159
PERFORMANCE DATA (cont)
COOLING CAPACITIES (cont)
LEGEND
NOTES:
1. Direct interpolation is permissible. Do not extrapolate.
2. The following formulas may be used:
t
lwb
= Wet-bulb temperature corresponding to enthalpy of air leaving evapo-
rator coil (h
lwb
)
Where: h
ewb
= Enthalpy of air entering evaporator coil
3. The SHC is based on 80 F edb temperature of air entering evaporator coil.
Below 80 F edb, subtract (corr factor x cfm) from SHC.
Above 80 F edb, add (corr factor x cfm) to SHC.
Interpolation is permissible.
Correction Factor = 1.10 x (1 – BF) x (edb – 80).
551A155 (13 TONS) UNITS WITH PERFECT HUMIDITY™ OPTION
Temp (F)
Air Entering
Condenser
(Edb)
Evaporator Air Quantity — Cfm/BF
3600/0.03
4375/0.04
5000/0.05045
5625/0.06
6250/0.07
Evaporator Air — Ewb (F)
62
67
72
62
67
72
62
67
72
62
67
72
62
67
72
75
TC
—
139
153
130
144
153
135
145
155
138
147
159
145
149
156
SHC
—
81
63
111
93
68
118
98
68
125
104
72
135
109
72
kW
—
8.0
8.2
7.9
8.3
8.2
7.9
8.1
8.3
8.0
8.2
8.3
8.3
8.2
8.3
85
TC
—
133
142
125
137
146
129
138
146
132
140
148
135
142
148
SHC
—
75
56
105
84
61
113
93
62
120
98
66
125
100
67
kW
—
8.9
9.1
8.8
9.2
9.2
8.8
9.0
9.0
8.8
9.0
9.2
9.1
9.1
9.3
95
TC
—
126
135
119
129
137
123
132
139
125
133
139
128
135
139
SHC
—
70
52
99
78
56
106
84
59
112
90
60
117
95
61
kW
—
9.9
10.1
9.7
9.9
10.1
9.9
10.0
10.2
9.9
10.1
10.1
9.9
10.1
10.1
105
TC
105
119
127
110
122
130
113
124
130
115
125
131
118
126
132
SHC
80
65
47
92
73
51
97
78
52
104
83
55
108
89
57
kW
10.6
10.9
11.1
10.8
11.0
11.2
10.9
11.0
11.1
10.8
11.0
11.2
10.9
11.1
11.3
115
TC
90
108
119
97
112
121
97
115
122
100
116
123
106
118
123
SHC
66
57
41
79
66
45
80
72
47
88
76
49
95
80
51
kW
11.7
12.1
12.3
11.8
12.2
12.4
11.8
12.3
12.5
12.0
12.4
12.5
12.1
12.3
12.5
117
TC
86
100
111
98
112
121
99
114
121
102
116
123
107
117
123
SHC
64
52
38
63
58
45
67
61
47
72
63
48
77
66
50
kW
12.8
13.2
13.6
12.0
12.3
12.5
12.0
12.3
12.5
11.9
12.4
12.5
12.1
12.4
12.5
120
TC
90
102
114
90
107
117
91
109
118
93
111
119
99
113
119
SHC
67
52
38
71
61
41
76
66
44
81
70
46
87
75
47
kW
12.3
12.6
12.8
12.3
12.7
12.9
12.3
12.8
12.9
12.3
12.8
13.0
12.5
12.9
13.0
125
TC
83
95
109
85
97
112
87
103
113
88
105
114
90
107
114
SHC
61
47
35
66
53
38
72
61
41
76
66
44
78
70
45
kW
12.8
13.1
13.5
12.8
13.1
13.5
12.9
13.3
13.5
12.8
13.4
13.6
12.9
13.4
13.6
551A180 (15 TONS) UNITS WITH PERFECT HUMIDITY OPTION
Temp (F)
Air Entering
Condenser
(Edb)
Evaporator Air Quantity — Cfm/BF
4500/0.02
5250/0.03
6000/0.03905
6750/0.04
7500/0.05
Evaporator Air — Ewb (F)
62
67
72
62
67
72
62
67
72
62
67
72
62
67
72
75
TC
—
185
203
175
191
209
179
195
212
182
198
213
186
200
216
SHC
—
105
82
141
115
88
154
125
96
165
135
104
174
145
109
kW
—
11.3
11.7
11.0
11.4
11.8
11.1
11.5
11.9
11.2
11.6
11.9
11.3
11.7
12.0
85
TC
—
176
193
166
183
199
170
