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Section 5. - Heater Pressure Drop Table - Use For All TMM4B Wall Mount Air Handler Models
A
R I
F
L
O
W
MODEL
CFM
1400
1300
1200
1100
JMM4A0B30 , 36
1000
900
800
700
900
800
JMM4A0A18, 24
700
600
500
Section 6. Performance and Electrical Data
FOR MOBILE HOME APPLICATIONS)
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.
MODEL
BLOW ER
JMM4A
SPEEDS
High
18
Med
Low
High
24
Med
Low
High
30
Med
Low
High
36
Med
Low
--- Shaded boxes represent airflow outside the required 300-450 cfm/ton.
NOTES:
1. Airflow based upon dry coil at 230V with no electric heat and factory---approved filter.
2. Airflow is equivalent for front or bottom return configurations.
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.
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 perimeter 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.
N
U
M
B
E
R
O
F
R
A
C
K
S
1
2
A
R I
P
R
E
S
S
U
R
E
D
R
O
P
-
N I
C
0.06
0.08
0.06
0.08
0.06
0.08
0.06
0.08
0.06
0.08
0.04
0.06
0.04
0.06
0.04
0.06
0.04
0.06
0.04
0.06
0.04
0.06
0.04
0.06
0.04
0.06
PSC-Airflow Performance (Standard CFM)
0
0.1
813
775
695
656
603
562
947
895
847
845
801
676
640
1367
1312
1252
1211
1165
1114
992
952
1397
1345
1290
1298
1252
1198
1149
1105
1056
3
B A YHTRJ505BRKA*
H
E
S
W
.
G
.
B A YHTRJ508BRKA*
0.08
B A YHTRJ510BRKA*
0.08
Accessory Heater Usage
0.08
NUMBER
0.08
OF RACKS
0.08
0.06
0.06
0.06
0.06
Minimum CFM
0.06
0.06
JMM4A0A18 21SAA
0.06
JMM4A0A24 21SAA
0.06
JMM4A0B30 21SAA
JMM4A0B36 31SAA
(WALL-MOUNT AIR HANDLERS ARE SUITABLE
EXTERNAL STATIC PRESSURE (in.w.c.)
0.2
0.3
0.4
731
692
653
620
581
540
525
485
443
799
753
759
716
675
602
563
523
1192
1131
1065
1016
912
873
828
1263
1196
1147
1094
1008
960
9
H
E
A
T
E
R
R
A
C
H
E
A
T
E
R
M
O
D
E
L
SIZES
kW
USED WITH
1
18 6
3 -
5
2
18 6
3 -
. 7
5
3
18 3 - 6
1 0
NUMBER OF RACKS
MODEL
1
450
450
70 0
70 0
0.5
0.6
609
560
498
440
393
-
704
655
626
573
499
-
1063
990
960
899
782
728
1116
1051
1037
976
909
856
K
S
N O
.
O
F
R
A
C
K
S
1
2
3
INTERNAL CIRCUIT
PROTECTION
C
c r i t B reaker
i u
C
c r i t B reaker
i u
C
c r i t B reaker
i u
2
3
500
600
500
600
72 5
75 0
72 5
75 0
0.7
0.8
501
424
380
-
-
-
592
530
510
-
-
-
908
821
833
748
656
627
980
907
910
842
791
726
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