OMNIZONE™
50XCA06-24
Product
Data
Air-Cooled
Indoor Self-Contained Systems
with PURON® Refrigerant (R-410A)
5 to 20 Nominal Tons
The 50XCA single-package cooling
units with integral air-cooled condensers
offer:
• Compact, durable, and attractive
cabinet fits any working environment
• Available in ducted or free return with
rear return connections with vertical
supply air discharge
• Provides high-efficiency cooling for
commercial and industrial projects
• Rear condenser inlet and discharge
and belt drive condenser fan permit
condenser air connections to be
ducted through window or wall louver
• Uses Puron® refrigerant (R-410A)
Features/Benefits
The Omnizone 50XCA units
provide a practical and
economical approach to
comfort conditioning
requirements for offices,
factories, and other
applications in existing
buildings when indoor air-
cooled condensers are
required.
Design flexibility
The 50XCA indoor packaged units are
designed to provide the flexibility re-
quired in replacement, renovation, and
new construction. Units are available in 6
sizes from 5 tons to 20 tons which meet
the needs for cooling restaurants, retail
stores, warehouses, offices, and building
additions.
a50-8499
Copyright 2010 Carrier Corporation
Form 50XCA-1PD
Model number nomenclature
50XC
A
24 A A -
B
5 A A H 0 AA
Factory-Installed Options Code
See codes in unit price pages
50XC – OMNIZONE™ Indoor Packaged Unit
Condenser Option
A – Air-Cooled
Design Revision Level
0 – Original Release
X – Quote Control
Unit Size – Nominal Tons
06 – 5
08 – 7 1/2
12 – 10
14 – 12
16 – 15
24 – 20
Condenser Motor Hp Options
D – 1 Hp Motor
E – 1 1/2 Hp Motor
F – 2 Hp Motor
G – 3 Hp Motor
H – 5 Hp Motor
Return Air/Discharge Air Options
A – Rear Return, Vertical Discharge, Single Unit, Ducted
J – 7 1/2 Hp Motor
Heating Coil Options
A – No Heating Coil
Condenser Coil Options
A – 0.0 to 0.2 ESP
B – 0.2 to 0.5 ESP
C – 0.5 to 1.0 ESP
Evaporator Fan Speed
See unit price pages.
Control Options
A – Standard Controls
Evaporator Motor Hp Options
B – 1/2 Hp Motor
C – 3/4 Hp Motor
D – 1 Hp Motor
F – 2 Hp Motor
G – 3 Hp Motor
H – 5 Hp Motor
J – 7 1/2 Hp Motor
Voltage Options
1 – 575-3-60
5 – 208/230-3-60
6 – 460-3-60
E – 1 1/2 Hp Motor
a50-8500
AHRI* capacity ratings
UNIT
NOMINAL
TONS
EVAPORATOR
CFM
CONDENSER
NET COOLING
TOTAL
kW
5.8
7.1
10.6
12.7
14.7
24.0
EER
IEER
50XCA
CFM
2,800
3,500
5,500
8,000
8,000
11,400
(Btuh)
65,000
06
08
12
14
16
24
5
1,875
2,625
3,500
4,200
5,250
7,000
11.2
11.2
11.2
11.0
11.0
10.0
11.4
11.4
11.4
11.2
11.2
10.1
71/2
10
12
15
20
80,000
119,000
140,000
162,000
240,000
LEGEND
Energy Efficiency Ratio
Integrated Energy Efficiency Ratio
EER
IEER
—
—
*AHRI — Air Conditioning, Heating, and Refrigeration Institute.
NOTE: Unit is tested in accordance with AHRI standard 340/360.
3
Physical data
UNIT 50XCA
NOMINAL CAPACITY (tons)
UNIT OPERATING WEIGHT (lb)
COMPRESSOR
06
5
891
08
71/2
1144
12
10
1269
14
12
1298
16
15
1575
24
20
2000
Copeland Scroll
Compressor Model
Qty
Steps of Control
ZP57
1
1
ZP67
1
1
ZP51
2
2
ZP57
2
2
ZP72
2
2
ZP103
2
2
Operating Charge R-410A (lb)
EVAPORATOR FAN
Nominal Cfm
17.4
21.4
15.5 / 14.6
Adjustable, Belt-Drive, Centrifugal
22.1 / 20.8
26.1 / 19.1
26.6 / 19.5
1750
1500 to 2500
0 - 1.6
110-10R
1
576 - 782
1600
1...A50
AK89
2625
2250 to 3750
0 - 1.6
110-10R
2
712 - 949
1700
1...BX42
BK65
3500
3000 to 5000
0 - 1.6
120-9R
2
656 - 750
1700
1...BX48
BK70
1VP34
1
4375
3600 to 6000
0 - 1.6
120-9R
2
801 - 832
1700
1...BX46
BK100
1VP56
1.5
5250
4500 to 7500
0 - 1.6
120-9R
3
689 - 918
1700
1...BX48
BK67
7500
6000 to 10000
0 - 1.6
120-11R
3
889 - 913
1700
1...BX56
BK67
Cfm Range
Available Static (in. wg)
Evaporator Fan Size
Number of Evaporator Fans
Standard Speed Range (Rpm)
Max. Allowable Rpm
Belt Quantity ... Type
Fan Pulley (Type)
Motor Pulley (Type)
Std HP
1VP44
0.5
1VP34
1
1VP34
1.5
1VP44
3
HP Range
0.5 - 1.5
0.75
0.625
1 - 2
1
1 - 3
1
0.875
17.1
1.5 - 5
1.1875
0.875
1.5 - 5
1.1875
0.875
3 - 7.5
1.1875
1.125
Fan Shaft Size (in.)
Motor Shaft Size (in.)
Center Distance (in.)
EVAPORATOR COIL
Quantity Rows ... Fin/in.
Fin Block Size (H x L) (in.)
Face Area (sq ft)
0.875
15.3
15.3
16.5
17.1
21.1
3/8-in. OD, Enhanced Copper Tube, Aluminum Fins
4...12
28 x 34
6.6
4...12
28 x 46
8.9
5...12
32 x 60
13.3
5...12
32 x 60
13.3
5...12
32 x 80
17.8
5...12
36 x 80
20.0
RETURN AIR FILTERS (Std 1 in.,
throwaway)
(8) 16x16
(2) 16x20
(8) 16x16
(2) 16x20
(4) 18X18
(4) 18X24
(2) 25X25
(2) 25X25
(8) 16X16
CONDENSER FAN
Nominal Cfm
Cfm Range
Adjustable, Belt-Drive, Centrifugal
2800
2100 - 3000
0 - 1.0
110-10R
2
656 - 875
1700
1...BX66
BK70
3500
2625 - 4300
0 - 1.0
110-10R
2
712 - 949
1700
1...BX65
BK65
1VP34
1.5
6400
4800 - 7600
0 - 1.0
150-12R
2
8000
6000 - 9500
0 - 1.0
150-15R
2
8500
6375 - 9700
0 - 1.0
150-15R
2
764 - 1011
1600
1...BX75
BK77
11400
8550 - 12700
0 - 1.0
150-11R
3
820 - 1041
1700
1...BX90
BK85
Available Static
Condenser Fan Size
Number of Condenser Fans
Standard Speed Range (Rpm)
Max. Allowable Rpm
Belt Quantity ... Type
Fan Pulley (Type)
712 - 949
1700
764 - 1011
1600
1...BX75
BK90
1VP34
2
1...BX75
BK77
1VP44
2
Motor Pulley (Type)
Std HP
1VP34
1.0
1VP44
3
1VP50
5
HP Range
1 - 1.5
1
0.875
26
1 - 2
1
0.875
2 - 3
1
0.875
29
2 - 3
1.1875
1.125
3 - 5
1.1875
1.125
3 - 7.5
1.4375
1.125
Fan Shaft Size (in.)
Motor Shaft Size (in.)
Center Distance (in.)
CONDENSER COIL
Quantity Rows ... Fin/in.
Fin Block Size (H x L)
Face Area (sq ft)
26
29
29
35
3/8-in. OD, Enhanced Copper Tube, Aluminum Fins
6...16
30 x 46
9.6
6...16
30 x 46
9.6
6...16
34 x 60
14.2
6...16
34 x 80
18.9
6...16
34 x 80
18.9
6...16
40 x 80
22.2
CONDENSATE DRAIN LINE (in.)
1 at 3/4 FPT
LEGEND
FPT — Female Pipe Thread
4
Dimensions — 50XCA06-14
P
O
EVAP ACCESS
PANEL
Q
N
Q
DISCONNECT
(OPT)
50XCA06
TOP VIEW
P
CONTROL BOX
O
CONDENSER
ACCESS
Q
Q
PANEL
N
N
FRONT VIEW
TOP VIEW
50XCA08,12,14
A
F
6.4 (1"-2" FLTR)
I
INDOOR SUPPLY
AIR FLOW
C
INDOOR RTN
AIR FLOW
E
G
FILTER ACCESS
(BOTH SIDES)
1.8
CONDENSER
DISCHARGE
B
S
T
COND VFD
(OPT)
U
U
H
R
R
K
3/4" FPT DRAIN
D
OUTDOOR RTN
AIR FLOW
5.9
M
14.3
J
RIGHT VIEW
REAR VIEW
L
COND
EVAP
EVAP RETURN
DUCT
EVAP RETURN
DUCT
EVAP SUPPLY DUCT
(Blower Opening)
COND DISCHARGE
WIDTH HEIGHT DEPTH
UNIT
50XCA
SECTION SECTION
DUCT (Blower Opening)
A
B
C
D
E
F
G
H
I
J
K
L
M
N
O
P
Q
R
S
T
U
06
08
12
14
53.1
53.1
68.0
88.0
77.1
77.1
90.1
90.1
30.0
30.0
31.2
31.2
46.6
46.6
54.5
54.5
31.0
31.0
35.5
35.5
47.2 24.8 49.8 4.8 46 29.4 0.9 4.8 13.4 12.8 2.7 19.8 13.4 12.8 32.1
47.2 24.8 49.8 4.8 46 29.4 0.9 4.8 13.4 12.8 2.7 7.6 13.4 12.8 32.1
7.6
7.6
61.1 31.8 56.7 5.5 60 32.8 1.5 5.7 12.5 13.8 8.5 13.6 16.4 16.2 36.5 11.5
81.0 31.8 56.7 2.5 80 32.8 1.5 5.7 12.5 13.8 8.9 23.6 18.9 16.2 36.6 17.2
NOTE: Dimensions are in inches.
a50-8501
5
Dimensions — 50XCA16,24
4.9 (1"-2" FLTR)
C
INDOOR RTN
AIR FLOW
E
P
R
R
FILTER ACCESS
(BOTH SIDES)
O
CONDENSER
B
DISCHARGE
Q
Q
N
N
N
D
TOP VIEW
1.2
OUTDOOR RTN
AIR FLOW
COND VFD
(OPT)
RIGHT VIEW
A
F
INDOOR
SUPPLY
I
AIR FLOW
G
T
T
13.2
V
V
V
V
S
H
S
S
S
S
U
U
K
M
J
L
REAR VIEW
50XCA16
REAR VIEW
50XCA24
COND
EVAP
EVAP SUPPLY DUCT
(Blower Opening)
COND DISCHARGE
WIDTH HEIGHT DEPTH
EVAP RETURN DUCT EVAP RETURN DUCT
UNIT
50XCA
SECTION SECTION
DUCT (Blower Opening)
A
B
C
D
E
F
G
H
I
J
K
L
M
N
O
P
Q
R
S
T
U
V
16
24
88.0
88.0
90.1
100.1
31.0
31.0
54.5
60.5
35.5
39.5
81.0 31.8 56.7 5.5 80.0 32.8 1.5 5.7 12.5 13.8 8.5 13.5 11.7 18.9 16.2 36.5 16.2
81.5 35.8 62.6 5.5 80.0 38.5 1.5 5.7 14.9 13.8 8.6 8.3 13.2 15.0 16.2 42.0 8.3
NOTE: Dimensions are in inches.
a50-8502
6
24 (TYP)
a50-8502
SERVICE CLEARANCE
NOTE: Dimensions are in inches.
Selection procedure (50XCA08 unit example)
I Determine design conditions.
Given:
For example:
Unit selection — 50XCA08
Selected at 3000 cfm of 80 F edb, 67 F ewb enter-
ing air.
TC = 83,800 Btuh
SHC = 66,500 Btuh
(See correction factor table, below the cooling
capacity tables.)
Compressor — Power Input = 5.85 kW
Leaving Air db
= 59.9 F
Leaving Air wb at 67 F wb
= 58.3 F
Cooling Requirements
Total Cooling Capacity (TC) . . . . . . . . .82,000 Btuh
Sensible Cooling Capacity (SHC) . . . . .65,000 Btuh
Evaporator Air Quantity. . . . . . . . . . . . . 3,000 Cfm
Condenser Air Quantity. . . . . . . . . . . . . 3,500 Cfm
Summer Entering-Air Conditions:
Entering dry bulb (edb) . . . . . . . . . . . . . . . . .80 F
Entering wet bulb (ewb) . . . . . . . . . . . . . . . .67 F
Entering Condenser Air Temp (EAT) . . . . . . .95 F
Unit Voltage . . . . . . . . . . . . . . . . . . . . . . . . 460 V
Fan Requirements
External Static Pressure Required
III Fan requirements.
ESP (in. wg) . . . . . . . . . . . . . . . . . . . . . . . . . .0.75
External static pressure (ESP) required 0.75 in. wg
Enter Evaporator Fan Performance table for cfm, and
static pressure required to obtain the following data:
II Select unit based on cooling requirements.
Enter Gross Cooling Capacities table for 50XCA08
unit at 3000 cfm and required wet bulb of 67 F and
read down to the section displaying capacities with
95 F entering-air temperature. The 50XCA08 pro-
vides a total capacity closest to design requirements.
For 3000 cfm and 0.75 ESP, by interpolation the
fan operates at 877 rpm and requires 0.98 brake
horsepower.
Since standard motor horsepower is 1.0, it will pro-
duce the necessary cfm and ESP for this job.
