FMI MM2FR, MM2FRL, MM3FR, MMFRBNS, MMFRBPB Owner's Operation And Installation Manual
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OWNER’S OPERATION AND
INSTALLATION MANUAL
FIRE RING MODELS
MM2FR, MM2FRL, MM3FR AND MM3FRL
NATURAL GAS BURNER MODELS:
MMFRBNB AND MMFRBNS
PROPANE/LP GAS BURNER
MODELS:
MMFRBPB AND MMFRBPS
DANGER
WARNING: Improper installation, adjust-
ment, alteration, service or maintenance
can cause injury or property damage. Read
the installation, operating and maintenance
instructions thoroughly before installing or
servicing this equipment.
WARNING: For Outdoor Use Only.
CARBON MONOXIDE
WARNING
• This appliance can produce carbon monoxide
which has no odor.
• Using it in an enclosed
space can kill you.
• Never use this appliance
in an enclosed space
such as a camper, tent, car
or home.
For more information, visit www.fmiproducts.com
DANGER
IF YOU SMELL GAS:
1. Shut off gas to appliance.
2. Extinguish any open ame.
3. If odor continues, keep away from the
appliance and immediately call your gas
supplier or re department.
WARNING: Do not store gasoline or other
ammable vapors and liquids in the vicinity
of this or any other appliance.
An LP-cylinder not connected for use shall not
be stored in the vicinity of this or any other
appliance.
INSTALLER: Leave this manual with the
appliance.
CONSUMER: Retain this manual for future
reference.
TABLE OF CONTENTS
Safety ..................................................................2
Local Codes.........................................................3
Unpacking............................................................3
Specication ........................................................4
Installation ...........................................................5
Operation ........................................................... 12
Inspecting Burners.............................................13
SAFETY
Solid fuels shall not be burned in this
appliance
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.
WARNING: This product contains and/or
generates chemicals known to the state of
California to cause cancer or birth defects or
other reproductive harm.
IMPORTANT: Read this owner’s manual carefully and completely before trying to assemble,
operate or service this replace. Improper use
of this replace can cause serious injury or
death from burns, re, explosion, electrical
shock and carbon monoxide poisoning.
Cleaning and Maintenance ................................ 14
Troubleshooting ................................................. 15
Parts ..................................................................18
Service Hints .....................................................21
Technical Service...............................................21
Replacement Parts ............................................ 21
Warranty ............................................. Back Cover
Natural and Propane/LP
gases are odorless. An
odor-making agent is added to these gases. 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.
Make certain you read and understand all warnings.
Keep this manual for reference. It is your guide to
safe and proper operation of this replace.
WARNING: Any change to this appliance
or its controls can be dangerous.
Due to high temperatures, the appliance should
be located out of trafc and away from furniture
and draperies.
Do not place clothing or other ammable material on or near the appliance. Never place any
objects on the appliance.
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 replace may not be working properly.
Get fresh air at once! Have replace 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.
Appliance base assembly becomes very hot
when running appliance. Keep children and
adults away from hot surface to avoid burns
or clothing ignition. Appliance will remain hot
for a time after shutdown. Allow surface to cool
before touching.
Carefully supervise young children when they
are in the vicinity of the appliance.
Keep the appliance area clear and free from
combustible materials, gasoline and other
ammable vapors and liquids.
Do not leave appliance in operation when
unattended.
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125883-01C
SAFETY
Continued
1. 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.
2. Do not place propane/LP supply tank(s) inside
or under the re ring. Locate propane/LP supply
tank(s) at least 10 feet away (propane/LP units
only).
3. 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 neigh-
bor’s phone. Follow the gas supplier’s instructions
• if you cannot reach your gas supplier, call the
re department
4. To prevent the creation of soot, follow the instructions in Cleaning and Maintenance, page 14.
5. Do not run appliance
• where ammable liquids or vapors are used or
stored
• under dusty conditions
6. Do not use this appliance to cook food or burn
paper or other objects.
7. Do not use this appliance if any part has been
exposed to or under water. Immediately call a
qualied service technician to inspect the room
appliance and to replace any part of the control
system and any gas control which has been under water.
8. Turn appliance off and let cool before servicing,
installing or repairing. Only a qualied service
person should install, service or repair appliance.
9. This appliances must not be connected to any
external electrical source.
10.Operating appliance above elevations of 4,500
feet may cause pilot outage.
17.To prevent performance problems, do not use
propane/LP fuel tank of less than 100 lb. capacity
(propane/LP units only).
18.Provide adequate clearances around air openings.
