Monessen Hearth AVFL42NTSC, AVFL42PTSC User Manual

AVFL Vent Free Fireplace System
Installation & Operating Instructions

Models: AVFL42NTSC & AVFL42PTSC

WARNING: If the information in this manual

is not followed exactly, a re or explosion may
result causing property damage, personal

injury or loss of life.

• Do not store or use gasoline or other

ammable 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 ventil-

ation air must be provided. Refer to Page 7.

Monessen • AVFL42 Installation Instructions • 20305467 Rev. B • 02/17

INSTALLER: Leave this manual with the appliance.

CONSUMER: Retain this manual for future

reference.

AVFL Vent Free Fireplace

CONTENTS

Thank you and congratulations on your purchase of a Monessen replace.

PLEASE READ THE INSTALLATION AND OPERATION INSTRUCTIONS BEFORE USING THE APPLIANCE!

IMPORTANT: Read all instructions and warnings carefully before starting installation.

Failure to follow these instructions may result in a possible re hazard and will void the warranty.

Important Safety Information .................................... 3

Building Code Information ......................................... 4

Product Features ......................................................... 5

AVFL42 Controls ...................................................... 5

Gas Specications & Orice Size ............................. 5

Gas Pressures .......................................................... 5

Fireplace and Framing Dimensions .......................... 6

Pre-installation Information ........................................ 7

Getting Started .........................................................7

What You Will Need ..................................................7

Planning the Installation ...........................................7

Adequate Combustion and Ventilation Air ................ 7

Fireplace Location .................................................... 8

Clearances & Height Requirements ......................... 9

Fireplace Installation ................................................. 10

Secure Fireplace to Framing .................................. 10

Finishing Material ...................................................10

Noncombustible Facing Installation ........................ 10

Connect the Gas .................................................... 11

Check Gas Pressure ..............................................12

Electrical Installation................................................. 13

Wiring Junction Box ............................................... 13

®

Signature Command

Wiring Diagram ................... 14

Final Installation ........................................................ 15

Bulb Installation ...................................................... 15

Installation of Air Deection Glass .......................... 17

Glass Only Placement ............................................ 17

Glass & Optional Stone Kit Placement ................... 17

Placement of Optional Logs ...................................18

Operating Instructions .............................................. 19

For Your Safety Read Before Lighting .................... 19

Turning On Unit ...................................................... 20

To Turn Off Gas to Appliance .................................. 20

Signature Command

®

System Operation ................ 21

Features .................................................................21

Battery Installation .................................................. 21

System Conguration/Setup ................................... 21

Cold Climate Option ...............................................21

Functions/Operation ............................................... 23

Touch Screen Remote Control Operation ............... 24

Troubleshooting ......................................................29

Maintenance and Cleaning ....................................... 30

Flame Appearance .................................................30

Check the Pilot Flame ............................................30

Check Burner Flame Appearance .......................... 30

Cleaning and Servicing .......................................... 31

Replacing Light Bulbs ............................................. 31

Operation and Optional Accessories ...................... 33

Operating Information ............................................. 33

Optional Accessories .............................................. 33

Troubleshooting ........................................................34

Signature Command

®

System ................................ 35

Replacement Parts .................................................... 36

Firebox ................................................................... 36

Logs ........................................................................37

Stones .................................................................... 37

Signature Command® System ................................ 38

Limited Lifetime Warranty Policy ............................. 39

2

Monessen • AVFL42 Installation Instructions • 20305467 Rev. B • 02/17

IMPORTANT SAFETY INFORMATION

AVFL Vent Free Fireplace

INSTALLER

Please leave these instructions with the appliance.

OWNER

Please retain these instructions for future reference

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

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

explosion or carbon monoxide poisoning.

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

patterns.

WARNING

• 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 traf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. To prevent malfunction and/or
sooting, an unvented gas heater should be cleaned

before use and at least annually by a professional

service person. More frequent cleaning may be
required due to excessive lint from carpeting,
bedding materials, etc. It is imperative that control
compartments, burners and circulating air passage­ways be kept clean.

7. WARNING: Any change to this heater or its controls
can be dangerous.

8. Unvented gas heaters are a supplemental zone
heater. They are not intended to be the primary
heating appliance.

9. 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.

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

the absence of local codes, with the National Fuel

Gas Code, ANSI Z223.l/NFPA54.

11. This unit complies with ANSI Z21.11.2 Unvented
Heaters, latest edition.

12. Do not install the heaters in a bathroom or bedroom.

13. Correct installation of the ceramic ber logs, proper
location of the heater, and annual cleaning are neces­sary to avoid potential problems with sooting. Sooting,
resulting from improper installation or operation, can
settle on surfaces outside the replace. Refer to log
placement instructions for proper installation.

14. Avoid any drafts that alter burner ame patterns. Do not
allow fans to blow directly into replace. Do not place
a blower inside burn area of rebox. Ceiling fans may
create drafts that alter burner ame patterns. Sooting
and improper burning will occur.

15. Caution: Candles, incense, oil lamps, etc. produce
combustion byproducts 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.

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

sions for adequate combustion and ventilation air must

be provided. Refer to Page 7.

17. 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.

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

19. Unvented gas heaters 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.

20. During manufacturing, fabricating and shipping, various

components of this appliance are treated with certain

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

.

Monessen • AVFL42 Installation Instructions • 20305467 Rev. B • 02/17

3

AVFL Vent Free Fireplace

harmful but may produce annoying smoke and smells
as they are burned off 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 two to three

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.

21. 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.

22. 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).

23. The appliance must be isolated from gas supply piping

system by closing its equipment shutoff 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).

24. 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.

25. Never burn solid fuels in a replace where a unvented
room heater is installed.

IMPORTANT SAFETY INFORMATION

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

This appliance is only for use with the type of

gas indicated on the rating plate. This appliance
is not convertible for use with other gases.

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

or

National Fire Protection Association, Inc.

Batterymarch Park

Quincy, MA 02269

4

Monessen • AVFL42 Installation Instructions • 20305467 Rev. B • 02/17

PRODUCT FEATURES

AVFL Vent Free Fireplace

AVFL42 CONTROLS

Thermocouple
Module

Command Center

Control Board

AC Module

Figure 1 –
AVFL42 Controls (Control Access Door Shown Open)

FP3020

GAS SPECIFICATIONS & ORIFICE SIZE

MODEL FUEL

AVFL42NTSC N AT. 37,000 24,500 2.20 mm

AVFL42PTSC LP. 36,000 28,500 #55

MAX. INPUT

(BTU/h)

NOTE: For LP models an external regulator is required

to reduce supply pressure to a maximum of 13" w.c.

MIN. INPUT

(BTU/h)

ORIFICE

SIZE

GAS PRESSURES

NATURAL PROPANE (LP)

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

Inlet Maximum 10.5" w.c. 13.0" w.c.

Regulator Pressure

Setting

Pilot Regulator 3.5" w.c. —

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

Monessen • AVFL42 Installation Instructions • 20305467 Rev. B • 02/17

5

AVFL Vent Free Fireplace

48 3/4" (1238 mm)

34 1/2"

(876 mm)

" (13 mm)

1/2
or 5/8

" (16 mm)

FIREPLACE AND FRAMING DIMENSIONS

Minimum

Rough

Depth

13"

(330 mm)

13 1/2"

(343 mm)

48 3/4" (1238 mm)

68 15/16" (1751 mm)

Figure 2 –
Fireplace and Framing Dimensions

Minimum

Rough
Height

32"

(813 mm)

44" (1118 mm)

Rough Opening Width

37 1/2" (953 mm)

39 3/4" (1010 mm)

43" (1092 mm)

(386 mm)

13 1/2"

(343 mm)

6 1/16"

(154 mm)

15 3/16"

2 1/4"

(57 mm)

28"

(711 mm)

(813 mm)

4 5/8"

(118 mm)

32"

6

Monessen • AVFL42 Installation Instructions • 20305467 Rev. B • 02/17

PRE-INSTALLATION INFORMATION

AVFL Vent Free Fireplace

GETTING STARTED

Check your packing list to verify that all listed parts have

been received. You should have the following:

• Unvented gas heater

• Two (2) anchoring screws

• Installation/operating instructions

• 5" non-combustible board

• 2" x 32" deector glass

• Two (2) bags reglass

• Twelve (12) 20 watt bulbs

• One (1) 100 watt bulb

• TSFSC 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.

WHAT YOU WILL NEED

You must have the following items available before pro­ceeding with installation:

• External regulator (for propane/LPG only)

• Manual shutoff valve

• Piping which complies with local codes

• Sediment trap

• Phillips head screwdriver

• Tee joint.

• Pipe sealant approved for use with propane/LPG
(Resistant to sulfur compounds)

• Pipe wrench

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 trafc areas.

WARNING

• In windy or drafty areas.

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

with care.

WARNING

PLANNING THE INSTALLATION

In planning the installation for the replace it is necessary

to determine where the unit 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 different sequence.

