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85-03-01205 

ML-SERIES FIREPLACE 

Page 

71

 

5

 

HOMEOWNER  INFORMATION 

Welcome to Mendota.  We are proud to be the makers of world-class direct vent fireplaces and Fireplaces. We understand that 
a fireplace is a long-term investment,  and we are happy you have chosen us to be a part of your family.  We are committed  to 
quality and satisfaction  for all Mendota owners. Thank you for choosing a Mendota to be a source of comf ort and beauty in 
your home. 
We have designed this manual  to help you enjoy all that your Mendota  Fireplace has to offer. You will find tips, operating 
instructions, and frequently asked questions to support the features and functions of your  Fireplace. 
We want you to enjoy your Mendota for years to come. If you have any additional questions regarding operation  of your 
Fireplace, please contact your Mendota local dealer.  

5.1

 

AESTHETIC CONSIDERATIONS 

Burning or static fireplaces are a major aesthetic focus in any room. In addition to offering the most  realistic log details,  
textures, coloration and the most  realistic wood fire options, Mendota also offers a large array of internal firebox lining options 
and external decorative options. Visit 

www.mendotahearth.com

 

and your local Mendota dealer’s show room to view all options

 

available. 

5.2

 

HEATING PERFORMANCE 

Air movement  options for maximizing  heat circulation that can be considered are operating the  Fireplace

’s convection blowers, 

continuous operation of central heating furnace blowers or room ceiling fans.  The heat output of  the fireplace can be reduced 
by reducing flame height using the remote control. Blowers can be turned down or turned off to reduce heat distribution.  
Mendota also offers optional kits to move the heat from the fireplace to a different room or outside. 

5.3

 

IMPORTANT INFORMATION FOR HOMEOWNER 

Before you begin operation of your Gas  Fireplace Heater, read and familiarize  yourself with  information  provided in the 
following chapters of this manual: 

Chapter 3.2.6 Normal  Surface Temperatures 
Chapter 4.1.1 Mendota Fireplace Curing Instructions   
 

 

 

Summary of Contents for ML39- AA-11-04391

Page 1: ...et appareil ou de tout autre appareil QUE FAIRE SI VOUS SENTEZ UNE ODEUR DE GAZ Ne pas tenter d allumer d appareil Ne touchez aucun interrupteur Ne pas vous servir des t l phones se trouvant dans le b...

Page 2: ...85 03 01205 ML SERIES FIREPLACE HOMEOWNER NOTES...

Page 3: ...has been completed all smoking will have stopped Some slight odors may remain With subsequent use of this Fireplace odors will slowly dissipate and disappear ODOR RISKS If this appliance is not operat...

Page 4: ...ING GUIDES 30 3 2 3 GRACE FRONT GUIDE OPTIONS 30 3 2 3 1 Flush Mount Installing The FrontOn Top OfFinishing Materials With TheScreen Recessed 30 3 2 3 2 Recessed Mount Installing FrontRecessed Into Wa...

Page 5: ...OT DEFINED 5 7 1 Setting to IPI or CPI mode Error Bookmark not defined 5 8 FIRST TIME LIGHTING INSTRUCTIONS 76 5 8 1 Safety Information 76 5 9 OPERATING INSTRUCTIONS 77 5 10 TO TURN OFF GAS TO FIREPLA...

Page 6: ...ode authorities for details on installation requirements The Mendota Fireplace must be vented to the outside in accordance with the latest edition of the National Fuel Gas Code In the absence of local...

Page 7: ...dota gas fireplacesare heat producing appliances Do not burn wood paper or other materials in this fireplace This fireplace is designed as a supplemental heat source It is advisable to have an alterna...

Page 8: ...clear of all obstacles and materials for servicing and proper operation Use only Mendota approved Screens Fronts and Trim Kits Due to high temperature the fireplace should be located out of traffic ar...

Page 9: ...eplace heater is not for use with air filters Foyer au gaz vacuation Ne pas utiliser avec du combustible solide Keep burner and control compartment clean See installation and operating instructions ac...

Page 10: ...State Building Code 3 A metal or plastic identification plate shall be permanently mounted to the exterior of the building at a minimum height of eight 8 feet above grade directly in line with the ex...

