AIR FOR COMBUSTION

AND VENTILATION

Continued

VENTILATION AIR

Ventilation Air From Inside Building

This fresh air would come from an adjoining un- confined space. When ventilating to an adjoining unconfined space, you must provide two perma- nent 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 4). You can also remove door into adjoining room (see option 3, Figure 4). Follow the National Fuel Gas Code ANSI Z223.1/NFPA 54, 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.

INSTALLATION

NOTICE: This heater is intended for use as supplemental heat. Use this heater along with your primary heating system. Do not install this heater as your pri- mary heat source. If you have a central heating system, you may run system’s circulating blower while using heater. This will help circulate the heat throughout the house. In the event of a power

Ventilation

 

Grills

 

Into Adjoining

Or

Room,

Remove

Option 1

Door into

 

 

Adjoining

 

Room,

 

Option

 

3

12"

Ventilation Grills

Into Adjoining Room,

Option 2

outage, you can use this heater as your primary heat source.

WARNING: A qualified ser- vice person must install firebox. Follow all local codes.

12"

Figure 4 - Ventilation Air from Inside

Building

Ventilation Air From Outdoors

Provide extra fresh air by using ventilation grills or ducts. You must provide two permanent 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 ANSI Z223.1/NFPA 54, Section 5.3, Air for Combustion and Ventilation for required size of ventilation grills or ducts.

 

Outlet

Ventilated

 

Attic

 

Air

 

 

Outlet

 

 

Air

 

To Attic

 

 

 

 

To

 

 

Crawl

Inlet

 

Space

 

 

Air

 

 

 

Inlet Air

Ventilated

 

Crawl Space

 

 

Figure 5 - Ventilation Air from Outdoors

WARNING: Never install the firebox

•in a bedroom or bathroom

•in a recreational vehicle

•where curtains, furniture, clothing, or other flammable objects are less than 42 inches from the front, top, or sides of the firebox

•in high traffic areas

•in windy or drafty areas

WARNING: Never install the firebox

•in a bedroom or bathroom

•in a recreational vehicle

•where curtains, furniture, clothing, or other flammable objects are less than 42 inches from the front, top, or sides of the firebox

•in high traffic areas

•in windy or drafty areas

8

www.desatech.com

105604-01H

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Vanguard Heating FB32CA Installation, Ventilation AIR, Ventilation Air From Inside Building, Ventilation Air From Outdoors
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NLFB32NC, NLFB32C, FB32CA, FB32NCA specifications

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