1. Position replace in desired location. Refer to the Fire-

place Location (page 8, Figure 3) and Clearances and
Height Requirements (page 9, Figures 4 and 5) sections
and Fireplace and Framing Dimensions (page 6, Figure

2) illustration found in this manual.

NOTE: Be sure all packing material has been removed

from under 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 13). (Electrical
connections should only be performed by an experi-

enced, licensed certied service person).

4. Plumb gas line. Refer to the Connect the Gas (page
11, Figure 7) section found in this manual. (Gas

connections should only be performed by an experi-

enced, licensed/certied service person).

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

ADEQUATE COMBUSTION AND 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 (4.8m3 per kw) of

the aggregate input rating of all appliances installed in that

pace, 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 1011 kg per pa/sec-m2) or less with openings
gasketed or sealed, and

b. Weather stripping has been added on openable win-

dows and doors, and

Monessen • AVFL42 Installation Instructions • 20305467 Rev. B • 02/17

7

AVFL Vent Free Fireplace

PRE-INSTALLATION INFORMATION

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.

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

50

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)

50

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)

50

Counter

Fireplace

FIREPLACE LOCATION

This unvented gas heater requires no outside venting and

burns cleanly and ef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 replace. 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 9. Minimum clearances

to combustibles must be maintained.

• Location must not be affected 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 trafc areas and

away from furniture and draperies due to heat from

rebox.

• Never obstruct the front opening of the unvented re-

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

• Minimize modications to existing construction. Refer

to Figure 3 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.

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

WARNING

International Fuel Gas Code or applicable
local codes.

8

Monessen • AVFL42 Installation Instructions • 20305467 Rev. B • 02/17

W

H

Figure 3 –
Possible Fireplace Locations

FP3029

PRE-INSTALLATION INFORMATION

AVFL Vent Free Fireplace

CLEARANCES AND HEIGHT REQUIREMENTS

Ensure that minimum clearances shown in Figures 4 and
5 are maintained. Left and right clearances are determined

when facing the front of the rebox.

Follow these instructions carefully to ensure safe instal-

lation. Failure to follow these requirements may create a
re hazard.

Sidewall Clearances — The clearance from the inside of
the appliance to any combustible adjacent wall should not

be less than 6". Figure 4

Ceiling Clearance — The ceiling or any other combustible

material must be at least 36" from the rebox opening.

Figure 4

Back Wall Clearance — The appliance may be placed

against a combustible back wall.

NOTE: When installing at oor level and using the wide
contemporary face, the replace must be raised up a
minimum of 3/4" to allow clearance for ooring material.

The dimensions shown in Figures 4 and
5 are minimum clearances to maintain

when installing this heater. Left and right
clearances are determined when facing the

front of the heater.

Follow these instructions carefully to

WARNING

ensure safe installation. Failure to follow

instructions exactly can create a fire
hazard.

Floor Clearance — The replace may be installed directly
on a combustible oor or a raised platform of an appropriate
height. Do not place replace 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 replace rests on a solid continuous oor or platform

with appropriate framing for support so that no cold air can

enter from under the rebox. See note below regarding
oor installation with wide contemporary faces.

Mantel clearances — Must meet the clearance require­ments detailed in Figures 4 and 5.

Wall

12"

Stud

Insulation

Board

36" Minimum

From Opening

12

Depth

6

" Max.

" Min.

1

2

/2" Max

Depth

28

" Min.

From Opening

18

" Min.

From Opening

FP3006

28"

Top of Fireplace
Opening

SIDE VIEW

Fireplace
Opening

TOP VIEW

23"

6"

18"

1"

2¹⁄₂"

3"

Standoff

1

2

/2"

FP3007

1¹⁄₂"

3¹⁄₂"

4¹⁄₂"

45°

5"

6"

FP3008

Figure 4 –
Sidewall and Ceiling Clearances

Monessen • AVFL42 Installation Instructions • 20305467 Rev. B • 02/17

Figure 5 –
Mantel Clearances

9

AVFL Vent Free Fireplace

44"

SECURE FIREPLACE TO FRAMING

FIREPLACE INSTALLATION

The replace must be secured to the framing studs as
shown in Figure 6. Use four (4) screws to attach replace
to framing. The side nailing anges are 1⁄2" or 5⁄8" to accom­modate different wall thickness.

Never install combustible materials over
front face of replace.

NOTE

FINISHING MATERIAL

NOTE: Any remote wiring (i.e. remote control, wall

switch), must be done prior to nal nishing to avoid costly
reconstruction.

Only noncombustible materials (i.e. brick, tile, slate, steel,
or other materials with a UL re rating of Zero) may be
used to cover the black painted face of the appliance. It is

permissible to bring combustible wall board to the top of
the standoffs on the top and to the wall board stand-offs

on the sides of the unit. A 300°F minimum adhesive may
be used to attach facing materials to the black surface. If
joints between the nished wall and the replace surround
are sealed, a 300°F minimum sealant material (General
Electric RTV103 or equivalent) must be used.

NOTE: Fireplace may be installed on top of framing or
platform constructed of combustible materials which do

not protrude beyond the face.

Framing
Members

5”

Nailing
Flange

Screws

Nailing
Flange

Screws

Figure 6 –
Secure Fireplace to Framing Studs

Noncombustible Material

FP3009

Nailing
Flange

NONCOMBUSTIBLE FACING INSTALLATION

CAUTION: The noncombustible wall board supplied with

this unit can be damaged if dropped or struck. Handle
with care.

1. Using drywall screws secure noncombustible board to

the two brackets on top of unit. IMPORTANT: To avoid
cracking the board, pre-drill holes prior to securing to the
unit/framing.

2. Wipe any debris or dust from the noncombustible board
and drywall.

3. It is highly recommended to prime the facing using a
quality primer prior to taping and mudding. This will
ensure proper adhesion of both the tape and mud. The
supplied board is very porous.

4. Tape the seams using a mesh type tape.

5. Mud seams as normal. We recommend using a product
called Durabond high strength compound for the rst
coat. This product can be purchased at any hardware
store. Follow manufacturer's recommendations for curing
the mud. NOTE: Depending upon the nal nishing
method, use a minimum rated 300 degree sealant, dry­wall compound or thin set to seal the side and top joints.

6. Prime wall for a second time for proper adhesion of paint.

Noncombustible board

43"

MOUNTING POINTS

32"

Figure 6A –
Noncombustible facing installation

5"

10

Monessen • AVFL42 Installation Instructions • 20305467 Rev. B • 02/17

FIREPLACE INSTALLATION

CONNECT THE 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.

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

WARNING

and plugged 1⁄8 " NPT pressure tapping
point should be installed upstream of the

appliance. Figure 7

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 7

AVFL Vent Free Fireplace

CHECK GAS TYPE: The gas supply must

be the same as stated on the heater’s rating
plate. If the gas supply is different, DO NOT
INSTALL THE HEATER. Contact your dealer

WARNING

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 heat­ers 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.

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

WARNING

DO NOT USE OPEN FLAME TO CHECK
FOR GAS LEAKS.

WARNING

Figure 7 –
Gas Connection

To Fireplace

Pipe
Coupling

Stainless
Flexible Tube

Manual Shutoff
Valve

Sediment
Trap

Monessen • AVFL42 Installation Instructions • 20305467 Rev. B • 02/17

Pipe Nipple

Pipe

Tee Joint

Cap

Locations Pressure Tapping
Point Installation

Gas Supply
Inlet

3" minimum

FP2447

11

AVFL Vent Free Fireplace

FIREPLACE INSTALLATION

CHECK GAS PRESSURE

Figure 8

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

Open control access door at bottom front of unit to nd
valve and regulator referred to below.

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 pressure
reading, be sure and turn captured screw clockwise rmly
to reseal. Do not over torque. Check for gas leaks.

Test Port 'A'

FP3036

Figure 8 –
Pressure Test Point Location – Signature Command® Valve

12

Monessen • AVFL42 Installation Instructions • 20305467 Rev. B • 02/17

ELECTRICAL INSTALLATION

WIRING JUNCTION BOX

1. Before installing, wire the receptacle into an electrical
circuit. This should be done before framing the re­place. Wire with minimum 60° C wire in accordance
with prevailing codes.

2. Remove the external junction box cover by removing
the screw from the right side of the outside rebox wall.
Junction box was installed at the factory.

3. The junction box cover has a factory installed “romex”
style strain relief connector. After connecting the wires,
route the wire leads through this connector.

Label all wires prior to disconnection when

servicing controls. Wiring errors can cause

improper and dangerous operation. Verify

proper operation after servicing.

WARNING

For vent free SC System, the unit will continue to burn
during power loss to AC only with batteries installed.
Without power, the unit will shut down without batteries

installed but can be started with fresh batteries installed

from the Command Center.

AVFL Vent Free Fireplace

Electrical connections should only be performed
by a qualied licensed electrician. Main power
supply must be turned off before connecting to

the main electrical power supply or performing
service.