Page 11: ...openings in the fireplace Always use Mendota decorative fronts and Mendota approved vent systems and vent caps only 3 1 1 Mendota Fireplace Curing Instructions ATTENTION It is important that the blow...

Page 12: ...re are variables that can extend or shorten the curing time such as decorative fronts doors facing materials and their application Finish materials around the fireplace are subject to high temperature...

Page 13: ...ting a location for your appliance it is important to consider the required clearances to walls ML39 ML47 ML54 ML60 ML72 A MINIMUMFRAMING DEPTH 19 1 2 B FINISHEDFRAMING WIDTH 48 54 61 67 78 C MIN ENCL...

Page 14: ...S FIREPLACE Page 14 3 2 3 Listing Labels The listing label is located under the firebox Remove the right side access grill and locate the listing plate It is chained to the shut off valve handle Figur...

Page 15: ...his appliance body as required per code to inform you of important facts You can find these labels on the outer surface of this appliance Make certain you heed all the warning and caution statements d...

Page 16: ...85 03 01205 ML SERIES FIREPLACE Page 16 Figure 3 10 Figure 3 9...

Page 17: ...APPROVED FOR USE WITH MENDOTA POWER VET KITS AA 11 04071 AA 11 04072 and AA 11 04100 All UL Listed Coaxial Rigid 5 X8 Vent pipe components and vent caps are approved for use Do not mix components of...

Page 18: ...h If all required clearances to combustibles are met and the required finishing materials are used this appliance will perform safely Note that the exposed surfaces immediately surroundingthe Fireplac...

Page 19: ...ING 60 62 64 1 4 64 1 4 54 F MIN UNITBASETO 8 MANTEL 45 47 49 49 51 G UNITBASE TO VENTCENTERLINE 53 55 57 1 4 57 1 4 47 1 8 H MIN FRAMING HEIGHT 40 42 44 1 2 44 1 2 46 1 2 Figure 3 12 Overall Fireplac...

Page 20: ...E UNITBASE TO INNERGUIDE 9 1 2 9 1 2 9 3 8 9 3 8 9 1 2 F UNITSIDE TO CENTER OF VENT 23 3 8 26 3 8 30 33 38 1 2 BOTTOM OFUNITTO VENTSTARTER COLLAR 30 3 4 32 3 4 35 35 37 Figure 3 13 FIREPLACE DIMENSIO...

Page 21: ...ch as lifting the fireplace onto a transport cart or shifting the fireplace during installation Do not attempt to carry this fireplace by the lifting handles only Note Team lifting is recommended To u...

Page 22: ...in a cavity deeper than 19 1 2 all framing and finishing materials protruding past the front face of this fireplace must be of the NON COMBUSTIBLE variety MINIMUM REQUIRED FRAMING DIMENSIONS INCHES MO...

Page 23: ...e and cantilever floor of the chase should be insulated Vapor and air infiltration barriersshould be installed in the chase as per regional codes for the rest of the home Additionally in regions where...

Page 24: ...85 03 01205 ML SERIES FIREPLACE Page 24 3 2 11 Clearance from Appliance Side Walls Figure 3 17 CLEARANCE TO BODY...

Page 25: ...providesat least a 1 active airspace on the combustible wall surface To provide for active airflow install at least 1 metal or ceramic standoffs or spacers between the metal shield and the combustible...

Page 26: ...y result in a fire causing property damage personalinjury or loss of life NOTE For mantels that protrude more than 8 inches from thefront surfaceof thefireplace use a rise and run of 1 1 to calculate...

Page 27: ...sclaims any and all liability for any damage to finishing materials including warping discoloring cracking peelingor flaking This also includes any off gassing or unpleasant smells from materials when...

Page 28: ...se of ceramic or porcelain tiles as facing materials around a Mendota fireplace is approved If selecting a mosaic tile where tiles are held together with a webbing ensure the webbing is a non combusti...

Page 29: ...to emission of chemicals with unwanted smells 3 2 1 5 Suitable Paints and Sealant Materials 3 2 1 5 1 Paint Types Approved for Use Industrial Acrylic Paints Alkyd based Paints When selecting paint for...

Page 30: ...UIDE OPTIONS This fireplace comes with guides to ensure finish materials do not encroach into the convection air area of the fireplace Some decorative Front models for this fireplace come with additio...

