UTICA BOILERS STARFIRE 3 STEAM, Руководство по установке и эксплуатации

Страница: 5 / 32

VENTILA VENTILA VENTILA VENTILA VENTILATION & COMB TION & COMB TION & COMB TION & COMB TION & COMBUSTION USTION USTION USTION USTION AIR AIR AIR AIR AIR
WARNING: WARNING:
WARNING: WARNING:
WARNING:
AIR OPENINGS TO COMBUSTION AREA MUST NOT
BE OBSTRUCTED. BY FOLLOWING THE CHART BELOW , ADEQUATE
COMBUSTION AIR CAN BE MAINTAINED.
COMBUSTION AIR REQUIREMENTS
(Minimum Opening Requirements)
*
UNCONFINED AREA
**
CONFINED AREA
Outside Inside Outside Combustion Air
Combustion Combustion VERT. DUCTS HORZ. DUCTS
BTU/HR Air 1 IN.
2
Air 1 IN.
2
1 IN.
2
1 IN.
2
INPUT /5000 BTU/HR /1000 BTU/HR /4000 BTU/HR /2000 BTU/HR
(Paragraph 4) (See Fig 1) (See Fig 2 & 3 (See Fig 4
(MIN. 100 IN
2
) Pages 5 & 6) Page 6)
91,000 19 100 23 46
140,000 28 140 35 70
175,000 35 175 44 88
210,000 42 210 53 106
245,000 49 245 61 122
280,000 56 280 61 140
*
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
PAGE 3