LOCAL CODES
Install and use appliance 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.
1430 Broadway
New York, NY 10018
National Fire Protection Association, Inc.
Batterymarch Park
Quincy, MA 02269
UNPACKING
1. Remove burner system and other components
from box. Do not grasp by burner tubes. If it is
evident that the burner is damaged, it must be
replaced prior to being put into operation. Set
lava rock boxes aside for further instruction.
2. Remove all protective packaging from pallet of
blocks for shipment.
3. Check for any shipping damage. If appliance
is damaged call FMI PRODUCTS, LLC at
1-866-328-4537 for replacement parts before
returning to dealer.
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SPECIFICATIONS
50.625”
29.125”
MM2FR: 17.125”
MM3FR: 24.250”
47.875”
Figure 1 - MODELS MM2FR, MM2FRL, MM3FR AND MM3FRL
MMFRBNB, MMFRBNS
• Rating: 96,000 Btu/hr
• Gas Type: Natural Gas Only
• Ignition: Manual
• Manifold Pressure: 6.0" w.c.
• Minimum Inlet Supply Pressure: 7.0" w.c.
• Maximum Inlet Supply Pressure: 10.5" w.c.
• Orice: #12
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MMFRBPB, MMFRBPS
• Rating: 95,000 Btu/hr
• Gas Type: Propane/LP Gas Only
• Ignition: Manual
• Manifold Pressure: 10.5" w.c.
• Minimum Inlet Supply Pressure: 11" w.c.
• Maximum Inlet Supply Pressure: 14" w.c.
• Orice: #33
125883-01C
INSTALLATION
WARNING: A qualied service person must
install appliance. Follow all local codes.
NOTICE: State or local codes may only allow
operation of this appliance in a vented con-
guration. Check your state or local codes.
CHECK GAS TYPE
Use the correct type of gas (natural or propane/LP).
If your gas supply is not the correct gas type, do
not install appliance. Call dealer where you bought
appliance for proper type appliance.
WARNING: This appliance is equipped for
either natural gas or propane/LP gas but not
both. Gas type is indicated on the rating plate.
Field conversion is not permitted.
INSTALLATION AND CLEARANCES
WARNING: Maintain the minimum
clearances. If you can, provide greater
clearances from oor and adjoining wall.
MINIMUM CLEARANCE TO
COMBUSTIBLE MATERIALS
Side Wall 16",
Bottom: 0"
WARNING: DO NOT PLACE UNDER A
CEILING OR OVERHANG.
CONNECTING TO GAS SUPPLY
WARNING: This appliance requires a 1/2"
NPT (National Pipe Thread) inlet connection
to the pressure regulator.
WARNING: A qualied service person must
connect appliance to gas supply. Follow all
local codes.
CAUTION: Never connect propane/LP re
ring directly to the propane/LP supply. This
appliance requires an external regulator (not
supplied). Install the external regulator between the appliance and propane/LP supply.
WARNING: Never connect natural gas re
ring to private (non-utility) gas wells. This
gas is commonly known as wellhead gas.
Installation Items Needed
Before installing appliance, make sure you have
the items listed below.
• external regulator (supplied by installer)
• piping (check local codes)
• sealant (resistant to propane/LP gas)
• equipment shutoff valve *
• test gauge connection *
• sediment trap
• tee joint
• pipe wrench
• approved exible gas line with gas connector (if
allowed by local codes) (not provided)
* An equipment shutoff valve with 1/8" NPT tap is
an acceptable alternative to test gauge connection.
Purchase the optional equipment shutoff valve from
your dealer.
For propane/LP units, the installer must supply an
external regulator. The external regulator will reduce
incoming gas pressure. You must reduce incoming
gas pressure to between 11" and 14" of water. If
you do not reduce incoming gas pressure, appliance regulator damage could occur. Install external
regulator with the vent pointing down as shown in
Figure 2, page 6. Pointing the vent down protects
it from freezing rain or sleet.
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INSTALLATION
Continued
Propane/LP
Supply Tank
External
Regulator
with Vent
Pointing
Down
Figure 2 - External Regulator With Vent
Pointing Down
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 appliance. If pipe is too small, undue loss of volume
will occur.
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 appliance (see Figure 3).
IMPORTANT: Install equipment shutoff valve in an
accessible location. The equipment shutoff valve is
for turning on or shutting off the gas to the appliance.
Check your building codes for any special requirements for locating equipment shutoff valve to re-
places.
Apply pipe joint sealant lightly to male NPT threads.
