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GENERAL INFORMATION 

Your Mendota Gas Fireplace has a state-of-the-art co-axial direct vent, sealed combustion system.  This advanced com-
bustion system brings in outside air for combustion and directly exhausts through an exhaust vent. The Mendota system 
maintains high air quality and assures proper operation in today's "air-tight" homes. 

Accessing gas valve train and electrical junction box during initial installation 

To gain access, prior to placing this fireplace in a framed chase, to make the gas supply connection, to install LPG con-
version kit, to check for gas leaks and to make initial electrical 
supply connection, remove the bottom two cover plates as 
shown, below. 

Make certain the lowest cover plate is re-

installed before this fireplace is placed in the framed 
chase. 

SAFETY AND STRUCTURAL CONCERNS: 

The ML47 Fireplace must be installed and serviced by 
a Mendota approved serviceperson.  Any adjustments 
to burner, pilot and burner media must be made by a 
Mendota approved service person.  If pilot goes out, 
always wait five (5) minutes before attempting to 
relight pilot.

 

VENTING REQUIREMENTS:  

This Mendota Fireplace can be vented using 
any available brand DIRECT VENT coaxial 
pipe (5”X 8”) off the top.  Use only Mendota 
specified vents and vent caps when in-
stalling your fireplace.  Closely follow vent-
ing locations, directions and require-
ments.  Observe the restrictions relating 
to vent position on exterior of home.  Be 
sure all vent pipe sections are fully twist-locked and leak-proof.  Be sure 1000

º

 Silicate Stove Sealant is used on the inner 

pipe joints of all Simpson DuraVent pipe components and all adjustable pipe sections. 
The Mendota Direct Vent Fireplace may be placed within 12 inches of adjacent sidewalls.   The fireplace may be placed 
directly on concrete or wood flooring.  If the appliance is to be installed on carpeting, vinyl or other combustible material 
other than wood flooring, the appliance shall be installed on a metal or wood panel placed on top of the flooring material 
and 

extending the full width and depth of the appliance.  An 8” combustible mantel may be installed at a minimum of 14" 

above the heat outlet (39

”) up from the floor level of this fireplace) and no more than 8" out from wall at that height.  Non-

combustible (marble, brick, stone, etc.) mantels can be installed at any desired height above the top convection air open-
ing. Combustible Mantels of any depth with a sheet metal protector plate in its under-side may only be installed 

outside

 

the “NON-COMBUSTILBE ZONE” above the top convection air opening. 
Never block off convection air openings or paths.  Always use Mendota decorative fronts and Mendota approved vent sys-
tems and vent caps. 

HEARTH PROTECTION PAD:  A non-combustible hearth protector is not required. 

AESTHETIC CONSIDERATIONS 

Burning or static fireplaces are a major aesthetic focus in any room.  Locate your gas fireplace as you would a television 
set.  The Mendota Hearth Gas Fireplace will be a continuing source of comfort and fascination.  Corner installations will 
afford you the greatest potential for viewing in many rooms.  This fireplace may be installed in an elevated position as long 
as 72 in. minimum distance is provided between the fl

oor level of this fireplace and the room’s ceiling surface. 

ELECTRICAL REQUIREMENTS: 

Electronic Ignition System and an Accent Light system are included in this Mendota Direct Vent Fireplace.  These devices 
require constant electrical power except during power outages.  A 120-volt electrical service must be supplied at the fire-
place location at the time of installation, on the left side of this fireplace.  It must be electrically grounded in accordance 
with local codes, or in their absence, with the current edition of the National Electric Code ANSI/NFPA 70.  Use of a wall 
switch control in the power supplied to this fireplace is NOT allowed. 
Three loose wires are secured to a metal plate on the left side in the gas train cavity using a nylon wire tie. Cut the nylon 
wire tie and use wire nuts to connect house power to the three color-coded loose wires. A junction box is not required 
since the steel body of this appliance functions as a fire stop. 

MANUAL GAS SHUTOFF VALVE INSTALLATION REQUIREMENT 

Obtain a Manual Gas Shutoff Valve approved per local gas plumbing codes and install per local gas plumbing codes in 
the specified location. Manual Shutoff Valve is not supplied with this product. 

Summary of Contents for ML47-PF2

Page 1: ...Installation and service must be performed by a qualified installer service agency or the gas sup plier WARNING Do NOT use this appliance if any part has been under water Immediately call a qualified...

Page 2: ...l appareil et remplacer toute partie du syst me de contr le et toute commande qui ont t plong s dans l lau In the Commonwealth of Massachusetts Installation must be performed by a licensed plumber or...

Page 3: ...nstaller une barri re physique si des personnes risques habitent la maison Pour emp cher l acc s un foyer ou un po le installez une barri re de s curit cette mesure emp chera les tout petits les jeune...

