Payne PG8MAA Series G Installation, Start-Up, Operating And Service And Maintenance Instructions page 28

Table 8—Exterior Masonry Chimney Fan + Nat Installations
with Type- -B Double Wall Vent Connectors ENFPA & AGA
Combined Appliance Maximum Input
Rating in Thousands of Btuh per Hour
INTERNAL AREA OF CHIMNEY
VENT HEIGHT
FT. (M)
12
(7741)
6 (1.8) 74
8 (2.4) 80
10 (3.0) 84
15 (4.5) NR
20 (6.0) NR
30 (9.1) NR
Table 9—Minimum Allowable Input Rating of Space- -Heat-
ing Appliance in Thousands of Btuh per Hour
INTERNAL AREA OF CHIMNEY
VENT HEIGHT
FT. (M)
12
(7741)
Local 99% Winter Design Temperature: 17 to 26 degrees F
6 0
8 52
10 NR
15 NR
20 NR
30 NR
Local 99% Winter Design Temperature: 5 to 16 degrees F*
6 NR
8 NR
10 NR
15 NR
20 NR
30 NR
Local 99% Winter Design Temperature: --- 10 to 4 degrees F*
6 NR
8 NR
10 NR
15 NR
20 NR
30 NR
Local 99% Winter Design Temperature: --- 11
lower
Not recommended for any vent configuration.
*The 99.6% heating db temperatures found in the 1997 or 2001 ASHRAE
Fundamentals Handbook, Climatic Design Information chapter, Table 1A
(United States) or the 2005 ASHRAE Fundamentals handbook, Climatic
Design Information chapter, and the CD ---ROM included with the 2005
ASHRAE Fundamentals Handbook.
SQ. IN. (SQ. MM)
19 28 38
(12258) (18064) (24516)
119 178 257
130 193 279
138 207 299
152 233 334
NR 250 368
NR NR 404
SQ. IN. (SQ. MM)
19 28 38
(12258) 18064) (24516)
55 99 141
74 111 154
90 125 169
NR 167 212
NR 212 258
NR NR 362
78 121 166
94 135 182
111 149 198
NR 193 247
NR NR 293
NR NR 377
NR 145 196
NR 159 213
NR 175 231
NR NR 283
NR NR 333
NR NR NR
_F (16_C)
or
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