Page 31: ...llingFront RecessedInto Wall Note You must order Recessed mount guide kit This option allows the front to mount with any finish material It is a recessed finish Use the reference chartor pricing sheet...

Page 32: ...ed maximum operation temperatures Mendota Hearth will not be held liable for any adverse effects on a television or other products locate d near to a Mendota Hearth fireplace The drawings below show r...

Page 33: ...e heat from the fireplace and redirectit to another area When use d correctly these heat transfer systems can make it possible to mount a television above the fireplace without installing a mantel or...

Page 34: ...e ON OFF key Release the MODE key Press the MODE key once to highlight the convection fan function 4 While still holding the ON OFF key pressthe DOWN ARROW key The display will change from Set to Clr...

Page 35: ...lace for mounting a television the Versiheat system must always be on when the fireplace is in operation Because the Versiheat system must be running to reduce temperatures the fireplace cannot be ope...

Page 36: ...above the fireplace for mounting a television the FlexHeat system must always be on when the fireplace is in operation Because the FLexHeat system must be running to reduce temperatures the fireplace...

Page 37: ...glasses for protection 2 Exercise extreme caution when using ladders or on rooftops and 3 be aware of electrical wiring locations in walls and ceilings This gas appliance and vent system must be vent...

Page 38: ...g requirements and venting restrictions ITEM DESCRIPTION 1 6 or 7 PIPE DuraVent 6 Amerivent 7 9 12 2 12 VENT STACK 3 24 VENT STACK 4 36 VENT STACK 5 48 VENT STACK 6 90 GALVANIZED ELBOW 6a 45 GALVANIZE...

Page 39: ...UM APPROVED APPROVED APPROVED APPROVED NOT ALLOWED APPROVED H2 V H2 H2 V2 V1 V2 V V H1 H1 H1 H STRAIGHT UP VERTICAL VENTING THREE HORIZONTAL DISCHARGE 90 ELBOWS VERTICAL RISE TRIPLE 90 ELBOWS VERTICAL...

Page 40: ...18 inches 45 cm recommended to prevent condensation on window J Clearance to non mechanical air supply inlet to building or the combustion air inlet to any other appliance 12 inches 30 cm minimum D V...

Page 41: ...stem gas appliances are terminated next to each other the minimum required distance between the vertical center line of the vent caps is 18 to prevent recirculation of exhaust from one vent cap outlet...

Page 42: ...ction box cover plate secured with four screws route the 3 wire end of an extension cord or house power wire cable through the strain reliefsin the cover plate 2 Locate in the manual packet the plug s...

Page 43: ...Two cover plates are supplied and are White and Beige in color If the home d cor requiresa different color other than the two supplied colors obtain one from a local hardware store Make certain that...

Page 44: ...ntrol Wiring Errors can cause improper and dangerous operation Verify proper operation after servicing 3 3 4 Wi Fi Dongle and Application This appliance has the capability to be controlled via an appl...

Page 45: ...ELIMINATE THE POSSIBILITY OF CONTAMINANTS ENTERING THE GAS TRAIN ADHERE STRICTLY TO LOCAL AND NATIONAL CODES 3 4 2 Gas Supply Line Sizing This Mendota Gas Fireplace comes equipped with a 1 2 N P T Fem...

Page 46: ...ly piping system by closing its equipment shut off valve during any pressure testing of the gas supply piping system at test pressures equal to or less than 1 2 psi 3 5 kPa 3 4 4 Drip Leg Recommended...

Page 47: ...e upward 90 degreesor until it stops Figure 3 31 EMERGENCY GAS SHUTOFF 3 4 7 Gas Inlet Fittings Information Caution Before you run the gas line read understand and properly calculate the required gas...

Page 48: ...dy has the orifice hole size stamped on it LPG orifice size shall be 50 ML39 48 ML47 49 ML54 and ML60 and 46F 54R ML72 for 0 2000 ftand 51 ML39 49 ML47 ML54 or ML60 and 46F 54R ML72 for 2000 5000ft Ve...

Page 49: ...a Mendota approved servicepersonin accordance with instructions All joints are secured twist locked and leak proof Horizontal or verticalvent cap is installed right side up and tightlysealed to struct...

