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

VENTILA VENTILA VENTILATION & COMB
VENTILA VENTILA
W W W W W ARNING: ARNING: ARNING: ARNING: ARNING:
BE OBSTRUCTED.
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 and venting.
2. When a Starfire 3 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 Starfire 3 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
TION & COMB TION & COMBUSTION TION & COMB
TION & COMB
AIR OPENINGS TO COMBUSTION AREA MUST NOT
BY FOLLOWING THE CHART BELOW, ADEQUATE
COMBUSTION AIR REQUIREMENTS
(Minimum Opening Requirements)
*
UNCONFINED AREA
Inside
Combustion
Air 1 IN.
2
/1000 BTU/HR
(See Fig 1)
(MIN. 100 IN
19 100
28 140
35 175
42 210
49 245
56 280
USTION USTION USTION AIR
USTION
**
Outside Combustion Air
VERTICAL
DUCTS
2
1 IN.
/4000 BTU/HR
) (See Fig 2 & 3)
2
23
35
44
53
61
61
PAGE 3
AIR AIR AIR
AIR
CONFINED AREA
HORIZONTAL
DUCTS
1 IN.
2
/2000 BTU/HR
(See Fig 4)
46
70
88
106
122
140
2