” closest to gas inlet. After taking pres-

sure reading, be sure and turn captured screw clockwise

rmly to reseal. Do not over torque. Check for gas leaks. See Figure 5.5.

Figure 5.5 - Pressure Test Point Location

Engine Support

Control Area

Figure 5.4 - Valve Access

Figure 5.6 - Gas and Electrical Access - Remove Screen

Monessen • AVFL Series Installation Manual • 4099-901 Rev. A • 03/21

G. Gas Connection

• Refer to Figure 5.7 for location of gas ex line access in appliance.

• Gas line may be run through the left side or right bottom of the appliance. See Figure 5.3.

• The gap between supply piping and gas access hole may be sealed with caulk or aluminum foil tape with a

minimum of 300ºF continuous exposure rating or stu󰀨 ed

with non-combustible, unfaced insulation to prevent cold

air inltration.

• Ensure that gas line does not come in contact with outer

wrap of the appliance. Follow local codes.

• Pipe incoming gas line into valve compartment.

• Connect incoming gas line to the 1/2 in. (13 mm) connection on manual shuto󰀨 valve.

WARNING! Risk of Fire or Explosion! Support control when attaching pipe to prevent bending gas line.

• A small amount of air will be in the gas supply lines.

WARNING! Risk of Fire or Explosion! Gas build-up during line purge could ignite.

• Purge should be performed by qualified service

technician.

• Ensure adequate ventilation.

• Ensure there are no ignition sources such as sparks

or open ames.

Light the appliance. It will take a short time for air to purge from lines. When purging is complete the appliance will light and operate normally.

WARNING! Risk of Fire, Explosion or Asphyxiation!

Check all ttings and connections with a non-corrosive

commercially available leak-check solution. DO NOT use open ame. Fittings and connections could have loosened during shipping and handling.

WARNING! Risk of Fire! DO NOT change valve settings. This valve has been preset at the factory.

H. High Altitude Installations

NOTICE: If the heating value of the gas has been reduced, these rules do not apply. Check with your local gas utility or authorities having jurisdiction.

When installing above 2000 feet elevation reduce input

4% for each 1000 feet above 2000 feet.

Check with your local gas utility to determine proper ori-

ce size.

18" Flex Line

Figure 5.7 - Gas Fitting Access

Gas Valve

Monessen • AVFL Series Installation Manual • 4099-901 Rev. A • 03/21

Electrical Information

A. General Information

WARNING! Risk of Shock or Explosion! DO NOT wire 110-120 VAC to the valve or to the appliance wall switch. Incorrect wiring will damage controls.

NOTICE: This appliance must be electrically wired and grounded in accordance with local codes or, in the absence of local codes, with National Electric Code ANSI/NFPA 70-latest edition.

• Wire the appliance junction box to unswitched 110-

120 VAC. This is required for proper operation of the appliance.

• A 110-120 VAC circuit for this product must be protected

with ground-fault circuit-interrupter protection, in compliance with the applicable electrical codes, when it is installed in locations such as in bathrooms or near

sinks.

• Low voltage and 110/120 VAC voltage cannot be shared within the same wall box.

Electrical Service and Repair

WARNING! Risk of Shock! Label all wires prior to disconnection when servicing controls. Wiring errors can cause improper and dangerous operation. Verify proper operation after servicing.

WARNING! Risk of Shock! Replace damaged wire with type 105º C rated wire. Wire must have high temperature insulation.

Accessories Requirements

• The AVFL48 and AVFL60 ship standard with a wall switch to turn the appliance on and o󰀨. The AVFL42 appliances ship without a wall switch but the AVFL42LED light kit can be purchased separately. This kit includes LED lights,

switches and wiring to control the lights as well as a wall

switch to turn the appliance on and o󰀨.

Wiring for optional Hearth & Home Technologies approved accessories should be done now to avoid reconstruction. Follow instructions that come with those accessories.

Junction Box Installation

WARNING! Risk of Shock! Label all wires prior to disconnection when servicing controls. Wiring errors can cause improper and dangerous operation. Verify proper operation after servicing.

WARNING! Risk of Shock! Replace damaged wire with type 105° C rated wire. Wire must have high temperature insulation.

necting the wires, route the wire leads through this

connector. Refer to the wiring diagram in Figure 6.2.

Cover Plate for Junction Box

Figure 6.1 - Cover Plate for Junction Box

WARNING

Electrical connections should only be performed

by a qualied, licensed electrician. Main power must be o󰀨 when connecting to main electrical

power supply or performing service. All wiring shall be in compliance with all local, city and state codes. 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) and Canadian Electrical Code, CSA C22.1.

WARNING

Do not connect wall switch to 110 V circuit.

Label all wires before disconnecting when servicing controls. Wiring errors can cause improper and dangerous operation.