CAUTION

Electrical Grounding Instructions:
This appliance is equipped with a three-prong
(grounding) plug for your protection against
shock hazard and should be plugged directly
into a properly grounded three prong recepta-

WARNING

cle.

IMPORTANT: Always check local building codes. This in-

stallation must comply with local regulations as well as

the National Electric Code.

Junction Box

Figure 9 –
Junction Box Wiring Diagram

Monessen • AVFL42 Installation Instructions • 20305467 Rev. B • 02/17

120V AC

60Hz

Factory Supplied
Not Supplied

13

AVFL Vent Free Fireplace

Wall Switch

SIGNATURE COMMAND WIRING DIAGRAM

Back Row
20W x 6 Lamps

BLACK

Opt. Blower

WHITE

BLACK

ELECTRICAL INSTALLATION

Front Row
20W x 6 Lamps

PLUG-IN

A/C MODULE

CONNECTOR “A”

TO JUNCTION BOX

IN FIREPLACE

WHITE

WHITE
BLACK

GREEN

Optional

Blower

Top Lamp
100w

Hearth

Light

WHITE

Top Light

BLACK

WHITE
BLACK

Green

WHITE
BLACK

NOTE: Wall switch wires must
be connected together if a wall

switch is not being used.

Gas In

Thermocouple
Module

Black

Yellow

Control Board

Plug in

Connector “A”

Ground

Plug-in Connector
Control Board to
Solenoid

Thermocouple

Plug-in Connector
Stepper Motor to
Control Board

DC Power/Green

Pilot

Orange

RF Receiver
ON/OFF Button

Black / Thermopile
Red / Thermopile

Sensor

Ignitor / Sparker

Plug-in Connector
Control Board to Command Center

Red

OFF/LO

LED

ON/HI

Master Switch

Command Center

Gas Out

Optional

Figure 9 –
Signature Command

14

®

Wiring Diagram

Monessen • AVFL42 Installation Instructions • 20305467 Rev. B • 02/17

Valve

Pilot Gas Tubing

FP3010

FINAL INSTALLATION

AVFL Vent Free Fireplace

BULB INSTALLATION

Turn OFF the main power supply before perform-

ing any service work on the unit, including install­ing or replacing light bulbs.

CAUTION

NOTE: This unit is shipped without bulbs installed to pre-

vent any damage to the bulb lament during transport.
This unit is shipped with a total of 13 bulbs (twelve 20W
bulbs and one 100W bulb). These instructions apply to
new installations only. If replacing bulbs after the installa­tion is complete, see page 31 for instructions.

Top light

location

Porcelain

panel screw

LOWER LIGHT BAR BULB INSTALLATION

1. Remove air deection glass from the unit and place
on a at, clean surface.

2. Using a Phillips screwdriver remove the screws (one

each) holding the left and right porcelain panels in

place.

3. Remove the retainer clips at bottom of porcelain
panels. Carefully remove the panels from the unit
placing them on a clean level surface. NOTE: The

rear porcelain panel is held in place by the left and
right panel and could fall forward if not supported

during removal of the side panels.

Porcelain

panel screw

Figure 10–
Top Light Position; Porcelain Panel Screw Location

TOP LIGHT BULB INSTALLATION

1. Remove three screws holding light cover in place
(as shown in Figure 11)

2. Insert (1) 100W bulb provided into socket

3. Replace top light cover with three screws

Light cover

screws

Figure 11–
Top Light Screws

Monessen • AVFL42 Installation Instructions • 20305467 Rev. B • 02/17

Figure 12–
Porcelain Panel Screw Location

4. With side panels removed the rear porcelain panel
can be removed from the unit and placed on a clean,
level surface.

5. Remove nine screws that secure the front hearth in
place and remove from unit. Figure 14

Retainer clip

Figure 13–
Porcelain Panel Retainer Clip Location

15

AVFL Vent Free Fireplace

FINAL INSTALLATION

6. Remove ve screws that secure the rear hearth in
place and remove from unit. Figure 14

7. Figure 15 shows bulb placement for front and rear
light bars. Insert bulbs in sockets.

8. With (twelve 20W) bulbs installed in front and rear
light bar, reinstall the rear hearth rst with ve
screws that were removed earlier. Figure 14

9. Reinstall the front hearth with nine screws removed
earlier. Figure 14

Five Rear Hearth Screws

10. Place the rear porcelain panel back in place and

reinstall the left and right side using same screws

that were removed earlier. Replace the retainer clips
at bottom of porcelain panels.

11. Re-install the air deection glass before proceeding
to add decorative media (next page).

Figure 14–
Hearth Screw Locations

Figure 15–
Lower Light Bulb Location

Nine Front Hearth Screws

Rear Lower Light Bulbs

Front Lower Light Bulbs

16

Monessen • AVFL42 Installation Instructions • 20305467 Rev. B • 02/17

FINAL INSTALLATION

AVFL Vent Free Fireplace

INSTALLATION OF AIR DEFLECTION
GLASS

NOTE: The 32" deector glass must be installed prior

to placing any reglass or stone media on the burner.
To install the air deection glass simply place the tabs

located at the bottom of the glass into the slots at either

end of the burner oor, in front of the burner ports. The
glass should stand upright, neither leaning forward nor
backward.

GLASS ONLY PLACEMENT

NOTE: Two (2) bags of glass are supplied with the replace.

Both bags may be used to cover the entire oor and burner.

We advise against using additional glass as too much can
cut off the proper amount of air the burner needs to burn

cleanly. This may cause sooting.

1. Spread glass evenly in one layer over the entire oor

and burner. It is important to not have the glass too thick
on ported area (single layer only).

2. Turn burner on and adjust glass over ported areas to
achieve an even, clean ame.

GLASS AND OPTIONAL STONE KIT PLACEMENT

1. For best results, spread glass evenly over the entire

oor and burner making sure the glass is not too thick
over the burner ports (single layer only). Figure 16.

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. Figure 16 and 17.

3. Turn burner on and adjust glass over the ported area

to achieve an even, clean ame. Page 30, Figure 37

Air Deection Glass Placement (before) Air Deection Glass Placement (after)

Examples of

Stone Placement

Figure 16 –

Air Deection Glass and Stone Placement

Monessen • AVFL42 Installation Instructions • 20305467 Rev. B • 02/17

Rear VentBurner Surface

17

AVFL Vent Free Fireplace

Figure 17 –

Stone Placement

PLACEMENT OF OPTIONAL LOGS

WARNING: Turn off replace and allow to cool com­pletely before beginning installation.

Kit Contents:

• Two (2) ceramic ber driftwood logs

• Four (4) log support pin brackets

• Eight (8) #8 bracket mounting screws

NOTE — Do not handle logs with your bare hands. Always

wear gloves to prevent skin irritation from ceramic ­bers. 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. Fireglass and the air deection

glass should only be installed after the pin brackets are in

place. The logs must then be placed in the unit after the
reglass and air deection glass. If the optional logs are
added after the air deection glass and reglass are in use,
move the reglass away from the areas in Figure 18 and

Pin placement

Log #1 (Rear)

FINAL INSTALLATION

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 (AVFL42DLS).

WARNING

Failure to position the parts in accordance
with diagrams below or to use only
parts specifically approved for this
heater may result in property damage or

personal injury.

install the support brackets, then arrange reglass evenly
across burner again.

1. Mount the four log support

pin brackets using mount­ing holes and screws pro­vided in locations indicated
in Figure 19. Note that the
front log can be mounted

in two different positions.

The pin brackets can be
moved to accommodate
the preferred log place-

ment.

2. Place the large rear log
(#1) by aligning the holes

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

back of the burner. Figure 20.

Figure 18 –
Log Pin Assembly

Figure 19 –
Alternative Log Placement

18

Monessen • AVFL42 Installation Instructions • 20305467 Rev. B • 02/17

Pin placement
Log #2 (Front)

Option 1

Pin placement
Log #2 (Front)

Option 2

Air Deection

Glass

OPERATING INSTRUCTIONS

AVFL Vent Free Fireplace

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

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

burner. The front log may be placed in one of two

Figure 20–
Front Log Placement

FOR YOUR SAFETY READ BEFORE LIGHTING

positions on the burner depending on which two pin

set locations are used.

Figure 21 –
Alternative Front Log Placement

If you do not follow these instructions
exactly, a re or explosion may result
causing property damage, personal

injury or loss of life.

WARNING

A. This appliance is equipped with an ignition device which automatically lights the pilot. Refer

to the instructions.

B. BEFORE OPERATING smell all around the appliance area for gas. Be sure to smell next to

the oor because some gas is heavier than air and will settle on the oor.

WHAT TO DO IF YOU SMELL GAS:

• Do not attempt to light any appliance.

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

• Immediately call your gas supplier from a neighbor's phone. Follow the gas supplier's
instructions.

