HearthStone Hase-Modena 8140 User manual

hase - Modena Model 8140
Manual # 6400-40458
R: 3 - 7/27/2011
(Model 8140)
Gas Fired Direct-Vent Heater
OWNER'S MANUAL
INSTALLATION AND
OPERATING INSTRUCTIONS
PLEASE READ THIS ENTIRE OWNER’S MANUAL
BEFORE YOU INSTALL AND USE YOUR NEW
MODENA GAS HEATER. SAVE THIS DOCUMENT
FOR FUTURE REFERENCE.
WARNING: FOLLOW THE INFORMATION IN THESE
INSTRUCTIONS EXACTLY, IF NOT, A FIRE OR
EXPLOSION MAY RESULT CAUSING PROPERTY
DAMAGE, PERSONAL INJURY OR LOSS OF LIFE.
WARNING: DO NOT STORE OR USE GASOLINE
OR ANY OTHER FLAMMABLE VAPORS AND
LIQUIDS NEAR THIS OR ANY OTHER GAS
APPLIANCE.
WHAT TO DO IF YOU SMELL GAS:
Do not try to light any appliance.
Do not touch electrical switches; do not use the phone
in your building.
Immediately call your gas supplier from a phone
outside the structure. Follow your gas supplier’s
instructions.
If you cannot reach your gas supplier, call the fire
department or 911.
A qualified installer, service agency, or gas supplier must
perform installation and service of this appliance. In the
Commonwealth of Massachusetts, all installation of gas
lines and gas fittings must be performed by a licensed gas
fitter or licensed plumber.
AVERTISSEMENT: ASSUREZ-VOUS DE BIEN
SUIVRE LES INSTRUCTIONS DONNÉ DANS CETTE
NOTICE POUR RÉDUIRE AU MINIMUM LE RISQUE
D’INCENDIE OU POUR ÉVITER TOUT DOMMAGE
MATÉERIEL, TOUTE BLESSURE OU LA MORT.
AVERTISSEMENT: NE PAS ENTRESPOSER NI
UTILISER D’ESSENCE NI D’AUTRE VAPERURS OU
LIQUIDES INFLAMMABLES DANS LE VOISINAGE
DE CET APPRAREIL OU DE TOUT AUTRE
APPAREIL.
QUE FAIRE SI VOUS SENTEZ UNE ODEUR DE GAZ:
Ne pas tenter d’allumer d’appareil.
Ne touchez à aucun interrupteur. Ne pas vous servir
des téléphones se trouvant dans le batiment où vous
vous trouvez.
Appelez immédiatement votre fournisseur de gaz
depuis un voisin. Suivez les instructions du
fournisseur.
Si vous ne pouvez rejoindre le fournisseur de gaz,
appelez le service dos incendies.
L’installation et service doit être exécuté par un qualifié
installer, agence de service ou le fournisseur de gaz.

Hearthstone Quality Home Heating Products, Inc. Modena Model #8140
Information Sheet
Use this page to record all relevant information concerning the purchase, installation, and maintenance of your
Modena Model 8140 Direct -Vent heater. This information will facilitate servicing, purchase of replacement
parts, and warranty claims (if necessary). Keep your original receipt in a safe place as proof of purchase.
Serial Number:
Fuel type: Natural Gas Liquid Propane
Sold by: Date of Purchase:
Address:
Phone:
E-mail Website:
Installed by: Date of Installation:
Address:
Phone:
E-mail Website:
Gas Supplier:
Address:
Phone:
E-mail Website:
Read this Owner’s Manual before installing, or operating your Modena. Retain this manual for future
reference.
SERVICE RECORD
Date Who Performed Work Work Performed Notes:
WHAT WHEN
Firebox Cleaning............. annually
Glass Cleaning................ as needed
Door Gasket.................... Replacement as needed
2

Hearthstone Quality Home Heating Products, Inc. Modena Model #8140
Table of Contents
INTRODUCTION..............................................4
Read this Owner’s Manual............................................4
Never Burn Paper, Wood or Other Materials ................4
Hot Surfaces..................................................................4
Fire Hazard....................................................................4
SPECIFICATIONS............................................5
OWNER’S INFORMATION ..............................6
Daily Operation..............................................................6
Service Caution.............................................................6
INSTALLER’S INFORMATION........................7
Codes............................................................................7
ITEMS REQUIRED FOR INSTALLATION.......7
Packing List...................................................................7
SPECIFIED VENTING MANUFACTURER
CONTACT INFORMATION..............................7
UNPACKING AND INSPECTION....................7
INSTALLATION PREPARATION ....................8
Hearth Requirement / Floor Protection .........................8
Clearance To Combustibles..........................................8
Opening the front door ..................................................8
Acceptable Direct-Vent Termination Cap locations.....10
VENTING INFORMATION .............................11
Vent Connection..........................................................11
Restriction Plate..........................................................11
VENTING COMPONENTS &
CONFIGURATION .........................................13
Approved Venting System Components .....................13
Chimney Liner System................................................13
Minimum Vent Kit........................................................13
Standard Horizontal Termination Minimum Venting Kit
Installation Instructions................................................13
ELECTRICAL CONNECTIONS .....................15
Remote Control Thermostat........................................15
Remote Thermostat Placement ..................................15
Wiring Instructions.......................................................15
GAS SUPPLY & CONNECTIONS .................16
Gas Connections.........................................................16
Gas Supply..................................................................16
Gas Pressure Adjustment ...........................................16
FIRE STONE PLACEMENT...........................17
Installation of the Fire Stone Set.................................17
Removal of Fire Stone Set..........................................17
LIGHTING THE UNIT FOR THE FIRST TIME
........................................................................18
Smoke and Fumes Warning........................................18
Odors and Impurities...................................................18
Pilot Light....................................................................18
Do Not Light Pilot or Burner By Hand.........................18
Prepare For Lighting...................................................18
INITIAL ADJUSTMENTS ...............................18
Variable Output Control ..............................................18
Lighting Instructions....................................................19
To Turn Off Gas To Appliance....................................19
Air Shutter...................................................................19
Air Shutter Adjustments..............................................20
Pilot Adjustment..........................................................20
Burner Flame Appearance..........................................20
ROUTINE MAINTENANCE AND CARE........22
Cleaning......................................................................22
Firebox, Pilot, & Burner Assembly..............................22
Door Removal Procedure ...........................................22
Glass replacement procedures...................................23
Glass Cleaning............................................................23
Venting........................................................................23
PARTS LIST...................................................24
BOLTING YOUR MODENA TO A
PERMANENT STRUCTURE..........................25
HIGH ALTITUDE INSTALLATIONS ..............25
TROUBLESHOOTING ...................................26
RATING LABEL.............................................29
QUICK REFERENCE – FIREBOX ACCESS.31
Door & Glass Frame Removal Procedure: .................31
3

