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BLOWER DATA
CBX40UHV-024 BLOWER PERFORMANCE
ADJUST JUMPER SETTING
+
NORM
–
NOTES
The effect of static pressure, filter and electric heater resistance is included in the air volumes listed.
First stage cooling air volume is 70% of COOL speed setting. .
Continuous blower speeds are adjustable to 28%, 38%, 70% and 100% of COOL speed setting (default setting is 38%).
Lennox Harmony IIIt Zone Control applications
CBX40UHV-024 BLOWER MOTOR WATTS AT +" (Plus) AHC SETTING (Adjust Jumper at +" Setting)
AHC JUMPER SPEED
POSITIONS
TAP 1
TAP 2
HEAT SPEED
TAP 3
TAP 4
TAP 1
TAP 2
COOL SPEED
TAP 3
TAP 4
CBX40UHV-024 BLOWER MOTOR WATTS AT NORM" AHC SETTING (Adjust Jumper at NORM Setting)
AHC JUMPER SPEED
POSITIONS
TAP 1
TAP 2
HEAT SPEED
TAP 3
TAP 4
TAP 1
TAP 2
COOL SPEED
TAP 3
TAP 4
CBX40UHV-024 BLOWER MOTOR WATTS AT −" (Minus) AHC SETTING (Adjust Jumper at −" Setting)
AHC JUMPER SPEED
POSITIONS
TAP 1
TAP 2
HEAT SPEED
TAP 3
TAP 4
TAP 1
TAP 2
COOL SPEED
TAP 3
TAP 4
CBX40UHV
0 through 0.80 in. w.g. External Static Pressure Range
HEAT SPEED
1
2
3
CFM
CFM
CFM
715
855
1000
670
770
900
580
700
800
minimum blower speed is 250 cfm.
MOTOR WATTS @ VARIOUS EXTERNAL STATIC PRESSURES − IN. WG.
0
0.1
0.2
53
68
89
73
93
122
105
141
168
132
159
189
25
35
56
45
64
79
75
103
127
114
142
175
MOTOR WATTS @ VARIOUS EXTERNAL STATIC PRESSURES − IN. WG.
0
0.1
0.2
48
64
79
61
80
98
77
101
128
109
142
171
23
38
52
34
53
76
64
87
113
89
120
145
MOTOR WATTS @ VARIOUS EXTERNAL STATIC PRESSURES − IN. WG.
0
0.1
0.2
38
56
70
53
68
88
62
84
103
89
116
141
22
33
47
30
46
63
54
71
91
66
86
117
Page 3
AHC JUMPER SPEED POSITIONS
4
1
CFM
CFM
1130
465
1035
425
930
385
0.3
0.4
0.5
113
143
163
141
170
200
179
217
248
218
248
285
73
89
98
101
130
151
146
177
210
200
219
258
0.3
0.4
0.5
103
128
156
123
149
175
151
178
214
193
223
245
68
80
91
94
111
142
130
158
190
166
198
225
0.3
0.4
0.5
94
113
130
110
138
163
125
155
186
165
192
220
61
71
83
86
102
118
116
138
171
138
159
195
COOL SPEED
2
3
4
CFM
CFM
CFM
690
900
1050
620
825
950
560
735
850
0.6
0.7
0.8
191
214
232
234
260
282
275
306
348
313
349
393
114
130
143
180
211
216
243
266
298
280
332
363
0.6
0.7
0.8
182
196
207
206
233
254
239
267
300
286
325
359
111
128
135
152
176
203
226
247
270
258
289
319
0.6
0.7
0.8
154
176
192
195
207
234
213
246
268
250
278
314
98
110
123
138
162
172
191
221
247
227
253
286
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