CAUTION

120V AC 60Hz

Junction Box Wiring

1. This should be done before framing the appliance. Wire the receptacle into an electrical circuit.

2. The junction box cover has a Romex style strain relief connector located in the Owner’s Manual. After con-

Monessen • AVFL Series Installation Manual • 4099-901 Rev. A • 03/21

Factory Supplied

Junction Box

Figure 6.2 - Junction Box Wiring Diagram

Not Supplied

B. Wiring Requirements

Intellire™ Plus ODS Ignition System Wiring

• Wire the appliance junction box to 110-120 VAC for

proper operation of the appliance.

WARNING! Risk of Shock or Explosion! DO NOT wire IFP ODS controlled appliance junction box to a switched circuit. Incorrect wiring will override IFP ODS safety lockout.

• Refer to Figure 6.3, IFP ODS Wiring Diagram.

• This appliance is equipped with an Intellire™ Plus

control valve which operates on a 6 volt/1.5 AMP system.

• Plug the 6 volt transformer plug into the appliance junction

box to supply power to the unit OR install 4 AA cell batteries (not included) into the battery pack before use.

NOTICE: Batteries should only be used as a power source in the event of an emergency power outage. Batteries should not be used as a primary long-term power source. Battery polarity must be correct when installing batteries. When using batteries as a power source, the 6-volt transformer must be unplugged from the receptacle.

Do not store batteries in the battery pack when the

appliance is powered by the 6 volt transformer connected to permanent electrical service.

Monessen • AVFL Series Installation Manual • 4099-901 Rev. A • 03/21

THERMOCOUPLE MODULE

THERMOCOUPLE

PILOT

IGNITER

THERMOCOUPLE

MODULE RESET SWITCH

ORANGE

(PILOT)

Thermocouple Module Wire Assembly

FLAME

MODULATION

GREEN

(MAIN)

CONTROL MODULE

6 PIN WIRING HARNESS

RED

BLACK

BROWN

GROUND

IGNITER

WHITE

8K-1 to Adapter Box Wire Assembly

GRAY

ODS to Adapter Box Wire Assembly

“Y” CONNECTOR

ODS Adapter Box

RC300 4.5V DC (AAA X 3)

12 FT WALL SWITCH WIRE

RED

BLK

BATTERY PACK

WHT

RED

WALL

SWITCH

NOTE: The LED components, rocker switch, wall switch wire and "Y" connector do no ship standard with the 42" units. These options must be purchased separately with the AVFL42LED kit

TOP BUTTON

ON/HI/MED/LO/OFF

LED PANEL SWITCHES

BOTTOM BUTTON

COLOR SELECTION

JUNCTION BOX

Figure 6.3 - IntelliFire™ Plus ODS Wiring Diagram

Monessen • AVFL Series Installation Manual • 4099-901 Rev. A • 03/21

BLACK

TRANSFORMER

LED STRIP

GREEN

BLUE

YELLOW

RED

YELLOW AUX INPUT CABLE PORT

YELLOW AUX INPUT CABLE

CONTROL MODULE

NOTE: The five black plugs on the control module are designed for the LED strips only and can be used for the LEDs in any configuration. The yellow port is for wall controls only.

Final Installation

A. Black Magic Glass Installation

NOTE: Black Magic Glass does not ship standard with the 42" appliances. This option must be purchased separately with the AVFL42BGL kit.

NOTE: Before beginning installation remove the two L

shaped brackets from the manual pack along with two #8 phillips head screws.

NOTE: After gas and electric are connected and the

appliance has been test red the glass can be installed.

1. Remove the screen from the front of the appliance.

2. Remove the screw holding the burner tray to the side of the appliance for shipping.

3. Remove the right and left black glass bracket that are shipped in place. Save bracket and screws for installing black glass. See Figure 7.1.

5. (Skip this step for See Through Appliances) Place the rear glass panel against the rear wall of the rebox, resting behind the burner assembly. The dimples in the glass will face the rebox. Reinstall the rear black glass bracket.

6. Place the left side panel between the burner assembly and rebox, resting to the left of the burner assembly. Reinstall the left black glass bracket.

7. Repeat step 6 on the right side black glass.

Figure 7.1 - Remove Left and Right Black Magic Glass Brackets

4. Remove the rear black glass bracket that is shipped in place. Save bracket and screws for installing black glass. (Not needed on See Through appliance) See Figure 7.2.

Black Magic Glass

for See Through

Figure 7.3 - Black Magic Glass Installation

Figure 7.2 - Remove Rear Black Magic Glass Bracket

Monessen • AVFL Series Installation Manual • 4099-901 Rev. A • 03/21

B. Installation of Air Deection Glass

NOTE: If installing optional driftwood logs be sure to

install log pin brackets prior to installing air deection glass or crushed glass media. See pages 28, 29 or 30 for instructions.

