Carrier 100 Series - Unconfined Space; Type B-1 Double-Wall Vent

13/16
11/16
NOTE: 2 ADDITIONAL 7/8 DIA KNOCKOUTS
ARE LOCATED IN THE TOP PLATE
NOTH: AIR DELIVERY ABOVE 1800 CFM REQUIRES THAT BOTH SIDES OF FURNACE
BE USED, OR A COMBINATION OF 1 SIDE AND BOTTOM, OR BOTTOM ONLY FOR
RETURN AIR.
Fig. 1—Dimensional Drawing
14-1/2
A88367
Table 2—Dimensions (In.)
UNIT SIZE A
D
E
VENT CONN SHIP. WT
040-08 14-3/16
12-9/16
12-11/16
4
122
040-12
14-3/16 12-9/16
12-11/16 4 124
060-08
14-3/16 12-9/16
12-11/16 4
132
060-12
14-3/16
12-9/16
12-11/16
4
134
080-14
17-1/2
15-7/8 16 4
150
080-16 21
19-3/8 19-1/2
4 154
100-12
17-1/2
15-7/8
16 4
160
100-16 21
19-3/8
19-1/2 4
166
100-20 24-1/2
22-7/8
23 4
184
120-16 21
19-3/8
19-1/2
5
178
120-20 24-1/2
22-7/8
23/
5 194
140-20 24-1/2
22-7/8
23
5 204
A CAUTION
Air for combustion must not be contaminated by halogen
compounds, which include fluoride, chloride, bromide and
iodide. These elements are found in aerosol sprays, deter¬
gents, bleaches, cleaning solvents, salts, air fresheners, and
other household products.
All fuel-burning equipment must be supplied with air for combus¬
tion of the fuel. Sufficient air MUST be provided to insure there
will not be a negative pressure in the equipment room or space. In
addition, a positive seal MUST be made between the furnace
cabinet and the return-air duct to prevent pulling air from the
burner area and draft safeguard opening.
A CAUTION
The operation of exhaust fans, kitchen ventilation fans,
clothes dryers, or fireplaces could create a negative air
pressure condition at the furnace. Make-up air must be
provided for the ventilation devices, in addition to that
required by the furnace.
Combustion air requirements are determined by whether the
furnace is in an UNCONFINED or CONFINED space. A confined
space is one whose volume is less than 50 cubic ft per 1000 Btuh
of the total input rating for all appliances installed in that space.
UNCONFINED SPACE
An unconfined space must have at least 50 cubic ft for each 1000
Btuh of input for all the appliances (i.e. furnaces, clothes dryer,
water heaters, etc.) in the space.