Cbx40Uhv­024 Blower Performance - Lennox CBX40UHV Series Installation And Service Procedure

BLOWER DATA
CBX40UHV­024 BLOWER PERFORMANCE
0 through 0.80 in. W.g. External Static Pressure Range
"AJUST"
Jumper Setting
+
NORM
-
NOTES:
S
The effect of static pressure, filter and electric heater resistance is included in the air volumes listed.
S
First stage cooling air volume is 70% of COOL speed settings. Continuous fan speed is approximately 28%, 38%, 70% and 100% (Jumper
selectable) of the same second­stage COOL speed selected, minimum 250 cfm.
S
Lennox Harmony III™ Zone Control applications - minimum blower speed if 250 cfm.
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
"HEAT" Speed
1 2
cfm cfm
715 855 1000
670 770
580 700
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
Jumper Speed Positions
3 4
cfm cfm
1130
900 1035
800 930
0.3 0.4
113 143
141 170
179 217
218 248
73 89
101 130
146 177
200 219
0.3 0.4
103 128
123 149
151 178
193 223
68 80
94 111
130 158
166 198
0.3 0.4
94 113
110 138
125 155
165 192
61 71
86 102
116 138
138 159
Page 3
"COOL" Speed
1 2
cfm cfm
465 690
425 620
385 560
0.5 0.6
163 191
200 234
248 275
285 313
98 114
151 180
210 243
258 280
0.5 0.6
156 182
175 206
214 239
245 286
91 111
142 152
190 226
225 258
0.5 0.6
130 154
163 195
186 213
220 250
83 98
118 138
171 191
195 227
3 4
cfm cfm
900 1050
825 950
735 850
0.7 0.8
214 232
260 282
306 348
349 393
130 143
211 216
266 298
332 363
0.7 0.8
196 207
233 254
267 300
325 359
128 135
176 203
247 270
289 319
0.7 0.8
176 192
207 234
246 268
278 314
110 123
162 172
221 247
253 286