NOTE: The air deection glass must be installed prior to placing any crushed glass media, stone kit or log set. To install the air deection glass simply place the edge of the deection glass into the two position tabs (located at the front of the engine base) and slide into ngers until

reaching the bottom of the tab slots, in front of the burner

ports. The glass should stand upright, neither leaning forward nor backward. See Figure 7.4.

NOTE: The optional stone kit and log kit are to be installed

alone and never in combination.

C. Crushed Glass Media Only Placement

NOTE: Five (5) bags of crushed glass media are supplied

with the 60" appliance and Four (4) bags of crushed glass media are supplied with the 42" and 48" appliance.

The crushed glass media is used to cover the entire oor and burner. We advise against using additional crushed glass media as too much can cut o󰀨 the proper amount of air the burner needs to burn cleanly. This may cause sooting.

1. Spread crushed glass media evenly in one layer over the entire oor and burner. It is important to not have

the crushed glass media too thick on ported area (single

layer only).

2. Turn burner on and adjust crushed glass media over

ported areas to achieve an even, clean ame.

D. Glass and Optional Stone Kit Placement

1. For best results, spread crushed glass media evenly over the entire oor and burner making sure the glass is not too thick over the burner ports (single layer only). See Figure 7.4.

2. Place the stones randomly in front of and behind the burner. CAUTION: Do not allow stones to sit directly on burner or in ame. See Figure 7.4.

3. Turn burner on and adjust crushed glass media over the ported area to achieve an even, clean ame.

Monessen • AVFL Series Installation Manual • 4099-901 Rev. A • 03/21

Deection Glass Tabs

Burner surface. DO NOT place stones in the unshaded area.

Example of stone accessory placement

Figure 7.4– Air Deection Glass and Stone Placement

Monessen • AVFL Series Installation Manual • 4099-901 Rev. A • 03/21

Air deflection glass

E. Placement of Optional Logs

WARNING

The positioning of the logs is critical to the safe and clean operation of this heater. Sooting and other problems may result if the logs are not

properly and rmly positioned in the appliance.

Never add additional logs or embellishments such as pine cones, vermiculite or rock wool to the heater. Only use the logs supplied with the optional log kit (CDLS).

Failure to position the parts in accordance with

diagrams below or to use only parts specically

approved for this heater may result in property damage or personal injury.

NOTE: Do not handle logs with your bare hands. Always wear gloves to prevent skin irritation from log material.

After handling the logs, wash your hands with soap and

water to remove any traces of bers.

NOTE: Prior to installing the log set, you must rst install

the pin brackets on the burner. The air deection glass and

glass media should only be installed after the pin brackets

are in place. The air deection glass should be installed prior to placing glass media on the burner. The logs must

then be placed in the unit after the glass media and air

deection glass. If the optional logs are added to the appliance after installation of deective glass and glass media,

move the glass media away from the pin location holes

on the rebox bottom assembly as per Figure 7.5 or 7.7.

AVFL42N(P)IP-BU, AVFL42N(P)IP-RB, AVFL48N(P)IP, and AVFLST48N(P)IP

WARNING: Turn o󰀨 appliance and allow to cool completely before beginning installation. DO NOT use this kit with any other internal hearth option such as stones.

Kit Contents:

• Three (3) driftwood logs

• Six (6) log support pin brackets

• Six (6) #8 bracket mounting screws

Log Pin Locations

1. Mount the four log support pin brackets using mounting holes and screws provided in locations indicated

in Figure 7.5 for the front and rear log. Only one hole

of the pin bracket will be used to secure the pin to the

outside of the burner assembly base. The other hole remains unused and rests on the mesh area. Next, arrange glass media evenly across the burner again.

Figure 7.5– Log Pin Placement for AVFL42N(P)IP-BU, AVFL42N(P)IP-RB, AVFL48N(P)IP, AVFLST48N(P)IP, ODLANAIG-48 AND ODLANAIGST-48

Monessen • AVFL Series Installation Manual • 4099-901 Rev. A • 03/21

2. Place the rear log (#1) by aligning the holes in the bottom of the log with the two pins in back of the burner. See Figure 7.6.

3. Place the front log (#2) by aligning the holes in the bottom of the log with the two pins in front of the burner. See Figure 7.6.

WARNING: Log #3 does not get used with the AVFL42N(P)IP-BU, AVFL42N(P)IP-RB, AVFL48N(P)IP, and AVFLST48N(P)IP

installing this kit with these appliances. Do not install any extra logs in these appliances.

