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www.fmiproducts.com

125598-01B

2

SAFETy

 DANGER: Carbon monoxide poisoning may 

lead to death!

Carbon Monoxide Poisoning: 

Early signs of carbon mon-

oxide poisoning resemble the flu, with headaches, dizziness 

or nausea. If you have these signs, the fireplace may not be 

working properly. 

Get fresh air at once!

 Have fireplace ser

-

viced. 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 influence 

of alcohol and those at high altitudes.
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 fireplace.

 

WARNING: Any change to this appliance 

or its controls can be dangerous.

Solid fuels shall not be burned in a fireplace 

where a decorative appliance is installed. 

Due to high temperatures, the appliance should 

be located out of traffic and away from furniture 

and draperies.

Do not place clothing or other flammable mate-

rial on or near the appliance. Never place any 

objects on the appliance.

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  room  with  appliance.  When  using 

the hand-held remote accessory, keep selector 

switch in the OFF position to prevent children 

from turning on burners with remote.

 

WARNING:  Improper  installation,  adjust-

ment, alteration, service or maintenance can 
cause injury or property damage. Refer to this 
manual for correct installation and operation-
al  procedures.  For  assistance  or  additional 
information consult a qualified installer, ser-
vice agency or the gas supplier.

  

WARNING: This appliance is for installation 

only in a solid-fuel burning masonry or UL127 
factory-built fireplace or in a listed unvented 
vent free outdoor fireplace. Do not install this 
appliance in an unvented fireplace indoors.

 

WARNING:  Fireplace  must  be  operated 

only with doors fully open.

This appliance may be installed in an after-

market,* permanently located, manufactured 

(mobile) home, where not prohibited by local 

codes.
This appliance is only for use with the type 

of gas indicated on the rating plate. This ap-

pliance is not convertible for use with other 

gases. 

* Aftermarket: Completion of sale, not for purpose of resale, from the 

manufacturer

 

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 care-
fully and completely before trying to assemble, 
operate or service this fireplace. Improper use 
of this fireplace can cause serious injury or 
death  from  burns,  fire,  explosion,  electrical 
shock and carbon monoxide poisoning.

TABLE OF CONTENTS

Safety ..................................................................................

2

Product Identification ...........................................................

3

Local Codes.........................................................................

4

Optional Remote Control Accessories  ................................

4

Unpacking............................................................................

4

Product Features .................................................................

4

Installation ...........................................................................

4

Operation

 ...........................................................................

15

Inspecting Burners.............................................................

16

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

16

Specifications ....................................................................

18

Wiring Diagram

 ..................................................................

18

Troubleshooting .................................................................

19

Accessories .......................................................................

23

Parts ..................................................................................

24

Service Hints .....................................................................

27

Technical Service...............................................................

27

Replacement Parts ............................................................

27

Warranty

 ............................................................. Back Cover

Summary of Contents for MF42ONR

Page 1: ... the fire department Installation and service must be performed by a qualified installer service agency or the gas supplier INSTALLER Leave this manual with the appliance CONSUMER Retain this manual for future reference WARNING Improper installation adjustment alteration service or maintenance can cause injury or property damage Read the installation operating and maintenance instruc tions thoroug...

Page 2: ... selector switch in the OFF position to prevent children from turning on burners with remote WARNING Improper installation adjust ment alteration service or maintenance can cause injury or property damage Refer to this manual for correct installation and operation al procedures For assistance or additional information consult a qualified installer ser vice agency or the gas supplier WARNING Thisap...

Page 3: ...6 8 Before using furniture polish wax carpet cleaner or similar products turn appliance off If heated the vapors from these products may create a white powder residue within burner box or on adjacent walls and furniture 9 Do not use this appliance as a wood burning appliance Use only the logs provided with the appliance Do not burn solid fuels in this appliance 10 Do not run appliance where flamma...

Page 4: ... an electronic ignitor to light appliance fuel supply Installation WARNING Aqualified service person must install appliance Follow all local codes NOTICE State or local codes may only allow operationofthisapplianceinaventedconfigu ration Check your state or local codes WARNING Makesuretheselectorswitchisin the OFF position before installing appliance WARNING Never install the appliance in a recrea...

Page 5: ...ssory 24 and 30 Models Only See Figure 3 for minimum clearances If Using Mantel You must have noncombustible material s above the fireplace 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 Noncombus tible material must extend at least 8 up for all models If noncombustible material is less than...