Page 4: ...20 RAISED HEIGHT INSTALLATION OF ML47 21 How to determine the proper installed height of this fireplace 21 INSTALLATION OF FLAT PANEL TV ON TOP OF ML47 22 ENAMEL PANORAMIC LINER AND FLOOR PLATE INSTA...

Page 5: ...ENTS 44 LOCATION OF MASTER SWITCH AND SYNC SWITCH 45 Remote Control Transmitter Functions 46 REMOTE TRANSMITTER OPERATING INSTRUCTIONS 47 FIRST TIME PILOT LIGHTING INSTRUCTIONS 49 IPI STANDING PILOT S...

Page 6: ...e Building Code 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 exhaust v...

Page 7: ...SIONS OVERALL APPLIANCE DIMENSIONS AND FEATURES Removable Cover Plate for Plumbing Electrical Access before unit is placed inside framed cavity Replace Lower Cover Plate before sliding unit into frame...

Page 8: ...em 120VAC 2 Amps Dedicated Hot Power only No switches Fan Speed Controls or Light Dimmers are allowed in the same AC supply circuit Optional fans are controlled using re mote control ACCENT LIGHT SYST...

Page 9: ...T TO FLOOR 0in 0mm GLASS EDGE TO ADJACENT SIDEWALL 16in 406 mm UNIT TO ENCLOSURE SIDEWALL 1 2in 13mm VENT PIPE TOP TO COMBUSTIBLES 3in 76mm UNIT TO ENCLOSURE BACK WALL 1 2in 13mm VENT PIPE SIDES TO CO...

Page 10: ...be required due to excessive lint from carpeting bedding material carbon build up etc It is imperative that control com partments burners and circulating air passageways of the appliance be kept clean...

Page 11: ...4 1 4 39 19 1 2 6 1 1 1 6 7 5 1 6 8 6 5 5 1 6 4 1 1 1 6 4 1 2 1 1 1 0 9 8 7 6 3 5 1 6 2 1 1 1 6 2 1 5 1 6 1 1 1 6 1 2 3 4 5 0 0 A P P R O V E D M A N TE L P R O FILE D IS TA N C E FR O M FIR E P LA C...

Page 12: ...n Air Opening note that the Top of the convection air opening is 30 inches up from the floor level of this fireplace WARNING Make proper use of this chart Do not compromise the specifications containe...

Page 13: ...front surface of the visible glass door and if perpendicular to the front sur face of the glass door must be located a minimum of 16 from the side edge of the visible glass door Figure 2 Clearances to...

Page 14: ...nd ceiling fan are desired Selecting Appliance Location When selecting a location for your appliance it is important to consider the required clearances to adjacent side walls Figure 3 Planning Instal...

Page 15: ...for the requirements of local building codes Local building codes MUST be adhered to Chases should be constructed in the manner of all outside walls of the home to prevent cold air drafting problems T...

Page 16: ...temporary guides and are to be used to position the finishing materi al s edges adjacent to the top sides and bottom convection air gap around the glass frame Use the Inner Guide if you installing onl...

Page 17: ...ace s rectangle profile must extend out from the face surface of this fireplace 1 inch if the 19 1 2 framing depth is used and the Inner or Outer Finishing Guides are utlizied A MAXIMUM THICKNESS OF 2...

Page 18: ...fety Screen For the Traditions Front use the inner guides or use your selection of Metallic tile edging Willowbrook Front Only The Willowbrook Front is approximately the overall size of the viewing gl...

Page 19: ...the rough framing depth and the Outer Adjustable Framing Brackets With Final Finishing Material mounted behind the Grace by using the inner guides the Grace can be mounted only as close as the Final...

Page 20: ...th the Grace Front s visible sur face if the Final Finishing Material is less than and the Adjustable Framing Brackets are employed properly Final Finishing Material mounted outside the Grace Front us...

Page 21: ...t cap spanning 36 wide centered over the vent cap and spanning the full depth of the sof fit spaced 1 down from the soffit surface using tubular spacers or stacked washers This metal shield allows you...

Page 22: ...bottom edge of the TV cavity as much as possible beyond the 18 minimum requirement Higher up means a cooler TV You MUST create a recessed 5 deep cavi ty to house the TV NEVER mount any TV above this...

Page 23: ...r Mocha Metallic and Silver Metallic attractive colors You must select one col ored Panoramic Panel Kit and install it before any test firing of this appliance The specific color kits and its correspo...

Page 24: ...ingle gang box with the height of other AC outlets that are installed in the same room as this appliance WARNING DO NOT STAPLE the 6 DC Power Inlet Harness to the wall studs COVER PLATES Two cover pla...

