This is an unvented gas-red heater. It uses air (oxygen)
from the room in which it is installed. Provisions for adequate combustion and ventilation air must be provided.
Refer to Air for Combustion and Ventilation section on
page 6 of this manual.
WARNING: Improper installation, adjustment, al-
teration, service or maintenance can cause injury or
property damage. Refer to this manual for correct installation and operational procedures. For assistance
or additional information consult a qualied installer,
service agency or the gas supplier.
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 propane or natural
gas. Field conversion by any other means including the
use of a kit is not permitted.
* Aftermarket: Completion of sale, not for purpose of resale, from the manufacturer.
IMPORTANT: Read this owner’s manual carefully and
completely before trying to assemble, operate, or service this heater. Improper use of this heater can cause
serious injury or death from burns, re, explosion, electrical shock and carbon monoxide poisoning. Failure to
follow these instructions will void the warranty.
Only a qualied installer, service
agent, or local gas supplier may
install and service this product.
WARNING: Keep the appli-
ance area clear and free from
combustible materials, gasoline,
and other ammable vapors and
liquids.
WARNING: This appliance
is equipped for use with natural
gas OR propane gas. Field conversion is not permitted.
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.
DANGER: Carbon monoxide
poisoning may lead to death!
Carbon Monoxide Poisoning: Early signs of
carbon monoxide poisoning resemble the u,
with headaches, dizziness or nausea. If you
have these signs, the heater may not be working properly. Get fresh air at once! Have heater
serviced. Some people are more affected by
carbon monoxide than others. These include
pregnant women, people with heart or lung
disease or anemia, those under the inuence
of alcohol and those at high altitudes.
Natural And Propane/LP Gas: Natural and
Propane/LP gas are odorless. An odor-making
agent is added to the gas. The odor helps you
detect a gas leak. However, the odor added to
the gas can fade. Gas may be present even
though no odor exists.
WARNING: Do not use a
blower insert, heat exchanger
insert or any accessory not approved for use with this log set.
WARNING: Do not allow fans
to blow directly into the heater.
Avoid any drafts that alter burner
ame pattern including ceiling
fans. Altered burner patterns
can cause sooting.
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3200068-01A
Page 4
SAFETY
WARNING: Any change to
this heater or its controls can
be dangerous.
WARNING: Do not place
clothing or other flammable
material on or near the appliance. Never place any objects
in the heater.
WARNING: Due to high temperatures, the appliance should
be located out of trafc and away
from furniture and draperies.
WARNING: Heater becomes
very hot when running. Keep
children and adults away from
hot surfaces to avoid burns or
clothing ignition. Heater will remain hot for a time after shutoff.
Allow surfaces to cool before
touching.
WARNING: Carefully supervise young children when they
are in the room with the heater.
WARNING: Make sure a replace screen is in place before
running heater.
1. Do not place Propane/LP supply tank(s)
inside any structure. Propane/LP supply
tank(s) must be placed outdoors.
2. This heater should not be installed in a
bedroom or bathroom unless installed as
a vented appliance.
3. This heater needs fresh air ventilation to
run properly. This heater has an Oxygen
Depletion Sensing (ODS) safety shutoff
system. The ODS shuts down the heater
if not enough fresh air is available. See Air for Combustion and Ventilation, page 6.
If heater keeps shutting off, see Trouble-shooting, page 25.
4. Do not add extra logs or ornaments such
as pine cones, vermiculite, or rock wool.
Using these added items can cause soot-
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ing. Do not add lava rock around base.
Rock and debris could fall into the control
area of heater. After servicing, always
replace screen before operating heater.
5. If replace has glass doors, never operate
this heater with glass doors closed. If you
operate heater with doors closed, heat will
build-up inside replace and cause glass
to burst. If replace opening has vents
at the bottom, you must open the vents
before operating log set. Always operate
heater with glass doors fully open.
6. This log heater is designed to be smokeless. If logs ever appear to be smoking,
turn off heater and call a qualied service
technician. NOTE: During initial operating,
slight smoking could occur due to log curing and heater burning off manufacturing
residues.
7. To prevent the creation of soot, follow the
instructions under Care and Maintenance
page 24.
8. Do not run heater:
• Where ammable liquids or vapors are
used or stored.
• Under dusty conditions.
9. Before using furniture polish, wax, carpet
cleaner, or similar products, turn heater
off. If heated, the vapors from these products may create a white powder residue
within burner box or on adjacent walls or
furniture.
10. Do not use heater if any part has been
under water. Immediately call a qualied
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.
11. Turn off and let cool before servicing. Only
a qualied service person should service
and repair heater.
12. Operating heater above elevations of
4,500 feet could cause pilot outage.
13. Do not use this heater if any log is broken.
Do not operate heater if a log is chipped
(dime-size or larger).
14. To prevent performance problems, do
not use propane/LP fuel tank of less than
100 lbs. capacity.
15. Solid fuels should not be burned in
replace in which a vent-free log set is
installed. Do not use this heater to cook
food or burn paper or other objects.
200068-01A4
Page 5
PRODUCT FEATURES
This heater is clean burning. It requires no outside venting. There is no heat loss out of a
vent or up a chimney. Heat is generated by realistic, dancing yellow ames. This heater is
designed for vent-free operation with ue damper closed. It has been tested and approved to
ANSI Z21.11.2 standard for unvented heaters. State and local codes in some areas prohibit
the use of vent-free heaters.
SAFETY PILOT
This heater has a pilot with an Oxygen Depletion Sensing (ODS) safety shutoff system. The
ODS/pilot shuts off the heater if there is not
enough fresh air.
PIEZO IGNITION SYSTEM
This heater is equipped with a piezo ignitor.
This system requires no matches, batteries,
or other sources to light heater.
LOCAL CODES
Install and use heater with care. Follow all
local codes. In the absence of local codes,
use the latest edition of The National Fuel Gas Code, ANSI Z223.1/NFPA 54*.
*Available from:
American National Standards Institute, Inc.
25 West 43rd Street
New York, NY 10036
National Fire Protection Association, Inc.
1 Batterymarch Park
Quincy, MA 02269-9101
UNPACKING
CAUTION: Do not remove the
metal data plates from the burner
pan. The data plates contain
important product information.
1. Remove logs and burner base assembly
from carton. NOTE: Do not pick up burner
base assembly by burners as this could
damage heater. Always handle base assembly by grate.
2. Remove all protective packaging applied
to logs and base for shipment.
3. Check all items for any shipping damage.
If damaged, promptly inform dealer where
you purchased the heater.
State of Massachusetts: The installation
must be made by a licensed plumber or
gas tter in the Commonwealth of Massachusetts.
Sellers of unvented propane or natural
gas-red supplemental room heaters shall
provide to each purchaser a copy of 527
CMR 30 upon sale of the unit.
In the State of Massachusetts the gas
cock must be a T-handle type. The State
of Massachusetts requires that a exible
appliance connector cannot exceed three
feet in length.
Ignitor
Figure 1 - Product Identication
(Logs May Vary by Model, HLA Base
Control Knob
Shown)
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5200068-01A
Page 6
QUALIFIED INSTALLING AGENCY
Only a qualied agency should install and
replace gas piping, gas utilization equipment
or accessories, and repair and equipment servicing. The term “qualied agency” means any
individual, rm, corporation, or company that
either in person or through a representative
is engaged in and is responsible for:
a) Installing, testing, or replacing gas piping
or
b) Connecting, installing, testing, repairing,
or servicing equipment; that is experienced
WATER VAPOR: A BY-PRODUCT OF
UNVENTED ROOM HEATERS
Water vapor is a by-product of gas combustion. An unvented room heater produces approximately one (1) ounce (30 mL) of water
for every 1,000 BTUs (0.3 KWs) of gas input
per hour. Unvented room heaters are recommended as supplemental heat (a room) rather
than a primary heat source (an entire house).
