RT-PRC007-EN
32
Performance
Data
Table PD-11 — Natural Gas Heating Capacities
Table PD-9 — Electric Heat Air Temperature Rise
KW
Total
Cfm
Input
MBH
8000
9000
10000
11000
12000
13000
14000
15000
16000
17000
18000
19000
20000
36
123
14.2
12.6
11.3
10.3
9.4
8.7
8.1
7.6
—
—
—
—
—
54
184
21.2
18.9
17.0
15.4
14.2
13.1
12.1
11.3
10.6
10.0
9.4
8.9
8.5
72
246
28.3
25.2
22.6
20.6
18.9
17.4
16.2
15.1
14.2
13.3
12.6
11.9
11.3
90
307
35.4
31.5
28.3
25.7
23.6
21.8
20.2
18.9
17.7
16.7
15.7
14.9
14.2
108
369
—
—
—
—
28.3
26.1
24.3
22.6
21.2
20.0
18.9
17.9
17.0
Notes:
1. Air temperature rise = (KW x 3413)/(scfm x 1.085).
2. All heaters on constant volume units provide 2 increments of capacity. All VAV units provide 1 step of heating capacity.
3. Air temperature rise in this table are based on heater operating at 240, 480 or 600 volts.
Heat Input MBH
Heating Output MBH
Tons
Unit Model No.
(See Note 1)
(See Note 1)
Air Temp. Rise, F
YCD/YCH330**L
27½-35
YCD/YCH360**L
350,000/250,000
283,500/202,500
10-40
YCD/YCH420**L
YCD/YCH330**H
27½-35
YCD/YCH360**H
600,000/425,000
486,000/344,500
25-55
YCD/YCH420**H
YCD/YCH480**L
40-50
YCD/YCH600**L
400,000/300,000
324,000/243,000
5-35
YCD/YCH480**H
40-50
YCD/YCH600**H
800,000/600,000
648,000/486,000
20-50
Note:
1. Second stage is total heating capacity. Second Stage/First Stage.
Notes:
1. KW ranges in this table are based on heater operating at 208, 240, 480, and 600 volts.
2. For other than rated voltage, KW =
(
Applied Voltage
)
2
x Rated KW.
Rated Voltage
3. Electric heaters up to 54 KW are single element heaters, those above 54 KW are dual element heaters.
Table PD-10 — Available Electric Heat KW Ranges
Nominal
Nominal Voltage
Unit Size
Tons
208
240
480
600
27½
27-41
36-54
36-90
54-90
30.0
27-41
36-54
36-90
54-90
35.0
27-41
36-54
36-90
54-90
40.0
41
54
54-108
54-108
50.0
41
54
54-108
54-108
60 Hz
