SWUD 20 Waterside Economiser Capacity
TABLE 30-1 -Gross Cooling Capacity
| 2
Row Economizer |
8000
CFM |
| Entering
Water Temperature F |
| |
|
|
45 |
55 |
65 |
75 |
| Ent DB |
Ent WB |
GPM |
Tot MBH |
Sen MBH |
LWT |
Tot MBH |
Sen MBH |
LWT |
Tot MBH |
Sen MBH |
LWT |
Tot MBH |
Sen MBH |
LWT |
| |
|
41 |
125 |
106 |
51 |
70 |
70 |
58 |
24 |
24 |
66 |
|
|
|
| |
62 |
50 |
134 |
110 |
50 |
74 |
74 |
58 |
25 |
25 |
66 |
|
|
|
| |
|
60 |
142 |
113 |
50 |
77 |
77 |
58 |
26 |
26 |
66 |
|
|
|
| 70 |
|
70 |
148 |
116 |
49 |
78 |
78 |
57 |
27 |
27 |
66 |
|
|
|
| |
|
41 |
163 |
78 |
53 |
92 |
53 |
59 |
24 |
24 |
66 |
|
|
|
| |
67 |
50 |
178 |
83 |
52 |
100 |
55 |
59 |
25 |
25 |
66 |
|
|
|
| |
|
60 |
190 |
88 |
51 |
106 |
58 |
59 |
26 |
26 |
66 |
|
|
|
| |
|
70 |
200 |
91 |
51 |
113 |
60 |
58 |
27 |
27 |
66 |
|
|
|
| |
|
41 |
139 |
139 |
52 |
94 |
94 |
60 |
48 |
48 |
67 |
|
|
|
| |
62 |
50 |
147 |
147 |
51 |
98 |
98 |
59 |
50 |
50 |
67 |
|
|
|
| |
|
60 |
153 |
153 |
50 |
102 |
102 |
58 |
52 |
52 |
67 |
|
|
|
| |
|
70 |
159 |
158 |
50 |
105 |
105 |
58 |
53 |
53 |
67 |
|
|
|
| |
|
41 |
163 |
116 |
53 |
98 |
93 |
60 |
48 |
48 |
67 |
|
|
|
| 75 |
67 |
50 |
177 |
121 |
52 |
104 |
95 |
59 |
50 |
50 |
67 |
|
|
|
| |
|
60 |
189 |
125 |
51 |
111 |
97 |
59 |
52 |
52 |
67 |
|
|
|
| |
|
70 |
199 |
129 |
51 |
115 |
98 |
58 |
53 |
53 |
67 |
|
|
|
| |
|
41 |
207 |
86 |
55 |
135 |
63 |
62 |
58 |
39 |
68 |
|
|
|
| |
72 |
50 |
226 |
92 |
54 |
147 |
67 |
61 |
62 |
41 |
67 |
|
|
|
| |
|
60 |
242 |
98 |
53 |
157 |
70 |
60 |
67 |
42 |
67 |
|
|
|
| |
|
70 |
254 |
102 |
52 |
166 |
72 |
60 |
70 |
43 |
67 |
|
|
|
| |
|
41 |
162 |
162 |
53 |
118 |
118 |
61 |
72 |
72 |
68 |
24 |
24 |
76 |
| |
62 |
50 |
170 |
170 |
52 |
123 |
123 |
60 |
75 |
75 |
68 |
25 |
25 |
76 |
| |
|
60 |
177 |
177 |
51 |
127 |
127 |
59 |
77 |
77 |
68 |
26 |
26 |
76 |
| |
|
70 |
181 |
181 |
50 |
131 |
131 |
59 |
79 |
79 |
67 |
27 |
27 |
76 |
| |
|
41 |
171 |
156 |
53 |
118 |
118 |
61 |
72 |
72 |
68 |
24 |
24 |
76 |
| 80 |
67 |
50 |
183 |
161 |
52 |
123 |
123 |
60 |
75 |
75 |
68 |
25 |
25 |
76 |
| |
|
60 |
193 |
165 |
51 |
128 |
128 |
59 |
77 |
77 |
68 |
26 |
26 |
76 |
| |
|
70 |
201 |
16B |
51 |
131 |
131 |
59 |
79 |
79 |
67 |
27 |
27 |
76 |
| |
|
41 |
206 |
124 |
55 |
136 |
101 |
62 |
72 |
72 |
69 |
24 |
24 |
76 |
| |
72 |
50 |
225 |
130 |
54 |
147 |
105 |
61 |
76 |
75 |
68 |
25 |
25 |
76 |
| |
|
60 |
241 |
136 |
53 |
157 |
108 |
60 |
78 |
78 |
68 |
26 |
26 |
76 |
| |
|
70 |
254 |
140 |
52 |
