Lennox Harmony II Zone Control System

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25 7535 45 50 55 60 65 70 80 85 90
Pulse Width Modulation (PWM) Multiplier Chart
Figure 11
0.0
0.10
0.20
0.30
0.40
0.50
0.60
0.70
0.80
0.90
1.0
PULSE WIDTH MODULATION (PWM) MULTIPLIER
PERCENT AIR
(% of Total Air of All Zones Calling)
30 40
95 100
0 %
REDUCTION
(Cooling)
20 %
REDUCTION
(Heating)
40 %
REDUCTION
(Heating)
50 %
REDUCTION
(Continuous Air)
Note − For 75 % reduction use minimum
CFM
EXAMPLE 1
EXAMPLE 2 part 1
EXAMPLE 2 part 2