Cfm Tables - Crown CSHB60-90XE Operation Manual

All installations and services must be performed by qualified service personnel.
F. CFM TABLES
The following tables contain blower speed settings and their respective air flowrates for the ECM blower motor. To
change air flowrates from that of the shipped settings, use the respective SW1 dipswitch on the furnace's integrated
control board (see Figure 2).
Heating Speed Set-ups
BTUH
Fan
Control
SW 1
Switch Heating
Settings CFM
3-OFF
740
2-OFF
1-OFF
3-OFF
812
2-OFF
1-ON
3-OFF
883
2-ON
1-OFF
Factory
3-OFF
SW1 968
2-ON
Setting
1-ON
3-ON
1054
2-OFF
1-OFF
3-ON
1153
2-OFF
1-ON
3-ON
1267
2-ON
1-OFF
3-ON
1424
2-ON
1-ON
Low Fire Med Fire
60,000 72,000
Aprox. Rise Aprox. Rise Aprox. Rise
0 0
(F ) (F ) (F
o o
75 80
o o
68 82
o o
63 76
o o
57 69
o
63
o
58
Recommended Heating Speed Setting
CSHB60-90XE
Cooling Speed Set-ups
High Fire
90,000
0
)
o
84
o
86
Factory
SW1
o
79
Setting
o
72
o
66
o
58
6
Fan
Control
SW 1
Switch
Settings Clg. Tonage Cool
6-OFF
2 799
5-OFF
4-OFF
6-OFF
2.5 1017
5-OFF
4-ON
6-OFF
3 1210
5-ON
4-OFF
6-OFF
3.5 1404
5-ON
4-ON
6-ON
4 1622
5-OFF
4-OFF
Air Flow
Continous
500
508
605
702
799