Desa VP5D Ventilation AIR, Ventilation Air From Inside Building, Ventilation Air From Outdoors

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® VP5D AND VP10A

PROPANE/LP GAS HEATERS

AIR FOR COMBUSTION AND VENTILATION

Continued

VENTILATION AIR

Ventilation Air From Inside Building

This fresh air would come from an adjoining unconfined space. When ventilating to an adjoining unconfined space, you must pro- vide two permanent openings: one within 12" of the ceiling and one within 12" of the floor on the wall connecting the two spaces (see options 1 and 2, Figure 2). You can also remove door into adjoining room (see op-

Ventilation

 

Grills

Or

into Adjoining

Remove

Room,

Door into

Option 1

Adjoining

 

Room,

 

Option 3

12"

Ventilation Grills

Into Adjoining Room,

Option 2

tion 3, Figure 2). Follow the National Fuel Gas Code NFPA 54/ANS Z223.1, Section 5.3, Air for Combustion and Ventilation for required size of ventilation grills or ducts.

WARNING: Rework work- sheet, adding the space of the adjoining unconfined space. The combined spaces must have enough fresh air to supply all appliances in both spaces.

Ventilation Air From Outdoors

Provide extra fresh air by using ventilation grills or ducts. You must provide two per- manent openings: one within 12" of the ceiling and one within 12" of the floor. Connect these items directly to the outdoors or spaces open to the outdoors. These spaces include attics and crawl spaces. Follow the National Fuel Gas Code NFPA 54/ANS Z223.1, Section 5.3, Air for Combustion and Ventilation for required size of ventilation grills or ducts.

IMPORTANT: Do not provide openings for inlet or outlet air into attic if attic has a thermostat-controlled power vent. Heated air entering the attic will activate the power vent.

12"

Figure 2 - Ventilation Air from Inside Building

Ventilated

Outlet Attic

Air

Outlet

 

Air

To Attic

 

To

Crawl

Space

Inlet

Air

Inlet Air

 

Ventilated

 

 

Crawl Space

 

 

Figure 3 - Ventilation Air from Outdoors

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Contents OWNER’S Operation and Installation Manual What to do if YOU Smell GASSafety Information PROPANE/LP GAS HeatersLocal Codes Product FeaturesProduct Identification UnpackingUnusually Tight Construction AIR for Combustion and VentilationProviding Adequate Ventilation Confined and Unconfined SpaceAIR for Combustion Ventilation Determining FRESH-AIR Flow for Heater LocationDetermining if You Have a Confined or Unconfined Space Ventilation AIR Ventilation Air From Inside BuildingVentilation Air From Outdoors Installing Heater to Wall InstallationInstallation Items Locating HeaterPlacing Heater On Mounting Screws Installing Two Mounting ScrewsInstalling Bottom Mounting Screw Removing Front Panel Of HeaterConnecting to GAS Supply External Regulator With VentPressure Testing Heater Gas Connections For Your Safety Read Before LightingPressure Testing Gas Supply Piping System Operating HeaterTo Select Heating Level Manual Lighting ProcedureLighting Instructions To Turn OFF GAS To ApplianceCleaning and Maintenance Inspecting BurnerTroubleshooting Observed Problem Possible Cause RemedyVice person Gas leak. See Warning statement at Parts List Illustrated Parts BreakdownVP5D ODS/PILOT VP10A ODS/PILOT Service Hints SpecificationsReplacement Parts Service Publications Technical104273 Warranty Information