. This log should be discarded when

Figure 7.6 – Log Placement for AVFL42N(P)IP-BU, AVFL42N(P)IP-RB, AVFL48N(P)IP, and AVFLST48N(P)IP,

AVFL60N(P)IP AND ODLANAIG-60

1. Mount the six log support pin brackets using mounting

holes and screws provided in locations indicated in

Figure 7.7 for the front logs and rear log. Only one hole

outside of the burner assembly base. The other hole remains unused and rests on the mesh area. Next, arrange glass media evenly across the burner again.

of the pin bracket will be used to secure the pin to the

Log Pin Locations

Figure 7.7 – Log Pin Placement for AVFL60N(P)IP AND ODLANAIG-60

Monessen • AVFL Series Installation Manual • 4099-901 Rev. A • 03/21

2. Place the rear log (#1) by aligning the holes in the bottom of the log with the two pins in back of the burner. See Figure 7.8.

3. Place the front right log (#2) by aligning the holes in

the bottom of the log with the two pins in front of the

burner. See Figure 7.8.

4. Place the front left log (#3) by aligning the holes in the bottom of the log with the two pins in front of the burner. See Figure 7.8.

WARNING: Logs must be located in the correct position

on the pins so they do not interfere with the burner surface.

Figure 7.8 – Log Placement for AVFL60N(P)IP AND ODLANAIG-60

Monessen • AVFL Series Installation Manual • 4099-901 Rev. A • 03/21

F. Lighting Instructions (IPI)

FOR YOUR SAFETY READ BEFORE LIGHTING

WARNI NG: If you do not follow these instructions exactly, a ﬁ re or explosion may result causing property damage, personal injury or loss of life.

A. This appliance is equipped with an intermittent pilot ignition (IPI) device which

automatically lights the burner. DO NOT try to light the burner by hand.

B. BEFORE LIGHTING, smell all around the appliance area for gas. Be sure to smell

next to the ﬂ oor because some gas is heavier than air and will settle on the ﬂ oor.

WHAT TO DO IF YOU SMELL GAS

• DO NOT try to light any appliance.

• DO NOT touch any electric switch; do not use any phone in your building.

1. This appliance is equipped with an ignition device which automatically lights the burner. DO NOT try to light the burner by hand.

GAS

VALVE

1. Equipped with wall switch: Turn ON/OFF switch to OFF. Equipped with remote or wall control: Press OFF button. Equipped with thermostat: Set temperature to lowest setting.

• 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 ﬁ re department.

C. DO NOT use this appliance if any part has been under water. Immediately call

a qualiﬁ ed service technician to inspect the appliance and to replace any part of the control system and any gas control which has been under water.

LIGHTING INSTRUCTIONS (IPI)

2. Wait ﬁ ve (5) minutes to clear out any gas. Then smell for gas, including near the

ﬂ oor. If you smell gas, STOP! Follow “B” in the Safety Information located on the

top of this label. If you do not smell gas, go to next step.

3. To light the burner:

Equipped Equipped with remote or wall control: Press ON or FLAME button.

4. If the appliance does not light after three tries, call your service technician or gas

with wall switch: Turn ON/OFF switch to ON.

Equipped with thermostat: Set temperature to desired setting.

supplier.

TO TURN OFF GAS TO APPLIANCE

2. Service technician should turn off electric power to the control when performing

service.

4604-200

WARNING:

DO NOT CONNECT LINE VOLTAGE (110/120 VAC OR 220/240 VAC) TO THE CONTROL VALVE.

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 qualiﬁ ed installer, service agency or the gas supplier.

This appliance needs fresh air for safe operation and must be installed so there are provisions for adequate combustion and ventilation air.

CAUTION:

Keep burner and control compartment clean. See installation and operating instructions accompanying appliance.

Hot while in operation. DO NOT touch. Keep children, clothing, furniture, gasoline and other liquids having ﬂ ammable vapors away.

NOT FOR USE WITH SOLID FUEL

follow the National Fuel Gas Code, ANSIZ223.1/ NFPA 54, or the National Gas and Propane Installation code, CSA B149.1.

For additional information on operating your

Hearth & Home Technologies ﬁ replace, please refer to www.ﬁ replaces.com.

,enon fi ;yna fi ,sedoc lacol htiw ecnadrocca ni dellatsni eb tsum ecnailppa sihT

4604-201

Monessen • AVFL Series Installation Manual • 4099-901 Rev. A • 03/21

Finishing

A. Facing and Finishing Instructions

WARNING! Risk of Fire! Comply with all minimum clear-

ances to combustibles as specied. Framing closer than the

minimums listed must be constructed entirely of non-combustible materials (i.e., steel studs, concrete board, etc.).

Finishing Instructions

It is important to follow the framing and nishing instructions to ensure proper placement of appliance into the

surrounding framing/nishing materials.

Wall sheathing materials 1/2 in. thick are specied in

this installation manual to properly align with the non-

combustible material.

WARNING! Risk of Fire! Non-combustible board MUST be installed. DO NOT remove or cover it with combustible material, such as:

• Drywall (gypsum board)

• Plywood

• Materials that do not meet the ASTM E 136 Non-combustibility standard (below).