165 |
110 |
60 |
80 |
80 |
67 |
27 |
27 |
76 |
| |
|
41 |
185 |
185 |
54 |
141 |
141 |
62 |
95 |
95 |
70 |
49 |
49 |
77 |
| |
62 |
50 |
195 |
195 |
53 |
148 |
148 |
61 |
100 |
100 |
69 |
50 |
50 |
77 |
| |
|
60 |
202 |
202 |
52 |
153 |
153 |
60 |
103 |
103 |
68 |
52 |
52 |
77 |
| |
|
70 |
207 |
207 |
51 |
157 |
157 |
59 |
105 |
105 |
68 |
53 |
53 |
77 |
| |
|
41 |
187 |
197 |
54 |
142 |
142 |
62 |
96 |
96 |
70 |
49 |
49 |
77 |
| 85 |
67 |
50 |
197 |
197 |
53 |
148 |
148 |
61 |
100 |
100 |
69 |
51 |
51 |
77 |
| |
|
60 |
205 |
205 |
52 |
153 |
153 |
60 |
103 |
103 |
68 |
52 |
52 |
77 |
| |
|
70 |
213 |
210 |
51 |
157 |
157 |
59 |
106 |
106 |
68 |
53 |
53 |
77 |
| |
|
41 |
210 |
163 |
55 |
147 |
143 |
62 |
96 |
96 |
70 |
49 |
49 |
77 |
| |
72 |
50 |
227 |
169 |
54 |
156 |
145 |
61 |
100 |
100 |
69 |
51 |
51 |
77 |
| |
|
60 |
242 |
174 |
53 |
163 |
148 |
60 |
103 |
103 |
68 |
52 |
52 |
77 |
| |
|
70 |
253 |
178 |
52 |
171 |
150 |
60 |
106 |
106 |
68 |
53 |
53 |
77 |

NOTE: Each curve provides total water pressure drop tnrough
the entire unit including all accessories and internal valves and piping. Do not add
curves together.
TABLE 30-2-Gross Cooling Capacity
| 4 Row Economizer |
8000 CFM |
| Entering
Water Temperature F |
| |
|
|
45 |
55 |
65 |
75 |
| Ent DB |
Ent WB |
GPM |
Tot MBH |
Sen MBH |
LWT |
Tot MBH |
Sen MBH |
LWT |
Tot MBH |
Sen MBH |
LWT |
Tot MBH |
Sen MBH |
LWT |
| |
|
41 |
167 |
128 |
53 |
88 |
88 |
59 |
30 |
30 |
66 |
|
|
|
| |
62 |
50 |
178 |
132 |
52 |
92 |
91 |
59 |
31 |
31 |
66 |
|
|
|
| |
|
60 |
188 |
136 |
51 |
94 |
94 |
58 |
31 |
31 |
66 |
|
|
|
| 70 |
|
70 |
197 |
140 |
51 |
96 |
96 |
58 |
32 |
32 |
66 |
|
|
|
| |
|
41 |
220 |
100 |
56 |
124 |
65 |
61 |
30 |
30 |
66 |
|
|
|
| |
67 |
50 |
239 |
107 |
55 |
134 |
69 |
60 |
31 |
31 |
66 |
|
|
|
| |
|
60 |
254 |
113 |
53 |
143 |
72 |
60 |
32 |
32 |
66 |
|
|
|
| |
|
70 |
266 |
118 |
53 |
150 |
74 |
59 |
32 |
32 |
66 |
|
|
|
| |
|
41 |
180 |
173 |
54 |
117 |
117 |
61 |
59 |
59 |
68 |
|
|
|
| |
62 |
50 |
190 |
186 |
53 |
122 |
122 |
60 |
61 |
61 |
67 |
|
|
|
| |
|
60 |
198 |
189 |
52 |
125 |
125 |
59 |
63 |
63 |
67 |
|
|
|
| |
|
70 |
204 |
191 |
51 |
127 |
127 |
59 |
64 |
64 |
67 |
|
|
|
| |
|
41 |
221 |
141 |
56 |
129 |
108 |
61 |
59 |
59 |
68 |
|
|
|
| 75 |
67 |
50 |
238 |
148 |
55 |
139 |
111 |
61 |
61 |
61 |
67 |
|
|
|
| |
|
60 |
253 |
154 |
53 |
146 |
114 |
60 |
63 |
63 |
67 |
|
|
|
| |
|
70 |
265 |
158 |
53 |
152 |
116 |
59 |
64 |
64 |
67 |
|
|
|
| |
|
41 |
