Technical Information

BLOWER PERFORMANCE SPECIFICATIONS
10
*
CVM970603BNA
Cooling Speed
(@ .1" - .8" w.c. ESP)
*
CVM970603BNA
Heating Speed
(@ .1" - .5" w.c. ESP; Rise Range: 35 - 65°F)
Tap Adju st
High-Stage
CFM
Low-Stage
CFM
Tap Ad ju st
High-Stage
CFM
Rise
(°F)
A
Minus 10% 590 390
A
Minus 10% 844 64
Normal 656 433 Normal 938 57
Plus 10% 722 476 Plus 10% 1,032 52
B
Minus 10% 711 487
C
Minus 10% 855 63
Normal 790 541 Normal 950 57
Plus 10% 869 595 Plus 10% 1,045 52
C
Minus 10% 875 617
D
Minus 10% 887 61
Normal 972 686 Normal 986 55
Plus 10% 1,069 755 Plus 10% 1,085 50
D
Minus 10% 1,076 725
D
Minus 10% 893 60
Normal 1,195 806 Normal 992 54
Plus 10% 1,315 887 Plus 10% 1,091 49
*CVM970803BNA
Cooling Speed
(@ .1" - .8" w.c. ESP)
*CVM970803BNA
Heating Speed
(@ .1" - .5" w.c. ESP; Rise Range: 35 - 65°F)
Tap Adju st
High-Stage
CFM
Low-Stage
CFM
Tap Adju st
High-Stage
CFM
Rise
(°F)
A
Minus 10% 562 365
A
Minus 10% 950 n/a
Normal 624 405 Normal 1,056 n/a
Plus 10% 686 446 Plus 10% 1,162 62
B
Minus 10% 727 494
B
Minus 10% 1,031 n/a
Normal 808 549 Normal 1,146 63
Plus 10% 889 604 Plus 10% 1,261 57
C
Minus 10% 895 610
C
Minus 10% 1,130 64
Normal 994 678 Normal 1,256 57
Plus 10% 1,093 746 Plus 10% 1,382 52
D
Minus 10% 1,059 706
D
Minus 10% 1,214 59
Normal 1,177 784 Normal 1,349 53
Plus 10% 1,295 862 Plus 10% 1,484 48
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.
•
CFM between .5" and .8" w.c. is tabulated for cooling purposes only.