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ML47 FEATURES - QUICK REFERENCE INFORMATION 

CERTIFICATION and LISTING: 

Certified under ANSI Z21.88 (2014) 

 CSA 2.23 (2014) “Vented Gas Fireplace Heater " 

not for use with solid fuel

. Not to be used as primary heat source

EFFICIENCY RATINGS

:  P.4 Fireplace Efficiency 71.3%. AFUE Natural Gas 70%, AFUE LP Gas 70.7% 

EXTERNAL DIMENSIONS

: 54-1/4” Wide X 39” High  X 19-1/2” Deep 

GLASS SIZE

: NeoCeram Glass with non-reflective coating.  Visible Glass measures 45” X 14-1/2”.  Visible Glass Area 

equals 652.5 in

2

. Actual Glass size is 46-3/16” X 15-9/16”. 

MINIMUM FIREPLACE FRAMING DIMENSIONS REQUIREMENT

: 54-1/4 Wide X 39” High X 19-1/2” Deep 

FRAMING MATERIALS REQUIREMENT

: Minimum 2X4 Lumber 

HEARTH PROTECTION PAD: NOT REQUIRED

: Glass bottom edge is raised 9-1/2” within appliance body. 

ELECTRICAL SUPPLY REQUIREMENT

: 120 VAC, 5 Amps. Unswitched. Junction Box provided inside appliance. 

VENT SYSTEM REQUIRMENTS

: 5”x8” Coaxial Rigid Vent System. MINIMUM INITIAL VERTICAL RISE REQUIRED IS 

18” for Natural Gas and 24” for LP Gas. Maximum Horizontal Vent Length with the Minimum Vertical Starter Section 
equals 6”.  Maximum Horizontal Vent run with 4 feet Vertical starter section connection equals 32 feet for NG and 27 feet 
for LPG.. Maximum Vertical vent run equals 42 feet. 

MANTEL ALLOWANCE

: 8” Deep Mantel at 12” Above Top Convection Opening .Use the Approved Mantel Profile Chart. 

VENT DAMPER ADJUSTMENT AVAILABLE

: A single Disc Damper is available for exhaust flow adjustments. 

CONTROLS

: IPI Electronic Ignition System with AC Primary Power and DC Backup Power. Remote Control included. 

Accent Light operates on AC Power only. 

BLOWER SYSTEM

: Optional 210 CFM Dual Blower System. 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 SYSTEM

: Dual Accent Light System Included. Light can be turned on or off and dimmed from remote 

control.  

BURNER SYSTEM

: Single Ceramic Plaque Array burner. 

BURNER SHUTTER SYSTEM

: Manually controllable internal rotary Burner air shutter. 

BURNER MEDIA OPTIONS: 

Must install one burner media. Driftwood Logs set with Natural Rocks, Twig Set with coals, 

Natural Rock Set, Black Shades Rock Set, Diamond Clear Glass Pieces, Diamond Shape Black Glass Pieces, Round 
Clear Glass, and Round Black Glass. Multiple Media types may be combined together.. 

FIREBOX INNER LINING PANELS

: Black Enamel, Midnight Metallic Enamel, Metallic Mocha Enamel, Metallic Silver 

Enamel and Copper Enamel Panoramic options available. Each Firebox Panoramic Liner is supplied with matching Fire-
box Floor Panel. 

One Firebox Inner Liner Kit must be installed before any use.

 

NATURAL GAS INFORMATION

: Factory equipped for Natural Gas. 5”WC Minimum inlet pressure required. For NG ap-

plications, Burner Orifice Size is 1/8”. 

LPG INFORMATION

: LP conversion kit #HA-90-00110 is an available option. 11”WC Minimum inlet pressure required. 

 

 

CAUTION 

THESE INSTRUCTIONS ARE TO 

REMAIN WITH THE HOMEOWNER. 

NOTE:

 This installation must conform to local codes. In the absence of 

local codes, you must comply with the 

National Fuel Gas Code, ANSI 

Z223.1-latest edition

 in the U.S.A. and the Natural Gas and Propane 

Installation Code, 

CSA B149 Installation Codes

 in Canada. 

