Vermont Casting BHDR36 Flame Characteristics, Inspecting the Venting System, Maintenance

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FLAME CHARACTERISTICS

It is important to periodically perform a visual check of the pilot and the burner flames. Com- pare them to the pictorials illustrated below (Fig. 70, 71 and 72). If any of the flames appear abnormal call a service person.

SIT PILOT

3/8" - 1/2"

Fig. 70

PSE PILOT

Fig. 71

Fig. 72

INSPECTING THE VENTING SYSTEM

This appliance venting system was designed and con- structed to develop a positive flow adequate to remove flue gases to the outside atmosphere.

Any foreign objects in the venting system, except those designed specifically for the venting system, may cause spillage of flue gases.

To inspect the venting system, make sure the main gas valve is off. Remove glass frame (See Glass Frame Removal Section). Using a flashlight, check the area above the baffle in the combustion dome. Clean if neces- sary.

MAINTENANCE

1.It is important to keep the burner and the burner compartment clean. This must be done periodically, at least once per season.

2.Clean the brass trim using a soft clean cloth, slightly dampened with lemon oil and buff with a soft clean cloth. Do NOT use brass polish or household cleaners as these products will damage the brass trim. Lemon oil can be obtained at supermarkets or hardware stores.

3.The optional FK24 fan does require periodic clean- ing. Check the area under the control door and in front of the fan and wipe or vacuum at least once a month during the operating season.

4.Contact your local representative to arrange an annual service program.

CLEANING THE STANDING PILOT

CONTROL SYSTEM

The burner and control system consists of:

burner tube

gas orifices

pilot assembly

thermopile

millivolt gas valve

 

Most of these components may require only an occasional checkup and cleaning and some may require adjustment. If repair is necessary, it should be performed by a qualified technician.

1.Turn off pilot light at gas valve side

2.Let fireplace cool if it has been running.

3.Remove glass. (see Glass Removal)

4.Remove logs.

LOGS MAY BE HOT

5.Vacuum burner compartment especially around orifice primary air openings.

6.Visually inspect pilot. Brush or blow away any dust or lint accumulation.

7.Reinstall logs.

8.Ignite pilot - see Operating Section of Manual.

8. Reinstall glass.

To obtain proper operation, it is imperative that the pilot and burner's flame characteristics are steady, not lifting or floating.

Typically, the top 3/8" or 1/2" of the thermopile should be engulfed in the pilot flame. See Fig. 70 or 71.

To adjust pilot burner (by a Qualified Service Representative)

1.Remove pilot adjustment cap.

2.Adjust pilot screw to provide properly sized flame.

3.Replace pilot adjustment cap.

The primary air shutter is set at factory and should only be adjusted (if necessary) by a qualified service person.

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Image 29 Contents
BHDR36 Table of Contents Locating Your GAS Fireplace Installation InstructionsFireplace Dimensions Mantels Mantel ChartClearance to Combustibles Framing and FinishingHearth GAS SpecificationsFinal Finishing Remote Switch Installation For RN/RP GAS Line InstallationGeneral Venting Information Termination Clearances Rear Venting Applications Rear Wall InstallationsVertical Sidewall Installations Vertical Sidewall Applications Sidewall Venting Graph HOW to USE the Vent GraphVent Sidewall Installation Ensure Pipes Are Vertical Through Roof Applications Below Grade InstallationsProceed to plumb for additional openings through Vertical Thru Roof InstallationCrimped END Venting Components Rear Venting Applications General Information on Assembling Twist Lock Vent Pipes190mm Vertical Sidewall Applications Vertical Sidewall InstallationsSee page 23 for Venting Requirements for Snorkels NON-COMBUSTIBLE Walls Hole opening must be Installation Below Grade InstallationsRise Vertical Through Roof ApplicationsVertical Through the Roof Installation Twist Lock Venting Components General Glass Information Glass CleaningLouvre Removal Glass Frame RemovalLava Rock Installation of LogsFlame Adjustment Maintenance Flame CharacteristicsCleaning the Standing Pilot Control System Inspecting the Venting SystemLighting and Operating Instructions Trouble Shooting the GAS Control System SIT 820 Nova Millivolt Valve Replacement Parts List Replacement Parts Optional FAN KIT FK24 Wiring InstructionsOptional BAY Window Installation Optional Remote Control Optional Screen KIT InstallationOptional Ceramic Refractory Installation
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