This will prevent excess sealant from going into
pipe. Excess sealant in pipe could result in clogged
appliance valves.
Equipment
Shutoff Valve
With 1/8" NPT
Tap*
PROPANE/LP
From External
Approved Flexible
Gas Hose (no
longer than 36" if
required by local
codes)
3"
Minimum
Tee Pipe Cap
Joint Nipple
Sediment
Trap
Regulator
(11" W.C.**
to 14" W.C.
Pressure)
NATURAL
From Gas
Meter
(7" W.C.**
to 10.5"
W.C.
Pressure)
Figure 3 - Gas Connection
* Purchase the optional equipment shutoff valve
from your dealer.
**Minimum inlet pressure for purpose of input ad-
justment.
We recommend that you install a sediment trap in
supply line as shown in Figure 3. Locate sediment
trap where it is within reach for cleaning. Install in
piping system between fuel supply and appliance.
Locate sediment trap where trapped matter is not
likely to freeze. A sediment trap traps moisture and
contaminants. This keeps them from going into appliance controls. If sediment trap is not installed or
is installed wrong, appliance may not run properly.
CAUTION: Avoid damage to gas control.
Hold gas control with wrench when connect-
ing it to gas piping and/or ttings.
WARNING: Use pipe joint sealant that is
resistant to liquid petroleum (LP) gas.
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125883-01C
INSTALLATION
Continued
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. Bubbles forming
show a leak. Correct all leaks at once.
CAUTION: Make sure external regulator has
been installed between propane/LP supply and
appliance. See guidelines under Connecting
to Gas Supply, page 6.
PRESSURE TESTING GAS SUPPLY PIPING
SYSTEM
Test Pressures In Excess Of 1/2 PSIG (3.5
kPa)
1. Disconnect appliance with its appliance main gas
valve (control valve) and equipment shutoff valve
from gas supply piping system. Pressures in excess of 1/2 psig will damage appliance regulator.
2. Cap off open end of gas pipe where equipment
shutoff valve was connected.
3. Pressurize supply piping system by either 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.
4. Check all joints of gas supply piping system. Ap-
ply noncorrosive leak detection uid to all joints.
Bubbles forming show a leak.
5. Correct all leaks at once.
6. Reconnect appliance and equipment shutoff
valve to gas supply. Check reconnected ttings
for leaks.
Test Pressures Equal To or Less Than 1/2 PSIG
(3.5 kPa)
1. Close equipment shutoff valve (see Figure 4).
2. Pressurize supply piping system by either 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.
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. Apply noncorrosive leak detection uid to all
joints. Bubbles forming show a leak.
4. Correct all leaks at once.
PRESSURE TESTING APPLIANCE GAS
CONNECTIONS
1.
Open equipment shutoff valve (see Figure 4).
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 appliance is in the
OFF position.
4. Check all joints from gas meter to equipment
shutoff valve for natural gas or propane/LP supply
to equipment shutoff valve for propane/LP. Apply noncorrosive leak detection uid to all joints.
Bubbles forming show a leak.
5. Correct all leaks at once.
6. Light appliance (see Operation, page 15). Check
all other internal joints for leaks.
7.
Turn off appliance (see To Turn Off Gas to Appli-
ance, page 15).
Open
Equipment
Shutoff
Valve
Closed
Figure 4 - Equipment Shutoff Valve
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INSTALLATION
Continued
GAS LINE PLANNING
The supply line will need to run vertical through the
heat shield in the center of the re ring up to where
you will connect it to the gas regulator using a 1/2"
ared ex line (not included). There is a 1" hole in
the heat shield for the gas line (See Figure 5).
1" Hole
1/2" Flare
Connector
1. Locate a at even surface to build your re
ring. See Specications page 4 for sizing and
Minimum Clearances page 5 when selecting a
location.
2. Use 8 blocks to build the rst layer (See Figure
6). After laying out all blocks, using a level, verify
all the blocks are level. Shim if necessary.
FOR PROPANE/LP ONLY: On the rst layer,
leave 1/8" head joints between blocks (see
Figure 7). Do not grout between blocks. This
will allow air space for gas to dissipate and
not pool in the event of a gas leak.
Heat
Shield
Figure 5 - Gas Line Planning
BUILDING FIRE RING
WARNING: Failure to position the parts in
accordance with these diagrams or failure to
use only parts specically approved with this
appliance may result in property damage or
personal injury.
Figure 6 - Laying First Layer of Blocks
1/8” Head Joint
Figure 7 - Head Joints
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125883-01C
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