13
Minimum CFM for Zoning System with
Variable Speed Blower Motors
The following table list minimum indoor CFMs for zoning
system the employ indoor units with variable speed blower
motors.
Table 12. Minimum CFMs
Unit Model Number CFM (minimum)
**G71MPP-36B-070 250
**G71MPP-36C-090 250
**G71MPP-60C-090 450
**G71MPP-60C-110 450
**G71MPP-60D-135 450
**SLP98xx070V36B 1/2HP motor 250
**SLP98xx090V36C 1/2HP motor 250
**SLP98xx090V48C 3/4HP motor 380
**SLP98xx090V60C 1HP motor 450
**SLP98xx110V60C 1HP motor 450
**SLP98UH135V60D 1HP motor 450
SL280xxV 3-ton 250
SL280xxV 4- & 5-ton 450
EL296xxV 2 & 3-ton 250
EL296xxV 4-ton 380
EL296xxV 5-ton 450
CBX32MV-018/024 250
CBX32MV-024/030 Rev 06 250
CBX32MV-036 Rev 06 250
CBX32MV-048, -060, -068 Rev 06 450
**CBX40UHV-024, -030 250
**CBX40UHV-036 380
**CBX40UHV-042, -048, -060 450
* A 3% duty cycle corresponds to the minimum CFM, and a 97% duty
cycle corresponds to the maximum CFM.
** On G71MPP & SLP98 Furnaces and CBX40UHV and CBX32MV
revision -06 Air Handlers, listed values in the table correspond to 0%
duty cycle of the iHarmony® zoning system control signal.