Ventilation And Combustion Air - UTICA BOILERS Starfire 3 Installation Manual And Operating Instructions

VENTILA VENTILA VENTILATION & COMB
VENTILA VENTILA
WARNING: WARNING:
WARNING: WARNING: WARNING:
BE OBSTRUCTED. BY FOLLOWING THE CHART BELOW , ADEQUATE
COMBUSTION AIR CAN BE MAINTAINED.
Outside
Combustion
BTU/HR Air 1 IN.
INPUT /5000 BTU/HR
(Paragraph 4)
91,000
140,000
175,000
210,000
245,000
280,000
*
Unconfined area: A space whose volume is not less than 50 cubic feet per 1000
BTU per hour of all appliances installed in that space (cubic feet of space = height x
width x length).
**
Confined area: A space whose volume is less than 50 cubic feet per 1000 BTU
per hour of all appliances installed in that space (cubic feet of space = height x width x
length).
1. Ventilation of boiler room must be adequate enough to provide sufficient air to
properly support combustion.
2. When a boiler is located in an unconfined space in a building of conventional
construction frame, masonry or metal, infiltration normally is adequate to provide air for
combustion and ventilation. However, in any building which has been altered to conserve
energy or to minimize infiltration, the boiler area should be considered as a CONFINED
SPACE. If there is any doubt, install air supply provisions for combustion and ventilation in
accordance with section 5.3, Air for Combustion and Ventilation, of the NFPA 54 1988 code,
the recommendations that follow, or applicable provisions of the local building codes.
3. When a boiler is installed in an unconfined space, in a building of unusually tight
construction, air for combustion and room ventilation must be obtained from outdoors or
from spaces freely communicating with the outdoors. A permanent opening or openings
TION & COMB TION & COMBUSTION TION & COMB
TION & COMB
AIR OPENINGS TO COMBUSTION AREA MUST NOT
COMBUSTION AIR REQUIREMENTS
(Minimum Opening Requirements)
*
UNCONFINED AREA
Inside
Combustion
Air 1 IN.
2
/1000 BTU/HR
(See Fig 1)
(MIN. 100 IN
19
28
35
42
49
56
USTION USTION USTION AIR
USTION
Outside Combustion Air
VERT. DUCTS
1 IN.
2
/4000 BTU/HR
(See Fig 2 & 3
) Pages 5 & 6)
2
100 23
140 35
175 44
210 53
245 61
280 61
PAGE 3
AIR AIR AIR
AIR
**
CONFINED AREA
HORZ. DUCTS
1 IN.
2
/2000 BTU/HR
(See Fig 4
Page 6)
106
122
140
2
46
70
88