Monessen LCUF32CR-B, LCUF36CR-B, LCUF42CR-B Installation Manual
Installation & Owner’s Manual
Installation, Care and Operation
INSTALLER: Leave this manual with party responsible for use and operation.
OWNER: Retain this manual for future reference.
NOTICE: DO NOT discard this manual!
WARNING: If the information in these
instructions is not followed exactly, a re
or explosion may result causing property
damage, personal injury, or death.
Model(s):
LCUF32CR-B
LCUF36CR-B
LCUF42CR-B
• DO NOT store or use gasoline or other am-
mable vapors and liquids in the vicinity of this
or any other appliance.
DO NOT overre. Overring will void your
•
warranty.
• Comply with all minimum clearances to combustibles as specied. Failure to comply may
cause house re.
WARNING
HOT SURFACES!
Glass and other surfaces are hot during
operation AND cool down.
Hot glass will cause burns.
• DO NOT touch glass until it is cooled
• NEVER allow children to touch glass
• Keep children away
• CAREFULLY SUPERVISE children in same room as
replace.
• Alert children and adults to hazards of high temperatures.
High temperatures may ignite clothing or other ammable
materials.
• Keep clothing, furniture, draperies and other ammable
materials away.
VENT FREE FIREBOX
Carefully review the instructions supplied
with the decorative type unvented room
heater for the minimum fireplace size
requirement.
DO NOT INSTALL AN APPLIANCE IN THIS
FIREBOX UNLESS THIS FIREBOX MEETS
THE MINIMUM DIMENSIONS REQUIRED
FOR THE INSTALLATION.
Monessen • LCUF32/36/42 Installation and Operating Manual • 4607-900 • Rev D • 3/21
Installation and service of this appliance should be performed by
qualied personnel, Hearth & Home Technologies recommends
HHT Factory Trained or NFI certied professionals.
For use with a listed gas-red unvented room
heater not to exceed 40,000 BTU/hr. Do not
build a wood re.
1
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: Indicates practices which may cause damage to the replace or to property.
Table of Contents
Installation Standard Work Checklist 3
1 Welcome
A. Congratulations 4
B. LIMITED LIFETIME WARRANTY 5
►
2 Important Safety and Operating Information 7
3 General Installation Information
Before You Start 9
Check Parts 9
Tools Needed for Installation 9
4 Firebox and Framing Dimensions
Dimensions 10
5 Hearth Dimensions and Firebox Locations
Hearth Dimensions 11
Firebox Locations 11
6 Clearances 12
7 Fireplace, Canopy and Gas Line Installation
Securing & Leveling Appliance 14
Canopy Installation 14
Gas Connections 15
8 Combustion Air 16
Install Model AK22 Combustion Air Assembly 16
9 Optional Equipment
Forced Air Kit 18
Panels 18
Accent Light Kit 18
Optional Door Kit 18
10 Service Parts
Service Parts Lists 19
►
2
Monessen • LCUF32/36/42 Installation and Operating Manual • 4607-900 • Rev D • 3/21
ATTENTION INSTALLER:
Follow this Standard Work Checklist
This standard work checklist is to be used by the installer in conjuction with, not instead of, the instructions contained in this installation
manual.
Customer:
Lot/Address
Model (circle one): LCUF32CR-B LCUF36CR-B
LCUF42CR-B
Date Installed:
Location of Fireplace:
Installer:
Dealer/Distributor Phone No:
Serial No:
WARNING! Risk of Fire or Explosion! Failure to install fireplace acording to these instructions can lead to a fire or
explosion.
Fireplace Install
Wiring has been installed if necessary.
Verified clearances to combustibles. (Pg. 11)
Fireplace is leveled and secured. (Pg. 13)
Hearth extension size/height decided. (Pg. 12)
Outside air kit installed. (Pg 15) Optional
Finishing
Combustible materials not installed in non-combustible areas.
Verified all clearances meet installation manual requirements.
Mantels and wall projections comply with installation manual requirements.
Hearth extension installed per manual requirements.
Fireplace Setup
All packaging and protective materials removed.
