Ashley AGVF340, Инструкция по установке и эксплуатации

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1. Determine the volume of the space (length x width x height).
Length x Width x Height = _____________cu.ft.(volume of space)
EXAMPLE: 20 ft.(Length) x 16 ft.(Width) x 8 ft.(ceiling Height)=
2560 cu. ft. (volume of space)
If additional ventilation to adjoining room is supplied with grills or openings, add the volume of these
rooms to the total volume of the space.
2. Divide the space volume by 50 cubic feet to determine the maximum BTU/Hr the space can support.
_____________ (volume of space)/50 cu. ft. =maximum BTU/Hr the space can support
EXAMPLE: 2560 cu. ft. (volume of space /50 cu. Ft .= 51.2 or
51200 (maximum BTU/Hr the space can support)
3. Add the BTU/Hr of all fuel burning appliances in the space.
Vent-free heater BTU/Hr _______________ BTU/Hr
*Gas water heater BTU/Hr _______________ BTU/Hr
Gas furnace BTU/Hr _______________ BTU/Hr
Vented gas heater BTU/Hr _______________ BTU/Hr
Gas fireplace logs BTU/Hr _______________ BTU/Hr
Other gas appliance BTU/Hr +_______________ BTU/Hr
Total =_______________ BTU/Hr
Example:
Gas water heater 400000 BTU/Hr
Vent-free heater + 18000BTU/Hr
total = 58000 BTU/Hr
*Does not include direct-vent gas appliances. Direct-vent draws
combustion air from outdoors and vents to the outdoors.
4. Compare the maximum BTU/Hr the space can support with actual amount of BTU/Hr used.
_____________ BTU/Hr (maximum the space can support)
_____________ BTU/Hr (actual amount of BTU/Hr used)
Example: 51200 BTU/Hr (maximum the space can support)
58000 BTU/Hr (actual amount of BTU/Hr used)
Space in above example is unusually tight construction because actual BTU/Hr used is more than
maximum BTU/Hr the space can support. You must provide additional fresh air. Your options are as follows:
A. Rework worksheet, adding space of an adjoining room. If extra space provides an unconfined space,
remove door to adjoining room or add ventilation grills between rooms. See “Air For Combustion And
Ventilation Inside Building”
B. Vent room directly to the outdoors. See “Air For Combustion And Ventilation Outdoors ”
C. Install a lower BTU/Hr heater, if lower BTU/Hr size makes room unconfined.
If actual BTU/Hr used is less than the maximum BTU/Hr the space can support, space is an unconfined space.
You will need no additional fresh air ventilation.
WARNING: YOU MUST PROVIDE ADDITIONAL VENTILATION AIR IN UNUSUALLY TIGHT
CONSTRUCTION.