Hearthstone Quality Home Heating Products, Inc. Modena Model #8140
INTRODUCTION
Congratulations on your purchase of Hearthstone’s
Modena Gas-Fired Direct Vent heater. The Modena
incorporates the latest in balanced vent gas
technology, which will provide you with clean,
efficient heat for years to come. Combustion air
comes directly from the outside of your home to the
sealed firebox system, eliminating the potential for
annoying back drafts or other problems associated
with home depressurization.
The Modena will provide you with years of practical
and convenient service. However, as with any gas
appliance, the unit must be properly and safely
installed and maintained by qualified service
personnel to ensure safe and trouble-free operation.
READ THIS OWNER’S MANUAL
Operate and maintain this gas heater according to
the instructions in this manual. For your safety, and
years of trouble free operation, read this manual in its
entirety. By following a few simple safety precautions
and by performing minimal maintenance, the unit will
remain appealing while providing years of quality
performance.
WARNING: ENSURE ONLY AN NFI CERTIFIED
SERVICE TECHNICIAN INSTALLS, AND REPAIRS
THIS APPLIANCE. A QUALIFIED SERVICE
TECHNICIAN MUST INSPECT THE APPLIANCE
BEFORE USE, AND AT LEAST ANNUALLY. MORE
FREQUENT CLEANING MAY BE REQUIRED DUE
TO EXCESSIVE LINT FROM CARPETING, BEDDING
MATERIAL, PETS, ETC. IT IS IMPERATIVE THAT
THE CONTROL COMPARTMENTS, BURNERS, AND
CIRCULATING AIR PASSAGES OF THE
APPLIANCE ARE KEPT CLEAN AND FREE OF
OBSTRUCTIONS. (S’ASSURER QUE LE BRÛLEUR
ET LE COMPARTIMENT DES COMMANDES SONT
PROPRES. VOIR LES INSTRUCTIONS
D’INSTALLATION ET D’UTILISATION QUI
ACCOMPAGNENT L’APPAREIL.)
WARNING: DO NOT OPERATE THIS APPLIANCE
WITH THE GLASS, OR ANY PANEL REMOVED,
CRACKED, OR BROKEN. DO NOT SUBJECT THE
DOOR TO ABUSE, SUCH AS STRIKING OR
SLAMMING SHUT. REPLACEMENT OF THE GLASS
PANEL SHOULD BE DONE BY A LICENSED OR
QUALIFIED SERVICE PERSON.
NEVER BURN PAPER,WOOD OR OTHER
MATERIALS
This gas heater is designed to burn natural gas, or
when converted, liquid propane (LP). Never burn any
fuel not intended for use with this unit.
HOT SURFACES
Certain exposed surfaces of the Modena will reach
high temperatures during normal operation.
Clearances to combustibles must be maintained, as
specified in the “Clearances to Combustibles” section
of this manual.
Do not use this appliance if any part was submerged.
Immediately call a qualified service technician to
inspect the heater and to replace any part of the
control system and gas control that was submerged.
(Ne pas se servir de cet appareil s’il a été plongé
dans l’eau, complétement ou en partie. Appeler un
technicien qualifié pour inspector l’appareil et
remplacer toute partie du systéme de contrôle et
toute commande qui ont été plunges dans l’lau.)
WARNING: THIS GAS APPLIANCE MUST NOT BE
CONNECTED TO A CHIMNEY FLUE SERVING A
SEPARATE VENTED APPLIANCE. NEVER VENT
THE GAS HEATER TO OTHER ROOMS OR
BUILDINGS. MASONRY CONVERSIONS KITS ARE
AN ACCEPTABLE VENTING OPTION.
Due to high temperatures locate the appliance
out of traffic and away from furniture, draperies,
clothing and flammable materials. Alert children
and adults to the hazards of high surface
temperatures, and to stay away to avoid burns to
skin or clothing ignition. Ensure young children
are carefully supervised when in the same room
as the appliance. Do not place clothing or other
flammable material on or near the appliance.
(Surveille les enfants. Garder les vêtements, les
meubles, l’essence ou autres liquides à vapeur
inflammables lin de l’appareil.)
FIRE HAZARD
Do not store or use gasoline or other flammable
vapors or liquids in the vicinity of this appliance.
Locate the Modena out of traffic and away from
furniture, draperies, clothing, and flammable material.
4