This appliance may be installed in an after-
market, permanently located, manufactured 
home (USA only) or mobile home, where not 
prohibited by local codes. 
This appliance is only for use with the type(s) 
of gas indicated on the rating plate. 

Summary of Contents for AA-11-02592

Page 1: ...e department 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...

Page 2: ...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 g...

Page 3: ...staller une barri re physique si des personnes risques habitent la maison Pour emp cher l acc s un foyer ou un po le in stallez 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 22 INSTALLATION OF FLAT PANEL TV ON TOP OF ML47 23 ENAMEL PANORAMIC LINER AND FLOOR PLATE INSTA...

Page 5: ...ENTS 45 LOCATION OF MASTER SWITCH AND SYNC SWITCH 46 Remote Control Transmitter Functions 47 REMOTE TRANSMITTER OPERATING INSTRUCTIONS 48 FIRST TIME PILOT LIGHTING INSTRUCTIONS 50 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 compart ments burners and circulating air passageways of the appliance be kept clean...

Page 11: ...N INFORMATION Prior to installing at altitudes higher than 7500 please contact the Mendota technical service department for specific venting requirements and venting restrictions MINIMUM ROUGH FRAMING...

Page 12: ...distance up from the Floor Level of this Fireplace If you prefer to take measurements from the Top of the Convection Air Opening note that the Top of the convection air opening is 25 1 16 inches up f...

Page 13: ...more 16 in from of the front surface of the visi ble glass door and if perpendicular to the front surface of the glass door must be located a minimum of 16 from the side edge of the visible glass doo...

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 2 Planning Instal...

Page 15: ...e to prevent cold air drafting problems The chase should not break the outside building envelope in any manner Wall ceiling base plate and cantilever floor of the chase should be insulated Vapor and a...

Page 16: ...ition the finishing mate rial s edges adjacent to the top sides and bottom convection air gap around the glass frame Use the Inner Guide if you installing only the Traditions or Willowbrook Front or i...

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: ...p to 1 maximum The Traditions Front can be close to the glass frame or away from the glass frame This front comes with a screen and is a conforming safety barrier For the Traditions Front use the inne...

Page 19: ...e 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 Finishing Ma terial thickness allows This front...

Page 20: ...k as allowed by the Final Finish Material thickness Mount the Traditions or Willow brook Front at the desired depth relative to the Grace Front Note that the Traditions or Willowbrook Front s visible...

Page 21: ...ce from Floor to ML47 Bottom Surface DIM A MAXIMUM Distance from Floor to ML47 Visible Glass Bot tom Edge DIM B LIMITATIONS MUST BE ADHERED TO 84 15 24 3 16 LIMITED by Clearance to Soffit Use metal sh...

Page 22: ...e of the visible glass will be located 9 3 16 up from the floor level in this configuration Mendota recommends that the ML47 be installed on an elevated wood framed support stand of at least 15 tall w...

Page 23: ...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 cav ity to house the TV NEVER mount any TV above this f...

Page 24: ...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 25: ...mounting height of this single 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 C...

Page 26: ...stalled at a minimum of 12 above the heat outlet 37 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 27: ...e correct pipe sizes 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...

Page 28: ...his table GAS PRESSURE REQUIREMENTS NOTE For altitudes above 2 000 feet some variations in air shutter settings may be required Figure 4 Gas Valve Pressure Test Ports Manifold pressure must be taken a...

Page 29: ...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 30: ...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 31: ...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 32: ...erminal 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 located...

Page 33: ...M 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...

Page 34: ...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 35: ...rtical 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 36: ...LBOWS VERTICAL TERMINATION VERTICAL RISE DUAL 90 ELBOWS HORIZONTAL TERMINATION VERTICAL RISE TRIPLE 90 ELBOWS HORIZONTAL TERMINATION VERTICAL RISE TRIPLE 90 ELBOWS VERTICAL TERMINATION THREE HORIZONTA...