Page 50: ...let and Fireplace To remove the outer box identify and remove four Philips head drywall screws that secure a cardboard L pincher at the bottom of each corner of the box Lift the outer box vertically s...

Page 51: ...decorative front are not included with this base Fireplace product One of the many log set and media options firebox inner liner options and decorative fronts options must be selected and purchased s...

Page 52: ...nter glass frame over firebox left to right 3 After door has been placed into slots rotate door towards firebox until gasket seal is touching the firebox frame 4 Use the tool provided to connect the s...

Page 53: ...s to handle the light bulb Touching the light bulb will leave oils and dirt on the lens and will cause premature failure of the light bulb 3 Use a 3 8 hex hand driver to loosen the nuts 4 Remove the l...

Page 54: ...fireplace cavity Follow the step below to prepare this fireplace for conversion to LP gas 1 Remove the glass frame Directions to remove the glass frame are in this manual See section TO REMOVE DOOR 2...

Page 55: ...emove the orifice When removing and installing the orifices be sure to use a wrench to keep the fitting the orifice screws onto from rotating The ML72 has two air shutter boxes both orifices need to b...

Page 56: ...etail view below If you see NAT printing on the adjustment clip this indicates that the pilot is set to burn natural gas Push the clip in so that NAT is not visible 8 Tighten down hex shaped base of p...

Page 57: ...s pre fitted as part of assembly E 3 See Figure 3 12 Figures 3 and Figure 3 12 4 Install the new stepper motor pressure regulator assemble Use the provided screws F M4 x 0 7 threaded length of thread...

Page 58: ...leak proof WARNING Do not proceed with operation of this fireplace unless burner cycles on off without delays 4 8 3 Pilot Flame and Burner Relationship Verification Prior to completing the LPG convers...

Page 59: ...on requirements The Mendota Fireplaces must be vented to the outside in accordance with the latest edition of the National Fuel Gas Code In the absence of local c odes the installation must conform wi...

Page 60: ...mum Vent System length allowed is 46 feet Maximum number of 90o elbows allowed in Zone A is 3 and in Zone B is 4 In Zone A 32 feet maximum horizontal run allowed with a 4 feet starter section for NG a...

Page 61: ...ection Is Less Than 4 For vent systems that provide a starting vertical section less than 4 the following rules apply A You must use the Master Venting Requirements Chart B A single 90 vertical to hor...

Page 62: ...exterior wall Cut and frame a 10 3 4 wide x 10 3 4 high opening in the wall The hole must be positioned so the vent system will run level or have a rise per foot of run AND be perpendicular to the wal...

Page 63: ...ipe sections overlap we suggest pre assembling and measuring the total vent pipe run so you can more accurately locate the point where the vent pipe will penetrate the outside wall Be sure all vent co...

Page 64: ...S FIREPLACE Page 64 V 2 MIN H1 H2 MAX 2 3 3 16 4 32 4 12 32 For V greater than 12 see Master Venting Chart Vertical Rise Three 90 Elbows Horizontal Termination Use the Master Venting Chart to calculat...

Page 65: ...r pipe joints are sealed and are leak proof Maintain 1 airspace clearancesto combustibles 2 above horizontal runs Cut a 10 x 10 opening in the roof centered in the small drilled hole placed in the roo...

Page 66: ...iderable time and effort in the design of this fireplace and its venting system Through this effort Mendota has been able to certify the use of Four 900 elbows The use of Four 900 elbows must meet som...

Page 67: ...proved Vent Systems One of three power vents may be installed with this fireplace Choose the correctpower vent according to the required vent r un For detailed installation instructions follow the inc...

Page 68: ...85 03 01205 ML SERIES FIREPLACE Page 68 4 11 2 Power Vent Exterior Vent Locations and Restrictions Note All measurements are to be taken from the edge of the Power Vent...

Page 69: ...r installation To adjust the damper look into the convection air cavity and note the Damper Position Indicator Hook glass latch tool in the hole at the end of the damper rod pull outward about 1 8 and...

Page 70: ...g procedure NOTE All adjustments to the air shutter setting must be made by a qualified installer service agency or the gas supplier Very small changes in shutter settings make major changes in fl ame...

Page 71: ...us in any room In addition to offering the most realistic log details textures coloration and the most realistic wood fire options Mendota also offersa large array of internal firebox lining options a...

