DC inverter ARV Individual Series technical manual
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3.6 Correction of capacity
Length Correction Coefficient “K3” of Indoor/Outdoor Unit Connecting Tube.
Rate of change in cooling capacity
Rate of change in heating capacity
Positive side of high head means installation height of outdoor unit is higher than indoor unit;
Negative side of high head means installation height of outdoor unit is lower than indoor unit;
Coefficient “K3” is the change ratio of basic capacity.