Aerco BMK 1500 User Manual page 149

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APPENDIX E – INDOOR/OUTDOOR RESET RATIO CHARTS
Table E-5. Header Temperature for a Building Reference Temperature = 75°F
Air Temp
0.6
°F
°C
75
75
23.9
78
70
21.1
81
65
18.3
84
60
15.6
87
55
12.8
90
50
10.0
93
45
7.2
96
40
4.4
99
35
1.7
102
30
-1.1
105
25
-3.9
108
20
-6.7
111
15
-9.4
114
10
-12.2
117
5
-15.0
120
0
-17.8
123
-5
-20.6
126
-10
-23.3
129
-15
-26.1
Table E-6. Header Temperature for a Building Reference Temperature = 80°F
Air Temp
0.6
°F
°C
80
80
26.7
83
75
23.9
86
70
21.1
89
65
18.3
92
60
15.6
95
55
12.8
98
50
10.0
101
45
7.2
104
40
4.4
107
35
1.7
110
30
-1.1
113
25
-3.9
116
20
-6.7
119
15
-9.4
122
10
-12.2
125
5
-15.0
128
0
-17.8
131
-5
-20.6
134
-10
-23.3
OMM-0097_0E
GF-142
Benchmark 1500 - 2000 Boilers
0.8
1.0
1.2
75
75
75
79
80
81
83
85
87
87
90
93
91
95
99
95
100
105
99
105
111
103
110
117
107
115
123
111
120
129
115
125
135
119
130
141
123
135
147
127
140
153
131
145
159
135
150
165
139
155
171
143
160
177
147
165
183
0.8
1.0
1.2
80
80
80
84
85
86
88
90
92
92
95
98
96
100
104
100
105
110
104
110
116
108
115
122
112
120
128
116
125
134
120
130
140
124
135
146
128
140
152
132
145
158
136
150
164
140
155
170
144
160
176
148
165
182
152
170
188
AERCO International, Inc. • 100 Oritani Dr. • Blauvelt, NY 10913
Ph.: 800-526-0288
RESET RATIO
1.4
1.6
1.8
75
75
75
82
83
84
89
91
93
96
99
102
103
107
111
110
115
120
117
123
129
124
131
138
131
139
147
138
147
156
145
155
165
152
163
174
159
171
183
166
179
192
173
187
201
180
195
210
187
203
219
194
211
201
219
RESET RATIO
1.4
1.6
1.8
80
80
80
87
88
89
94
96
98
101
104
107
108
112
116
115
120
125
122
128
134
129
136
143
136
144
152
143
152
161
150
160
170
157
168
174
164
176
188
171
184
197
178
192
206
185
200
215
192
208
199
216
206
2.0
2.2
2.4
75
75
75
85
86
87
95
97
99
105
108
111
115
119
123
125
130
135
135
141
17
145
152
159
155
163
171
165
174
183
175
185
195
185
196
207
195
207
219
205
218
215
2.0
2.2
2.4
80
80
80
90
91
92
100
102
104
110
113
116
120
124
128
130
135
140
140
146
152
150
157
164
160
168
176
170
179
188
180
190
200
190
201
212
200
212
210
Page 149 of 182
10/01/2015

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