0 Through 0.80 In. W.g. External Static Pressure Range - Lennox CBX40UHV Series Installation And Service Procedure

CBX40UHV­030 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‐030 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‐030 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‐030 BLOWER MOTOR WATTS AT "-" (Minus) AHC SETTING (Adjust Jumper at "-" Setting)
AHC Jumper Speed
Positions
HEAT SPEED TAP 1
TAP 2
TAP 3
TAP 4
COOL SPEED
TAP 1
TAP 2
TAP 3
TAP 4
"HEAT" Speed
1 2
cfm cfm cfm
800 935 1070
725 850 975
655 765 880
Motor Watts @ Various External Static Pressures - in. wg.
0 0.1 0.2
66 87 114
101 124 151
134 171 188
182 211 245
47 63 82
83 107 131
142 170 196
209 258 295
Motor Watts @ Various External Static Pressures - in. wg.
0 0.1 0.2
57 77 94
79 104 123
111 139 164
148 178 199
38 53 68
67 84 105
110 141 164
168 197 226
Motor Watts @ Various External Static Pressures - in. wg.
0 0.1 0.2
48 66 83
63 80 103
86 113 135
109 144 165
32 47 60
54 70 88
87 114 137
130 165 184
Jumper Speed Positions
3 4
cfm cfm
1210 660
1100 600
990 540
0.3 0.4
134 162
175 192
212 243
285 319
101 121
152 178
220 251
345 373
0.3 0.4
115 146
149 168
186 209
231 260
94 113
131 152
188 213
260 302
0.3 0.4
107 127
125 145
155 179
191 212
86 101
107 132
159 183
207 245
Page 4
"COOL" Speed
1 2 3
cfm cfm
880 1100
800 1000
720 900
0.5 0.6
185 214
224 243
273 296
353 375
151 175
202 231
282 315
418 452
0.5 0.6
172 195
196 231
233 261
293 314
127 149
178 207
240 266
338 366
0.5 0.6
149 171
178 200
203 244
240 264
113 134
157 188
206 232
270 300
4
cfm
1320
1200
1080
0.7 0.8
239 268
273 325
329 366
405 444
193 206
265 296
345 367
482 512
0.7 0.8
219 232
264 294
298 334
355 382
169 185
240 257
292 330
400 434
0.7 0.8
199 217
229 246
270 305
296 338
151 168
210 225
267 302
326 363
CBX40UHV