Page 6: ...re 4 Minimum Mantel Clearances Without Using Hood 14 Min Combustible Material Noncombustible Material Figure 6 Minimum Fireplace Clearances If Installed at Floor Level Figure 5 Minimum Mantel Clearances When Using Hood Minimum Non Combustible Material Minimum Non Combustible Material Height Distances to Underside of Mantel Top of Fireplace Opening Underside of Mantel Shelf 12 A 18 20 22 24 All min...

Page 7: ...e special care is needed You must raise the fire place floor to allow access to appliance control panel This will insure adequate air flow and guard against sooting and controls being dam aged Raisefireplacefloorwithnoncombustible material Make sure material is secure Installation Items Needed hardware package provided with appliance approved flexible gas hose and fittings provided if allowed by l...

Page 8: ...s This will prevent excess sealant from going into pipe Excess sealant in pipe could result in clogged appliance valves WARNING Use pipe joint sealant that is resistant to liquid petroleum LP gas Figure 11 External Regulator With Vent Pointing Down Propane LP Supply Tank External Regulator with Vent Pointing Down Installation Continued Figure 10 Attaching Base to Fireplace Floor Model Shown May Va...

Page 9: ...imum inlet pressure for purpose of input adjustment Figure 12 Gas Connection Pipe Cap Tee Nipple Joint Gas Control 3 Minimum Sediment Trap Equipment Shutoff Valve With 1 8 NPT Tap Approved Flexible Gas Hose if allowed by local codes Propane LP From External Regulator 11 W C to 14 W C Pressure Natural From Gas Meter 5 W C to 10 5 W C Pressure 2 Cap off open end of gas pipe where equipment shutoff v...

Page 10: ...hecking Gas Connections page 9 9 If logs were removed from appliance for install remote ac cessory replace logs see Installing Logs and Lava Rock Page 11 10 Place remote receiver on fireplace floor next to control valve Make sure the remote receiver and wires are not on or touching either gas burner on the log set Installing Batteries for Remote Receiver and Hand Held Remote Control Follow instruc...

Page 11: ...It is very important to install these logs exactly as instructed Do not modify logs Only use logs supplied with appliance or as identified for use with the appliance as shown in Figure 18 Note Each log includes an identifying number cast in the log Look at each log when placing them on the burner system to be certain it is correct Note For additional information go to www fmiproducts com and click...

Page 12: ... against the vertical portion of the burner tube Place this log on the base assembly by inserting it from the left side as shown in Figure 20 You will need to twist the log slightly to get it to fit against the burners properly It will rest even with the back edge of the pan Back Left Log D 018 or D026 Flat Part of Log Log Notch Burner Tube Burner Tube Log Notch Vertical Portion of Burner Tube Fin...

Page 13: ...Figures 23 and 23A The split side of the log faces forward The log has a notch that fits around the burner tube on the right side The left side of the burner tube fits into the notch on the back side of this log The log is placed properly when it sits parallel to the tube burner and the square peg is pointing up See figures for reference Charred Log Log Notch Right Front Log Figure 22 Installing C...

Page 14: ...of this log rests behind the knot on the top of the front right log Find the back top log LMF SC D 023 or LMF48 SC 8 D029 See Figures 26 and 26A The left end of this log has a round hole that fits over the round peg that is on the top of the back left log The right end of this log has a rectangular hole that fits over the rectangular peg on the top of the right crossover log Place lava rock around...

Page 15: ... don t smell gas go on the next step 6 Press in and turn control knob counterclockwise to the PILOT position Press in control knob for five 5 seconds see Figure 27 7 With control knob pressed in press and release ignitor button This will light pilot If needed keep pressing ignitor button until pilot lights Note If pilot does not stay lit contact a qualified service person or gas supplier for repai...

Page 16: ...eas burnersandcirculatingairpassagewaysofap plianceclean Inspecttheseareasofappliance before each use Have appliance inspected yearly by a qualified service person WARNING Failure to keep the primary air opening s of the burner s clean may result in sooting and property damage Burner Injector Holder and Pilot Air Inlet Hole The primary air inlet holes allow the proper amount of air to mix with the...

Page 17: ...jector Holder Primary Air Inlet Holes Figure 32 Pilot Inlet Air Hole Your pilot may vary from pilot shown Thermocouple Thermopile 1 8 Pilot Burner Piezo Ignitor 3 8 to 1 2 LOGS If you remove logs for cleaning refer to Installing Logs and Lava Rock page 11 to properly replace logs Replace log s if broken or chipped dime sized or larger main burner Periodically inspect all burner flame holes with ap...