7
Performance data
GROSS COOLING CAPACITIES
50XCA06 (5 TONS)
AIR ENTERING EVAPORATOR — 80 F Edb (F) - CFM
Entering
Condenser Air
2500
2000
1500
Air Entering Evaporator — Ewb (F)
57
0.20
73.4
73.4
53.08
45.41
3.25
62
0.10
74.8
70.2
54.40
51.41
3.27
67
0.10
80.4
58.6
58.75
56.79
3.34
75
0.03
90.4
38.9
65.92
65.43
3.48
57
0..34
68.8
68.8
48.48
43.16
3.20
62
0.15
71.9
63.2
51.18
48.97
3.23
67
0.14
77.8
53.4
55.83
54.36
3.31
75
0.10
87.8
36.9
63.36
63.10
3.45
57
0.44
62.9
62.1
42.07
39.61
3.13
62
0.22
67.9
55.2
46.49
45.04
3.18
67
0.18
73.7
47.5
51.34
50.43
3.26
75
0.15
83.7
34.5
59.30
59.29
3.39
ECT (F)
CFM
2100
BF
TC
SHC
LDB
LWB
kW
74.0
75.7
81.5
92.2
69.3
72.7
78.8
89.4
63.3
68.5
74.5
85.0
TC
SHC
LDB
LWB
kW
74.0
52.85
45.30
2.85
74.5
74.5
52.70
45.22
2.63
68.7
68.7
54.80
46.22
4.29
69.5
69.5
54.52
46.09
3.83
70.0
70.0
54.34
46.01
3.57
63.4
63.4
56.74
47.14
5.48
64.3
64.3
56.44
46.99
4.99
64.8
64.8
56.23
46.90
4.70
60.4
60.4
57.84
47.64
6.11
61.3
61.3
57.52
47.50
5.62
61.9
61.9
57.29
47.39
5.34
57.3
57.3
59.00
48.18
6.76
58.3
58.3
70.7
54.22
51.28
2.86
76.1
70.9
54.13
51.21
2.63
69.3
67.3
55.46
52.26
4.29
70.3
67.8
55.26
52.11
3.84
70.9
68.1
55.15
52.03
3.58
63.5
63.5
56.84
53.16
5.48
64.5
64.5
56.48
53.01
4.99
65.0
65.0
56.29
52.93
4.71
60.5
60.5
57.93
53.62
6.11
61.4
61.4
57.61
53.48
5.62
62.0
62.0
57.39
53.39
5.34
57.3
57.3
59.09
54.09
6.76
58.3
58.3
59.0
58.60
56.63
2.90
82.2
59.3
58.49
56.54
2.65
74.4
56.1
59.67
57.64
4.37
75.5
56.5
59.51
57.48
3.88
76.3
56.8
59.39
57.37
3.60
67.6
53.3
60.66
58.57
5.55
68.8
53.7
60.53
58.41
5.03
69.6
54.1
60.39
58.30
4.73
63.8
51.8
61.22
59.08
6.17
65.0
52.1
61.09
58.92
5.66
65.9
52.5
60.94
58.80
5.36
59.9
50.2
61.79
59.60
6.81
61.2
50.7
39.5
65.71
65.22
2.98
93.1
39.9
65.59
65.11
2.70
83.5
36.5
66.79
66.23
4.52
85.2
37.1
66.59
66.04
3.96
86.2
37.5
66.45
65.92
3.64
75.8
33.9
67.73
67.11
5.70
77.5
34.4
67.54
66.92
5.11
78.6
34.8
67.40
66.80
4.77
71.6
32.5
68.24
67.59
6.32
73.3
33.0
68.06
67.40
5.75
74.4
33.4
67.91
67.27
5.41
67.3
31.0
68.77
68.07
6.95
68.9
31.6
69.3
48.23
43.03
2.82
69.6
69.6
48.09
42.96
2.61
64.6
64.6
50.37
44.09
4.23
65.2
65.2
50.10
43.96
3.80
65.6
65.6
49.93
43.87
3.56
59.8
59.8
52.58
45.16
5.42
60.5
60.5
52.26
45.01
4.95
61.0
61.0
52.05
44.91
4.69
57.1
57.1
53.82
45.76
6.05
57.8
57.8
53.49
45.61
5.59
58.3
58.3
53.26
45.49
5.32
54.2
54.2
55.15
46.39
6.70
55.1
55.1
63.6
51.03
48.84
2.84
73.0
63.8
50.95
48.76
2.62
66.7
60.6
52.37
50.05
4.26
67.6
61.1
52.17
49.87
3.82
68.0
61.3
52.09
49.79
3.56
60.9
57.7
53.68
51.21
5.43
61.9
58.1
53.49
51.02
4.97
62.4
58.4
53.36
50.91
4.70
57.7
56.0
54.46
51.83
6.06
58.7
56.5
54.26
51.63
5.60
59.3
56.8
54.11
51.53
5.33
54.3
54.3
55.22
52.48
6.70
55.4
54.5
53.7
55.66
54.18
2.88
79.4
54.0
55.54
54.08
2.64
72.1
50.9
56.96
55.40
4.34
73.1
51.3
56.76
55.21
3.86
73.8
51.6
56.63
55.10
3.59
65.7
48.2
58.16
56.55
5.52
66.8
48.6
57.99
56.36
5.01
67.5
48.9
57.84
56.23
4.72
62.2
46.7
58.84
57.17
6.14
63.2
47.1
58.67
56.99
5.64
64.0
47.4
58.50
56.85
5.35
58.4
45.1
59.53
57.82
6.78
59.6
45.6
37.4
63.11
62.86
2.96
90.2
37.7
62.97
62.73
2.69
81.3
34.5
64.42
64.09
4.48
82.8
35.0
64.18
63.86
3.94
83.8
35.4
64.03
63.72
3.63
74.0
31.9
65.57
65.18
5.67
75.5
32.4
65.34
64.96
5.09
76.5
32.8
65.18
64.81
4.76
70.0
30.5
66.20
65.77
6.29
71.5
31.0
65.98
65.55
5.73
72.6
31.4
65.80
65.40
5.40
65.8
29.1
66.84
66.37
6.93
67.4
29.6
62.4
41.87
39.46
2.79
63.5
62.5
41.79
39.39
2.60
59.0
59.0
43.96
40.86
4.15
59.5
59.5
43.66
40.70
3.76
59.7
59.7
43.50
40.62
3.54
54.9
54.9
46.46
42.14
5.28
55.3
55.3
46.21
42.01
4.91
55.7
55.7
45.99
41.90
4.66
52.4
52.4
47.96
42.90
5.96
53.0
53.0
47.63
42.73
5.54
53.4
53.4
47.38
42.61
5.29
49.9
49.9
49.53
43.68
6.61
50.6
50.6
55.4
46.35
44.88
2.82
68.8
55.6
46.23
44.77
2.61
63.2
52.8
47.94
46.40
4.21
63.8
53.1
47.76
46.22
3.79
64.2
53.3
47.63
46.10
3.55
57.8
50.2
49.52
47.93
5.38
58.5
50.4
49.36
47.73
4.94
59.0
50.7
49.20
47.59
4.68
54.8
48.7
50.43
48.76
6.01
55.6
49.1
50.19
48.52
5.57
56.0
49.3
50.08
48.42
5.31
51.5
47.1
51.38
49.64
6.64
52.4
47.5
47.8
51.15
50.23
2.85
75.0
48.0
51.01
50.11
2.63
68.6
45.1
52.76
51.77
4.28
69.5
45.5
52.54
51.55
3.83
70.0
45.7
52.39
51.42
3.57
62.8
42.5
54.32
53.26
5.47
63.7
42.9
54.11
53.03
4.98
64.3
43.2
53.93
52.88
4.70
59.5
41.1
55.18
54.07
6.10
60.4
41.4
54.97
53.85
5.62
61.1
41.8
54.78
53.68
5.33
56.1
39.6
56.07
54.92
6.74
57.1
40.0
35.0
59.01
59.00
2.93
85.6
35.2
58.88
58.87
2.67
77.8
32.2
60.63
60.58
4.43
79.1
32.7
60.36
60.31
3.91
79.8
33.0
60.18
60.14
3.61
71.1
29.7
62.13
62.00
5.62
72.4
30.2
61.85
61.73
5.06
73.3
30.5
61.66
61.55
4.75
67.4
28.3
62.95
62.78
6.24
68.7
28.8
62.67
62.51
5.70
69.6
29.2
62.46
62.32
5.38
63.6
27.0
63.77
63.57
6.88
64.9
27.4
55
2800
3500
2100
2800
3500
2100
2800
3500
2100
2800
3500
2100
2800
3500
TC
SHC
LDB
LWB
kW
TC
SHC
LDB
LWB
kW
TC
SHC
LDB
LWB
kW
75
TC
SHC
LDB
LWB
kW
TC
SHC
LDB
LWB
kW
TC
SHC
LDB
LWB
kW
95
TC
SHC
LDB
LWB
kW
TC
SHC
LDB
LWB
kW
TC
SHC
LDB
LWB
kW
105
TC
SHC
LDB
LWB
kW
TC
SHC
LDB
LWB
kW
TC
SHC
LDB
LWB
kW
115
58.63
48.01
6.28
58.8
58.8
58.45
47.92
6.00
58.72
53.94
6.28
58.8
58.8
58.54
53.87
6.00
61.62
59.43
6.32
62.0
51.0
61.49
59.32
6.02
68.58
67.89
6.40
69.9
31.9
68.46
67.78
6.06
54.76
46.21
6.25
55.5
55.5
54.58
46.12
5.99
55.16
52.28
6.25
55.9
54.9
54.99
52.17
5.99
59.33
57.62
6.30
60.2
45.9
59.21
57.51
6.01
66.61
66.15
6.38
68.3
29.9
66.47
66.02
6.06
49.11
43.47
6.19
50.9
50.9
48.92
43.38
5.95
51.15
49.40
6.22
52.8
47.7
51.03
49.29
5.97
55.82
54.67
6.27
57.6
40.2
55.69
54.54
6.00
63.49
63.29
6.36
65.7
27.7
63.32
63.14
6.04
TC
SHC
LDB
LWB
kW
LEGEND
BF
ECT
EDB
—
—
—
Bypass Factor
Entering Condenser Temperature (F)
Entering Dry Bulb (F)
EWB — Entering Wet Bulb (F)
SHC
TC
kW
—
—
—
Sensible Capacity (1000 Btu/hr)
LDB
LWB
—
—
Leaving Dry Bulb (F)
Leaving Wet Bulb (F)
Total Capacity (1000 Btu/hr)
Compressor Motor Power Input (kilowatts)
8
GROSS COOLING CAPACITIES (cont)
50XCA08 (71/2 Tons)
AIR ENTERING EVAPORATOR — 80 F Edb (F) - CFM
Entering
Condenser Air
3750
3000
2250
Air Entering Evaporator — Ewb (F)
57
0.30
95.1
95.1
56.76
47.15
3.95
62
0.11
95.4
95.3
56.81
53.14
3.97
67
0.10
100.9
80.3
60.59
58.61
4.07
75
0.06
113.5
50.9
67.72
67.13
4.32
57
0.43
89.6
89.6
52.61
45.18
3.85
62
0.20
91.1
86.8
53.61
51.24
3.88
67
0.13
98.1
72.4
58.11
56.60
4.01
75
0.12
110.8
47.9
65.58
65.20
4.26
57
0.52
82.1
82.1
46.56
42.19
3.71
62
0.31
86.4
75.4
49.48
47.98
3.79
67
0.17
93.8
63.8
54.30
53.32
3.93
75
0.16
106.4
44.5
62.17
62.05
4.18
ECT (F)
CFM
2625
BF
TC
SHC
LDB
LWB
kW
TC
96.1
96.1
56.51
47.03
3.53
96.2
96.2
56.61
53.06
3.53
102.4
80.9
60.44
58.48
3.61
115.5
51.5
67.57
66.98
3.80
90.4
90.4
52.37
45.06
3.45
92.1
87.3
53.47
51.11
3.47
99.5
73.0
57.94
56.44
3.57
112.7
48.5
65.40
65.02
3.76
82.7
82.7
46.31
42.07
3.35
87.1
75.7
49.36
47.85
3.41
94.9
64.3
54.11
53.14
3.51
108.1
45.0
61.94
61.81
3.70
SHC
LDB
LWB
kW
55
3500
4300
2625
3500
4300
2625
3500
4300
2625
3500
4300
2625
3500
4300
TC
96.5
96.5
56.41
46.98
3.30
96.7
96.7
56.49
53.02
3.31
103.1
81.2
60.37
58.42
3.37
116.6
51.9
67.49
66.90
3.53
90.8
90.8
52.24
45.00
3.24
92.5
87.6
53.39
51.06
3.26
100.0
73.2
57.88
56.38
3.34
113.6
48.8
65.30
64.93
3.49
83.0
83.0
46.19
42.01
3.16
87.5
75.9
49.26
47.77
3.21
95.3
64.5
54.04
53.07
3.29
108.8
45.3
61.83
61.71
3.44
SHC
LDB
LWB
kW
TC
88.9
88.9
58.27
47.84
5.06
89.0
89.0
58.36
53.79
5.06
93.2
77.1
61.34
59.30
5.16
105.0
48.0
68.43
67.77
5.44
84.0
84.0
54.32
46.00
4.96
84.5
83.2
54.72
52.10
4.97
90.8
69.4
59.01
57.46
5.11
102.6
45.0
66.44
66.00
5.38
77.2
77.2
48.53
43.18
4.81
80.1
72.3
50.72
49.13
4.87
87.0
60.9
55.49
54.44
5.02
98.8
41.7
63.28
63.09
5.29
SHC
LDB
LWB
kW
TC
89.9
89.9
58.04
47.74
4.58
89.9
89.9
58.13
53.70
4.58
94.7
77.8
61.18
59.17
4.66
106.8
48.6
68.29
67.64
4.85
84.8
84.8
54.08
45.88
4.50
85.5
83.7
54.56
51.97
4.51
92.0
69.9
58.89
57.32
4.61
104.3
45.6
66.27
65.84
4.81
77.8
77.8
48.30
43.07
4.39
81.0
72.7
50.54
48.98
4.44
88.0
61.3
55.32
54.28
4.55
100.3
42.2
63.08
62.89
4.74
SHC
LDB
LWB
kW
75
TC
90.4
90.4
57.90
47.67
4.32
90.5
90.5
58.00
53.64
4.32
95.4
78.1
61.11
59.11
4.38
107.9
48.9
68.19
67.55
4.54
85.3
85.3
53.94
45.82
4.26
86.0
84.0
54.47
51.90
4.27
92.7
70.2
58.79
57.24
4.35
105.3
45.9
66.17
65.74
4.51
78.1
78.1
48.17
43.00
4.17
81.3
72.9
50.48
48.91
4.21
88.6
61.6
55.21
54.18
4.30
101.1
42.5
62.95
62.78
4.46
SHC
LDB
LWB
kW
TC
82.1
82.1
59.93
48.60
6.36
82.2
82.2
60.01
54.47
6.37
84.7
73.8
62.15
60.06
6.43
95.4
44.8
69.19
68.48
6.72
77.8
77.8
56.21
46.89
6.25
77.9
77.9
56.31
52.94
6.26
82.6
66.2
60.00
58.39
6.38
93.4
41.9
67.37
66.89
6.67
71.8
71.8
50.75
44.28
6.10
73.4
68.9
52.08
50.34
6.14
79.7
57.7
56.74
55.63
6.30
90.3
38.6
64.49
64.25
6.58
SHC
LDB
LWB
kW
TC
82.9
82.9
59.73
48.51
5.83
83.0
83.0
59.82
54.39
5.83
86.1
74.3
62.02
59.93
5.89
97.1
45.4
69.06
68.35
6.10
78.5
78.5
56.03
46.80
5.75
78.5
78.5
56.13
52.86
5.75
83.8
66.5
59.89
58.26
5.85
95.0
42.4
67.21
66.73
6.06
72.2
72.2
50.58
44.19
5.64
74.1
69.3
51.93
50.22
5.67
80.4
58.1
56.61
55.51
5.79
91.7
39.1
64.30
64.06
6.00
SHC
LDB
LWB
kW
95
TC
83.5
83.5
59.59
48.45
5.55
83.6
83.6
59.67
54.33
5.55
86.9
74.6
61.95
59.87
5.60
98.2
45.8
68.96
68.27
5.77
79.0
79.0
55.87
46.73
5.48
79.1
79.1
55.97
52.80
5.49
84.5
66.9
59.79
58.18
5.56
96.0
42.8
67.11
66.63
5.73
72.6
72.6
50.42
44.12
5.39
74.5
69.4
51.86
50.16
5.42
81.1
58.3
56.49
55.41
5.52
92.6
39.4
64.17
63.94
5.68
SHC
LDB
LWB
kW
TC
78.3
78.3
60.86
49.02
7.07
78.3
78.3
60.95
54.85
7.08
80.2
71.9
62.61
60.46
7.13
90.2
43.1
69.60
68.86
7.41
74.4
74.4
57.28
47.39
6.97
74.4
74.4
57.38
53.39
6.97
78.2
64.4
60.54
58.90
7.08
88.6
40.3
67.84
67.34
7.37
68.7
68.7
52.00
44.89
6.81
69.5
67.0
52.86
51.04
6.83
75.6
56.1
57.39
56.29
7.00
85.8
37.1
65.10
64.84
7.29
SHC
LDB
LWB
kW
TC
79.1
79.1
60.67
48.94
6.54
79.1
79.1
60.75
54.77
6.54
81.6
72.4
62.49
60.34
6.58
91.9
43.6
69.47
68.74
6.79
75.0
75.0
57.09
47.30
6.45
75.1
75.1
57.18
53.30
6.46
79.5
64.9
60.39
58.75
6.54
90.0
40.7
67.72
67.21
6.76
69.2
69.2
51.82
44.80
6.34
70.4
67.4
52.71
50.88
6.36
76.3
56.3
57.31
56.18
6.48
87.0
37.5
64.95
64.69
6.70
SHC
LDB
LWB
kW
105
TC
79.7
79.7
60.52
48.87
6.24
79.8
79.8
60.60
54.71
6.24
82.3
72.8
62.41
60.27
6.28
93.0
44.0
69.38
68.66
6.45
75.5
75.5
56.93
47.22
6.18
75.6
75.6
57.02
53.24
6.18
80.0
65.1
60.33
58.69
6.25
91.0
41.1
67.61
67.11
6.42
69.6
69.6
51.66
44.72
6.09
70.8
67.6
52.60
50.80
6.10
76.9
56.6
57.18
56.07
6.20
87.9
37.8
64.82
64.57
6.37
SHC
LDB
LWB
kW
TC
74.1
74.1
61.90
49.49
7.82
74.1
74.1
61.98
55.26
7.82
75.4
69.8
63.11
60.87
7.86
84.8
41.4
70.03
69.25
8.14
70.5
70.5
58.47
47.94
7.71
70.5
70.5
58.56
53.87
7.71
73.6
62.5
61.10
59.41
7.81
83.2
38.5
68.39
67.84
8.10
65.3
65.3
53.40
45.56
7.56
65.6
64.9
53.68
51.71
7.57
71.0
54.2
58.15
57.01
7.73
80.7
35.3
65.81
65.51
8.02
SHC
LDB
LWB
kW
TC
75.0
75.0
61.66
49.38
7.28
75.1
75.1
61.74
55.17
7.28
76.7
70.3
62.99
60.76
7.32
86.3
41.8
69.91
69.14
7.52
71.2
71.2
58.24
47.83
7.20
71.3
71.3
58.33
53.78
7.20
74.8
63.0
60.96
59.28
7.28
84.7
39.0
68.25
67.70
7.49
65.9
65.9
53.17
45.45
7.09
66.5
65.2
53.57
51.55
7.10
71.9
54.5
58.03
56.87
7.22
82.0
35.7
65.64
65.34
7.43
SHC
LDB
LWB
kW
115
TC
75.7
75.7
61.51
49.31
6.99
75.7
75.7
61.59
55.10
6.99
77.4
70.7
62.91
60.70
7.02
87.4
42.2
69.82
69.06
7.19
71.8
71.8
58.07
47.75
6.93
71.8
71.8
58.16
53.71
6.93
75.5
63.3
60.88
59.20
6.99
85.7
39.3
68.15
67.61
7.16
66.3
66.3
53.00
45.37
6.83
66.9
65.5
53.46
51.48
6.84
72.5
54.8
57.91
56.76
6.94
82.9
36.1
65.51
65.22
7.11
SHC
LDB
LWB
kW
LEGEND
BF
ECT
EDB
—
—
—
Bypass Factor
Entering Condenser Temperature (F)
Entering Dry Bulb (F)
EWB — Entering Wet Bulb (F)
SHC
TC
kW
—
—
—
Sensible Capacity (1000 Btu/hr)
LDB
LWB
—
—
Leaving Dry Bulb (F)
Leaving Wet Bulb (F)
Total Capacity (1000 Btu/hr)
Compressor Motor Power Input (kilowatts)
9
Performance data (cont)
GROSS COOLING CAPACITIES (cont)
50XCA12 (10 TONS)
AIR ENTERING EVAPORATOR — 80 F Edb (F) - CFM
4000
Entering
Condenser Air
5000
3000
Air Entering Evaporator — Ewb (F)
57
0.23
140.7
140.7
54.21
45.94
5.93
62
0.06
140.9
140.9
54.30
52.09
5.93
67
0.05
151.0
117.2
58.75
57.48
6.09
75
0.03
171.6
75.7
66.32
65.97
6.42
57
0.37
131.8
131.8
49.79
43.81
5.80
62
0.13
135.1
125.6
51.37
49.88
5.85
67
0.08
146.3
105.3
56.13
55.21
6.02
75
0.06
166.9
71.0
63.98
63.77
6.34
57
0.46
119.7
119.7
43.44
40.59
5.62
62
0.23
127.4
108.2
47.13
46.26
5.74
67
0.11
139.0
92.4
52.10
51.54
5.91
75
0.10
159.3
65.8
60.24
60.18
6.22
ECT (F)
CFM
4800
BF
TC
SHC
LDB
LWB
kW
TC
141.6
141.6
54.03
45.86
5.31
141.8
141.8
54.13
52.02
5.31
152.6
117.9
58.62
57.37
5.42
173.7
76.4
66.19
65.85
5.64
132.5
132.5
49.62
43.72
5.22
136.0
126.1
51.26
49.79
5.26
147.7
105.9
56.00
55.08
5.37
168.7
71.6
63.83
63.63
5.59
120.2
120.2
43.27
40.50
5.11
128.2
108.6
47.01
46.14
5.18
140.0
92.9
51.96
51.41
5.30
160.8
66.4
60.07
60.02
5.50
SHC
LDB
LWB
kW
55
6000
7600
4800
6000
7600
4800
6000
7600
4800
6000
7600
4800
6000
7600
TC
142.1
142.1
53.95
45.82
4.97
142.6
141.3
54.23
51.96
4.96
153.3
118.1
58.57
57.32
5.05
174.8
76.7