Refractory installed correctly.
Firescreen installed properly.
Manual bag and all of its contents are removed from the fireplace and given to the
party responsible for use and operation.
Blower kit installed properly. (Optional)
Light kit installed properly. (Optional)
Door kit installed properly. (Optional)
YES IF NO, WHY?
Hearth & Home Technologies recommends the following:
• Photographing the installation and copying this checklist for your file.
• That this checklist remain visible at all times on the fireplace until the installation is complete.
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)
4607-902 • Rev A • 4/18
Monessen • LCUF32/36/42 Installation and Operating Manual • 4607-900 • Rev D • 3/21
3
Welcome
1
Read this manual before installing or operating this replace.
Please retain this manual for future references.
A. Congratulations
Congratulations on selecting a Monessen Hearth rebox. It
is designed to provide the utmost in safety, reliability, and
efciency.
As the owner of a new replace, you'll want to read and
carefully follow all of the instructions contained in this manual. Pay special attention to all Cautions and Warnings.
Local Dealer Information
This manual should be retained for future reference. We
suggest that you keep it with your other important documents and product manuals.
Your new Monessen vent free rebox will give you years of
durable use and trouble-free enjoyment. Welcome to the
Monessen family of replace products!
Monessen is a registered trademark of Hearth & Home
Technologies.
DEALER: Fill in
your name, address,
phone and email
information here and
replace information
below.
Fireplace Information:
Brand: ________________________________________________ Model Name: ___________________________
Serial Number: __________________________________________ Date Installed: __________________________
Dealer Name: ________________________________________________________
Address: ____________________________________________________________
____________________________________________________________
Phone: _____________________________________________________________
Email: _____________________________________________________________
4
Monessen • LCUF32/36/42 Installation and Operating Manual • 4607-900 • Rev D • 3/21
B. LIMITED LIFETIME WARRANTY
recoverable under this Warranty is limited to the purchase price of the Product. This Warranty is transferable from the original purchaser
Component
►
Hearth & Home Technologies LLC
LIMITED LIFETIME WARRANTY
Hearth & Home Technologies LLC (“HHT”) extends the following warranty for HHT gas, wood, pellet and electric hearth appliances
(each a “Product” and collecvely, the “Product(s)”) and certain component parts set forth in the table below (“Component Part(s)”)
that are purchased from a HHT authorized dealer or distributor.
WARRANTY COVERAGE:
HHT warrants that the Products and their Component Parts will be free from defects in materials and workmanship for the applicable
period of Warranty coverage set forth in the table below (“Warranty Period”). If a Product or Component Parts are found to be
defecve in materials or workmanship during the applicable Warranty Period, HHT will, at its opon, repair the applicable Component
Part(s), replace the applicable Component Part(s), or refund the purchase price of the applicable Product(s). The maximum amount
to subsequent owners, but the Warranty Period will not be extended in duraon or expanded in coverage for any such transfer. This
Warranty is subject to condions, exclusions, and limitaons as described below.
WARRANTY PERIOD:
Warranty coverage begins at the date of installaon. In the case of new home construcons, Warranty coverage begins on the date of
rst occupancy of the dwelling or six months aer the sale of the Product(s) by an independent, authorized HHT dealer or distributor,
whichever occurs earlier. However, the Warranty coverage shall commence no later than 24 months following the date of Product
shipment from HHT, regardless of the installaon or occupancy date.
The term “Lifeme” in the table below is dened as: 20 years from the beginning date of warranty coverage for gas appliances, and 10
years from the beginning date of warranty coverage for wood and pellet appliances. These me periods reect the minimum expected
useful lives of the designated Component Parts under normal operang condions.
