Carrier 38VMA Series, Service Manual, Page: 5 / 112

Table 1 – Indoor Unit Capacity Chart
Connectable Indoor Unit Capacity
Index *
7 9 12 15 18 24 30 36 48 54 72 96
Outside air 40VMA
• • • • •
4-way cassette 40VMF
• • • • • • • •
Compact 4-way cassette 40VMC
• • • •
High wall 40VMW
• • • • • • •
Low static duct 40VML
• • • • • •
Medium static duct 40VMM
• • • • • • • • •
High static duct 40VMH
• • • • • • •
Vertical AHU 40VMV
• • • • • •
Underceiling/floor 40VMU
• • • • • • •
Floor console recessed 40VMR
• • • • • •
* For example: The capacity index of 40VMF009---3 and 40VMV024 is 9 and 24 respectively.
2. Capacity Range
Connected capacity ratio =
Total capacity index of the indoor units
Capacity index of the outdoor units
Keep a proper connected capacity ratio for the entire system.
Table 2 - Connected Capacity Ratio
Min. combination ratio
Max. combination ratio
40VMH for all IDUs *1 ,
40VMV for all IDUs
40VMA connected with
other IDUs
At least one 40VMH *1 or
40VMV connected
Other indoor unit
models
50% 100% 100% *2 130% *3 135%
NOTES
*1 When 40VMH048, 054, 072, 096---3 is installed.
*2 When outside air units (40VMA) and standard indoor units are connected, the total capacity index of the 40VMA must be
limited to 30% or less of the capacity index of the outdoor unit.
*3 When the total capacity of 40VMH048, 054, 072, 096---3 or 40VMV exceeds 30%, the combination must not exceeds 100%.
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