Removal of installed, non-combustible board and/or use

of materials not meeting the ASTM E 136 standard could

cause re.

Non-Combustible Materials Specication

Material which will not ignite and burn. Such materials are

those consisting entirely of steel, iron, brick, tile, concrete,

slate, glass or plasters, or any combination thereof.

Or materials that are reported as passing ASTM E 136,

Standard Test Method for Behavior of Materials in a Vertical Tube Furnace at 750 ºC.

WARNING! Risk of Fire! Maintain specied air space

clearances to combustibles. Inadequate air space could

cause overheating and re.

Finishing Materials

NOTICE: The maximum nishing material not only includes

the decorative nish materials (marble, tile, slate, etc) but

also the thin set, lath, and adhesive used to attach the

decorative nish material.

NOTICE: Surface temperatures around the appliance will become warm while the appliance is in operation. Ensure finishing materials used for all surfaces (floor, walls, mantels, etc.) will withstand temperatures up to 190°F.

This section discusses installation details associated

with the Inside and Overlap Fit methods and species additional non-combustible materials required.

• Finishing Around Perimeter of Appliance (Install Option #1)

Gypsum wallboard (drywall) joints can be nished up to

the perimeter of the left, right and bottom edge of the

appliance ush with the face. The 7-1/4"of supplied non-

combustible must be used at the top of the appliance

where the gypsum board can then be nished to the left, right and top edge of the non-combustible board.

• Finishing Around Opening of Appliance (Install Option #2)

NOTE: With this installation option, the appliance must

be recessed to the depth of the non-combustible being

used to ensure nish is ush with surrounding wall. This is the recommended install option for all nish kits shown on page 39. Refer to Trim Kit instructions for Option #2 installation before starting.

The 7-1/4" non-combustible must rst be installed above

the unit in the same manner as installation option #1, ush with the top face of the unit. In this option, non-

combustible is required for all material covering the face

of the unit. The non-combustible may be installed up to the rebox opening but must not overlap which would impede the removal of the screen. When installing material around the rebox opening, install the sheet with a pre-cut hole for the rebox opening in a single sheet, if possible. This will minimize joints across the appliance face and reduce cracking.

Tape wall board joints around the appliance opening with

berglass-mesh tape. It will provide a more crack-resistant joint than paper tape. Fill, smooth and nish wall joints with chemically setting-type joint compound. It will

provide a more crack-resistant joint than air-drying light-

weight compound.

Finish and Sealing Joints

All joints between the nished wall sheathing and the appliance must be sealed with non-combustible materials.

Sealants, such as caulk or mastic used to seal the gap between the wall and the appliance, should be rated at a

minimum continuous exposure to 300ºF.

Painting

If desired nishing includes a painted wall, 100% acrylic

latex with compatible primer is recommended around this

appliance. Oil-based or standard acrylic paints may discolor due to heat exposure.

The appliance is designed to mate with 1/2 in. wall

sheathing materials such as drywall, plywood, wood

composites, or non-combustible materials.

Monessen • AVFL Series Installation Manual • 4099-901 Rev. A • 03/21

In extreme cases, lab tests have shown yellow pigments

fading out of paints over time due to heat. Vent run and installation location will have an e󰀨ect on wall temperature and fading. If fading occurs, consider avoiding paint that contains yellow pigment.

In regards to the sheetrock mud, apply a smooth, even

layer, covering a wide area of the wall for the best results. For best results, follow the tips below.

To Reduce the Risk of Sheetrock Cracking:

Use all purpose joint compound.

Use eggshell paint (100% acrylic latex paint, gloss or semi-gloss).

WARNING! Risk of Fire! DO NOT apply combustible materials beyond the minimum clearances. Comply with

all minimum clearances to combustibles as specied in

this manual. Overlapping materials could ignite and will interfere with proper operation of doors and louvers.

WARNING! Risk of Fire! DO NOT install drywall or other combustible materials directly onto the installed non-combustible board. Overlapping materials could ignite.

To Avoid Sheetrock Cracking:

DO NOT

Use a quick set or light weight joint compound.

Use at paint.

Install Option #1

7-1/4”

Install Option #1

NON-COMBUSTIBLE

Install Option #2

Install Option #1

Install Option #2

Figure 8.1 - Finishing Around Appliance

Monessen • AVFL Series Installation Manual • 4099-901 Rev. A • 03/21

NON-COMBUSTIBLE

Install Option #2

Finish with non-combustible up to appliance opening. Cannot cover the opening so that screen can be removed.

Install Option #1

B. Operation During A Power Outage

The IntelliFire™ Plus ODS intermittent pilot ignition system

comes with a battery backup system that enables the

system to operate in a power outage. The system o󰀨ers

seamless transition from household AC power to battery

backup. A factory-installed battery pack is located in the control cavity of the appliance. See Figure 8.2. Battery longevity and performance will be a󰀨ected by long term exposure to the service temperatures of this appliance.