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

C. Use only your nger to push in the master switch. Never use tools. If the switch will not function

by hand, do not try to repair it. Call a qualied service technician. Force or attempted repair
may result in a re or explosion.

D. Do not use this appliance if any part of it has been under water. Immediately call a qualied

service technician to inspect the appliance and to replace any part of the control system and

any gas control that has been under water.

Monessen • AVFL42 Installation Instructions • 20305467 Rev. B • 02/17

19

AVFL Vent Free Fireplace

OPERATING INSTRUCTIONS

TURNING ON UNIT

1. STOP! Read the safety information on Page 19.

2. This appliance is equipped with an ignition device which automatically lights the burner. Do not try
to light the burner by hand.

3. With ve (5) minutes to clear out any gas. Then smell for gas, including near the oor. If you smell
gas, STOP! Follow "B" in the safety information on Page 19. If you do not smell gas, go to next
step.

4. Press the master switch to the "ON" (-) position. Within eight (8) seconds it will beep once. This
indicates the system is ready.

5. Press "ON " button. Sparker will spark and pilot ame will light.

6. Once pilot ame is established, the main burner ame will light automatically.

7. If the pilot will not stay lit after several tries, turn the master switch to "OFF" and call your service
technician or gas supplier.

Master
Switch

ON

OFF

OFF

ON

Command Center

TO TURN OFF GAS TO APPLIANCE

1. Turn master switch to "OFF".

2. Turn off all electrical power to the appliance if service is to be performed.

Pilot

20

Monessen • AVFL42 Installation Instructions • 20305467 Rev. B • 02/17

SIGNATURE COMMAND SYSTEM OPERATION

AVFL Vent Free Fireplace

FEATURES

Command Center

• Easy Access Function Operation and System Con-

guration

• Operation Conrmation/Fault Diagnostic Indications

(LED/Buzzer)

• ON/OFF/HI/Med/Low Operation

• Optional Wall Mounting

Control Board

• Electronic Ignition

• Pilot Lockout safety feature

• Electric Power Regeneration from Thermopile to save

battery

• 6-hour Automatic Shut Down Option

• Standing Pilot/Intermittent pilot Conversion

• Previous settings Restoration Ability (Memory Off)

• Uninterrupted Operation During Power Outage (Auto-

matic Battery Backup)

• ON/OFF RF Remote Receiver

• Optional Transmitter Learn Capability

AC Module (Requires TSFSC Remote)

• Easy Snap-on Design

• Embedded Compact 120 VAC Adapter with Auto Bat-

tery Back up Feature

• Remote Controlled 3-step Blower, Lighting, and On/

Off Auxiliary AC Outputs

Transmitter – TSFSC

• Three Flame Height Settings

• Low battery Indication for Transmitter

• Child Proof Lock-out

• LCD Backlight

• Security Codes 16

• Countdown 6 hr Timer

• Standard Thermostatic Control Mode

• Smart Mode

Modulation)

®

Thermostat (Auto Flame & Blower

• Three Brightness Settings for Lights

• On/Off Auxiliary

BATTERY INSTALLATION

The Command Center uses four (4) "AA" batteries as
back up for power outages. The system can operate for
approximately six (6) months on battery power.

To Install Batteries (not included):

1. Press down the battery door tabs and pull out to remove
battery door.

RF Receiver
ON/OFF

NG/LP

Conversion

CONTROL BOARD

ON

LED

OFF

Battery Door

Figure 22 –
Signature Command® System Components

2. Install the batteries as indicated on Command Center.

3. Close battery door by snapping in place.

4. When the four (4) batteries are installed the system will
operate without power.

5. The batteries should be replaced when the LED indi­cates low battery or at least once a year.

Master Switch

To Thermopile

To Sensor

To Sparker

To Command Center

To Stepper Motor

To Valve

AC Module

COMMAND CENTER

FP1917

SYSTEM CONFIGURATION/SETUP

All System conguration/setup is done on the Command
Center.

NOTE: When using On/Off wall switch, the switch must be
in the ON position to perform all conguration set ups at
the command center.

COLD CLIMATE OPTION

Choose the Mode That Best Suits Your Needs

The Signature Command® System is designed to operate

in either Standing Pilot or Intermittent Pilot mode.

• The Standing Pilot Mode is best for colder climates

when the pilot must remain on continuously to prevent

condensation and ensure reliable operation.

• The Intermittent Pilot Mode is ideal for maximum ef-

ciency, igniting the pilot only when needed to start your
replace, lowering fuel consumption and reducing your
carbon footprint.

Either mode benets from the instantaneous battery back­up, so you never have to worry about a power outage.

Monessen • AVFL42 Installation Instructions • 20305467 Rev. B • 02/17

21

AVFL Vent Free Fireplace

SIGNATURE COMMAND SYSTEM OPERATION

NOTE: The Signature Command® System comes standard

in the Intermittent Pilot mode, so you must follow the in­structions below to switch to Standing Pilot Mode if needed.

Intermittent/Standing Pilot Setup (Default intermit-

tent)

1. Holding the ON button on the Command Center while

turning on the master switch will toggle between stand-

ing pilot and intermittent pilot.

2. After the above operation, one beep (for standing pi-

lot) or two beeps (for intermittent pilot) will be given as

conrmation.

Six-hour Safety Shutdown Option (Default ON)

1. The system comes preset from the factory with a six (6)
hour shutdown from its last command of operation.
This is done to prevent the replace from continuing to
operate if unattended. You may disable this feature if
you wish.

NOTE: By disabling this feature, your replace may con-

tinue to operate unattended.

2. When the master switch is in the ON position (“-”), press-

ing the ON button and the OFF button on the Command
Center simultaneously will toggle between enabling and

disabling the six-hour shutdown option.

3. After the above operation, one beep (for enabling the

six-hour shutdown option) or two beeps (for disabling

the six-hour shutdown option) will be given as conrma­tion.

Remote Transmitter Learn Function (Default OFF)

1. The RF receiver button located on the Control Board

must be in the on position before the learn function can

begin. Use paper clip to depress button. One beep for
RF receiver ON or two beeps for RF receiver OFF will be
given as conrmation. Refer to Figure 40 for location.

2. After the RF receiver is on, holding the OFF button on

the Command Center while turning on the master switch

will activate the learn function for the transmitter.

3. After the above operation, two beeps will be given and
the green LED on the Command Center will ash for
10 seconds.

4. During the 10 seconds, press the OFF button on a
transmitter to learn. Another two beeps will be given
to conrm a successful learning. Refer to transmitter
instructions for remote operations.

Shutting Off the Standing Pilot (Temporary Shut Off)

To shut off the standing pilot for service or summer shut

down, press and hold the ON button on the Command

Center for 3 seconds when the master switch is in the ON

position (“-”) and the main burner is off.

Note: Pilot will resume the next time system is turned

on.

Key Combinations for System Settings

NOTE: When On/Off wall switch is used, it must be in the
On position to perform all system setups.

FUNCTION OPERATION DEFAULT SETTING

Intermittent/Standing Pilot

Setup

Standing Pilot

Temperature Shutoff

RF Remote Receiver

ON/OFF

Learn Remote

Transmitter

6-Hour Safety

Shutdown Setup

22

Monessen • AVFL42 Installation Instructions • 20305467 Rev. B • 02/17

Hold the ON é button while turning the master switch

(It will beep once for standing pilot, twice for intermittent pilot.)

Hold the ON é button for 3 seconds (when the master switch on

the main burner is off.)

Push the RF receiver ON/OFF button on the control board.
(It will beep once for On and twice for OFF.)

Hold the OFF ê button while turning on the master switch

(Listen for two beeps, then press any button on the remote.)

Press the ON é button and OFF ê button simultaneously

(It will beep once for ON, twice for OFF.)

INTERMITTENT

PILOT

RF OFF

ON

SIGNATURE COMMAND SYSTEM OPERATION

AVFL Vent Free Fireplace

FUNCTIONS/OPERATION
(from the Command Center)

Turning on the replace

1. Turn on the master switch and wait for a beep.

2. Press the ON button on the Command Center or turn
on wall switch. Pilot will light and burner will come on

High setting or last memory setting (See Turning Off

Fireplace below). For memory feature.

Pilot Safety Lockout Function

1. If the pilot doesn’t light after sparking for 30 seconds, pilot
trial lockout happens. The LED on the Command Center
ashes Green once every 2 seconds, until reset.

2. If the pilot ame is lost during normal operation, the

system will try three (3) times to relight after three (3)

failures, ame loss lockout happens. The LED on the
Command Center ashes Red-Green once every 2
seconds, until reset.

3. Turning the master switch on the Command Center to
the off position, then ON again will reset the system.

Flame Height Control

1. Press the ON button (on the Command Center) once to
turn on the main burner with maximum ame height.

2. Press the OFF button to decrease ame height. The rst
two presses will decrease the ame height to medium
and low.

3. The third press on OFF will turn off the main burner. In
standing pilot conguration, the pilot will stay; in inter­mittent pilot conguration, the pilot will be shut off.