Warranty Period HHT Manufactured Appliances and Venting
Parts
5 years 1 year
6 years 3 years X Catalysts
7 years 3 years X X Manifold tubes, HHT Chimney and Terminations
Labor Gas Pellet Wood Electric Venting Component Parts Covered by this Warranty
All parts including handles, external enameled
components and other material except as covered by
2 Years
2 years
3 years X
X
X X Molded Refractory Panels, Glass Liners
X Vent Free Burners, Vent Free Logs
X1 Year X X X
X
X X
X X Castings, Medallions and Baffles
Warranty Conditions, Warranty Exclusions, and
All parts except as covered by Warranty Conditions,
Warranty Exclusions, and Warranty Limitations listed
Igniters, Auger Motors, Electronic Components, and
Electrical components limited to modules, remotes/wall
switches, valves, pilots, blowers, junction boxes, wire
harnesses, transformers and lights (excluding light bulbs)
Warranty Limitations listed
Glass
Firepots, burnpots, mechanical feeders/auger
assemblies
10 years 1 year X Burners, logs and refractory
Limited
Lifetime
1 Year
4021-645L 10/20
3 years X X X
None
X X X X X All purchased replacement parts
Firebox and heat exchanger, FlexBurn® System
(engine, inner cover, access cover and fireback)
Monessen • LCUF32/36/42 Installation and Operating Manual • 4607-900 • Rev D • 3/21
Page 1 of 2
5
B. Limited Lifetime Warranty (continued)
4021-645L 10/20
WARRANTY CONDITIONS:
• Because HHT cannot control the quality of any Products sold by unauthorized sellers, this Warranty only covers Products that are
purchased through an HHT authorized dealer or distributor unless otherwise prohibited by law; a list of HHT authorized dealers
is available on the HHT branded websites.
• This Warranty is only valid while the applicable Product remains at the site of original installaon.
• This Warranty is only valid in the country in which the HHT authorized dealer or distributor that sold the applicable Product is
authorized to sell applicable Product.
• Contact your installing distributor or dealer for Warranty service. If the installing dealer or distributor is unable to provide
necessary parts, contact the nearest HHT authorized dealer or supplier. Addional service fees may apply if you are seeking
Warranty service from a dealer other than the dealer from whom you originally purchased the applicable Product.
• No HHT consumer should bear cost of warranty service or costs incurred while servicing warranty claims (i.e., travel, gas, or
mileage) when the service is performed within the terms of this Warranty. Check with your dealer or distributor in advance for
any costs to you when arranging a warranty call. Travel and shipping charges for parts are not covered by this Warranty.
WARRANTY EXCLUSIONS:
This Warranty does not cover the following:
• Changes in surface nishes as a result of normal use. As a heang appliance, some changes in color of interior and exterior surface
nishes may occur. This is not a aw and is not covered under the Warranty.
• Damage to printed, plated, or enameled surfaces caused by ngerprints, accidents, misuse, scratches, melted items or other
external sources and residues le on the plated surfaces from the use of abrasive cleaners or polishes.
• Repair or replacement of parts that are subject to normal wear and tear during the Warranty Period are not covered. These parts
include: paint, wood and pellet gaskets, rebricks, grates, ame guides, baeries and the discoloraon of glass.
• Minor expansion, contracon, or movement of certain parts causing noise. These condions are normal and complaints related to
this noise are not covered by this Warranty.
• Damages resulng from: (1) failure to install, operate, or maintain the applicable Product in accordance with the installaon
instrucons, operang instrucons, and lisng agent idencaon label furnished with the applicable Product; (2) failure to
install the applicable Product in accordance with local building codes; (3) shipping or improper handling; (4) improper operaon,
abuse, misuse, connued operaon with damaged, corroded or failed components, accident, or improperly/incorrectly performed
repairs; (5) environmental condions, inadequate venlaon, negave pressure, or draing caused by ghtly sealed construcons,
insucient make-up air supply, or handling devices such as exhaust fans or forced air furnaces or other such causes; (6) use of fuels
other than those specied in the operaon instrucons; (7) installaon or use of components not supplied with the applicable
Product or any other components not expressly authorized and approved by HHT; (8) modicaon of the appliance not expressly
authorized and approved by HHT in wring; and/or (9) interrupons or uctuaons of electrical power supply to the applicable
Product.
• Non-HHT venng components, hearth connecons or other accessories used in conjuncon with the applicable Product.
