Bryant 478-90 User Manual
Page 4
Attention! The text in this document has been recognized automatically. To view the original document, you can use the "Original mode".
COMPONENT INFORMATION
Chilled Water Coil
Chilled Fan Motor
(2) 1/2 HP
Area
Sq. Ft.
7.92
Voltage (Std)
208/230-60-1
Height X Width
Inches
30 X 38
Speed
RPM
1075
Tube OD
Inches
1/2
Full Load Amps
3.6
Rows
3
Locked Rotor Amps
10.5
Fins
12/In. Flat
Fan Diameter
Inches
(2) 22.12
Pattern
1.25 X 1.08 Stag.
Chilled Water Pump
Circuits
9
HP & Service Factor
1/3 - 1.75
Blower Wheels
No.
2
Voltage
208/230-60-1
Diameter x Width
Inches
12-5/8 X 12-5/8
Speed
RPM
3450
Blower Motor (Std)
HP & SF
1 X 1.25
Frame
48
Speed
RPM
3450
Full Load Amps
3.6
Frame
56
Locked Rotor Amps
23.0
Rotation
ccw
Solution Pump Motor
Voltage (Std)
208-230-60-1
HP & Service Factor
3/4 - 1.25
Full Load Amps
6.7
Voltage
208/230-60-1
Locked Rotor Amps
35
Speed
RPM
1725
Blower Motor Pulley
Inches
PD 2.9 - 1.9
Frame
55
Blower Pulley
Inches
PD 12
Full Load Amps
5.4
Belt Length x Width
Inches
51 X 1/2
Locked Rotor Amps
29.5
Filters
(4) 25 X 20 X 1
Pump Pulley Diameter
Inches
7.84
Motor Pulley Diameter
Inches
2.3
Belt Length x Width
36.42 X 3/16
DETAILED COOLING CAPACITIES
AIR ENTERING
C.W. COIL
CHILLER ENTERING AIR TEMPERATURE ° F
85
95
105
CFM
EWB
Capacity
Btuh
X
1000
Capacity
Btuh
X
1000
Capacity
Btuh
X
1000
Total
Sensible
Total
Sensible
Total
Sensible
71
93.5
48.1
92.0
47.5
87.0
45.6
2,500
67
89.5
57.8
88.0
57.2
83.5
55.6
63
81.5
65.9
79.3
65.1
75.0
63.2
71
93.6
50.2
92.1
49.9
87.1
48.3
3,000
67
92.5
62.5
90.0
61.6
85.7
59.9
63
85.5
72.3
83.7
71.6
79.5
70.0
71
93.7
52.5
92.2
52.2
87.2
50.7
3,500
67
93.0
66.2
91.0
65.4
86.0
63.9
63
87.5
77.9
85.7
77.1
81.3
75.6
71
93.8
55.3
92.3
54.4
87.3
53.1
4,000
67
93.4
69.6
91.5
69.1
86.5
67.4
63
89.5
83.4
87.5
82.5
82.5
80.8
Notes:
1. Sensible heat capacities shown are based on 80 F entering air at the evaporator.
2. Direct interpolation is permissible. Do not extrapolate.
3. To interpolate:
(a) below 80 F DB, subtract 800 Btuh per 1000 cfm
for each degree below 80 F from the listed sensible capacity.
(b) above 80 F DB, add 800 Btuh per 1000 cfm
for each degree above 80 F from the listed sensible capacity.
4. Formula:
LDB = EDB -
Sensible Heat Capacity (Btuh)
1.08
X cfm
Total Capacity (Btuh)
4.5
X cfm
where h = Enthalpy (Btu/lb)
Lh - Eh -