Carrier bryant 830CA, User Manual, Page: 19 / 40

830CA: Installation, Start–Up, Operating and Service and Maintenance Instructions
Manufacturer reserves the right to change, at any time, specifications and designs without notice and without obligations.
19
3. Vent connectors serving Category I furnaces shall not be connected
into any portion of a mechanical draft system operating under
positive pressure.
4. Do not vent this appliance with any solid fuel burning appliance.
5. Category I furnaces must be vented vertically or nearly vertically
unless equipped with a listed power venter.
6. Do not vent this appliance into an unlined masonry chimney. Refer
to Chimney Inspection Chart, Fig. 32 .
MASONRY CHIMNEY REQUIREMENTS
If a clay tile-lined masonry chimney is being used and it is exposed to
the outdoors below the roof line, relining might be required. Chimneys
shall conform to the Standard for Chimneys, Fireplaces, Vents, and Solid
Fuel Burning Appliances current edition of ANSI/NFPA 211 and must
be in good condition.
USA - Refer to Sections 13.1.8 and 13.2.20 of the current edition of
NFGC NFPA54/ANSI Z223.1 or the authority having jurisdiction to
determine whether relining is required. If relining is required, use a
properly sized listed metal liner, Type-B vent, or a listed alternative
venting design.
NOTE: See the current edition of NFPA54/ANSI Z223.1, 13.1.8 and
13.2.20 regarding alternative venting design and the Exception.
Table 7 – Minimum Allowable Input Rating of Space-Heating
Appliance in Thousands of BTUH per Hour
This furnace is permitted to be vented into a clay tile-lined masonry
chimney that is exposed to the outdoors below the roof line, provided:
1. Vent connector is Type-B double-wall, and
2. This furnace is common vented with at least 1 draft hood equipped
appliance, and
3. The combined appliance input rating is less than the maximum
capacity given in Table 8 , and
4. The input rating of each space heating appliance is greater than the
minimum input rating given in Table 7 for the local 99% Winter
Design Temperature. Chimneys having internal areas greater than
38 square inches require furnace input ratings greater than the input
ratings of these furnaces. See footnote at bottom of Table 7 , and
5. The authority having jurisdiction approves.
If all of these conditions cannot be met, an alternative venting design
shall be used, a listed chimney-lining system, or a Type-B common vent.
Inspections before the sale and at the time of installation will determine
the acceptability of the chimney or the need for repair and/or (re)lining.
Refer to the Fig. 32 to perform a chimney inspection. If the inspection of
a previously used tile-lined chimney:
Shows signs of vent gas condensation, the chimney should be relined in
accordance with local codes and the authority having jurisdiction. The
chimney should be relined with a listed metal liner, or a Type-B vent
shall be used to reduce condensation. If a condensate drain is required by
local code, refer to the current edition of NFGC NFPA54/ANSI Z223.1,
Section 12.10 for additional information on condensate drains.
Indicates the chimney exceeds the maximum permissible size in the
tables, the chimney should be rebuilt or relined to conform to the
requirements of the equipment being installed and the authority having
jurisdiction.
A chimney without a clay tile liner, which is otherwise in good
condition, shall be rebuilt to conform to current edition of ANSI/NFPA
211 or be lined with a UL listed metal liner or UL listed Type-B vent.
Relining with a listed metal liner or Type-B vent is considered to be a
vent-in-a-chase.
If a metal liner or Type-B vent is used to line a chimney, no other
appliance shall be vented into the annular space between the chimney
and the metal liner.
Exterior Masonry Chimney FAN + NAT
Installations with Type-B Double Wall Vent
Connectors ©FPA & AGA
Table 8 – Combined Appliance Maximum Input Rating in
Thousands of BTUH per Hour
APPLIANCE APPLICATION REQUIREMENTS
Appliance operation has a significant impact on the performance of the
venting system. If the appliances are sized, installed, adjusted, and
operated properly, the venting system and/or the appliances should not
suffer from condensation and corrosion. The venting system and all
appliances shall be installed in accordance with applicable listings,
standards, and codes.
The furnace should be sized to provide 100 percent of the design heating
load requirement plus any margin that occurs because of furnace model
size capacity increments. Heating load estimates can be made using
approved methods available from Air Conditioning Contractors of
America (Manual J); American Society of Heating, Refrigerating, and
Air-Conditioning Engineers; or other approved engineering methods.
Excessive oversizing of the furnace could cause the furnace and/or vent
to fail prematurely. When a metal vent or metal liner is used, the vent
VENT HEIGHT
FT (M)
INTERNAL AREA OF CHIMNEY
IN
2
. (MM
2
)
12 (7741)
19
(12258)
28
(18064)
38
(24516)
Local 99% Winter Design
Temperature: 17 to 26°F
*
(-8 to -3°C)
*. The 99.6% heating db temperatures table found in the Appendix of the
Climatic Design Information chapter of the 2017 ASHRAE Fundamentals
Handbook.
6 (1.8) 0 55 99 141
8 (2.4) 52 74 111 154
10 (3.0) NR 90 125 169
15 (4.6) NR NR 167 212
20 (6.1) NR NR 212 258
30 (9.1) NR NR NR 362
Local 99% Winter Design
Temperature: 5 to 16°F
*
(-15 to -9°C)
6 (1.8) NR 78 121 166
8 (2.4) NR 94 135 182
10 (3.0) NR 111 149 198
15 (4.6) NR NR 193 247
20 (6.1) NR NR NR 293
30 (9.1) NR NR NR 377
Local 99% Winter Design
Temperature: -10 to 4°F
*
(-23 to -16°C)
6 (1.8) NR NR 145 196
8 (2.4) NR NR 159 213
10 (3.0) NR NR 175 231
15 (4.6) NR NR NR 283
20 (6.1) NR NR NR 333
30 (9.1) NR NR NR NR
Local 99% Winter Design
Temperature: -11°F (-24°C) or lower
Not recommended for any vent configuration.
VENT HEIGHT
FT. (M)
INTERNAL AREA OF CHIMNEY
IN
2
(MM
2
)
12
(7741)
19
(12258)
28
(18064)
38
(24516)
6 (1.8) 74 119 178 257
8 (2.4) 80 130 193 279
10 (3.0) 84 138 207 299
15 (4.5) NR 152 233 334
20 (6.0) NR NR 250 368
30 (9.1) NR NR NR 404