High Efficiency High Wall
Indoor Unit
Ceiling Concealed
Indoor Unit
Cassette
Indoor Unit
Floor/Ceiling
Indoor Unit
Console
Indoor Unit
Some of the 22 SEER multi-split outdoor units are able to support up to five indoor units. The figure below
illustrates that a mixture of indoor types may be used on a single 4TXM22 multi port system, provided the
combination is approved. Please reference the multi-zone approved combinations matrix on page 8.
Indoor Unit Model Capacity (BTUh) Outdoor Unit
High Efficiency High Wall
4MXW2709A10N 9,000
4TXM2218A12N
4TXM2221A13N
4TXM2224A14N
4TXM2230A15N
4TXM2236A15N
4TXM2242A15N
4MXW2712A10N 12,000
4MXW2718A10N 18,000
4MXW2724A10N 24,000
Floor/Ceiling
4MXX8509A10N 9,000
4MXX8512A10N 12,000
4MXX8518A10N 18,000
4MXX8524A10N 24,000
Ceiling Concealed
4MXD8509A10N 9,000
4MXD8512A10N 12,000
4MXD8518A10N 18,000
4MXD8521A10N 21,000
4MXD8524A10N 24,000
Cassette
4MXC8512A10N 12,000
4MXC8518A10N 18,000
4MXC8524A10N 24,000
Console
4MXF8509A10N 9,000
4MXF8512A10N 12,000
4MXF8518A10N 18,000
Operating Ranges
Cooling Operating Range Outdoor Temperature 0 - 118°F (-18.0 - 48°C)
Heating Operating Range 18K-24K Units Outdoor Temperature -4.0 - 75°F (-20 - 24°C)
Heating Operating Range 24K-42K Units Outdoor Temperature -4.0 - 86°F (-20 - 30°C)
Combinations for Outdoor and Indoor Units
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.
9
22 Series Multi-Zone
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