Hearthstone Quality Home Heating Products, Inc. Modena Model #8140
SPECIFICATIONS
LISTED AS:Gas-Fired Direct-Vent Fireplace
Heater
Model: Modena Direct-Vent Gas Fireplace
Heater (#8140)
Testing Agency: Intertek Testing Services
Tested to: ANSI Z21.88b-2005/CSA 2.33b-
2005, CGA 2.17-M91
Report No. 310939-T4
Certified for US and Canada
Approved for Mobile Home Installation
Certified for use by:
Board of State Examiners of Plumbers and Gasfitters
100 Cambridge Street, Room 1511
Boston, Massachusetts 02202
18-14"
18-14"
49
Figure 1: Modena DV Model 8140 Dimensions
FUEL TYPE: NG LP
INPUT RATING (Btu/hr) 0-2000 ft 26,500 26,500
INPUT RATING (Btu/hr) 2000-4000 ft 26,500 26,000
ORIFICE SIZE (DMS) 0-2000 ft 38 52
ORIFICE SIZE (DMS) 2000-4500ft) 38 53
MANIFOLD PRESSURE - LO SETTING (in. W.c./kpa) 1.2/.29 3.3/0.8
MANIFOLD PRESSURE - HI SETTING (in. W.c./kpa) 3.5/0.87 10.0/2.48
MINIMUM INLET PRESSURE - (in.w.c./kpa) 5.0/1.25 11.0/2.88
MAXIMUM INLET PRESSURE- (in.w.c./kpa) 7.0/1.74 13.0/3.22
MINIMUM INPUT RATING (btu/hr) 16,000 15,000
MAXIMUM OUTPUT (btu/hr) 0-2000 ft 19,200 20,600
5

Hearthstone Quality Home Heating Products, Inc. Modena Model #8140
OWNER’S INFORMATION
The installation must conform with local codes or, in
the absences of local codes, the current National Fuel
Gas Code, ANSI Z223.1 (NFPA 54) or CAN/CGA
B149 Installation Code. (Installer l’appareil selon les
codes ou règlements locaux, ou, en l’absence de tels
règlements, selon les Codes d’installation CAN/CGA-
B149.)
Contact your dealer for any necessary warranty
service.
This stove is warranted by:
Hearthstone Quality Home Heating Products, Inc®
317 Stafford Ave.
Morrisville, Vermont 05661
DAILY OPERATION
The Modena is easily operated by the homeowner
once installed and adjusted by qualified service
personnel. The unit can be controlled automatically
via the programmable remote control, or manually by
placing the Remote Control Receiver switch in the
‘ON’ position during the heating season. When using
the remote T-stat transmitter (switch in the ‘REMOTE’
position), set it to the desired room temperature and
the unit will cycle on and off as required. If you select
the ‘ON’ position the unit will run (burn) regardless of
room temperature. You can vary the rate of heat
output by adjusting the variable output control located
on the gas control valve to meet the heating
requirements of the season. Choosing a low flame
setting will result in longer burn cycles at a reduced
output, while choosing a high flame setting will result
in a shorter, hotter burn cycle. Through trial and error,
the homeowner can select the optimum flame size for
their setting and application.
During the summer non-heating season, switch the
remote receiver to “OFF”, and turn off the pilot. This
will improve the overall efficiency of the unit as the
fuel used by the pilot is wasted. When putting the unit
back into service, follow the lighting instructions
described on page 19.
When the unit is first lit, especially when cool, it is
normal to experience some condensation on the
inside of the window glass. This condensation will
evaporate within the first few minutes of operation. If
you note continuous condensation on the window
glass or dripping water from any part of the unit or
venting system (chimney), immediately discontinue
operation of the unit and contact qualified service
personnel.
The Modena requires minimal routine maintenance
and care. Clean the area around, under, and behind
the unit on a regular basis to prevent the
accumulation of dust and lint. Ensure the Modena is
cool and off while cleaning, or servicing. Have
qualified service personnel inspect the unit, and
venting system once a year to insure that they are
clean, free of obstructions, safe, and in good working
order. If service or maintenance is required, ensure
qualified service personnel perform it.
SERVICE CAUTION
If you believe your Modena is in any way, not
performing properly, immediately discontinue
operation until the unit is inspected and approved by
qualified service personnel. Prior to servicing the
unit, turn the valve control knob clockwise to “OFF”.
Ensure the unit is cool prior to servicing and cleaning.
Use of any components not supplied by Hearthstone
on the stove voids all warranties. Do not substitute
components.
CAUTION: REPLACE ANY SHIELD, DOOR, OR
SAFETY SCREEN COMPONENT REMOVED FOR
SERVICING, PRIOR TO OPERATING THE UNIT.
WARNING: FAILURE TO POSITION THE PARTS IN
ACCORDANCE WITH THESE DIAGRAMS OR
FAILURE TO USE ONLY THE PARTS
SPECIFICALLY APPROVED WITH THIS
APPLIANCE MAY RESULT IN PROPERTY DAMAGE
OR PERSONAL INJURY
Conditionally approved for purchased mobile home
installation. This appliance may be installed in an
aftermarket permanently located, manufactured
(mobile) home, where permitted by local codes.
This appliance is only for use with the types of gas
indicated on the rating plate (NG and LP). This
appliance is factory set to burn Natural Gas (NG),
but is easily converted for use with Liquid Propane
(LP) with the included conversion kit. Only a
qualified service technician should convert this
stove.
Cet appareil peut être installé dans un maison
préfabriquée (mobile) déjà installée à demeure si les
règlements locaux le permettent.
Cet appareil doit être utilisé uniquement avec les
types de gas indiqués sur la plaque signalétique. Ne
pas l’utiliser avec d’autres gas sauf si un kitde
conversion certifié est installé
6