66.13
65.78
5.21
132.9
132.9
49.54
43.68
4.90
136.5
126.3
51.21
49.74
4.93
148.3
106.2
55.94
55.03
5.01
169.6
71.9
63.76
63.56
5.17
120.5
120.5
43.18
40.46
4.82
128.6
108.8
46.95
46.08
4.87
140.5
93.1
51.89
51.34
4.96
161.5
66.6
59.99
59.94
5.11
SHC
LDB
LWB
kW
TC
131.8
131.8
55.83
46.71
7.65
132.0
132.0
55.93
52.78
7.65
140.0
112.8
59.54
58.24
7.80
159.5
71.6
67.05
66.66
8.16
123.7
123.7
51.65
44.71
7.51
125.4
120.7
52.50
50.85
7.53
135.8
101.0
57.11
56.16
7.72
155.2
66.9
64.88
64.65
8.08
112.6
112.6
45.59
41.70
7.31
118.3
103.8
48.47
47.54
7.41
129.3
88.1
53.38
52.79
7.60
148.5
61.7
61.44
61.35
7.95
SHC
LDB
LWB
kW
TC
132.7
132.7
55.67
46.63
6.94
132.9
132.9
55.77
52.71
6.94
141.2
113.3
59.44
58.15
7.03
161.3
72.2
66.94
66.56
7.28
124.5
124.5
51.48
44.63
6.84
126.2
121.1
52.39
50.77
6.86
136.9
101.4
57.00
56.06
6.98
156.8
67.5
64.76
64.53
7.22
113.2
113.2
45.41
41.61
6.72
119.1
104.2
48.35
47.43
6.78
130.2
88.5
53.26
52.67
6.91
149.8
62.2
61.29
61.21
7.14
SHC
LDB
LWB
kW
75
TC
133.2
133.2
55.58
46.59
6.53
133.3
133.3
55.68
52.68
6.54
141.9
113.6
59.40
58.11
6.60
162.1
72.5
66.89
66.52
6.78
124.9
124.9
51.39
44.59
6.47
126.7
121.4
52.34
50.72
6.48
137.5
101.7
56.95
56.01
6.57
157.6
67.7
64.70
64.47
6.74
113.5
113.5
45.32
41.56
6.38
119.5
104.4
48.29
47.38
6.43
130.7
88.8
53.19
52.61
6.51
150.5
62.5
61.21
61.14
6.68
SHC
LDB
LWB
kW
TC
121.9
121.9
57.65
47.56
9.68
122.0
122.0
57.75
53.54
9.68
127.6
107.9
60.43
59.08
9.80
145.4
67.0
67.88
67.46
10.18
114.7
114.7
53.72
45.71
9.53
114.9
114.9
53.81
51.89
9.53
123.9
96.2
58.19
57.21
9.72
141.9
62.4
65.90
65.63
10.10
104.7
104.7
48.02
42.92
9.32
108.3
98.9
49.95
48.94
9.39
118.3
83.5
54.78
54.16
9.60
136.2
57.3
62.76
62.64
9.98
SHC
LDB
LWB
kW
TC
122.8
122.8
57.49
47.49
8.89
122.9
122.9
57.59
53.47
8.90
128.7
108.3
60.36
59.01
8.97
147.1
67.5
67.78
67.37
9.23
115.4
115.4
53.55
45.63
8.80
115.6
115.6
53.65
51.81
8.80
124.9
96.6
58.10
57.12
8.92
143.3
62.9
65.79
65.53
9.18
105.3
105.3
47.83
42.83
8.66
109.1
99.3
49.83
48.83
8.71
119.2
83.8
54.67
54.05
8.85
137.4
57.7
62.63
62.51
9.09
SHC
LDB
LWB
kW
95
TC
123.2
123.2
57.42
47.45
8.45
123.3
123.3
57.51
53.44
8.45
129.3
108.5
60.31
58.97
8.51
147.9
67.8
67.73
67.33
8.69
115.8
115.8
53.47
45.59
8.38
116.0
116.0
53.56
51.78
8.38
125.5
96.8
58.06
57.07
8.47
144.1
63.1
65.74
65.47
8.65
105.6
105.6
47.74
42.79
8.29
109.4
99.5
49.77
48.78
8.32
119.7
84.0
54.61
53.99
8.42
138.0
58.0
62.56
62.45
8.59
SHC
LDB
LWB
kW
TC
116.5
116.5
58.64
48.01
10.81
116.6
116.6
58.73
53.94
10.82
120.9
105.2
60.93
59.53
10.91
137.9
64.6
68.32
67.89
11.29
109.8
109.8
54.84
46.25
10.66
109.9
109.9
54.94
52.37
10.66
117.5
93.6
58.78
57.76
10.84
134.6
59.9
66.45
66.16
11.22
100.4
100.4
49.32
43.57
10.45
102.9
96.3
50.73
49.66
10.51
112.5
81.0
55.53
54.88
10.72
129.4
54.9
63.47
63.33
11.10
SHC
LDB
LWB
kW
TC
117.3
117.3
58.49
47.95
10.00
117.4
117.4
58.58
53.88
10.00
121.9
105.6
60.85
59.46
10.07
139.4
65.1
68.23
67.80
10.33
110.5
110.5
54.68
46.17
9.90
110.6
110.6
54.78
52.30
9.91
118.5
94.0
58.69
57.68
10.02
136.0
60.4
66.34
66.06
10.28
101.0
101.0
49.14
43.48
9.77
103.7
96.6
50.63
49.56
9.81
113.3
81.3
55.42
54.78
9.95
130.6
55.3
63.34
63.21
10.20
SHC
LDB
LWB
kW
105
TC
117.7
117.7
58.42
47.91
9.54
117.8
117.8
58.51
53.85
9.54
122.5
105.8
60.81
59.42
9.59
140.1
65.3
68.19
67.76
9.77
110.8
110.8
54.60
46.13
9.47
111.0
111.0
54.71
52.26
9.47
119.0
94.2
58.64
57.64
9.55
136.7
60.6
66.29
66.01
9.74
101.3
101.3
49.06
43.44
9.37
104.0
96.8
50.58
49.52
9.40
113.7
81.5
55.37
54.73
9.50
131.2
55.5
63.28
63.15
9.68
SHC
LDB
LWB
kW
TC
110.8
110.8
59.69
48.49
12.01
110.9
110.9
59.78
54.37
12.01
114.0
102.3
61.44
59.99
12.08
129.9
62.0
68.78
68.33
12.47
104.5
104.5
56.04
46.81
11.86
104.7
104.7
56.14
52.87
11.87
110.8
90.9
59.38
58.34
12.01
127.0
57.4
67.02
66.71
12.40
95.9
95.9
50.71
44.26
11.66
97.3
93.5
51.57
50.42
11.70
106.2
78.4
56.30
55.64
11.90
122.3
52.4
64.21
64.05
12.29
SHC
LDB
LWB
kW
TC
111.6
111.6
59.55
48.43
11.20
111.7
111.7
59.63
54.31
11.20
114.9
102.7
61.38
59.93
11.25
131.3
62.5
68.70
68.25
11.50
105.2
105.2
55.90
46.74
11.09
105.3
105.3
56.00
52.81
11.10
111.7
91.3
59.31
58.26
11.20
128.2
57.8
66.92
66.62
11.46
96.3
96.3
50.58
44.19
10.96
97.9
93.8
51.50
50.34
10.98
107.0
78.7
56.21
55.54
11.13
123.4
52.8
64.10
63.95
11.38
SHC
LDB
LWB
kW
115
TC
111.9
111.9
59.48
48.40
10.73
112.0
112.0
59.56
54.28
10.73
115.4
102.9
61.34
59.90
10.77
132.0
62.7
68.66
68.22
10.95
105.5
105.5
55.82
46.70
10.66
105.7
105.7
55.91
52.77
10.66
112.1
91.5
59.26
58.23
10.73
128.9
58.1
66.88
66.57
10.91
96.6
96.6
50.48
44.14
10.56
98.3
94.0
51.44
50.29
10.58
107.4
78.9
56.15
55.49
10.68
124.0
53.0
64.04
63.89
10.86
SHC
LDB
LWB
kW
LEGEND
BF
ECT
EDB
—
—
—
Bypass Factor
Entering Condenser Temperature (F)
Entering Dry Bulb (F)
EWB — Entering Wet Bulb (F)
SHC
TC
kW
—
—
—
Sensible Capacity (1000 Btu/hr)
LDB
LWB
—
—
Leaving Dry Bulb (F)
Leaving Wet Bulb (F)
Total Capacity (1000 Btu/hr)
Compressor Motor Power Input (kilowatts)
10
GROSS COOLING CAPACITIES (cont)
50XCA14 (12 TONS)
AIR ENTERING EVAPORATOR — 80 F Edb (F) - CFM
Entering
Condenser Air
6000
4800
3600
Air Entering Evaporator — Ewb (F)
57
0.24
165.3
165.3
54.74
46.20
6.11
62
0.09
166.3
163.1
55.21
52.28
6.13
67
0.08
178.4
136.5
59.37
57.65
6.21
75
0.05
202.5
88.8
66.62
66.14
6.39
57
0.38
155.0
155.0
50.40
44.11
6.05
62
0.15
159.4
146.7
52.14
50.11
6.08
67
0.12
172.8
123.2
56.73
55.43
6.17
75
0.10
196.7
83.4
64.30
64.00
6.34
57
0.47
141.0
141.0
44.09
40.93
5.97
62
0.25
150.5
127.1
47.82
46.54
6.02
67
0.15
164.0
108.6
52.68
51.85
6.11
75
0.13
187.6
77.5
60.60
60.51
6.27
ECT (F)
CFM
6000
BF
TC
SHC
LDB
LWB
kW
TC
165.8
165.8
54.66
46.17
5.51
166.9
163.7
55.13
52.24
5.51
179.2
136.8
59.33
57.60
5.54
204.0
89.3
66.54
66.07
5.62
155.5
155.5
50.31
44.07
5.48
159.9
147.0
52.08
50.07
5.49
173.5
123.5
56.69
55.38
5.53
197.8
83.8
64.23
63.93
5.60
141.3
141.3
44.01
40.89
5.45
150.8
127.2
47.81
46.51
5.47
164.6
108.8
52.63
51.79
5.50
188.6
77.8
60.51
60.42
5.57
SHC
LDB
LWB
kW
55
8000
9500
6000
8000
9500
6000
8000
9500
6000
8000
9500
6000
8000
9500
TC
166.2
166.2
54.61
46.14
5.24
167.2
163.8
55.10
52.22
5.24
179.7
137.0
59.29
57.57
5.26
204.6
89.5
66.51
66.04
5.32
155.8
155.8
50.25
44.04
5.23
160.2
147.1
52.06
50.05
5.24
174.0
123.7
56.64
55.34
5.25
198.5
84.1
64.18
63.88
5.30
141.6
141.6
43.95
40.86
5.22
151.2
127.4
47.76
46.47
5.22
165.0
109.0
52.58
51.75
5.24
189.2
78.1
60.46
60.37
5.28
SHC
LDB
LWB
kW
TC
155.1
155.1
56.31
46.94
8.16
155.3
155.3
56.40
52.99
8.16
165.2
131.2
60.17
58.41
8.24
187.7
83.8
67.37
66.85
8.44
145.8
145.8
52.15
44.96
8.09
148.1
141.1
53.20
51.05
8.11
160.3
118.0
57.71
56.36
8.21
182.7
78.5
65.22
64.88
8.39
133.1
133.1
46.11
41.97
8.00
140.1
122.0
49.13
47.77
8.05
152.7
103.6
53.94
53.05
8.14
174.9
72.7
61.79
61.65
8.33
SHC
LDB
LWB
kW
TC
155.7
155.7
56.22
46.90
7.45
155.9
155.9
56.30
52.94
7.46
166.0
131.5
60.13
58.36
7.49
189.0
84.2
67.30
66.79
7.58
146.3
146.3
52.06
44.92
7.43
148.9
141.4
53.15
50.99
7.44
161.0
118.3
57.66
56.31
7.47
183.8
78.9
65.14
64.80
7.56
133.4
133.4
46.02
41.92
7.39
140.6
122.2
49.08
47.71
7.41
153.3
103.8
53.87
52.99
7.45
175.8
73.0
61.70
61.56
7.53
SHC
LDB
LWB
kW
75
TC
156.1
156.1
56.15
46.87
7.14
156.2
156.2
56.26
52.92
7.14
166.6
131.8
60.09
58.33
7.15
189.8
84.5
67.26
66.75
7.20
146.7
146.7
51.99
44.89
7.13
149.2
141.5
53.12
50.97
7.13
161.6
118.5
57.61
56.27
7.15
184.6
79.2
65.09
64.76
7.19
133.7
133.7
45.95
41.89
7.12
141.0
122.4
49.02
47.67
7.12
153.8
104.0
53.82
52.94
7.14
176.4
73.3
61.64
61.51
7.17
SHC
LDB
LWB
kW
TC
143.5
143.5
58.08
47.76
10.55
143.6
143.6
58.17
53.72
10.55
150.6
125.4
61.05
59.23
10.61
171.0
78.3
68.19
67.63
10.80
135.3
135.3
54.17
45.93
10.48
135.9
134.3
54.48
52.05
10.48
146.4
112.3
58.78
57.38
10.57
166.9
73.1
66.22
65.84
10.77
124.1
124.1
48.39
43.12
10.39
127.8
115.9
50.65
49.19
10.27
140.0
98.1
55.31
54.37
10.52
160.6
67.5
63.08
62.89
10.71
SHC
LDB
LWB
kW
TC
144.1
144.1
57.98
47.71
9.79
144.3
144.3
58.07
53.68
9.79
151.6
125.8
60.98
59.17
9.82
172.4
78.7
68.13
67.57
9.90
135.8
135.8
54.07
45.88
9.76
136.7
134.6
54.44
51.98
9.77
147.1
112.6
58.73
57.33
9.80
168.1
73.5
66.15
65.77
9.88
124.3
124.3
48.35
43.10
9.73
129.2
116.6
50.48
49.02
9.74
140.6
98.3
55.25
54.31
9.78
161.3
67.7
63.01
62.83
9.85
SHC
LDB
LWB
kW
95
TC
144.6
144.6
57.90
47.68
9.44
144.8
144.8
58.00
53.65
9.44
152.1
126.0
60.96
59.15
9.45
173.3
79.1
68.08
67.53
9.49
136.2
136.2
53.98
45.84
9.43
137.0
134.8
54.40
51.96
9.43
147.7
112.9
58.68
57.28
9.44
168.9
73.8
66.10
65.72
9.48
124.7
124.7
48.26
43.05
9.43
129.4
116.7
50.44
49.00
9.43
141.2
98.6
55.18
54.25
9.44
162.0
68.0
62.95
62.77
9.47
SHC
LDB
LWB
kW
TC
137.3
137.3
59.03
48.20
11.85
137.4
137.4
59.12
54.11
11.85
142.6
122.2
61.53
59.68
11.90
162.4
75.6
68.60
68.04
12.09
129.7
129.7
55.24
46.44
11.78
129.6
129.6
55.38
52.56
11.78
138.8
109.3
59.36
57.93
11.87
158.6
70.4
66.74
66.34
12.05
119.0
119.0
49.70
43.77
11.68
122.1
113.2
51.34
49.83
11.71
133.3
95.4
55.99
55.05
11.82
152.6
64.7
63.77
63.57
12.00
SHC
LDB
LWB
kW
TC
137.7
137.7
58.96
48.17
11.08
137.8
137.8
59.05
54.08
11.08
143.7
122.6
61.47
59.62
11.11
163.6
75.9
68.56
67.98
11.19
130.0
130.0
55.18
46.41
11.06
130.3
130.3
55.24
52.50
11.06
139.5
109.5
59.31
57.88
11.09
159.4
70.6
66.70
66.29
11.17
119.2
119.2
49.65
43.74
11.02
122.8
113.5
51.27
49.75
11.03
133.6
95.4
55.99
55.02
11.07
153.3
64.9
63.72
63.51
11.15
SHC
LDB
LWB
kW
105
TC
138.2
138.2
58.88
48.13
10.73
138.4
138.4
58.97
54.05
10.73
144.1
122.8
61.44
59.59
10.74
164.3
76.1
68.52
67.95
10.77
130.5
130.5
55.09
46.37
10.72
130.6
130.6
55.19
52.47
10.72
140.2
109.8
59.25
57.83
10.73
160.2
70.9
66.65
66.25
10.76
119.6
119.6
49.54
43.69
10.71
123.1
113.6
51.23
49.72
10.72
134.2
95.6
55.92
54.96
10.73
154.0
65.1
63.66
63.46
10.75
SHC
LDB
LWB
kW
TC
130.4
130.4
60.08
48.67
13.18
130.5
130.5
60.16
54.53
13.18
134.2
118.8
62.04
60.14
13.22
152.8
72.5
69.07
68.48
13.39
123.4
123.4
56.44
47.00
13.12
123.5
123.5
56.54
53.04
13.12
130.6
106.0
59.97
58.51
13.18
149.5
67.4
67.31
66.89
13.36
113.4
113.4
51.12
44.46
13.02
115.2
109.7
52.21
50.60
13.04
125.4
92.0
56.84
55.85
13.14
144.1
61.7
64.51
64.28
13.31
SHC
LDB
LWB
kW
TC
130.8
130.8
60.02
48.65
12.45
130.9
130.9
60.10
54.51
12.45
135.3
119.2
61.98
60.08
12.47
154.0
72.8
69.03
68.43
12.54
123.7
123.7
56.39
46.98
12.42
123.8
123.8
56.48
53.02
12.42
131.6
106.4
59.89
58.44
12.45
150.2
67.5
67.28
66.85
12.52
113.6
113.6
51.07
44.44
12.38
116.0
110.0
52.13
50.51
12.39
126.1
92.2
56.78
55.78
12.43
144.8
61.9
64.47
64.23
12.50
SHC
LDB
LWB
kW
115
TC
131.4
131.4
59.93
48.61
12.10
131.5
131.5
60.01
54.47
12.10
135.8
119.4
61.95
60.05
12.11
154.5
73.0
69.00
68.40
12.13
124.2
124.2
56.29
46.93
12.10
124.3
124.3
56.39
52.98
12.10
132.1
106.6
59.86
58.41
12.11
151.0
67.8
67.23
66.80
12.13
114.0
114.0
50.96
44.39
12.08
116.3
110.2
52.09
50.48
12.09
126.7
92.5
56.70
55.72
12.10
145.4
62.1
64.41
64.18
12.12
SHC
LDB
LWB
kW
LEGEND
BF
ECT
EDB
—
—
—
Bypass Factor
Entering Condenser Temperature (F)
Entering Dry Bulb (F)
EWB — Entering Wet Bulb (F)
SHC
TC
kW
—
—
—
Sensible Capacity (1000 Btu/hr)
LDB
LWB
—
—
Leaving Dry Bulb (F)
Leaving Wet Bulb (F)
Total Capacity (1000 Btu/hr)
Compressor Motor Power Input (kilowatts)
11
Performance data (cont)
GROSS COOLING CAPACITIES (cont)
50XCA16 (15 TONS)
AIR ENTERING EVAPORATOR — 80 F Edb (F) - CFM
6000
Entering
Condenser Air
7500
4500
Air Entering Evaporator — Ewb (F)
57
0.26
203.8
203.8
55.09
46.37
8.70
62
0.06
204.2
204.1
55.18
52.47
8.72
67
0.05
216.8
172.7
59.12
57.93
8.96
75
0.03
245.4
109.9
66.76
66.44
9.57
57
0.39
191.2
191.2
50.79
44.30
8.43
62
0.15
194.5
185.0
51.89
50.43
8.50
67
0.08
210.3
154.6
56.64
55.77
8.83
75
0.06
239.1
102.7
64.53
64.34
9.44
57
0.48
173.8
173.8
44.59
41.19
8.09
62
0.26
183.8
159.1
47.79
46.96
8.28
67
0.11
200.2
135.2
52.78
52.26
8.63
75
0.09
228.8
94.9
60.98
60.92
9.22
ECT (F)
CFM
6000
BF
TC
SHC
LDB
LWB
kW
TC
205.2
205.2
54.92
46.29
7.91
205.4
205.4
55.02
52.40
7.92
219.2
173.6
59.01
57.82
8.14
249.0
111.0
66.62
66.30
8.64
192.4
192.4
50.60
44.21
7.72
196.1
185.8
51.77
50.32
7.77
212.5
155.5
56.50
55.64
8.04
242.3
103.8
64.37
64.18
8.53
174.8
174.8
44.40
41.09
7.44
184.8
159.5
47.70
46.86
7.60
201.7
135.8
52.67
52.13
7.86
231.5
95.9
60.78
60.73
8.35
SHC
LDB
LWB
kW
55
8000
9500
6000
8000
9500
6000
8000
9500
6000
8000
9500
6000
8000
9500
TC
206.2
206.2
54.80
46.23
7.61
206.4
206.4
54.91
52.36
7.61
220.2
174.0
58.96
57.77
7.82
250.6
111.5
66.55
66.24
8.25
193.2
193.2
50.49
44.15
7.42
196.8
186.1
51.72
50.28
7.48
213.4
155.9
56.44
55.58
7.72
243.6
104.3
64.30
64.11
8.17
175.4
175.4
44.27
41.02
7.18
185.6
160.0
47.61
46.79
7.32
202.7
136.3
52.57
52.05
7.56
232.6
96.3
60.70
60.65
8.00
SHC
LDB
LWB
kW
TC
190.2
190.2
56.75
47.15
10.80
190.4
190.4
56.85
53.17
10.80
199.8
165.9
59.94
58.71
11.03
226.8
103.7
67.50
67.15
11.69
179.0
179.0
52.66
45.21
10.54
180.0
177.2
53.06
51.39
10.56
194.2
148.1
57.62
56.73
10.89
221.2
96.6
65.45