In most supplemental heat applications, the
water vapor does not create a problem. In
most applications, the water vapor enhances
the low humidity atmosphere experienced
during cold weather.
AIR FOR COMBUSTION AND VENTILATION
in such work; that is familiar with all precautions required; and that has complied with
all the requirement of the authority having
jurisdiction.
In areas that prohibit the use of vent-free
heaters, the log set has been tested and
approved to the ANSI Z21.60 standard for
Vented Decorative Logs. When used as a
vented log set refer to additional instructions
on page 11.
The following steps will help ensure that water
vapor does not become a problem.
1. Be sure the heater is sized properly for the
application, including ample combustion
air and circulation air.
2. If high humidity is experienced, a dehumidier may be used to help lower the
water vapor content of the air.
3. Do not use an unvented room heater as
the primary heat source.
WARNING: This heater shall
not be installed in a conned
space or unusually tight construction unless provisions are
provided for adequate combustion and ventilation air. Read the
following instructions to insure
proper fresh air for this and
other fuel-burning appliances
in your home.
Today’s homes are built more energy efcient
than ever. New materials, increased insulation
and new construction methods help reduce
heat loss in homes. Home owners weather
strip and caulk around windows and doors
to keep the cold air out and the warm air in.
During heating months, home owners want
their homes as airtight as possible.
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While it is good to make your home energy
efcient, your home needs to breathe. Fresh
air must enter your home. All fuel-burning appliances need fresh air for proper combustion
and ventilation.
Exhaust fans, replaces, clothes dryers and
fuel burning appliances draw air from the
house to operate. You must provide adequate
fresh air for these appliances. This will insure
proper venting of vented fuel-burning appliances.
WARNING: 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.
200068-01A6
Page 7
AIR FOR COMBUSTION AND VENTILATION
Ventilation
WARNING: If the area in which
the heater may be operated does
not meet the required volume for
indoor combustion air, combustion and ventilation air shall be
provided by one of the methods
described in the National Fuel
Gas Code, ANSI Z223.1/NFPA
54, the International Fuel Gas
Code, or applicable local codes.
VENTILATION AIR
Ventilation Air From Inside Building
This fresh air would come from an adjoining
unconned space. When ventilating to an
adjoining unconned space, you must provide
two permanent openings: one within 12" of the
ceiling and one within 12" of the oor on the
wall connecting the two spaces (see options
1 and 2, Figure 2). You can also remove door
into adjoining room (see option 3, Figure 2).
Follow the National Fuel Gas Code, ANSI
Z223.1/NFPA 54, Air for Combustion and
Ventilation for required size of ventilation
grills or ducts.
Ventilation Air From Outdoors
Provide extra fresh air by using ventilation
grills or ducts. You must provide two permanent openings: one within 12" of the ceiling
and one within 12" of the oor. Connect these
items directly to the outdoors or spaces open
to the outdoors. These spaces include attics
and crawl spaces. Follow the National Fuel
Gas Code, ANSI Z223.1/NFPA 54, Air for
Combustion and Ventilation for required size
of ventilation grills or ducts.
IMPORTANT: Do not provide openings
for inlet or outlet air into attic if attic has a
thermostat-controlled power vent. Heated air
entering the attic will activate the power vent. If
an attic opening is unacceptable. Recongure
the conned space, by adding ventilation to
adjoining unconned space or removing doors
as indicated in Figure 2, Option 1 and 2. The
combined spaces must have enough fresh air
to supply all appliances in both spaces. Otherwise a lower input model must be installed
that meets the room size requirements.
Ventilated
Attic
To Attic
Outlet
Air
Outlet
Air
12"
Grills Into
Adjoining
Room,
Option 1
Or
Remove
Door into
Adjoining
Room,
Option
3
Ventilation Grills
Into Adjoining Room,
12"
Option 2
Figure 2 - Ventilation Air from Inside
Building
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To
Crawl
Inlet
Air
Inlet Air
Ventilated
Crawl Space
Space
Figure 3 - Ventilation Air from Outdoors
7200068-01A
Page 8
INSTALLATION
NOTICE: This heater is intended
for use as supplemental heat.
Use this heater along with your
primary heating system. Do not
install this heater as your primary heat source. If you have a
central heating system, you may
run system’s circulating blower
while using heater. This will help
circulate the heat throughout the
house. In the event of a power
outage, you can use this heater
as your primary heat source.
WARNING: A qualied service person must install heater.
Follow all local codes.
WARNING: Before installing
in a solid fuel burning replace,
the chimney ue and rebox
must be cleaned of soot, creosote, ashes and loose paint by
a qualified chimney cleaner.
Creosote will ignite if highly
heated. A dirty chimney ue may
create and distribute soot within
the house. Inspect chimney ue
and rebox for damage. If damaged, repair ue before operating heater.
WARNING: Seal any fresh
air vents or ash clean-out doors
located on oor or wall of replace. If not, drafting may cause
pilot outage or sooting. Use a
heat-resistant sealant. Do not
seal chimney ue damper.
WARNING: Never install the
heater
• in a bedroom or bathroom
• in a recreational vehicle
• where curtains, furniture, cloth-
ing, or other ammable objects
are less than 36" from the front,
42" from top, or 16" from sides
of the heater.
• in high trafc areas
• in windy or drafty areas
CAUTION: This heater cre-
ates warm air currents. These
currents move heat to wall surfaces next to heater. Installing
heater next to vinyl or cloth wall
coverings or operating heater
where impurities (such as tobacco smoke, aromatic candles,
cleaning uids, oil or kerosene
lamps, etc.) in the air exist, may
discolor walls or cause odors.
NOTICE: State or local codes
may only allow operation of this
appliance in a vented conguration. Check your state or local
codes.
WARNING: This appliance is
designed for installation in only
a solid-fuel burning masonry or
UL 127 factory-built replace or
in a listed ventless rebox enclosure. Exception: DO NOT install
this appliance in a factory-built
replace that includes instructions stating it has not been
tested or should not be used
with unvented gas logs.
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200068-01A8
Page 9
INSTALLATION
IMPORTANT: Vent-free heaters add moisture
to the air. Although this is benecial, installing
heater in rooms without enough ventilation air
may cause mildew to form too much moisture.
See Air for Combustion and Ventilation, pages
6 and 7.
Before beginning assembly or operation of
the product, make sure all parts are present. Compare parts with package contents
list. If any part is missing or damaged, do
not attempt to assemble, install or operate
the product. Contact customer service for
replacement parts.
Before installing heater, make sure you have
the items listed below:
• Hardware package (provided with heater)
• Electric drill with 3/16" drill bit
• Phillips screwdriver
CHECK GAS TYPE
Be sure your gas supply is right for your heater. Otherwise, call dealer where you bought
the heater for proper type heater.
CLEARANCES TO
COMBUSTIBLES
WARNING: Maintain the mini-
mum clearances. If possible, provide greater clearances from oor,
ceiling, and adjoining wall. Measure
from outermost point of heater.
Minimum Fireplace Clearance To
Combustible Materials
Side Wall 16", Ceiling 42", Front 36"
LOG SIZING REQUIREMENTS
Minimum Firebox Size
18" Log Set: Height 20", Depth 14",
Front Width 29", Rear Width 23"
24" Log Set: Height 20.5", Depth 14",
Front Width 34", Rear Width 25.5"
30" Log Set: Height 20.5", Depth 14",
Front Width 39", Rear Width 31.5"
Minimum Clearances For Side
Combustible Material, Side Wall
and Ceiling
A. Clearance from the side of the replace
cabinet to any combustible material and
wall should follow diagram in Figure 4.