Hearthstone Quality Home Heating Products, Inc. Modena Model #8140
INSTALLER’S INFORMATION
CODES
Adhere to all local codes or, in their absence, the
latest edition of THE NATIONAL FUEL GAS CODE
ANSI Z223.1 (NFPA 54) or CAN/CGA B149.
Installation Code that can be obtained from:
AMERICAN NATIONAL STANDARDS INSTITUTE, INC.
1430 BROADWAY
NEW YORK, NY 10018
or
NATIONAL FIRE PROTECTION ASSOCIATION, INC.
BATTERY MARCH PARK
QUINCY, MA 02269
A manufactured home (mobile) OEM installation must
conform to the Manufactured Home Construction and
Safety Standard, Title 24 CFR, Part 3280 (U.S.) or
Standard for Manufactured Home Installation,
ANSI/NCBCS A225.1 or Standard for Gas Equipped
Recreational Vehicles and mobile Housing, CSA
Z240.4.CAN/SCA Z240 MH (Canada). (Installer
l’appareil selon les codes ou règlements locaux, ou,
en l’absence de tels règlements, selon les Codes
d’installation CAN/CGA-B149.)
ITEMS REQUIRED FOR INSTALLATION
External regulator
Piping which complies with state and local codes
Pipe sealant approved for use with fuel gas
Manual shutoff valve
Sediment trap (see page Error! Bookmark not
defined.)
Tee joint
Pipe wrench
Phillips head screwdriver
7/16-inch wrench
Other parts as required by state or local code
*Safety Glasses
*Gloves
PACKING LIST
1-Modena Gas-Fired Heater
1-Set of Decorative Fire stones
1-Decorative Top Steel
1-Owner’s Manual Envelope
1-LP Conversion kit
1-Accessory box (batteries)
1-Touch up paint
1-Venting/stove connector
1-Remote Receiver & Remote Control Thermostat
1- 5/32” hex head wrench
1-Mobile home bolt down kit
Note: Vent kits and components are supplied
separately. Failure to use the venting
components specified by Hearthstone will void
your warranty and could result in inefficient or
unsafe operating conditions.
SPECIFIED VENTING MANUFACTURER CONTACT
INFORMATION
Simpson
www.duravent.com/
1-800-835-4429
[email protected]
American Metal Products
AmeriVent
www.americanmetalproducts.com/vent/amerivent.htm
1-800-423-4270
[e-mail]
Selkirk Corporation
http://www.selkirkinc.com/
1.800.992.VENT (8368)
[email protected]
[email protected]
Security Chimneys International Limited
Secure Vent
www.securitychimneys.com/pages/chimneys
UNPACKING AND INSPECTION
Unpack and Inspect for Damage -
The Modena is packaged to withstand normal
shipment without damage. However, damage can still
occur during transit; so take care to inspect for
damage when unpacking and installing the unit. If
any damaged or missing parts are detected,
immediately contact your dealer.
Do not install, or put into service, a damaged or
incomplete heater.
The Modena requires a pilot shield. This shield is
shipped with the unit. Ensure the shield is
installed over the pilot with the open end to the
left (when facing the unit).
Inspect the Modena for visible or concealed damage.
The unit should appear square and true with metal
parts smooth and free of bends and dents. The
painted surfaces should be free of scratches flaking,
or blemishes. If visible or concealed damage is found
or suspected, contact your dealer for instructions.
Always use great care when handling the decorative
fire stones, as they are fragile and subject to damage
and breakage if handled roughly. Otherwise, set the
fire stones aside until called for during the installation.
7

Hearthstone Quality Home Heating Products, Inc. Modena Model #8140
INSTALLATION PREPARATION
HEARTH REQUIREMENT /FLOOR PROTECTION
You can install the Modena directly on a non-
combustible surface or wood flooring. When installing
the Modena on carpet, vinyl, or any other
combustible floor other than wood flooring, it must be
installed on any non-combustible or wood panel
extending the full width and depth of the stove.
CLEARANCE TO COMBUSTIBLES
Due to high surface temperatures, install the unit out
of traffic and away from furniture and draperies. Do
not place clothing and other flammable material on or
near the heater. When positioning the unit always
maintain adequate clearances around air openings
into the combustion chamber and allow for adequate
ventilation. You must maintain minimum clearances
to combustibles as shown in the illustrations of this
section.
Ensure you consider the need for access to the gas
control valve access door on the front of the unit as
well as full access for periodic cleaning and servicing.
Caution: These clearances represent
minimum distances in all cases, which,
through testing in an independent laboratory
to ANSI and CSA standards, will prevent fire
or spontaneous combustion. We do not
control the combustible materials exposed to
heat by this product; therefore, an
assessment must be made by the installer to
prevent consequential damage of walls and
flooring.
OPENING THE FRONT DOOR
In order to gain access to the firebox you must open
the front door and remove the glass frame assembly.
The front door is held closed by a magnet. Simply
pull the door open to gain access to the glass frame.
Remove the 12 screws that mount the frame
assembly to the stove using the 5/32” hex wrench
provided (see Figure 14). It is not necessary to
remove the four screws on hinge side of the glass
frame. Simply loosen the screws enough to allow the
frame to slide in and out. Reinstall these screws
before the door is closed for operation; the door
will not seal without them. .
Figure 2 - Clearance to Combustibles
8

Hearthstone Quality Home Heating Products, Inc. Modena Model #8140
2” minimum vent pipe clearance to combustibles.
Figure 3: Minimum Vent Configuration and Clearances
9

Hearthstone Quality Home Heating Products, Inc. Modena Model #8140
ACCEPTABLE DIRECT-VENT TERMINATION CAP LOCATIONS
Figure 4: Termination Location & Clearances
10

Hearthstone Quality Home Heating Products, Inc. Modena Model #8140
VENTING INFORMATION
VENT CONNECTION
1. The Modena Direct Vent is approved for
installation only with the vent connecting
components listed; Simpson Dura-Vent Direct
Vent GS, AmeriVent Direct, Selkirk Direct
Temp™ or Secure Vent systems. Use the
following instructions along with the pipe
manufacturer’s instructions to complete the
installation.
2. Install the vent system according to the
manufacturer’s instructions.
RESTRICTION PLATE
A vent restriction plate adjusts the flow rate of the
exhaust gases. This ensures proper flame
characteristics and efficiency for the wide variety of
vent configurations. Controlling the draft also
changes the aesthetics of the flame. The restriction
plate consists of a rotating shutter in the flue
connector. This shutter is attached to a rod that
protrudes through the back of the pipe. This rod has
a lock nut attached. On the very end of the rod is an
indicator slot. This slot shows the relative position of
the restrictor shutter. If the slot is pointing up and
down (12+ 6 o’clock position) the restrictor is open. If
it is pointing left and right (9+3 o’clock, the restrictor
is in the closed position. The restriction plate has
unlimited settings. Depending on the vent
configuration, you may be required to adjust the
restriction plate position. Once the desired position is
reached, use a 7/16” wrench to lock down the hex
nut.
OPEN
Figure 5: Restrictor in open position
CLOSED
Figure 6: Restrictor in closed position
11