Page 72: ...ll operate When the master switch is in the on condition the main burners will function as designed In case of an emergency toggle the master switch to off to turn off the main burners To synchronize...

Page 73: ...This can occur if the remote control is moved to another room or if the remote batteries are very weak b Normal Thermostat On In this mode the fireplace will turn itself on and off dependingon the tem...

Page 74: ...ning Smart Thermostat a If the thermostat icon displays as OFF Manual the fireplace will ignite and start on Hi b If the thermostat icon displays as ON Normal Thermostat the fireplace will only ignite...

Page 75: ...off or adjust the fan speed Once you set the desired fan control the system will remember your selected fan speed until you manually change it Accent Light This function controls the accent light fun...

Page 76: ...elow 50 F This will keep the fireplace chimney heated for proper updraft during burner ignition and it will also eliminate excessive condensation of exhaust vapors on the door glass Leaving the firepl...

Page 77: ...t fails to light the system will lockout PressON OFF button on remote control to Turn Off the system and reset the lockout Allow five minutes for any gas in the unit to dissipate before attempting to...

Page 78: ...11 2 Where can I find the model and serial numbers When requesting service you will be asked to provide the model number and serial number to your Mendota dealer This information will expedite the wa...

Page 79: ...e condition of any wiring under the burner for melting or damage 2 Clean pilot light flame sensor rod and sparker rod using emery cloth Vacuum clean pilot light assembly 3 Visual check of pilot flames...

Page 80: ...not covered under warranty 5 11 7 What should I do if my fireplace is sooting Sooting is caused by improper installation or air shutter operation However some small areas of soot deposits on log surfa...

Page 81: ...button down 4 If you see set the thermostat button is now enabled 5 If you see clear the thermostat button is disabled 6 Repeat this procedure if you did not see set or clear to add remove the thermo...

Page 82: ...e viewing glass should be cleaned periodically Exterior glass surface may be cleaned with cleaner as desired To clean Interior glass surface remove glass frame assembly See 4 5 To Remove Door Use Kel...

Page 83: ...review and calculation of proper main burner orifice sizes prior to first firing It is known that unpurified Natural Gas from backyard wells can contain high energy levels causing over firing Further...

Page 84: ...of the burner to the floor Then slide the burner to the left to remove the burner tube from the shutter box Detailed instructions for removing the burner can be found in the converting to LPG section...

Page 85: ...ls The blowers are located under these panels towards the rear of the fireplace The blower assemblies are attached to the floor with two nuts Remove the nuts and lift the blower assemblies out of the...

Page 86: ...85 03 01205 ML SERIES FIREPLACE Page 86 6 6 4 Gas Train Assembly Parts ML39 Gas Train Assembly Parts ML47 ML54 and ML60 Gas Train Assembly Parts...

Page 87: ...85 03 01205 ML SERIES FIREPLACE Page 87 ML72 Gas Train Assembly Parts...

Page 88: ...ct the glass surface Use tracer lines in gasket to determine where the glass should sit on the gasket surface 4 Place glass and gasket assembly in glass frame and carefully bend down glass retainer ta...

Page 89: ...nual Burner flames are stable and are not lifting off burner Inform owner that an initial curingstep is required Read and follow Mendota Fireplace and Insert Curing Instructions found on unit and in o...

Page 90: ...ss thermal breakage only STD Stainless Steel Burner Tubes Ceramic Burners STD All Castings EXT STD Valve Assembly and all gas control components Pilot Assembly Flame Sensor Spark Electrode PilotTubing...

Page 91: ...ed to be defective prior to processing or authorizing of any claim Failure to allow this upon request will void the warranty All warranty claims must be submitted by the dealer servicing the claim inc...

Page 92: ...covered under the terms of this warranty 14 Freight damages for products or parts are not covered under the terms of the warranty 15 Products made or provided by other manufacturers and used in conjun...

Page 93: ...s must register with Mendota to qualify for the Lifetime Limited Warranty within 3 0 days Product registration will activate your Lifetime Limited Warranty Owners should complete the forms available a...

Page 94: ......

Page 95: ...Johnson Gas Appliance Company 520 E Avenue NW Cedar Rapids Iowa 52405 Mendota Warranty Registration...

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