5
Table 2 — 35E Basic Pressure Data
LEGEND
*Minimums are for all except CCN controls, which may be lower. Minimum for DDC by
others is to be provided by the control’s provider.
†A minimum 0.03 in. wg discharge static pressure is required to set the flow switch in the
electric heater.
**Maximum discharge temperatures with electric heat are set at 120 F by the National
Electric Code. Max kW shown assumes 55 F entering air and is limited by unit’s selected
voltage, phase, max capacity and design (see Electrical Data in the Product Data cata-
log). Min cfm for electric heat is based on UL/ETL listings. (Diffuser) performance will
likely be poor at this low flow rate.) The ASHRAE (American Society of Heating, Refrig-
eration and Air Conditioning Engineers) Handbook of Fundamentals does not recom-
mend a discharge temperature exceeding 90 F for satisfactory air mixing and comfort.
††Max. kW is limited by design.
NOTES:
1.
To obtain Total Pressure (Pt), add the Velocity Pressure for a given cfm to the Static
Pressure drop (
∆
P
S
) of the desired configuration.
Example: Pt for a Size 8 Basic Unit at 925 cfm = 0.39 + 0.17 = 0.56
2.
The electric heat max kW is based on 3 phase power. For more details, refer to the air
terminal selection program.
Table 3A — 35E Heater Power Wiring and
Fuse Sizing (Single Phase, 60 Hz)
LEGEND
*Values based on 75 C copper wire.
Table 3B — 35E Heater Power Wiring and
Fuse Sizing (3 Phase, 60 Hz)
LEGEND
*Recommended minimum wire size.
INLET
SIZE (in.)
(Area)
CFM
MIN AIRFLOW (Cfm)*
ELECTRIC HEAT**
MAX kW
AT 55 F EAT
MINIMUM INLET STATIC PRESSURE (Unit and Heat Pressure Drop)
Cooling Only or
Cooling with Hot Water
Electric
Heat †
Velocity Press
(
∆
V
PS
)
Basic Unit
(
∆
P
S
)
Basic + 1 Row
Coil (
∆
P
S
)
Basic + 2 Row
Coil (
∆
P
S
)
Basic + 3 Row
Coil (
∆
P
S
)
Basic + 4 Row
Coil (
∆
P
S
)
Basic + Heater †
(
∆
P
S
)
55
50
or
0
55
1.1
0.02
0.00
0.00
0.01
0.01
0.01
0.00
4
110
2.3
0.10
0.01
0.02
0.03
0.03
0.04
0.01
(0.09)
170
3††
0.23
0.02
0.04
0.06
0.08
0.10
0.02
230
3††
0.43
0.03
0.07
0.11
0.15
0.18
0.03
85
75
or
0
85
1.7
0.02
0.00
0.01
0.02
0.02
0.03
0.00
5
170
3.5
0.09
0.02
0.04
0.06
0.08
0.10
0.02
(0.14)
265
5††
0.23
0.04
0.10
0.15
0.20
0.24
0.04
360
5††
0.43
0.08
0.18
0.27
0.36
0.45
0.08
100
110
or
0
110
2.1
0.02
0.01
0.01
0.02
0.03
0.03
0.01
6
240
4.9
0.09
0.04
0.08
0.12
0.16
0.20
0.04
(0.20)
380
7.5††
0.22
0.09
0.20
0.30
0.40
0.50
0.09
520
7.5††
0.42
0.17
0.38
0.57
0.75
0.94
0.17
140
140
or
0
140
2.9
0.02
0.01
0.01
0.02
0.03
0.04
0.01
7
330
6.8
0.09
0.04
0.08
0.12
0.16
0.20
0.04
(0.27)
525
9.5††
0.23
0.09
0.20
0.30
0.40
0.50
0.09
710
9.5††
0.41
0.17
0.37
0.55
0.73
0.91
0.17
190
185
or
0
190
3.9
0.02
0.01
0.02
0.03
0.05
0.06
0.01
8
440
9.1
0.09
0.04
0.12
0.19
0.25
0.32
0.04
(0.35)
675
13††
0.21
0.09
0.27
0.44
0.60
0.76
0.09
925
