Vermont Casting VL18LP, VL24LP, VL21LP manual Installation Instructions

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WARNING: Do not allow fans to blow directly into the fireplace. Avoid any drafts that alter burner flame patterns.

WARNING: Do not use a blower insert, heat ex- changer insert or other accessory not approved for use with this gas logset.

Do not burn solid fuels in a fireplace where an unvented gas room heater or logset is installed.

Any outside air ducts and/or ashdumps in the fireplace must be permanently closed at time of appliance installation.

Installation Instructions

Preparing the Fireplace

Gas Line Preparation

Before connecting the appliance, turn off all gas appli- ances. Close the main gas valve at the gas meter or appliances. Close the main gas valve at the gas meter or LP tank. Make certain there is good ventilation where the installation will be made. Installation should comply with all applicable building codes and ANSI Z223.1/ NFPA 54, latest edition. Use LP gas-resistant pipe com- pound to seal threaded joints.

Installation to Existing Gas Line

There should be a manual ON/OFF valve within easy reach of the appliance. If not, before installation of the appliance make certain a valve is installed. There may be a second valve on the line close to the point where the fireplace line branches off the main gas supply line. During installation, make certain this valve is OFF.

Manufactured Fireplace Preparation

Refer to the manufacturer’s fireplace installation manual for the specific method of running the gas line into the fireplace. The following method is typical of most manu- factured fireplaces.

Insert a 1/2” gas pipe through the gas line tube provided by the manufacturer, from outside the fireplace, as marked by the manufacturer. An ON/OFF valve should be placed within easy reach of the appliance. After the gas supply is installed, reinstall the insulation removed from the gas line tube, and pack it around the pipe, to prevent cold air entry and to protect the gas line. (Fig. 3)

NOTE: The gas pipe should not come into contact with any wood structure until it has reached a point at least one (1) inch away from the fireplace side. (Fig. 3)

Fireplace Top View

 

Hole in Outer Casing

 

 

1"

Gas Line

Supply

Tube

Line

Ceramic

Repack

Knockout

Insulation

Hole in

 

Outer

 

Casing

 

 

Ceramic

 

Knockout

 

(Both Sides)

FP560

 

Fig. 3 Gas line installation - factory-built fireplaces.

Masonry Fireplace Installation

Preparation

A 1/2 inch gas supply line must be supplied to the firebox. In most cases, this will require drilling a gas line access hole through the masonry wall. The gas supply line should then be sealed in the access hole with mor- tar. The gas supply line should also have a valve within easy reach of the appliance. Use only N.P.T. black iron gas line. (Do not use cast-iron pipe.)

Clean the fireplace and chimney (if used) of any ashes, soot, creosote or obstructions. This will minimize any smell from the fireplace. We recommend cleaning by a chimney sweep.

Flue Damper Preparation

The vented fireplace damper should be fully opened when operating the appliance as a vented log set. A damper stop clamp with set screw is provided as a means to prevent full closure of the fireplace damper blade. The clamp is designed to prevent accidental closure of the damper when in use. If the damper stop cannot be installed, a permanent damper stop that will keep the damper open a minimum of 1¹⁄₂” should be installed.

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Contents What to do if YOU Smell GAS R N I N GT I C E General InformationHigh Elevations Installation RequirementsPressure Test Points Odor During OperationPlanning Installation PrecautionsDetermine If You Have a Confined Or Unconfined Space Fresh Air Requirements for Combustion and VentilationProvide for Adequate Ventilation Unusually Tight ConstructionVentilaton options for confined spaces Installation Instructions Installation Instructions Damper Stop InstallationDo not Test for Leaks with AN Open Flame Burner Assembly LocationGas Line Connection Connection to AN Unregulated LP Tank can Cause AN ExplosionWithout Hood Positioning the LogsFireplace Screen ClearancesVL24 log placement To Turn Off Gas To Heater Lighting and Operating InstructionsLogs can GET Very HOT. Handle only When Cool When Used as a Heating ApplianceMaintenance and Safeguards VL System MaintenanceVL18 Symptom Possible Causes Corrective Action TroubleshootingVL18/21/24 Standard Vent Free Gas Logs VL18/21/24 Standard Vent Free Gas Logs Description Model No AccessoriesLimited 2/20 Year Warranty CFM Corporation