Page 21
Multi-Zone Air Handler Compatibility Chart
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Multi-Zone Air Handler/Condenser Capacity Compatibility Charts
18K 2-Zone Condenser - 2 Combinations
27K 3-Zone Condenser - 11 Combinations
36K 4-Zone Condenser - 27 Combinations
48K 5-Zone Condenser - 28 Combinations
Two Indoor Units
Two Indoor Units
9K + 9K 9K + 12K*
9K + 9K 12K + 12K 9K + 9K + 9K 9K + 12K + 12K*
9K + 12K 12K + 18K* 9K + 9K + 12K* 12K + 12K + 12K*
9K + 18K 18K + 18K* 9K + 9K + 18K*
12K + 24K 9K + 9K + 9K 9K + 12K + 24K*
18K + 18K 9K + 9K + 12K 9K + 18K + 18K*
9K + 18K
9K + 24K
12K + 12K
12K + 18K
18K + 24K*
24K + 24K*
9K + 9K + 9K + 9K
12K + 12K + 12K + 12K*
9K + 9K + 9K + 12K*
9K + 9K + 9K + 18K*
9K + 9K + 12K + 12K*
9K + 9K + 12K + 18K*
9K + 12K + 12K + 12K*
9K + 9K + 18K
9K + 9K + 24K*
9K + 12K + 12K
9K + 12K + 18K*
12K + 12K + 12K
12K + 12K + 18K*
12K + 12K + 24K*
12K + 18K + 18K*
18K + 24K 12K + 12K + 12K
24K + 24K 12K + 12K + 18K
9K + 24K
12K + 24K
18K + 18K
9K + 9K + 9K + 9K
12K + 12K + 12K + 18K*
9K + 9K + 9K + 9K + 9K
9K + 9K + 9K + 9K +12K
9K + 9K + 9K + 12K + 12K*
9K + 9K + 9K + 12K
9K + 9K + 9K + 18K
9K + 9K + 12K + 12K
9K + 9K + 12K + 18K
9K + 12K + 12K + 12K
9K + 12K + 12K + 18K*
12K + 12K + 12K + 12K
9K + 9K + 18K
9K + 9K + 24K
9K + 12K + 12K
9K + 12K + 18K
9K + 12K + 24K
9K + 18K + 18K
12K + 12K + 24K
12K + 18K + 18K
18K + 18K + 18K*
Three Indoor Units
Two Indoor Units
Three Indoor Units Four Indoor Units
Two Indoor Units
Three Indoor Units Four Indoor Units Five Indoor Units
When installing a multi-zone system, ensure the capacities of the air handlers are compatible with the condenser
by using the charts below.
* If all indoor units run simultaneously, their combined BTU output will not exceed the BTU rating of
the outdoor unit.
NOTE: It is critical during selection of the outdoor unit that you select a capacity for the entire
application area and select each indoor unit capacity based on the size of the zone it will cover.
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