B. Clearance from the top of the replace
opening to the ceiling must not be less
than 42".
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*
*Minimum 16" from Side Wall
Figure 4 - Minimum Clearance for
Combustible to Wall
Minimum Noncombustible Material
Clearances
If Not Using Mantel
Note: If using a mantel, proceed to If Using
Mantel, page 10. If not using a mantel, follow
the information below.
You must have noncombustible material(s)
above the replace opening. Noncombustible
materials (such as slate, marble, tile, etc.)
must be at least 1/2" thick. With sheet metal,
you must have noncombustible material behind it. Noncombustible material must extend
at least 12" up (for all models). See Figure 5
for minimum clearances.
Requirements for Safe Installation
(A) 12" or more: Noncombustible material okay.
(A) Between 8" and 12":
24" & 30" Models, install replace hood
accessory. 18" Models, noncombustible
material okay.
(A) Less than 8": Noncombustible
material must be extended to at least 8".
See Between 8" and 12", above. If you
cannot extend material, you must operate
heater with ue damper open.
Noncombustible
Material Distance
Figure 5 - Heat Resistant Material (Slate,
Marble, Tile, etc.) Above Fireplace
9200068-01A
Page 10
INSTALLATION
Mantel Shelf
Minimum
Noncombustible
Material
Mantel Shelf
NOTICE: This heater may be
used as a vented product. If so,
you must always operate log set
with chimney ue damper open.
If running log set with damper
open, noncombustible material
above replace opening is not
needed. Go to Installing Damper
Clamp Accessory for Vented
Operation, page 11.
If Using Mantel
You must have noncombustible material(s)
above the replace opening. Noncombustible
materials (such as slate, marble, tile, etc.)
must be at least 1/2" thick. With sheet metal,
10"
8"
6"
1
2
/2"
Minimum
Noncombustible
Material
(A)
8" 14" 16" 20"
8"
12" 18" 20" 22" 24" 24" Log Set
Minimum
Noncombustible
Material Height
Distances to
Underside of
Mantel
Figure 6 - Minimum Mantel Clearances
Without Using Hood
12"
10"
8"
6"
2½"
8"
12" 15" 18" 20"
Hood
Min.
Distances to
Underside of
Mantel
Figure 7 - Minimum Mantel Clearances
When Using Hood
Underside of
Mantel Shelf
All minimum
distances are
in inches
18" Log Set
30" Log Set
Top of
Fireplace
Opening
Underside
of Mantel
Shelf
Top of
Fireplace
Opening
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you must have noncombustible material behind it. Noncombustible material must extend
at least 8" up. If noncombustible material is
less than 12", you must install the replace
hood accessory. Even if noncombustible
material is more than 12", you may need the
hood accessory to deect heat away from
your mantel shelf. See Figures 5, 6 and 7, for
minimum clearances.
MANTEL CLEARANCES
In addition to meeting noncombustible material clearances, you must also meet required
clearances between replace opening and
mantel shelf. If you do not meet the clearances
listed below, you will need a hood.
Determining Minimum Mantel
Clearance
If you meet minimum clearance between
mantel shelf and top of replace opening, a
hood is not required (see Figure 6).
Determining Minimum Mantel
Clearance When Using a Hood
If minimum clearances in Figure 6 are not met,
you must have a hood. When using a hood
there are still certain minimum mantel clearances required. Follow minimum clearances
shown in Figure 7, when using hood.
NOTICE: Surface temperatures
of adjacent walls and mantels
become hot during operation.
Walls and mantels above the
firebox may become hot to
the touch. If installed properly,
these temperatures meet the
requirement of the national
product standard. Follow all
minimum clearances shown in
this manual.
NOTICE: If your installation does
not meet the minimum clearances shown, you must do one
of the following:
• operate the logs only with the
ue damper open
• raise the mantel to an accept-
able height
• move the mantel
200068-01A10
Page 11
INSTALLATION
Combustible
FLOOR CLEARANCES
A. If installing appliance on the oor level,
you must maintain the minimum distance
of 14" to combustibles (see Figure 8).
Combustible
14"
Min.
Material
Noncombustible Material
Figure 8 - Minimum Fireplace Clearances
If Installed at Floor Level
INSTALLING DAMPER CLAMP ACCESSORY FOR VENTED
OPERATION
When used as a vented heater, appliance
must be installed only in a solid-fuel burning
replace with a working ue constructed of
noncombustible material. You may use this
heater as a vented product. There are three
reasons for operating your heater as a vented
model:
1. The replace does not meet the clearance
requirements for vent-free operation.
2. State or local codes do not permit ventfree operation.
3. You prefer vented operation.
If reasons number 1 or 2 above apply, you
must permanently open chimney ue damper.
You must install the damper clamp accessory
(not provided). This will insure vented operation (see Figure 10). The damper clamp will
keep damper open. Installation instructions
are included with clamp accessory.
See chart below for the minimum permanent
ue opening you must provide. Attach damper
clamp so the minimum permanent opening will
be maintained at all times.
B. If combustible materials are less than 14"
to the replace, you must install appliance
at least 5" above the combustible ooring
(see Figure 9).
this heater to replace oor. If
not, heater will move when you
adjust controls. Moving heater
may cause a gas leak.
WARNING: If installing in a
sunken replace, special care
is needed. You must raise the
replace oor to allow access to
heater control panel. This will insure adequate air ow and guard
against sooting and controls
being damaged. Raise replace
oor with noncombustible material. Make sure material is secure.
2. Mark screw locations through holes in
mounting brackets (see Figure 11). If
installing in a brick-bottom replace, mark
screw locations in mortar joint of bricks.
3. Remove heater base from replace.
4. Drill holes at marked locations using 3/16"
drill bit.
5. Apply pipe joint sealant lightly to tting
threads. Connect approved exible gas
hose to gas regulator of heater (see Figure 11). Note: Never apply pipe sealant
to are tting threads. Hold gas regulator
with a wrench when connecting exible
gas hose.
6. Attach base assembly to replace oor
using two masonry screws provided in
hardware package (see Figure 11).
7. Connect to gas supply. See Connecting To Gas Supply, page 13.
CAUTION: Do not pick up
heater base assembly by burners.
This could damage heater. Only
handle base assembly by grates.
IMPORTANT: Make sure the heater burners
are level. If heater is not level, heater will not
work properly.
Installation Items Needed
• hardware package (provided with heater)
• electric drill with 3/16" masonry drill bit
1. Position heater base assembly in replace. Center base assembly left to right
and front to back inside replace.
Masonry Screw
Mounting Bracket
Figure 11 - Attaching Heater Base to
Fireplace Floor
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200068-01A12
Page 13
INSTALLATION
CONNECTING TO GAS SUPPLY
WARNING: A qualied service technician must connect
heater to gas supply. Follow all
local codes.
WARNING: This appliance
requires a 1/2" NPT (National
Pipe Thread) inlet connection to
the pressure regulator.
WARNING: Do not overtighten gas connections.
WARNING: For natural gas,
Never connect heater to private
(non-utility) gas wells. This gas is
commonly known as wellhead gas.
CAUTION: For propane/LP gas,
never connect heater directly to the
gas supply. This heater requires
an external regulator (not supplied). Install the external regulator
between the heater and propane/
LP supply. Gas supplier provides
external regulator for natural gas.
The installer provides the external
regulator for propane/LP gas.
CAUTION: Use only new,
black iron or steel pipe. Internally tinned copper tubing may
be used in certain areas. Check
your local codes. Use pipe of
1/2" diameter or greater to allow
proper gas volume to heater. If
pipe is too small, undue loss of
pressure will occur.