281 |
113 |
59 |
181 |
79 |
64 |
78 |
47 |
69 |
|
|
|
| |
72 |
50 |
304 |
121 |
57 |
199 |
84 |
63 |
84 |
49 |
68 |
|
|
|
| |
|
60 |
324 |
129 |
56 |
211 |
89 |
62 |
90 |
51 |
68 |
|
|
|
| |
|
70 |
340 |
134 |
55 |
222 |
92 |
61 |
94 |
52 |
68 |
|
|
|
| |
|
41 |
203 |
203 |
55 |
147 |
147 |
62 |
89 |
89 |
69 |
30 |
30 |
76 |
| |
62 |
50 |
211 |
211 |
53 |
152 |
152 |
61 |
92 |
92 |
69 |
31 |
31 |
76 |
| |
|
60 |
218 |
218 |
52 |
156 |
156 |
60 |
94 |
94 |
68 |
32 |
32 |
76 |
| |
|
70 |
222 |
222 |
51 |
159 |
159 |
60 |
96 |
96 |
68 |
32 |
32 |
76 |
| |
|
41 |
227 |
184 |
56 |
148 |
148 |
62 |
89 |
89 |
69 |
30 |
30 |
76 |
| 80 |
67 |
50 |
242 |
190 |
55 |
155 |
155 |
61 |
92 |
92 |
69 |
31 |
31 |
76 |
| |
|
60 |
255 |
195 |
53 |
160 |
160 |
60 |
95 |
95 |
68 |
32 |
32 |
76 |
| |
|
70 |
266 |
199 |
53 |
165 |
161 |
60 |
96 |
96 |
68 |
32 |
32 |
76 |
| |
|
41 |
280 |
153 |
59 |
184 |
121 |
64 |
91 |
91 |
69 |
30 |
30 |
76 |
| |
72 |
50 |
304 |
162 |
57 |
198 |
125 |
63 |
96 |
93 |
69 |
31 |
31 |
76 |
| |
|
60 |
323 |
169 |
56 |
211 |
130 |
62 |
99 |
95 |
68 |
32 |
32 |
76 |
| |
|
70 |
339 |
175 |
55 |
220 |
133 |
61 |
103 |
95 |
68 |
32 |
32 |
76 |
| |
|
41 |
232 |
232 |
56 |
176 |
176 |
64 |
118 |
118 |
71 |
60 |
60 |
78 |
| |
62 |
50 |
241 |
241 |
55 |
182 |
182 |
62 |
122 |
122 |
70 |
62 |
62 |
77 |
| |
|
60 |
248 |
248 |
53 |
187 |
187 |
61 |
126 |
126 |
69 |
63 |
63 |
77 |
| |
|
70 |
253 |
253 |
52 |
191 |
191 |
60 |
128 |
128 |
69 |
64 |
64 |
77 |
| |
|
41 |
242 |
242 |
57 |
176 |
176 |
64 |
119 |
119 |
71 |
60 |
60 |
78 |
| 85 |
67 |
50 |
255 |
247 |
55 |
183 |
183 |
62 |
123 |
123 |
70 |
62 |
62 |
77 |
| |
|
60 |
266 |
251 |
54 |
188 |
188 |
61 |
126 |
126 |
69 |
63 |
63 |
77 |
| |
|
70 |
275 |
255 |
53 |
191 |
191 |
60 |
128 |
128 |
69 |
64 |
64 |
77 |
| |
|
41 |
283 |
195 |
59 |
193 |
165 |
64 |
119 |
119 |
71 |
60 |
60 |
78 |
| |
72 |
50 |
305 |
203 |
57 |
206 |
169 |
63 |
123 |
123 |
70 |
62 |
62 |
77 |
| |
|
60 |
323 |
210 |
56 |
217 |
172 |
62 |
126 |
126 |
69 |
63 |
63 |
77 |
| |
|
70 |
338 |
215 |
55 |
225 |
175 |
61 |
129 |
129 |
69 |
65 |
65 |
77 |

NOTES:
1 .Dotted line on construction filters indicates CFM where face
velocity exceeds manufacturer's recommended maximum of 300 FPM. After startup,
construction filters must be replaced with medium velocity or high velocity filters.
2. Air pressure drop through electric heat is .05 inches WC.
3. Refer to Page 27 for pressure drop through flexible horizontal
discharge.