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Understand the Allowable Zone Combinations for Multi-Zone SystemsUpdated 2 days ago

This article explains the allowable zone combinations for Quantum Ultra multi-zone mini split systems

The allowable combinations are in kBTU. 

Outdoor Unit 
Model Number
YN020GLSI24M2G
YN030GLSI24M3G
YN040GLSI24M4G
YN050GLSI24M5G
Number of 
Available Zones
Two (2)Three (3)Four (4)Five (5)
Two Zones 
Utilized
9 + 99 + 99 + 99 + 9
12 + 912 + 912 + 912 + 9
12 + 1218 + 918 + 918 + 9
18 + 924 + 924 + 924 + 9

12 + 1212 + 1212 + 12
18 + 1218 + 1218 + 12
24 + 1224 + 1224 + 12
18 + 1818 + 1818 + 18

24 + 1824 + 18
24 + 2424 + 24


Outdoor Unit 
Model Number
YN020GLSI24M2G
YN030GLSI24M3G
YN040GLSI24M4G
YN050GLSI24M5G
Number of 
Available Zones
Two (2)Three (3)Four (4)Five (5)
Three Zones Utilized

9 + 9 + 99 + 9 + 99 + 9 + 9
12 + 9 + 99 + 9 + 1212 + 9 + 9
18 + 9 + 99 + 9 + 1818 + 9 + 9
12 + 12 + 99 + 12 + 1212 + 12 + 9
18 + 12 + 99 + 12 + 1818 + 12 + 9
12 + 12 + 129 + 12 + 2424 + 12 + 9

12 + 12 + 1218 + 18 + 9
12 + 12 + 1824 + 18 + 9
12 + 12 + 2424 + 24 + 9
12 + 18 + 1812 + 12 + 12

18 + 12 + 12
24 + 12 + 12
18 + 18 + 12
24 + 18 + 12
24 + 24 + 12
18 + 18 + 18
24 + 18 + 18


Outdoor Unit 
Model Number
YN020GLSI24M2G
YN030GLSI24M3G
YN040GLSI24M4G
YN050GLSI24M5G
Number of 
Available Zones
Two (2)Three (3)Four (4)Five (5)
Four Zones 
Utilized

9 + 9 + 9 + 99 + 9 + 9 + 9
12 + 9 + 9 + 912 + 9 + 9 + 9
12 + 12 + 9 + 918 + 9 + 9 + 9
12 + 12 + 12 + 912 + 12 + 9 + 9
12 + 12 + 12 + 1218 + 12 + 9 + 9
18 + 9 + 9 + 912 + 12 + 12 + 9
18 + 12 + 9 + 918 + 12 + 12 + 9

24 + 12 + 12 + 9
24 + 18 + 12 + 9
12 + 12 + 12 + 12
18 + 12 + 12 + 12
24 + 12 + 12 + 12
18 + 18 + 12 + 12


Outdoor Unit 
Model Number
YN020GLSI24M2G
YN030GLSI24M3G
YN040GLSI24M4G
YN050GLSI24M5G
Number of 
Available Zones
Two (2)Three (3)Four (4)Five (5)
Five Zones 
Utilized



9 + 9 + 9 + 9 + 9
12 + 9 + 9 + 9 + 9
18 + 9 + 9 + 9 + 9
24 + 9 + 9 + 9 + 9
12 + 12 + 9 + 9 + 9
18 + 12 + 9 + 9 + 9
24 + 12 + 9 + 9 + 9
18 + 18 + 9 + 9 + 9
12 + 12 + 12 + 9 + 9
18 + 12 + 12 + 9 + 9
12 + 12 + 12 + 12 + 9
18 + 12 + 12 + 12 + 9
12 + 12 + 12 + 12 + 12
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