65.23
11.55
163.3
163.3
46.74
42.29
10.18
169.9
152.4
49.14
48.25
10.33
185.3
128.7
54.08
53.51
10.69
212.2
88.8
62.18
62.09
11.33
SHC
LDB
LWB
kW
TC
191.6
191.6
56.58
47.07
9.93
191.8
191.8
56.67
53.10
9.93
202.1
166.8
59.83
58.60
10.12
229.7
104.6
67.39
67.04
10.63
180.1
180.1
52.48
45.12
9.72
181.6
178.0
52.95
51.28
9.75
195.9
148.7
57.53
56.63
10.01
223.8
97.4
65.32
65.10
10.52
164.1
164.1
46.57
42.20
9.44
171.3
153.0
49.01
48.12
9.57
186.8
129.3
53.96
53.39
9.84
214.4
89.7
62.02
61.94
10.35
SHC
LDB
LWB
kW
75
TC
192.6
192.6
56.46
47.01
9.55
192.8
192.8
56.56
53.05
9.55
203.1
167.2
59.78
58.56
9.72
231.5
105.2
67.31
66.97
10.19
180.9
180.9
52.36
45.07
9.37
182.3
178.4
52.88
51.24
9.39
197.1
149.2
57.45
56.56
9.62
225.5
98.0
65.23
65.02
10.09
164.7
164.7
46.44
42.14
9.12
171.9
153.3
48.95
48.07
9.23
187.8
129.8
53.86
53.31
9.48
215.9
90.2
61.92
61.84
9.93
SHC
LDB
LWB
kW
TC
175.5
175.5
58.55
47.98
13.24
175.6
175.6
58.65
53.91
13.25
181.6
158.6
60.82
59.52
13.41
205.9
96.9
68.31
67.93
14.07
165.6
165.6
54.70
46.18
12.98
165.8
165.8
54.80
52.31
12.99
176.7
141.0
58.68
57.74
13.28
201.3
89.9
66.45
66.20
13.94
151.6
151.6
49.11
43.47
12.62
155.4
145.3
50.56
49.58
12.72
169.3
122.0
55.43
54.84
13.08
194.0
82.4
63.47
63.35
13.74
SHC
LDB
LWB
kW
TC
176.7
176.7
58.41
47.91
12.31
176.8
176.8
58.50
53.85
12.31
183.6
159.4
60.72
59.44
12.45
208.6
97.7
68.21
67.83
12.97
166.5
166.5
54.56
46.12
12.11
166.7
166.7
54.66
52.25
12.11
178.4
141.8
58.57
57.65
12.35
203.8
90.7
66.33
66.08
12.87
152.3
152.3
48.97
43.41
11.82
156.5
145.8
50.46
49.48
11.90
170.4
122.4
55.34
54.74
12.19
195.9
83.0
63.34
63.22
12.71
SHC
LDB
LWB
kW
95
TC
177.6
177.6
58.29
47.86
11.89
177.8
177.8
58.38
53.81
11.90
184.5
159.8
60.68
59.40
12.02
210.3
98.4
68.14
67.76
12.49
167.3
167.3
54.44
46.06
11.71
167.5
167.5
54.54
52.20
11.72
179.2
142.1
58.52
57.60
11.92
205.3
91.3
66.25
66.00
12.39
152.9
152.9
48.85
43.35
11.46
157.0
146.1
50.40
49.43
11.53
171.4
122.9
55.24
54.66
11.79
197.3
83.5
63.24
63.13
12.25
SHC
LDB
LWB
kW
TC
167.5
167.5
59.52
48.42
14.57
167.7
167.7
59.61
54.31
14.57
171.7
154.6
61.30
59.96
14.69
194.9
93.4
68.74
68.34
15.33
158.3
158.3
55.81
46.71
14.32
158.5
158.5
55.91
52.78
14.33
167.1
137.3
59.24
58.29
14.57
190.6
86.4
66.98
66.71
15.21
145.3
145.3
50.39
44.11
13.97
147.3
141.4
51.35
50.30
14.03
160.4
118.3
56.15
55.55
14.38
184.2
79.1
64.13
64.01
15.04
SHC
LDB
LWB
kW
TC
168.6
168.6
59.39
48.36
13.64
168.8
168.8
59.48
54.26
13.64
173.7
155.4
61.21
59.88
13.75
197.8
94.3
68.63
68.23
14.28
159.1
159.1
55.69
46.65
13.44
159.3
159.3
55.79
52.73
13.44
169.0
138.0
59.14
58.19
13.65
193.0
87.1
66.87
66.60
14.17
145.9
145.9
50.28
44.05
13.15
148.6
141.9
51.25
50.19
13.21
161.7
118.8
56.06
55.45
13.49
185.9
79.5
64.03
63.90
14.02
SHC
LDB
LWB
kW
105
TC
169.5
169.5
59.28
48.31
13.21
169.7
169.7
59.37
54.21
13.21
174.6
155.8
61.16
59.84
13.31
199.0
94.7
68.58
68.18
13.78
159.8
159.8
55.59
46.60
13.03
160.0
160.0
55.69
52.68
13.03
169.7
138.4
59.09
58.14
13.22
194.5
87.7
66.78
66.52
13.69
146.5
146.5
50.16
43.99
12.78
149.1
142.2
51.19
50.15
12.83
162.5
119.2
55.99
55.39
13.08
187.2
80.0
63.93
63.81
13.55
SHC
LDB
LWB
kW
TC
159.0
159.0
60.56
48.89
15.94
159.2
159.2
60.65
54.73
15.94
161.6
150.4
61.82
60.41
16.02
183.2
89.7
69.18
68.76
16.64
150.6
150.6
56.99
47.26
15.70
150.8
150.8
57.08
53.27
15.71
157.3
133.5
59.83
58.85
15.90
179.9
83.0
67.49
67.22
16.54
138.6
138.6
51.77
44.78
15.36
139.3
137.1
52.22
51.01
15.39
151.3
114.6
56.90
56.28
15.73
173.9
75.5
64.84
64.70
16.37
SHC
LDB
LWB
kW
TC
160.0
160.0
60.44
48.84
15.04
160.2
160.2
60.53
54.68
15.04
163.5
151.1
61.73
60.32
15.11
186.0
90.6
69.08
68.66
15.62
151.4
151.4
56.88
47.20
14.85
151.5
151.5
56.97
53.22
14.85
159.1
134.1
59.73
58.75
15.01
181.7
83.5
67.42
67.13
15.52
139.1
139.1
51.66
44.73
14.57
140.4
137.6
52.11
50.91
14.60
152.4
115.1
56.82
56.19
14.87
175.4
75.9
64.75
64.60
15.38
SHC
LDB
LWB
kW
115
TC
160.9
160.9
60.33
48.79
14.62
161.1
161.1
60.42
54.64
14.62
164.3
151.5
61.68
60.29
14.68
187.2
91.0
69.03
68.62
15.13
152.0
152.0
56.77
47.16
14.44
152.2
152.2
56.87
53.18
14.44
159.8
134.4
59.68
58.71
14.60
183.0
83.9
67.35
67.07
15.05
139.7
139.7
51.55
44.67
14.20
140.9
137.9
52.05
50.88
14.23
153.4
115.5
56.73
56.12
14.47
176.6
76.4
64.66
64.52
14.93
SHC
LDB
LWB
kW
LEGEND
BF
ECT
EDB
—
—
—
Bypass Factor
Entering Condenser Temperature (F)
Entering Dry Bulb (F)
EWB — Entering Wet Bulb (F)
SHC
TC
kW
—
—
—
Sensible Capacity (1000 Btu/hr)
LDB
LWB
—
—
Leaving Dry Bulb (F)
Leaving Wet Bulb (F)
Total Capacity (1000 Btu/hr)
Compressor Motor Power Input (kilowatts)
12
GROSS COOLING CAPACITIES (cont)
50XCA024 (20 TONS)
AIR ENTERING EVAPORATOR — 80 F Edb (F) - CFM
Entering
Condenser Air
10,000
8,000
6,000
Air Entering Evaporator — Ewb (F)
57
0.22
283.6
283.6
54.01
45.86
12.84
62
0.06
283.9
283.9
54.11
52.02
12.85
67
0.05
303.4
235.7
58.63
57.44
13.26
75
0.02
343.6
152.1
66.25
65.97
14.06
57
0.36
266.0
266.0
49.52
43.68
12.50
62
0.12
272.2
252.8
51.19
49.79
12.62
67
0.08
294.2
211.8
56.00
55.15
13.07
75
0.06
334.0
142.4
63.92
63.77
13.86
57
0.46
241.5
241.5
43.11
40.42
12.04
62
0.22
256.8
217.7
46.94
46.12
12.34
67
0.11
279.6
185.8
51.95
51.44
12.78
75
0.09
319.2
132.0
60.18
60.16
13.56
ECT (F)
CFM
BF
TC
SHC
LDB
LWB
kW
8,550
TC
285.9
285.9
53.79
45.75
11.73
286.2
286.2
53.90
51.93
11.75
307.0
237.3
58.48
57.31
12.06
348.6
153.7
66.10
65.82
12.72
267.7
267.7
49.33
43.58
11.46
274.4
253.9
51.06
49.68
11.56
297.3
213.1
55.85
55.01
11.91
338.8
144.0
63.74
63.59
12.56
242.7
242.7
42.92
40.33
11.10
258.5
218.6
46.80
45.99
11.33
282.1
186.9
51.79
51.28
11.68
323.0
133.4
59.96
59.95
12.31
SHC
LDB
LWB
kW
55
11,400
12,700
8,550
TC
286.5
286.5
53.74
45.73
11.46
287.3
284.4
54.06
51.89
11.33
308.0
237.7
58.44
57.28
11.60
350.2
154.3
66.05
65.77
12.19
268.1
268.1
49.27
43.56
11.20
274.9
254.3
51.03
49.65
11.30
298.2
213.5
55.81
54.97
11.64
340.1
144.5
63.68
63.53
12.04
243.0
243.0
42.87
40.30
10.85
259.0
218.9
46.77
45.96
11.07
282.8
187.2
51.74
51.24
11.41
324.1
133.8
59.90
59.89
11.82
SHC
LDB
LWB
kW
TC
265.8
265.8
55.64
46.63
16.17
266.0
266.0
55.74
52.71
16.18
281.2
227.0
59.41
58.20
16.52
318.7
143.8
66.99
66.68
17.40
249.8
249.8
51.38
44.59
15.81
252.9
243.1
52.29
50.76
15.88
273.0
203.1
56.98
56.10
16.33
310.6
134.2
64.84
64.65
17.21
227.4
227.4
45.26
41.53
15.33
238.7
209.0
48.26
47.41
15.57
260.2
177.2
53.23
52.69
16.05
297.4
123.9
61.38
61.33
16.90
SHC
LDB
LWB
kW
TC
267.9
267.9
55.44
46.54
14.81
268.2
268.2
55.54
52.63
14.82
284.7
228.4
59.28
58.09
15.11
323.1
145.2
66.87
66.56
15.74
251.4
251.4
51.19
44.50
14.54
255.2
244.2
52.16
50.64
14.62
275.6
204.1
56.87
55.99
14.94
314.5
135.6
64.69
64.50
15.60
228.6
228.6
45.08
41.44
14.18
240.6
209.9
48.13
47.27
14.39
262.3
178.1
53.10
52.56
14.72
300.7
125.1
61.20
61.15
15.36
SHC
LDB
LWB
kW
75
11,400
12,700
8,550
TC
268.8
268.8
55.36
46.50
14.47
269.1
269.1
55.46
52.59
14.47
285.5
228.8
59.25
58.06
14.72
325.1
145.9
66.80
66.50
15.36
252.1
252.1
51.11
44.46
14.21
255.7
244.6
52.12
50.61
14.27
276.8
204.7
56.80
55.93
14.59
316.2
136.2
64.62
64.44
15.21
229.1
229.1
44.99
41.40
13.87
241.1
210.1
48.09
47.24
14.05
263.3
178.6
53.03
52.50
14.38
302.2
125.6
61.12
61.08
14.98
SHC
LDB
LWB
kW
TC
246.1
246.1
57.44
47.47
20.12
246.4
246.4
57.53
53.46
20.13
256.8
217.3
60.29
59.04
20.40
290.7
134.7
67.82
67.48
21.30
232.0
232.0
53.42
45.58
19.76
231.9
231.9
53.57
51.79
19.76
249.7
193.6
58.05
57.13
20.22
284.2
125.3
65.84
65.63
21.11
212.0
212.0
47.62
42.73
19.25
219.1
199.5
49.70
48.77
19.43
238.8
168.1
54.61
54.04
19.94
273.1
115.1
62.69
62.61
20.83
SHC
LDB
LWB
kW
TC
247.9
247.9
57.27
47.39
18.61
248.2
248.2
57.37
53.39
18.61
259.7
218.5
60.18
58.94
18.83
295.0
136.1
67.70
67.36
19.50
233.3
233.3
53.27
45.50
18.34
234.0
233.9
53.33
51.69
18.35
251.7
194.4
57.97
57.04
18.68
287.7
126.5
65.71
65.50
19.36
212.8
212.8
47.48
42.66
17.97
220.7
200.2
49.59
48.66
18.11
240.4
168.7
54.51
53.93
18.47
276.1
116.1
62.53
62.46
19.14
SHC
LDB
LWB
kW
95
11,400
12,700
8,550
TC
248.9
248.9
57.18
47.35
18.19
249.2
249.2
57.27
53.35
18.19
260.6
218.9
60.15
58.91
18.39
297.0
136.8
67.63
67.30
19.02
234.2
234.2
53.17
45.46
17.94
234.7
233.6
53.37
51.65
17.95
253.0
195.0
57.89
56.99
18.26
289.5
127.1
65.64
65.43
18.89
213.5
213.5
47.38
42.61
17.59
221.2
200.5
49.54
48.62
17.73
241.5
169.3
54.43
53.87
18.07
277.6
116.7
62.45
62.38
18.68
SHC
LDB
LWB
kW
TC
235.4
235.4
58.42
47.92
22.31
235.7
235.7
58.51
53.86
22.32
243.1
211.9
60.78
59.50
22.52
275.6
129.9
68.26
67.90
23.42
222.1
222.1
54.55
46.11
21.95
222.4
222.4
54.65
52.25
21.96
236.4
188.5
58.63
57.71
22.35
269.4
120.4
66.39
66.16
23.25
203.4
203.4
48.93
43.39
21.44
208.0
194.1
50.50
49.53
21.58
226.5
163.0
55.37
54.79
22.08
259.4
110.2
63.41
63.32
22.98
SHC
LDB
LWB
kW
TC
237.0
237.0
58.27
47.85
20.77
237.2
237.2
58.37
53.80
20.77
246.4
213.1
60.67
59.39
20.95
280.4
131.4
68.12
67.77
21.63
223.3
223.3
54.42
46.05
20.50
223.6
223.6
54.52
52.19
20.50
239.3
189.5
58.51
57.59
20.81
273.2
121.6
66.26
66.03
21.48
204.1
204.1
48.81
43.33
20.11
209.9
195.0
50.38
49.39
20.22
228.5
163.7
55.26
54.67
20.60
262.6
111.3
63.25
63.15
21.27
SHC
LDB
LWB
kW
105
11,400
12,700
8,550
TC
238.1
238.1
58.17
47.81
20.32
238.3
238.3
58.26
53.76
20.32
247.2
213.6
60.63
59.36
20.48
281.7
131.8
68.08
67.73
21.11
224.2
224.2
54.31
46.00
20.07
224.5
224.5
54.41
52.15
20.07
240.1
189.9
58.47
57.55
20.36
274.9
122.2
66.18
65.96
20.99
204.8
204.8
48.71
43.28
19.72
210.4
195.2
50.34
49.36
19.82
229.7
164.3
55.18
54.60
20.17
264.1
111.9
63.16
63.07
20.79
SHC
LDB
LWB
kW
TC
223.9
223.9
59.48
48.40
24.63
224.1
224.1
59.56
54.29
24.63
229.1
206.2
61.30
59.96
24.78
259.8
124.8
68.71
68.34
25.68
211.6
211.6
55.76
46.68
24.27
211.8
211.8
55.85
52.76
24.28
223.0
183.2
59.23
58.29
24.61
254.3
115.4
66.95
66.71
25.53
194.2
194.2
50.33
44.08
23.76
196.6
188.6
51.34
50.29
23.85
213.9
157.8
56.15
55.55
24.35
245.2
105.3
64.14
64.03
25.26
SHC
LDB
LWB
kW
TC
225.3
225.3
59.35
48.34
23.05
225.5
225.5
59.43
54.24
23.05
232.2
207.4
61.19
59.86
23.19
264.3
126.2
68.58
68.22
23.86
212.6
212.6
55.64
46.63
22.79
212.9
212.9
55.74
52.71
22.79
225.8
184.2
59.12
58.17
23.05
257.7
116.5
66.83
66.59
23.73
194.8
194.8
50.24
44.03
22.41
198.5
189.3
51.24
50.16
22.48
215.8
158.5
56.05
55.44
22.85
248.3
106.3
63.99
63.88
23.53
SHC
LDB
LWB
kW
115
11,400
12,700
TC
226.4
226.4
59.24
48.30
22.59
226.7
226.7
59.33
54.20
22.60
233.1
207.8
61.15
59.83
22.72
265.6
126.7
68.54
68.18
23.33
213.6
213.6
55.52
46.57
22.36
213.9
213.9
55.62
52.66
22.36
226.5
184.5
59.08
58.14
22.60
259.6
117.2
66.75
66.52
23.22
195.6
195.6
50.11
43.97
22.01
199.0
189.6
51.19
50.13
22.08
217.0
159.1
55.97
55.37
22.42
249.9
106.9
63.90
63.80
23.04
SHC
LDB
LWB
kW
LEGEND
BF
ECT
EDB
—
—
—
Bypass Factor
Entering Condenser Temperature (F)
Entering Dry Bulb (F)
EWB — Entering Wet Bulb (F)
SHC
TC
kW
—
—
—
Sensible Capacity (1000 Btu/hr)
LDB
LWB
—
—
Leaving Dry Bulb (F)
Leaving Wet Bulb (F)
Total Capacity (1000 Btu/hr)
Compressor Motor Power Input (kilowatts)
13
Performance data (cont)
CONDENSER FAN PERFORMANCE
50XCA06 (5 Tons)
ESP (in. wg)
Bhp Rpm
CFM
0.00
0.10
0.20
0.30
0.40
0.50
Rpm
Bhp
0.19
0.19
0.19
0.19
0.20
0.20
0.20
0.21
0.21
0.21
0.23
0.26
0.29
Rpm
594
588
582
576
570
564
573
589
605
622
638
655
672
Bhp
0.19
0.19
0.19
0.19
0.20
0.20
0.22
0.24
0.26
0.28
0.31
0.34
0.37
Rpm
594
598
610
623
636
649
662
676
690
704
719
734
749
Bhp
0.25
0.27
0.29
0.31
0.33
0.36
0.38
0.41
0.43
0.46
0.49
0.53
0.56
Rpm
755
764
773
783
793
803
814
825
836
848
860
872
885
Bhp
0.33
0.35
0.37
0.40
0.42
0.44
0.47
0.50
0.53
0.56
0.59
0.63
0.67
Rpm
828
836
844
852
861
870
880
890
901
911
923
934
946
Bhp
0.42
0.44
0.46
0.49
0.51
0.54
0.57
0.60
0.63
0.66
0.70
0.74
0.78
1800
1900
2000
2100
2200
2300
2400
2500
2600
2600
2800
2900
3000
594
588
582
576
570
564
558
552
546
540
550
570
590
0.19
0.20
0.21
0.23
0.25
0.27
0.29
0.32
0.34
0.37
0.40
0.43
0.46
676
686
696
707
718
730
742
754
766
779
792
806
819
50XCA06 (5 Tons) (cont)
ESP (in. wg)
Bhp Rpm
CFM
0.60
0.70
0.80
0.90
1.00
1.10
Rpm
896
902
909
917
925
933
942
951
961
971
982
992
1003
Bhp
0.51
0.54
0.56
0.58
0.61
0.64
0.67
0.70
0.74
0.77
0.81
0.85
0.89
Rpm
960
965
971
978
Bhp
0.61
0.64
0.66
0.69
0.72
0.75
0.78
0.81
0.85
0.89
0.93
0.97
1.01
Rpm
1020
1025
1030
1036
1042
1049
1057
1064
1073
1081
1090
1100
1109
Bhp
—
Rpm
—
—
Bhp
—
—
Rpm
—
—
Bhp
—
—
1800
1900
2000
2100
2200
2300
2400
2500
2600
2700
2800
2900
3000
0.72
0.74
0.77
0.80
0.83
0.86
0.89
0.93
0.96
1.00
1.05
1.09
1.13
—
1082
1086
1091
1097
1103
1110
1117
1125
1133
1141
1150
1159
0.86
0.88
0.91
0.94
0.98
1.01
1.05
1.09
1.13
1.17
1.21
1.26
1140
1145
1150
1155
1161
1168
1175
1183
1190
1199
1207
1.00
1.03
1.06
1.10
1.13
1.17
1.21
1.25
1.30
1.34
1.39
—
—
1196
1201
1206
1211
1217
1224
1231
1238
1246
—
1.16
1.19
1.22
1.26
1.30
1.34
1.39
1.43
1.48
—
985
993
1001
1009
1018
1028
1037
1047
1057
LEGEND
Bhp — Brake Horsepower
ESP — External Static Pressure
NOTES:
3. Interpolation is permitted; extrapolation is not.
4. Fan performance is based on filter, unit casing, and wet coil
losses.
1. Units are available with several motor hp options. Refer to the
physical data table.
2. Static pressure losses must be applied to external static pressure
before entering the fan performance table.
14
CONDENSER FAN PERFORMANCE (cont)
50XCA08 (71/2 Tons)
ESP (in. wg)
CFM
0.00
Rpm
0.10
Rpm
0.20
Rpm
0.30
Rpm
0.40
Rpm
807
824
842
860
879
898
918
938
0.50
Rpm
872
887
903
920
938
956
974
993
1012
1032
1053
1073
1094
1116
1138
0.60
Rpm
932
946
961
977
0.70
Rpm
Bhp
0.25
0.26
0.27
0.28
0.31
0.36
0.42
0.47
0.54
0.60
0.68
0.75
0.84
0.93
1.03
Bhp
0.25
0.27
0.31
0.35
0.40
0.45
0.51
0.57
0.64
0.71
0.79
0.87
0.96
1.05
1.15
Bhp
0.32
0.36
0.40
0.45
0.50
0.55
0.61
0.68
0.75
0.82
0.90
0.99
1.08
1.18
1.28
Bhp
0.41
0.45
0.49
0.54
0.60
0.66
0.72
0.79
0.86
0.94
1.02
1.11
1.21
1.31
1.42
Bhp
0.50
0.55
0.59
0.65
0.71
0.77
0.83
0.91
0.98
1.06
1.15
1.25
1.34
1.45
1.56
Bhp
0.60
0.65
0.70
0.76
0.82
0.88
0.95
1.03
1.11
1.19
1.29
1.38
1.49
1.59
1.71
Bhp
0.70
0.75
0.81
0.87
0.94
1.00
1.08
1.16
1.24
1.33
1.42
1.52
1.63
1.74
1.86
Bhp
0.81
0.87
0.93
0.99
1.06
1.13
1.21
1.29
1.37
1.47
1.56
1.67
1.78
1.89
—
2500
2650
2800
2950
3100
3250
3400
3550
3700
3850
4000
4150
4300
4450
4600
594
588
582
576
597
625
654
683
712
741
770
799
828
856
885
594
600
625
650
675
700
726
752
778
805
831
858
885
912
939
662
682
704
726
748
771
794
818
842
866
890
915
940
966
991
738
757
776
795
816
836
858
879
901
924
947
970
994
1017
1042
988
1001
1016
1030
1046
1062
1078
1095
1113
1131
1150
1168
1188
1207
—
993
1010
1027
1045
1064
1083
1102
1122
1142
1162
1183
958
979
1001
1023
1045
1068
1090
50XCA08 (71/2 Tons) (cont)
ESP (in. wg)
1.10
CFM
0.80
Rpm
0.90
1.00
Bhp
1.20
Rpm Bhp
1.30
Rpm Bhp
1.40
Rpm Bhp
Bhp
0.93
0.98
1.05
1.11
1.18
1.26
1.34
1.42
1.51
1.61
1.71
1.82
1.93
—
Rpm
1094
1105
1117
1131
1144
1159
1174
1189
1206
1222
1239
1257
—
Bhp
1.05
1.11
1.17
1.24
1.31
1.39
1.47
1.56
1.65
1.75
1.86
1.97
—
Rpm
1144
1154
1166
1178
1191
1205
1219
1234
1249
1265
—
Rpm
1192
1201
1212
1223
1236
1249
1263
1277
1292
—
Bhp
1.30
1.36
1.43
1.50
1.58
1.67
1.75
1.85
1.95
—
2500
2650
2800
2950
3100
3250
3400
3550
3700
3850
4000
4150
4300
4450
4600
1042
1054
1068
1081
1096
1111
1127
1143
1160
1178
1195
1213
1232
—
1.17
1.23
1.30
1.37
1.44
1.53
1.61
1.70
1.80
1.90
—
1238
1247
1257
1268
1279
1292
1305
1319
—
1.43
1.50
1.57
1.64
1.72
1.81
1.90
2.00
—
1283
1291
1301
1311
1322
1333
—
1.57
1.64
1.71
1.79
1.87
1.96
—
1327
1334
1343
1353
1.72
1.78
1.86
1.94
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
LEGEND
Bhp — Brake Horsepower
ESP — External Static Pressure
NOTES:
3. Interpolation is permitted; extrapolation is not.
4. Fan performance is based on filter, unit casing, and wet coil
losses.
1. Units are available with several motor hp options. Refer to the
physical data table.
2. Static pressure losses must be applied to external static pressure
before entering the fan performance table.
15
Performance data (cont)
CONDENSER FAN PERFORMANCE (cont)
50XCA12 (10 Tons)
ESP (in. wg)
0.20 0.30
Rpm Rpm
CFM
0.00
0.00
Rpm
0.10
Rpm
0.40
Rpm
0.50
Rpm
846
861
875
890
905
921
936
952
0.60
Rpm
—
Rpm
594
588
582
601
623
646
668
690
713
735
757
779
802
824
846
Bhp
0.86
0.91
0.95
1.06
1.18
1.31
1.45
1.60
1.76
1.93
2.11
2.30
2.51
2.72
2.95
Bhp
0.87
0.97
1.08
1.20
1.33
1.46
1.61
1.76
1.93
2.11
2.29
2.49
2.70
2.92
3.15
Bhp
1.00
1.11
1.23
1.35
1.48
1.62
1.77
1.93
2.10
2.28
2.47
2.68
2.89
3.12
3.35
Bhp
1.14
1.25
1.37
1.50
1.64
1.78
1.94
2.10
2.28
2.46
2.66
2.87
3.09
3.32
3.56
Bhp
1.29
1.40
1.53
1.66
1.80
1.95
2.11
2.28
2.46
2.65
2.85
3.06
3.29
3.52
3.77
Bhp
1.44
1.56
1.68
1.82
1.97
2.12
2.29
2.46
2.64
2.84
3.04
3.26
3.49
3.73
3.98
Bhp
1.59
1.72
1.85
1.99
2.14
2.30
2.47
2.64
2.83
3.03
3.24
3.46
3.70
3.94
4.20
Bhp
—
—
4800
5000
5200
5400
5600
5800
6000
6200
6400
6600
6800
7000
7200
7400
7600
598
618
638
658
679
699
720
740
761
782
803
824
845
866
887
655
673
692
711
729
749
768
787
807
827
846
866
887
907
927
708
725
742
759
777
795
813
832
850
869
888
907
926
945
965
757
773
789
805
822
839
856
874
891
909
927
946
964
983
1001
803
818
833
849
865
881
897
914
931
948
965
983
1001
1019
1037
—
915
930
944
959
974
989
1005
1021
1037
1053
1070
1087
1104
2.02
2.16
2.32
2.48
2.65
2.83
3.03
3.23
3.44
3.67
3.91
4.15
4.42
969
985
1002
1019
1036
1053
1071
50XCA12 (10 Tons) (cont)
ESP (in. wg)
1.00
CFM
0.70
Rpm
—
—
—
0.80
0.90
Bhp
1.10
Rpm Bhp
1.20
Rpm Bhp
1.30
Rpm Bhp
Bhp
—
—
—
—
Rpm
—
Bhp
—
Rpm
—
—
—
—
—
—
—
Rpm
—
Bhp
—
4800
5000
5200
5400
5600
5800
6000
6200
6400
6600
6800
7000
7200
7400
7600
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
981
996
2.50
2.67
2.84
3.03
3.23
3.43
3.65
3.88
4.12
4.37
4.64
—
—
—
—
—
—
—
—
1031
1045
1060
1074
1089
1104
1120
1135
1151
1167
2.86
3.04
3.23
3.43
3.64
3.86
4.09
4.34
4.60
4.87
—
—
—
—
—
—
—
—
—
—
1010
1025
1040
1056
1071
1087
1103
1119
1136
—
—
—
—
—
—
—
—
1093
1107
1122
1136
1151
1166
1182
1197
3.43
3.64
3.85
4.08
4.31
4.56
4.82
5.10
—
—
—
—
—
—
—
—
1139
1153
1168
1182
1197
1212
1227
3.85
4.07
4.30
4.54
4.79
5.06
5.33
—
—
—
—
—
—
—
—
—
—
—
—
1198
1212
1226
1241
1256
4.52
4.77
5.02
5.29
5.57
—
—
—
—
1241
1255
1270
1284
5.00
5.26
5.53
5.82
—
—
1284
1298
1312
5.50
5.78
6.06
LEGEND
Bhp — Brake Horsepower
ESP — External Static Pressure
NOTES:
3. Interpolation is permitted; extrapolation is not.
4. Fan performance is based on filter, unit casing, and wet coil
losses.
1. Units are available with several motor hp options. Refer to the
physical data table.
2. Static pressure losses must be applied to external static pressure
before entering the fan performance table.
16
CONDENSER FAN PERFORMANCE (cont)
50XCA14 (12 Tons)
ESP (in. wg)
CFM
0.00
0.10
Rpm
0.20
Rpm
0.30
Rpm
0.40
Rpm
0.50
Rpm
0.60
Rpm
0.70
Rpm
Rpm
494
488
482
476
470
464
458
452
446
458
472
486
500
514
528
Bhp
1.50
1.52
1.53
1.55
1.56
1.58
1.59
1.61
1.62
1.77
1.93
2.11
2.29
2.49
2.70
Bhp
1.50
1.52
1.53
1.55
1.56
1.58
1.59
1.66
1.81
1.97
2.14
2.33
2.52
2.72
2.93
Bhp
1.50
1.52
1.53
1.55
1.56
1.59
1.73
1.88
2.04
2.20
2.38
2.56
2.76
2.97
3.19
Bhp
1.50
1.52
1.53
1.56
1.68
1.82
1.96
2.12
2.28
2.45
2.63
2.82
3.02
3.23
3.46
Bhp
1.50
1.56
1.67
1.79
1.93
2.07
2.21
2.37
2.54
2.71
2.90
3.09
3.30
3.52
3.74
Bhp
1.68
1.80
1.92
2.05
2.18
2.33
2.48
2.64
2.81
2.99
3.18
3.38
3.59
3.81
4.05
Bhp
1.93
2.05
2.17
2.31
2.45
2.60
2.76
2.92
3.10
3.28
3.48
3.68
3.90
4.13
4.36
Bhp
2.18
2.30
2.44
2.58
2.73
2.88
3.04
3.22
3.40
3.59
3.79
4.00
4.22
4.45
4.69
6000
6250
6500
6750
7000
7250
7500
7750
8000
8250
8500
8750
9000
9250
9500
494
488
482
476
470
464
458
459
472
485
498
512
525
538
551
494
488
482
476
470
466
477
489
501
513
526
538
550
563
575
494
488
482
477
488
498
509
519
530
542
553
564
576
588
600
494
494
502
511
520
530
540
549
560
570
580
591
602
613
624
521
528
536
544
552
561
570
579
588
598
608
618
628
638
649
554
561
568
576
583
591
600
608
617
626
635
644
654
663
673
586
592
599
606
613
621
628
636
644
653
661
670
679
688
697
50XCA14 (12 Tons) (cont)
ESP (in. wg)
1.10
CFM
0.80
Rpm
0.90
1.00
Bhp
1.20
Rpm Bhp
1.30
Rpm Bhp
1.40
Rpm Bhp
Bhp
2.43
2.57
2.71
2.86
3.01
3.17
3.34
3.52
3.71
3.90
4.11
4.32
—
Rpm
644
650
656
663
669
676
683
690
697
705
712
720
—
Bhp
2.69
2.84
2.98
3.14
3.30
3.47
3.65
3.83
4.02
4.22
4.44
4.66
—
Rpm
671
677
683
689
696
702
709
715
722
730
737
744
—
Rpm
697
703
709
715
721
727
734
740
747
754
—
Bhp
3.23
3.39
3.55
3.72
3.90
4.08
4.27
4.47
4.67
4.89
—
6000
6250
6500
6750
7000
7250
7500
7750
8000
8250
8500
8750
9000
9250
9500
616
622
628
635
642
649
656
663
671
679
687
695
—
2.96
3.11
3.27
3.43
3.60
3.77
3.96
4.15
4.35
4.55
4.77
5.00
—
722
728
734
739
745
752
758
764
—
3.50
3.67
3.84
4.02
4.20
4.39
4.59
4.80
—
746
751
757
763
769
775
781
—
3.78
3.95
4.13
4.32
4.51
4.71
4.91
—
768
774
780
786
792
—
4.06
4.24
4.43
4.62
4.82
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
LEGEND
Bhp — Brake Horsepower
ESP — External Static Pressure
NOTES:
3. Interpolation is permitted; extrapolation is not.
4. Fan performance is based on filter, unit casing, and wet coil
losses.
1. Units are available with several motor hp options. Refer to the
physical data table.
2. Static pressure losses must be applied to external static pressure
before entering the fan performance table.
