Combinations for Outdoor and Indoor Units
No. 1 2 3 4 5
Name Motor Fan Electric Box Gas Valve Assembly Liquid Valve Assembly
MODEL 4TXM2218 4TXM2224 4TXM2230 4TXM2236 4TXM2242
Minimum number of connectable indoor units 2 2 2 2 2
Maximum number of connectable indoor units 2 3 4 4 5
Product Introduction
The 22 Series Multi-split system utilizes inverter compressor technology, which enables the outdoor unit to
send refrigerant to multiple indoor units of varying capacities. It is critical, however, that heat loss and heat
gain calculations be performed to properly size the multi-split system.
Primary Component Identification
The multi-split systems can operate with a combination ratio from 50% to 150%. This means that the total
combined nominal cooling capacity of the connected indoor units can be up to 1.5 times the nominal cooling
capacity of the outdoor unit.
Note: When the total capacity of the indoor units exceeds the total capacity of the outdoor unit, the system will
be restricted by the capacity of the outdoor unit. All indoor units would not be able to operate at full capacity at
the same time. If the indoor unit combined capacity is less than 100% of the outdoor units' capacity, the system
capacity is limited to the indoor unit(s) combined capacity.
7
22 Series Multi-Zone
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