Turning the Off Fireplace

There are three ways to turn off the replace.

1. Flip the master switch to the off (“O”) position. (This will
turn the entire system OFF.)

2. Press the OFF button to Medium, Low, then Off.

3. Hold the OFF button anytime for three seconds or by
turning off the wall switch. These two commands of

OFF are (Memory Off) the system will remember all last

settings before turning off. The next time the replace is
turned on, all settings will resume. To reset, change to

the desired settings and shut off by using the Memory
Off commands and the system will be reset to those

new settings.

NOTE: After turning off there may be up to a two (2)

minute delay before the burner can be relit. There will
be three (3) red ashes if the on button is pressed before

the safety control is automatically reset.

Command Center Operations:

The following functions are available on the Command Center.

FUNCTION OPERATION

Power Up Flip the master switch to ON ("_") position to power up the system.

Fireplace ON

Fireplace OFF

Flame Height Up Press the ON button once to turn on the replace with maximum ame height.

Flame Height Down Press the OFF button to lower the ame height to Medium and Low.

Press the ON é button on the Command Center or turn on wall switch.

Flip the master switch to the OFF ("o") position OR press the OFF ê button 3
times OR for Memory Off, hold the OFF ê button 3 seconds, or turn off wall switch.

Self Diagnostics Chart:

The Command Center has a self-diagnostic LED enabling you to troubleshoot problems and potentially avoid a service

call. Please refer to the chart below for indicator reference.

FAULT LED INDICATOR

Conversion Cover Missing One RED (1 time)

Spark Fail Two RED (1 time)

No Sensor Signal Three RED (1 time)

Pilot Lockout – trial One GREEN, every 2 seconds until manual reset

Pilot Lockout – ame loss One RED-GREEN every 2 seconds until manual reset

Low Battery One RED every 10 seconds continuously

No or Low Thermopile Power Two RED every 10 seconds continuously

Learning GREEN ashes every 1 second for 10 seconds

AC Power On GREEN solid

Pressure Switch Failed (Power Vent only) One RED every 2 seconds until manual reset

Monessen • AVFL42 Installation Instructions • 20305467 Rev. B • 02/17

23

AVFL Vent Free Fireplace

TOUCH SCREEN REMOTE CONTROL OPERATION

Due to the sensitive temperature monitoring
components in the transmitter, it is necessary

to allow the transmitter to stabilize to room tem­perature before accurate room temperatures
are displayed. If the transmitter is activated

NOTE

from a severe cold condition, allow 15 minutes
for accurate temperature readings to appear on
the LCD display.

Turn appliance OFF (at the Master Switch) if

you are away from your house

for an extended

period of time. Never leave anything on top of

the surface of the transmitter.

WARNING

n Function Areas of the LCD Display

Figure 23 shows the display of the TSFSC LCD.

Information Bar

The information bar shows the room temperature, the
“sending signal” radio icon, the low battery indication icon,
the child-proof icon, and the ame icon. This area doesn’t
have touch buttons.

• The room temperature will always be shown after

power-up. It displays the room temperature from 40
°F to 99 °F. “Lo” and “HI” will be displayed when the
room temperature is lower than 40°F or higher than
99°F, respectively.

• The radio icon will be shown when the transmitter is

sending a signal.

• The low battery indication icon will be shown when

the battery voltage is low.

• The child-proof icon will be shown when the child-

proof mode is activated.

• The ame icon indicates the current ame height –

Off, Low, Medium and High

Touch Area

The touch area contains all touch buttons to control the

transmitter. It consists of two categories: menus and ad­justment arrows. The blue LED backlight lights up for 8
seconds when any of the touch buttons is pressed.

• The menus include TIMER, THERMO, LIGHT and

AUX.

• The adjustment arrows include ON/up and OFF/

down. Their default function is to adjust the ame
height. When a button from the menu is pressed,
the ON/up and OFF/down buttons will temporarily
become adjustment controls for the selected item.
When the adjustment is done, the ON/up and OFF/
down buttons go back to ame height controller
again.

Information

Bar

Menus

Touch Area

Adjustment

Controls

Logo

Bar

Figure 23

Function Areas of the LCD Display

Logo Bar

The Logo Bar contains the brand logo: Signature Com-

®

mand

System.

n Initialization and Setting up

Installing Batteries:

Figure 24

The remote transmitter has two

battery compartments, one on

Battery

Door
Tabs

each end of the transmitter. Al-

ways change all four (4) batter­ies at the same time.

To install batteries,

1. Press down the battery door

tab and pull out to remove the

battery door.

Figure 24

2. Install the batteries as indicat­ed inside the battery compartments.

3. Close the battery door by snapping in place.

4. When all four batteries are installed, the transmitter
will initialize for 5 seconds and then is ready for use.

5. The batteries should be replaced every 12 months or
when the low battery icon indicator is displayed.

Changing Temperature Unit

When batteries are installed in the transmitter,

1. All available icons on the LCD will be turned on then
be cleared.

2. The LCD will display temperature unit: °F. Use ON ∆
to toggle the units between °F and °C within the rst 5
seconds.

3. The transmitter enters Manual Mode

4. The LCD displays room temperature with the chosen
unit.

24

Monessen • AVFL42 Installation Instructions • 20305467 Rev. B • 02/17

TOUCH SCREEN REMOTE CONTROL OPERATION

AVFL Vent Free Fireplace

Setting Privacy Code on Transmitter:

Figure 25

The remote transmitter privacy code

is preset in factory. In the event of

activation or interference from other

nearby transmissions, change the

code using the following procedures
(learn function must be performed af­ter changing the code):

1. Press the ON/arrow button and
the TIMER button at the same

time to enter privacy code setup

models.

2. The setup display is shown in the

Figure 25

gure. The four digits on the top
stand for the privacy code. The default values of the
four digits will be all “0.”

3. The rst digit will be ashing upon entering the setup
mode. Push the ON button to toggle its value between
“0” and “9,” and push the “OFF” button to jump to the
next digit. The next digit will then start ashing and the
rst one stops ashing. Set up the four digits to your
choice between “0” and “9.”

4. After setting up all the four digits, push “OFF” to nish
the process and return to the previous mode.

®

5. The Signature Command

control board then needs to

re-learn the new setting.

Performing Learn Function

1. The RF receiver button on the control board in the re­place must be in the on position before the learn func-

tion can begin. Figure 24. With the Command Center
master switch in the ON position, use paper clip to de­press the recessed button on Control Board, one beep
for RF receiver ON or two beeps for RF receiver OFF.

2. Holding the OFF button on the Command Center while

turning on the master switch will activate the learn

function for the transmitter.

3. After the above oper­ation, two beeps will

sound and the green
LED on the Command

RF Receiver
ON/OFF

Center will ash for 10
seconds.

4. During the 10 sec­onds, press the OFF

button on the trans­mitter to learn. Anoth­er two beeps will be

sound conrming a

successful learn func-

tion. Figure 27

Figure 26

ON

LED

OFF

Battery Door

Figure 27 –
Command Center

Master Switch

FP2650

Front Panel Bezel

(Optional)

Do not use two (2) or more remote control sys­tems in the same area with the same privacy

code setting, as they will communicate with

each other. This may cause the appliances to
malfunction.

WARNING

Resetting the transmitter:

If the transmitter is not working properly, reinstall the bat­teries to reset the transmitter.

1. Pull out at least one of the batteries.

2. Press any key on the screen to discharge.

3. Wait for 10 seconds and reinstall the batteries.

Pushing and holding any key for more than 10 seconds
until the display refreshes will also reset the transmitter.

n Functions and Operations

General:

The TSFSC Remote Control has four (4) operating
modes: Manual, Timer, Thermostatic and Smart Mode.

The control system can be set to temperature range be-

tween 45° F and 90° F. The ame height can be adjusted
in the manual, timer and thermostatic mode. The Smart
Mode will automatically adjust ame height according to
the difference between Set and Room temperatures.

The transmitter will operate the remote receiver from 1
foot to a maximum of 30 feet. The distance is reduced
when batteries are low.

Manual Mode

Figure 28

In this mode, the TIMER button and the THERMO but­ton will only display “TIMER” and “THERMO,” respec­tively without showing the time and the SET temperature.
Pressing the ON/up and OFF/down buttons will change
the ame height if none of the menu buttons (TIMER,
THERMO, LIGHT, AUX) are pressed and ashing.

1. Press the ON/up button to turn on the replace. The
ame icon on the LCD displays High.

Monessen • AVFL42 Installation Instructions • 20305467 Rev. B • 02/17

25

AVFL Vent Free Fireplace

TOUCH SCREEN REMOTE CONTROL OPERATION

2. Press the OFF/down button
to decrease the ame height
and turn off the replace.
When the OFF/down button
is pressed for three times,
the ame icon changes form
High to Medium, to Low,
then to Off.

3. If the OFF button is held for

more than 3 seconds at any

ame height, the replace

will be turned off and the

ame icon disappears.