• Any part of a pre-exisng replace system in which an insert or a decorave gas applicable Product is installed.
• HHT’s obligaon under this Warranty does not extend to the Product’s capability to heat the desired space. Informaon is provided
to assist the consumer and the dealer in selecng the proper Product for the applicaon. Consideraon must be given to the
Product locaon and conguraon, environmental condions, insulaon and air ghtness of the structure.
This warranty is void if:
• The applicable Product has been over-red, operated in atmospheres contaminated by chlorine, uorine, or other damaging
chemicals. Over-ring can be idened by, but not limited to, warped plates or tubes, deformaon/warping of interior cast iron
structure or components, rust colored cast iron, bubbling, cracking and discoloraon of steel or enamel nishes.
• The applicable Product is subjected to prolonged periods of dampness or condensaon.
• There is any damage to the applicable Product due to water or weather damage which is the result of, but not limited to, improper
chimney or venng installaon.
LIMITATIONS OF REMEDIES AND LIABILITY:
• EXCEPT TO THE EXTENT PROVIDED BY LAW, HHT MAKES NO EXPRESS WARRANTIES OTHER THAN THE WARRANTY SPECIFIED
HEREIN. The owner’s exclusive remedy and HHT’s sole obligaon under this Warranty or in contract, tort or otherwise, shall be
limited to replacement of the Component Part(s), repair of the Component Part(s), or refund of the original purchase price of the
applicable Product(s), as specied above; provided, however, that (i) if HHT is unable to provide replacement of the Component
Part(s) and repair of the Component Part(s) is not commercially praccable or cannot be mely made, or (ii) the customer is
willing to accept a refund of the purchase price of the applicable Product(s), HHT may discharge all such obligaons by refunding
the purchase price of the applicable Product. In no event will HHT be liable for any incidental or consequenal damages caused
by defects in the applicable Product. Some States do not allow the exclusion or limitaon of incidental or consequenal damages,
so the above limitaon or exclusion may not apply to you. This Warranty gives you specic legal rights and you may also have
other rights which vary from State to State. THE DURATION OF ANY IMPLIED WARRANTY IS LIMITED TO DURATION OF THE
EXPRESSED WARRANTY SPECIFIED ABOVE FOR THE APPLICABLE PRODUCT. Some States do not allow limitaons on how long an
implied warranty lasts, so the above limitaon may not apply to you.
Page 2 of 2
6
Monessen • LCUF32/36/42 Installation and Operating Manual • 4607-900 • Rev D • 3/21
Important Safety and Operating Information
2
INSTALLER
Please leave these instructions with the appliance.
WARNING!
• 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 rebox. 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 rebox should be
located out of trafc 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 rebox.
4. Do not place clothing or other ammable material
near the replace when the rebox is in use.
5. Any safety screen or guard removed for servicing,
must be replaced prior to operating a heater within
the rebox.
6. Installation and repair should be done by a qualied
service person.
7. To prevent malfunction and/or sooting, an unvented
gas heater/rebox should be cleaned at least annually by a professional service person. More frequent
cleaning may be required due to excessive lint from
carpeting, etc. It is imperative that control compartments, burners and circulating air passageways be
kept clean.
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. This unit complies with ANSI Z21.91-2017 ventless
rebox enclosures for gas-red unvented decorative
room heaters.
11. Do not install the unvented heater in a bathroom.
12. Do not install the unvented heater in a bedroom unless
the maximum input rating is equal to or less than
10,000 Btu/hr.
OWNER
Please retain these instructions for future reference
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. See 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 re-burnt 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. An unvented gas-red heater uses air (oxygen) from
the room in which it is installed. Provisions for adequate
combustion and ventilation air must be provided. See
installation guidelines.
17. Keep room area clear and free from combustible materials, gasoline and other ammable vapors and liquids.
18. Unvented gas heaters are a supplemental zone heater.
They are not intended to be a primary heating appliance.
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
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.
.
Continued on page 7
Monessen • LCUF32/36/42 Installation and Operating Manual • 4607-900 • Rev D • 3/21
7
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