Page 37: ...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 per pendicular to the wall The height of the opening must be locate...

Page 38: ...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 39: ...ft 10 ft 28 ft 10 ft 40 ft Varies V1 min H1 max V2 max H2 max 18 in 6 in 36 1 2 ft 42 ft H1 V2 24 in 6 ft 32 ft 34 ft 42 ft H1 V2 30 in 13 ft 27 1 2 ft 42 ft H1 V2 36 in 19 ft 20 ft 42 ft H1 V2 42 in...

Page 40: ...nts 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 th...

Page 41: ...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 17...

Page 42: ...ws must meet some minimum prerequisites Prerequisite 1 The vent system must terminate vertically using a vertical vent cap Prerequisite 2 There must be a minimum 12 inches of vertical starter section...

Page 43: ...t 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 corner tabs in glass frame bottom corners with...

Page 44: ...Check Off List see above must be completed q Check for gas leaks and gas pressures prior to installing facing materials q Install fresh batteries in remote transmitter Follow Initializing the System...

Page 45: ...nd 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...

Page 46: ...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 47: ...replace will stay functioning until the room temperature increases 1o F above the Set Point Temperature To increase the Set Point Temperature Press the UP button until the desired temperature is displ...

Page 48: ...vel 1 and the Down but ton is pressed all burners will turn OFF If in IPI mode the pilot light will also extinguish If in Standing Pilot Mode the pilot light will remain ON Note If in SMART model the...

Page 49: ...to the room thermostat set point etc When the Transmitter batteries are low a Battery Icon will appear on the LCD display of the Transmitter before all battery power is lost When the batteries are rep...

Page 50: ...the pilot flame is lit and well established close glass door WARNING NEVER IGNITE MAIN BURNERS WITH GLASS DOOR REMOVED OR OPEN Doing so will lead to damage to pilot flame sensor and spark electrode w...

Page 51: ...e door glass Further leaving the fireplace in the Standing Pilot Mode will keep the fireplace body warm and eliminate cold drafts and heat loss to the cold air that is trapped inside the firebox REMOT...

Page 52: ...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 53: ...f necessary 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 a...

Page 54: ...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 55: ...e 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 56: ...ner Orifice Spud The Orifice Spud can be removed and installed using a hex wrench WARNING Make certain to Secure the Brass fitting and flex supply tube attached to the orifice in place using a 1 2 ope...

Page 57: ...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 58: ...s recom mended that all gas plumbing joints factory installed and field installed are checked for leaks Figure 19 Pressure Test Port PILOT FLAME AND MAIN BURNER RELATIONSHIP VERIFICATION Prior to comp...

Page 59: ...59 P a g e 1 MIN 1 MIN...

Page 60: ...lied in the Owner s Manual Packet to this same surface Prior to attaching the labels fill in all the information that is requested in these labels For installations from 610 1370 meters 2000 4500 ft t...

Page 61: ...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 62: ...cal 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 momen...

Page 63: ...y Con tact your dealer for more detailed ordering information Figure 22 GLASS FRAME ASSEMBLY HA 90 00102 REPLACEMENT PARTS LIST ITEM PART NUMBER DESCRIPTION 1 HA 90 00103 FRAME WELDMENT GLASS ML47 2 6...

Page 64: ...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 65: ...65 P a g e THIS PAGE LEFT BLANK INTENTIONALLY...

Page 66: ...66 P a g e THIS PAGE LEFT BLANK INTENTIONALLY...

Page 67: ...d and leak proof Check minimum and maximum vertical horizontal and vent runs 1000 sealant must be used on inner joints at adjustable pipe sections q CHECK FOR PROPER CLEARANCES TO COMBUSTIBLES VENT LO...

Page 68: ...68 P a g e TAPE SHUT JOHNSON GAS APPLIANCE COMPANY 520 E AVENUE N W CEDAR RAPIDS IA 52405 POSTAGE NEEDED...

Page 69: ...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 70: ...70 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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