Hearthstone Quality Home Heating Products, Inc. Modena Model #8140
NOTE: These positions are based on lab results, and can have some variance.
Figure 7: Venting Configurations & Restriction Settings
12

Hearthstone Quality Home Heating Products, Inc. Modena Model #8140
VENTING COMPONENTS &CONFIGURATION
Do not vent the Modena jointly with any other
appliance. Vent the Modena directly to the outside of
the building using a proper termination as listed in
this manual. The only types of venting pipe approved
for use with your Modena Direct-Vent stove is
Simpson Dura-Vent’s GS, AmeriVent Direct, Selkirk
Direct Temp™ and Secure Vent Direct-Vent Pipe.
The venting configuration diagram is shown in Figure
7. After determining the proper venting configuration
for your stove, select the vent system that will best
accommodate your installation.
Caution: Ensure there is no wiring or
plumbing in the chosen location.
Caution: Do not recess venting terminations
into a wall or siding.
Note: If further direction is needed for installation,
please refer to the venting instructions, which are
provided with the venting components.
DIRECT-VENT TERMINATION CAP ROOF
CLEARANCES
The vent/air intake termination clearances above the
high side of an angled roof are as follows:
Roof Pitch Feet Meters
Flat to 6/12 1 0.3
7/12 to 9/12 2 0.6
10/12 to 12/12 4 1.2
13/12 to 16/12 6 1.8
17/12 to 21/12 8 2.4
Listed are Simpson Dura-Vent, AmeriVent Direct,
Selkirk Direct Temp™ and Secure Vent components
acceptable for installation, along with the minimum
venting kit available. The venting system must be
comprised of the appropriate venting components as
specified.
APPROVED VENTING SYSTEM COMPONENTS
(The following are components that are available,
BUT NOT necessary for all installations)
900 Elbow Vertical Vent Cap
450 Elbow 36” Snorkel
6" Straight
9" Straight (Simpson only) Vinyl Siding Standoff 4 x 6 5/8"
12" Straight Round Ceiling Support
24" Straight Thimble Covers
11"-14 5/8" Adjustable Pipe Wall thimble
36" Straight Horizontal Vent Cap
48" Straight
CHIMNEY LINER SYSTEM
Direct-Vent Chimney Liner Termination Kit
Chimney Liner Flex
Co-Linear Flex Connector
Co-Axial to Co-Linear Appliance Connect (Masonry
approved, not to exceed 16’ measured from the
stove top)
MINIMUM VENT KIT
Vent connector (Provided with unit)
24” Straight
90 degree elbow
12” Straight
Wall Thimble Cover
Wall Thimble
Horizontal Vent Cap
Dry fit your venting and take measurements.
Pipe dimensions will vary by manufacturer
and supplier.
STANDARD HORIZONTAL TERMINATION
MINIMUM VENTING KIT INSTALLATION
INSTRUCTIONS
1. Install the 24” straight section on top of the vent
connector.
2. Place the 90 degree elbow on the 24” section.
Facing the direction expected to penetrate the
wall.
3. Attach the 12” straight section to the 90 degree
elbow. Move the stove and pipe assembly
backwards until the 12” straight is flush against
the wall. Pull up on the pipe to ensure that there
is a ¼” per foot rise coming out of the stove to the
wall.
4. Draw a circle around the pipe. Use the center of
this circle as the center point of the 10” x 10”
square wall pass through. Cut and frame the wall
pass through opening.
5. Place the interior wall thimble into the 10” x 10”
wall pass through. Secure it with 4 screws (not
provided). Install the exterior portion of the
thimble in similar fashion, overlapping the 2
sections.
Caution: For buildings with vinyl siding,
install a vinyl siding standoff between the
vent cap and the exterior wall.
6. Install the horizontal vent termination on the
outside of the wall. Ensure both of the retaining
straps extend through interior wall thimble.
Before attaching the vent termination to the
13

Hearthstone Quality Home Heating Products, Inc. Modena Model #8140
outside of the house, run a bead of non-
hardening mastic around its’ outside edges to
ensure a good seal between it and the wall.
Ensure the arrow on the end cap points up.
Secure the cap to the wall with appropriate
screws.
7. Move the stove and vent pipe into position.
Ensure the 12” vent pipe extends into the
horizontal vent cap a minimum of 1-1/4”. Secure
the vent using the straps from the horizontal vent
termination to the interior 6” pipe with 2 sheet
metal screws, keeping the screws as close to the
wall thimble as possible. Bend or cut any excess
strapping, so that it is not visible after the
installation is complete.
14

Hearthstone Quality Home Heating Products, Inc. Modena Model #8140
Wiring Diagram - Modena 8140
Wiring Color KEY:
W
G
YG Br
Br
YG
W
G
OFF
ON REMOTE
ELECTRICAL CONNECTIONS
NOTE: Open the valve compartment door on the
lower front of the unit to access electrical and gas
connections.
REMOTE CONTROL THERMOSTAT
The Modena 8140 comes equipped with a
programmable ON/OFF/Thermostat remote control.
We recommend the use of the thermostatic remote
for more comfortable performance, however you may
still override the thermostat by setting the switch to
“ON”. The thermostat controls the unit by “calling for
heat.” The thermostat turns the unit on when the
room is cold, and turns the unit off once the room is
warmed sufficiently. If desired, you can use any wired
wall thermostat in place of the remote. You cannot
use both the remote and a wall thermostat
simultaneously.
REMOTE THERMOSTAT PLACEMENT
Place the thermostat transmitter in the same room or
living space as the unit. Since the transmitter is the
device measuring the temperature, you will want to
keep it off the floor and away from any influences that
may cause the temperature in the vicinity of the
thermostat to be unrepresentative of the room
temperature in general. Such influences might
include strong lighting, a heater vent from the central
heating system, or a nearby sunny or drafty window.
Do not place the thermostat transmitter directly
behind or too close to the unit, otherwise heat from
the unit will immediately satisfy the thermostat and
turn the unit off.
WIRING INSTRUCTIONS
CAUTION: Label all wires prior to disconnection
when servicing controls. Wiring errors can cause
improper and dangerous operation. Verify proper
operation after servicing. (Attention: Au moment
de l’entretien des commandes, étiquetez tous les
fils avant le débranchement. Des erreurs de
câblage peuvent entraîun fonctionnement
inadequate et dangereux.)
The proper location of wire connections is shown
in Figures 8 + 9.
Figure 8: Modena 8140 Wiring Diagram
15