NOTICE: Batteries should only be used as a power source in the event of an emergency power outage. Batteries should not be used as a primary long-term power source.

To Operate Appliance Using Battery Power (DC):

1. Access the control cavity of the appliance. See Figure

8.2 for location. Lift the screen frame o󰀨 of the appliance. Remove the deection glass and crushed glass media from the burner assembly. Lift the burner assembly and support with the 2 burner supports.

2. Locate the battery tray and insert four AA cell batteries.

See Figure 8.2. Battery polarity must be correct or module damage will occur. A complete wiring diagram

is included in the Electrical section of the appliance

Installation Manual.

3. Lower the burner assembly. Reinstall the crushed

glass media and deection glass.

4. Turn the appliance on according to the instructions

below for the appropriate type of control:

Standard Wall Switch or Factory-Installed ON/OFF

Switch:

• Toggle the switch as you would under normal

circumstances.

Wireless Remote:

• Remote receiver is integrated into the ignition module

• Use the remote to turn the appliance on.

• To preserve battery life, do not use the HI/LO ame or

THERMOSTAT options.

Standard Wall Switch or Factory-Installed ON/OFF Switch:

• Toggle the switch to OFF.

• Remove the deection glass and crushed glass media from the burner assembly. Lift the burner assembly and support with the 2 burner supports.

• Remove the batteries from the battery tray.

• Lower the burner assembly. Reinstall the crushed

glass media and deection glass.

Wireless Remote:

• Use the remote to turn the appliance o󰀨.

• Remove the deection glass and crushed glass media

from the burner assembly. Lift the burner assembly and support with the 2 burner supports.

• Remove the batteries from the battery tray.

• Lower the burner assembly. Reinstall the crushed

glass media and deection glass.

Engine Support

8.2 - Control Cavity Location (Cut away front view only for

location purpose, no direct access from front)

Battery Pack

NOTICE: Some functionality will be lost when using battery backup including lights, or any other auxiliary functions that require household 110-120 VAC power.

Monessen • AVFL Series Installation Manual • 4099-901 Rev. A • 03/21

Control Module

8.3 - Battery Tray Location

C. Detailed Component Operating Instruc-

tions— Intellire™ Plus ODS

Control Module Operation

1. The control module has an ON/OFF/REMOTE selector switch that must be set. See Figure 8.5.

OFF Position: Appliance will ignore all power inputs

and will not respond to any commands from a wall

switch or remote. The appliance should be in the OFF

position during installation, service, battery installation, fuel conversion, and in the event that the control goes

into LOCK-OUT mode as a result of an error code.

ON Position: Appliance will ignite and run continuously

in the HI ame setting, with no adjustment in ame output. This mode of operation is primarily used for initial installation or troubleshooting.

REMOTE Position: Appliance will initiate commands

from an optional wired wall switch and/or the wireless

remote (RC300).

2. If using a wired wall switch with the module in REMOTE mode, the ame output can be adjusted with the HI/LO selector switch on the module. See Figure 8.5. Note that the ame HI/LO selector switch will become inactive once a remote control (RC300) is programmed to the control module. Note that the control module will always ignite the replace on HI and remain so for the initial 10 seconds of operation. If the HI/LO is switched to the LO position, the ame output will automatically drop to the lowest setting after the ame has been established for 10 sec. After this 10 second period, the ame can be adjusted from HI to LO with the switch.

3. The control module has safety feature that automatically shuts down the replace after 9 hours of continuous operation without receiving a command from the RC300 remote.

4. If you intend to use both a wired wall switch and the RC300 remote control to operate your replace, the

wall switch will override any commands given by the

remote.

5. Module Reset

This module may lock-out under certain conditions.

When this occurs, the appliance will not ignite or

respond to commands. The module will go into

lock-out mode by emitting three audible beeps, then

continuously displaying a RED/GREEN error code at its status indicator LED.

• Check battery tray. Remove batteries if installed.

Batteries should only be installed for use during power

outages.

• Locate the module selector switch. (See Figure 8.5).

• Set the module selector switch to the OFF position.

• Wait ve (5) minutes to allow possible accumulated gas to clear.

• Set the module selector switch to ON or REMOTE position.

• Start the appliance.

WARNING! Risk of Explosion! DO NOT press the mod-

ule selector switch more than one time within a ve minute time period. Gas could accumulate in rebox. Call a qualied service technician.

Nine Hour Safety Shutdown Feature

The appliance has a safety feature that automatically

shuts down the replace after nine hours of continuous

operation without receiving a command from the wall

switch or remote.

Appliance ON/OFF

Use the IntelliFire™ Plus Remote Control to control the ON/OFF function of the appliance. Follow instructions included with the remote control. If desired, a wall switch may be installed to control the ON/OFF function of the appliance.