13††
0.39
0.17
0.51
0.82
1.13
1.43
0.17
240
240
or
0
240
4.9
0.02
0.01
0.02
0.03
0.04
0.05
0.01
9
550
11.3
0.08
0.07
0.12
0.17
0.22
0.27
0.07
(0.44)
875
16††
0.21
0.17
0.31
0.44
0.57
0.69
0.17
1200
16††
0.40
0.32
0.59
0.83
1.07
1.31
0.32
300
290
or
0
300
6.2
0.02
0.01
0.02
0.04
0.05
0.07
0.01
10
675
13.9
0.08
0.04
0.12
0.20
0.27
0.35
0.04
(0.55)
1075
21††
0.20
0.10
0.31
0.50
0.69
0.89
0.10
1450
21††
0.36
0.17
0.56
0.91
1.26
1.62
0.17
425
420
or
0
425
8.7
0.01
0.01
0.02
0.04
0.06
0.07
0.01
12
1000
20.6
0.08
0.04
0.14
0.22
0.31
0.40
0.04
(0.78)
1550
30††
0.19
0.09
0.33
0.54
0.75
0.96
0.09
2100
30††
0.34
0.17
0.60
0.99
1.37
1.76
0.17
580
580
or
0
580
11.9
0.01
0.01
0.02
0.04
0.05
0.06
0.01
14
1375
28.3
0.07
0.04
0.13
0.21
0.28
0.36
0.04
(1.07)
2125
36††
0.17
0.10
0.31
0.49
0.68
0.86
0.10
2900
36††
0.31
0.19
0.57
0.92
1.26
1.60
0.19
750
740
or
0
750
15.4
0.01
0.01
0.02
0.04
0.06
0.07
0.01
16
1775
36††
0.06
0.04
0.14
0.22
0.31
0.40
0.04
(1.40)
2725
36††
0.14
0.09
0.32
0.53
0.73
0.94
0.09
3700
36††
0.25
0.17
0.59
0.97
1.35
1.73
0.17
1800
1400
or
0
1800
36††
0.02
0.01
0.05
0.09
0.13
0.16
0.01
22
3300
36††
0.07
0.04
0.17
0.30
0.42
0.55
0.04
(2.63)
5200
36††
0.16
0.09
0.43
0.74
1.05
1.36
0.09
7100
36††
0.31
0.17
0.81
1.38
1.95
2.53
0.17
CCN —
Carrier Comfort Network®
∆
P
S
—
The difference in static pressure
from inlet to discharge with damper
fully open
DDC —
Direct Digital Controls
EAT
—
Entering Air Temperature
UL
—
Underwriters Laboratories
∆
V
PS
—
Change in velocity pressure
HEATER
SIZE (kW)
BTUH
120 V
208/240 V
277 V
Heater
FLA
AWG*
Heater
FLA
AWG*
Heater
FLA
AWG*
0.5
1,707
4.2
14
2.1
14
1.8
14
1.0
3,413
8.3
14
4.2
14
3.6
14
2.0
6,826
16.7
10
8.3
14
7.2
14
3.0
10,239
25.0
8
12.5
12
10.8
14
4.0
13,652
33.3
8
16.7
10
14.4
12
5.0
17,085
41.7
5
20.8
10
18.1
10
6.0
20,478
50.0
5
25.0
8
21.7
10
7.0
23,898
58.3
4
29.2
8
25.3
8
8.0
27,304
66.7
4
33.3
8
28.9
8
9.0
30,717
75.0
3
37.5
6
32.6
8
10.0
34,130
83.3
2
41.7
6
36.1
6
11.0
37,130
91.7
2
45.8
6
39.7
6
12.0
40,956
100.0
1
50.0
6
43.3
6
AWG
—
American Wire Gage
FLA
—
Full Load Amps
HEATER
SIZE (kW)
BTUH
208 V
480 V
Heater FLA
AWG*
Heater FLA
AWG*
0.5
1,707
1.4
14
0.6
10
1.0
3,413
2.8
14
1.2
10
2.0
6,826
5.6
14
2.4
10
3.0
10,239
8.3
14
3.6
10
4.0
13,652
11.1
14
4.8
10
5.0
17,085
13.9
12
6.0
10
6.0
20,478
16.7
10
7.2
10
7.0
23,898
19.4
10
8.4
10
8.0
27,304
22.2
10
9.6
10
9.0
30,717
25.0
8
10.8
10
10.0
34,130
27.8
8
12.0
10
12.0
40,956
33.3
8
14.4
12
14.0
47,782
38.8
6
16.8
12
16.0
54,608
44.4
6
19.2
10
18.0
61,434
50.0
6
21.6
10
20.0
68,260
55.5
4
24.0
10
22.0
75,086
61.1
4
26.4
8
24.0
81,912
66.6
4
28.8
8
26.0
88,738
72.3
3
31.3
8
28.0
95,564
77.8
3
33.7
8
30.0
102,390
83.4
2
36.1
6
32.0
109,216
89.0
2
38.6
6
34.0
116,042
94.5
1
41.0
6
36.0
122,868
100.1
1
43.4
6
AWG
—
American Wire Gage
FLA
—
Full Load Amps