4. Sliding up and down on the

arrow buttons can also turn

on or turn off the replace.

5. If the replace is shut off us-

Figure 28

ing the above methods in 3

and 4, all the settings will be
remembered and will be resumed next time the re­place is turned on (Memory Off).

Timer Mode

Figure 29

Press the TIMER button to en­ter timer mode. The replace

will stay on for a period of time

as specied by the timer and

then be shut off by the transmit­ter when the timer counts down

to zero.

1. When the TIMER button is
pressed, the Set Time ap-

pears in the frame of the but-

ton and ashes.

2. Use ON/up and OFF/down

to increase or decrease

the Set Time in 15 min. in­crements, between 0:00 to

Figure 29

6:00. Sliding up and down

on the arrow buttons will in-

crease or decrease the Set Time in 1 hour increments.

3. Push the TIMER button again to conrm the Set Time,
the transmitter sends an ON signal to turn on the re­place.

4. The ashing stops and the ON/up and OFF/down but­tons become ame height controller again. The ame
height will then stay as set up by the ON/up and OFF/
down buttons.

5. The TIMER button can be used when the transmitter
is in Manual Mode or in Thermostat Mode. In both
modes, the replace will be shut down completely
when the timer counts down to zero.

6. To exit Timer Mode:

26

Monessen • AVFL42 Installation Instructions • 20305467 Rev. B • 02/17

a. Push and hold the TIMER button for 3 seconds or
b. Use the OFF/down buttons to decrease the Set

Time to zero or

c. Slide down on the arrow buttons to exit TIMER

mode and shut off the replace.

Thermostat Mode

Figure 30

Press the THERMO button to

set the transmitter in thermo-

stat mode. The transmitter will
automatically turn on the re-

place when the room tempera­ture is below the set tempera­ture and turn off the appliance
when the room temperature
is above the set temperature

within one degree.

1. When the THERMO button
is pressed, the Set tempera-

ture appears in the frame of

the button and ashes.

2. Use ON/up and OFF/down

to increase or decrease the

Figure 30

Set temperature in 1 degree
increments, between 45 degrees and 90 degrees.

Slide up and down on the arrow buttons will increase

or decrease the Set Temperature in 10 degrees incre­ments.

3. Press the THERMO button again to conrm the Set
Temperature. The transmitter will send out an On

signal or an Off signal depending on the relationship

between the Set temperature and the Room tempera­ture.

4. The ashing stops and the ON/up and OFF/down but­tons become ame height controller again. The ame
height will then stay as set up by the ON/up and OFF/
down buttons.

5. To exit Thermostat Mode:

a. Push and hold the THERMO buttons for 3 seconds

or

b. Slide down on the arrow buttons to exit Thermostat

mode and shut off the replace.

Smart Mode Option for Thermostat Mode

Figure 31

Press and hold the THERMO button and the ON/UP but­ton at the same time for 3 seconds to toggle between

Smart Mode and the regular Thermostat Mode. The icon
“Smart Mode” will appear under the Set Temperature.
The transmitter will automatically adjust the ame height

according to the difference between the Set temperature

and the Room temperature. There is no manual ame
height adjustment.

TOUCH SCREEN REMOTE CONTROL OPERATION

AVFL Vent Free Fireplace

NOTE: there will a 10

second delay for the

ame adjustment when
the replace is turned
on.

1. When Set Temp. is

Smart
Mode
Icon

3° F or higher than
Room Temp., ame
height will be on High.

2. When Set Temp. is 2°
F higher than Room
Temp., ame height
will be on Medium.

3. When Set Temp. is 1°
F higher than Room
Temp., ame height

Figure 31

will be on Low.

4. When Set Temp. is equal to Room Temp., ame height
does not change (stays on low).

5. When Set Temp. is lower than Room Temp., the re­place will be shut off.

6. When Set Temp. is 1° F higher than Room Temp.,
again the ame height will be on Low.

To exit Smart Mode and shut off the replace;

a. Push and hold the THERMO buttons for 3 seconds,

or
b. Press the OFF button
or
c. Slide down on the arrow buttons.

To shut off the Smart Mode option and return to regular

thermostat mode, press and hold the THERMO button
and the ON/UP button at the same time for 3 seconds
again.

Light Brightness Control

Figure 32

The light brightness control function is used to adjust the
brightness of the light bulbs connected to the AC module
on the Signature Command® System. There are four light

brightness levels dened: Off,
Low, Medium, High

1. Press the LIGHT button to en-

ter the light brightness control

mode. The LIGHT icon will
start ashing.

2. Press the On/up and OFF/
down buttons to increase/

decrease the light brightness

(Off-Low-Medium-High).

3. Press the light button again to
conrm the setting. The new

setting will be transmitted to

the receiver.

4. After the signal is sent, the On/up and Off/down but­tons become ame height controller again.

5. When the light button is ashing, slide up and down on

the arrow buttons will turn the light brightness to HIGH
or Off directly without pressing the light button again to

conrm.

AUX Control

The AUX control function is used to turn on or turn off
the auxiliary component connected to the AC
module of the Signature Command

®

System.

Press the AUX button to turn on or turn off the

auxiliary.

1. When the auxiliary is turned on, the icon will

become solid text and the “ON” icon will ap-

pear below the “AUX” icon.

2. When the auxiliary is turned off, the icon will

become hollow text and the “ON” icon will

disappear.

NOTE: Some replaces use the AUX function to control
options within the replace. Refer to replace manual for
operation.

Setting up Blank Screen or Constant Display in Idle

Figure 33

There is an option
to set up how the
LCD displays and
functions when the
transmitter is in

idle. There are two

choices:

1. A) Mode. When

the transmitter is

in idle, the icons

in the “touch

area” (timer,
thermostat,

Figure 33

blower, light and
AUX) will disappear, as shown in the gure on the left.
When any of the touch buttons is pressed, those icons
will appear and are ready to operate (default).

2. B) Mode. The transmitter always displays all available
icons showing current status of timer, thermostat,
blower, light and AUX as shown in the gure on the
right.

Press TIMER and THERMO buttons at the same time for

3 seconds to toggle between A) and B).

1. When the current setting is A), touch any place in the
touch area to bring up the icons then press TIMER but­ton and THERMO button at the same time for 3 sec­onds. The backlight will ash once to indicate that the
setting has changed to B).

Monessen • AVFL42 Installation Instructions • 20305467 Rev. B • 02/17

Figure 32

27

AVFL Vent Free Fireplace

TOUCH SCREEN REMOTE CONTROL OPERATION

2. When the current setting is B), pressing TIMER button
and THERMO button at the same time for 3 seconds
will switch to A) Mode. The touch area icons will disap­pear.

n Safety Features

1. Low Battery Detection

When low battery condition occurs, the trans-

mitter will turn off the replace.
A) Battery voltage is checked every one minute.

When the battery voltage is low, the LCD dis­plays a low battery icon which will exist in all modes.

B) The transmitter will not operate with low battery

voltage. Change the batteries before the batteries
become too weak for normal operations.

2. Power On Initialization

After the power-on initialization, the transmitter sends

a signal to turn off the replace.

3. Thermal Shutdown

When the ambient temperature is more than 99°F, the

transmitter will turn off the replace.
A) The LCD will display “HI.”
B) The Transmitter will not function until

the room temperature has dropped

below 99 degree Fahrenheit.

4. Low Temperature Condition

When the ambient temperature is less than 40 de-

grees Fahrenheit, the LCD will display
“LO,” and NO SIGNAL will be sent to
turn on the appliance.

All functions still remain the same for

both Manual Mode and Thermostat

Mode.

5. Child-proof Protection

The child-proof icon will be shown when

the child-proof mode is activated by
pressing the ON button and the OFF
button at the same time for three sec-

onds.

A) Enter childproof mode by pressing and holding both

the ON button and the OFF button simultaneous-

ly for 3 seconds. The Childproof indicator will be
shown on the LCD.

B) Deactivate childproof mode by pressing and hold-

ing the ON button and the OFF button simultane-

ously for 3 seconds again. The Childproof indicator
disappears on the LCD.

C) The transmitter cannot be operated in childproof

mode.

n Using the Mounting Base

The transmitter comes with a mounting base which allows

you to hang the transmitter on the wall.

1. Secure the mounting base

on the wall with supplied

screws. For best viewing
angle, make it the same
height as your eyes.

2. Hang the transmitter on

the hook of the mounting

base, then push down so
the transmitter is ush to
the mounting base.

Figure 34

28

Monessen • AVFL42 Installation Instructions • 20305467 Rev. B • 02/17

TOUCH SCREEN REMOTE CONTROL OPERATION

AVFL Vent Free Fireplace

TROUBLESHOOTING

Symptom Causes Action

1. Battery icon on LCD on transmitter 1. Low Battery 1. Replace batteries. Change batteries

every 6 months.