FLAME HI/LOW

SWITCH

Figure 8.5 - Control Module

INDICATOR LED

MODULE

STATUS

SELECTOR

SWITCH

NG/LP GAS-TYPE SELECTOR SWITCH

Monessen • AVFL Series Installation Manual • 4099-901 Rev. A • 03/21

Manual Appliance Shuto󰀨

In the unlikely event that the remote wall switch malfunc-

tions and will not turn o󰀨 the appliance, call your dealer for service assistance. In the meantime, you may choose one of the following actions to turn o󰀨 the appliance:

CAUTION! Risk of burns! Appliance surfaces are hot

when operating and during cool down. Use care and wear

gloves when opening the front and accessing compo-

nents inside the appliance.

Check remote screen for battery level indicator, replace

the batteries if low battery is indicated.

The appliance may be manually shut down by one of the following methods:

Turn o󰀨 power to the appliance (if back-up batteries

are not installed):

• Unplug appliance from electrical source, if you cannot unplug then:

• Locate house circuit breaker for appliance.

• Turn o󰀨 the circuit breaker.

• Turn the reset switch in the front face to the o󰀨 position.

LED Control

(For the AVFL42NIP-BU, AVFL42PIP-BU, AVFL42NIPRB, and AVFL42PIP-RB the AVFL42LED kit must be pur-

chased separately if LED lights are needed)

Appliance On/O󰀨 Switch

On/Hi/Med/Lo/

O󰀨

Multicolored

LED Lights

Color Selection

Figure 8.6 Wall Control Switch

• Multi-colored LED lights - The two (2) round buttons

on the right in Figure 8.6 turn LEDs ON (HI/MED/ LO) and OFF function and cycle through the color selection.

1. Color Fade - This setting will cycle through the colors shown below at a slower rate.

2. Color Fade Slow - This setting will cycle through the colors shown below at a slower rate.

3. Pause Color - This setting will pause the slow color fade at any color in the color wheel.

4. Solid Color Selection - This setting will cycle through

each color in order:

• Blue

• Violet

• Red

• Yellow

• Green

• Cyan

• White

CAUTION! Risk of Electrical Shock! Avoid touching wires and electrical components in appliance control cavity.

Monessen • AVFL Series Installation Manual • 4099-901 Rev. A • 03/21

D. Troubleshooting

With proper installation, operation, and maintenance your gas appliance will provide years of trouble-free service. If you do experience a problem, this troubleshooting guide will assist a qualied service technician in the diagnosis of a problem and the corrective action to be taken. This troubleshooting guide can only be used by a qualied service technician. Contact your dealer to arrange a service call by a qualied service technician.

IntelliFire™ Plus ODS Ignition System

Symptom Possible Cause Corrective Action

1. Pilot won’t light.

The igniter/module makes noise, but no

spark.

2. Pilot won’t light,

there is no noise or

spark.

3. Pilot sparks, but pilot will not light.

A. Incorrect wiring. Verify “S” wire (white) for sensor and “I” wire (orange) for igniter are

connected to correct terminals on module and pilot assembly.

B. Loose connections or electrical

shorts in the wiring.

C. Igniter gap is too large. Verify gap of igniter to right side of pilot hood. The gap should be

A. No power, transformer installed

incorrectly, or depleted batteries.

B. A shorted or loose connection in

wiring conguration or wiring harness.

C. Improper wall switch wiring. Verify that 110-120 VAC power is “ON” to junction box.

D. Module not grounded. Verify black ground wire from module wire harness is grounded to

A. Gas supply is o󰀨 or lacking pres-

sure.

Verify no loose connections or electrical shorts in wiring from module to pilot assembly. Verify connections underneath pilot assembly are tight; also verify igniter and ame sense wires are not grounding

out to metal chassis, pilot burner, pilot enclosure, mesh screen if

present, or any other metal object.

approximately .095 in. (2.41 mm) to .135 in. (3.43 mm).

Verify that transformer is installed and plugged into module. Check voltage of transformer at connection to module. Acceptable readings of a good transformer are between 6.4 and 6.6 volts DC. Battery power supply voltage must be at least 4 volts. If less than 4 volts, replace batteries.

Remove and reinstall the wiring harness that plugs into module. Verify there is a tight t. Verify pilot assembly wiring to module. Remove and verify continuity of each wire in wiring harness. Replace any damaged components.

metal chassis of appliance.

Verify that incoming gas line ball valve is “open." Verify that inlet pressure reading is within acceptable limits.

B. Igniter gap is too large. Verify gap of igniter to right side of pilot hood. The gap should be

approximately .095 in. (2.41 mm) to .135 in. (3.43 mm).

C. Module is not grounded. Verify module is securely grounded to metal chassis of appliance.

D. Pilot valve solenoid voltage is out

of spec.