17
Performance data (cont)
CONDENSER FAN PERFORMANCE (cont)
50XCA16 (15 Tons)
ESP (in. wg)
0.30 0.40
Rpm Rpm
CFM
0.00
0.10
Rpm
0.20
Rpm
0.50
Rpm
0.60
Rpm
0.70
Rpm
Rpm
494
488
482
476
470
464
458
452
458
472
486
500
514
528
542
Bhp
1.56
1.57
1.59
1.61
1.62
1.64
1.65
1.67
1.77
1.93
2.11
2.29
2.49
2.70
2.92
Bhp
1.56
1.57
1.59
1.61
1.62
1.64
1.66
1.81
1.97
2.14
2.33
2.52
2.72
2.93
3.16
Bhp
1.56
1.57
1.59
1.61
1.62
1.73
1.88
2.04
2.20
2.38
2.56
2.76
2.97
3.19
3.42
Bhp
1.56
1.57
1.59
1.68
1.82
1.96
2.12
2.28
2.45
2.63
2.82
3.02
3.23
3.46
3.69
Bhp
1.56
1.67
1.79
1.93
2.07
2.21
2.37
2.54
2.71
2.90
3.09
3.30
3.52
3.74
3.98
Bhp
1.80
1.92
2.05
2.18
2.33
2.48
2.64
2.81
2.99
3.18
3.38
3.59
3.81
4.05
4.29
Bhp
2.05
2.17
2.31
2.45
2.60
2.76
2.92
3.10
3.28
3.48
3.68
3.90
4.13
4.36
4.61
Bhp
2.30
2.44
2.58
2.73
2.88
3.04
3.22
3.40
3.59
3.79
4.00
4.22
4.45
4.69
4.94
6250
6500
6750
7000
7250
7500
7750
8000
8250
8500
8750
9000
9250
9500
9750
494
488
482
476
470
464
459
472
485
498
512
525
538
551
564
494
488
482
476
470
477
489
501
513
526
538
550
563
575
588
494
488
482
488
498
509
519
530
542
553
564
576
588
600
612
494
502
511
520
530
540
549
560
570
580
591
602
613
624
635
528
536
544
552
561
570
579
588
598
608
618
628
638
649
659
561
568
576
583
591
600
608
617
626
635
644
654
663
673
683
592
599
606
613
621
628
636
644
653
661
670
679
688
697
707
50XCA16 (15 Tons) (cont)
ESP (in. wg)
1.10
CFM
0.80
Rpm
0.90
1.00
Bhp
1.20
Rpm Bhp
1.30
Rpm Bhp
1.40
Rpm Bhp
Bhp
2.57
2.71
2.86
3.01
3.17
3.34
3.52
3.71
3.90
4.11
4.32
4.55
4.78
—
Rpm
650
656
663
669
676
683
690
697
705
712
720
728
—
Bhp
2.84
2.98
3.14
3.30
3.47
3.65
3.83
4.02
4.22
4.44
4.66
4.89
—
Rpm
677
683
689
696
702
709
715
722
730
737
744
—
Rpm
703
709
715
721
727
734
740
747
754
—
Bhp
3.39
3.55
3.72
3.90
4.08
4.27
4.47
4.67
4.89
—
6250
6500
6750
7000
7250
7500
7750
8000
8250
8500
8750
9000
9250
9500
9750
622
628
635
642
649
656
663
671
679
687
695
704
712
—
3.11
3.27
3.43
3.60
3.77
3.96
4.15
4.35
4.55
4.77
5.00
—
728
734
739
745
752
758
764
—
3.67
3.84
4.02
4.20
4.39
4.59
4.80
—
751
757
763
769
775
781
—
3.95
4.13
4.32
4.51
4.71
4.91
—
774
780
786
792
—
4.24
4.43
4.62
4.82
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
LEGEND
Bhp — Brake Horsepower
ESP — External Static Pressure
NOTES:
3. Interpolation is permitted; extrapolation is not.
4. Fan performance is based on filter, unit casing, and wet coil
losses.
1. Units are available with several motor hp options. Refer to the
physical data table.
2. Static pressure losses must be applied to external static pressure
before entering the fan performance table.
18
CONDENSER FAN PERFORMANCE (cont)
50XCA24 (20 Tons)
ESP (in. wg)
CFM
0.00
0.10
Rpm
0.20
Rpm
0.30
Rpm
0.40
Rpm
0.50
Rpm
0.60
Rpm
837
852
867
882
898
914
930
946
962
979
995
1012
1029
1046
1063
0.70
Rpm
870
885
900
915
930
945
961
976
Rpm
594
606
626
647
668
688
709
730
750
771
792
812
833
854
874
Bhp
1.60
1.72
1.90
2.09
2.30
2.52
2.75
3.00
3.26
3.54
3.83
4.14
4.46
4.80
5.16
Bhp
1.84
2.02
2.22
2.42
2.64
2.87
3.11
3.37
3.64
3.93
4.23
4.55
4.88
5.24
5.60
Bhp
2.14
2.33
2.54
2.75
2.98
3.22
3.47
3.74
4.02
4.32
4.64
4.96
5.31
5.67
6.05
Bhp
2.44
2.64
2.85
3.08
3.32
3.57
3.83
4.11
4.41
4.71
5.04
5.38
5.73
6.10
6.49
Bhp
2.74
2.95
3.18
3.41
3.66
3.92
4.20
4.49
4.79
5.11
5.44
5.79
6.16
6.54
6.94
Bhp
3.04
3.27
3.50
3.74
4.00
4.27
4.56
4.86
5.17
5.50
5.85
6.21
6.58
6.97
7.38
Bhp
3.35
3.58
3.82
4.08
4.35
4.63
4.92
5.23
5.56
5.90
6.25
6.62
7.01
7.41
7.83
Bhp
3.66
3.90
4.15
4.41
4.69
4.99
5.29
5.61
5.95
6.29
6.66
7.04
7.43
7.85
8.28
8,500
8,800
9,100
9,400
9,700
10,000
10,300
10,600
10,900
11,200
11,500
11,800
12,100
12,400
12,700
636
655
674
693
713
732
752
771
791
810
830
850
869
889
909
682
700
718
736
754
773
791
810
829
847
866
885
904
923
942
724
741
758
776
793
811
829
846
864
882
901
919
937
956
974
764
780
797
813
830
847
864
881
898
916
933
951
969
987
1005
801
817
833
849
865
881
898
914
931
948
965
982
999
1017
1034
992
1008
1024
1041
1057
1074
1090
50XCA24 (20 Tons) (cont)
ESP (in. wg)
1.10
CFM
0.80
Rpm
902
917
931
946
960
975
990
1006
1021
1037
1053
1069
1085
1101
1117
0.90
1.00
Bhp
1.20
Rpm Bhp
1.30
Rpm Bhp
1.40
Rpm Bhp
Bhp
3.97
4.22
4.48
4.75
5.04
5.34
5.66
5.99
6.33
6.69
7.07
7.46
7.86
8.29
8.73
Rpm
933
Bhp
4.28
4.54
4.81
5.09
5.39
5.70
6.03
6.37
6.72
7.09
7.48
7.88
8.29
8.73
9.18
Rpm
963
Rpm
992
Bhp
4.91
5.19
5.48
5.78
6.10
6.43
6.77
7.13
7.51
7.90
8.30
8.72
9.16
9.61
—
8,500
8,800
9,100
9,400
9,700
10,000
10,300
10,600
10,900
11,200
11,500
11,800
12,100
12,400
12,700
4.59
4.86
5.14
5.44
5.74
6.07
6.40
6.75
7.11
7.49
7.89
8.30
8.73
9.17
9.63
1020
1032
1046
1059
1072
1086
1100
1114
1128
1143
1157
1172
1187
—
5.22
5.51
5.81
6.13
6.45
6.80
7.15
7.52
7.90
8.30
8.71
9.15
9.59
—
1046
1059
1072
1085
1098
1112
1126
1139
1153
1168
1182
1196
—
5.54
5.84
6.15
6.48
6.81
7.16
7.53
7.91
8.30
8.71
9.13
9.57
—
1073
1085
1098
1111
1124
1137
1150
1164
1178
1192
1206
5.87
6.17
6.49
6.83
7.17
7.53
7.91
8.29
8.70
9.11
9.55
947
961
976
990
1005
1018
1032
1046
1060
1074
1088
1103
1117
1132
1147
1162
1178
—
975
990
1004
1018
1032
1047
1062
1076
1091
1106
1122
1137
1153
1169
1004
1019
1034
1049
1064
1080
1096
1111
1127
1143
1220 10.00
—
—
—
—
—
—
—
—
—
—
—
—
LEGEND
Bhp — Brake Horsepower
ESP — External Static Pressure
NOTES:
3. Interpolation is permitted; extrapolation is not.
4. Fan performance is based on filter, unit casing, and wet coil
losses.
1. Units are available with several motor hp options. Refer to the
physical data table.
2. Static pressure losses must be applied to external static pressure
before entering the fan performance table.
19
Performance data (cont)
EVAPORATOR FAN PERFORMANCE
50XCA06 (5 Tons)
ESP (in. wg)
0.40 0.50
Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp
CFM
0.00
0.10
0.20
0.30
0.60
0.70
0.80
0.90
1500
1600
1700
1800
1900
2000
2100
2200
2300
2400
2500
594 0.23 594 0.23 594 0.23 612 0.24 670 0.29 727 0.34 785 0.40 842 0.46
588 0.24 588 0.24 588 0.24 630 0.28 684 0.32 738 0.37 793 0.43 847 0.49
582 0.26 582 0.26 596 0.27 650 0.31 701 0.36 752 0.41 803 0.47 854 0.53
576 0.28 576 0.28 618 0.31 670 0.36 719 0.40 767 0.45 815 0.51 863 0.57
570 0.29 586 0.31 641 0.35 691 0.40 738 0.45 784 0.50 829 0.56 875 0.62
564 0.31 612 0.35 664 0.40 712 0.45 757 0.50 801 0.56 845 0.61 888 0.67
593 0.36 637 0.40 687 0.46 734 0.51 778 0.56 820 0.61 862 0.67 903 0.73
621 0.42 663 0.46 710 0.51 756 0.57 799 0.62 840 0.68 879 0.74 919 0.80
649 0.48 689 0.52 734 0.58 779 0.63 820 0.69 860 0.75 898 0.81 936 0.87
677 0.54 715 0.59 759 0.64 801 0.70 842 0.76 880 0.82 918 0.88 954 0.95
897 0.53 950 0.60
900 0.56 952 0.64
905 0.60 955 0.67
911 0.64 959 0.71
920 0.69 966 0.76
931 0.74 975 0.81
944 0.80 985 0.87
958 0.86 997 0.93
974 0.93 1011 1.00
990 1.01 1026 1.08
705 0.61 742 0.66 783 0.72 824 0.78 864 0.84 902 0.90 938 0.97 973 1.03 1008 1.10 1043 1.17
50XCA06 (5 Tons) (cont)
ESP (in. wg)
1.40 1.50
Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp
CFM
1.00
1.10
1.20
1.30
1.60
1.70
1.80
1.90
1500 1000 0.68 1047 0.76 1092 0.84 1134 0.93 1174 1.01 1213 1.10 1249 1.19 1284 1.28 1318 1.36 1351 1.46
1600 1001 0.71 1049 0.80 1094 0.88 1137 0.97 1178 1.06 1218 1.14 1255 1.24 1291 1.33 1326 1.42 1359 1.52
1700 1004 0.75 1051 0.83 1096 0.92 1139 1.01 1181 1.10 1221 1.19 1259 1.28 1296 1.38 1331 1.48 1365 1.57
1800 1007 0.79 1053 0.87 1098 0.96 1141 1.05 1183 1.14 1223 1.24 1262 1.33 1300 1.43
1900 1011 0.83 1056 0.92 1100 1.00 1143 1.09 1185 1.19 1225 1.28 1264 1.38 1302 1.48
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
2000 1018 0.89 1061 0.97 1104 1.05 1146 1.14 1187 1.24 1227 1.33 1266 1.43
2100 1026 0.94 1068 1.02 1109 1.11 1150 1.20 1190 1.29 1230 1.39 1268 1.49
—
—
—
—
—
—
—
—
—
—
—
—
2200 1037 1.01 1076 1.09 1116 1.17 1155 1.26 1194 1.35 1233 1.45
—
—
—
—
—
—
—
—
2300 1049 1.08 1087 1.16 1124 1.24 1162 1.33 1200 1.42
2400 1062 1.16 1098 1.23 1135 1.32 1171 1.40 1207 1.49
2500 1077 1.24 1112 1.32 1147 1.40 1181 1.48 1216 1.57
—
—
—
—
—
—
LEGEND
Bhp — Brake Horsepower
ESP — External Static Pressure
NOTES:
3. Interpolation is permitted; extrapolation is not.
4. Fan performance is based on filter, unit casing, and wet coil
losses.
1. Units are available with several motor hp options. Refer to the
physical data table.
2. Static pressure losses must be applied to external static pressure
before entering the fan performance table.
20
EVAPORATOR FAN PERFORMANCE (cont)
50XCA08 (71/2 Tons)
ESP (in. wg)
CFM
0.00
0.10
0.20
0.30
0.40
0.50
0.60
0.70
0.80
0.90
Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp
2200
2400
2600
2800
3000
3200
3400
3600
3800
594 0.26 594 0.26 594 0.26 644 0.31 707 0.38 766 0.45 820 0.53
588 0.28 588 0.28 602 0.29 667 0.36 728 0.43 785 0.51 838 0.59
582 0.29 582 0.29 630 0.34 692 0.42 750 0.49 805 0.58 857 0.66
576 0.31 597 0.33 659 0.41 718 0.48 774 0.56 827 0.65 877 0.74
570 0.33 631 0.40 690 0.48 746 0.55 799 0.64 850 0.73 898 0.82
606 0.40 665 0.48 721 0.55 774 0.64 825 0.73 874 0.82 921 0.91
644 0.48 699 0.56 752 0.64 803 0.73 852 0.82 899 0.92 944 1.02
871 0.62
888 0.68
906 0.75
925 0.83
945 0.92
918 0.70
935 0.77
952 0.84
970 0.93 1013 1.03
989 1.02 1032 1.12
963 0.79
979 0.86
996 0.94
966 1.01 1009 1.12 1051 1.22
988 1.12 1030 1.23 1071 1.34
681 0.57 734 0.66 785 0.74 833 0.83 880 0.93 925 1.03 969 1.13 1011 1.24 1052 1.35 1092 1.46
719 0.67 770 0.76 818 0.85 864 0.95 909 1.04 952 1.15 995 1.25 1035 1.36 1075 1.48 1114 1.59
50XCA08 (71/2 Tons) (cont)
ESP (in. wg)
1.40 1.50
Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp
2200 1006 0.88 1046 0.97 1085 1.07 1122 1.17 1158 1.27 1193 1.37 1226 1.47 1258 1.58
CFM
1.00
1.10
1.20
1.30
1.60
1.70
1.80
1.90
—
—
—
—
2400 1022 0.96 1062 1.05 1101 1.15 1138 1.26 1174 1.36 1209 1.46 1242 1.57 1274 1.68 1306 1.79 1336 1.90
2600 1038 1.04 1078 1.14 1117 1.24 1154 1.35 1190 1.46 1224 1.57 1258 1.68 1290 1.79 1322 1.91 1352 2.03
2800 1055 1.13 1095 1.23 1133 1.34 1170 1.45 1206 1.56 1240 1.68 1274 1.79 1306 1.91 1337 2.03 1368 2.15
3000 1073 1.23 1112 1.34 1150 1.45 1187 1.56 1222 1.68 1256 1.79 1290 1.91 1322 2.04 1353 2.16 1384 2.29
3200 1091 1.33 1130 1.45 1167 1.56 1203 1.68 1239 1.80 1273 1.92 1306 2.04 1338 2.17 1369 2.30 1400 2.43
3400 1110 1.45 1148 1.57 1185 1.68 1221 1.81 1256 1.93 1290 2.05 1322 2.18 1354 2.31 1385 2.44 1416 2.58
3600 1130 1.58 1168 1.69 1204 1.82 1239 1.94 1274 2.07 1307 2.20 1340 2.33 1371 2.46 1402 2.60 1432 2.74
3800 1152 1.71 1188 1.84 1224 1.96 1258 2.09 1292 2.22 1325 2.35 1357 2.49 1389 2.62 1419 2.76 1449 2.90
50XCA08 (71/2 Tons) (cont)
ESP (in. wg)
CFM
2.00
2.10
2.20
2.30
2.40
Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp
2200
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
2400 1366 2.02 1395 2.13
2600 1382 2.14 1411 2.26 1439 2.39 1467 2.51 1494 2.63
2800 1398 2.27 1427 2.40 1455 2.52 1483 2.65 1510 2.78
3000 1414 2.41 1443 2.54 1471 2.67 1499 2.80 1526 2.94
3200 1429 2.56 1459 2.69 1487 2.82 1515 2.96
—
—
—
—
—
—
—
—
3400 1445 2.71 1474 2.85 1503 2.99
—
—
—
—
—
—
3600 1462 2.87
—
—
—
—
—
—
—
—
3800
—
—
LEGEND
Bhp — Brake Horsepower
ESP — External Static Pressure
NOTES:
3. Interpolation is permitted; extrapolation is not.
4. Fan performance is based on filter, unit casing, and wet coil
losses.
1. Units are available with several motor hp options. Refer to the
physical data table.
2. Static pressure losses must be applied to external static pressure
before entering the fan performance table.
