Desa VF-24N-MHD, VF-24P-MHD, VF-18N-MHD, VF-18P-MHD, VF-18P-MHD, VF-18N-MHd Mantel Clearances

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INSTALLATION

Continued

Mantel Clearances

In addition to meeting noncombustible material clearances, you must also meet required clearances between fireplace openings and mantel shelf on each side of the fireplace. If you do not meet the clearances listed below, you will need a hood.

Determining Minimum Mantel Clearance If you meet minimum clearance between mantel shelf and top of fireplace opening, a hood is not required (see Figure 6, page 10).

Determining Minimum Mantel Clearance

When using a Hood

If minimum clearances in Figure 6, page 10 are not met, you must have a hood. When using a hood there are still certain minimum mantel clearances required. Follow minimum clearances shown in Figure 7, page 10 when using hood.

NOTICE: Surface temperatures ofadjacentwallsandmantelsbe- comehotduringoperation.Walls and mantels above the firebox may become hot to the touch. If installed properly, these tem- peratures meet the requirement of the national product standard. Follow all minimum clearances shown in this manual.

NOTICE: If your installation does not meet the minimum clear- ances shown, you must do one of the following:

operate the logs only with the flue damper open

raise the mantel to an accept- able height

remove the mantel

Floor Clearances

A.If installing appliance on the floor level, you must maintain the minimum distance of 14" to combustibles (see Figure 8).

B.If combustible materials are less than 14" to the fireplace, you must install appliance at least 5" above the combustible flooring (see Figure 9).

Combustible

14" Material

Min.

Noncombustible Material

Figure 8 - Minimum Fireplace Clearances

If Installed at Floor Level

Hearth

Combustible Material

5"

Min.

Figure 9 - Minimum Fireplace Clearances

Above Combustible Flooring

INSTALLING HEATER ASSEMBLY

CAUTION: Do not remove the data plates attached to the heater base assembly. The data plates contain important warranty and safety information.

WARNING: If installing in a sunken fireplace, special care is needed. You must raise the fireplace floor to allow access to heater control panel. This will in- sure adequate air flow and guard against sooting and controls be- ingdamaged.Raisefireplacefloor with noncombustible material. Make sure material is secure.

CAUTION: Do not pick up heaterassemblybythelogs.This could damage heater. Only han- dle base assembly by grates.

IMPORTANT: Make sure the heater burner is level. If heater is not level, heater will not work properly. IMPORTANT: Remote receiver module is attached to the valve by a velcro strap. This module needs to remain where installed. If removed and wires cross, this can cause the remote to fail.

116986-01B

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Contents Models VF-18N-MHD, VF-18P-MHD, VF-24N-MHD VF-24P-MHD What to do if YOU Smell GASTable of Contents Safety Information Product Identification Product IdentificationAir For Combustion Ventilation Product FeaturesLocal Codes UnpackingDetermining if You Have a Confined or Unconfined Space Determining fresh-air flow for heater locationConfined and Unconfined Space Ventilation Air From Outdoors Ventilation AIRVentilation Air From Inside Building Check GAS Type InstallationInstallation and clearances for vent-free operation Installation Floor Clearances Installing Heater AssemblyDetermining Minimum Mantel Clearance When using a Hood Mantel ClearancesInstallation Items Needed Connecting to gas supplyPropane/LP Gas Checking gas connectionsNatural Gas Test Pressures Equal To or Less Than Psig 3.5 kPa Pressure Testing Heater Gas ConnectionsAdding Embers, Lava rock and Decorative logs Operating Heater For your safety Read before lightingFunctions Remote ControlManual Lighting ProcedureLighting with Piezo Ignitor Inspecting BurnersTo turn gas off To appliance Pilot Flame PatternBurner Injector Holder Air Inlet Hole Cleaning MaintenanceBurner Flame Pattern Injector Holder on Front Burner Tube Observed Problem Possible Cause Remedy TroubleshootingSee Cleaning and Mainte Gas leak. See Warning Bad module Replace moduleIdentifying error signals from receiver Wiring DiagramAccessories Replacement PartsService Hints Technical ServiceModels VF-18N-MHD, VF-18P-MHD, VF-24N-MHD and VF-24P-MHD Illustrated Parts BreakdownParts List Limited Warranty VENT-FREE GAS LOG Heaters Warranty InformationKeep this Warranty