Page 18: ... Pressure in of water Max 14 W C Min 11 W C For purpose of input adjustment MF42ONR AND MF48ONR Rating Variable 29 000 40 000 Btu Hr Type Gas Natural Ignition Electronic Manifold Pressure 3 4 W C Inlet Gas Pressure in of water Max 10 5 W C Min 5 W C For purpose of input adjustment To Thermopile To AUTO Terminal on Switch To OFF Terminal on Switch Wiring Diagram REMOTE READY MODELS ...

Page 19: ...stalled 5 Depleted gas supply propane LP only 6 ODS pilot is clogged 7 Gas regulator setting is not cor rect REMEDY 1 Reconnect ignitor cable 2 Free ignitor cable if pinched by any metal or tubing Keep ignitor cable dry 3 Replace ignitor cable 4 Replace ignitor 5 Replace pilot assembly 6 Replace pilot assembly 7 Install new alkaline battery in electronic ignitor Verify battery is installed correct...

Page 20: ...ts keep control knob pressed in 30 seconds 3 Wait one minute for safety in terlock system to reset Repeat ignition operation 4 Fully open equipment shutoff valve 5 A Contact local natural or pro pane LP gas company B Clean ODS pilot see Cleaning and Maintenance page 16 or replace ODS pilot assembly 6 Hand tighten until snug then tighten 1 4 turn more 7 Replace pilot assembly 8 Replace control valv...

Page 21: ...m line Have gas line checked by local natural or pro pane LP gas company 3 Observe minimum installation clearances see pages 9 through 11 4 Clean burner see Cleaning and Maintenance page 16 or replace burner orifice s 1 Turn appliance off when using fur niture polish wax carpet cleaners or similar products 1 Replace 9 volt batteries in re ceiver and hand held remote 1 This is normal with most appl...

Page 22: ...opane LP only 3 Gas leak See Warning state ment at top of page 1 Low line pressure 2 ODS pilot is partially clogged 1 Gas leak See Warning state ment at top of page 2 Control valve or gas control de fective 1 Foreign matter between control valve and burner 2 Gas leak See Warning state ment at top of page REMEDY 1 Open window to ventilate room Stop using odor causing products while appliance is run...

Page 23: ...replace Fits openings 28 to 48 wide RECEIVER AND HAND HELD REMOTE CONTROL KIT MRC REMOTE READY MODELS ONLY For all models Allows the fireplace to be turned on and off by using a hand held remote control WALL MOUNT ON OFF SWITCH GWMS2 REMOTE READY MODELS ONLY For all models Allows the gas log appliance to be turned on and off with a wall switch DAMPER CLAMP GA6080 For all models Permanently opens c...

Page 24: ...www fmiproducts com 125598 01B 24 Parts Remote Ready Control Models MF42oNR MF42oPR MF48oNR MF48oPR 1 2 5 6 8 9 10 13 14 15 16 17 18 19 20 21 23 24 25 22 11 12 12 7 3 4 ...

Page 25: ...13 125603 01 Grate Stainlees MF42 1 125603 02 Grate Stainlees MF48 1 14 111435 01 Ignitor Electric 1 15 125019 01 Bracket Ignitor 1 16 116559 02 Shutter Air NG 1 116559 03 Shutter Air LP 1 17 099056 16 Orifice 0 12 NG 1 099056 31 Orifice 0 07 LP 1 18 124933 01 Orifice Holder 90 Degrees 1 19 111824 01 Nut Sleeve Brass Compression 1 20 111817 01 Tube Flex 3 8 X 15 1 21 120252 01 Nut 10 24 Black Hex ...

Page 26: ...te the set size KEY NO DESCRIPTION QTY Part Number Log ID Number Part Number Log ID Number 1 125573 01 D 019 125591 01 D 027 Log Front Right 1 2 125573 02 D 018 125591 02 D 026 Log Back Left 1 3 125573 03 D 017 125591 03 D 025 Log Front Left 1 4 125573 04 D 020 125573 04 D 020 Log Charred 1 5 125573 05 D 021 125591 04 D 028 Log Middle Split 1 6 125573 06 D 022 125573 06 D 022 Log Right Split Cross...

Page 27: ...chase date Usually we will ask you to return the part to the factory Service Hints When Gas Pressure Is Too Low pilot will not stay lit burners will have delayed ignition appliance will not produce specified heat propane LP gas supply may be low You may feel your gas pressure is too low If so contact your local propane LP or natural gas supplier Technical Service You may have further questions abo...

Page 28: ...r FMI PRODUCTS LLC who will provide original factory replacement parts Failure to use original factory replacement parts voids this warranty Travel handling transportation diagnostic material laborandincidentalcostsassociatedwithwarrantyrepairs unlessexpresslycovered by this warranty are not reimbursable under this warranty and are the responsibility of the owner Excluded from this warranty are pr...

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