Hearthstone Quality Home Heating Products, Inc. Modena Model #8140
Figure 9: Gas Control Valve
GAS SUPPLY &CONNECTIONS
NOTICE: A qualified technician must connect the
heater to the gas supply and leak test the unit
before it is approved for use. Consult all codes.
WARNING: THE UNIT MUST BE INSTALLED AND
CONNECTED IN ACCORDANCE WITH LOCAL
CODES, OR IN THE ABSENCE OF LOCAL CODES,
WITH THE MOST CURRENT EDITION OF THE
NATIONAL FUEL GAS CODE ANSI Z223.1 (NFPA
54) OR CAN/CGA B149 INSTALLATION CODE.
NFPA Code and Hearthstone require the use of a
dedicated sediment trap just upstream of the unit.
Damage to the valve or other components, due to the
lack of a sediment trap (figure 10), are not covered by
warranty.
GAS CONNECTIONS
The gas supply connection is made to the gas control
valve at the middle, lower rear of the stove, using a
3/8” male NPT fitting. The supply line should be ½”
diameter, or appropriately sized to provide a sufficient
gas supply to meet the maximum demand of the unit
without undue loss of pressure. We recommend a
flexible line to avoid mechanical load on the valve
and to ease thread alignment, but refer to local
codes.
CAUTION: Check Gas Type!
GAS SUPPLY
Isolate the Modena from the gas supply piping
system by closing its individual manual shutoff valve
during any pressure testing of the gas supply piping
system at test pressures equal to or greater than ½
psig (3.5kPa). Disconnect the Modena and its
individual shut-off valve from the piping system when
testing the valve and connections at pressures equal
to, or greater than ½ psig.
GAS PRESSURE ADJUSTMENT
NOTE: A QUALIFIED TECHNICIAN MUST
PERFORM THIS PROCEDURE!
Once connected to the gas supply, the supply line
and manifold gas pressures must be tested. The
supply line pressure is tested to ensure it meets the
minimum gas supply pressure as listed in the
Specifications for the type of fuel in use (natural gas
or LP), by connecting a manometer to the supply line
and adjusting the incoming pressure if necessary to
meet the required supply line pressure as listed in
specifications. The manifold pressure tap on the gas
control valve, refer to Figure 9 for location.
Figure 10: Typical Sediment Trap (required in all
installations)
16

Hearthstone Quality Home Heating Products, Inc. MODENA 8140 Gas-Fired Direct-Vent
FIRE STONE PLACEMENT
CAUTION: Fragile! Handle fire stone set with
care. Always wear gloves and safety goggles
while handling the stone set.
Place only the Fire stone set supplied with the
Modena in the firebox. Do not place any other logs,
wood logs, or other materials in the firebox. If the
stone set is damaged or broken contact your dealer
for replacement. Only replace the stones with the
same approved replacement parts. These
components affect the combustion quality and safety
of the heater. The Fire stone set is durable; however,
they will break if subjected to rough or improper
handling. Exact positioning of the stone set is
required in order to obtain a pleasing flame pattern
and efficient combustion. Incorrect stone placement
may cause carbon build-up; excess thermal stress on
the stone set and stove parts, reduced efficiency, and
high levels of carbon monoxide. If the stone set does
not fit into the firebox exactly as outlined, contact
your dealer for assistance.
INSTALLATION OF THE FIRE STONE SET
Follow the order of the following photos in order to
install the stone set: (Stone set shown in white for
better view- actual stones will be dark gray)
1. Install 10 stones in a circle pattern. The stones
must not cover the burner ports of the outer ring
on the burner, and should fit in between the
burner ports.
2. Install 4 stones around the pilot assembly as
shown above.
3. Install 5 stones in the middle of the stone circle.
Leave the center open and place them carefully
to not cover the burner ports.
4. Install 10 stones on the second layer, filling in
spaces in the lower level. Distribute the stones
evenly over the burner. NEVER stack the stones
more than 2 high
5. Using the rest of the stones provided, fill in the
firebox floor evenly and randomly.
6. Ensure that you leave the ports open over the
pilot and where the main burner ignites.
WARNING: DO NOT PLACE ANY FIRE STONES
OVER THE BURNER SCREEN!
REMOVAL OF FIRE STONE SET
CAUTION: The Fire Stone set retains heat and can
be very hot! Allow 2 to 3 hours after pilot light is
turned off before handling.
To remove the Fire Stone set, follow the Installation
of Fire Stone set instructions in the reverse order.
17