Page 25: ...stalled at a minimum of 14 above the heat outlet 39 up from the floor level of this fireplace and no more than 8 out from wall at that height Non combustible marble brick stone etc mantels can be inst...

Page 26: ...PIPE LENGTH FEET SCHEDULE 40 PIPE INSIDE DIA TUBING TYPE L OUTSIDE DIA NAT L P NAT L P 0 10 1 2 1 3 cm 3 8 1 0 cm 1 2 1 3 cm 3 8 1 0 cm 10 40 1 2 1 3 cm 1 2 1 3 cm 5 8 1 6 cm 1 2 1 3 cm 40 100 1 2 1 3...

Page 27: ...his table GAS PRESSURE REQUIREMENTS NOTE For altitudes above 2 000 feet some variations in air shutter settings may be required Figure 6 Gas Valve Pressure Test Ports Manifold pressure must be taken a...

Page 28: ...the 30 minutes of burn time Write the reading here Final Gas Meter Reading _______________ Calculate the following FINAL GAS METER READING INITIAL GAS METER READING Subtract Initial Gas Meter from Fin...

Page 29: ...n prepare the rough opening using framing dimensions Be sure to also prepare opening to allow for co axial vent 2 Check to make certain all venting requirements and locations are being followed 3 This...

Page 30: ...e its own separate vent system Common vent systems are prohibited To assure proper venting performance of this high performance Mendota Direct Vent Fireplace it is critical that all brands of vent pip...

Page 31: ...terminal 18 47 cm min K Clearance to a mechanical air supply inlet 6 feet 1 8 m minimum E Clearance to unventilated soffit 18 min 46 cm min L Clearance above paved side walk or a paved driveway locat...

Page 32: ...DESCRIPTION 1 6 or 7 PIPE DuraVent 6 Amerivent 7 2 12 VENT STACK 3 24 VENT STACK 4 36 VENT STACK 5 48 VENT STACK 6 90 GALVANIZED ELBOW 45 GALVANIZED ELBOW 7 ADJUSTABLE WALL THIMBLE not shown 8 ATTIC I...

Page 33: ...is 4 In Zone A 32 feet maximum horizontal run allowed with a 4 feet starter section for NG and 27 feet maximum horizontal for LPG If the starter vertical section is less than 4 feet use the chart and...

Page 34: ...ertical section less than 4 feet the following rules apply a You must use the Master Flue Venting Requirements Chart See Zone A below the 4 vertical run line b A single 90 vertical to horizontal elbow...

Page 35: ...E T R IP L E 9 0 E L B O W S H O R IZ O N T A L T E R M IN A T IO N V E R T IC A L R IS E T R IP L E 9 0 E L B O W S V E R T IC A L T E R M IN A T IO N T H R E E H O R IZ O N T A L D IS C H A R G E 9...

Page 36: ...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 wall The height of the opening must be locate...

Page 37: ...netrate the outside wall See Figure 13 Be sure all vent components are properly twist locked and leak proof Be sure 1000 sealant is used in the inner pipe joints of all pipe sections manufactured by S...

Page 38: ...ft 30 in 9 ft 36 in 15 ft 42 in 21 1 2 ft 48 in 28 ft 4 ft 10 ft 28 ft 10 ft 40 ft Varies V1 min H1 H2 max V2 MAX 24 in 2 ft 10 ft 30 in 9 ft 10 ft 36 in 15 ft 10 ft 42 in 21 1 2 ft 10 ft 48 in 28 ft...

Page 39: ...oints DuraVent only are sealed and are leak proof Maintain 1 airspace clearances to combustibles 2 above horizontal runs Cut a 10 x 10 opening in the roof centered in the small drilled hole placed in...

Page 40: ...e V1 min H max V2 max 18 in 6 in 38 1 2 ft 24 in 6 ft 34 ft 30 in 13 ft 27 ft 36 in 19 ft 21 ft 42 in 25 1 2 ft 14 1 2 ft 48 in 32 ft 10 ft 4 ft 10 ft 32 ft Varies 10 ft 40 ft Varies Varies Figure 19...

Page 41: ...starter section connected directly to the top of this fire place Prerequisite 3 For vertical starter sections less than 4 feet tall you must reduce 6 feet off the maximum horizontal run allowed per F...

Page 42: ...bs that protrude downward on the bot tom left and right corners of glass frame Identify a rec tangle slot on the bottom right and left corners of firebox opening sides Carefully line up the bottom cor...

Page 43: ...Check Off List see above must be completed Check for gas leaks and gas pressures prior to installing facing materials Install fresh batteries in remote transmitter Follow Initializing the System for...

Page 44: ...burner media are positioned properly For Natural Gas applications air shutter shall be 1 8 open For LPG applications start with air shutter open to 3 8 After burner has been properly installed and ope...