21
Performance data (cont)
EVAPORATOR FAN PERFORMANCE (cont)
50XCA012 (10 Tons)
ESP (in. wg)
0.30 0.40
Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp
CFM
0.00
0.00
0.10
0.20
0.50
0.60
0.70
0.80
3000
3200
3400
3600
3800
4000
4200
4400
4600
4800
5000
594 0.50 594 0.50 594 0.50 637 0.56 686 0.64 733 0.71 776 0.79 818 0.86
858 0.94
874 1.05
891 1.17
909 1.30 944 1.39
927 1.44
896 1.02
911 1.13
928 1.26
588 0.54 588 0.54 608 0.57 659 0.65 707 0.73 752 0.81 794 0.89
582 0.58 582 0.58 633 0.66 682 0.74 728 0.83 772 0.91 813 1.00
576 0.62 608 0.67 658 0.76 705 0.85 750 0.94 792 1.03 833 1.12
584 0.68 636 0.78 684 0.87 730 0.97 773 1.06 814 1.16 853 1.25
615 0.80 664 0.90 711 1.00 754 1.10 796 1.20 836 1.29 874 1.39
646 0.92 693 1.03 737 1.13 779 1.24 820 1.34 858 1.45 896 1.55
677 1.06 721 1.17 764 1.28 805 1.39 844 1.50 882 1.61 918 1.72
707 1.21 750 1.33 791 1.44 831 1.56 869 1.67 905 1.78 940 1.90
738 1.38 779 1.50 819 1.62 857 1.74 894 1.86 929 1.97 963 2.09
835 0.97
853 1.08
872 1.21
891 1.35
911 1.49 946 1.59
931 1.65
953 1.83
962 1.54
980 1.69
999 1.86
966 1.76
986 1.94 1019 2.05
974 2.01 1007 2.13 1039 2.24
996 2.21 1029 2.33 1060 2.45
769 1.56 809 1.68 847 1.81 884 1.93 919 2.06 954 2.18 987 2.30 1019 2.43 1051 2.55 1081 2.68
50XCA12 (10 Tons) (cont)
ESP (in. wg)
1.30 1.40
Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp
CFM
0.90
1.00
1.10
1.20
1.50
1.60
1.70
1.80
3000
3200
3400
3600
3800
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
947 1.21
963 1.34
997 1.43 1030 1.52
979 1.48 1013 1.57 1045 1.67 1077 1.76
996 1.63 1029 1.73 1061 1.83 1092 1.92 1122 2.02 1152 2.12
4000 1014 1.80 1046 1.90 1077 2.00 1108 2.10 1137 2.20 1166 2.31 1195 2.41 1223 2.51
4200 1032 1.97 1063 2.08 1094 2.18 1124 2.29 1153 2.40 1182 2.50 1210 2.61 1237 2.72 1264 2.83
4400 1051 2.16 1082 2.27 1112 2.38 1141 2.49 1170 2.60 1198 2.71 1226 2.83 1253 2.94 1279 3.05 1305 3.17
4600 1070 2.36 1101 2.47 1130 2.59 1159 2.70 1188 2.82 1215 2.94 1242 3.05 1269 3.17 1295 3.29 1320 3.41
4800 1090 2.57 1120 2.69 1149 2.81 1178 2.93 1205 3.05 1233 3.18 1259 3.30 1285 3.42 1311 3.54 1336 3.66
5000 1111 2.80 1140 2.93 1169 3.05 1196 3.18 1224 3.30 1251 3.43 1277 3.55 1302 3.68 1328 3.81 1353 3.94
LEGEND
Bhp — Brake Horsepower
ESP — External Static Pressure
NOTES:
3. Interpolation is permitted; extrapolation is not.
4. Fan performance is based on filter, unit casing, and wet coil
losses.
1. Units are available with several motor hp options. Refer to the
physical data table.
2. Static pressure losses must be applied to external static pressure
before entering the fan performance table.
22
EVAPORATOR FAN PERFORMANCE (cont)
50XCA14 (12 Tons)
ESP (in. wg)
CFM
0.00
0.10
0.20
0.30
0.40
0.50
0.60
0.70
0.80
0.90
Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp
3500
3700
3900
4100
4300
4500
4700
4900
5100
5300
5500
5700
5900
6100
594 0.62 594 0.62
588 0.66 622 0.72
600 0.74 650 0.84
630 0.86 678 0.96 724 1.06 767 1.16
661 0.99 707 1.10
692 1.14 736 1.25
645 0.71 694 0.80
671 0.82 718 0.91
697 0.93 742 1.03
739 0.88
761 1.00
784 1.13
808 1.27
832 1.42
856 1.58
881 1.76
906 1.95
782 0.97
803 1.09
825 1.22
847 1.37
870 1.53
893 1.69
917 1.88
941 2.08
966 2.29
823 1.06
843 1.18
863 1.32
885 1.47
907 1.63
929 1.81
952 1.99
862 1.15
881 1.28
901 1.42
921 1.57
942 1.74
963 1.92
900 1.23
918 1.37
937 1.52
956 1.68
976 1.85 1009 1.95
997 2.03 1029 2.14
936 1.32
953 1.46
971 1.61
990 1.78
751 1.20 792 1.31
778 1.36 818 1.47
723 1.29 765 1.41 805 1.53 844 1.64
985 2.11 1018 2.23 1049 2.35
753 1.47 794 1.59
784 1.65 823 1.78
815 1.86 853 1.99
846 2.07 882 2.21
876 2.31 911 2.45
907 2.56 941 2.71
833 1.71 870 1.83
861 1.91 897 2.03 932 2.16
889 2.12 924 2.25
917 2.35 951 2.48
945 2.59 978 2.73 1011 2.88 1042 3.02 1072 3.16 1102 3.30 1131 3.44 1159 3.58
974 2.85 1006 3.00 1037 3.15 1068 3.29 1097 3.44 1126 3.59 1155 3.73 1182 3.88
975 2.20 1008 2.32 1040 2.44 1070 2.56
999 2.41 1031 2.54 1062 2.67 1092 2.79
958 2.38
991 2.51 1023 2.65 1054 2.78 1084 2.91 1114 3.04
984 2.62 1016 2.76 1047 2.89 1078 3.03 1107 3.17 1136 3.30
938 2.83 971 2.98 1003 3.13 1034 3.28 1064 3.44 1094 3.59 1123 3.74 1151 3.89 1179 4.04 1206 4.19
50XCA14 (12 tons) (cont)
ESP (in. wg)
1.40 1.50
Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp
CFM
1.00
1.10
1.20
1.30
1.60
1.70
1.80
1.90
3500
3700
971 1.41 1005 1.50 1037 1.59
987 1.56 1021 1.65 1053 1.75 1084 1.84 1115 1.94
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
3900 1005 1.71 1037 1.81 1069 1.91 1100 2.01 1130 2.11 1159 2.21 1187 2.31
4100 1023 1.88 1055 1.98 1086 2.09 1116 2.19 1145 2.30 1174 2.40 1202 2.51 1230 2.62
4300 1041 2.06 1073 2.17 1103 2.28 1133 2.39 1162 2.50 1190 2.61 1218 2.72 1245 2.83 1272 2.94 1298 3.05
4500 1060 2.26 1091 2.37 1121 2.48 1150 2.60 1179 2.71 1207 2.82 1234 2.94 1261 3.05 1287 3.17 1313 3.29
4700 1080 2.46 1110 2.58 1140 2.70 1168 2.82 1196 2.94 1224 3.06 1251 3.17 1277 3.29 1303 3.41 1328 3.53
4900 1101 2.68 1130 2.81 1159 2.93 1187 3.05 1215 3.18 1241 3.30 1268 3.42 1294 3.55 1319 3.67 1344 3.80
5100 1121 2.92 1150 3.05 1179 3.18 1206 3.30 1233 3.43 1260 3.56 1286 3.69 1311 3.82 1336 3.95 1361 4.08
5300 1143 3.17 1171 3.30 1199 3.44 1226 3.57 1253 3.70 1278 3.84 1304 3.97 1329 4.10 1354 4.24 1378 4.37
5500 1165 3.44 1192 3.58 1219 3.71 1246 3.85 1272 3.99 1298 4.13 1323 4.26 1348 4.40 1372 4.54 1396 4.68
5700 1187 3.72 1214 3.87 1241 4.01 1267 4.15 1292 4.29 1318 4.44 1342 4.58 1367 4.72 1390 4.86
—
—
—
—
—
—
5900 1209 4.03 1236 4.17 1262 4.32 1288 4.47 1313 4.61 1338 4.76 1362 4.91
—
—
—
—
—
—
—
—
6100 1232 4.34 1258 4.50 1284 4.65 1309 4.80 1334 4.95
—
—
—
—
LEGEND
Bhp — Brake Horsepower
ESP — External Static Pressure
NOTES:
3. Interpolation is permitted; extrapolation is not.
4. Fan performance is based on filter, unit casing, and wet coil
losses.
1. Units are available with several motor hp options. Refer to the
physical data table.
2. Static pressure losses must be applied to external static pressure
before entering the fan performance table.
23
Performance data (cont)
EVAPORATOR FAN PERFORMANCE (cont)
50XCA16 (15 Tons)
ESP (in. wg)
0.40 0.50
Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp
CFM
0.00
0.10
0.20
0.30
0.60
0.70
0.80
0.90
4500
4750
5000
5250
5500
5750
6000
6250
6500
6750
7000
7250
7500
594 0.50 594 0.50 603 0.51 656 0.59 706 0.67 753 0.75 798 0.82
588 0.53 588 0.53 624 0.58 676 0.67 724 0.75 770 0.83 813 0.91
582 0.56 592 0.58 646 0.66 696 0.75 743 0.83 787 0.92 830 1.01
576 0.59 616 0.66 668 0.75 716 0.84 762 0.93 805 1.02 847 1.11
587 0.65 641 0.75 690 0.84 737 0.94 782 1.03 824 1.13 864 1.22
614 0.75 665 0.85 713 0.94 759 1.04 802 1.14 843 1.24 882 1.34
641 0.85 690 0.95 736 1.05 780 1.16 822 1.26 862 1.36 901 1.47
667 0.96 715 1.07 760 1.17 802 1.28 843 1.39 882 1.49 920 1.60
694 1.08 740 1.19 783 1.30 824 1.41 864 1.52 902 1.64 939 1.75
721 1.21 765 1.32 807 1.44 847 1.56 885 1.67 923 1.79 958 1.90
840 0.90
855 1.00
870 1.10
886 1.20
903 1.32
920 1.44
938 1.57
956 1.71
880 0.98
894 1.08
909 1.18
924 1.29
940 1.41
957 1.54
—
—
933 1.16
947 1.27
961 1.39
976 1.51
992 1.64
974 1.67 1008 1.78
991 1.82 1025 1.93
974 1.86 1009 1.97 1042 2.08
993 2.02 1027 2.13 1059 2.25
747 1.35 790 1.47 831 1.59 870 1.71 907 1.83 943 1.95 978 2.07 1012 2.19 1045 2.31 1077 2.43
774 1.50 815 1.62 855 1.75 893 1.87 929 1.99 965 2.12 999 2.24 1032 2.37 1064 2.49 1096 2.62
801 1.66 841 1.79 879 1.92 916 2.04 951 2.17 986 2.30 1019 2.43 1052 2.56 1084 2.69 1114 2.82
50XCA16 (15 Tons) (cont)
ESP (in. wg)
1.40 1.50
Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp
CFM
1.00
1.10
1.20
1.30
1.60
1.70
1.80
1.90
4500
4750
5000
5250
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
983 1.36
997 1.48 1031 1.57 1064 1.67
5500 1011 1.61 1045 1.70 1078 1.80 1109 1.90
5750 1026 1.74 1059 1.84 1092 1.94 1123 2.05 1154 2.15
6000 1042 1.88 1074 1.99 1106 2.10 1137 2.20 1167 2.31 1197 2.42 1226 2.53
6250 1058 2.04 1090 2.15 1121 2.26 1152 2.37 1181 2.48 1210 2.59 1239 2.70 1267 2.81
6500 1074 2.20 1106 2.31 1136 2.43 1166 2.54 1196 2.65 1225 2.77 1253 2.89 1280 3.00 1307 3.12
6750 1091 2.37 1122 2.49 1152 2.60 1182 2.72 1211 2.84 1239 2.96 1267 3.08 1294 3.20 1321 3.32 1347 3.44
7000 1109 2.55 1139 2.67 1169 2.79 1198 2.92 1226 3.04 1254 3.16 1281 3.29 1308 3.41 1335 3.54 1360 3.66
7250 1126 2.74 1156 2.87 1186 2.99 1214 3.12 1242 3.25 1270 3.37 1297 3.50 1323 3.63 1349 3.76 1374 3.89
7500 1145 2.94 1174 3.07 1203 3.20 1231 3.33 1258 3.47 1286 3.60 1312 3.73 1338 3.86 1364 3.99 1389 4.13
LEGEND
Bhp — Brake Horsepower
ESP — External Static Pressure
NOTES:
3. Interpolation is permitted; extrapolation is not.
4. Fan performance is based on filter, unit casing, and wet coil
losses.
1. Units are available with several motor hp options. Refer to the
physical data table.
2. Static pressure losses must be applied to external static pressure
before entering the fan performance table.
24
EVAPORATOR FAN PERFORMANCE (cont)
50XCA24 (20 Tons)
CFM
ESP (in. wg)
0.00
0.10
0.20
0.30
0.40
0.50
0.60
0.70
0.80
0.90
Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp
6,000 594 1.01 594 1.01 645 1.17 693 1.34 737 1.52
6,300 588 1.07 612 1.14 667 1.32 714 1.50 757 1.68
6,600 588 1.14 636 1.29 689 1.48 735 1.67 777 1.86
6,900 615 1.30 660 1.45 711 1.65 757 1.85 798 2.05
7,200 642 1.48 684 1.63 734 1.84 779 2.05 819 2.25
7,500 668 1.68 708 1.83 756 2.04 801 2.26 840 2.47
7,800 695 1.88 733 2.04 779 2.26 823 2.49 862 2.71
8,000 713 2.03 750 2.19 795 2.41 838 2.65 876 2.88
8,300 740 2.27 774 2.43 818 2.66 860 2.90 898 3.14
8,600 766 2.53 800 2.69 841 2.92 882 3.17 920 3.42
8,900 793 2.80 825 2.97 865 3.20 905 3.46 942 3.72
9,200 820 3.09 850 3.27 888 3.50 928 3.77 964 4.04
781 1.70
799 1.87
817 2.05
837 2.25
857 2.46
877 2.69
898 2.93
912 3.10
934 3.38
955 3.67
825 1.90
840 2.07 883 2.28
870 2.12
917 2.36
926 2.52
965 2.62
971 2.77
979 2.95
990 3.15
857 2.25
875 2.45
894 2.67
913 2.91
933 3.16
946 3.33
967 3.61
897 2.47 938 2.70
913 2.67
930 2.89
948 3.13
967 3.39 1000 3.63 1034 3.87
979 3.57 1012 3.81 1045 4.06
999 3.85 1031 4.10 1062 4.35
951 2.90
966 3.13 1003 3.37
983 3.37 1018 3.61
988 3.91 1019 4.16 1050 4.41 1081 4.67
977 3.97 1009 4.23 1040 4.48 1070 4.74 1100 5.00
998 4.30 1030 4.56 1061 4.82 1090 5.09 1119 5.36
9,500 846 3.40 876 3.58 912 3.82 950 4.09 987 4.37 1020 4.64 1052 4.92 1082 5.19 1111 5.46 1139 5.73
9,800 873 3.74 901 3.92 936 4.16 973 4.44 1009 4.72 1042 5.01 1074 5.29 1103 5.57 1131 5.85 1159 6.13
10,000 891 3.97 918 4.16 952 4.40 989 4.68 1024 4.97 1057 5.26 1088 5.55 1117 5.83 1145 6.12 1173 6.40
50XCA24 (20 Tons) (cont)
ESP (in. wg)
CFM
1.00
1.10
1.20
1.30
1.40
1.50
1.60
1.70
1.80
1.90
Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp
6,000 1014 2.90 1063 3.20 1112 3.53 1161 3.87 1208 4.23
6,300 1016 3.05 1063 3.35 1110 3.66 1157 4.00 1204 4.36 1249 4.73
6,600 1022 3.22 1066 3.51 1110 3.83 1155 4.16 1200 4.50 1245 4.87 1289 5.25 1332 5.65
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
6,900 1030 3.42 1071 3.70 1113 4.01 1156 4.33 1199 4.67 1242 5.03 1285 5.41 1327 5.80 1369 6.21 1409 6.63
7,200 1041 3.64 1080 3.92 1119 4.22 1159 4.53 1200 4.87 1241 5.22 1282 5.59 1323 5.98 1364 6.38 1404 6.80
7,500 1053 3.88 1090 4.15 1127 4.45 1165 4.76 1203 5.09 1242 5.43 1282 5.80 1321 6.18 1361 6.58 1400 6.99
7,800 1067 4.14 1102 4.41 1137 4.70 1173 5.01 1209 5.33 1246 5.67 1284 6.03 1321 6.40 1360 6.80 1397 7.20
8,000 1078 4.32 1111 4.60 1145 4.88 1179 5.19 1214 5.51 1250 5.85 1286 6.20 1323 6.57 1360 6.96 1397 7.36
8,300 1094 4.62 1126 4.89 1158 5.18 1191 5.48 1224 5.80 1258 6.13 1292 6.48 1327 6.84 1362 7.22 1397 7.62
8,600 1111 4.93 1141 5.21 1172 5.50 1203 5.80 1235 6.11 1267 6.44 1300 6.78 1333 7.14 1366 7.51 1400 7.90
8,900 1129 5.27 1158 5.55 1188 5.84 1218 6.14 1248 6.45 1278 6.77 1309 7.11 1341 7.47 1372 7.83 1405 8.22
9,200 1147 5.63 1176 5.91 1204 6.20 1233 6.50 1262 6.81 1291 7.14 1320 7.47 1350 7.82 1381 8.19 1411 8.56
9,500 1167 6.01 1194 6.30 1222 6.59 1249 6.89 1277 7.20 1305 7.53 1333 7.86 1362 8.21 1391 8.57 1420 8.94
9,800 1186 6.41 1213 6.70 1240 7.00 1266 7.30 1293 7.62 1320 7.94 1347 8.28 1374 8.62 1402 8.98 1430 9.35
10,000 1200 6.69 1226 6.99 1252 7.29 1278 7.59 1304 7.91 1331 8.23 1357 8.57 1384 8.91 1411 9.27 1438 9.63
LEGEND
Bhp — Brake Horsepower
ESP — External Static Pressure
NOTES:
3. Interpolation is permitted; extrapolation is not.
4. Fan performance is based on filter, unit casing, and wet coil
losses.
1. Units are available with several motor hp options. Refer to the
physical data table.
2. Static pressure losses must be applied to external static pressure
before entering the fan performance table.
25
Electrical data
UNIT ELECTRICAL DATA
VOLTAGE
RANGE
COMPRESSOR
NO. 1
COMPRESSOR
NO. 2
UNIT
V-PH-Hz
50XCA
Min
Max
253
506
632
253
506
632
253
506
632
253
506
632
253
506
632
253
506
632
RLA
20.5
9.6
LRA
155
75
RLA
LRA
—
208/230-3-60
460-3-60
575-3-60
208/230-3-60
460-3-60
575-3-60
208/230-3-60
460-3-60
575-3-60
208/230-3-60
460-3-60
575-3-60
208/230-3-60
460-3-60
575-3-60
208/230-3-60
460-3-60
575-3-60
187
414
518
187
414
518
187
414
518
187
414
518
187
414
518
187
414
518
—
—
—
—
—
06
08
12
14
16
24
—
—
—
—
7.6
54
22.4
10.6
7.7
149
75
54
—
—
16.0
7.8
110
52
16.0
7.8
5.7
20.5
9.6
7.6
23.2
11.2
7.9
30.1
16.7
12.2
110
52
5.7
39
39
20.5
9.6
155
75
155
75
7.6
54
54
23.2
11.2
7.9
164
75
164
75
54
54
30.1
16.7
12.2
225
114
80
225
114
80
LEGEND
FLA
LRA
NEC
RLA
—
—
—
—
Full Load Amps
Locked Rotor Amps
National Electrical Code
Rated Load Amps
NOTES:
1. In compliance with NEC requirements for multimotor and combination load equipment
(NEC Articles 430 and 440), the overcurrent protective device for the unit shall be fuse or
HACR circuit breaker. Canadian units may be fuse or circuit breaker.