Hearthstone Quality Home Heating Products, Inc. MODENA 8140 Gas-Fired Direct-Vent
LIGHTING THE UNIT FOR THE FIRST TIME
WARNING: IF YOU DO NOT FOLLOW THESE
INSTRUCTIONS EXACTLY, A FIRE OR EXPLOSION
MAY RESULT CAUSING PROPERTY DAMAGE,
PERSONAL INJURY OR LOSS OF LIFE.
CAUTION: LIGHTING THE MODENA FOR THE
FIRST TIME AND ADJUSTMENTS TO THE UNIT
SHOULD BE PERFORMED BY QUALIFIED
SERVICE PERSONNEL.
This appliance is designed only for use with the
type(s) of fuel gas indicated on the rating plate. This
appliance is not convertible for use with other gases,
unless a certified kit is used.
Cet appareil doit être atilisé uniquement avec les
types de gas indiqués sur la plaque signalétique. Ne
pas l’utiliser avec d’autres gas sauf si un kited
conversion certifié est installé. )
SMOKE AND FUMES WARNING
When lit for the first time, the Modena will emit some
smoke and fumes. This is normal “off-gassing” of the
paints and oils used in the manufacturing and
assembly of the unit. Open windows to vent the
room if necessary. The off-gassing and fumes will
subside after the first 10 to 20 minutes of operation.
ODORS AND IMPURITIES
A heater of this type may produce other odors during
heater operation due to impurities that may exist in
the immediate area. Sources of impurities can be
cleaning solvents, paint solvents, cigarettes, candles,
smoke, pet hair, dust, adhesives, new carpet, and/or
textiles. Such odors usually dissipate. However,
opening a window or otherwise providing additional
ventilation to the area can alleviate the condition
quickly. If any odor persists, remove potential
sources, or contact your dealer or an authorized
service technician.
PILOT LIGHT
The Modena has a piezoelectric spark igniter (the
black push button located next to the gas control
valve behind the door), which ignites the pilot light by
means of a spark at the pilot light assembly.
DO NOT LIGHT PILOT OR BURNER BY HAND
Never attempt to light the pilot or main burner by
hand with a match or lighter. If, after repeated
attempts, the pilot light fails to light using the
piezoelectric igniter, discontinue operation; turn off
the gas at the gas control valve, and immediately
contact qualified service personnel for assistance.
PREPARE FOR LIGHTING
Prepare for the lighting procedure by adjusting the
thermostat (if equipped) to its lowest setting or OFF
position. If the gas control knob is not in the OFF
position, turn the knob fully clockwise to OFF. Locate
the variable output control knob and turn it fully
clockwise to the highest setting.
Prior to lighting the unit for the first time, wait 5
minutes to allow any residual gas within the unit to
dissipate. Smell all around the appliance area for
gas. Be sure to smell next to the floor because some
gases (LP) are heavier than air and will settle on the
floor. If you do not smell gas after this five-minute
period, proceed with the lighting procedure. If you do
smell gas, DO NOT proceed with the lighting
procedure. Instead, immediately refer to the What
to Do If You Smell Gas Warning, on the cover of
this manual.
NOTE: The valve control has an interlock device.
After shutting off all gas flow, the pilot burner
cannot be relit until the thermocouple has cooled,
releasing the electromagnet (approx. 60
seconds). The gas control knob is designed to
operate by hand. Do not use any tools during this
operation. Damaged knobs may result in serious
injury.
INITIAL ADJUSTMENTS
Once the Modena is set in place, connected and
assembled as described in the “Clearances To
Combustibles”, “Venting Components &
Configurations,” “Electrical Connections”, and “Gas
Supply and Connections” sections of this manual, the
unit is almost ready to light for the first time. The
manufacturer tests each unit prior to shipment, so
ignition should take place without failure. However, a
number of small adjustments may be necessary to
compensate for variations in gas pressure, altitude,
and other factors particular to each installation.
VARIABLE OUTPUT CONTROL
The gas control valve is equipped with a variable
output control. This control varies the rate of heat
produced by the unit by varying the gas pressure to
the TEK Burner. A combination of heat output and
the thermostat setting affect the length of the burn
cycle. If your stove cycles on and off too often, first
try reducing the burn cycle by turning the HI/LOW
knob, on the control valve, to a lower setting. Using
the variable output control, the heat output of the unit
can be reduced for mild fall and spring months, or
18

Hearthstone Quality Home Heating Products, Inc. MODENA 8140 Gas-Fired Direct-Vent
maximized for the colder winter months. This
adjustment can be made by the homeowner as
necessary by turning the variable output control knob
to “HI”, “LO” or any setting in between.
LIGHTING INSTRUCTIONS
NOTE: The gas control knobs and the piezo igniter
are located behind the control valve access door,
under the front of the unit.
1. STOP! Read the What To Do If You Smell Gas!
Warning (on the cover of this manual). Ensure
the front door is closed, and the lock screws
are in place.
2. Set the on/off/remote switch or thermostat to the
“OFF” position.
3. Push in and turn the gas control knob clockwise
to “OFF”. (If not previously lit, the knob should be
in this position.)
4. Wait (5) five minutes to clear out any gas. If you
then smell gas, STOP! Smell all around the
appliance area for gas. Be sure to smell next to
the floor because some gases are heavier than
air and will settle on the floor. If you smell gas
immediately follow the What To Do If You
Smell Gas! warning on the cover of this Manual.
If you do not smell gas, proceed to the next step.
5. Turn gas control knob counter-clockwise to
“PILOT”.
6. Push in the control knob all the way and hold in.
Immediately light the pilot with the gas lighter
(push in and “click” the piezoelectric spark igniter
button several times until lit). Continue to hold the
control knob in for about 20 seconds after the
pilot is lit. Release the knob and it will pop back
out. The pilot should remain lit. If the pilot goes
out, repeat the operation.
If knob does not pop out when released, stop,
shut off the gas supply to the heater and
immediately call a qualified service technician
or gas supplier.
If the pilot will not stay lit after several tries,
turn the gas control knob “OFF” and call a
qualified service technician or gas supplier.
7. After the pilot lights, turn the gas control knob
counter-clockwise to “ON”.
8. If the ON/OFF/remote switch is set to “ON”, the
stove should now light. If the remote (or
thermostat) is installed, set the ON/OFF/ remote
switch to “remote” and program the remote to
“ON”. Then set the desired temperature.
9. Shut the gas control valve access door.
10. If “Remote” was selected, set remote to “ON” and
set desired temperature setting. Normally, if
Remote position was selected, the main burner is
cycled on and off by the thermostat or the “on/off”
switch located on the bottom of the thermostat
body.
NOTE: When pressing/clicking the piezoelectric
spark ignition button to light the pilot, watch
through the glass (front) of the unit. Click the
igniter button until a flame is visible at the pilot.
Once the pilot is lit, continue to press on the gas
control knob for another 20 seconds, then
release. Ascertain that the pilot is still lit by
looking through the front door. If lit, then turn the
gas control knob fully counter-clockwise to the
“ON” position. If the pilot fails to light, or if it went
out due to a premature release of the gas control
knob while depressed in the “PILOT” position,
wait 60 seconds for the Interlock to release. Then
repeat the lighting process as described in this
section of the manual.
Once the pilot is lit, the gas control knob is turned to
the “ON” position, and the ON/OFF/Remote switch is
turned to “ON”, the main burner should light
immediately. If you would like to use the thermostat
and it is installed, switch the ON/OFF/Remote switch
to thermostat. Turn the remote transmitter to "ON"
and set it to a higher position so that it "calls" for heat
in order to light the main burner (i.e. turns the unit
on). Note that the remote thermostat controls the
on/off cycling of the main burner, but the pilot
remains lit regardless of the remote thermostat
setting. The only way to turn the pilot off is to turn the
gas control knob fully clockwise to the “OFF” position.
TO TURN OFF GAS TO APPLIANCE
1. Set the Remote thermostat to the “OFF” position
or turn the ON/OFF/REMOTE switch to the “OFF”
position.
2. If shutting the unit off for the non-heating season,
turn the gas control knob fully clockwise to the
“OFF” position. Do not force the knob to turn.
AIR SHUTTER
The air shutter is used to regulate the air-to-gas
combustion mixture, which in turn influences the size
and color of the flames. The air shutter is factory set
in the general location needed for Natural Gas (NG),
however, if the unit is not burning as well as it should,
then the air shutter may need adjusting. The air
shutter may need adjustment once the unit has been
installed to compensate for variations in supply line
pressure, restriction plate position, altitude, fuel gas
type conversions, and other variables.
19

