Technical Information

BLOWER PERFORMANCE SPECIFICATIONS
9
*MVM971005CNA
Cooling Speed
(@ .1" - .8" w.c. ESP)
*MVM971005CNA
Heating Speed
(@ .1" - .5" w.c. ESP; Rise Range: 35 - 65°F)
Ta p Ad ju st
High-Stage
CFM
Low-Stage
CFM
Tap Adju st
High-Stage
CFM
Rise
(°F)
A
Minus 10% 738 508
A
Minus 10% 1,636 55
Normal 820 564 Normal 1,818 49
Plus 10% 902 620 Plus 10% 2,000 45
B
Minus 10% 1,020 706
C
Minus 10% 1,683 53
Normal 1,133 784 Normal 1,870 48
Plus 10% 1,246 862 Plus 10% 2,057 44
C
Minus 10% 1,318 884
D
Minus 10% 1,719 52
Normal 1,464 982 Normal 1,910 47
Plus 10% 1,610 1,080 Plus 10% 2,101 43
D
Minus 10% 1,562 1,133
D
Minus 10% 1,761 51
Normal 1,736 1,259 Normal 1,957 46
Plus 10% 1,910 1,385 Plus 10% 2,153 42
*MVM971205DNA
Cooling Speed
(@ .1" - .8" w.c. ESP)
*MVM971205DNA
Heating Speed
(@ .1" - .5" w.c. ESP; Rise Range: 35 - 65°F)
Ta p A dju st
High-Stage
CFM
Low-Stage
CFM
Ta p A dju st
High-Stage
CFM
Rise
(°F)
A
Minus 10% 780 492
A
Minus 10% 1,702 63
Normal 867 547 Normal 1,891 57
Plus 10% 954 602 Plus 10% 2,080 52
B
Minus 10% 1,044 748
C
Minus 10% 1,746 62
Normal 1,160 831 Normal 1,940 56
Plus 10% 1,276 914 Plus 10% 2,134 51
C
Minus 10% 1,320 918
D
Minus 10% 1,771 61
Normal 1,467 1,020 Normal 1,968 55
Plus 10% 1,614 1,122 Plus 10% 2,165 50
D
Minus 10% 1,719 1,150
D
Minus 10% 1,825 59
Normal 1,910 1,278 Normal 2,028 53
Plus 10% 2,101 1,406 Plus 10% 2,231 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.