186
202
173
189
204
177
190
205
SHC
—
98
74
134
108
81
145
116
85
156
126
93
162
134
97
kW
—
12.3
12.7
12.1
12.9
13.4
12.1
12.6
13.5
12.2
12.7
13.5
12.7
12.2
12.7
95
TC
—
168
182
156
173
187
160
176
191
163
178
194
167
181
196
SHC
—
91
66
126
100
72
137
108
76
146
116
82
153
125
86
kW
—
13.7
13.5
13.1
13.6
13.9
13.2
13.6
14.1
13.3
13.4
14.3
13.5
13.9
14.6
105
TC
—
156
173
145
160
175
148
162
177
151
166
178
154
167
180
SHC
—
83
59
117
90
62
127
98
66
136
106
70
141
112
74
kW
—
14.5
15.3
14.2
14.8
15.1
14.4
14.5
15.1
14.4
14.9
14.9
14.2
14.6
14.9
115
TC
—
141
156
130
146
160
132
150
162
135
150
164
139
152
166
SHC
—
72
47
104
79
52
112
86
55
119
93
59
127
100
63
kW
—
15.6
15.9
15.2
15.8
16.2
15.3
16.1
16.3
15.4
16.0
16.4
15.8
16.1
16.4
118
TC
—
138
151
126
141
153
129
144
—
134
145
—
135
148
—
SHC
—
68
43
100
74
46
108
83
—
120
88
—
124
96
—
kW
—
16.1
16.5
15.7
16.1
16.5
15.8
16.3
—
16.0
16.3
—
15.9
16.3
—
120
TC
—
134
—
124
—
—
126
—
—
—
—
—
—
—
—
SHC
—
65
—
99
—
—
106
—
—
—
—
—
—
—
—
kW
—
16.2
—
15.9
—
—
16.0
—
—
—
—
—
—
—
—
125
TC
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
SHC
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
kW
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
BF
—
Bypass Factor
Edb —
Entering Dry-Bulb
Ewb —
Entering Wet-Bulb
kW
—
Compressor Motor Power Input
ldb
—
Leaving Dry-Bulb
lwb
—
Leaving Wet-Bulb
SHC —
Sensible Heat Capacity (1000 Btuh) Gross
TC
—
Total Capacity (1000 Btuh) Gross
t
ldb
= t
edb
–
sensible capacity (Btuh)
1.10 x cfm
h
lwb
= h
ewb
–
total capacity (Btuh)
4.5 x cfm
BYPASS
FACTOR
(BF)
ENTERING AIR DRY-BULB TEMP (F)
79
78
77
76
75
under 75
81
82
83
84
85
over 85
Correction Factor
.05
1.04
2.07
3.11
4.14
5.18
Use formula
shown below.
.10
.98
1.96
2.94
3.92
4.90
.20
.87
1.74
2.62
3.49
4.36
.30
.76
1.53
2.29
3.05
3.82
0
T
F
Q
0
04
-0
12
55
1A1
55-
18
0
Содержание 551A
Страница 14: ...14 TYPICAL WIRING SCHEMATIC Single Fan Units Sizes 036 073 ...
Страница 16: ...16 TYPICAL WIRING SCHEMATIC Sizes 155 300 ...
Страница 29: ...29 BASE UNIT DIMENSIONS 558F036 072 0TFQ004 012 558F036 150 ...
Страница 30: ...30 BASE UNIT DIMENSIONS 558F073 0TFQ004 012 558F036 150 ...
Страница 31: ...31 BASE UNIT DIMENSIONS 558F090 102 120 150 0TFQ004 012 558F036 150 ...
Страница 32: ...32 BASE UNIT DIMENSIONS 558F091 121 0TFQ004 012 558F036 150 ...
Страница 74: ...74 BASE UNIT DIMENSIONS 551B036 072 0TFQ004 012 551B036 150 ...
Страница 75: ...75 BASE UNIT DIMENSIONS 551B090 150 0TFQ004 012 551B036 150 ...
Страница 133: ...133 BASE UNIT DIMENSIONS 558F180 210 0TFQ004 012 558F180 300 ...
Страница 134: ...134 BASE UNIT DIMENSIONS 558F240 0TFQ004 012 558F180 300 ...
Страница 135: ...135 BASE UNIT DIMENSIONS 558F300 0TFQ004 012 558F180 300 ...
Страница 153: ...153 BASE UNIT DIMENSIONS 551A155 180 0TFQ004 012 551A155 180 ...