CAUTION: For natural gas,
check your gas line pressure
before connecting heater to gas
line. Gas line pressure must be
no greater than 10.5" WC. If gas
line pressure is higher, heater
regulator damage could occur.
CAUTION: Avoid damage to
regulator. Hold gas regulator
with wrench when connecting
into gas piping and/or ttings.
CAUTION: Use pipe joint
sealant that is resistant to gas
(Propane/LP or Natural Gas).
Before installing heater, make sure you have
the items listed below:
• external regulator for propane/LP unit only
(supplied by installer)
• piping (check local codes)
• sealant (resistant to natural gas and propane/LP gas)
• equipment shutoff valve*
• test gauge connection*
• sediment trap
• tee joint
• pipe wrench
• exible gas hose (check local codes)
* A CSA design-certied equipment shutoff
valve with 1/8" NPT tap is an acceptable alternative to test gauge connection. Purchase
the optional CSA design certied equipment
shutoff valve from your dealer.
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13200068-01A
Page 14
INSTALLATION
Typical Inlet Pipe Diameters
Use 1/2" black iron pipe or greater. Installation must include an equipment shutoff valve,
union, and plugged 1/8" NPT tap. Locate
NPT tap within reach for test gauge hook up.
NPT tap must be upstream from heater (see
Figure 13).
IMPORTANT: Install an equipment shutoff
valve in an accessible location. The equipment shutoff valve is for turning on or shutting
off the gas to the appliance.
For propane/LP installations, apply pipe
joint sealant lightly to male threads. This will
prevent excess sealant from going into pipe.
Excess sealant in pipe could result in clogged
heater valves.
The installer must supply an external regulator. The external regulator will reduce incoming gas pressure. You must reduce incoming
gas pressure to between 11" WC and 14" WC.
If you do not reduce incoming gas pressure,
heater regulator damage could occur. Install
external regulator with the vent pointing down
as shown in Figure 14. Pointing the vent down
protects it from freezing rain or sleet.
Approved Flexible Gas Hose
(if allowed by local codes)
Natural Gas
From Gas Meter
(5" W.C.** to 10.5"
W.C. Pressure)
Propane/LP
CSA Design-Certied
Equipment Shutoff Valve
With 1/8" NPT Tap*
From External
Regulator
(11" W.C.** to 14" W.C.
Pressure)
Install sediment trap in supply line as shown
in Figure 13. Place sediment trap where it is
within reach for cleaning. Place sediment trap
where trapped matter is not likely to freeze.
A sediment trap traps moisture and contaminants. This keeps them from going into heater
controls. If sediment trap is not installed or is
installed wrong, heater may not run properly.
WARNING: Test all gas piping
and connections for leaks after
installing or servicing. Correct
all leaks at once (see page 15).
Fitting
Flexible Gas Hose (if
allowed by local codes)
Figure 12 - Attaching Flexible Gas Hose
to Heater Gas Regulator
Propane/LP
Supply Tank
Heater Gas
Regulator
External
Regulator with
Vent Pointing
Down
3" Minimum
Cap Pipe Tee
Nipple Joint
Sediment Trap
Figure 13 - Gas Connection
* Purchase the optional CSA design-certied equipment
shutoff valve from your dealer.
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Figure 14 - External Regulator
with Vent Pointing Down
200068-01A14
Page 15
INSTALLATION
CHECKING GAS CONNECTIONS
WARNING: Test all gas piping
and connections, internal and
external to unit, for leaks after
installing or servicing. Correct
all leaks at once.
WARNING: Never use an open
ame to check .for a leak. Apply a
noncorrosive leak detection uid
to all joints. If bubbles form, there
is a leak. Correct all leaks at once.
PRESSURE TESTING GAS SUPPLY
Test Pressures In Excess Of 1/2 PSIG (3.5 kPa)
1. Disconnect heater with its appliance main
2. Cap off open end of gas pipe where equip-
3. Pressurize supply piping system by either
4. Check all joints of gas supply piping sys-
5. Correct all leaks at once.
6. Reconnect heater and equipment shutoff
Test Pressures Equal To or Less
1. Close equipment shutoff valve (see Fig-
2. Pressurize supply piping system by either
Equipment
Shutoff Valve
Figure 15 - Equipment Shutoff Valve
PIPING SYSTEM
gas valve (control valve) and equipment
shutoff valve from gas supply piping system. Pressures in excess of 1/2 PSIG will
damage heater regulator.
ment shutoff valve was connected.
opening propane/LP supply tank valve
for propane/LP gas or opening main gas
valve located on or near gas meter for
natural gas or using compressed air.
tem. Apply noncorrosive leak detection
uid to all joints. If bubbles form, there
may be a leak.
valve to gas supply. Check reconnected
ttings for leaks.
Than 1/2 PSIG (3.5 kPa)
ure 15).
opening propane/LP supply tank valve
for propane/LP gas or opening main gas
valve located on or near gas meter for
natural gas or using compressed air.
Open
Closed
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3. Check all joints from gas meter to equipment shutoff valve for natural gas or
propane/LP supply to equipment shutoff
valve for propane/LP (see Figure 16 or 17).
Apply a noncorrosive leak detection uid
to all joints. Bubbles forming show a leak.
4. Correct all leaks at once.
PRESSURE TESTING HEATER GAS
1. Open equipment shutoff valve (see Figure 15).
2. Open main gas valve located on or near
gas meter for natural gas or open propane/LP supply tank valve.
3. Make sure control knob of heater is in the
OFF position.
4. Check all joints from equipment shutoff
valve to control valve (see Figure 16 or 17).
Apply a noncorrosive leak detection uid
to all joints. Bubbles forming show a leak.
5. Correct all leaks at once.
6. Light heater (see Lighting Instructions on
page 20 or 21). Check all other internal
joints for leaks.
7. Turn off heater (see To Turn Off Gas Ap-pliance, page 21 or 22).
Propane/LP
Supply Tank
External Regulator
Figure 16 - Checking Gas Joints for
Gas Meter
Equipment Shutoff Valve
Figure 17 - Checking Gas Joints for
CONNECTIONS
Equipment
Shutoff Valve
Control Valve
Location
Propane/LP Gas
Control Valve
Location
Natural Gas
15200068-01A
Page 16
INSTALLATION
ELECTRICAL WIRING (MILLIVOLT)
CAUTION: Label all wires prior to disconnection when servicing
controls. Wiring errors can cause improper and dangerous operation. Verify proper operation after servicing.
Note: The millivolt valve is a self-powered combination gas control that does not require
110 VAC to operate.
White
Red
Switch
Red
Green
Black
Optional Wall Switch
or Remote Receiver
Figure 18 - Wiring Diagram
CONNECTING REMOTE RECEIVER
MODELS WZ(N,L)(18,24,30)MVA ONLY
Models WZ(N,L)(18,24,30)MVA can be connected to an aftermarket hand held remote receiver
(not supplied by ProCom Heating, Inc.)
Refer to the remote receiver manufacturer's installation Instructions and the Wiring Diagram
shown in Figure 18 for proper connection and use.
OPTIONAL POSITIONING OF THERMOSTAT SENSING BULB
For masonry and factory-built metal replace
If your log set cycles to pilot, but the room
temperature drops to a lower than ideal
comfort level before the log set comes back
on, you may want to reposition the thermostat
sensing bulb.
The thermostat sensing bulb is located near
the gas valve assembly on the mounting
bracket. This location allows the thermostat
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to keep the room temperature at an ideal
comfort level for most replace applications.
For positioning the thermostat sensing bulb
elsewhere, a mounting clip is available.
Tools needed: 1/4" hex driver or socket.