Page 45: ...actuate the two switches The Master Switch must be ON for the pilot flame and burner flames to activate The SYNC switch is to be used initially when mating the remote transmitter with the receiver lo...

Page 46: ...o F above the Set Point Temperature To increase the Set Point Tem perature Press the UP button until the desired temperature is displayed in the SET POINT TEMPERATURE window The fan will turn on 5 mi...

Page 47: ...guish If in Standing Pilot Mode the pilot light will remain ON Note If in SMART model the flame height function is not available for manual adjustment In SMART mode the flame height regulates automati...

Page 48: ...d the number of ignitions of the appliance the number of changes to the room thermostat set point etc When the Transmitter batteries are low a Battery Icon will appear on the LCD display of the Transm...

Page 49: ...oor WARNING NEVER IGNITE MAIN BURNERS WITH GLASS DOOR REMOVED OR OPEN Doing so will lead to damage to pilot flame sensor and spark electrode wire leads Press the ON OFF button on Transmitter to ON All...

Page 50: ...ot light then uses the pilot light to ig nite the main burners The pilot light can be set in the CPI Standing Pilot mode to allow the pilot light to remain on indef initely by setting the Remote Trans...

Page 51: ...he pilot light flame Use the IPI mode instead during summer months CLEANING VIEWING GLASS The viewing glass should be cleaned periodically Exterior glass surface may be cleaned with cleaner as desired...

Page 52: ...y C Periodically check to verify that the vent system and vent cap are open and free of blockage D Before re installing glass have qualified service person check the operation of the pilot and cycle t...

Page 53: ...r plate remove main burner Locate two access plates on the left and right side of firebox floor See diagrams below Unscrew seven outer screws and lift entire left or right cover plate assem bly which...

Page 54: ...ce and the Valve Pressure Regulator This conversion kit shall be installed by a qualified service agency in accordance with the manufacturer s instructions and all applicable codes and requirements of...

Page 55: ...lator in place Tighten down 3 Remove the Burner Locate and Identify the Burner Orifice Spud The Orifice Spud can be removed and installed using a hex wrench WARNING Make certain to Secure the Brass fi...

Page 56: ...or failure to use only parts specifically ap proved with this appliance may result in property damage or personal injury AVERTISSEMENT Risque de dommages ou de blessures si les pi ces ne sont pas inst...

Page 57: ...mended that all gas plumbing joints factory installed and field installed are checked for leaks Figure 21 Pressure Test Port PILOT FLAME AND MAIN BURNER RELATIONSHIP VERIFICATION Prior to completing...

Page 58: ...ou are derating this appliance at a high altitude also attach the High Altitude Deration Label supplied in the Owner s Manual Packet to this same surface Prior to attaching the labels fill in all the...

Page 59: ...ALVE ASSEMBLY REPLACEMENT PARTS LIST ITEM QTY PART NUMBER DESCRIPTION 1 1 05 04 00062 Pilot Assembly 2 2 65 14 00180 ORIFICE 1 8 3 1 HA 90 00004 Proflame Valve Assembly with fittings 4 1 55 02 00070 T...

Page 60: ...ical Code Caution Label all wires prior to disconnection when servicing controls Wiring errors can cause improper and danger ous operation and Verify proper operation after servicing Attention Au mome...

Page 61: ...nts are available through Johnson Gas Appliance Company Con tact your dealer for more detailed ordering information Figure 24 GLASS FRAME ASSEMBLY HA 90 00102 REPLACEMENT PARTS LIST ITEM PART NUMBER D...

Page 62: ...ound on the rating plate which is located in the air gap below the glass frame near the center When contacting your dealer for any cleaning service or warranty service always provide the Model Number...

Page 63: ...63 P a g e THIS PAGE LEFT BLANK INTENTIONALLY...

Page 64: ...64 P a g e THIS PAGE LEFT BLANK INTENTIONALLY...

Page 65: ...ocked and leak proof Check minimum and maximum vertical horizontal and vent runs 1000 sealant must be used on inner joints at adjustable pipe sections CHECK FOR PROPER CLEARANCES TO COMBUSTIBLES VENT...

Page 66: ...66 P a g e TAPE SHUT JOHNSON GAS APPLIANCE COMPANY 520 E AVENUE N W CEDAR RAPIDS IA 52405 POSTAGE NEEDED...

Page 67: ...ases that have not received prior written approval from Mendota NOTE Minor warping of certain parts or discoloration is normal and is not a defect covered by this warranty Major warping of parts can b...

Page 68: ...68 P a g e Johnson Gas Appliance Company 520 E Avenue N W Cedar Rapids IA 52405 Mendota Hearth Division WEBPAGE www johnsongas com or www mendotahearth com 85 03 00923...

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