American Standard TMM5A0B24M21SAA, Installer'S Manual, Page: 9 / 12

The air distribution system has the greatest effect on airflow. The duct system is totally controlled by the contractor. For this reason, the contractor
should use only industry-recognized procedures.
Heat pump systems require a specified airflow. Each ton of cooling requires between 350 and 450 cubic feet of air per minute (CFM), or 400 CFM
nominally.
Duct design and construction should be carefully done. System performance can be lowered dramatically through bad planning or workmanship.
Air supply diffusers must be selected and located carefully. They must be sized and positioned to deliver air along the perimerter of the space. If
they are too small for their intended airflow, they become noisy. If they are not located properly, they cause drafts. Air grilles must be properly sized
to carry air back to the blower.If they are too small, they also cause noise.
The installers should balance the air distribution system to ensure proper quiet airflow to all rooms in the home. This ensures a comfortable living
space.
Airflow performance data is based on cooling performance with a coil and no filter in place. Select performance table for appropriate unit size
external static applied to unit allows operation within the minimum and maximum limits shown in table below for both cooling and electric heat
operation.
TMM5A0B24M21SAA
TMM5A0B30M21SAA
TMM5A0B36M31SAA
Airflow Performance(Standard CFM)
--- Shaded boxes represent airflow outside the required 300-450 cfm/ton.
NOTES:
9
0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8
TAP5 1014 961 925 877 836 777 742 685 637
TAP4-Factory
830 776 737 677 636 569 510 478 426
TAP3 814 773 724 680 626 556 509 464 426
*TAP2 683 575 475 391 324 284 227 171 /
TAP1 655 540 388 227 147 / / / /
TAP5 1252 1214 1182 1144 1113 1072 1019 957 883
TAP4 1149 1117 1077 1042 1007 973 938 893 841
TAP3 1125 1094 1054 1023 983 951 909 864 827
TAP2-Factory 1036 1003 962 929 891 857 812 766 719
TAP1 959 912 879 838 808 752 695 651 593
TAP5 1252 1214 1182 1144 1113 1072 1019 957 883
TAP4-Factory 1149 1117 1077 1042 1007 973 938 893 841
TAP3 1125 1094 1054 1023 983 951 909 864 827
TAP2 1036 1003 962 929 891 857 812 766 719
TAP1 959 912 879 838 808 752 695 651 593
MODEL SIZE
EXTERNAL STATIC PRESSURE (INWC.)
BLOWER SPEEDS
1. Airflow based upon dry coil at 230V with no electric heat ˈ no filter. For 24, 30and36 sizes, airflow at 208V is approximately the same as
230V because the mult-tap ECM motor is a constant torque motor. The torque doesn’t drop off at the speeds in which the motor operates.
2. Airflow is equivalent for front or bottom return configurations.
3. SCFM is nearly the same with cooling performance airflow, the gap is in the 1 to 2%.
Section 6. Performance and Electrical Data
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NOTES:
1: Use Copper Wire (75
Min) Only Between Disconnect Swicth And Unit .
2: To Be Wired In Accordance With NEC And Local Codes.
3: If Any Of The Original Wire ,As Supplied,Must Be Replaced.Use The Same
Or Equivalent Type Wire.
4: Connect R To R,G To G,Etc.See Outdoor Instruction For Details.
5: To Change Speed Tap,Move Blue Wire Desird Terminal.
6: See Airflow Tables For Tap Usage.
7:Factory Wires May Be Present,DO NOT USE.
ć
7)0575$16)250(5
)/)86(/,1.
)0)$102725
&$3 )$1 &$3$&,725
*1' *5281'
),(/' 32:(5 :,5,1*
*1'
9ᨺ
&20
9
9
7)05
FM
%51&
%/8
<**1'
:+,7(
<(/1
%/./
NOTES:
1: Use Copper Wire (75
Min) Only Between Disconnect Swicth And Unit .
2: To Be Wired In Accordance With NEC And Local Codes.
3: If Any Of The Original Wire ,As Supplied,Must Be Replaced.Use The Same
Or Equivalent Type Wire.
4: Connect R To R,G To G,Etc.See Outdoor Instruction For Details.
5: To Change Speed Tap,Move Blue Wire Desird Terminal.
6: See Airflow Tables For Tap Usage.
7:Factory Wires May Be Present,DO NOT USE.
ć
7)0575$16)250(5
)/)86(/,1.
)0)$102725
*1'
&20
9
9
7)05
NOTES:
1: Use Copper Wire (75
Min) Only Between Disconnect Swicth And Unit .
2: To Be Wired In Accordance With NEC And Local Codes.
3: If Any Of The Original Wire ,As Supplied,Must Be Replaced.Use The Same
Or Equivalent Type Wire.
4: Connect R To R,G To G,Etc.See Outdoor Instruction For Details.
5: To Change Speed Tap,Move Green Wire Desird Terminal.
6: See Airflow Tables For Tap Usage.
ć
FM
<**1'
1
&
/
* When TMM5A0B24M21SAA use 18KBTUH outdoor unit ,select SCFM between 450 and 675.