1. Remove logs. Locate the gas valve assembly and thermostat sensing bulb.
200068-01A16
Page 17
INSTALLATION
2. Remove the thermostat sensing bulb out
of the plastic clip (see Figure 22).
IMPORTANT: Do not force or bend the thermostat sensing bulb or capillary.
3. The thermostat sensing bulb may be located to the lower right front side of replace.
Determine location of sensing bulb, but
do not mount sensing bulb until step 5. If
you have a masonry replace, (see Figure
21 for location). If you have a factory-built
metal replace, see Figure 20 for location.
If your replace has glass doors, position
sensing bulb directly behind door gap on
right bottom side (see Figure 23).
4. The mounting clip must be a minimum
of 3" from bottom of replace to prevent
crimping of capillary. Once you have decided on a location, thoroughly clean the
area. Remove the paper backing from the
adhesive on back of mounting clip (provided with the heater in hardware package) (see Figure 19). Press the clip into
the new location so that the thermostat
sensing bulb will be positioned vertically
with the capillary at the bottom (see Figure
24). Slide the thermostat sensing bulb into
the clip.
Thermostat
Sensing Bulb
Adhesive-Backed
Mounting Clip
Figure 21 - Installing Thermostat Sensing
Bulb on Masonry Fireplace
Thermostat
Sensing Bulb
Adhesive-Backed
Mounting Clip
Figure 22 - Installing Thermostat
Sensing In Factory-Built Metal Fireplace
Thermostat
Sensing Bulb
Figure 19 -Adhesive-Backed Mounting
Mounting
Bracket
Figure 20 - Removing Thermostat
Clip
Plastic Clip
Gas Valve
Assembly
Thermostat
Sensing Bulb
Sensing Bulb
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Adhesive-Backed
Mounting Clip
Glass Doors
Figure 23 - Installing Thermostat Sensing
Bulb behind Glass Door
Thermostat
Sensing Bulb
Capillary
Figure 24 – Position the Thermostat
Sensing Bulb in the Vertical Position
With Capillary at the Bottom
Adhesive-Backed
Mounting Clip
Do Not Crimp
Capillary
17200068-01A
Page 18
INSTALLATION
INSTALLING LOGS
WARNING: Failure to position the parts in accordance
with these diagrams or failure
to use only parts specically
approved with this heater may
result in property damage or
personal injury.
CAUTION: After installation
and periodically thereafter,
check to ensure that no yellow
ame comes in contact with any
log. With the heater set to High,
check to see if yellow ames
contact any log. If so, reposition logs according to the log
installation instructions in this
manual. Yellow ames contacting logs will create soot.
It is very important to install the logs exactly
as instructed. Do not modify logs. Use only
logs supplied with heater.
Each log is marked with a number. This
number will help you to identify the logs when
installing.
After installing logs, add decorative cinders
around the grate base, do not place any
decorative cinders on logs or burner.
1. Insert pins on the back of log #1 into the
slots on the rear log bracket on the back
of the grate base (see Figure 26).
2. Insert pins on the back of log #2 into the
slots on the left side of the middle log
bracket (see Figure 26).
3.
Insert pins on the back of log #3 into the
slots on the right side of the middle log
bracket (see Figure 26).
4.
Insert pins on the back of log #4 into
the slots on the left side of the front log
bracket (see Figure 26).
Rear Log Bracket
Middle Log Bracket
Log #1
Figure 25 - Log Base (WZL30MVA Shown)
Log #2
Figure 26 - Installing Logs #1, #2, #3 and #4
(WZL30MVA Shown)
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Log #4
Front Log Bracket
Log #3
200068-01A18
Page 19
INSTALLATION
5. Place log #5 on the top of log #1 and log
#2, inserting pin in log #1 into the hole in
the bottom of log #5 (see Figure 27).
6. Place log #6 on the top of log #1 and log
#3, inserting pin in log #1 into the hole in
the bottom of log #6. Be sure the opposite
end of log #6 aligns with the recess in log
#3 (see Figure 27).
7. Add lava rocks around the grate base of
heater. Do not place any lava rocks on
logs or burner.
OPERATION
Log #5
Figure 27 - Installing Logs #5 and #6
(WZL30MVA Shown)
Log #6
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.
FOR YOUR SAFETY READ BEFORE LIGHTING
WARNING: If you do not fol-
low these instructions exactly,
a re or explosion may result
causing property damage, personal injury or loss of life.
A. This appliance has a pilot which must
be lighted by hand. When lighting the
pilot, follow these instructions exactly.
B. BEFORE LIGHTING 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 try to light any appliance.
• Do not touch any electric switch; do
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The initial break-in operation should last four
to six 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 will be slight and will disappear with
continued use.
This appliance must not be used with glass
doors in the closed position. This can lead
to pilot outages and severe sooting outside
the replace.
Always operate heater with glass doors fully
open.
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 hand to push in or turn
the gas control knob. Never use tools.
If the knob will not push in or turn
by hand, don’t try to repair it, call a
qualied service technician. Force or
attempted repair may result in a re or
explosion.
D. Do not use this appliance if any part
has been under water. Immediately call
a qualied service technician to inspect
the appliance and to replace any part of
the control system and any gas control
which has been under water.
19200068-01A
Page 20
OPERATION
MILLIVOLT CONTROL MODELS (MVA)
LIGHTING INSTRUCTIONS
WARNING: You must oper-
ate this heater with the screen
in place. Make sure screen is
installed before running heater.
NOTICE: During initial operation
of new heater, burning logs will
give off a paper-burning smell.
Orange ame will also be present. Open damper or window to
vent smell. This will only last a
few hours.
1. STOP! Read the safety information,
page 19.
2. Make sure equipment shutoff valve is fully
open.
3. This gas log set is equipped with an ignition device (piezo) which automatically
lights the pilot. If the piezo ignitor does
not light the pilot, see Manual Lighting Procedure, page 21.
4. Turn control knob clockwise to the
OFF position. Set the ame control to the
lowest setting.
5. Wait ve (5) minutes to clear out any gas.
Then smell for gas around heater and near
the oor. If you smell gas, STOP! Follow
"B" in the safety information, page 19. If
you do not smell gas, go to the next step.
6. From the OFF position, turn the control
knob counterclockwise to the IGN
position. Press in control knob for ve (5)
seconds.
Note: The rst time that the heater is
operated after connecting the gas supply,
the control knob should be pressed for
about thirty (30) seconds. This will allow
air to bleed from the gas system. If pilot
does not stay lit, refer to Troubleshooting,
pages 25 though 28. Also contact a quali-
ed service technician or gas supplier for
repairs. Until repairs are made, light pilot
with match.
• If control knob does not pop up when
released, contact a qualified service
technician or gas supplier for repairs.
7. With control knob pressed in, push
down and release ignitor button. This
will light pilot. The pilot is attached to
the rear of the burner. If needed, keep
pressing ignitor button until pilot lights.
Note: If pilot does not stay lit, refer to
Troubleshooting, pages 25 though 28.
Also contact a qualied service technician
or gas supplier for repairs. Until repairs
are made, light pilot with match. To light
pilot with match, see Manual Lighting
Procedure, page 21.
8. Keep control knob pressed in for 60 seconds to prevent the ame detector from
shutting off the gas while the probe is
warming up. The exciter ring on the pilot
tube must glow red before the burners can
be lit. After 60 seconds, release control
knob.
Note: If pilot goes out, repeat steps 4
through 8. Wait one (1) minute before
lighting pilot again.
9. Turn control knob counterclockwise
to the ON position. The main burner
should light.
Note: Please wait one minute after shut-
ting off heater to allow the control valve
to reset before starting again.
