Monessen Hearth MJ27NR, MJ27PR Placement in a fireplace with a restrictive barrier

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Placement in a fireplace with a restrictive barrier

Important information for the installation of this gas log set

The following are guidelines for placing a gas log set in a fireplace that has a restrictive barrier along the bottom front opening of the fireplace. Some examples of barriers are glass/screen door frames and sunken/recessed fireplaces.

Height of Restriction (X)

Minimum Depth of Fireplace/Firebox

No restriction

14"

0 to 11/2"

17"

From 11/2" to 3"

17"

Greater than 3"

Any barrier greater than three inches (3") placed in front of

 

the gas log set is not recommended by the manufacturer.

Glass door frames with adjustable louvers should have the louvers fully open while the unit is in operation.

X

Height of restrictive barrier caused by glass door frames, recessed fireplaces, etc. from the base or bottom surface of the unit. (Refer to Table).

The log set should be placed against or as near as possible to the rear wall of the fireplace/firebox.

 

NOTE

Anytime there is a restrictive

 

barrier of more than 11/2", the

 

remote receiver should be

 

 

 

 

located outside the firebox.

 

 

 

Depth of fireplace/firebox.

(Refer to Table).

Figure 3 - Reference Drawing of the MJ27 Log Set in an Enclosure

WARNING

Barriers such as the bottom of a glass door frame placed in front of a gas log set can change the air flow characteristics of the fireplace which in turn can cause the unit to overheat and malfunction.

NOTE: Noncombustible material such as refractory brick may be used to line the floor of the fireplace in order to raise the height of the gas log set in relation to a restrictive barrier. If the unit is raised, the minimum height dimension listed in the homeowner’s manual must not be exceeded.

NOTE: If the log set is equipped with a remote receiver, a restrictive barrier may reduce the battery life by increasing the ambient temperature inside the fireplace. Placement of the receiver outside of the fireplace will extend the battery life.

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86D0024

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Contents Models MJ27NR, MJ27PR Natural Gas or Liquid Propane Control Type Millivolt Hi/LowContents Owner Important Safety InformationInstaller Gas Code, Ansi Z223.l/NFPA54Utility gas wells. This gas is commonly Never connect unit to private nonKnown as wellhead gas Getting Started What you will need for installationMake sure you have received all parts Product Features and Specifications American National Standards Institute, Inc General Installation InformationCodes National Fire Protection Association, IncBTU / hr = Fireplace and Hearth Dimensions Minimum Hearth DimensionPlacement in a fireplace with a restrictive barrier Height of Restriction Minimum Depth of Fireplace/FireboxClearances and Height Requirements Sidewall and Ceiling ClearancesHeat Resistant Requirements for Safe InstallationMeasurement MJ27 Heat Resistant Requirements for Safe Installation with Wood Mantel, Shelf or Other Combustible Projection12 min Is an example of an unsafe mantel instal Floor Clearance Minimum Clearance above Combustible FlooringInstalling Vented Applications Before installing in a solid fuel burningPaint by a qualified chimney cleaner Fireplace PreparationAssembly procedure Installing Vented ApplicationsPlacing and Securing Appliance Connecting the GAS Gas ConnectionChecking GAS Pressure Millivolt Valve Control FigureElectrical Wiring Millivolt AteBurner Connecting Remote ReceiverDo not allow wires To touch grate orLOG Placement Install Log #8 Install Log #4 Place Flickering Embers Place Flickering Bright EmbersAssembly Instructions Andiron and rock installationANDIRON Installation Placing the decorative rockFlame Appearance Checking the pilot flameChecking the Burner Flame Operating InstructionsOperating Instructions What to do if YOU Smell GASTo Turn OFF GAS to Heater Operating Instructions / Cleaning and Servicing Cleaning and ServicingShould service and repair the heater TroubleshootingServicing. Only a qualified service person Turn appliance OFF and allow to cool beforeGoes out when control Replacement parts Description QtyLogs Replacement Parts listDescription Qty MJ27 Please Read and Follow These 86D0024 Basic Warranty Lifetime WarrantyFive Year Warranty If Warranty Service is NeededMhsc