Monessen • AVFL Series Installation Manual • 4099-901 Rev. A • 03/21

Verify that 1.5 to 1.8 VDC is supplied to pilot solenoid from module. If below 1.5 volts, replace module. If 1.5 volts or greater, replace valve.

Intellire™ Plus Ignition System - (continued)

Symptom Possible Cause Corrective Action

4. Pilot lights but continues to spark, and main

burner will not ignite.

(If the pilot continues to spark after the

pilot ame has been lit, ame rectication has not occurred.)

5. Appliance lights and

runs for a few minutes and then shuts down and/or appliance cycles

on and o󰀨.

A. A shorted or loose connection in ame

sensing rod.

B. Poor ame rectication or contaminated

ame sensing rod.

C. Module is not grounded. Verify module is securely grounded to metal chassis of ap-

D. Damaged pilot assembly or contami-

nated ame sensing rod.

A. A shorted or loose connection in ame

sensing rod.

Verify all connections to wiring diagram in manual. Verify connections underneath pilot assembly are tight. Verify ame sense or igniter wires are not grounding out to metal

chassis, pilot burner, pilot enclosure or screen if present, or

any other metal object.

With xed glass assembly in place, verify that ame is engulng ame sensing rod on left side of pilot hood. Flame

sensing rod should glow shortly after ignition. With a multi- meter, verify that current in series between module and

sense lead is at least 0.14 microamps. Verify correct pilot orice is installed and gas inlet is set to pressure specications. Polish ame sensing rod with ne steel wool to

remove any contaminants that may have accumulated on

ame sensing rod.

pliance. Verify that wire harness is rmly connected to the module.

Verify that ceramic insulator around the ame sensing rod is not cracked, damaged, or loose. Verify connection from ame sensing rod to white sensor wire. Polish ame sensing rod with ne steel wool to remove any contaminants that may have accumulated on ame sensing rod. Verify continuity with a multi-meter with ohms set at lowest range. Replace pilot if any damage is detected.

Verify all connections to wiring diagram in manual. Verify connections underneath pilot assembly are tight. Verify ame sense or igniter wires are not grounding out to metal

chassis, pilot burner, pilot enclosure or screen if present, or

any other metal object.

B. Poor ame rectication or contaminated

ame sensing rod.

C. Logs are set up incorrectly. Remove and reinstall logs per the log placement

D. Damaged pilot assembly or contami-

nated ame sensing rod.

Verify that ame is engulng ame sensing rod on left side of pilot hood. Flame sensing rod should glow shortly after ignition. With a multi-meter, verify that current in series between module and sense lead is at least 0.14 microamps. Verify correct pilot orice is installed and gas inlet is set to pressure specications. Polish ame sensing rod with ne

steel wool to remove any contaminants that may have ac-

cumulated on ame sensing rod.

instructions.

Monessen • AVFL Series Installation Manual • 4099-901 Rev. A • 03/21

E. Accessories

• Remote Controls, Wall Controls and Wall Switches

Follow the instructions supplied with the control installed to operate your appliance:

For safety:

• Install a switch lock or a wall/remote control with child protection lockout feature.

• Keep remote controls out of reach of children.

Contact your dealer if you have questions.

• Crushed Glass Media

-Diamond

-Bronze

-Onyx

-Sapphire

• 42” LED Light Kit (AVFL42LED)

LED light kit for AVFL42 that includes a wall switch for the appliance

• Driftwood Log Set (CDLS)

Driftwood log set (2 logs for AVFL42 and AVFL48, 3 logs for AVFL60)

• Optional Finish Kits

The AVFL appliances have three optional nish kits for each appliance size

-AVFL42TKI-B, AVFL48TKI, AVFL60TKI-B - Black inside t trim kit

-AVFL42CFVC, AVFL48CFVC, AVFL60CFVC-B - Contemporary veined copper face

-AVFL42CFSB, AVFL48CFSB, AVFL60CFSB - Contemporary satin black face

• Optional Stone Kit (STONEKIT)

-The look of water tumbled stones adds interest and appeal to your appliance.

• Outdoor Kit for AVFLST48 (AVFLSTSSODK)

• Black Magic Glass Kit for AVFL42 (AVFL42BGL)

Monessen • AVFL Series Installation Manual • 4099-901 Rev. A • 03/21

Monessen, a brand of Hearth & Home Technologies

7571 215th Street West, Lakeville, MN 55044

www.monessenhearth.com

Please contact your Monessen dealer with any questions or concerns.

For the location of your nearest Monessen dealer,

please visit www.monessenhearth.com

Monessen • AVFL Series Installation Manual • 4099-901 Rev. A • 03/21

Monessen AVFLST48 Monessen Artisan 48 See Through Fireplace Installation and Operation Instructions

Specifications and Main Features

Frequently Asked Questions

User Manual