2. Wire sizing amps are a sum of 125% of the compressor RLA plus 100% of indoor fan
motor FLA.
3. Motors are protected against primary single phasing condition.
4. Indoor-fan motors are 3-phase motors of same voltage as unit.
26
FAN ELECTRICAL DATA
VOLTAGE
RANGE
MOTOR
CODE
HP
V-PH-Hz
FLA
Min
187
414
518
187
414
518
187
414
518
187
414
518
187
414
518
187
414
518
187
414
518
187
414
518
Max
253
506
632
253
506
632
253
506
632
253
506
632
253
506
632
253
506
632
253
506
632
253
506
632
208/230-3-60
460-3-60
575-3-60
208/230-3-60
460-3-60
575-3-60
208/230-3-60
460-3-60
575-3-60
208/230-3-60
460-3-60
575-3-60
208/230-3-60
460-3-60
575-3-60
208/230-3-60
460-3-60
575-3-60
208/230-3-60
460-3-60
575-3-60
208/230-3-60
460-3-60
575-3-60
1.8/2.2
1.1
—
2.5/2.6
1.3
B
C
D
E
F
0.50
0.75
1.00
1.50
2.00
3.00
5.00
7.50
1
3.4/3.0
1.5
1.1
4.6/4.2
2.1
1.6
6.0/5.6
2.8
2.1
9.2/8.6
4.3
3.4
14.5/13.6
6.8
5.4
21.5/19.4
9.7
G
H
J
7.5
LEGEND
Full Load Amps
FLA
—
27
Typical wiring schematic
LINE VOLTAGE DIAGRAM — 50XCA012-024, 208/230-3-60 UNITS SHOWN
DISC1
TB1
IFC/IFR
IFM
100/BLK
101/BLK
102/BLK
103/BLK
104/YEL
105/BLU
L1
L2
L3
T1
T2
T3
106/BLK
107/YEL
108/BLU
1
2
3
L1
L2
L3
208/230V
3
60 Hz
109/GRN
GND
GND
OFC/OFR
OFM
111/BLK
112/YEL
113/BLU
L1
L2
L3
T1
T2
T3
114BLK
115/YEL
116/BLU
1
2
3
117/GRN
CLO1-Loop
121/BLK
122/YEL
123/BLU
C1
COMP1
118/BLK
119/YEL
120/BLU
L1
T1
T2
T3
1
2
3
L2
124/GRN
L3
125/BLK
CH1
126/BLK
CLO2-Loop
130/BLK
131/YEL
132/BLU
C2
COMP2
127/BLK
128/YEL
129/BLU
L1
L2
L3
T1
T2
T3
1
2
3
133/GRN
134/BLK
CH2
135/BLK
TB3
TRAN1
240V
150/BLK
500/BRN
208V
TO LOW
VOLTAGE
DIAGRAM
COM
151/YEL
152/BLK
501/RED
560/BRN
TRAN2
240V
208V
TO LOW
VOLTAGE
DIAGRAM
COM
153/YEL
561/RED
LEGEND
C
—
Compressor Contactor
Crankcase Heater
TB
— Terminal Block
NOTES:
CH
CLO
—
—
TRAN — Transformer
1. Fan motors are inherently thermally protected.
2. Three-phase motors are protected under primary
single phase conditions.
Compressor Lockout
Terminal Block Connection
COMP — Compressor
DISC
GND
IFC
—
—
—
—
—
—
—
—
Disconnect
Ground
3. Use conductors suitable for at least 194 F (90 C)
when replacing factory wiring.
Marked Terminal
Unmarked Terminal
Splice
Indoor-Fan Contactor
Indoor-Fan Motor
Indoor-Fan Relay
Outdoor-Fan Contactor
Outdoor-Fan Motor
Outdoor-Fan Relay
4. Use copper conductors only.
IFM
IFR
5. Wiring for field power supply must be rated at 165 F
(75 C) minimum.
OFC
OFM
OFR
Factory Wiring
Field Power Wiring
a50-8504
28
LOW VOLTAGE DIAGRAM — 50XCA012-024, 208/230-3-60 UNITS SHOWN
561
RED
TO LINE
VOLTAGE
{
501
RED
TB2
501
RED
R
TB3
509
BRN
509
BRN
C
IFR
510
510
511
95
96
A
A
B
B
IFC
G
BLK
BLK
BRN
OFR
520
BLU
520
519
BRN
95
96
OFC
Y1
BLU
521
BLU
530
PNK
530
531
1
3
CR1
C1
Y2
PNK
BRN
LPS1
LPS2
HPS1
HPS2
FRZ1
FRZ2
522
523
524
525
526
527
BLU
528
BRN
A
B
2
2
3
BLU
BLU
BLU BLK
BLK
CLO1
LOGIC
529
BRN
529
BRN
1
CR1
532
PNK
533
PNK
534
PNK
535
PNK BLK
536
537
BLK
538
PNK
539
BRN
A
B
C2
2
4
3
CLO2
LOGIC
540
BRN
540
BRN
1
LEGEND
Compressor Contactor
Crankcase Heater
NOTES:
C
—
—
—
Terminal Block Connection
1. Fan motors are inherently thermally protected.
CH
2. Three-phase motors are protected under primary
single phase conditions.
CLO
Compressor Lockout
Marked Terminal
Unmarked Terminal
Splice
COMP — Compressor
3. Use conductors suitable for at least 194 F (90 C)
when replacing factory wiring.
FRZ
HPS
IFC
—
—
—
—
—
—
—
Freeze Protection
High Pressure Switch
Indoor-Fan Contactor
Indoor-Fan Relay
4. Use copper conductors only.
5. Wiring for field power supply must be rated at 165 F
(75 C) minimum.
IFR
Factory Wiring
Field Power Wiring
OFC
OFR
TB
Outdoor-Fan Contactor
Outdoor-Fan Relay
Terminal Block
a50-8505
29
Controls
A second stage on 50XCA12 to 24 units will close if
additional cooling demand is required, and will start the
second-stage compressor. When the thermostat is satisfied,
the second-stage compressor will stop first, and then the
first-stage compressors will stop when cooling demand is
satisfied. The condenser will also stop as soon as both cool-
ing stages are satisfied.
A 5-minute timer, TDR (time-delay relay), will prevent
the compressor(s) from restarting for 5 minutes after any
compressor has stopped.
Operating sequence
All units require the addition of a thermostat accessory
package to complete the control circuit. The sequence of
operation may vary depending on which package is
selected.
Room-mounted thermostat — The unit uses an
electronic thermostat mounted in the conditioned space.
Fan circulation — When the thermostat selector switch is
set to the FAN position, the evaporator-fan motor will
operate to provide air circulation.
All units — The control circuit incorporates a current
sensing lockout relay (Cycle-LOC™ device) that locks off
the compressor(s) when any safety device is activated (low
or high pressure switches, or compressor internal over-
load). If any compressor safety device opens, the compres-
sor will stop. High and low-pressure switches and
compressor motor overload protectors will reset automati-
cally when the condition which caused the device to trip
has dropped below the reset condition. To reset the Cycle-
LOC control device, manually turn the control power OFF,
then back ON.
Cooling — The evaporator will operate continuously or
when the compressor runs, depending on the setting of the
thermostat fan selector switch. When the thermostat closes
(on a call for cooling), the control relay condenser-fan con-
tactor and compressor contactor(s) close. The control relay
will start the indoor fan if it is not already running. The
condenser fan contactor will start the condenser air fan
and the compressor contactors will immediately start the
compressor(s).
30
Typical piping and wiring
LEGEND
NEC
—
National Electrical Code
Condenser Airflow
Evaporator Airflow
a50-8506
Power Wiring
Control Wiring
NOTES:
1. Wiring and piping shown are general points of connection guides only
and are not intended for or to include all details for a specific installation.
2. All wiring must comply with applicable local and national codes.
3. All piping must follow standard piping techniques. Refer to Carrier Sys-
tem Design Manual Part 3 for details.
4. Connect both drains to building waste system and provide a trap of suffi-
cient depth for unit static.
31
Application data
of the unit openings. When bends must be made, they
should be as gradual as space limitations will allow. If the
unit will be operated in cold outdoor weather, or if dampers
are not provided at the louver, then the condenser ducts
should be insulated to prevent condensation.
Design of the louver used for the inlet and discharge of
the condenser airflow is critical to preventing recirculation
of air and high pressure tips. The louver blades must be
heavy enough to prevent unit airflow from drawing them
together. Louver blades should be a minimum of 18 gage,
and widths over 30 in. should have stiffeners. The inlet lou-
ver should not have a flange and the discharge louver
should have a flange which directs the air away from the
inlet. The use of a deflector in conjunction with the con-
denser air discharge is also recommended.
Location
For best results unit must be properly located and installed.
Selected location should not be adjacent to an acoustically
sensitive space, for example a conference room or execu-
tive office. The best location is in mechanical rooms near
areas like elevators, restrooms, stairways, or similar
spaces. The mechanical room should use construction
methods which will help isolate the transmission of acousti-
cal energy.
Since these units typically use large quantities of ducted
condenser air, select a location with the best access to an
outside window or wall to accommodate condenser air lou-
ver. Locate the unit as close to the wall opening as possible
but allow space for return air inlet and access to the evapo-
rator and condenser coil for cleaning. Units on the same
floor should have a minimum of 6 ft between units to pre-
vent recirculation of condenser air. Units floor to floor
should have a minimum of 10 ft between units to prevent
recirculation. Units should not be located with several units
pulling condenser air from a small space between build-
ings, where air may be recirculated. Recirculation of con-
denser air will result in increased head pressure which may
cause units to trip on high pressure.
Piping traps
All 50XCA units have a drain for the condensate from the
evaporator coil. The condensate trap should have a depth
adequate to allow 2 in. of water in the trap with the unit
running. Provide a clean-out on the trap and vent and pitch
the trap for proper drainage.
Controls
There are several methods for applying 50XCA units in
different space applications. See page 33 for recom-
mended equipment room applications and locations of key
components.
All units require a room mounted 24-v thermostat to com-
plete the control system. Carrier has several versions of
thermostats to meet a wide range of job conditions, includ-
ing fully programmable and light-activated versions.
Moving units into existing buildings
The 50XCA06-14 units are designed to pass through most
36-in. door openings. The filter rack may also be removed.
Operational limits
Airflow — 300 to 500 cfm per ton
Air temperature to evaporator:
Unit isolation
Cooling
Maximum 90 F
Minimum 67 F
Condenser
Nominal airflow 350 cfm per ton,
Range: 300 to 500 cfm per ton
Unit compressors are internally isolated and the compres-
sor compartment is lined with acoustical insulation. If addi-
tional vibration isolation is desired, rubber in-shear pads
are recommended under the four corners of the unit.
Spring isolation is not recommended. All duct connections
to the unit should be made with flexible connections to pre-
vent any transmission of vibration to the ductwork.
Condenser air temperature
Maximum 115 F
Evaporator ductwork
Minimum without low ambient 55 F
Minimum with low ambient 0° F
Supply duct should be properly supported and the aspect
ratio as close to square as possible. Duct should be sized for
a maximum of 2000 fpm velocity in areas outside the
equipment room. The duct should be lined with acoustical
insulation for a minimum of 10 ft beyond the equipment
room. A flexible duct connection should be used on the
connection to the unit to prevent transmission of any unit
vibrations into the duct.
Return duct may be attached to the unit, but is not nec-
essary. The return to the unit should prevent line of sight
visibility to the space. Insulated return duct is also recom-
mended for acoustically sensitive spaces. Maximum veloc-
ity should not exceed 1000 fpm over occupied spaces.
Adequate return area is essential for proper operation.
Sound considerations
All units are acoustically insulated. When installed in or
near areas requiring additional sound attenuation:
• Locate unit in equipment room or closet
• Use acoustic lining in ductwork
• Provide square duct elbows with acoustic lining and
turning vanes
• Locate the first supply outlet no less than 10 ft from a
lined elbow.
• If unit is located in the conditioned space, return air
opening from the space should be a lined elbow or
equivalent.
• For critical applications, use packaged sound attenua-
tors or duct silencers. Sound attenuation may be used
on both evaporator air and condenser air.
Condenser ductwork
Condenser supply and discharge air ducts should be as
short and straight as possible. Cross-sectional area of the
inlet and discharge should never be less than the face area
32
filters, and sound traps (if used). It is best to adjust the fan
to the nominal airflow and the rpm which will achieve this
performance. Excess airflow and rpm will make units
noisier.
Setting condenser fan speed
The 50XCA condenser has a centrifugal blower and a vari-
able pitch drive which allow adjusting the condenser
airflow to match the static from the louvers, ductwork,
TYPICAL UNIT LOCATION
*Provide access to clean condenser coil.
a50-8507
NOTE: Refer to Installation Instructions for detailed louver information.
33
Guide specifications
2. Fan shall be belt drive with an adjustable pitch
motor pulley and fixed pitch fan pulley, with
permanently lubricated ball-bearing type bear-
ings. Units larger than 12 tons use pillow block
bearings.
3. Motor shall be 3-phase high-efficiency NEMA
frame TEFC (totally enclosed fan cooled) of the
same voltage as the compressor(s). Motor shall
have permanently lubricated ball bearings.
Indoor Self-Contained Air-Cooled Unit
Constant Volume Application
HVAC Guide Specifications
Size Range: 5 to 20 Tons
Carrier Model Number: 50XCA
Part 1 — General
1.01 SYSTEM DESCRIPTION
Indoor packaged vertical air-cooled cooling unit
using hermetic scroll compressors and built-in con-
denser fan for cooling duty. Unit shall discharge sup-
ply air vertically or horizontally and condenser air
horizontally as shown on contract drawings.
D. Compressor:
Hermetic scroll compressors shall be internally pro-
tected with high pressure relief. Compressors shall
be factory rubber shock mounted with internal
spring vibration isolators.
1.02 QUALITY ASSURANCE
E. Coils:
A. Units shall be rated in accordance with AHRI Stan-
dard 340/360, latest edition, as appropriate.
B. Unit shall be designed to conform to ANSI/
ASHRAE 15, latest revision safety code, and UL
Standard 1995, and shall be UL listed under both
American and Canadian Standards.
C. Unit shall be built in an ISO 9001:2000 certified
manufacturing facility and shall be fully run-tested.
D. Insulation, adhesive, and liner system shall meet
NFPA 90A requirements for flame spread and
smoke generation.
1. Evaporator and condenser coil shall have alumi-
num plate fins mechanically bonded to seamless
copper tubes with all joints brazed. Tube sheet
openings shall be swaged to prevent tube wear.
Coils shall be face split design.
2. Direct expansion coil shall be designed and
tested in accordance with ANSI/ASHRAE 15,
latest revision safety code.
3. Coil and drain pan shall be accessible through
service access panels for cleaning.
F. Filter:
1.03 DELIVERY, STORAGE, AND HANDLING
Filter frame shall be installed upstream of the cool-
ing coil, designed to take a 1-in. or 2-in. thick clean-
able or disposable type commercially available filter.
Filters shall be accessible from either side of the unit
and filter rack shall be usable with ducted or free
return. Disposable filters will be supplied with the
unit.
Units shall be stored and handled according to man-
ufacturer’s recommendations.
Part 2 — Products
2.01 EQUIPMENT
A. General:
Factory-assembled, single-piece, air-cooled cooling
unit. Unit shall consist of scroll refrigerant compres-
sor(s), indoor fan section with belt drive centrifugal
fans and motor, evaporator coil section with direct
expansion coil and drain pan, air-cooled condenser
fan section with belt drive centrifugal fans and
motor, factory wiring, piping and controls, and a
system charge of refrigerant (R-410A). Unit may be
used with or without return ductwork.
G. Condenser:
1. Fans shall be double inlet, centrifugal wheel
with forward curved blades designed for contin-
uous operation. Fan wheel and scroll shall be
constructed of steel with corrosion resistant fin-
ish, and statically and dynamically balanced.
2. Fan shall be belt drive with an adjustable pitch
motor pulley and fixed pitch fan pulley, with
permanently lubricated, ball-bearing type bear-
ings. Units larger than 12 tons use pillow block
bearings.
B. Unit Cabinet:
1. Cabinet shall be constructed of minimum 18
gage zinc surface alloyed steel with a baked
enamel finish. Unit shall be capable of with-
standing ASTM B117 500-hour salt spray test.
2. Cabinet shall be fully insulated.
3. Unit drain pan shall have positive double slope
to the drain to prevent standing water in pan.
3. Motor shall be 3-phase high-efficiency NEMA
frame TEFC (totally enclosed fan cooled) of the
same voltage as the compressor(s). Motor shall
have permanently lubricated ball bearings.
H. Operating Characteristics:
Unit shall be capable of providing a constant volume
of conditioned air at a specified static pressure
within the unit’s normal operating range. Unit shall
have dual-stage cooling capacity control on all units
sizes 12 to 24. Each compressor shall be on an
independent refrigerant circuit. Unit shall be capable
of starting and operating at up to 115 F outdoor
4. Panels for servicing shall be easily removable.
C. Evaporator Fan Section:
1. Fans shall be double inlet, centrifugal wheel
with forward curved blades designed for contin-
uous operation. Fan wheel and scroll shall be
constructed of steel with corrosion resistant fin-
ish, and statically and dynamically balanced.
34
ambient. Units shall be able to operate down to 0° F
when equipped with low ambient option.
I. Controls and Safeties:
c. Current lockout.
d. Inherent automatic fan motor overload.
J. Electrical Requirements:
1. Units shall be furnished with a control terminal
block for connection of low voltage controls
and thermostats.
All electrical power wiring shall enter the unit cabi-
net at a single location. Control circuit is 24-v, suit-
able for a field-supplied 24-v thermostat.
2. Unit shall require a room-mounted thermostat
mounted in the conditioned space. Thermostat
shall be digital type. Thermostat shall control
fan operation and be capable of turning unit on
and off.
3. Units shall have the following factory-
installed safeties:
K. Refrigerant Components:
Refrigerant circuit components include thermal
expansion valves, distributor with nozzle, filter dri-
ers, and charging service valves on each circuit.
Suction line shall have a refrigerant loop to prevent
refrigerant drain back to the compressor. Suction
piping shall be insulated with closed cell piping
insulation.
a. High and low-pressure switches.
b. Motor and compressor overtemperature.
35
Carrier Corporation • Syracuse, New York 13221
310
2-10
Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obligations.
Section 5
Pg 36
Catalog No. 04-52500052-01
Printed in U.S.A.
Form 50XCA-1PD
Replaces: New
Tab 5a
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