Technical Information

BLOWER PERFORMANCE SPECIFICATIONS
13
Notes
All furnaces ship as high speed for cooling. Installer must adjust blower speed as needed.
For most jobs, about 400 CFM per ton when cooling is desirable.
*CVC961205DNA
Cooling Speeds
( @ .1" - .8" w.c. ESP)
*CVC961205DNA
Heating Speed
(@ .1" - .5" w.c. ESP; Rise Range: 35 - 65°F)
Ta p A dj us t
High-Stage
CFM
Low-Stage
CFM
Tap Ad just
High-Stage
CFM
Low-Stage
CFM
Rise
A
Minus 10% 769 486
A
Minus 10% 1,570 1,156
n/a
Minus 5% 811 513 Minus 5% 1,657 1,220
64
Normal 854 540 Normal 1,744 1,284
61
Plus 5% 897 567 Plus 5% 1,831 1,348
58
Plus 10% 939 594 Plus 10% 1,918 1,412
56
B
Minus 10% 1,011 783
B
Minus 10% 1,644 1,179
65
Minus 5% 1,067 827 Minus 5% 1,736 1,245
61
Normal 1,123 870 Normal 1,827 1,310
58
Plus 5% 1,179 914 Plus 5% 1,918 1,376
56
Plus 10% 1,235 957 Plus 10% 2,010 1,441
53
C
Minus 10% 1,259 900
C
Minus 10% 1,674 1,215
64
Minus 5% 1,329 950 Minus 5% 1,767 1,283
60
Normal 1,399 1,000 Normal 1,860 1,350
57
Plus 5% 1,469 1,050 Plus 5% 1,953 1,418
55
Plus 10% 1,539 1,100 Plus 10% 2,046 1,485
52
D
Minus 10% 1,624 1,112
D
Minus 10% 1,726 1,249
62
Minus 5% 1,714 1,173 Minus 5% 1,822 1,319
59
Normal 1,804 1,235 Normal 1,918 1,388
56
Plus 5% 1,894 1,297 Plus 5% 2,014 1,457
53
Plus 10% 1,984 1,359 Plus 10% 2,110 1,527
51