Carbon Monoxide - Carrier 140/E Series Installation, Start--Up, Operating, And Service And Maintenance

CIRCULATING AIR
DUCTS
I I I
I I I
I I I
INTERIOR
HEATED
SPACE
CIRCULATING AIR DUCTS
[_ VENTTHROUGH ROOF
I I
I I
I I
I I
12" MAX (305mm)
z ,
o
------1 SO IN.
PER 1000
BTUH* IN DOOR
O R WALL
UNCONFINED
SPACE
6" MtN (152mm)
(FRONT)0
1 SQ IN.
PER 1000
BTUH* IN DOOR
-- OR WALL
L 12" MAX (305ram)
PER 4000
OUTDOORS BTUH*
*Minimum dimensions of 3-in. (76 mm).
Note: Use any of the following combinations of openings:
A&BC&DD&EF&G
A03174
Fig. 7 - Air for Combustion, Ventilation, and Dilution for
Outdoors
The opening shall commence within 12 in. (300 ram) of the
ceiling. Appliances in the space shall have clearances of at least 1
in. (25 ram) from the sides and back and 6 in. (150 ram) from the
front. The opening shall directly communicate with the outdoors
or shall conmmnicate through a vertical or horizontal duct to the
outdoors or spaces (crawl or attic) that freely communicate with
the outdoors.
Indoor Combustion Air@ NFPA & AGA Standard and
Known-Air-Infiltration Rate Methods
Indoor air is permitted for combustion, ventilation, and dilution,
if the Standard or Known-Air-Infiltration Method is used.
CARBON MONOXIDE POISONING HAZARD
Failure to follow this warning could result in death and/or
personal iniury.
Many homes require air to be supplied from outdoors for
furnace combustion, ventilation, and dilution of flue gases.
The furnace combustion air supply must be provided in
accordance with this instruction manual.
* Minimum opening size is 100 sq in. (64516 sq, mm) with minimum
dimensions of 3 in. (76 mm)
1- Minimum of 3 in. (76 mm) when type-B1 vent is used.
A03175
Fig. 8 - Air for Combustion, Ventilation, and Dilution from
Indoors
The Standard Method:
1. The space has no less volume than 50 cubic feet per 1,000
Btuh of the maximum input ratings for all gas appliances
installed in the space and
2. The air infiltration rate is not known to be less than 0.40
air changes per hour (ACH).
The Known Air Infiltration Rate Method shall be used, if the
infiltration rate is known to be:
1. Less than 0.40 ACH and
2. Equal to or greater than 0.10 ACH
Infiltration rates greater than 0.60 ACH shall not be used. The
minimum required volume of the space varies with the number of
ACH and shall be determined per Table 3 or Equations 1 and 2.
Determine the minimum required volume for each appliance in
the space and add the volumes together to get the total n_ininmm
required volume for the space.