10. After the pilot has been lit for one minute,
the burners can be turned on. Turn the
ON/OFF switch to the ON position or adjust the thermostat to the desired setting.
Ignitor
Button
Manual/
Remote
Switch
Figure 28 - Ignitor Button and Control
Knob Locations
Flame
Control
Knob
Control
Knob
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200068-01A20
Page 21
OPERATION
11. If the gas logs will not operate, see To Turn
Off Gas to Appliance and call our technical
service department at 1-866-573-0674.
CAUTION: Do not try to ad-
Thermopile
Ignitor
Electrode
just heating levels by using the
equipment shutoff valve.
WARNING: Wait 30 seconds
before readjusting the heater
when the control knob has been
turned down to a lower setting.
Figure 29 - Pilot Assembly (MVA model)
TO TURN OFF GAS TO APPLIANCE
1. Turn control knob clockwise to the OFF position.
2. Close equipment shutoff valve.
MANUAL LIGHTING PROCEDURE
1. Follow steps 1 through 6 under Lighting
Instructions, page 20.
2. With control knob pressed in, strike a
match, and hold near pilot. Pilot should
light.
MANUAL CONTROL MODELS (HLA)
WARNING: You must oper-
ate this heater with the screen
in place. Make sure screen is
installed before running heater.
NOTICE: During initial operation
of new heater, burning logs will
give off a paper-burning smell.
Orange ame will also be present. Open damper or window to
vent smell. This will only last a
few hours.
1. STOP! Read the safety information,
page 19.
2. Make sure equipment shutoff valve is fully
open.
3. Push in control knob slightly and turn
clockwise to the OFF position.
Shutting Off Heater
3. Keep control knob pressed in for 30 seconds after lighting pilot. After 30 seconds,
release control knob.
4. Make sure the heater screen is in place
before operating heater.
LIGHTING INSTRUCTIONS
4. Wait ve (5) minutes to clear out any gas.
Then smell for gas around heater and near
the oor. If you smell gas, STOP! Follow
"B" in the safety information, page 19. If
you do not smell gas, go to the next step.
5. Push in and turn the control knob counterclockwise to the PILOT position.
Press in control knob for ve (5) seconds.
Note: The rst time that the heater is
operated after connecting the gas supply,
the control knob should be pressed for
about thirty (30) seconds. This will allow
air to bleed from the gas system. If pilot
does not stay lit, refer to Troubleshooting,
pages 25 though 28. Also contact a quali-
ed service technician or gas supplier for
repairs. Until repairs are made, light pilot
with match.
• If control knob does not pop up when
released, contact a qualified service
technician or gas supplier for repairs.
Pilot Tube
Thermocouple
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21200068-01A
Page 22
OPERATION
6. With control knob pressed in, push
down and release ignitor button. This
will light pilot. The pilot is attached to
the rear of the burner. If needed, keep
pressing ignitor button until pilot lights.
Note: If pilot does not stay lit, refer to
Troubleshooting, pages 25 though 28.
Also contact a qualied service technician
or gas supplier for repairs. Until repairs
are made, light pilot with match. To light
pilot with match, see Manual Lighting
Procedure.
7. Keep control knob pressed in for 10 seconds after lighting pilot.
Note: If pilot goes out, repeat steps 5
through 7. Wait one (1) minute before
lighting pilot again.
9. To select the desired heating level, slightly
press the control knob and turn counterclockwise . Release the downward
pressure on the knob while continuing to
turn until the knob locks at the desired
setting. Do not operate between locked
positions.
TO TURN OFF GAS TO APPLIANCE
Shutting Off Heater
Turn control knob clockwise to the
OFF position.
Note: Please wait one minute after shut-
ting off heater to allow the control valve
to reset before starting again.
10. If the gas logs will not operate, see To Turn
Off Gas to Appliance and call our technical
service department at 1-866-573-0674.
CAUTION: Do not try to ad-
just heating levels by using the
equipment shutoff valve.
Thermocouple
Figure 30 - Pilot Assembly HLA Models
Shutting Off Burner Only (pilot
Turn control knob clockwise to the
PILOT position.
Ignitor
Electrode
Pilot Burner
Pilot Air Inlet Hole
stays lit)
MANUAL LIGHTING PROCEDURE
1. Follow steps 1 through 5 under Lighting
Instructions, page 21.
2. With control knob pressed in, strike a
match, and hold near pilot. Pilot should
light.
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3. Keep control knob pressed in for 30 seconds after lighting pilot. After 30 seconds,
release control knob.
4. Make sure the heater screen is in place
before operating heater.
200068-01A22
Page 23
INSPECTING BURNERS
Approx. 3"-6" Above Top of Logs
Approx. 3"-6" Above Top of Logs
IMPORTANT: Owner’s should check pilot ame pattern and burner ame pattern often.
Incorrect ame patterns indicate the need for cleaning (see Care and Maintenance,
page 24) or service.
WARNING: Only a qualied service person should service and
repair heater. This includes maintenance requiring replacement or
alteration of components.
PILOT FLAME PATTERN
Figure 31 shows a correct pilot ame pattern.
Figure 32 shows an incorrect pilot ame pattern. The incorrect pilot ame is not touching
the thermocouple. This will cause the thermocouple to cool, which shuts the heater off.
If pilot ame pattern is incorrect, as shown
in Figure 32
• turn heater off (see To Turn Off Gas to Ap-pliance, page 21 or 22)
• see Troubleshooting pages 25 through 28.
Notice: Do not mistake orange ames with
yellow tipping. Dirt or other ne particles enter
the heater and burn causing brief patches of
orange ame.
HLA Model Shown
Thermocouple
WARNING: If yellow tipping
occurs, your heater could produce increased levels of carbon
monoxide. If the burner ame
pattern shows yellow tipping,
follow instructions at bottom of
this page.
Figure 33 shows a correct burner ame pattern. Figure 34 shows an incorrect burner ame
pattern. If burner ame pattern is incorrect then:
• turn heater off (see To Turn Off Gas to Appliance, page 21 or 22).
• see Troubleshooting pages 25 through 28.
Figure 33 - Correct Burner Flame Pattern
Air is drawn into the burner through the holes in the tting at the entrance to the burner. These
holes may become blocked with dust or lint. Periodically inspect these holes for any blockage
and clean as necessary. Blocked air holes will create soot.
Figure 31 - Correct Pilot Flame Pattern
Thermocouple
Figure 32 - Incorrect Pilot Flame Pattern
BURNER FLAME PATTERN
More Than 8" Above Top of Logs
Figure 34 - Incorrect Burner Flame
BURNER PRIMARY AIR HOLES
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Pilot Burner
Pattern
23200068-01A
Page 24
CARE AND MAINTENANCE
WARNING: Turn off heater and let cool before servicing.
CAUTION: You must keep control areas, burner, and circulating
air passageways of heater clean. Inspect these areas of heater before
each use. Have heater inspected yearly by a qualied service technician. Heater may need more frequent cleaning due to excessive lint
from carpeting, bedding material, pet hair, etc.
WARNING: Failure to keep the primary air opening(s) of the
burner(s) clean may result in sooting and property damage.
MAIN BURNER
Periodically inspect all burner ame holes with
the heater running. All slotted burner ame
holes should be open with yellow ame present. All round burner ame holes should be
open with a small blue ame present. Some
BURNER INJECTOR HOLDER AND PILOT AIR INLET HOLE
We recommend that you clean the unit every 2,500 hours of operation or every three
months. We also recommend that you keep
the burner tube and pilot assembly clean
and free of dust and dirt. To clean these
parts we recommend using compressed air
no greater than 30 PSl. Your local computer
store, hardware store, or home center may
carry compressed air in a can. You can use
a vacuum cleaner in the blow position. If using compressed air in a can, please follow
the directions on the can. If you don’t follow
directions on the can, you could damage the
pilot assembly.
