Vanguard Heating 24, 36" Flame Oak Log, 18, 30 installation manual AIR for Combustion Ventilation

Page 5

OWNER’S MANUAL

AIR FOR

COMBUSTION AND

VENTILATION

Continued

DETERMINING FRESH-AIR FLOW FOR HEATER LOCATION

Determining if You Have a Confined or Unconfined Space

Use this work sheet to determine if you have a confined or unconfined space.

Space: Includes the room in which you will install heater plus any adjoining rooms with doorless passageways or ventilation grills between the rooms.

1.Determine the volume of the space (length x width x height).

Length x Width x Height = _____________ cu. ft. (volume of space)

Example: Space size 20 ft. (length) x 16 ft. (width) x 8 ft. (ceiling height) = 2560 cu. ft. (volume of space)

If additional ventilation to adjoining room is supplied with grills or openings, add the volume of these rooms to the total volume of the space.

2.Divide the space volume by 50 cubic feet to determine the maximum Btu/Hr the space can support.

_______________ (volume of space) ÷ 50 cu. ft. = (maximum Btu/Hr the space can support)

Example: 2560 cu. ft. (volume of space) ÷ 50 cu. ft. = 51.2 or 51,200 (maximum Btu/Hr the space can support)

3.Add the Btu/Hr of all fuel burning appliances in the space.

Vent-free heater

 

_____________ Btu/Hr

Example:

 

 

 

Gas water heater*

 

_____________ Btu/Hr

Gas water heater

 

40,000

Btu/Hr

Gas furnace

 

_____________ Btu/Hr

Vent-free heater

+

39,000

Btu/Hr

Vented gas heater

 

_____________ Btu/Hr

 

 

 

 

 

Total

=

79,000

Btu/Hr

Gas fireplace logs

 

_____________ Btu/Hr

 

 

 

 

 

Other gas appliances* +

_____________ Btu/Hr

 

 

 

 

Total

=

_____________ Btu/Hr

 

 

 

 

*Do not include direct-vent gas appliances. Direct-vent draws combustion air from the outdoors and vents to the outdoors.

4.Compare the maximum Btu/Hr the space can support with the actual amount of Btu/Hr used.

____________ Btu/Hr (maximum the space can support)

____________ Btu/Hr (actual amount of Btu/Hr used)

Example: 51,200 Btu/Hr (maximum the space can support) 79,000 Btu/Hr (actual amount of Btu/Hr used)

The space in the above example is a confined space because the actual Btu/Hr used is more than the maximum Btu/Hr the space can support. You must provide additional fresh air. Your options are as follows:

A.Rework worksheet, adding the space of an adjoining room. If the extra space provides an unconfined space, remove door to adjoin- ing room or add ventilation grills between rooms. See Ventilation Air From Inside Building, page 6.

B.Vent room directly to the outdoors. See Ventilation Air From Outdoors, page 6.

C.Install a lower Btu/Hr heater, if lower Btu/Hr size makes room unconfined.

If the actual Btu/Hr used is less than the maximum Btu/Hr the space can support, the space is an unconfined space. You will need no additional fresh air ventilation.

WARNING: If the area in which the heater may be operated is smaller than that defined as an unconfined space or if the building is of unusually tight construction, provide adequate combustion and ventilation air by one of the methods described in the National Fuel Gas Code, ANS Z223.1, 1992, Section 5.3 or applicable local codes.

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Contents What to do if YOU Smell GAS OWNER’S Operation and Installation Manual18, 24, 30, and 36 Remote Ready Model Save this manual for future referenceVanguard FLAME-MAX Unvented PROPANE/LP GAS LOG Heater Safety InformationProduct Identification Local Codes Unpacking Product FeaturesRemote Control Accessories Providing Adequate Ventilation AIR for Combustion and VentilationUnusually Tight Construction Confined and Unconfined SpaceDetermining if You Have a Confined or Unconfined Space AIR for Combustion VentilationDetermining FRESH-AIR Flow for Heater Location Ventilation Air From Inside Ventilation AIRBuilding Ventilation Air From OutdoorsInstallation Clearances InstallationCheck GAS Type Minimum Fireplace Clearance to Combustible MaterialsMinimum Noncombustible Material Clearances If Not Using MantelIf Using Mantel Mantel Clearances Determining Minimum Mantel Clear- ance When using a HoodFloor Clearances Determining Minimum Mantel ClearanceInstalling Heater Base Assembly Installing Damper Clamp Accessory for Vented OperationInstallation Items Needed Chimney Minimum Permanent Height ft Flue Opening sq. insAttaching Flexible Gas Hose to Heater Connecting to GAS SupplyPressure Testing Gas Supply Piping System Pressure Testing Heater Gas ConnectionsChecking GAS Connections Test Pressures In Excess Of 1/2 PsigInstalling Golden Oak One-Piece Log Set Installing LogsLighting Instructions For Your Safety Read Before LightingOperating Heater Optional Remote Operation Manual Lighting ProcedureTo Turn OFF GAS To Appliance Pilot Flame Pattern Inspecting BurnersBurner Primary AIR Holes Main BurnerObserved Problem Possible Cause TroubleshootingObserved Problem Possible Cause Remedy Top Gas leak. See Warning statement atSpecifications Wiring Diagram Replacement PartsService Hints Technical ServiceLogs Cleaning and MaintenanceCleaning Burner Injector Holder and Pilot AIR Inlet Hole Illustrated Parts Breakdown VYD18PR, VYD24PR, VYD30PR, and VYD36PR Parts ListAccessories 104309 Warranty Information