2. LCD display is blank 2. Check battery installation or replace
batteries.

3. LCD display shows “funny” display 3. Reset the transmitter (see “Resetting
the Transmitter” section).

4. Appliance does not come on 2. The transmitter did not match 1. Make sure the transmitter has
with the receiver learned to the receiver.

3. Transmitter measures temp- 1. Move transmitter to a cooler place

erature exceeding 99 degrees and wait until temperature drops

Fahrenheit and shows “HI” on below 99 degrees.

LCD

4. Distance between the transmitter 1. Make sure the opening distance is
and receiver is more than 30 feet less than 30 feet.

Monessen • AVFL42 Installation Instructions • 20305467 Rev. B • 02/17

29

AVFL Vent Free Fireplace

FLAME APPEARANCE

Flames from the pilot, front and rear burner should be
visually checked as soon as the heater is installed.

In addition, periodically check the ames visually during
operation.

CHECK THE PILOT FLAME

The pilot ame must always be present when the

heater is in operation. It should just touch the top of the

thermocouple tip for natural gas. Refer to Figure 27 for
correct pilot ame.

If the pilot ame does not touch the thermocouple, then
the main burner cannot function reliably. Refer to Figure
36 for incorrect shape of pilot ame.

CHECK BURNER FLAME APPEARANCE

In normal operation, at full rate after 15 minutes, the ames
should appear as shown in Figure 37.

If logs are installed, the ames should be yellow and should
not impinge on the logs.

MAINTENANCE AND CLEANING

Thermocouple
for Natural Gas

Thermocouple
for LP

Figure 35 –
Correct Pilot Flame Appearance

Thermocouple
for Natural Gas

Air intake hole

FP2272

Air intake hole

Thermocouple
for LP

Figure 36 –
Incorrect Pilot Flame Appearance

FP2273

Figure 37 –
Burner Flame Appearance

(Shown with reglass only)

30

Monessen • AVFL42 Installation Instructions • 20305467 Rev. B • 02/17

LG1181

MAINTENANCE AND CLEANING

AVFL Vent Free Fireplace

CLEANING AND SERVICING

Annual inspection and cleaning by your dealer or quali­ed service technician is recommended to prevent
malfunction and/or sooting.

Turn off heater and allow to cool before

cleaning. Disconnect electrical power

before cleaning or servicing.

WARNING

Remove logs, if installed, handling carefully by holding
gently at each end. Gloves are recommended to prevent
skin irritation from ceramic bers. If skin becomes irritated,
wash gently with soap and water. Also remove glass, stones
and/or glass chunks, as applicable. Refer to manual for
correct log placement.

PERIODIC CLEANING – Refer to parts diagram for
location of items discussed below.

• Do not use cleaning uid to clean logs or any part of

heater.

• Brush logs and/or stones with soft bristle brush or

vacuum with brush attachment.

• Clean iceberg glass with a soft wet cloth.

• Vacuum loose particles and dust from the burner,

controls.

• Inspect and clean burner air intake holes. Remove

lint or particles with vacuum, brush, or pipe cleaners.

Failure to keep air intake holes clean will result

in sooting and poor combustion.

• The replace face should be dusted and wiped with

a wet soapy cloth.

Top light

location

Figure 38–
Top Light Position; Porcelain Panel Screw Location

Porcelain

panel screw

REPLACING LIGHT BULBS

TOP LIGHT BULB INSTALLATION

1. Remove three screws holding light cover in place
(as shown in Figure 39)

2. Insert (1) 100W bulb provided into socket

3. Replace top light cover with three screws

Light cover

screws

ANNUAL CLEANING/INSPECTION – Refer to parts
diagram for location of items discussed below.

• Inspect and clean burner air intake holes. Remove
lint or particles with vacuum, brush or pipe cleaners.

Failure to keep air intake holes clean will result in

sooting and poor combustion.

• Inspect and clean all burner ports.

• Inspect ODS pilot for operation and accumulation of

lint at air intake holes.

• Verify ame pattern and log placement for proper
operation.

• Verify smooth and responsive ignition of main burner

and rear burner.

• Replace battery in remote control device.

Monessen • AVFL42 Installation Instructions • 20305467 Rev. B • 02/17

Figure 39–
Top Light Screws

LOWER LIGHT BAR BULB INSTALLATION

1. Remove air deection glass from the unit and place
on a at, clean surface.

2. Remove any optional media already installed in the
unit (e.g. stones, reglass, log set, etc.).

3. Using a Phillips screwdriver remove the screws (one

each) holding the left and right porcelain panels in

place. Figure 40

4. Remove the retainer clips at bottom of porcelain
panels. Figure 41 Carefully remove the panels
from the unit placing them on a clean level surface.

31

AVFL Vent Free Fireplace

MAINTENANCE AND CLEANING

panel screw

Figure 40–
Porcelain Panel Screw Location

NOTE: The rear porcelain panel is held in place by
the left and right panel and could fall forward if not

supported during removal of the side panels.

5. With side panels removed the rear porcelain panel
can be removed from the unit and placed on a clean,
level surface.

6. Remove nine screws that secure the front hearth in
place and remove from unit. Figure 42

7. Figure 43 shows bulb placement for front and rear
light bars. Insert bulbs in sockets.

8. With (twelve 20W) bulbs installed in front and rear
light bar, reinstall the rear hearth rst with ve
screws that were removed earlier. Figure 42

Retainer clipPorcelain

Figure 41–
Porcelain Panel Retainer Clip Location

9. Reinstall the front hearth with nine screws removed
earlier. Figure 42

10. Place the rear porcelain panel back in place and

reinstall the left and right side using same screws

that were removed earlier. Replace the retainer clips
at bottom of porcelain panels.

11. Re-install the air deection glass and decorative
media (see page 17).

Figure 42–
Hearth Screw Locations

32

Monessen • AVFL42 Installation Instructions • 20305467 Rev. B • 02/17

Five Rear Hearth Screws

Nine Front Hearth Screws

OPERATION AND OPTIONAL ACCESSORIES

Rear Lower Light Bulbs

Front Lower Light Bulbs

Figure 43–
Lower Light Bulb Location

AVFL Vent Free Fireplace

OPERATING INFORMATION

Avoid any drafts that alter burner ame patterns. Do

not allow fans to blow directly into the replace. Do not
place a blower inside the burn area of the rebox. Ceiling
fans may create drafts that alter ame patterns. Sooting
and improper burning will result.

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 off 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 two to three 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.

This appliance must not be used with glass doors.

OPTIONAL ACCESSORIES

There are a wide range of optional accessories available

for the AVFL Vent Free Fireplace. A variety of face and trim
kits can change the appearance of the replace while the
rope lighting kit can add ambience and light, whether the
unit is on or off.

Choose the stylish driftwood log set, rustic stone kit,

shimmering iceberg glass or go minimalist with just a

coating of crushed glass and transform the replace to
suit your space.

NOTE: Rope lighting kits can only be installed on the wide
contemporary faces listed below.

Faces and Trim Kits

Wide Contemporary Textured Black Face AVFL42WFBT

Wide Contemporary Stainless Steel Face AVFL42WCSS

Black Textured Inside Fit Trim Kit AVFL42TKI

Rope Lighting Kit AVFL42RLK

(requires wide contemporary face)

Aged Driftwood Log AVFL42DLS

Stone Kit SKAVFL42

Glass Kits

Glass Kit Bronze GKB

Glass Kit Diamond GKD
Glass Kit Onyx GKO
Glass Kit Sapphire GKS

Iceberg Kits

Iceberg Kit Blue IKB

Iceberg Kit Diamond IKD
Iceberg Kit Sesame IKS

SCS Wall Extension Kit SCSWEK

(15' wire, rough-in box, wall cover)

Monessen • AVFL42 Installation Instructions • 20305467 Rev. B • 02/17

33

AVFL Vent Free Fireplace

TROUBLESHOOTING

• Turn appliance OFF and allow to cool

eration.

before servicing.

• Only a qualied service person should

service and repair the heater.

WARNING

PROBLEM POSSIBLE CAUSE SOLUTION

Appliance produces unwanted odors. Appliance burning vapors from paint, hair

spray, glues, etc.

Gas leak. Locate and correct all leaks.

Initial burn off. Ventilate room and turn unit on high until

Appliance shuts off during use. Not enough fresh air is available for

ODS/pilot to operate.

Low line pressure. Contact local gas company.

ODS/pilot is partially clogged. Clean ODS/pilot.

Defective thermopile. Check wire connections. Check

NOTE: All troubleshooting items are listed in order of op-

Gas odor even when control knob is in

OFF position.

Gas leak Locate and correct all leaks.

Control valve defective. Replace control valve.

Ventilate room. Stop using odor causing
products while heater is running.

odor is gone. Odor should be gone after
six hours of continuous use.

Open window and/or door for ventilation.

output should be 500 millivolts across

thermopile leads with ON/OFF switches
off.

Burner orice is clogged. Burner orice is clogged.

Burner does not light after ODS/pilot is lit.