1. Shut off the unit, including the pilot. Allow
the unit to cool for at least thirty minutes.
2. Inspect burner, pilot and primary air inlet
holes on injector for dust and dirt (see
Figure 35).
ODS/PILOT
Use a vacuum cleaner, pressurized air, or a
small, soft bristled brush to clean.
A yellow tip on the pilot ame indicates dust
and dirt in the pilot assembly. There is a small
pilot air inlet hole about 2" from where the
pilot ame comes out of the pilot assembly
(see Figure 36). With the unit off, lightly blow
air through the air inlet hole. You may blow
through a drinking straw if compressed air is
not available.
• If you remove logs for cleaning, refer to Install-
ing Logs, page 18, to properly replace logs.
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burner ame holes may become blocked by
debris or rust, with no ame present. If so,
turn off the heater and let it cool, and remove
blockage. Blocked burner ame holes will
create soot.
3. Blow air through the ports/slots and holes
in the burner. Also clean the pilot assembly.
4. Check the injector holder located at the
end of the burner tube again. Remove any
large particles of dust, dirt, lint, or pet hair
with a soft cloth or vacuum cleaner nozzle.
5. Blow air into the primary air holes on the
injector holder.
6. In case any large clumps of dust have
now been pushed into the burner. Repeat
steps 3 and 4.
Burner
Tube
Primary Air Inlet Hole
Figure 35 - Burner Tube
Thermocouple
Figure 36 - Pilot Inlet Air Hole (HLA Shown)
Ignitor
Electrode
Pilot Burner
Pilot Air Inlet Hole
LOGS
• Replace log(s) if broken or chipped (dime-
size or larger).
200068-01A24
Page 25
TROUBLESHOOTING
WARNING: If you smell gas:
• Shut off gas supply.
• Do not try to light any appliance.
• Do not touch any electrical switch; do not use any phone in your
building.
• Immediately call your gas supplier from a neighbor’s phone. Follow the gas supplier’s instructions.
• If you cannot reach your gas supplier, call the re department.
WARNING: Only a qualied service technician should service and
repair heater. Make sure that power is turned off before proceeding.
Turn off and let cool before servicing.
CAUTION: Never use a wire, needle, or similar object to clean
ODS/pilot. This can damage ODS/ pilot unit.
IMPORTANT: Operating heater where impurities in air exist may create odors. Cleaning supplies, paint, paint remover, cigarette smoke, cements and glues, new carpet or textiles, etc.,
create fumes. These fumes may mix with combustion air and create odors.
Note: All troubleshooting items are listed in order of operation.
CHECKING SYSTEM OPERATION
The millivolt system and individual components may be checked with a millivolt meter
having a 0-1000 mV range. Conduct each
check shown in chart below by connecting
meter test leads to terminals as indicated.
Check TestAB
To TestComplete
Connect Meter
Leads to
Terminals
Thermostat
Contacts
Meter Reading
Should Be
System
2 & 31 & 2
ClosedOpen
ClosedOpen
Thermopile
Output
A. Complete Millivolt System Check
(“A” Reading - Thermostat contacts
CLOSED - Control Knob “ON” - Main
burner should come ON)
a. If the reading is more than 100 millivolts
and the automatic valve still does not
come on, replace the control.
b. If the closed circuit reading (“A” reading) is
less than 100 millivolts, determine cause
for low reading, proceed to Section B
below.
1. Check gas pressure to the unit. If gas
pressure is within minimum and maximum
on data plate, then check pilot voltage,
325 millivolts minimum. If the minimum
millivolt reading is not obtainable, replace
pilot.
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25200068-01A
Page 26
TROUBLESHOOTING
ProblemPossible CauseCorrective Action
When ignitor button is
pressed in, there is no
spark at ODS/pilot.
When ignitor button is
pressed in there is a
spark at ODS/pilot but
no ignition.
ODS/pilot lights but ame
goes out when control
knob is released.
1. Ignitor electrode is positioned wrong. Ignitor electrode is broken.
2. Ignitor electrode is not connected to ignitor cable.
3. Ignitor cable is pinched or
wet.
4 Broken ignitor cable.
5. Bad piezo ignitor.
6. Piezo ignitor nut is loose.
1. Gas supply is turned off or
equipment shutoff valve is
closed.
2. Control knob not fully
pressed in while pressing
ignitor button.
3. Air in gas lines (new installation or recent gas interruption).
4. ODS / pilot is clogged.
5. Control knob not in PILOT
position.
6. Depleted gas supply (propane).
1. Control knob is not fully
pressed in.
2. Control knob is not pressed
in long enough.
3. Equipment shutoff valve is
not fully open.
4. Thermocouple connection is
loose at control valve.
5. Pilot flame not touching
thermocouple, which allows
thermocouple to cool, causing pilot ame to go out. This
problem could be caused by
one or both of the following:
A) Low gas pressure
B) Dirty or partially clogged
ODS/pilot
6. Thermocouple damaged.
7. Control valve damaged.
1. Replace electrode.
2. Replace ignitor cable.
3. Free ignitor cable if pinched
by any metal or tubing. Keep
ignitor cable dry.
4. Replace ignitor cable.
5. Replace piezo ignitor.
6. Tighten nut holding piezo
ignitor to base panel of log
set. Nut is located behind
base panel.
1. Turn on gas supply or open
equipment shutoff valve.
2. Fully press in control knob
while pressing ignitor button.
3. Continue holding down control knob. Repeat igniting operation until air is removed.
4.
Clean ODS/pilot (see Care
and Maintenance, page 24) or
replace ODS/pilot assembly.
5. Turn control knob to PILOT
position.
6. Contact local propane/LP
gas company.
1. Press in control knob fully.
2. After ODS/pilot lights, keep
control knob pressed in 30
seconds.
3. Fully open equipment shutoff
valve.
4. Hand tighten until snug, and
then tighten 1/4 turn more.
5. A) Contact local natural or
propane/LP gas company
B) Clean ODS/pilot (see
Care and Maintenance,
page 24) or replace ODS/
pilot assembly
6. Replace thermocouple.
7. Replace control valve.
www.usaprocom.com
200068-01A26
Page 27
TROUBLESHOOTING
ProblemPossible CauseCorrective Action
Burner does not light after
ODS/pilot is lit.
Delayed ignition of
burner.
Burner backring during
combustion.
Yellow ame during burner combustion.
Gas odor during combustion.
Slight smoke or odor
during initial operation.
Heater produces a whistling noise when burner
is lit.
1. Burner orice is clogged.
2. Burner orice diameter is too
small.
3. Inlet gas pressure is too low.
1. Manifold pressure is too low.
2. Burner orice is clogged.
1. Burner orice is clogged or
damaged.
2. Burner is damaged.
3. Gas regulator is damaged.
1. Not enough air.
2. Gas regulator is defective.
3. Inlet gas pressure is too low.
1. Foreign matter between
control valve and burner.
2. Gas leak. (See Warning Statement at top of page 25).
1. Residues from manufacturing process.
1. Turning control knob to high
position when burner is cold.
2. Air in gas line.
3. Air passageways on heater
are blocked.
4. Dirty or partially clogged
burner orice.
1. Clean burner orifice (see
Care and Maintenance,
page 24) or replace burner
orice.
2. Replace burner orice.
3. Contact local gas supplier.
1. Contact local gas supplier.
2. Clean burner (see Care and Maintenance, page 24) or
replace burner orice.
1. Clean burner orifice (see
Care and Maintenance,
page 24) or replace burner
orice.