Hearthstone Quality Home Heating Products, Inc. MODENA 8140 Gas-Fired Direct-Vent
To determine if the air shutter needs adjustment, it is
necessary to view the flame pattern with the variable
output control knob at its highest setting. Allow the
unit to operate for at least 10 minutes to allow the
entire unit to reach temperature, and for the flame
pattern to stabilize. Generally, the more air (open
shutter) in the mixture, the bluer the flame. Less air
(closed shutter) results in a more yellow flame, but
too little air will result in incomplete combustion, low
efficiency and a dirty burn. There are two simple
guidelines to aid in determining the correct flame
pattern:
If the flame at the base of the stones is
completely blue, the air shutter is possibly open
too far;
If the flame is dirty (sooty) or licks the top of the
stove, the air shutter is possibly closed too far.
Some conditions cannot be corrected through air
shutter adjustment; an adjustment must be made to
the gas supply pressure or by changing the restriction
plate setting. Qualified service personnel must
perform supply line/manifold gas line pressure
adjustments and restrictor plate adjustments. Do not
attempt to complete any part of the installation or
adjustment of this unit unless technically qualified to
do so.
AIR SHUTTER ADJUSTMENTS
The air shutter adjuster, located behind the valve
access door at the lower front of the unit, is
adjustable while the stove is burning. Under the
burner assembly, but above the valve is the air
shutter handle. It is a steel handle bent down for you
to grasp. A thumb screw locks the shutter position
once set correctly. This handle and screw become
very hot during operation. Loosen the thumb screw
and slide the shutter back and forth a couple of times
to understand the “throw” of the shutter. Push the
handle forward to close the air shutter. Pull it towards
you to open the air to the unit. When the flame
pattern is correct, tighten the locking nut without
turning the screw. The air shutter is factory set and
only a qualified gas technician should make
adjustments.
Note: Very little movement is needed to substantially
change the burn and flame patterns. Some conditions
cannot be corrected through air shutter adjustment;
an adjustment must be made to the gas supply
pressure. Supply line/manifold gas line pressure
adjustments must be performed by qualified service
personnel. Do not attempt to complete any part of
the installation or adjustment of this unit unless
technically qualified to do so.
PILOT ADJUSTMENT
The pilot light is preset by the manufacturer and
should not need adjustment. However, you should
perform a periodic visual check of the pilot flame. The
pilot light flame should be large enough to engulf the
thermopile and thermocouple located next to the
pilot, but not so large as to create excessive noise or
consume excessive gas (Refer to figure 11). If
needed, the pilot flame is adjustable by means of the
pilot light adjustment screw located on the gas control
valve (see figure 9). Open the valve door to access
the pilot adjustment screw. Note that the pilot flame
must engulf the thermopile so that the thermopile can
generate sufficient milli-voltage (325 to 500-mv) to
power the gas control valve. The flame on the pilot
should look like Figure 11. Controlling the Modena by
the remote or wall-mounted thermostat may become
erratic, nonexistent, or the unit may go out, if the pilot
flame is too small or misdirected away from the
thermopile.
IGNITER
THERMOCOUPLE
PILOT
FLAME
THERMOPILE
PILOT CLIP
Figure 11: Pilot assembly
WARNING: THE CONTROL HAS AN INTERLOCK
DEVICE. IF THE STOVE WAS LIT, IT WILL NOT
RELIGHT IMMEDIATELY. AFTER SHUTTING OFF
ALL GAS FLOW, THE PILOT BURNER CANNOT BE
RELIT UNTIL THE THERMOCOUPLE HAS COOLED,
RELEASING THE ELECTROMAGNET (APPROX. 60
SEC.). THE GAS CONTROL KNOB IS DESIGNED
TO OPERATE BY HAND. DO NOT USE ANY TOOLS
DURING THIS OPERATION.
BURNER FLAME APPEARANCE
Once the unit is lit, observe the flame pattern and
adjust as necessary. You should perform a periodic
visual check of the burner flame. The burner flames
can be adjusted by means of the air shutter. To
20