Burner orice diameter is too small. Burner orice diameter is too small.

Inlet gas pressure is too low. Inlet gas pressure is too low.

Burner backres during combustion. Manifold gas pressure is too low. Contact local gas company.

Burner orice is clogged. Clean burner or replace burner orice.

Slight smoke or odor combustion. Burner orice is clogged or damaged. Clean burner or replace burner orice.

Burner is damaged. Replace burner.

Gas regulator defective. Replace gas regulator.

Logs appear to smoke after initial

operation.

Heater produces a whistling noise when

burner is lit.

No gas to pilot. LP regulator shut down due to inlet

Vapor from paint or curing process of

logs.

Air in gas line. Operate burner until air is removed from

Dirty of partially clogged burner orices. Clean burner or replace burner orice.

pressure too high.

Problem will stop after a few hours

of operation. Run the heater with the
damper open if you have one, or open a
window for the rst few hours.

Log heater is intended to be smokeless.
Turn OFF heater and call qualied
service person.

line. Have gas line checked by local gas
company.

Verify LP tank regulator is installed and

set at 11" to 13" w.c.
Replace regulator on heater.

34

Monessen • AVFL42 Installation Instructions • 20305467 Rev. B • 02/17

TROUBLESHOOTING

SIGNATURE COMMAND SYSTEM

AVFL Vent Free Fireplace

OPERATION

Install batteries and/or
plug in the AC board

Flip the master switch
(rocker switch) to the
ON position

After the beep

Press the ON button on
the Command Center

FAULT

No beep in about
8 seconds

No beep
or
no sound from the
valve indicating pilot
solenoid open

No sparking on
the pilot

A

B

C

Make sure
Command
Center and
the control
board are
connected by
a 2 feet or 15
feet cable

Check NG/LP
conversion cap
and control
board
connections

Check pilot
connections

DIAGNOSIS

Using
battery?

Check valve
connections

Check
grounding

Battery polarity wrong?

Battery voltage low?

AC plug is plugged to
AC mains?

The 5-pin connector on
the AC board broken or
bent?

LED on the Command
Center does not show
solid green?

Check power
supply (go
through )

Go through

B

ACTION

Re-install batteries

Change batteries

Plug the AC plug to
AC mains

Repair or replace the
AC Board

Replace the AC Board

Replace the Control

A

Board or
Command Center

Sparking is happening
elsewhere (under the
pilot), re-install/replace
the pilot

Sparking doesn’t
continue

Pilot doesn’t light

Main burner doesn’t
light

D

The Control Board is having interference from the
surrounding metal (Ground)

E

Check gas supply

F

Go through

E

Go through

The sensor on the pilot
is not in the flame
(pilot flame too small)?

Re-install the Control
Board, move it around
or change the
Control Board

Sparking is not in the

C

path of gas flow, adjust
sparker position or
replace the pilot

Adjust sensor position
or replace the pilot

Monessen • AVFL42 Installation Instructions • 20305467 Rev. B • 02/17

35

AVFL Vent Free Fireplace

1a,b

REPLACEMENT PARTS

2

3

4

6

8

5

10

7

FIREBOX
ITEM DESCRIPTION QTY. PART NO.

1a. Bulb (20w) 12 20301100
1b. Bulb – Top Light (100w) 1 73D0020

2. Bulb Socket 13 73D4521

3. Screen Frame Assembly 1 20305693K

4. Panel, Access, Door 1 20305434K

5. Porcelain Panel Rear 1 20305461

6. Porcelain Panel Left 1 20305462

7. Porcelain Panel Right 1 20305464

8. Wire Harness 1 78D1077

9. Junction Box Assembly (not shown) 1 26D2128K

10. Deection Glass 1 20305432

36

Monessen • AVFL42 Installation Instructions • 20305467 Rev. B • 02/17

REPLACEMENT PARTS

AVFL Vent Free Fireplace

2

1

LOGS
ITEM DESCRIPTION QTY. PART NO.

1. Log #1 1 20305703K

2. Log #2 1 20305704K

STONES
DESCRIPTION QTY. PART NO.

MUST ORDER ENTIRE KIT 1 SKAVFL42

Large Sand Stone #1 1 (no longer agailable) 20303038K
Large White Stone #2 1 (no longer agailable) 20303039K
Large Dark Gray Stone #3 1 (no longer agailable) 20303040K
Large Brown Stone #4 1 (no longer agailable) 74D0720K
Medium Sand Stone #5 1 (no longer agailable) 20303042K

Medium White Stone #6 2 (no longer agailable) 20303043K
Medium Dark Gray Stone #7 2 (no longer agailable) 20303044K

Medium Tan Stone #8 2 (no longer agailable) 74D0718K
Small Tan Stone #9 1 (no longer agailable) 78D0141K
Small Dark Gray Stone #10 2 (no longer agailable) 74D0717K

Monessen • AVFL42 Installation Instructions • 20305467 Rev. B • 02/17

37

AVFL Vent Free Fireplace

REPLACEMENT PARTS

2a,b,c,d

1

6

4

9

8

10

11

12

7

3

SIGNATURE COMMAND SYSTEM

ITEM DESCRIPTION QTY. AVFL42NTSC AVFL42PTSC

1. Burner Assembly 1 20305656K 20305468K
2a. Tube, Tee to Valve 2 20305454K 20305454K
2b. Tube, Tee to Injector 1 78D0090K 78D0090K
2c. Regulator Tube 1 20304913K —
2d. Pilot Tube 1 20306010K 20306011K

3. Gas Valve Assembly 1 20303257K 20303258K

4. Pilot Assembly 1 14D0473 14D0477

5. Pilot Regulator (not shown) 1 14D0469 —

6. Control Box 1 80D0018 80D0019

7. Command Center 1 80D0005 80D0005

8. Injector 2 20305649 62D3005

9. Venturi 2 45D0600 20305775K

10. Flexhose w/Shutoff Valve 1 69D0030 69D0030

11. Remote Transmitter (full function) 1 TSFSC TSFSC

12. AC Module 1 80D0004 80D0004

13. Wire Valve/Control (not shown) 1 80D0010 80D0010

14. Wire AC Module (not shown) 1 80D0009 80D0009

15. Wire, CC/CB 24" w/Power Leads (not shown) 1 20301889 20301889

16. Wire, Thermocouple Module SCS (not shown) 1 20301890 20301890

17. Support, Glass – Painted 1 20306020K 20306020K

38

Monessen • AVFL42 Installation Instructions • 20305467 Rev. B • 02/17

AVFL Vent Free Fireplace

LIMITED LIFETIME WARRANTY POLICY

LIFETIME WARRANTY

The following components are warranted for life to the original owner, subject to proof of purchase:
Firebox/Combustion Chamber/Heat Exchanger.

FIVE YEAR WARRANTY

The following components are warranted for 5 years to the original owner, subject of proof of pur­chase: Ceramic Fiber Logs, Catalytic Filter and Aluminized Burners.

BASIC WARRANTY

Monessen warrants the components and materials in your gas appliance to be free from manufac-

turing and material defects for a period of one year from date of installation. After installation, if any

of the components manufactured by Monessen in the appliance are found to be defective in mate-

rials or workmanship, Monessen will, at its option, replace or repair the defective components at no
charge to the original owner. Monessen will also pay for reasonable labor costs incurred in replacing
or repairing such components for a period of one year from the date of installation. Any products
presented for warranty repair must be accompanied by a dated proof of purchase.

This Limited Warranty will be void if the appliance is not installed by a qualied installer in accordance
with the installation instructions. The Limited Lifetime Warranty will also be void if the appliance is
not operated and maintained according to the operating instructions supplied with the appliance, and
does not extend to (1) rebox/burner assembly damage by accident, neglect, misuse, abuse, alter­ation, negligence of others, including the installation thereof by unqualied installers, (2) the costs
of removal, re-installation or transportation of defective parts on the appliance, or (3) incidental or
consequential damage. All service work must be performed by an authorized service representative.

This warranty is expressly in lieu of other warranties, express or implied, including the warranty of
merchantability of tness for purpose and of all other obligations or liabilities. Monessen does not
assume for it any other obligations or liability in connection with the sale or use of the appliance. In
states that do not allow limitations on how long an implied warranty lasts, or do not allow exclusion of
indirect damages, those limitations of exclusions may not apply to you. You may also have additional
rights not covered in this Limited Warranty.

Monessen reserves the right to investigate any and all claims against the Limited Warranty and de-

cide upon method of settlement.

IF WARRANTY SERVICE IS NEEDED

1. Contact your supplier. Make sure you have your warranty, your sales receipt and the model/
serial number of your Monessen product.

2. DO NOT ATTEMPT TO DO ANY SERVICE WORK YOURSELF.

Monessen • AVFL42 Installation Instructions • 20305467 Rev. B • 02/17

39

Monessen, a brand of Hearth & Home Technologies

7571 215th Street West, Lakeville, MN 50044

www.monessenhearth.com