2. Replace burner.
3. Replace gas regulator.
1. Check burner for dirt and
debris. If found, clean burner
(see Care and Maintenance,
page 24).
2. Replace gas regulator.
3. Contact local gas supplier.
1. Contact a qualied service
technician to remove foreign
matter.
2. Locate and correct all leaks
(see Checking Gas Connec-tions, page 15).
1. Problem will stop after a few
hours of operation.
1. Turn control knob to low
position and let warm up for
a minute.
2. Operate burner until air is
removed from line. Have gas
line checked by local gas
supplier.
3 Observe minimum installa-
tion clearances (Figure 4,
page 9).
4 Clean burner (see Care and
Maintenance, page 24) or
replace burner orice.
www.usaprocom.com
27200068-01A
Page 28
TROUBLESHOOTING
ProblemPossible CauseCorrective Action
Heater produces a clicking/ticking noise just after
burner is lit or shut off.
White powder residue
forming within burner
box or on adjacent walls
or furniture.
Heater produces unwanted odors.
Heater shuts off in use
(ODS operates).
Gas odor exists even
when control knob is in
OFF position.
Moisture/condensation
noticed on windows.
Log set cycles to pilot,
but room temperature
drops to a lower than
ideal level before log set
comes back on.
1. Metal is expanding while
heating or contracting while
cooling.
1. When heated, the vapors
from furniture polish, wax,
carpet cleaners, etc., turn
into white powder residue.
1. Heater is burning vapors from
paint, hair spray, glues, etc.
See IMPORTANT statement,
page 25.
2. Gas leak. See Warning State-ment at the top of page 25.
3 Low fuel supply.
1. Not enough fresh air is available.
2. Low line pressure.
3. ODS/pilot is partially
clogged.
1. Gas leak. See Warning Statement at top of page 25.
2. Control valve is defective.
1. Not enough combustion/
ventilation air.
1. Thermostat sensing bulb
needs to be repositioned.
1. This is common with most
heaters. If noise is excessive, contact qualied service technician.
1. Turn heater off when using
furniture polish, wax, carpet
cleaner or similar products.
1. Open a window to ventilate
room. Stop using odor causing products while heater is
running.
2. Locate and correct all leaks
(see Checking Gas Connec-tions, page 15).
3. Rell supply tank (Propane/
LP models).
1. Open window and/or door for
ventilation.
2. Contact local gas supplier.
3. Clean ODS/pilot (see Care and Maintenance, page 24).
1. Locate and correct all leaks
(see Checking Gas Connec-tions, page 15).
2. Contact customer service.
1. Refer to Air for Combus-tion and Ventilation requirements, page 6.
1. Reposition thermostat sensing bulb (see pages 16 and
17.
www.usaprocom.com
200068-01A28
Page 29
REPLACEMENT PARTS
Note: Use only original replacement parts. This will protect your warranty coverage for parts
replaced under warranty.
PARTS UNDER WARRANTY
Contact authorized dealers of this product.
If they can’t supply original replacement
parts, call Customer Service toll free at
1-866-573-6074 for referral information.
When calling Customer Service or your
dealer, have ready:
• Your name
• Your address
• Model and serial number of your heater
• How heater was malfunctioning
• Type of gas used (Propane/LP or Natural
gas/NG)
• Purchase date
Usually, we will ask you to return the defective
part to the factory
PARTS NOT UNDER WARRANTY
Contact authorized dealers of this product.
If they can’t supply original replacement
part(s) call Customer Service toll free at
1-866-573-6074 for referral information.
When calling Customer Service have ready:
• Model number of your heater
• The replacement part number
TECHNICAL SERVICES
You may have further questions about installation, operation, or troubleshooting. If so, contact
ProCom Heating, Inc. at 1-866-573-0674.
When calling, please have your model and serial numbers of your heater ready.
ACCESSORIES
Purchase heater accessories and parts from your nearest dealer or service center. If they can
not supply an accessory or part, call ProCom Heating, Inc. at 1-866-573-0674.
EQUIPMENT SHUTOFF VALVE
For all models. Equipment shutoff valve with
1/8" NPT tap. Fits 1/2" NPT pipe.
www.usaprocom.com
29200068-01A
Page 30
PARTS
21
11
12
MODELS WZ(N,L)18MVA, WZ(N,L)24MVA, WZ(N,L)30MVA
20
16
17
18
3
24" Log Set Shown
19
2
13
14
15
8
7
1
9
5
4
6
10
www.usaprocom.com
200068-01A30
Page 31
PARTS
MODELS WZ(N,L)18MVA, WZ(N,L)24MVA, WZ(N,L)30MVA
This list contains replaceable parts used in your heater. When ordering parts, follow the instructions listed under Replacement Parts on page 29 of this manual.
This list contains replaceable parts used in your heater. When ordering parts, follow the instructions listed under Replacement Parts on page 29 of this manual.
IMPORTANT: We urge you to register your product within 10 days of date of installation, complete
with entire serial number which can be found on the rating plate. Please ll out the warranty information above for your personal records. Retain this manual for future reference.
Always specify model and serial numbers when communicating with customer service.
We reserve the right to amend these specications at any time without notice. The only warranty applicable
is our standard written warranty. We make no other warranty, expressed or implied.
LIMITED WARRANTY
ProCom Heating, Inc. warrants this product to be free from defects in materials and components for ONE
(1) year from the date of rst purchase, provided that the product has been properly installed by a qualied
installer in accordance with all local codes and instructions furnished with the unit, operated and maintained in accordance with all applicable instructions. To make a claim under this warranty, the Bill of Sale
or canceled check must be presented.
RESPONSIBILITY OF OWNER
This warranty is extended only to the original retail purchaser. This warranty covers the cost of part(s)
required to restore this heater to proper operating condition. Warranty part(s) MUST be obtained through
ProCom Heating, Inc. who will provide original factory replacement parts. Failure to use original factory
replacement parts voids this warranty.
IMPORTANT: The heater MUST be installed by a qualied installer in accordance with all local codes
and instructions furnished with the unit or the warranty is voided.
WHAT IS NOT COVERED
This warranty does not apply to parts that are not in original condition because of normal wear and tear or
parts that fail or become damaged as a result of misuse, accidents, lack of proper maintenance or defects
caused by improper installation. Travel, diagnostic cost, labor, transportation and any and all such other
costs related to repairing a defective heater will be the responsibility of the owner.
TO THE FULL EXTENT ALLOWED BY THE LAW OF THE JURISDICTION THAT GOVERNS THE SALE
OF THE PRODUCT, THIS EXPRESS WARRANTY EXCLUDES ANY AND ALL OTHER EXPRESSED
WARRANTIES AND LIMITS THE DURATION OF ANY AND ALL IMPLIED WARRANTIES. INCLUDING
WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE TO ONE (1)
YEARS ON ALL COMPONENTS FROM THE DATE OF FIRST PURCHASE. PROCOM HEATING, INC.'S
LIABILITY IS HEREBY LIMITED TO THE PURCHASE PRICE OF THE PRODUCT AND PROCOM HEATING, INC. SHALL NOT BE LIABLE FOR ANY OTHER DAMAGES WHATSOEVER INCLUDING INDIRECT,
INCIDENTAL OR CONSEQUENTIAL DAMAGES.
Some states do not allow a limitation on how long an implied warranty lasts or an exclusion or limitation of
accidental or consequential damages, the above limitation on implied warranties, or exclusion or limitation
on damages may not apply to you.
This warranty gives you specic legal right, and you may also have other rights that vary from state to state.
ProCom Heating, Inc.
Bowling Green, KY 42101
www.usaprocom.com
1-866-573-0674
200068-01
Rev. A
06/16
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